qemu/qga/commands-win32.c
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   1/*
   2 * QEMU Guest Agent win32-specific command implementations
   3 *
   4 * Copyright IBM Corp. 2012
   5 *
   6 * Authors:
   7 *  Michael Roth      <mdroth@linux.vnet.ibm.com>
   8 *  Gal Hammer        <ghammer@redhat.com>
   9 *
  10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  11 * See the COPYING file in the top-level directory.
  12 */
  13
  14#include "qemu/osdep.h"
  15#include <glib.h>
  16#include <wtypes.h>
  17#include <powrprof.h>
  18#include <winsock2.h>
  19#include <ws2tcpip.h>
  20#include <iptypes.h>
  21#include <iphlpapi.h>
  22#ifdef CONFIG_QGA_NTDDSCSI
  23#include <winioctl.h>
  24#include <ntddscsi.h>
  25#include <setupapi.h>
  26#include <initguid.h>
  27#endif
  28#include <lm.h>
  29
  30#include "qga/guest-agent-core.h"
  31#include "qga/vss-win32.h"
  32#include "qga-qmp-commands.h"
  33#include "qapi/qmp/qerror.h"
  34#include "qemu/queue.h"
  35#include "qemu/host-utils.h"
  36#include "qemu/base64.h"
  37
  38#ifndef SHTDN_REASON_FLAG_PLANNED
  39#define SHTDN_REASON_FLAG_PLANNED 0x80000000
  40#endif
  41
  42/* multiple of 100 nanoseconds elapsed between windows baseline
  43 *    (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
  44#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
  45                       (365 * (1970 - 1601) +       \
  46                        (1970 - 1601) / 4 - 3))
  47
  48#define INVALID_SET_FILE_POINTER ((DWORD)-1)
  49
  50typedef struct GuestFileHandle {
  51    int64_t id;
  52    HANDLE fh;
  53    QTAILQ_ENTRY(GuestFileHandle) next;
  54} GuestFileHandle;
  55
  56static struct {
  57    QTAILQ_HEAD(, GuestFileHandle) filehandles;
  58} guest_file_state = {
  59    .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
  60};
  61
  62#define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
  63
  64typedef struct OpenFlags {
  65    const char *forms;
  66    DWORD desired_access;
  67    DWORD creation_disposition;
  68} OpenFlags;
  69static OpenFlags guest_file_open_modes[] = {
  70    {"r",   GENERIC_READ,                     OPEN_EXISTING},
  71    {"rb",  GENERIC_READ,                     OPEN_EXISTING},
  72    {"w",   GENERIC_WRITE,                    CREATE_ALWAYS},
  73    {"wb",  GENERIC_WRITE,                    CREATE_ALWAYS},
  74    {"a",   FILE_GENERIC_APPEND,              OPEN_ALWAYS  },
  75    {"r+",  GENERIC_WRITE|GENERIC_READ,       OPEN_EXISTING},
  76    {"rb+", GENERIC_WRITE|GENERIC_READ,       OPEN_EXISTING},
  77    {"r+b", GENERIC_WRITE|GENERIC_READ,       OPEN_EXISTING},
  78    {"w+",  GENERIC_WRITE|GENERIC_READ,       CREATE_ALWAYS},
  79    {"wb+", GENERIC_WRITE|GENERIC_READ,       CREATE_ALWAYS},
  80    {"w+b", GENERIC_WRITE|GENERIC_READ,       CREATE_ALWAYS},
  81    {"a+",  FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS  },
  82    {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS  },
  83    {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS  }
  84};
  85
  86static OpenFlags *find_open_flag(const char *mode_str)
  87{
  88    int mode;
  89    Error **errp = NULL;
  90
  91    for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
  92        OpenFlags *flags = guest_file_open_modes + mode;
  93
  94        if (strcmp(flags->forms, mode_str) == 0) {
  95            return flags;
  96        }
  97    }
  98
  99    error_setg(errp, "invalid file open mode '%s'", mode_str);
 100    return NULL;
 101}
 102
 103static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
 104{
 105    GuestFileHandle *gfh;
 106    int64_t handle;
 107
 108    handle = ga_get_fd_handle(ga_state, errp);
 109    if (handle < 0) {
 110        return -1;
 111    }
 112    gfh = g_new0(GuestFileHandle, 1);
 113    gfh->id = handle;
 114    gfh->fh = fh;
 115    QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
 116
 117    return handle;
 118}
 119
 120static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
 121{
 122    GuestFileHandle *gfh;
 123    QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
 124        if (gfh->id == id) {
 125            return gfh;
 126        }
 127    }
 128    error_setg(errp, "handle '%" PRId64 "' has not been found", id);
 129    return NULL;
 130}
 131
 132static void handle_set_nonblocking(HANDLE fh)
 133{
 134    DWORD file_type, pipe_state;
 135    file_type = GetFileType(fh);
 136    if (file_type != FILE_TYPE_PIPE) {
 137        return;
 138    }
 139    /* If file_type == FILE_TYPE_PIPE, according to MSDN
 140     * the specified file is socket or named pipe */
 141    if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
 142                                 NULL, NULL, NULL, 0)) {
 143        return;
 144    }
 145    /* The fd is named pipe fd */
 146    if (pipe_state & PIPE_NOWAIT) {
 147        return;
 148    }
 149
 150    pipe_state |= PIPE_NOWAIT;
 151    SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
 152}
 153
 154int64_t qmp_guest_file_open(const char *path, bool has_mode,
 155                            const char *mode, Error **errp)
 156{
 157    int64_t fd;
 158    HANDLE fh;
 159    HANDLE templ_file = NULL;
 160    DWORD share_mode = FILE_SHARE_READ;
 161    DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
 162    LPSECURITY_ATTRIBUTES sa_attr = NULL;
 163    OpenFlags *guest_flags;
 164
 165    if (!has_mode) {
 166        mode = "r";
 167    }
 168    slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
 169    guest_flags = find_open_flag(mode);
 170    if (guest_flags == NULL) {
 171        error_setg(errp, "invalid file open mode");
 172        return -1;
 173    }
 174
