common/VBoxService/VBoxServiceAutoMount.cpp

b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/* $Id$ */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** @file
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * VBoxService - Auto-mounting for Shared Folders.
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/*
76110d8ef23142ec3bcab1f50622858bdb55c76dvboxsync * Copyright (C) 2010-2014 Oracle Corporation
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync *
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * available from http://www.virtualbox.org. This file is free software;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * you can redistribute it and/or modify it under the terms of the GNU
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * General Public License (GPL) as published by the Free Software
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/*******************************************************************************
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync*   Header Files                                                               *
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync*******************************************************************************/
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <iprt/assert.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <iprt/dir.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <iprt/mem.h>
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync#include <iprt/path.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <iprt/string.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <iprt/semaphore.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <VBox/VBoxGuestLib.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include "VBoxServiceInternal.h"
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include "VBoxServiceUtils.h"
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <errno.h>
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync#include <grp.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <sys/mount.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#ifdef RT_OS_SOLARIS
28626a5957b49791b505bf66131448a847043763vboxsync# include <sys/mntent.h>
2f827df539da232220444c27f2b207a707a045b0vboxsync# include <sys/mnttab.h>
ae6cc8f82ba26e3940022ea7d26078bec3d2a05fvboxsync# include <sys/vfs.h>
2f827df539da232220444c27f2b207a707a045b0vboxsync#else
2f827df539da232220444c27f2b207a707a045b0vboxsync# include <mntent.h>
2f827df539da232220444c27f2b207a707a045b0vboxsync# include <paths.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#endif
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#include <unistd.h>
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
9b0ba1d4360299b4e6ee23c946feb5a4f16c6d00vboxsyncRT_C_DECLS_BEGIN
9b0ba1d4360299b4e6ee23c946feb5a4f16c6d00vboxsync#include "../../linux/sharedfolders/vbsfmount.h"
9b0ba1d4360299b4e6ee23c946feb5a4f16c6d00vboxsyncRT_C_DECLS_END
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
7cca5a9aeb06913531b982bf772508d09b4c2f0bvboxsync#ifdef RT_OS_SOLARIS
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync# define VBOXSERVICE_AUTOMOUNT_DEFAULT_DIR       "/mnt"
7cca5a9aeb06913531b982bf772508d09b4c2f0bvboxsync#else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync# define VBOXSERVICE_AUTOMOUNT_DEFAULT_DIR       "/media"
7cca5a9aeb06913531b982bf772508d09b4c2f0bvboxsync#endif
7cca5a9aeb06913531b982bf772508d09b4c2f0bvboxsync
2f827df539da232220444c27f2b207a707a045b0vboxsync#ifndef _PATH_MOUNTED
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync #ifdef RT_OS_SOLARIS
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync  #define _PATH_MOUNTED                          "/etc/mnttab"
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync #else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync  #define _PATH_MOUNTED                          "/etc/mtab"
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync #endif
2f827df539da232220444c27f2b207a707a045b0vboxsync#endif
2f827df539da232220444c27f2b207a707a045b0vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/*******************************************************************************
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync*   Global Variables                                                           *
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync*******************************************************************************/
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** The semaphore we're blocking on. */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncstatic RTSEMEVENTMULTI  g_AutoMountEvent = NIL_RTSEMEVENTMULTI;
69485a2b3107976ff92a4f3db3ea862e25544059vboxsync/** The Shared Folders service client ID. */
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsyncstatic uint32_t         g_SharedFoldersSvcClientID = 0;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
1a9a40add2c78bba007e3f5c876859967a8e9edfvboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** @copydoc VBOXSERVICE::pfnInit */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncstatic DECLCALLBACK(int) VBoxServiceAutoMountInit(void)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceVerbose(3, "VBoxServiceAutoMountInit\n");
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    int rc = RTSemEventMultiCreate(&g_AutoMountEvent);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    AssertRCReturn(rc, rc);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    rc = VbglR3SharedFolderConnect(&g_SharedFoldersSvcClientID);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    if (RT_SUCCESS(rc))
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        VBoxServiceVerbose(3, "VBoxServiceAutoMountInit: Service Client ID: %#x\n", g_SharedFoldersSvcClientID);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    }
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    else
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        /* If the service was not found, we disable this service without
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync           causing VBoxService to fail. */
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        if (rc == VERR_HGCM_SERVICE_NOT_FOUND) /* Host service is not available. */
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            VBoxServiceVerbose(0, "VBoxServiceAutoMountInit: Shared Folders service is not available\n");
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            rc = VERR_SERVICE_DISABLED;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        }
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        else
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            VBoxServiceError("Control: Failed to connect to the Shared Folders service! Error: %Rrc\n", rc);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        RTSemEventMultiDestroy(g_AutoMountEvent);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        g_AutoMountEvent = NIL_RTSEMEVENTMULTI;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    }
