SUPR3HardenedVerify.cpp revision b8908d384db2324f04a2f68a13e67ea32ebf609a
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * VirtualBox Support Library - Verification of Hardened Installation.
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2006-2010 Oracle Corporation
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * available from http://www.virtualbox.org. This file is free software;
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * you can redistribute it and/or modify it under the terms of the GNU
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * General Public License (GPL) as published by the Free Software
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * The contents of this file may alternatively be used under the terms
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * of the Common Development and Distribution License Version 1.0
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * VirtualBox OSE distribution, in which case the provisions of the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * CDDL are applicable instead of those of the GPL.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * You may elect to license modified versions of this file under the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * terms and conditions of either the GPL or the CDDL or both.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/*******************************************************************************
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync* Header Files *
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync*******************************************************************************/
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync#else /* UNIXes */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/*******************************************************************************
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync* Defined Constants And Macros *
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync*******************************************************************************/
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/** The max path length acceptable for a trusted path. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/*******************************************************************************
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync* Global Variables *
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync*******************************************************************************/
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * The files that gets verified.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @todo This needs reviewing against the linux packages.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @todo The excessive use of kSupID_SharedLib needs to be reviewed at some point. For
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * the time being we're building the linux packages with SharedLib pointing to
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * AppPrivArch (lazy bird).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* type, dir, fOpt, "pszFile" */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* ---------------------------------------------------------------------- */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VMMR0.r0" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VBoxDDR0.r0" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VBoxDD2R0.r0" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VMMGC.gc" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VBoxDDGC.gc" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, false, "VBoxDD2GC.gc" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxRT" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxVMM" SUPLIB_DLL_SUFF },
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxREM" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxREM32" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxREM64" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxDD" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxDD2" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxDDU" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_DEBUGGER_GUI
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxDbg" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxDbg3" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_SHARED_CLIPBOARD
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxSharedClipboard" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_SHARED_FOLDERS
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxSharedFolders" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_GUEST_PROPS
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxGuestPropSvc" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_GUEST_CONTROL
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxGuestControlSvc" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxSharedCrOpenGL" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxOGLhostcrutil" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxOGLhosterrorspu" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxOGLrenderspu" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxManage" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, false, "VBoxSVC" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArchComp, false, "VBoxC" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppPrivArch, false, "VBoxXPCOMIPCD" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, false, "VBoxXPCOM" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArchComp, false, "VBoxXPCOMIPCC" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArchComp, false, "VBoxC" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArchComp, false, "VBoxSVCM" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Data, kSupID_AppPrivArchComp, false, "VBoxXPCOMBase.xpt" },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VRDPAuth" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxAuth" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxVRDP" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_HEADLESS
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxHeadless" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxHeadless" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxFFmpegFB" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_QTGUI
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VirtualBox" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VirtualBox" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync# if !defined(RT_OS_DARWIN) && !defined(RT_OS_WINDOWS) && !defined(RT_OS_OS2)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_SharedLib, true, "VBoxKeyboard" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_VBOXSDL
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxSDL" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxSDL" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_VBOXBFE
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxBFE" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxBFE" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_WEBSERVICES
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "vboxwebsrv" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxTunctl" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync//#ifdef VBOX_WITH_NETFLT
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Exe, kSupID_AppBin, true, "VBoxNetDHCP" SUPLIB_EXE_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync { kSupIFT_Dll, kSupID_AppPrivArch, true, "VBoxNetDHCP" SUPLIB_DLL_SUFF },
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/** Array parallel to g_aSupInstallFiles containing per-file status info. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic SUPVERIFIEDFILE g_aSupVerifiedFiles[RT_ELEMENTS(g_aSupInstallFiles)];
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/** Array index by install directory specifier containing info about verified directories. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic SUPVERIFIEDDIR g_aSupVerifiedDirs[kSupID_End];
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Assembles the path to a directory.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success, some error code on failure (fFatal
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * decides whether it returns or not).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param enmDir The directory.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszDst Where to assemble the path.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cchDst The size of the buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether failures should be treated as fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedMakePath(SUPINSTDIR enmDir, char *pszDst, size_t cchDst, bool fFatal)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync case kSupID_AppBin: /** @todo fix this AppBin crap (uncertain wtf some binaries actually are installed). */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedPathAppPrivateArch(pszDst, cchDst);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedPathAppPrivateArch(pszDst, cchDst);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync memcpy(&pszDst[off], "/components", sizeof("/components"));
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedPathAppPrivateNoArch(pszDst, cchDst);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedError(VERR_INTERNAL_ERROR, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedMakePath: enmDir=%d rc=%d\n", enmDir, rc);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Assembles the path to a file table entry, with or without the actual filename.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success, some error code on failure (fFatal
83dc9ca94cd3c31dabc33a35b945de124d43aaeavboxsync * decides whether it returns or not).
