1 | /* $Id: UefiVariableStoreImpl.cpp 98262 2023-01-24 01:42:14Z vboxsync $ */
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2 | /** @file
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3 | * VirtualBox COM NVRAM store class implementation
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2021-2023 Oracle and/or its affiliates.
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8 | *
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9 | * This file is part of VirtualBox base platform packages, as
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10 | * available from https://www.virtualbox.org.
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11 | *
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12 | * This program is free software; you can redistribute it and/or
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13 | * modify it under the terms of the GNU General Public License
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14 | * as published by the Free Software Foundation, in version 3 of the
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15 | * License.
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16 | *
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17 | * This program is distributed in the hope that it will be useful, but
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18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 | * General Public License for more details.
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21 | *
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22 | * You should have received a copy of the GNU General Public License
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23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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24 | *
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25 | * SPDX-License-Identifier: GPL-3.0-only
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26 | */
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27 |
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28 | #define LOG_GROUP LOG_GROUP_MAIN_UEFIVARIABLESTORE
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29 | #include "LoggingNew.h"
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30 |
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31 | #include "UefiVariableStoreImpl.h"
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32 | #include "NvramStoreImpl.h"
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33 | #include "MachineImpl.h"
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34 |
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35 | #include "AutoStateDep.h"
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36 | #include "AutoCaller.h"
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37 |
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38 | #include "TrustAnchorsAndCerts.h"
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39 |
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40 | #include <VBox/com/array.h>
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41 |
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42 | #include <iprt/cpp/utils.h>
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43 | #include <iprt/efi.h>
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44 | #include <iprt/file.h>
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45 | #include <iprt/vfs.h>
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46 |
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47 | #include <iprt/formats/efi-varstore.h>
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48 | #include <iprt/formats/efi-signature.h>
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49 |
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50 | // defines
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51 | ////////////////////////////////////////////////////////////////////////////////
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52 |
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53 | // globals
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54 | ////////////////////////////////////////////////////////////////////////////////
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55 |
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56 | /////////////////////////////////////////////////////////////////////////////
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57 | // UefiVariableStore::Data structure
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58 | /////////////////////////////////////////////////////////////////////////////
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59 |
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60 | struct UefiVariableStore::Data
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61 | {
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62 | Data()
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63 | : pParent(NULL),
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64 | pMachine(NULL),
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65 | hVfsUefiVarStore(NIL_RTVFS)
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66 | { }
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67 |
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68 | /** The NVRAM store owning this UEFI variable store intstance. */
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69 | NvramStore * const pParent;
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70 | /** The machine this UEFI variable store belongs to. */
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71 | Machine * const pMachine;
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72 | /** VFS handle to the UEFI variable store. */
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73 | RTVFS hVfsUefiVarStore;
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74 | };
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75 |
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76 | // constructor / destructor
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77 | ////////////////////////////////////////////////////////////////////////////////
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78 |
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79 | DEFINE_EMPTY_CTOR_DTOR(UefiVariableStore)
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80 |
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81 | HRESULT UefiVariableStore::FinalConstruct()
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82 | {
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83 | return BaseFinalConstruct();
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84 | }
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85 |
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86 | void UefiVariableStore::FinalRelease()
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87 | {
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88 | uninit();
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89 | BaseFinalRelease();
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90 | }
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91 |
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92 | // public initializer/uninitializer for internal purposes only
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93 | /////////////////////////////////////////////////////////////////////////////
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94 |
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95 | /**
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96 | * Initializes the UEFI variable store object.
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97 | *
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98 | * @returns COM result indicator.
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99 | * @param aParent The NVRAM store owning the UEFI NVRAM content.
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100 | * @param pMachine
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101 | */
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102 | HRESULT UefiVariableStore::init(NvramStore *aParent, Machine *pMachine)
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103 | {
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104 | LogFlowThisFuncEnter();
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105 | LogFlowThisFunc(("aParent: %p\n", aParent));
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106 |
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107 | ComAssertRet(aParent, E_INVALIDARG);
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108 |
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109 | /* Enclose the state transition NotReady->InInit->Ready */
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110 | AutoInitSpan autoInitSpan(this);
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111 | AssertReturn(autoInitSpan.isOk(), E_FAIL);
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112 |
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113 | m = new Data();
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114 |
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115 | /* share the parent weakly */
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116 | unconst(m->pParent) = aParent;
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117 | unconst(m->pMachine) = pMachine;
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118 | m->hVfsUefiVarStore = NIL_RTVFS;
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119 |
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120 | autoInitSpan.setSucceeded();
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121 |
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122 | LogFlowThisFuncLeave();
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123 | return S_OK;
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124 | }
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125 |
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126 |
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127 | /**
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128 | * Uninitializes the instance and sets the ready flag to FALSE.
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129 | * Called either from FinalRelease() or by the parent when it gets destroyed.