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    return rc;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync}
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
7f9e93577d96c7f2a6977229c1baab57d5ec94e4vboxsync/** @todo Integrate into RTFsQueryMountpoint().  */
2f827df539da232220444c27f2b207a707a045b0vboxsyncstatic bool VBoxServiceAutoMountShareIsMounted(const char *pszShare,
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                                               char *pszMountPoint, size_t cbMountPoint)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pszShare, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pszMountPoint, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertReturn(cbMountPoint, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    bool fMounted = false;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    /* @todo What to do if we have a relative path in mtab instead
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync     *       of an absolute one ("temp" vs. "/media/temp")?
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync     * procfs contains the full path but not the actual share name ...
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync     * FILE *pFh = setmntent("/proc/mounts", "r+t"); */
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync#ifdef RT_OS_SOLARIS
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync    FILE *pFh = fopen(_PATH_MOUNTED, "r");
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync    if (!pFh)
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync        VBoxServiceError("VBoxServiceAutoMountShareIsMounted: Could not open mount tab \"%s\"!\n",
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync                         _PATH_MOUNTED);
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync    else
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync    {
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync        mnttab mntTab;
5b0adfbdd9550a026f5d6209743504562f791f97vboxsync        while ((getmntent(pFh, &mntTab)))
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync        {
f2e1f71feb5d4ec79d46defcd71de0763234b1e2vboxsync            if (!RTStrICmp(mntTab.mnt_special, pszShare))
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync            {
f2e1f71feb5d4ec79d46defcd71de0763234b1e2vboxsync                fMounted = RTStrPrintf(pszMountPoint, cbMountPoint, "%s", mntTab.mnt_mountp)
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync                         ? true : false;
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync                break;
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync            }
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync        }
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync        fclose(pFh);
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync    }
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync#else
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    FILE *pFh = setmntent(_PATH_MOUNTED, "r+t");
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    if (pFh == NULL)
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync        VBoxServiceError("VBoxServiceAutoMountShareIsMounted: Could not open mount tab \"%s\"!\n",
581bb0c43dececce2fbba05cfb77d9a59c88a078vboxsync                         _PATH_MOUNTED);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    else
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        mntent *pMntEnt;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        while ((pMntEnt = getmntent(pFh)))
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync            if (!RTStrICmp(pMntEnt->mnt_fsname, pszShare))
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync            {
2f827df539da232220444c27f2b207a707a045b0vboxsync                fMounted = RTStrPrintf(pszMountPoint, cbMountPoint, "%s", pMntEnt->mnt_dir)
2f827df539da232220444c27f2b207a707a045b0vboxsync                         ? true : false;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                break;
2f827df539da232220444c27f2b207a707a045b0vboxsync            }
2f827df539da232220444c27f2b207a707a045b0vboxsync        }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        endmntent(pFh);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    }
2cb52dd865592ea8e27b588beb22898d189646b1vboxsync#endif
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync    VBoxServiceVerbose(4, "VBoxServiceAutoMountShareIsMounted: Share \"%s\" at mount point \"%s\" = %s\n",
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                       pszShare, fMounted ? pszMountPoint : "<None>", fMounted ? "Yes" : "No");
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    return fMounted;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync}
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsyncstatic int VBoxServiceAutoMountUnmount(const char *pszMountPoint)
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync{
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pszMountPoint, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    int rc = VINF_SUCCESS;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    uint8_t uTries = 0;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    int r;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    while (uTries++ < 3)
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        r = umount(pszMountPoint);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        if (r == 0)
2f827df539da232220444c27f2b207a707a045b0vboxsync            break;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        RTThreadSleep(5000); /* Wait a while ... */
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    if (r == -1)
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        rc = RTErrConvertFromErrno(errno);
2f827df539da232220444c27f2b207a707a045b0vboxsync    return rc;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync}
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsyncstatic int VBoxServiceAutoMountPrepareMountPoint(const char *pszMountPoint, const char *pszShareName,
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                                                 vbsf_mount_opts *pOpts)
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync{
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pOpts, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pszMountPoint, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    AssertPtrReturn(pszShareName, VERR_INVALID_PARAMETER);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    RTFMODE fMode = RTFS_UNIX_IRWXU | RTFS_UNIX_IRWXG; /* Owner (=root) and the group (=vboxsf) have full access. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync    int rc = RTDirCreateFullPath(pszMountPoint, fMode);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync    if (RT_SUCCESS(rc))
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    {