 175    fh = CreateFile(path, guest_flags->desired_access, share_mode, sa_attr,
 176                    guest_flags->creation_disposition, flags_and_attr,
 177                    templ_file);
 178    if (fh == INVALID_HANDLE_VALUE) {
 179        error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
 180                         path);
 181        return -1;
 182    }
 183
 184    /* set fd non-blocking to avoid common use cases (like reading from a
 185     * named pipe) from hanging the agent
 186     */
 187    handle_set_nonblocking(fh);
 188
 189    fd = guest_file_handle_add(fh, errp);
 190    if (fd < 0) {
 191        CloseHandle(fh);
 192        error_setg(errp, "failed to add handle to qmp handle table");
 193        return -1;
 194    }
 195
 196    slog("guest-file-open, handle: % " PRId64, fd);
 197    return fd;
 198}
 199
 200void qmp_guest_file_close(int64_t handle, Error **errp)
 201{
 202    bool ret;
 203    GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 204    slog("guest-file-close called, handle: %" PRId64, handle);
 205    if (gfh == NULL) {
 206        return;
 207    }
 208    ret = CloseHandle(gfh->fh);
 209    if (!ret) {
 210        error_setg_win32(errp, GetLastError(), "failed close handle");
 211        return;
 212    }
 213
 214    QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
 215    g_free(gfh);
 216}
 217
 218static void acquire_privilege(const char *name, Error **errp)
 219{
 220    HANDLE token = NULL;
 221    TOKEN_PRIVILEGES priv;
 222    Error *local_err = NULL;
 223
 224    if (OpenProcessToken(GetCurrentProcess(),
 225        TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
 226    {
 227        if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
 228            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 229                       "no luid for requested privilege");
 230            goto out;
 231        }
 232
 233        priv.PrivilegeCount = 1;
 234        priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 235
 236        if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
 237            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 238                       "unable to acquire requested privilege");
 239            goto out;
 240        }
 241
 242    } else {
 243        error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 244                   "failed to open privilege token");
 245    }
 246
 247out:
 248    if (token) {
 249        CloseHandle(token);
 250    }
 251    if (local_err) {
 252        error_propagate(errp, local_err);
 253    }
 254}
 255
 256static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
 257                          Error **errp)
 258{
 259    Error *local_err = NULL;
 260
 261    HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
 262    if (!thread) {
 263        error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 264                   "failed to dispatch asynchronous command");
 265        error_propagate(errp, local_err);
 266    }
 267}
 268
 269void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
 270{
 271    Error *local_err = NULL;
 272    UINT shutdown_flag = EWX_FORCE;
 273
 274    slog("guest-shutdown called, mode: %s", mode);
 275
 276    if (!has_mode || strcmp(mode, "powerdown") == 0) {
 277        shutdown_flag |= EWX_POWEROFF;
 278    } else if (strcmp(mode, "halt") == 0) {
 279        shutdown_flag |= EWX_SHUTDOWN;
 280    } else if (strcmp(mode, "reboot") == 0) {
 281        shutdown_flag |= EWX_REBOOT;
 282    } else {
 283        error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
 284                   "halt|powerdown|reboot");
 285        return;
 286    }
 287
 288    /* Request a shutdown privilege, but try to shut down the system
 289       anyway. */
 290    acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 291    if (local_err) {
 292        error_propagate(errp, local_err);
 293        return;
 294    }
 295
 296    if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
 297        slog("guest-shutdown failed: %lu", GetLastError());
 298        error_setg(errp, QERR_UNDEFINED_ERROR);
 299    }
 300}
 301
 302GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
 303                                   int64_t count, Error **errp)
 304{
 305    GuestFileRead *read_data = NULL;
 306    guchar *buf;
 307    HANDLE fh;
 308    bool is_ok;
 309    DWORD read_count;
 310    GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 311
 312    if (!gfh) {
 313        return NULL;
 314    }
 315    if (!has_count) {
 316        count = QGA_READ_COUNT_DEFAULT;
 317    } else if (count < 0) {
 318        error_setg(errp, "value '%" PRId64
 319                   "' is invalid for argument count", count);
 320        return NULL;
 321    }
 322
 323    fh = gfh->fh;
 324    buf = g_malloc0(count+1);
 325    is_ok = ReadFile(fh, buf, count, &read_count, NULL);
 326    if (!is_ok) {
 327        error_setg_win32(errp, GetLastError(), "failed to read file");
 328        slog("guest-file-read failed, handle %" PRId64, handle);
 329    } else {
 330        buf[read_count] = 0;
 331        read_data = g_new0(GuestFileRead, 1);
 332        read_data->count = (size_t)read_count;
 333        read_data->eof = read_count == 0;
 334
 335        if (read_count != 0) {
 336            read_data->buf_b64 = g_base64_encode(buf, read_count);
 337        }
 338    }
 339    g_free(buf);
 340
 341    return read_data;
 342}
 343
 344GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
 345                                     bool has_count, int64_t count,
 346                                     Error **errp)
 347{
 348    GuestFileWrite *write_data = NULL;