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130 | */
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131 | void UefiVariableStore::uninit()
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132 | {
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133 | LogFlowThisFuncEnter();
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134 |
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135 | /* Enclose the state transition Ready->InUninit->NotReady */
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136 | AutoUninitSpan autoUninitSpan(this);
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137 | if (autoUninitSpan.uninitDone())
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138 | return;
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139 |
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140 | Assert(m->hVfsUefiVarStore == NIL_RTVFS);
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141 |
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142 | unconst(m->pParent) = NULL;
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143 | unconst(m->pMachine) = NULL;
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144 |
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145 | delete m;
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146 | m = NULL;
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147 |
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148 | LogFlowThisFuncLeave();
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149 | }
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150 |
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151 |
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152 | HRESULT UefiVariableStore::getSecureBootEnabled(BOOL *pfEnabled)
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153 | {
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154 | /* the machine needs to be mutable */
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155 | AutoMutableStateDependency adep(m->pMachine);
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156 | if (FAILED(adep.hrc())) return adep.hrc();
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157 |
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158 | HRESULT hrc = i_retainUefiVariableStore(true /*fReadonly*/);
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159 | if (FAILED(hrc)) return hrc;
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160 |
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161 | AutoReadLock rlock(this COMMA_LOCKVAL_SRC_POS);
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162 |
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163 | uint64_t cbVar = 0;
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164 | int vrc = i_uefiVarStoreQueryVarSz("PK", &cbVar);
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165 | if (RT_SUCCESS(vrc))
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166 | {
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167 | *pfEnabled = TRUE;
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168 |
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169 | /* Check the SecureBootEnable variable for the override. */
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170 | vrc = i_uefiVarStoreQueryVarSz("SecureBootEnable", &cbVar);
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171 | if (RT_SUCCESS(vrc))
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172 | {
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173 | if (cbVar == sizeof(uint8_t))
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174 | {
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175 | uint8_t bVar = 0;
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176 | hrc = i_uefiVarStoreQueryVar("SecureBootEnable", &bVar, sizeof(bVar));
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177 | if (SUCCEEDED(hrc))
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178 | *pfEnabled = bVar == 0x0 ? FALSE : TRUE;
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179 | }
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180 | else
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181 | hrc = setError(E_FAIL, tr("The 'SecureBootEnable' variable size is bogus (expected 1, got %llu)"), cbVar);
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182 | }
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183 | else if (vrc != VERR_FILE_NOT_FOUND)
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184 | hrc = setError(E_FAIL, tr("Failed to query the 'SecureBootEnable' variable size: %Rrc"), vrc);
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185 | }
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186 | else if (vrc == VERR_FILE_NOT_FOUND) /* No platform key means no secure boot. */
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187 | *pfEnabled = FALSE;
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188 | else
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189 | hrc = setError(E_FAIL, tr("Failed to query the platform key variable size: %Rrc"), vrc);
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190 |
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191 | i_releaseUefiVariableStore();
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192 | return hrc;
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193 | }
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194 |
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195 |
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196 | HRESULT UefiVariableStore::setSecureBootEnabled(BOOL fEnabled)
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197 | {
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198 | /* the machine needs to be mutable */
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199 | AutoMutableStateDependency adep(m->pMachine);
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200 | if (FAILED(adep.hrc())) return adep.hrc();
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201 |
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202 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
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203 | if (FAILED(hrc)) return hrc;
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204 |
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205 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
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206 |
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207 | EFI_GUID GuidSecureBootEnable = EFI_SECURE_BOOT_ENABLE_DISABLE_GUID;
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208 | uint64_t cbVar = 0;
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209 | int vrc = i_uefiVarStoreQueryVarSz("PK", &cbVar);
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210 | if (RT_SUCCESS(vrc))
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211 | {
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212 | uint8_t bVar = fEnabled ? 0x1 : 0x0;
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213 | hrc = i_uefiVarStoreSetVar(&GuidSecureBootEnable, "SecureBootEnable",
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214 | EFI_VAR_HEADER_ATTR_NON_VOLATILE
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215 | | EFI_VAR_HEADER_ATTR_BOOTSERVICE_ACCESS
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216 | | EFI_VAR_HEADER_ATTR_RUNTIME_ACCESS,
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217 | &bVar, sizeof(bVar));
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218 | }
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219 | else if (vrc == VERR_FILE_NOT_FOUND) /* No platform key means no secure boot support. */
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220 | hrc = setError(VBOX_E_OBJECT_NOT_FOUND, tr("Secure boot is not available because the platform key (PK) is not enrolled"));
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221 | else
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222 | hrc = setError(E_FAIL, tr("Failed to query the platform key variable size: %Rrc"), vrc);
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223 |
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224 | i_releaseUefiVariableStore();
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225 | return hrc;
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226 | }
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227 |
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228 |
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229 | HRESULT UefiVariableStore::addVariable(const com::Utf8Str &aName, const com::Guid &aOwnerUuid,
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230 | const std::vector<UefiVariableAttributes_T> &aAttributes,
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231 | const std::vector<BYTE> &aData)
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232 | {
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233 | /* the machine needs to be mutable */
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234 | AutoMutableStateDependency adep(m->pMachine);
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235 | if (FAILED(adep.hrc())) return adep.hrc();
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236 |
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237 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
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238 | if (FAILED(hrc)) return hrc;
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239 |
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240 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
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241 |
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242 | uint32_t fAttr = i_uefiVarAttrToMask(aAttributes);
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243 | EFI_GUID OwnerGuid;
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244 | RTEfiGuidFromUuid(&OwnerGuid, aOwnerUuid.raw());
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245 | hrc = i_uefiVarStoreSetVar(&OwnerGuid, aName.c_str(), fAttr, &aData.front(), aData.size());
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246 |
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247 | i_releaseUefiVariableStore();
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248 | return hrc;
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249 | }
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250 |