523f2a6676210ab8601d3fdb2fdabe7dcdea7d4cvboxsync        rc = RTPathSetOwnerEx(pszMountPoint, NIL_RTUID /* Owner, unchanged */, pOpts->gid, RTPATH_F_ON_LINK);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        if (RT_SUCCESS(rc))
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            rc = RTPathSetMode(pszMountPoint, fMode);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            if (RT_FAILURE(rc))
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync            {
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                if (rc == VERR_WRITE_PROTECT)
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                    VBoxServiceVerbose(3, "VBoxServiceAutoMountPrepareMountPoint: Mount directory \"%s\" already is used/mounted\n", pszMountPoint);
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                    rc = VINF_SUCCESS;
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                }
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                else
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                    VBoxServiceError("VBoxServiceAutoMountPrepareMountPoint: Could not set mode %RTfmode for mount directory \"%s\", rc = %Rrc\n",
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync                                     fMode, pszMountPoint, rc);
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync            }
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        }
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        else
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            VBoxServiceError("VBoxServiceAutoMountPrepareMountPoint: Could not set permissions for mount directory \"%s\", rc = %Rrc\n",
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                             pszMountPoint, rc);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    else
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        VBoxServiceError("VBoxServiceAutoMountPrepareMountPoint: Could not create mount directory \"%s\" with mode %RTfmode, rc = %Rrc\n",
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                         pszMountPoint, fMode, rc);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync    return rc;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync}
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsyncstatic int VBoxServiceAutoMountSharedFolder(const char *pszShareName, const char *pszMountPoint,
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                                            vbsf_mount_opts *pOpts)
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync{
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync    AssertPtr(pOpts);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
515bedd29819574258817b27cd304587d407810fvboxsync    int rc = VINF_SUCCESS;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    char szAlreadyMountedTo[RTPATH_MAX];
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync    bool fSkip = false;
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync    /* Already mounted? */
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync    if (VBoxServiceAutoMountShareIsMounted(pszShareName, szAlreadyMountedTo, sizeof(szAlreadyMountedTo)))
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    {
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        fSkip = true;
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        /* Do if it not mounted to our desired mount point */
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        if (RTStrICmp(pszMountPoint, szAlreadyMountedTo))
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        {
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync            VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Shared folder \"%s\" already mounted to \"%s\", unmounting ...\n",
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync                               pszShareName, szAlreadyMountedTo);
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync            rc = VBoxServiceAutoMountUnmount(szAlreadyMountedTo);
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync            if (RT_FAILURE(rc))
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync                VBoxServiceError("VBoxServiceAutoMountWorker: Failed to unmount \"%s\", %s (%d)!\n",
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync                                 szAlreadyMountedTo, strerror(errno), errno);
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync            else
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync                fSkip = false;
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        }
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync        if (fSkip)
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync            VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Shared folder \"%s\" already mounted to \"%s\", skipping\n",
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync                               pszShareName, szAlreadyMountedTo);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync    if (!fSkip && RT_SUCCESS(rc))
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        rc = VBoxServiceAutoMountPrepareMountPoint(pszMountPoint, pszShareName, pOpts);
f5d67cb858e3b0b324de00cfbefb0e267238b78bvboxsync    if (!fSkip && RT_SUCCESS(rc))
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync#ifdef RT_OS_SOLARIS
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync        char achOptBuf[MAX_MNTOPT_STR] = { '\0', };
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync        int flags = 0;
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync        if (pOpts->ronly)
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync            flags |= MS_RDONLY;
d857e2bd9418f4d7588db888e622f5df5c5d9eabvboxsync        RTStrPrintf(achOptBuf, sizeof(achOptBuf), "uid=%d,gid=%d,dmode=%0o,fmode=%0o,dmask=%0o,fmask=%0o",
d857e2bd9418f4d7588db888e622f5df5c5d9eabvboxsync                    pOpts->uid, pOpts->gid, pOpts->dmode, pOpts->fmode, pOpts->dmask, pOpts->fmask);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        int r = mount(pszShareName,
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      pszMountPoint,
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync                      flags | MS_OPTIONSTR,
c90d31f80888da118a5d230aabab08ad5c23c00dvboxsync                      "vboxfs",
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      NULL,                     /* char *dataptr */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      0,                        /* int datalen */
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync                      achOptBuf,
3adea7c30ebc76f2e5975ad9052a40c174f588f3vboxsync                      sizeof(achOptBuf));
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        if (r == 0)
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            VBoxServiceVerbose(0, "VBoxServiceAutoMountWorker: Shared folder \"%s\" was mounted to \"%s\"\n", pszShareName, pszMountPoint);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        }