 349    guchar *buf;
 350    gsize buf_len;
 351    bool is_ok;
 352    DWORD write_count;
 353    GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 354    HANDLE fh;
 355
 356    if (!gfh) {
 357        return NULL;
 358    }
 359    fh = gfh->fh;
 360    buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
 361    if (!buf) {
 362        return NULL;
 363    }
 364
 365    if (!has_count) {
 366        count = buf_len;
 367    } else if (count < 0 || count > buf_len) {
 368        error_setg(errp, "value '%" PRId64
 369                   "' is invalid for argument count", count);
 370        goto done;
 371    }
 372
 373    is_ok = WriteFile(fh, buf, count, &write_count, NULL);
 374    if (!is_ok) {
 375        error_setg_win32(errp, GetLastError(), "failed to write to file");
 376        slog("guest-file-write-failed, handle: %" PRId64, handle);
 377    } else {
 378        write_data = g_new0(GuestFileWrite, 1);
 379        write_data->count = (size_t) write_count;
 380    }
 381
 382done:
 383    g_free(buf);
 384    return write_data;
 385}
 386
 387GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
 388                                   GuestFileWhence *whence_code,
 389                                   Error **errp)
 390{
 391    GuestFileHandle *gfh;
 392    GuestFileSeek *seek_data;
 393    HANDLE fh;
 394    LARGE_INTEGER new_pos, off_pos;
 395    off_pos.QuadPart = offset;
 396    BOOL res;
 397    int whence;
 398    Error *err = NULL;
 399
 400    gfh = guest_file_handle_find(handle, errp);
 401    if (!gfh) {
 402        return NULL;
 403    }
 404
 405    /* We stupidly exposed 'whence':'int' in our qapi */
 406    whence = ga_parse_whence(whence_code, &err);
 407    if (err) {
 408        error_propagate(errp, err);
 409        return NULL;
 410    }
 411
 412    fh = gfh->fh;
 413    res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
 414    if (!res) {
 415        error_setg_win32(errp, GetLastError(), "failed to seek file");
 416        return NULL;
 417    }
 418    seek_data = g_new0(GuestFileSeek, 1);
 419    seek_data->position = new_pos.QuadPart;
 420    return seek_data;
 421}
 422
 423void qmp_guest_file_flush(int64_t handle, Error **errp)
 424{
 425    HANDLE fh;
 426    GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 427    if (!gfh) {
 428        return;
 429    }
 430
 431    fh = gfh->fh;
 432    if (!FlushFileBuffers(fh)) {
 433        error_setg_win32(errp, GetLastError(), "failed to flush file");
 434    }
 435}
 436
 437#ifdef CONFIG_QGA_NTDDSCSI
 438
 439static STORAGE_BUS_TYPE win2qemu[] = {
 440    [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 441    [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
 442    [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
 443    [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
 444    [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
 445    [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
 446    [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
 447    [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
 448    [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
 449#if (_WIN32_WINNT >= 0x0600)
 450    [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
 451    [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
 452    [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
 453    [BusTypeSd] =  GUEST_DISK_BUS_TYPE_SD,
 454    [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
 455#endif
 456#if (_WIN32_WINNT >= 0x0601)
 457    [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
 458    [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
 459#endif
 460};
 461
 462static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
 463{
 464    if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) {
 465        return GUEST_DISK_BUS_TYPE_UNKNOWN;
 466    }
 467    return win2qemu[(int)bus];
 468}
 469
 470DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
 471        0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
 472        0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 473
 474static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
 475{
 476    HDEVINFO dev_info;
 477    SP_DEVINFO_DATA dev_info_data;
 478    DWORD size = 0;
 479    int i;
 480    char dev_name[MAX_PATH];
 481    char *buffer = NULL;
 482    GuestPCIAddress *pci = NULL;
 483    char *name = g_strdup(&guid[4]);
 484
 485    if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
 486        error_setg_win32(errp, GetLastError(), "failed to get dos device name");
 487        goto out;
 488    }
 489
 490    dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
 491                                   DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 492    if (dev_info == INVALID_HANDLE_VALUE) {
 493        error_setg_win32(errp, GetLastError(), "failed to get devices tree");
 494        goto out;
 495    }
 496
 497    dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 498    for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
 499        DWORD addr, bus, slot, func, dev, data, size2;
 500        while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 501                                            SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
 502                                            &data, (PBYTE)buffer, size,
 503                                            &size2)) {
 504            size = MAX(size, size2);
 505            if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 506                g_free(buffer);
 507                /* Double the size to avoid problems on
 508                 * W2k MBCS systems per KB 888609.