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251 |
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252 | HRESULT UefiVariableStore::deleteVariable(const com::Utf8Str &aName, const com::Guid &aOwnerUuid)
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253 | {
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254 | RT_NOREF(aOwnerUuid);
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255 |
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256 | /* the machine needs to be mutable */
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257 | AutoMutableStateDependency adep(m->pMachine);
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258 | if (FAILED(adep.hrc())) return adep.hrc();
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259 |
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260 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
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261 | if (FAILED(hrc)) return hrc;
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262 |
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263 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
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264 |
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265 | char szVarPath[_1K];
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266 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/raw/%s", aName.c_str());
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267 | if (cch > 0)
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268 | {
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269 | RTVFSDIR hVfsDirRoot = NIL_RTVFSDIR;
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270 | int vrc = RTVfsOpenRoot(m->hVfsUefiVarStore, &hVfsDirRoot);
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271 | if (RT_SUCCESS(vrc))
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272 | {
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273 | vrc = RTVfsDirRemoveDir(hVfsDirRoot, szVarPath, 0 /*fFlags*/);
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274 | RTVfsDirRelease(hVfsDirRoot);
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275 | if (RT_FAILURE(vrc))
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276 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to remove variable '%s' (%Rrc)"), aName.c_str(), vrc);
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277 | }
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278 | else
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279 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to open the variable store root (%Rrc)"), vrc);
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280 | }
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281 | else
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282 | hrc = setError(E_FAIL, tr("The variable name is too long"));
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283 |
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284 | i_releaseUefiVariableStore();
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285 | return hrc;
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286 | }
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287 |
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288 |
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289 | HRESULT UefiVariableStore::changeVariable(const com::Utf8Str &aName, const std::vector<BYTE> &aData)
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290 | {
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291 | /* the machine needs to be mutable */
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292 | AutoMutableStateDependency adep(m->pMachine);
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293 | if (FAILED(adep.hrc())) return adep.hrc();
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294 |
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295 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
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296 | if (FAILED(hrc)) return hrc;
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297 |
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298 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
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299 |
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300 | RTVFSFILE hVfsFile = NIL_RTVFSFILE;
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301 | hrc = i_uefiVarStoreOpenVar(aName.c_str(), &hVfsFile);
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302 | if (SUCCEEDED(hrc))
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303 | {
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304 | int vrc = RTVfsFileSetSize(hVfsFile, aData.size(), RTVFSFILE_SIZE_F_NORMAL);
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305 | if (RT_SUCCESS(vrc))
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306 | {
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307 | vrc = RTVfsFileWriteAt(hVfsFile, 0 /*off*/, &aData.front(), aData.size(), NULL /*pcbWritten*/);
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308 | if (RT_FAILURE(vrc))
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309 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to data for variable '%s' (%Rrc)"), aName.c_str(), vrc);
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310 | }
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311 | else
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312 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to allocate space for the variable '%s' (%Rrc)"), aName.c_str(), vrc);
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313 |
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314 | RTVfsFileRelease(hVfsFile);
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315 | }
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316 |
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317 | i_releaseUefiVariableStore();
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318 | return hrc;
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319 | }
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320 |
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321 |
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322 | HRESULT UefiVariableStore::queryVariableByName(const com::Utf8Str &aName, com::Guid &aOwnerUuid,
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323 | std::vector<UefiVariableAttributes_T> &aAttributes,
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324 | std::vector<BYTE> &aData)
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325 | {
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326 | /* the machine needs to be mutable */
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327 | AutoMutableStateDependency adep(m->pMachine);
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328 | if (FAILED(adep.hrc())) return adep.hrc();
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329 |
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330 | HRESULT hrc = i_retainUefiVariableStore(true /*fReadonly*/);
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331 | if (FAILED(hrc)) return hrc;
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332 |
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333 | AutoReadLock rlock(this COMMA_LOCKVAL_SRC_POS);
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334 |
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335 | uint32_t fAttr;
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336 | int vrc = i_uefiVarStoreQueryVarAttr(aName.c_str(), &fAttr);
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337 | if (RT_SUCCESS(vrc))
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338 | {
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339 | RTUUID OwnerUuid;
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340 | vrc = i_uefiVarStoreQueryVarOwnerUuid(aName.c_str(), &OwnerUuid);
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341 | if (RT_SUCCESS(vrc))
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342 | {
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343 | uint64_t cbVar = 0;
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344 | vrc = i_uefiVarStoreQueryVarSz(aName.c_str(), &cbVar);
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345 | if (RT_SUCCESS(vrc))
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346 | {
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347 | aData.resize(cbVar);
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348 | hrc = i_uefiVarStoreQueryVar(aName.c_str(), &aData.front(), aData.size());
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349 | if (SUCCEEDED(hrc))
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350 | {
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351 | aOwnerUuid = com::Guid(OwnerUuid);
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352 | i_uefiAttrMaskToVec(fAttr, aAttributes);
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353 | }
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354 | }
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355 | else
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356 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to query the size of variable '%s': %Rrc"), aName.c_str(), vrc);
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357 | }
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358 | else
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359 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to query the owner UUID of variable '%s': %Rrc"), aName.c_str(), vrc);
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360 | }
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361 | else
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362 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Failed to query the attributes of variable '%s': %Rrc"), aName.c_str(), vrc);
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363 |
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364 | i_releaseUefiVariableStore();
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365 | return hrc;
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366 | }
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367 |
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368 |
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369 | HRESULT UefiVariableStore::queryVariables(std::vector<com::Utf8Str> &aNames,