fb1975a6972d89de9e515bed0248db93f04ec9d8vboxsync * @param pFile The file table entry.
83dc9ca94cd3c31dabc33a35b945de124d43aaeavboxsync * @param pszDst Where to assemble the path.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cchDst The size of the buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fWithFilename If set, the filename is included, otherwise it is omitted (no trailing slash).
83dc9ca94cd3c31dabc33a35b945de124d43aaeavboxsync * @param fFatal Whether failures should be treated as fatal (true) or not (false).
83dc9ca94cd3c31dabc33a35b945de124d43aaeavboxsyncstatic int supR3HardenedMakeFilePath(PCSUPINSTFILE pFile, char *pszDst, size_t cchDst, bool fWithFilename, bool fFatal)
83dc9ca94cd3c31dabc33a35b945de124d43aaeavboxsync * Combine supR3HardenedMakePath and the filename.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc = supR3HardenedMakePath(pFile->enmDir, pszDst, cchDst, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_BUFFER_OVERFLOW, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedMakeFilePath: pszFile=%s off=%lu\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies a directory.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success. On failure, an error code is returned if
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fFatal is clear and if it's set the function wont return.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param enmDir The directory specifier.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether validation failures should be treated as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncDECLHIDDEN(int) supR3HardenedVerifyFixedDir(SUPINSTDIR enmDir, bool fFatal)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Validate the index just to be on the safe side...
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if (enmDir <= kSupID_Invalid || enmDir >= kSupID_End)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedError(VERR_INTERNAL_ERROR, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Already validated?
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* initialize the entry. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: hDir=%p enmDir=%d\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Make the path and open the directory.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc = supR3HardenedMakePath(enmDir, szPath, sizeof(szPath), fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync FILE_SHARE_READ | FILE_SHARE_DELETE | FILE_SHARE_WRITE,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** @todo check the type */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* That's all on windows, for now at least... */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_PATH_NOT_FOUND, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: Failed to open \"%s\": err=%d\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync#else /* UNIXY */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * On unixy systems we'll make sure the directory is owned by root
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * and not writable by the group and user.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_NOT_A_DIRECTORY, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: \"%s\" is not a directory\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: Cannot trust the directory \"%s\": not owned by root (st_uid=%ld)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: Cannot trust the directory \"%s\": group and/or other writable (st_mode=0%lo)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: Failed to fstat \"%s\": %s (%d)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_PATH_NOT_FOUND, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyDir: Failed to open \"%s\": %s (%d)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync#endif /* UNIXY */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies a file entry.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success. On failure, an error code is returned if
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fFatal is clear and if it's set the function wont return.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param iFile The file table index of the file to be verified.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether validation failures should be treated as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fLeaveFileOpen Whether the file should be left open.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedVerifyFileInternal(int iFile, bool fFatal, bool fLeaveFileOpen)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync PSUPVERIFIEDFILE pVerified = &g_aSupVerifiedFiles[iFile];
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Already done?