 509                 * https://support.microsoft.com/en-us/kb/259695 */
 510                buffer = g_malloc(size * 2);
 511            } else {
 512                error_setg_win32(errp, GetLastError(),
 513                        "failed to get device name");
 514                goto out;
 515            }
 516        }
 517
 518        if (g_strcmp0(buffer, dev_name)) {
 519            continue;
 520        }
 521
 522        /* There is no need to allocate buffer in the next functions. The size
 523         * is known and ULONG according to
 524         * https://support.microsoft.com/en-us/kb/253232
 525         * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
 526         */
 527        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 528                   SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
 529            break;
 530        }
 531
 532        /* The function retrieves the device's address. This value will be
 533         * transformed into device function and number */
 534        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 535                   SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
 536            break;
 537        }
 538
 539        /* This call returns UINumber of DEVICE_CAPABILITIES structure.
 540         * This number is typically a user-perceived slot number. */
 541        if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 542                   SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
 543            break;
 544        }
 545
 546        /* SetupApi gives us the same information as driver with
 547         * IoGetDeviceProperty. According to Microsoft
 548         * https://support.microsoft.com/en-us/kb/253232
 549         * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
 550         * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
 551         * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
 552
 553        func = addr & 0x0000FFFF;
 554        dev = (addr >> 16) & 0x0000FFFF;
 555        pci = g_malloc0(sizeof(*pci));
 556        pci->domain = dev;
 557        pci->slot = slot;
 558        pci->function = func;
 559        pci->bus = bus;
 560        break;
 561    }
 562out:
 563    g_free(buffer);
 564    g_free(name);
 565    return pci;
 566}
 567
 568static int get_disk_bus_type(HANDLE vol_h, Error **errp)
 569{
 570    STORAGE_PROPERTY_QUERY query;
 571    STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
 572    DWORD received;
 573
 574    dev_desc = &buf;
 575    dev_desc->Size = sizeof(buf);
 576    query.PropertyId = StorageDeviceProperty;
 577    query.QueryType = PropertyStandardQuery;
 578
 579    if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 580                         sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 581                         dev_desc->Size, &received, NULL)) {
 582        error_setg_win32(errp, GetLastError(), "failed to get bus type");
 583        return -1;
 584    }
 585
 586    return dev_desc->BusType;
 587}
 588
 589/* VSS provider works with volumes, thus there is no difference if
 590 * the volume consist of spanned disks. Info about the first disk in the
 591 * volume is returned for the spanned disk group (LVM) */
 592static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 593{
 594    GuestDiskAddressList *list = NULL;
 595    GuestDiskAddress *disk;
 596    SCSI_ADDRESS addr, *scsi_ad;
 597    DWORD len;
 598    int bus;
 599    HANDLE vol_h;
 600
 601    scsi_ad = &addr;
 602    char *name = g_strndup(guid, strlen(guid)-1);
 603
 604    vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 605                       0, NULL);
 606    if (vol_h == INVALID_HANDLE_VALUE) {
 607        error_setg_win32(errp, GetLastError(), "failed to open volume");
 608        goto out_free;
 609    }
 610
 611    bus = get_disk_bus_type(vol_h, errp);
 612    if (bus < 0) {
 613        goto out_close;
 614    }
 615
 616    disk = g_malloc0(sizeof(*disk));
 617    disk->bus_type = find_bus_type(bus);
 618    if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
 619#if (_WIN32_WINNT >= 0x0600)
 620            /* This bus type is not supported before Windows Server 2003 SP1 */
 621            || bus == BusTypeSas
 622#endif
 623        ) {
 624        /* We are able to use the same ioctls for different bus types
 625         * according to Microsoft docs
 626         * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
 627        if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
 628                            sizeof(SCSI_ADDRESS), &len, NULL)) {
 629            disk->unit = addr.Lun;
 630            disk->target = addr.TargetId;
 631            disk->bus = addr.PathId;
 632            disk->pci_controller = get_pci_info(name, errp);
 633        }
 634        /* We do not set error in this case, because we still have enough
 635         * information about volume. */
 636    } else {
 637         disk->pci_controller = NULL;
 638    }
 639
 640    list = g_malloc0(sizeof(*list));
 641    list->value = disk;
 642    list->next = NULL;
 643out_close:
 644    CloseHandle(vol_h);
 645out_free:
 646    g_free(name);
 647    return list;
 648}
 649
 650#else
 651
 652static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 653{