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        else
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            if (errno != EBUSY) /* Share is already mounted? Then skip error msg. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                VBoxServiceError("VBoxServiceAutoMountWorker: Could not mount shared folder \"%s\" to \"%s\", error = %s\n",
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                                 pszShareName, pszMountPoint, strerror(errno));
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#else /* !RT_OS_SOLARIS */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        unsigned long flags = MS_NODEV;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        const char *szOptions = { "rw" };
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        struct vbsf_mount_info_new mntinf;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.nullchar     = '\0';
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.signature[0] = VBSF_MOUNT_SIGNATURE_BYTE_0;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.signature[1] = VBSF_MOUNT_SIGNATURE_BYTE_1;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.signature[2] = VBSF_MOUNT_SIGNATURE_BYTE_2;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.length       = sizeof(mntinf);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.uid   = pOpts->uid;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.gid   = pOpts->gid;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.ttl   = pOpts->ttl;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.dmode = pOpts->dmode;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.fmode = pOpts->fmode;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.dmask = pOpts->dmask;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        mntinf.fmask = pOpts->fmask;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        strcpy(mntinf.name, pszShareName);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        strcpy(mntinf.nls_name, "\0");
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        int r = mount(NULL,
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      pszMountPoint,
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      "vboxsf",
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      flags,
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                      &mntinf);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync        if (r == 0)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            VBoxServiceVerbose(0, "VBoxServiceAutoMountWorker: Shared folder \"%s\" was mounted to \"%s\"\n", pszShareName, pszMountPoint);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            r = vbsfmount_complete(pszShareName, pszMountPoint, flags, pOpts);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            switch (r)
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                case 0: /* Success. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    errno = 0; /* Clear all errors/warnings. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    break;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                case 1:
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    VBoxServiceError("VBoxServiceAutoMountWorker: Could not update mount table (failed to create memstream): %s\n", strerror(errno));
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    break;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                case 2:
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    VBoxServiceError("VBoxServiceAutoMountWorker: Could not open mount table for update: %s\n", strerror(errno));
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    break;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                case 3:
75e8721fd1fe3ee8c1dd3e8404381def8ae5ca53vboxsync                    /* VBoxServiceError("VBoxServiceAutoMountWorker: Could not add an entry to the mount table: %s\n", strerror(errno)); */
75e8721fd1fe3ee8c1dd3e8404381def8ae5ca53vboxsync                    errno = 0;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    break;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                default:
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    VBoxServiceError("VBoxServiceAutoMountWorker: Unknown error while completing mount operation: %d\n", r);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    break;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync        else /* r == -1, we got some error in errno.  */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            if (errno == EPROTO)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync            {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Messed up share name, re-trying ...\n");
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                /* Sometimes the mount utility messes up the share name.  Try to
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                 * un-mangle it again. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                char szCWD[4096];
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                size_t cchCWD;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                if (!getcwd(szCWD, sizeof(szCWD)))
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    VBoxServiceError("VBoxServiceAutoMountWorker: Failed to get the current working directory\n");
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                cchCWD = strlen(szCWD);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                if (!strncmp(pszMountPoint, szCWD, cchCWD))
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                {
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    while (pszMountPoint[cchCWD] == '/')
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                        ++cchCWD;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    /* We checked before that we have enough space */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                    strcpy(mntinf.name, pszMountPoint + cchCWD);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                }
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                r = mount(NULL, pszMountPoint, "vboxsf", flags, &mntinf);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync            }
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            if (errno == EPROTO)
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Re-trying with old mounting structure ...\n");
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                /* New mount tool with old vboxsf module? Try again using the old