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* initialize the entry. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: hFile=%p (%s)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verify the directory then proceed to open it.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * (This'll make sure the directory is opened and that we can (later)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * use openat if we wish.)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc = supR3HardenedVerifyFixedDir(pFile->enmDir, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedMakeFilePath(pFile, szPath, sizeof(szPath), true, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** @todo Check the type, and verify the signature (separate function so we can skip it). */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* it's valid. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if (!pFile->fOptional || err != ERROR_FILE_NOT_FOUND)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_PATH_NOT_FOUND, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: Failed to open \"%s\": err=%d\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync#else /* UNIXY */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * On unixy systems we'll make sure the directory is owned by root
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * and not writable by the group and user.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* it's valid. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_IS_A_DIRECTORY, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: \"%s\" is not a regular file\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: Cannot trust the file \"%s\": not owned by root (st_uid=%ld)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: Cannot trust the file \"%s\": group and/or other writable (st_mode=0%lo)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_ACCESS_DENIED, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: Failed to fstat \"%s\": %s (%d)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_PATH_NOT_FOUND, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyFileInternal: Failed to open \"%s\": %s (%d)\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync#endif /* UNIXY */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies that the specified table entry matches the given filename.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS if matching. On mismatch fFatal indicates whether an
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * error is returned or we terminate the application.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param iFile The file table index.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszFilename The filename.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether validation failures should be treated as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedVerifySameFile(int iFile, const char *pszFilename, bool fFatal)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Construct the full path for the file table entry
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * and compare it with the specified file.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc = supR3HardenedMakeFilePath(pFile, szName, sizeof(szName), true /*fWithFilename*/, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Normalize the two paths and compare again.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if ( GetFullPathName(szName, RT_ELEMENTS(szName2), &szName2[0], &pszIgnored)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync && GetFullPathName(pszFilename, RT_ELEMENTS(szName), &szName[0], &pszIgnored))
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync supR3HardenedMakeFilePath(pFile, szName, sizeof(szName), true /*fWithFilename*/, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifySameFile: \"%s\" isn't the same as \"%s\"\n",
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Check more stuff like the stat info if it's an already open file?
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies a file.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * VERR_NOT_FOUND if the file isn't in the table, this isn't ever a fatal error.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * On verification failure, an error code will be returned when fFatal is clear,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * otherwise the program will be terminated.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszFilename The filename.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether validation failures should be treated as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncDECLHIDDEN(int) supR3HardenedVerifyFixedFile(const char *pszFilename, bool fFatal)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Lookup the file and check if it's the same file.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync const char *pszName = supR3HardenedPathFilename(pszFilename);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync for (unsigned iFile = 0; iFile < RT_ELEMENTS(g_aSupInstallFiles); iFile++)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if (!strcmp(pszName, g_aSupInstallFiles[iFile].pszFile))
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc = supR3HardenedVerifySameFile(iFile, pszFilename, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedVerifyFileInternal(iFile, fFatal, false /* fLeaveFileOpen */);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies a program, worker for supR3HardenedVerifyAll.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns See supR3HardenedVerifyAll.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszProgName See supR3HardenedVerifyAll.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal See supR3HardenedVerifyAll.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedVerifyProgram(const char *pszProgName, bool fFatal)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Search the table looking for the executable and the DLL/DYLIB/SO.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync bool fExe = false;
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync bool fDll = false;
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync for (unsigned iFile = 0; iFile < RT_ELEMENTS(g_aSupInstallFiles); iFile++)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if (!strncmp(pszProgName, g_aSupInstallFiles[iFile].pszFile, cchProgName))
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync if ( g_aSupInstallFiles[iFile].enmType == kSupIFT_Dll
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync && !strcmp(&g_aSupInstallFiles[iFile].pszFile[cchProgName], SUPLIB_DLL_SUFF))
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* This only has to be found (once). */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_INTERNAL_ERROR, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: duplicate DLL entry for \"%s\"\n", pszProgName);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync else if ( g_aSupInstallFiles[iFile].enmType == kSupIFT_Exe
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync && !strcmp(&g_aSupInstallFiles[iFile].pszFile[cchProgName], SUPLIB_EXE_SUFF))
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /* Here we'll have to check that the specific program is the same as the entry. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync rc = supR3HardenedError(VERR_INTERNAL_ERROR, fFatal,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: duplicate EXE entry for \"%s\"\n", pszProgName);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc2 = supR3HardenedPathExecDir(szFilename, sizeof(szFilename) - cchProgName - sizeof(SUPLIB_EXE_SUFF));
