Helper.cpp revision dee1ce0545caf22248a054987b958b59e9fe45ae
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * VBoxGINA -- Windows Logon DLL for VirtualBox Helper Functions
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * Copyright (C) 2006-2007 innotek GmbH
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * available from http://www.virtualbox.org. This file is free software;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * you can redistribute it and/or modify it under the terms of the GNU
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * General Public License (GPL) as published by the Free Software
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
0d12c7f9423f2745f8e282523d0930f91bff03b3vboxsync/* the credentials */
590bfe12ce22cd3716448fbb9f4dc51664bfe5e2vboxsync sVBoxDriver = CreateFile(L"\\\\.\\VBoxGuest", /** @todo use define */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::sVBoxDriver: failed to open VBoxGuest driver, last error = %d\n", GetLastError()));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* query the VMMDev whether there are credentials */
044af0d1e6474076366759db86f101778c5f20ccvboxsync vmmdevInitRequest((VMMDevRequestHeader*)&vmmreqCredentials, VMMDevReq_QueryCredentials);
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync vmmreqCredentials.u32Flags |= VMMDEV_CREDENTIALS_QUERYPRESENCE;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync if (!DeviceIoControl(vboxDriver, IOCTL_VBOXGUEST_VMMREQUEST, &vmmreqCredentials, sizeof(vmmreqCredentials),
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync &vmmreqCredentials, sizeof(vmmreqCredentials), &cbReturned, NULL))
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsAvailable: error doing IOCTL, last error: %d\n", GetLastError()));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync bool fAvailable = ((vmmreqCredentials.u32Flags & VMMDEV_CREDENTIALS_PRESENT) != 0);
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsAvailable: fAvailable: %d\n", fAvailable));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* to be safe, reset the credentials */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* query the credentials */
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync vmmdevInitRequest((VMMDevRequestHeader*)&vmmreqCredentials, VMMDevReq_QueryCredentials);
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync vmmreqCredentials.u32Flags |= VMMDEV_CREDENTIALS_READ;
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync vmmreqCredentials.u32Flags |= VMMDEV_CREDENTIALS_CLEAR;
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync if (!DeviceIoControl(vboxDriver, IOCTL_VBOXGUEST_VMMREQUEST, &vmmreqCredentials, sizeof(vmmreqCredentials),
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync &vmmreqCredentials, sizeof(vmmreqCredentials), &cbReturned, NULL))
5b0a093ca572a855886faa6747ad46df859dd041vboxsync Log(("VBoxGINA::credentialsRetrieve: error doing IOCTL, last error: %d\n", GetLastError()));
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync return false;
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync /* convert from UTF-8 to UTF-16 and store in global variables */
c58c758d3642ac45d3f12356c406c631fcd8f538vboxsync if (RT_SUCCESS(RTStrToUtf16(vmmreqCredentials.szUserName, &ptr)) && ptr)
d3dea25ec07f6546715fe3af943ea863294b392evboxsync if (RT_SUCCESS(RTStrToUtf16(vmmreqCredentials.szPassword, &ptr)) && ptr)
d3dea25ec07f6546715fe3af943ea863294b392evboxsync if (RT_SUCCESS(RTStrToUtf16(vmmreqCredentials.szDomain, &ptr)) && ptr)
d3dea25ec07f6546715fe3af943ea863294b392evboxsync Log(("VBoxGINA::credentialsRetrieve: returning user '%s', password '%s', domain '%s'\n",
d3dea25ec07f6546715fe3af943ea863294b392evboxsync vmmreqCredentials.szUserName, vmmreqCredentials.szPassword, vmmreqCredentials.szDomain));
d3dea25ec07f6546715fe3af943ea863294b392evboxsync return true;
d3dea25ec07f6546715fe3af943ea863294b392evboxsync/* handle of the poller thread */
4bf996d915405be92dc4394b2db1395e00e14d58vboxsync * Poller thread. Checks periodically whether there are credentials.
4bf996d915405be92dc4394b2db1395e00e14d58vboxsyncstatic DECLCALLBACK(int) credentialsPoller(RTTHREAD ThreadSelf, void *pvUser)
4bf996d915405be92dc4394b2db1395e00e14d58vboxsync Log(("VBoxGINA::credentialsPoller: got credentials, simulating C-A-D\n"));
4bf996d915405be92dc4394b2db1395e00e14d58vboxsync /* tell WinLogon to start the attestation process */
4bf996d915405be92dc4394b2db1395e00e14d58vboxsync pWlxFuncs->WlxSasNotify(hGinaWlx, WLX_SAS_TYPE_CTRL_ALT_DEL);
5b0a093ca572a855886faa6747ad46df859dd041vboxsync /* time to say goodbye */
5b0a093ca572a855886faa6747ad46df859dd041vboxsync /* wait a bit */
5b0a093ca572a855886faa6747ad46df859dd041vboxsync if (RTThreadUserWait(ThreadSelf, 500) == VINF_SUCCESS)
5b0a093ca572a855886faa6747ad46df859dd041vboxsync Log(("VBoxGINA::credentialsPoller: we were asked to terminate\n"));
5b0a093ca572a855886faa6747ad46df859dd041vboxsync /* we were asked to terminate, do that instantly! */
5b0a093ca572a855886faa6747ad46df859dd041vboxsync /* don't create more than one of them */
5b0a093ca572a855886faa6747ad46df859dd041vboxsync Log(("VBoxGINA::credentialsPollerCreate: thread already running, returning!\n"));
5b0a093ca572a855886faa6747ad46df859dd041vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* create the poller thread */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync int rc = RTThreadCreate(&gThreadPoller, credentialsPoller, NULL, 0, RTTHREADTYPE_INFREQUENT_POLLER,
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerCreate: failed to create thread, rc = %Vrc\n", rc));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return true;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerTerminate: either thread or exit sem is NULL!\n"));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return false;
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* post termination event semaphore */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerTerminate: waiting for thread to terminate\n"));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* wait until the thread has terminated */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync rc = RTThreadWait(gThreadPoller, RT_INDEFINITE_WAIT, NULL);
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerTermiante: thread has (probably) terminated (rc = %Vrc)\n", rc));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* failed to signal the thread - very unlikely - so no point in waiting long. */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerTermiante: failed to signal semaphore, rc = %Vrc\n", rc));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync Log(("VBoxGINA::credentialsPollerTermiante: thread has terminated? wait rc = %Vrc\n", rc));
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync /* now cleanup */
3a4a6501d0ccd629d9951b644d380c7bb2d46086vboxsync return true;