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                 * vbsf_mount_info_old structure. */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                struct vbsf_mount_info_old mntinf_old;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                memcpy(&mntinf_old.name, &mntinf.name, MAX_HOST_NAME);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                memcpy(&mntinf_old.nls_name, mntinf.nls_name, MAX_NLS_NAME);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                mntinf_old.uid = mntinf.uid;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                mntinf_old.gid = mntinf.gid;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                mntinf_old.ttl = mntinf.ttl;
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync                r = mount(NULL, pszMountPoint, "vboxsf", flags, &mntinf_old);
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync            }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync            if (r == -1) /* Was there some error from one of the tries above? */
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync            {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                switch (errno)
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                {
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                    /* If we get EINVAL here, the system already has mounted the Shared Folder to another
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                     * mount point. */
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                    case EINVAL:
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        VBoxServiceVerbose(0, "VBoxServiceAutoMountWorker: Shared folder \"%s\" already is mounted!\n", pszShareName);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        /* Ignore this error! */
2f827df539da232220444c27f2b207a707a045b0vboxsync                        break;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                    case EBUSY:
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        /* Ignore these errors! */
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        break;
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                    default:
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        VBoxServiceError("VBoxServiceAutoMountWorker: Could not mount shared folder \"%s\" to \"%s\": %s (%d)\n",
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                                         pszShareName, pszMountPoint, strerror(errno), errno);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        rc = RTErrConvertFromErrno(errno);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync                        break;
2f827df539da232220444c27f2b207a707a045b0vboxsync                }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync            }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync#endif /* !RT_OS_SOLARIS */
f46e7db81f80ea09725c6cc048fa0cad86573dc2vboxsync    }
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Mounting returned with rc=%Rrc\n", rc);
56f538fa476fdbd9cc3d60438083a3f0d5f3ff7fvboxsync    return rc;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync}
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsyncstatic int VBoxServiceAutoMountProcessMappings(PVBGLR3SHAREDFOLDERMAPPING paMappings, uint32_t cMappings,
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                                               const char *pszMountDir, const char *pszSharePrefix, uint32_t uClientID)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync{
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    if (cMappings == 0)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        return VINF_SUCCESS;
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    AssertPtrReturn(paMappings, VERR_INVALID_PARAMETER);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    AssertPtrReturn(pszMountDir, VERR_INVALID_PARAMETER);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    AssertPtrReturn(pszSharePrefix, VERR_INVALID_PARAMETER);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    AssertReturn(uClientID > 0, VERR_INVALID_PARAMETER);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    int rc = VINF_SUCCESS;
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    for (uint32_t i = 0; i < cMappings && RT_SUCCESS(rc); i++)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        char *pszShareName = NULL;
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        rc = VbglR3SharedFolderGetName(uClientID, paMappings[i].u32Root, &pszShareName);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        if (   RT_SUCCESS(rc)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            && *pszShareName)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Connecting share %u (%s) ...\n", i+1, pszShareName);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            char *pszShareNameFull = NULL;
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            if (RTStrAPrintf(&pszShareNameFull, "%s%s", pszSharePrefix, pszShareName) > 0)
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync            {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                char szMountPoint[RTPATH_MAX];
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                rc = RTPathJoin(szMountPoint, sizeof(szMountPoint), pszMountDir, pszShareNameFull);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                if (RT_SUCCESS(rc))
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    VBoxServiceVerbose(4, "VBoxServiceAutoMountWorker: Processing mount point \"%s\"\n", szMountPoint);
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    struct group *grp_vboxsf = getgrnam("vboxsf");
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    if (grp_vboxsf)
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                        struct vbsf_mount_opts mount_opts =
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                        {
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* uid */
0fb42f85d3c82308466ce750f2126a11f56005dfvboxsync                            (int)grp_vboxsf->gr_gid, /* gid */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* ttl */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0770,                  /* dmode, owner and group "vboxsf" have full access */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0770,                  /* fmode, owner and group "vboxsf" have full access */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* dmask */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* fmask */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* ronly */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* noexec */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* nodev */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* nosuid */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            0,                     /* remount */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            "\0",                  /* nls_name */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                            NULL,                  /* convertcp */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                        };