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370 | std::vector<com::Guid> &aOwnerUuids)
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371 | {
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372 | /* the machine needs to be mutable */
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373 | AutoMutableStateDependency adep(m->pMachine);
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374 | if (FAILED(adep.hrc())) return adep.hrc();
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375 |
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376 | HRESULT hrc = i_retainUefiVariableStore(true /*fReadonly*/);
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377 | if (FAILED(hrc)) return hrc;
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378 |
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379 | AutoReadLock rlock(this COMMA_LOCKVAL_SRC_POS);
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380 |
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381 | RTVFSDIR hVfsDir = NIL_RTVFSDIR;
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382 | int vrc = RTVfsDirOpen(m->hVfsUefiVarStore, "by-name", 0 /*fFlags*/, &hVfsDir);
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383 | if (RT_SUCCESS(vrc))
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384 | {
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385 | RTDIRENTRYEX DirEntry;
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386 |
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387 | vrc = RTVfsDirReadEx(hVfsDir, &DirEntry, NULL, RTFSOBJATTRADD_NOTHING);
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388 | for (;;)
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389 | {
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390 | RTUUID OwnerUuid;
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391 | vrc = i_uefiVarStoreQueryVarOwnerUuid(DirEntry.szName, &OwnerUuid);
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392 | if (RT_FAILURE(vrc))
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393 | break;
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394 |
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395 | aNames.push_back(Utf8Str(DirEntry.szName));
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396 | aOwnerUuids.push_back(com::Guid(OwnerUuid));
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397 |
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398 | vrc = RTVfsDirReadEx(hVfsDir, &DirEntry, NULL, RTFSOBJATTRADD_NOTHING);
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399 | if (RT_FAILURE(vrc))
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400 | break;
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401 | }
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402 |
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403 | if (vrc == VERR_NO_MORE_FILES)
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404 | vrc = VINF_SUCCESS;
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405 |
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406 | RTVfsDirRelease(hVfsDir);
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407 | }
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408 |
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409 | i_releaseUefiVariableStore();
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410 |
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411 | if (RT_FAILURE(vrc))
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412 | return setError(VBOX_E_IPRT_ERROR, tr("Failed to query the variables: %Rrc"), vrc);
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413 |
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414 | return S_OK;
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415 | }
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416 |
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417 |
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418 | HRESULT UefiVariableStore::enrollOraclePlatformKey(void)
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419 | {
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420 | /* the machine needs to be mutable */
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421 | AutoMutableStateDependency adep(m->pMachine);
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422 | if (FAILED(adep.hrc())) return adep.hrc();
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423 |
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424 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
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425 | if (FAILED(hrc)) return hrc;
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426 |
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427 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
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428 |
|
---|
429 | EFI_GUID GuidGlobalVar = EFI_GLOBAL_VARIABLE_GUID;
|
---|
430 |
|
---|
431 | /** @todo This conversion from EFI GUID -> IPRT UUID -> Com GUID is nuts... */
|
---|
432 | EFI_GUID GuidOwnerVBox = EFI_SIGNATURE_OWNER_GUID_VBOX;
|
---|
433 | RTUUID UuidVBox;
|
---|
434 | RTEfiGuidToUuid(&UuidVBox, &GuidOwnerVBox);
|
---|
435 |
|
---|
436 | const com::Guid GuidVBox(UuidVBox);
|
---|
437 |
|
---|
438 | hrc = i_uefiVarStoreAddSignatureToDb(&GuidGlobalVar, "PK", g_abUefiOracleDefPk, g_cbUefiOracleDefPk,
|
---|
439 | GuidVBox, SignatureType_X509);
|
---|
440 |
|
---|
441 | i_releaseUefiVariableStore();
|
---|
442 | return hrc;
|
---|
443 | }
|
---|
444 |
|
---|
445 |
|
---|
446 | HRESULT UefiVariableStore::enrollPlatformKey(const std::vector<BYTE> &aData, const com::Guid &aOwnerUuid)
|
---|
447 | {
|
---|
448 | /* the machine needs to be mutable */
|
---|
449 | AutoMutableStateDependency adep(m->pMachine);
|
---|
450 | if (FAILED(adep.hrc())) return adep.hrc();
|
---|
451 |
|
---|
452 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
|
---|
453 | if (FAILED(hrc)) return hrc;
|
---|
454 |
|
---|
455 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
|
---|
456 |
|
---|
457 | EFI_GUID GuidGlobalVar = EFI_GLOBAL_VARIABLE_GUID;
|
---|
458 | hrc = i_uefiVarStoreAddSignatureToDbVec(&GuidGlobalVar, "PK", aData, aOwnerUuid, SignatureType_X509);
|
---|
459 |
|
---|
460 | i_releaseUefiVariableStore();
|
---|
461 | return hrc;
|
---|
462 | }
|
---|
463 |
|
---|
464 |
|
---|
465 | HRESULT UefiVariableStore::addKek(const std::vector<BYTE> &aData, const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
466 | {
|
---|
467 | /* the machine needs to be mutable */
|
---|
468 | AutoMutableStateDependency adep(m->pMachine);
|
---|
469 | if (FAILED(adep.hrc())) return adep.hrc();
|
---|
470 |
|
---|
471 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
|
---|
472 | if (FAILED(hrc)) return hrc;
|
---|
473 |
|
---|
474 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
|
---|
475 |
|
---|
476 | EFI_GUID GuidGlobalVar = EFI_GLOBAL_VARIABLE_GUID;
|
---|
477 | hrc = i_uefiVarStoreAddSignatureToDbVec(&GuidGlobalVar, "KEK", aData, aOwnerUuid, enmSignatureType);
|
---|
478 |
|
---|
479 | i_releaseUefiVariableStore();
|
---|
480 | return hrc;
|
---|
481 | }
|
---|
482 |
|
---|
483 |
|
---|
484 | HRESULT UefiVariableStore::addSignatureToDb(const std::vector<BYTE> &aData, const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
485 | {
|
---|
486 | /* the machine needs to be mutable */
|
---|
487 | AutoMutableStateDependency adep(m->pMachine);
|
---|
488 | if (FAILED(adep.hrc())) return adep.hrc();
|
---|
489 |
|
---|
490 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
|
---|
491 | if (FAILED(hrc)) return hrc;
|
---|
492 |
|
---|
493 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
|
---|
494 |
|
---|
495 | EFI_GUID GuidSecurityDb = EFI_GLOBAL_VARIABLE_GUID;
|
---|
496 | hrc = i_uefiVarStoreAddSignatureToDbVec(&GuidSecurityDb, "db", aData, aOwnerUuid, enmSignatureType);
|
---|
497 |
|
---|
498 | i_releaseUefiVariableStore();
|
---|
499 | return hrc;
|
---|
500 | }
|
---|
501 |
|
---|
502 |
|
---|
503 | HRESULT UefiVariableStore::addSignatureToDbx(const std::vector<BYTE> &aData, const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
504 | {
|
---|
505 | /* the machine needs to be mutable */
|
---|
506 | AutoMutableStateDependency adep(m->pMachine);
|
---|
507 | if (FAILED(adep.hrc())) return adep.hrc();
|
---|
508 |
|
---|
509 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
|
---|
510 | if (FAILED(hrc)) return hrc;
|
---|
511 |
|
---|
512 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
|
---|
513 |
|
---|
514 | EFI_GUID GuidSecurityDb = EFI_IMAGE_SECURITY_DATABASE_GUID;
|
---|
515 | hrc = i_uefiVarStoreAddSignatureToDbVec(&GuidSecurityDb, "dbx", aData, aOwnerUuid, enmSignatureType);
|
---|
516 |
|
---|
517 | i_releaseUefiVariableStore();
|
---|
518 | return hrc;
|
---|
519 | }
|
---|
520 |
|
---|
521 |
|
---|
522 | HRESULT UefiVariableStore::enrollDefaultMsSignatures(void)
|
---|
523 | {
|
---|
524 | AutoMutableStateDependency adep(m->pMachine);
|
---|
525 | if (FAILED(adep.hrc())) return adep.hrc();
|
---|
526 |
|
---|
527 | HRESULT hrc = i_retainUefiVariableStore(false /*fReadonly*/);
|
---|
528 | if (FAILED(hrc)) return hrc;
|
---|
529 |
|
---|
530 | AutoWriteLock wlock(this COMMA_LOCKVAL_SRC_POS);
|
---|
531 |
|
---|
532 | EFI_GUID EfiGuidSecurityDb = EFI_IMAGE_SECURITY_DATABASE_GUID;
|
---|
533 | EFI_GUID EfiGuidGlobalVar = EFI_GLOBAL_VARIABLE_GUID;
|
---|
534 |
|
---|
535 | /** @todo This conversion from EFI GUID -> IPRT UUID -> Com GUID is nuts... */
|
---|
536 | EFI_GUID EfiGuidMs = EFI_SIGNATURE_OWNER_GUID_MICROSOFT;
|
---|
537 | RTUUID UuidMs;
|
---|
538 | RTEfiGuidToUuid(&UuidMs, &EfiGuidMs);
|
---|
539 |
|
---|
540 | const com::Guid GuidMs(UuidMs);
|
---|
541 |
|
---|
542 | hrc = i_uefiVarStoreAddSignatureToDb(&EfiGuidGlobalVar, "KEK", g_abUefiMicrosoftKek, g_cbUefiMicrosoftKek,
|
---|
543 | GuidMs, SignatureType_X509);
|
---|
544 | if (SUCCEEDED(hrc))
|
---|
545 | {
|
---|
546 | hrc = i_uefiVarStoreAddSignatureToDb(&EfiGuidSecurityDb, "db", g_abUefiMicrosoftCa, g_cbUefiMicrosoftCa,
|
---|
547 | GuidMs, SignatureType_X509);
|
---|
548 | if (SUCCEEDED(hrc))
|
---|
549 | hrc = i_uefiVarStoreAddSignatureToDb(&EfiGuidSecurityDb, "db", g_abUefiMicrosoftProPca, g_cbUefiMicrosoftProPca,
|
---|
550 | GuidMs, SignatureType_X509);
|
---|
551 | }
|
---|
552 |
|
---|
553 | i_releaseUefiVariableStore();
|
---|
554 | return hrc;
|
---|
555 | }
|
---|
556 |
|
---|
557 |
|
---|
558 | /**
|
---|
559 | * Sets the given attributes for the given EFI variable store variable.