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync strcat(szFilename, g_aSupInstallFiles[iFile].pszFile);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync supR3HardenedVerifySameFile(iFile, szFilename, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: failed to query program path: rc=%d\n", rc2);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Check the findings.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: Couldn't find the program \"%s\"\n", pszProgName);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: Couldn't find the EXE entry for \"%s\"\n", pszProgName);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync "supR3HardenedVerifyProgram: Couldn't find the DLL entry for \"%s\"\n", pszProgName);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies all the known files.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VINF_SUCCESS on success.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * On verification failure, an error code will be returned when fFatal is clear,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * otherwise the program will be terminated.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fFatal Whether validation failures should be treated as
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * fatal (true) or not (false).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param fLeaveFilesOpen If set, all the verified files are left open.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszProgName Optional program name. This is used by SUPR3HardenedMain
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * to verify that both the executable and corresponding
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * DLL/DYLIB/SO are valid.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncDECLHIDDEN(int) supR3HardenedVerifyAll(bool fFatal, bool fLeaveFilesOpen, const char *pszProgName)
f313ed48a0cc2d9d12580dc9412291ae15773f02vboxsync * The verify all the files.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync for (unsigned iFile = 0; iFile < RT_ELEMENTS(g_aSupInstallFiles); iFile++)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc2 = supR3HardenedVerifyFileInternal(iFile, fFatal, fLeaveFilesOpen);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verify the program name if specified, that is to say, just check that
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * it's in the table (=> we've already verified it).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync int rc2 = supR3HardenedVerifyProgram(pszProgName, fFatal);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Copies the N messages into the error buffer and returns @a rc.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns Returns @a rc
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param rc The return code.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszErr The error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cbErr The size of the error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cMsgs The number of messages in the ellipsis.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param ... Message parts.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedSetErrorN(int rc, char *pszErr, size_t cbErr, unsigned cMsgs, ...)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync size_t cchMsg = VALID_PTR(pszMsg) ? strlen(pszMsg) : 0;
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Copies the three messages into the error buffer and returns @a rc.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns Returns @a rc
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param rc The return code.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszErr The error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cbErr The size of the error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg1 The first message part.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg2 The second message part.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg3 The third message part.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedSetError3(int rc, char *pszErr, size_t cbErr, const char *pszMsg1,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedSetErrorN(rc, pszErr, cbErr, 3, pszMsg1, pszMsg2, pszMsg3);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Copies the two messages into the error buffer and returns @a rc.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns Returns @a rc
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param rc The return code.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszErr The error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cbErr The size of the error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg1 The first message part.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg2 The second message part.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedSetError2(int rc, char *pszErr, size_t cbErr, const char *pszMsg1,
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync const char *pszMsg2)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedSetErrorN(rc, pszErr, cbErr, 2, pszMsg1, pszMsg2);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Copies the error message to the error buffer and returns @a rc.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns Returns @a rc
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param rc The return code.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszErr The error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cbErr The size of the error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszMsg The message.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedSetError(int rc, char *pszErr, size_t cbErr, const char *pszMsg)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedSetErrorN(rc, pszErr, cbErr, 1, pszMsg);
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Output from a successfull supR3HardenedVerifyPathSanity call.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** The length of the path in szCopy. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** The number of path components. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** Set if the path ends with slash, indicating that it's a directory
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * reference and not a file reference. The slash has been removed from
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * the copy. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** The offset where each path component starts, i.e. the char after the
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * slash. The array has cComponents + 1 entries, where the final one is
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * cch + 1 so that one can always terminate the current component by
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * szPath[aoffComponent[i] - 1] = '\0'. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync /** A normalized copy of the path.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Reserve some extra space so we can be more relaxed about overflow
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * checks and terminator paddings, especially when recursing. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync/** Pointer to a parsed path. */
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsynctypedef SUPR3HARDENEDPATHINFO *PSUPR3HARDENEDPATHINFO;
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Verifies that the path is absolutely sane, it also parses the path.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * A sane path starts at the root (w/ drive letter on DOS derived systems) and
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * does not have any relative bits (/../) or unnecessary slashes (/bin//ls).
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Sane paths are less or equal to SUPR3HARDENED_MAX_PATH bytes in length. UNC
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * paths are not supported.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @returns VBox status code.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszPath The path to check.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pszErr The error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param cbErr The size of the error buffer.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * @param pInfo Where to return a copy of the path along with
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * parsing information.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsyncstatic int supR3HardenedVerifyPathSanity(const char *pszPath, char *pszErr, size_t cbErr, PSUPR3HARDENEDPATHINFO pInfo)
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync * Check that it's an absolute path and copy the volume/root specifier.