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                        rc = VBoxServiceAutoMountSharedFolder(pszShareName, szMountPoint, &mount_opts);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    }
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                        VBoxServiceError("VBoxServiceAutoMountWorker: Group \"vboxsf\" does not exist\n");
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                }
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                    VBoxServiceError("VBoxServiceAutoMountWorker: Unable to join mount point/prefix/shrae, rc = %Rrc\n", rc);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                RTStrFree(pszShareNameFull);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            }
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                VBoxServiceError("VBoxServiceAutoMountWorker: Unable to allocate full share name\n");
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            RTStrFree(pszShareName);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        }
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync        else
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync            VBoxServiceError("VBoxServiceAutoMountWorker: Error while getting the shared folder name for root node = %u, rc = %Rrc\n",
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                             paMappings[i].u32Root, rc);
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    } /* for cMappings. */
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync    return rc;
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync}
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** @copydoc VBOXSERVICE::pfnWorker */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncDECLCALLBACK(int) VBoxServiceAutoMountWorker(bool volatile *pfShutdown)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /*
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync     * Tell the control thread that it can continue
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync     * spawning services.
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync     */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    RTThreadUserSignal(RTThreadSelf());
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    uint32_t cMappings;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    PVBGLR3SHAREDFOLDERMAPPING paMappings;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    int rc = VbglR3SharedFolderGetMappings(g_SharedFoldersSvcClientID, true /* Only process auto-mounted folders */,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync                                           &paMappings, &cMappings);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    if (   RT_SUCCESS(rc)
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        && cMappings)
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        char *pszMountDir;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        rc = VbglR3SharedFolderGetMountDir(&pszMountDir);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        if (rc == VERR_NOT_FOUND)
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            rc = RTStrDupEx(&pszMountDir, VBOXSERVICE_AUTOMOUNT_DEFAULT_DIR);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        if (RT_SUCCESS(rc))
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Shared folder mount dir set to \"%s\"\n", pszMountDir);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            char *pszSharePrefix;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            rc = VbglR3SharedFolderGetMountPrefix(&pszSharePrefix);
7753dc7a3bcd14c9ec9d969cbc1a0155b0673c06vboxsync            if (RT_SUCCESS(rc))
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync            {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Shared folder mount prefix set to \"%s\"\n", pszSharePrefix);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync#ifdef USE_VIRTUAL_SHARES
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                /* Check for a fixed/virtual auto-mount share. */
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                if (VbglR3SharedFolderExists(g_SharedFoldersSvcClientID, "vbsfAutoMount"))
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync                {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                    VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Host supports auto-mount root\n");
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                }
4bb5cfa1f4d9e95d7d34b5d6ede18d9f4d433bc6vboxsync                else
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync#endif
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                    VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Got %u shared folder mappings\n", cMappings);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                    rc = VBoxServiceAutoMountProcessMappings(paMappings, cMappings, pszMountDir, pszSharePrefix, g_SharedFoldersSvcClientID);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync#ifdef USE_VIRTUAL_SHARES
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                }
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync#endif
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                RTStrFree(pszSharePrefix);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            } /* Mount share prefix. */
7753dc7a3bcd14c9ec9d969cbc1a0155b0673c06vboxsync            else
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync                VBoxServiceError("VBoxServiceAutoMountWorker: Error while getting the shared folder mount prefix, rc = %Rrc\n", rc);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            RTStrFree(pszMountDir);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync        else
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync            VBoxServiceError("VBoxServiceAutoMountWorker: Error while getting the shared folder directory, rc = %Rrc\n", rc);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        VbglR3SharedFolderFreeMappings(paMappings);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    }
0fb42f85d3c82308466ce750f2126a11f56005dfvboxsync    else if (RT_FAILURE(rc))
0fb42f85d3c82308466ce750f2126a11f56005dfvboxsync        VBoxServiceError("VBoxServiceAutoMountWorker: Error while getting the shared folder mappings, rc = %Rrc\n", rc);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    else
0fb42f85d3c82308466ce750f2126a11f56005dfvboxsync        VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: No shared folder mappings found\n");
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync    /*
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * Because this thread is a one-timer at the moment we don't want to break/change
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * the semantics of the main thread's start/stop sub-threads handling.