 654    return NULL;
 655}
 656
 657#endif /* CONFIG_QGA_NTDDSCSI */
 658
 659static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
 660{
 661    DWORD info_size;
 662    char mnt, *mnt_point;
 663    char fs_name[32];
 664    char vol_info[MAX_PATH+1];
 665    size_t len;
 666    GuestFilesystemInfo *fs = NULL;
 667
 668    GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
 669    if (GetLastError() != ERROR_MORE_DATA) {
 670        error_setg_win32(errp, GetLastError(), "failed to get volume name");
 671        return NULL;
 672    }
 673
 674    mnt_point = g_malloc(info_size + 1);
 675    if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
 676                                         &info_size)) {
 677        error_setg_win32(errp, GetLastError(), "failed to get volume name");
 678        goto free;
 679    }
 680
 681    len = strlen(mnt_point);
 682    mnt_point[len] = '\\';
 683    mnt_point[len+1] = 0;
 684    if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
 685                              NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
 686        if (GetLastError() != ERROR_NOT_READY) {
 687            error_setg_win32(errp, GetLastError(), "failed to get volume info");
 688        }
 689        goto free;
 690    }
 691
 692    fs_name[sizeof(fs_name) - 1] = 0;
 693    fs = g_malloc(sizeof(*fs));
 694    fs->name = g_strdup(guid);
 695    if (len == 0) {
 696        fs->mountpoint = g_strdup("System Reserved");
 697    } else {
 698        fs->mountpoint = g_strndup(mnt_point, len);
 699    }
 700    fs->type = g_strdup(fs_name);
 701    fs->disk = build_guest_disk_info(guid, errp);
 702free:
 703    g_free(mnt_point);
 704    return fs;
 705}
 706
 707GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 708{
 709    HANDLE vol_h;
 710    GuestFilesystemInfoList *new, *ret = NULL;
 711    char guid[256];
 712
 713    vol_h = FindFirstVolume(guid, sizeof(guid));
 714    if (vol_h == INVALID_HANDLE_VALUE) {
 715        error_setg_win32(errp, GetLastError(), "failed to find any volume");
 716        return NULL;
 717    }
 718
 719    do {
 720        GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
 721        if (info == NULL) {
 722            continue;
 723        }
 724        new = g_malloc(sizeof(*ret));
 725        new->value = info;
 726        new->next = ret;
 727        ret = new;
 728    } while (FindNextVolume(vol_h, guid, sizeof(guid)));
 729
 730    if (GetLastError() != ERROR_NO_MORE_FILES) {
 731        error_setg_win32(errp, GetLastError(), "failed to find next volume");
 732    }
 733
 734    FindVolumeClose(vol_h);
 735    return ret;
 736}
 737
 738/*
 739 * Return status of freeze/thaw
 740 */
 741GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 742{
 743    if (!vss_initialized()) {
 744        error_setg(errp, QERR_UNSUPPORTED);
 745        return 0;
 746    }
 747
 748    if (ga_is_frozen(ga_state)) {
 749        return GUEST_FSFREEZE_STATUS_FROZEN;
 750    }
 751
 752    return GUEST_FSFREEZE_STATUS_THAWED;
 753}
 754
 755/*
 756 * Freeze local file systems using Volume Shadow-copy Service.
 757 * The frozen state is limited for up to 10 seconds by VSS.
 758 */
 759int64_t qmp_guest_fsfreeze_freeze(Error **errp)
 760{
 761    int i;
 762    Error *local_err = NULL;
 763
 764    if (!vss_initialized()) {
 765        error_setg(errp, QERR_UNSUPPORTED);
 766        return 0;
 767    }
 768
 769    slog("guest-fsfreeze called");
 770
 771    /* cannot risk guest agent blocking itself on a write in this state */
 772    ga_set_frozen(ga_state);
 773
 774    qga_vss_fsfreeze(&i, &local_err, true);
 775    if (local_err) {
 776        error_propagate(errp, local_err);
 777        goto error;
 778    }
 779
 780    return i;
 781
 782error:
 783    local_err = NULL;
 784    qmp_guest_fsfreeze_thaw(&local_err);
 785    if (local_err) {
 786        g_debug("cleanup thaw: %s", error_get_pretty(local_err));
 787        error_free(local_err);
 788    }
 789    return 0;
 790}
 791
 792int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
 793                                       strList *mountpoints,
 794                                       Error **errp)
 795{
 796    error_setg(errp, QERR_UNSUPPORTED);
 797
 798    return 0;
 799}
 800
 801/*
 802 * Thaw local file systems using Volume Shadow-copy Service.
 803 */
 804int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 805{
 806    int i;
 807
 808    if (!vss_initialized()) {
 809        error_setg(errp, QERR_UNSUPPORTED);
 810        return 0;
 811    }
 812
 813    qga_vss_fsfreeze(&i, errp, false);
 814
 815    ga_unset_frozen(ga_state);
 816    return i;
 817}
 818
 819static void guest_fsfreeze_cleanup(void)
 820{
 821    Error *err = NULL;
 822
 823    if (!vss_initialized()) {
 824        return;
 825    }
 826
 827    if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
 828        qmp_guest_fsfreeze_thaw(&err);
 829        if (err) {
 830            slog("failed to clean up frozen filesystems: %s",
 831                 error_get_pretty(err));
 832            error_free(err);
 833        }
 834    }
 835
 836    vss_deinit(true);
 837}
 838
 839/*
 840 * Walk list of mounted file systems in the guest, and discard unused
 841 * areas.