|
---|
560 | *
|
---|
561 | * @returns IPRT status code.
|
---|
562 | * @param pszVar The variable to set the attributes for.
|
---|
563 | * @param fAttr The attributes to set, see EFI_VAR_HEADER_ATTR_XXX.
|
---|
564 | */
|
---|
565 | int UefiVariableStore::i_uefiVarStoreSetVarAttr(const char *pszVar, uint32_t fAttr)
|
---|
566 | {
|
---|
567 | char szVarPath[_1K];
|
---|
568 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/raw/%s/attr", pszVar);
|
---|
569 | Assert(cch > 0); RT_NOREF(cch);
|
---|
570 |
|
---|
571 | RTVFSFILE hVfsFileAttr = NIL_RTVFSFILE;
|
---|
572 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
573 | RTFILE_O_READWRITE | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
574 | &hVfsFileAttr);
|
---|
575 | if (RT_SUCCESS(vrc))
|
---|
576 | {
|
---|
577 | uint32_t fAttrLe = RT_H2LE_U32(fAttr);
|
---|
578 | vrc = RTVfsFileWrite(hVfsFileAttr, &fAttrLe, sizeof(fAttrLe), NULL /*pcbWritten*/);
|
---|
579 | RTVfsFileRelease(hVfsFileAttr);
|
---|
580 | }
|
---|
581 |
|
---|
582 | return vrc;
|
---|
583 | }
|
---|
584 |
|
---|
585 |
|
---|
586 | /**
|
---|
587 | * Queries the attributes for the given EFI variable store variable.
|
---|
588 | *
|
---|
589 | * @returns IPRT status code.
|
---|
590 | * @param pszVar The variable to query the attributes for.
|
---|
591 | * @param pfAttr Where to store the attributes on success.
|
---|
592 | */
|
---|
593 | int UefiVariableStore::i_uefiVarStoreQueryVarAttr(const char *pszVar, uint32_t *pfAttr)
|
---|
594 | {
|
---|
595 | char szVarPath[_1K];
|
---|
596 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/raw/%s/attr", pszVar);
|
---|
597 | Assert(cch > 0); RT_NOREF(cch);
|
---|
598 |
|
---|
599 | RTVFSFILE hVfsFileAttr = NIL_RTVFSFILE;
|
---|
600 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
601 | RTFILE_O_READ | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
602 | &hVfsFileAttr);
|
---|
603 | if (RT_SUCCESS(vrc))
|
---|
604 | {
|
---|
605 | uint32_t fAttrLe = 0;
|
---|
606 | vrc = RTVfsFileRead(hVfsFileAttr, &fAttrLe, sizeof(fAttrLe), NULL /*pcbRead*/);
|
---|
607 | RTVfsFileRelease(hVfsFileAttr);
|
---|
608 | if (RT_SUCCESS(vrc))
|
---|
609 | *pfAttr = RT_LE2H_U32(fAttrLe);
|
---|
610 | }
|
---|
611 |
|
---|
612 | return vrc;
|
---|
613 | }
|
---|
614 |
|
---|
615 |
|
---|
616 | /**
|
---|
617 | * Queries the data size for the given variable.
|
---|
618 | *
|
---|
619 | * @returns IPRT status code.
|
---|
620 | * @param pszVar The variable to query the size for.
|
---|
621 | * @param pcbVar Where to store the size of the variable data on success.
|
---|
622 | */
|
---|
623 | int UefiVariableStore::i_uefiVarStoreQueryVarSz(const char *pszVar, uint64_t *pcbVar)
|
---|
624 | {
|
---|
625 | char szVarPath[_1K];
|
---|
626 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/by-name/%s", pszVar);
|
---|
627 | Assert(cch > 0); RT_NOREF(cch);
|
---|
628 |
|
---|
629 | RTVFSFILE hVfsFile = NIL_RTVFSFILE;
|
---|
630 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
631 | RTFILE_O_READ | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
632 | &hVfsFile);
|
---|
633 | if (RT_SUCCESS(vrc))
|
---|
634 | {
|
---|
635 | vrc = RTVfsFileQuerySize(hVfsFile, pcbVar);
|
---|
636 | RTVfsFileRelease(hVfsFile);
|
---|
637 | }
|
---|
638 | else if (vrc == VERR_PATH_NOT_FOUND)
|
---|
639 | vrc = VERR_FILE_NOT_FOUND;
|
---|
640 |
|
---|
641 | return vrc;
|
---|
642 | }
|
---|
643 |
|
---|
644 |
|
---|
645 | /**
|
---|
646 | * Returns the owner UUID of the given variable.
|
---|
647 | *
|
---|
648 | * @returns IPRT status code.
|
---|
649 | * @param pszVar The variable to query the owner UUID for.
|
---|
650 | * @param pUuid Where to store the owner UUID on success.