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     *
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * This thread exits so fast while doing its own startup in VBoxServiceStartServices()
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * that this->fShutdown flag is set to true in VBoxServiceThread() before we have the
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * chance to check for a service failure in VBoxServiceStartServices() to indicate
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * a VBoxService startup error.
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     *
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * Therefore *no* service threads are allowed to quit themselves and need to wait
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     * for the pfShutdown flag to be set by the main thread.
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync     */
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync    for (;;)
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync    {
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync        /* Do we need to shutdown? */
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync        if (*pfShutdown)
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync            break;
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync        /* Let's sleep for a bit and let others run ... */
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync        RTThreadSleep(500);
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync    }
1313e5cbe01a41e7ccb1499d2d73c455a2495955vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    RTSemEventMultiDestroy(g_AutoMountEvent);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    g_AutoMountEvent = NIL_RTSEMEVENTMULTI;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync    VBoxServiceVerbose(3, "VBoxServiceAutoMountWorker: Finished with rc=%Rrc\n", rc);
a2410ed6c0ce63f29ac7132882e4e46d921f239dvboxsync    return VINF_SUCCESS;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync}
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** @copydoc VBOXSERVICE::pfnTerm */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncstatic DECLCALLBACK(void) VBoxServiceAutoMountTerm(void)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceVerbose(3, "VBoxServiceAutoMountTerm\n");
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    VbglR3SharedFolderDisconnect(g_SharedFoldersSvcClientID);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    g_SharedFoldersSvcClientID = 0;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    if (g_AutoMountEvent != NIL_RTSEMEVENTMULTI)
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    {
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        RTSemEventMultiDestroy(g_AutoMountEvent);
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        g_AutoMountEvent = NIL_RTSEMEVENTMULTI;
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    }
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    return;
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync}
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/** @copydoc VBOXSERVICE::pfnStop */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncstatic DECLCALLBACK(void) VBoxServiceAutoMountStop(void)
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    /*
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync     * We need this check because at the moment our auto-mount
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync     * thread really is a one-timer which destroys the event itself
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync     * after running.
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync     */
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync    if (g_AutoMountEvent != NIL_RTSEMEVENTMULTI)
6f045c8e519b0f50a4c2eb2906e5f5e2c4679fa8vboxsync        RTSemEventMultiSignal(g_AutoMountEvent);
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync}
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync/**
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync * The 'automount' service description.
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsyncVBOXSERVICE g_AutoMount =
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync{
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /* pszName. */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    "automount",
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /* pszDescription. */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    "Auto-mount for Shared Folders",
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /* pszUsage. */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    NULL,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /* pszOptions. */
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    NULL,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    /* methods */
1677ee4804e9f56456fd286d1f4b74321a6f48c6vboxsync    VBoxServiceDefaultPreInit,
1677ee4804e9f56456fd286d1f4b74321a6f48c6vboxsync    VBoxServiceDefaultOption,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceAutoMountInit,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceAutoMountWorker,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceAutoMountStop,
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync    VBoxServiceAutoMountTerm
b6517c5cc3b7a38889416706905a3cf2fd010785vboxsync};