 842 */
 843GuestFilesystemTrimResponse *
 844qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 845{
 846    error_setg(errp, QERR_UNSUPPORTED);
 847    return NULL;
 848}
 849
 850typedef enum {
 851    GUEST_SUSPEND_MODE_DISK,
 852    GUEST_SUSPEND_MODE_RAM
 853} GuestSuspendMode;
 854
 855static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
 856{
 857    SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
 858    Error *local_err = NULL;
 859
 860    ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
 861    if (!GetPwrCapabilities(&sys_pwr_caps)) {
 862        error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 863                   "failed to determine guest suspend capabilities");
 864        goto out;
 865    }
 866
 867    switch (mode) {
 868    case GUEST_SUSPEND_MODE_DISK:
 869        if (!sys_pwr_caps.SystemS4) {
 870            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 871                       "suspend-to-disk not supported by OS");
 872        }
 873        break;
 874    case GUEST_SUSPEND_MODE_RAM:
 875        if (!sys_pwr_caps.SystemS3) {
 876            error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 877                       "suspend-to-ram not supported by OS");
 878        }
 879        break;
 880    default:
 881        error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
 882                   "GuestSuspendMode");
 883    }
 884
 885out:
 886    if (local_err) {
 887        error_propagate(errp, local_err);
 888    }
 889}
 890
 891static DWORD WINAPI do_suspend(LPVOID opaque)
 892{
 893    GuestSuspendMode *mode = opaque;
 894    DWORD ret = 0;
 895
 896    if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
 897        slog("failed to suspend guest, %lu", GetLastError());
 898        ret = -1;
 899    }
 900    g_free(mode);
 901    return ret;
 902}
 903
 904void qmp_guest_suspend_disk(Error **errp)
 905{
 906    Error *local_err = NULL;
 907    GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 908
 909    *mode = GUEST_SUSPEND_MODE_DISK;
 910    check_suspend_mode(*mode, &local_err);
 911    acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 912    execute_async(do_suspend, mode, &local_err);
 913
 914    if (local_err) {
 915        error_propagate(errp, local_err);
 916        g_free(mode);
 917    }
 918}
 919
 920void qmp_guest_suspend_ram(Error **errp)
 921{
 922    Error *local_err = NULL;
 923    GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 924
 925    *mode = GUEST_SUSPEND_MODE_RAM;
 926    check_suspend_mode(*mode, &local_err);
 927    acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 928    execute_async(do_suspend, mode, &local_err);
 929
 930    if (local_err) {
 931        error_propagate(errp, local_err);
 932        g_free(mode);
 933    }
 934}
 935
 936void qmp_guest_suspend_hybrid(Error **errp)
 937{
 938    error_setg(errp, QERR_UNSUPPORTED);
 939}
 940
 941static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
 942{
 943    IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
 944    ULONG adptr_addrs_len = 0;
 945    DWORD ret;
 946
 947    /* Call the first time to get the adptr_addrs_len. */
 948    GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 949                         NULL, adptr_addrs, &adptr_addrs_len);
 950
 951    adptr_addrs = g_malloc(adptr_addrs_len);
 952    ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 953                               NULL, adptr_addrs, &adptr_addrs_len);
 954    if (ret != ERROR_SUCCESS) {
 955        error_setg_win32(errp, ret, "failed to get adapters addresses");
 956        g_free(adptr_addrs);
 957        adptr_addrs = NULL;
 958    }
 959    return adptr_addrs;
 960}
 961
 962static char *guest_wctomb_dup(WCHAR *wstr)
 963{
 964    char *str;
 965    size_t i;
 966
 967    i = wcslen(wstr) + 1;
 968    str = g_malloc(i);
 969    WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
 970                        wstr, -1, str, i, NULL, NULL);
 971    return str;
 972}
 973
 974static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
 975                               Error **errp)
 976{
 977    char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
 978    DWORD len;
 979    int ret;
 980
 981    if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
 982            ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
 983        len = sizeof(addr_str);
 984        ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
 985                                 ip_addr->Address.iSockaddrLength,
 986                                 NULL,
 987                                 addr_str,
 988                                 &len);
 989        if (ret != 0) {
 990            error_setg_win32(errp, WSAGetLastError(),
 991                "failed address presentation form conversion");
 992            return NULL;
 993        }
 994        return g_strdup(addr_str);
 995    }
 996    return NULL;
 997}
 998
 999#if (_WIN32_WINNT >= 0x0600)
1000static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1001{
1002    /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1003     * field to obtain the prefix.
1004     */
1005    return ip_addr->OnLinkPrefixLength;
1006}
1007#else
1008/* When using the Windows XP and 2003 build environment, do the best we can to
1009 * figure out the prefix.