|
---|
651 | */
|
---|
652 | int UefiVariableStore::i_uefiVarStoreQueryVarOwnerUuid(const char *pszVar, PRTUUID pUuid)
|
---|
653 | {
|
---|
654 | char szVarPath[_1K];
|
---|
655 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/raw/%s/uuid", pszVar);
|
---|
656 | Assert(cch > 0); RT_NOREF(cch);
|
---|
657 |
|
---|
658 | RTVFSFILE hVfsFileAttr = NIL_RTVFSFILE;
|
---|
659 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
660 | RTFILE_O_READ | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
661 | &hVfsFileAttr);
|
---|
662 | if (RT_SUCCESS(vrc))
|
---|
663 | {
|
---|
664 | EFI_GUID OwnerGuid;
|
---|
665 | vrc = RTVfsFileRead(hVfsFileAttr, &OwnerGuid, sizeof(OwnerGuid), NULL /*pcbRead*/);
|
---|
666 | RTVfsFileRelease(hVfsFileAttr);
|
---|
667 | if (RT_SUCCESS(vrc))
|
---|
668 | RTEfiGuidToUuid(pUuid, &OwnerGuid);
|
---|
669 | }
|
---|
670 |
|
---|
671 | return vrc;
|
---|
672 | }
|
---|
673 |
|
---|
674 |
|
---|
675 | /**
|
---|
676 | * Converts the given vector of variables attributes to a bitmask used internally.
|
---|
677 | *
|
---|
678 | * @returns Mask of UEFI variable attributes.
|
---|
679 | * @param vecAttributes Vector of variable atttributes.
|
---|
680 | */
|
---|
681 | uint32_t UefiVariableStore::i_uefiVarAttrToMask(const std::vector<UefiVariableAttributes_T> &vecAttributes)
|
---|
682 | {
|
---|
683 | uint32_t fAttr = 0;
|
---|
684 |
|
---|
685 | for (size_t i = 0; i < vecAttributes.size(); i++)
|
---|
686 | fAttr |= (ULONG)vecAttributes[i];
|
---|
687 |
|
---|
688 | return fAttr;
|
---|
689 | }
|
---|
690 |
|
---|
691 |
|
---|
692 | /**
|
---|
693 | * Converts the given aatribute mask to the attribute vector used externally.
|
---|
694 | *
|
---|
695 | * @returns nothing.
|
---|
696 | * @param fAttr The attribute mask.
|
---|
697 | * @param aAttributes The vector to store the attibutes in.
|
---|
698 | */
|
---|
699 | void UefiVariableStore::i_uefiAttrMaskToVec(uint32_t fAttr, std::vector<UefiVariableAttributes_T> &aAttributes)
|
---|
700 | {
|
---|
701 | if (fAttr & EFI_VAR_HEADER_ATTR_NON_VOLATILE)
|
---|
702 | aAttributes.push_back(UefiVariableAttributes_NonVolatile);
|
---|
703 | if (fAttr & EFI_VAR_HEADER_ATTR_BOOTSERVICE_ACCESS)
|
---|
704 | aAttributes.push_back(UefiVariableAttributes_BootServiceAccess);
|
---|
705 | if (fAttr & EFI_VAR_HEADER_ATTR_RUNTIME_ACCESS)
|
---|
706 | aAttributes.push_back(UefiVariableAttributes_RuntimeAccess);
|
---|
707 | if (fAttr & EFI_VAR_HEADER_ATTR_HW_ERROR_RECORD)
|
---|
708 | aAttributes.push_back(UefiVariableAttributes_HwErrorRecord);
|
---|
709 | if (fAttr & EFI_AUTH_VAR_HEADER_ATTR_AUTH_WRITE_ACCESS)
|
---|
710 | aAttributes.push_back(UefiVariableAttributes_AuthWriteAccess);
|
---|
711 | if (fAttr & EFI_AUTH_VAR_HEADER_ATTR_TIME_BASED_AUTH_WRITE_ACCESS)
|
---|
712 | aAttributes.push_back(UefiVariableAttributes_AuthTimeBasedWriteAccess);
|
---|
713 | if (fAttr & EFI_AUTH_VAR_HEADER_ATTR_APPEND_WRITE)
|
---|
714 | aAttributes.push_back(UefiVariableAttributes_AuthAppendWrite);
|
---|
715 | }
|
---|
716 |
|
---|
717 |
|
---|
718 | /**
|
---|
719 | * Retains the reference of the variable store from the parent.
|
---|
720 | *
|
---|
721 | * @returns COM status code.
|
---|
722 | * @param fReadonly Flag whether the access is readonly.
|
---|
723 | */
|
---|
724 | HRESULT UefiVariableStore::i_retainUefiVariableStore(bool fReadonly)
|
---|
725 | {
|
---|
726 | Assert(m->hVfsUefiVarStore = NIL_RTVFS);
|
---|
727 | return m->pParent->i_retainUefiVarStore(&m->hVfsUefiVarStore, fReadonly);
|
---|
728 | }
|
---|
729 |
|
---|
730 |
|
---|
731 | /**
|
---|
732 | * Releases the reference of the variable store from the parent.
|
---|
733 | *
|
---|
734 | * @returns COM status code.
|
---|
735 | */
|
---|
736 | HRESULT UefiVariableStore::i_releaseUefiVariableStore(void)
|
---|
737 | {
|
---|
738 | RTVFS hVfs = m->hVfsUefiVarStore;
|
---|
739 |
|
---|
740 | m->hVfsUefiVarStore = NIL_RTVFS;
|
---|
741 | return m->pParent->i_releaseUefiVarStore(hVfs);
|
---|
742 | }
|
---|
743 |
|
---|
744 |
|
---|
745 | /**
|
---|
746 | * Adds the given variable to the variable store.
|
---|
747 | *
|
---|
748 | * @returns IPRT status code.
|
---|
749 | * @param pGuid The EFI GUID of the variable.
|
---|
750 | * @param pszVar The variable name.
|
---|
751 | * @param fAttr Attributes for the variable.
|
---|
752 | * @param phVfsFile Where to return the VFS file handle to the created variable on success.
