diff options
Diffstat (limited to 'src/VBox/Main/include/CryptoUtils.h')
| -rw-r--r-- | src/VBox/Main/include/CryptoUtils.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/VBox/Main/include/CryptoUtils.h b/src/VBox/Main/include/CryptoUtils.h new file mode 100644 index 00000000..7db74b96 --- /dev/null +++ b/src/VBox/Main/include/CryptoUtils.h @@ -0,0 +1,141 @@ +/* $Id: CryptoUtils.h $ */ +/** @file + * Main - Cryptographic utility functions used by both VBoxSVC and VBoxC. + */ + +/* + * Copyright (C) 2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + +#ifndef MAIN_INCLUDED_CryptoUtils_h +#define MAIN_INCLUDED_CryptoUtils_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <iprt/cdefs.h> +#include <iprt/types.h> +#include <iprt/vfs.h> + +#include <VBox/VBoxCryptoIf.h> +#include <VBox/com/string.h> + +#include <VBox/vmm/ssm.h> +#include <VBox/vmm/vmmr3vtable.h> +#include <VBox/vmm/vmapi.h> + +#include "SecretKeyStore.h" +#ifdef VBOX_COM_INPROC +# include "ConsoleImpl.h" +#else +# include "MachineImpl.h" +# include "VirtualBoxImpl.h" +#endif + + +/** + * Class handling encrypted and non encrypted SSM files. + */ +class SsmStream +{ + public: +#ifdef VBOX_COM_INPROC + SsmStream(Console *pParent, PCVMMR3VTABLE pVMM, SecretKeyStore *pKeyStore, const Utf8Str &strKeyId, const Utf8Str &strKeyStore); +#else + SsmStream(VirtualBox *pParent, SecretKeyStore *pKeyStore, const Utf8Str &strKeyId, const Utf8Str &strKeyStore); +#endif + ~SsmStream(); + + /** + * Actually opens the stream for either reading or writing. + * + * @returns VBox status code. + * @param strFilename The filename of the saved state to open or create. + * @param fWrite Flag whether the stream should be opened for writing (true) or readonly (false). + * @param ppSsmHandle Where to store the SSM handle on success, don't call SSMR3Close() but the provided close() method. + */ + int open(const Utf8Str &strFilename, bool fWrite, PSSMHANDLE *ppSsmHandle); + + /** + * Opens the saved state file for reading, doesn't call SSMR3Open(). + * + * @returns VBox status code. + * @param strFilename The filename of the saved state to open. + */ + int open(const Utf8Str &strFilename); + + /** + * Creates a new saved state file under the given path. + * + * @returns VBox status code. + * @param strFilename The filename of the saved state to create. + */ + int create(const Utf8Str &strFilename); + + /** + * Returns the pointer to the stream operations table after a succesful opening/creation. + * + * @return VBox status code. + * @param ppStrmOps Where to store the pointer to the stream operations table on success. + * @param ppvStrmOpsUser Where to store the pointer to the opaque user data on success. + */ + int querySsmStrmOps(PCSSMSTRMOPS *ppStrmOps, void **ppvStrmOpsUser); + + /** + * Closes an previously opened stream. + * + * @returns VBox status code. + */ + int close(void); + + private: + + static DECLCALLBACK(int) i_ssmCryptoWrite(void *pvUser, uint64_t offStream, const void *pvBuf, size_t cbToWrite); + static DECLCALLBACK(int) i_ssmCryptoRead(void *pvUser, uint64_t offStream, void *pvBuf, size_t cbToRead, size_t *pcbRead); + static DECLCALLBACK(int) i_ssmCryptoSeek(void *pvUser, int64_t offSeek, unsigned uMethod, uint64_t *poffActual); + static DECLCALLBACK(uint64_t) i_ssmCryptoTell(void *pvUser); + static DECLCALLBACK(int) i_ssmCryptoSize(void *pvUser, uint64_t *pcb); + static DECLCALLBACK(int) i_ssmCryptoIsOk(void *pvUser); + static DECLCALLBACK(int) i_ssmCryptoClose(void *pvUser, bool fCancelled); + +#ifdef VBOX_COM_INPROC + Console *m_pParent; + PCVMMR3VTABLE m_pVMM; +#else + VirtualBox *m_pParent; +#endif + /** The key store for getting at passwords. */ + SecretKeyStore *m_pKeyStore; + /** The key ID holding the password, empty if the saved state is not encrypted. */ + Utf8Str m_strKeyId; + /** The keystore holding the encrypted DEK. */ + Utf8Str m_strKeyStore; + /** The VFS file handle. */ + RTVFSFILE m_hVfsFile; + /** The SSM handle when opened. */ + PSSMHANDLE m_pSsm; + /** The SSM stream callbacks table. */ + SSMSTRMOPS m_StrmOps; + /** The cryptographic interfacer. */ + PCVBOXCRYPTOIF m_pCryptoIf; +}; + +#endif /* !MAIN_INCLUDED_CryptoUtils_h */ |