1010 */
1011static IP_ADAPTER_INFO *guest_get_adapters_info(void)
1012{
1013    IP_ADAPTER_INFO *adptr_info = NULL;
1014    ULONG adptr_info_len = 0;
1015    DWORD ret;
1016
1017    /* Call the first time to get the adptr_info_len. */
1018    GetAdaptersInfo(adptr_info, &adptr_info_len);
1019
1020    adptr_info = g_malloc(adptr_info_len);
1021    ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
1022    if (ret != ERROR_SUCCESS) {
1023        g_free(adptr_info);
1024        adptr_info = NULL;
1025    }
1026    return adptr_info;
1027}
1028
1029static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1030{
1031    int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
1032    IP_ADAPTER_INFO *adptr_info, *info;
1033    IP_ADDR_STRING *ip;
1034    struct in_addr *p;
1035
1036    if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
1037        return prefix;
1038    }
1039    adptr_info = guest_get_adapters_info();
1040    if (adptr_info == NULL) {
1041        return prefix;
1042    }
1043
1044    /* Match up the passed in ip_addr with one found in adaptr_info.
1045     * The matching one in adptr_info will have the netmask.
1046     */
1047    p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
1048    for (info = adptr_info; info; info = info->Next) {
1049        for (ip = &info->IpAddressList; ip; ip = ip->Next) {
1050            if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
1051                prefix = ctpop32(inet_addr(ip->IpMask.String));
1052                goto out;
1053            }
1054        }
1055    }
1056out:
1057    g_free(adptr_info);
1058    return prefix;
1059}
1060#endif
1061
1062GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1063{
1064    IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1065    IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1066    GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1067    GuestIpAddressList *head_addr, *cur_addr;
1068    GuestNetworkInterfaceList *info;
1069    GuestIpAddressList *address_item = NULL;
1070    unsigned char *mac_addr;
1071    char *addr_str;
1072    WORD wsa_version;
1073    WSADATA wsa_data;
1074    int ret;
1075
1076    adptr_addrs = guest_get_adapters_addresses(errp);
1077    if (adptr_addrs == NULL) {
1078        return NULL;
1079    }
1080
1081    /* Make WSA APIs available. */
1082    wsa_version = MAKEWORD(2, 2);
1083    ret = WSAStartup(wsa_version, &wsa_data);
1084    if (ret != 0) {
1085        error_setg_win32(errp, ret, "failed socket startup");
1086        goto out;
1087    }
1088
1089    for (addr = adptr_addrs; addr; addr = addr->Next) {
1090        info = g_malloc0(sizeof(*info));
1091
1092        if (cur_item == NULL) {
1093            head = cur_item = info;
1094        } else {
1095            cur_item->next = info;
1096            cur_item = info;
1097        }
1098
1099        info->value = g_malloc0(sizeof(*info->value));
1100        info->value->name = guest_wctomb_dup(addr->FriendlyName);
1101
1102        if (addr->PhysicalAddressLength != 0) {
1103            mac_addr = addr->PhysicalAddress;
1104
1105            info->value->hardware_address =
1106                g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1107                                (int) mac_addr[0], (int) mac_addr[1],
1108                                (int) mac_addr[2], (int) mac_addr[3],
1109                                (int) mac_addr[4], (int) mac_addr[5]);
1110
1111            info->value->has_hardware_address = true;
1112        }
1113
1114        head_addr = NULL;
1115        cur_addr = NULL;
1116        for (ip_addr = addr->FirstUnicastAddress;
1117                ip_addr;
1118                ip_addr = ip_addr->Next) {
1119            addr_str = guest_addr_to_str(ip_addr, errp);
1120            if (addr_str == NULL) {
1121                continue;
1122            }
1123
1124            address_item = g_malloc0(sizeof(*address_item));
1125
1126            if (!cur_addr) {
1127                head_addr = cur_addr = address_item;
1128            } else {
1129                cur_addr->next = address_item;
1130                cur_addr = address_item;
1131            }
1132
1133            address_item->value = g_malloc0(sizeof(*address_item->value));
1134            address_item->value->ip_address = addr_str;
1135            address_item->value->prefix = guest_ip_prefix(ip_addr);
1136            if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1137                address_item->value->ip_address_type =
1138                    GUEST_IP_ADDRESS_TYPE_IPV4;
1139            } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1140                address_item->value->ip_address_type =
1141                    GUEST_IP_ADDRESS_TYPE_IPV6;
1142            }
1143        }
1144        if (head_addr) {
1145            info->value->has_ip_addresses = true;
1146            info->value->ip_addresses = head_addr;
1147        }
1148    }
1149    WSACleanup();
1150out:
1151    g_free(adptr_addrs);
1152    return head;
1153}
1154
1155int64_t qmp_guest_get_time(Error **errp)
1156{
1157    SYSTEMTIME ts = {0};
1158    int64_t time_ns;
1159    FILETIME tf;
1160
1161    GetSystemTime(&ts);
1162    if (ts.wYear < 1601 || ts.wYear > 30827) {
1163        error_setg(errp, "Failed to get time");
1164        return -1;
1165    }
1166
1167    if (!SystemTimeToFileTime(&ts, &tf)) {
1168        error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1169        return -1;
1170    }
1171
1172    time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1173                - W32_FT_OFFSET) * 100;
1174
1175    return time_ns;
1176}
1177
1178void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1179{
1180    Error *local_err = NULL;
1181    SYSTEMTIME ts;
1182    FILETIME tf;