|
---|
753 | */
|
---|
754 | HRESULT UefiVariableStore::i_uefiVarStoreAddVar(PCEFI_GUID pGuid, const char *pszVar, uint32_t fAttr, PRTVFSFILE phVfsFile)
|
---|
755 | {
|
---|
756 | RTUUID UuidVar;
|
---|
757 | RTEfiGuidToUuid(&UuidVar, pGuid);
|
---|
758 |
|
---|
759 | char szVarPath[_1K];
|
---|
760 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/by-uuid/%RTuuid/%s", &UuidVar, pszVar);
|
---|
761 | Assert(cch > 0); RT_NOREF(cch);
|
---|
762 |
|
---|
763 | HRESULT hrc = S_OK;
|
---|
764 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
765 | RTFILE_O_READWRITE | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
766 | phVfsFile);
|
---|
767 | if ( vrc == VERR_PATH_NOT_FOUND
|
---|
768 | || vrc == VERR_FILE_NOT_FOUND)
|
---|
769 | {
|
---|
770 | /*
|
---|
771 | * Try to create the owner GUID of the variable by creating the appropriate directory,
|
---|
772 | * ignore error if it exists already.
|
---|
773 | */
|
---|
774 | RTVFSDIR hVfsDirRoot = NIL_RTVFSDIR;
|
---|
775 | vrc = RTVfsOpenRoot(m->hVfsUefiVarStore, &hVfsDirRoot);
|
---|
776 | if (RT_SUCCESS(vrc))
|
---|
777 | {
|
---|
778 | char szGuidPath[_1K];
|
---|
779 | cch = RTStrPrintf2(szGuidPath, sizeof(szGuidPath), "by-uuid/%RTuuid", &UuidVar);
|
---|
780 | Assert(cch > 0);
|
---|
781 |
|
---|
782 | RTVFSDIR hVfsDirGuid = NIL_RTVFSDIR;
|
---|
783 | vrc = RTVfsDirCreateDir(hVfsDirRoot, szGuidPath, 0755, 0 /*fFlags*/, &hVfsDirGuid);
|
---|
784 | if (RT_SUCCESS(vrc))
|
---|
785 | RTVfsDirRelease(hVfsDirGuid);
|
---|
786 | else if (vrc == VERR_ALREADY_EXISTS)
|
---|
787 | vrc = VINF_SUCCESS;
|
---|
788 |
|
---|
789 | RTVfsDirRelease(hVfsDirRoot);
|
---|
790 | }
|
---|
791 | else
|
---|
792 | hrc = setError(E_FAIL, tr("Opening variable storage root directory failed: %Rrc"), vrc);
|
---|
793 |
|
---|
794 | if (RT_SUCCESS(vrc))
|
---|
795 | {
|
---|
796 | vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
797 | RTFILE_O_READWRITE | RTFILE_O_DENY_NONE | RTFILE_O_CREATE,
|
---|
798 | phVfsFile);
|
---|
799 | if (RT_SUCCESS(vrc))
|
---|
800 | vrc = i_uefiVarStoreSetVarAttr(pszVar, fAttr);
|
---|
801 | }
|
---|
802 |
|
---|
803 | if (RT_FAILURE(vrc))
|
---|
804 | hrc = setError(E_FAIL, tr("Creating the variable '%s' failed: %Rrc"), pszVar, vrc);
|
---|
805 | }
|
---|
806 |
|
---|
807 | return hrc;
|
---|
808 | }
|
---|
809 |
|
---|
810 |
|
---|
811 | /**
|
---|
812 | * Tries to open the given variable from the variable store and returns a file handle.
|
---|
813 | *
|
---|
814 | * @returns IPRT status code.
|
---|
815 | * @param pszVar The variable name.
|
---|
816 | * @param phVfsFile Where to return the VFS file handle to the created variable on success.
|
---|
817 | */
|
---|
818 | HRESULT UefiVariableStore::i_uefiVarStoreOpenVar(const char *pszVar, PRTVFSFILE phVfsFile)
|
---|
819 | {
|
---|
820 | char szVarPath[_1K];
|
---|
821 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/by-name/%s", pszVar);
|
---|
822 | Assert(cch > 0); RT_NOREF(cch);
|
---|
823 |
|
---|
824 | HRESULT hrc = S_OK;
|
---|
825 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
826 | RTFILE_O_READWRITE | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
827 | phVfsFile);
|
---|
828 | if ( vrc == VERR_PATH_NOT_FOUND
|
---|
829 | || vrc == VERR_FILE_NOT_FOUND)
|
---|
830 | hrc = setError(VBOX_E_OBJECT_NOT_FOUND, tr("The variable '%s' could not be found"), pszVar);
|
---|
831 | else if (RT_FAILURE(vrc))
|
---|
832 | hrc = setError(VBOX_E_IPRT_ERROR, tr("Couldn't open variable '%s' (%Rrc)"), pszVar, vrc);
|
---|
833 |
|
---|
834 | return hrc;
|
---|
835 | }
|
---|
836 |
|
---|
837 |
|
---|
838 | HRESULT UefiVariableStore::i_uefiVarStoreSetVar(PCEFI_GUID pGuid, const char *pszVar, uint32_t fAttr, const void *pvData, size_t cbData)
|
---|
839 | {
|
---|
840 | RTVFSFILE hVfsFileVar = NIL_RTVFSFILE;
|
---|
841 |
|
---|
842 | HRESULT hrc = i_uefiVarStoreAddVar(pGuid, pszVar, fAttr, &hVfsFileVar);
|
---|
843 | if (SUCCEEDED(hrc))
|
---|
844 | {
|
---|
845 | int vrc = RTVfsFileWrite(hVfsFileVar, pvData, cbData, NULL /*pcbWritten*/);
|
---|
846 | if (RT_FAILURE(vrc))
|
---|
847 | hrc = setError(E_FAIL, tr("Setting the variable '%s' failed: %Rrc"), pszVar, vrc);
|
---|
848 |
|
---|
849 | RTVfsFileRelease(hVfsFileVar);
|
---|
850 | }
|
---|
851 |
|
---|
852 | return hrc;
|
---|
853 | }
|
---|
854 |
|
---|
855 |
|
---|