1c2c968fd241148110002d75b2c0fdeddc211e14vboxsync return supR3HardenedSetError3(VERR_SUPLIB_PATH_NOT_ABSOLUTE, pszErr, cbErr, "The path is not absolute: '", pszPath, "'");
return supR3HardenedSetError3(VERR_SUPLIB_PATH_NOT_ABSOLUTE, pszErr, cbErr, "The path is not absolute: '", pszPath, "'");
return supR3HardenedSetError3(VERR_SUPLIB_PATH_IS_ROOT, pszErr, cbErr, "The path is root: '", pszPath, "'");
return supR3HardenedSetError3(VERR_SUPLIB_PATH_TOO_SHORT, pszErr, cbErr, "The path is too short: '", pszPath, "'");
while (pszSrc[0])
while (pszSrc[0])
pszSrc++;
if (*pszSrc)
return VINF_SUCCESS;
typedef struct SUPR3HARDENEDFSOBJSTATE
#ifdef RT_OS_WINDOWS
char chTodo;
static int supR3HardenedQueryFsObjectByPath(char const *pszPath, PSUPR3HARDENEDFSOBJSTATE pFsObjState,
#if defined(RT_OS_WINDOWS)
return VINF_SUCCESS;
return VINF_SUCCESS;
static int supR3HardenedQueryFsObjectByHandle(RTHCUINTPTR hNative, PSUPR3HARDENEDFSOBJSTATE pFsObjState,
#if defined(RT_OS_WINDOWS)
return VINF_SUCCESS;
return VINF_SUCCESS;
* @param pFsObjState1 File system object information/state by path.
* @param pFsObjState2 File system object information/state by handle.
static int supR3HardenedIsSameFsObject(PCSUPR3HARDENEDFSOBJSTATE pFsObjState1, PCSUPR3HARDENEDFSOBJSTATE pFsObjState2,
#if defined(RT_OS_WINDOWS)
return VINF_SUCCESS;
return VINF_SUCCESS;
return VINF_SUCCESS;
* @param pFsObjState The file system object information/state to be
static int supR3HardenedVerifyFsObject(PCSUPR3HARDENEDFSOBJSTATE pFsObjState, bool fDir, bool fRelaxed,
#if defined(RT_OS_WINDOWS)
return VINF_SUCCESS;
return VINF_SUCCESS;
return supR3HardenedSetError3(VERR_SUPLIB_OWNER_NOT_ROOT, pszErr, cbErr, "The owner is not root: '", pszPath, "'");
#ifdef RT_OS_DARWIN
return VINF_SUCCESS;
* @param pFsObjState The information/state returned by a previous
static int supR3HardenedVerifySameFsObject(RTHCUINTPTR hNative, PCSUPR3HARDENEDFSOBJSTATE pFsObjState,
return rc;
static int supR3HardenedVerifyDirRecursive(char *pszDirPath, size_t cchDirPath, PSUPR3HARDENEDFSOBJSTATE pFsObjState,
#if defined(RT_OS_WINDOWS)
return VINF_SUCCESS;
return VINF_SUCCESS;
if (!pDir)
return VINF_SUCCESS;
return rc;
if (iErr)
if (!pEntry)
rc = supR3HardenedVerifyFsObject(pFsObjState, S_ISDIR(pFsObjState->Stat.st_mode), false /*fRelaxed*/,
if ( fRecursive
return VINF_SUCCESS;
DECLHIDDEN(int) supR3HardenedVerifyDir(const char *pszDirPath, bool fRecursive, bool fCheckFiles, char *pszErr, size_t cbErr)
return rc;
return rc;
Info.szPath[Info.aoffComponents[iComponent + 1] - 1] = iComponent + 1 != cComponents ? RTPATH_SLASH : '\0';
return VINF_SUCCESS;
DECLHIDDEN(int) supR3HardenedVerifyFile(const char *pszFilename, RTHCUINTPTR hNativeFile, char *pszErr, size_t cbErr)
return rc;
rc = supR3HardenedVerifyFsObject(&FsObjState, !fFinal /*fDir*/, fRelaxed, Info.szPath, pszErr, cbErr);
return rc;
return VINF_SUCCESS;
return VERR_VERSION_MISMATCH;
return VERR_VERSION_MISMATCH;
return VERR_WRONG_ORDER;
return VINF_SUCCESS;