856 | HRESULT UefiVariableStore::i_uefiVarStoreQueryVar(const char *pszVar, void *pvData, size_t cbData)
|
---|
857 | {
|
---|
858 | HRESULT hrc = S_OK;
|
---|
859 |
|
---|
860 | char szVarPath[_1K];
|
---|
861 | ssize_t cch = RTStrPrintf2(szVarPath, sizeof(szVarPath), "/by-name/%s", pszVar);
|
---|
862 | Assert(cch > 0); RT_NOREF(cch);
|
---|
863 |
|
---|
864 | RTVFSFILE hVfsFile = NIL_RTVFSFILE;
|
---|
865 | int vrc = RTVfsFileOpen(m->hVfsUefiVarStore, szVarPath,
|
---|
866 | RTFILE_O_READ | RTFILE_O_DENY_NONE | RTFILE_O_OPEN,
|
---|
867 | &hVfsFile);
|
---|
868 | if (RT_SUCCESS(vrc))
|
---|
869 | {
|
---|
870 | vrc = RTVfsFileRead(hVfsFile, pvData, cbData, NULL /*pcbRead*/);
|
---|
871 | if (RT_FAILURE(vrc))
|
---|
872 | hrc = setError(E_FAIL, tr("Failed to read data of variable '%s': %Rrc"), pszVar, vrc);
|
---|
873 |
|
---|
874 | RTVfsFileRelease(hVfsFile);
|
---|
875 | }
|
---|
876 | else
|
---|
877 | hrc = setError(E_FAIL, tr("Failed to open variable '%s' for reading: %Rrc"), pszVar, vrc);
|
---|
878 |
|
---|
879 | return hrc;
|
---|
880 | }
|
---|
881 |
|
---|
882 | HRESULT UefiVariableStore::i_uefiSigDbAddSig(RTEFISIGDB hEfiSigDb, const void *pvData, size_t cbData,
|
---|
883 | const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
884 | {
|
---|
885 | RTEFISIGTYPE enmSigType = RTEFISIGTYPE_INVALID;
|
---|
886 |
|
---|
887 | switch (enmSignatureType)
|
---|
888 | {
|
---|
889 | case SignatureType_X509:
|
---|
890 | enmSigType = RTEFISIGTYPE_X509;
|
---|
891 | break;
|
---|
892 | case SignatureType_Sha256:
|
---|
893 | enmSigType = RTEFISIGTYPE_SHA256;
|
---|
894 | break;
|
---|
895 | default:
|
---|
896 | return setError(E_FAIL, tr("The given signature type is not supported"));
|
---|
897 | }
|
---|
898 |
|
---|
899 | int vrc = RTEfiSigDbAddSignatureFromBuf(hEfiSigDb, enmSigType, aOwnerUuid.raw(), pvData, cbData);
|
---|
900 | if (RT_SUCCESS(vrc))
|
---|
901 | return S_OK;
|
---|
902 |
|
---|
903 | return setError(E_FAIL, tr("Failed to add signature to the database (%Rrc)"), vrc);
|
---|
904 | }
|
---|
905 |
|
---|
906 |
|
---|
907 | HRESULT UefiVariableStore::i_uefiVarStoreAddSignatureToDb(PCEFI_GUID pGuid, const char *pszDb, const void *pvData, size_t cbData,
|
---|
908 | const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
909 | {
|
---|
910 | RTVFSFILE hVfsFileSigDb = NIL_RTVFSFILE;
|
---|
911 |
|
---|
912 | HRESULT hrc = i_uefiVarStoreAddVar(pGuid, pszDb,
|
---|
913 | EFI_VAR_HEADER_ATTR_NON_VOLATILE
|
---|
914 | | EFI_VAR_HEADER_ATTR_BOOTSERVICE_ACCESS
|
---|
915 | | EFI_VAR_HEADER_ATTR_RUNTIME_ACCESS
|
---|
916 | | EFI_AUTH_VAR_HEADER_ATTR_TIME_BASED_AUTH_WRITE_ACCESS,
|
---|
917 | &hVfsFileSigDb);
|
---|
918 | if (SUCCEEDED(hrc))
|
---|
919 | {
|
---|
920 | RTEFISIGDB hEfiSigDb;
|
---|
921 |
|
---|
922 | int vrc = RTEfiSigDbCreate(&hEfiSigDb);
|
---|
923 | if (RT_SUCCESS(vrc))
|
---|
924 | {
|
---|
925 | vrc = RTEfiSigDbAddFromExistingDb(hEfiSigDb, hVfsFileSigDb);
|
---|
926 | if (RT_SUCCESS(vrc))
|
---|
927 | {
|
---|
928 | hrc = i_uefiSigDbAddSig(hEfiSigDb, pvData, cbData, aOwnerUuid, enmSignatureType);
|
---|
929 | if (SUCCEEDED(hrc))
|
---|
930 | {
|
---|
931 | vrc = RTVfsFileSeek(hVfsFileSigDb, 0 /*offSeek*/, RTFILE_SEEK_BEGIN, NULL /*poffActual*/);
|
---|
932 | AssertRC(vrc);
|
---|
933 |
|
---|
934 | vrc = RTEfiSigDbWriteToFile(hEfiSigDb, hVfsFileSigDb);
|
---|
935 | if (RT_FAILURE(vrc))
|
---|
936 | hrc = setError(E_FAIL, tr("Writing updated signature database failed: %Rrc"), vrc);
|
---|
937 | }
|
---|
938 | }
|
---|
939 | else
|
---|
940 | hrc = setError(E_FAIL, tr("Loading signature database failed: %Rrc"), vrc);
|
---|
941 |
|
---|
942 | RTEfiSigDbDestroy(hEfiSigDb);
|
---|
943 | }
|
---|
944 | else
|
---|
945 | hrc = setError(E_FAIL, tr("Creating signature database failed: %Rrc"), vrc);
|
---|
946 |
|
---|
947 | RTVfsFileRelease(hVfsFileSigDb);
|
---|
948 | }
|
---|
949 |
|
---|
950 | return hrc;
|
---|
951 | }
|
---|
952 |
|
---|
953 |
|
---|
954 | HRESULT UefiVariableStore::i_uefiVarStoreAddSignatureToDbVec(PCEFI_GUID pGuid, const char *pszDb, const std::vector<BYTE> &aData,
|
---|
955 | const com::Guid &aOwnerUuid, SignatureType_T enmSignatureType)
|
---|
956 | {
|
---|
957 | return i_uefiVarStoreAddSignatureToDb(pGuid, pszDb, &aData.front(), aData.size(), aOwnerUuid, enmSignatureType);
|
---|
958 | }
|
---|
959 |
|
---|
960 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
|
---|