1183    LONGLONG time;
1184
1185    if (!has_time) {
1186        /* Unfortunately, Windows libraries don't provide an easy way to access
1187         * RTC yet:
1188         *
1189         * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1190         */
1191        error_setg(errp, "Time argument is required on this platform");
1192        return;
1193    }
1194
1195    /* Validate time passed by user. */
1196    if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1197        error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1198        return;
1199    }
1200
1201    time = time_ns / 100 + W32_FT_OFFSET;
1202
1203    tf.dwLowDateTime = (DWORD) time;
1204    tf.dwHighDateTime = (DWORD) (time >> 32);
1205
1206    if (!FileTimeToSystemTime(&tf, &ts)) {
1207        error_setg(errp, "Failed to convert system time %d",
1208                   (int)GetLastError());
1209        return;
1210    }
1211
1212    acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1213    if (local_err) {
1214        error_propagate(errp, local_err);
1215        return;
1216    }
1217
1218    if (!SetSystemTime(&ts)) {
1219        error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1220        return;
1221    }
1222}
1223
1224GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1225{
1226    PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1227    DWORD length;
1228    GuestLogicalProcessorList *head, **link;
1229    Error *local_err = NULL;
1230    int64_t current;
1231
1232    ptr = pslpi = NULL;
1233    length = 0;
1234    current = 0;
1235    head = NULL;
1236    link = &head;
1237
1238    if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1239        (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1240        (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1241        ptr = pslpi = g_malloc0(length);
1242        if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1243            error_setg(&local_err, "Failed to get processor information: %d",
1244                       (int)GetLastError());
1245        }
1246    } else {
1247        error_setg(&local_err,
1248                   "Failed to get processor information buffer length: %d",
1249                   (int)GetLastError());
1250    }
1251
1252    while ((local_err == NULL) && (length > 0)) {
1253        if (pslpi->Relationship == RelationProcessorCore) {
1254            ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1255
1256            while (cpu_bits > 0) {
1257                if (!!(cpu_bits & 1)) {
1258                    GuestLogicalProcessor *vcpu;
1259                    GuestLogicalProcessorList *entry;
1260
1261                    vcpu = g_malloc0(sizeof *vcpu);
1262                    vcpu->logical_id = current++;
1263                    vcpu->online = true;
1264                    vcpu->has_can_offline = false;
1265
1266                    entry = g_malloc0(sizeof *entry);
1267                    entry->value = vcpu;
1268
1269                    *link = entry;
1270                    link = &entry->next;
1271                }
1272                cpu_bits >>= 1;
1273            }
1274        }
1275        length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1276        pslpi++; /* next entry */
1277    }
1278
1279    g_free(ptr);
1280
1281    if (local_err == NULL) {
1282        if (head != NULL) {
1283            return head;
1284        }
1285        /* there's no guest with zero VCPUs */
1286        error_setg(&local_err, "Guest reported zero VCPUs");
1287    }
1288
1289    qapi_free_GuestLogicalProcessorList(head);
1290    error_propagate(errp, local_err);
1291    return NULL;
1292}
1293
1294int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1295{
1296    error_setg(errp, QERR_UNSUPPORTED);
1297    return -1;
1298}
1299
1300static gchar *
1301get_net_error_message(gint error)
1302{
1303    HMODULE module = NULL;
1304    gchar *retval = NULL;
1305    wchar_t *msg = NULL;
1306    int flags;
1307    size_t nchars;
1308
1309    flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1310        FORMAT_MESSAGE_IGNORE_INSERTS |
1311        FORMAT_MESSAGE_FROM_SYSTEM;
1312
1313    if (error >= NERR_BASE && error <= MAX_NERR) {
1314        module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1315
1316        if (module != NULL) {
1317            flags |= FORMAT_MESSAGE_FROM_HMODULE;
1318        }
1319    }
1320
1321    FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1322
1323    if (msg != NULL) {
1324        nchars = wcslen(msg);
1325
1326        if (nchars >= 2 &&
1327            msg[nchars - 1] == L'\n' &&
1328            msg[nchars - 2] == L'\r') {
1329            msg[nchars - 2] = L'\0';
1330        }
1331
1332        retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1333
1334        LocalFree(msg);
1335    }
1336
1337    if (module != NULL) {
1338        FreeLibrary(module);
1339    }
1340
1341    return retval;
1342}
1343
1344void qmp_guest_set_user_password(const char *username,
1345                                 const char *password,
1346                                 bool crypted,
1347                                 Error **errp)
1348{
1349    NET_API_STATUS nas;
1350    char *rawpasswddata = NULL;
1351    size_t rawpasswdlen;
1352    wchar_t *user = NULL, *wpass = NULL;
1353    USER_INFO_1003 pi1003 = { 0, };
1354    GError *gerr = NULL;
1355
1356    if (crypted) {
1357        error_setg(errp, QERR_UNSUPPORTED);
1358        return;
1359    }
1360
1361    rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1362    if (!rawpasswddata) {
1363        return;
1364    }
1365    rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1366    rawpasswddata[rawpasswdlen] = '\0';
1367
1368    user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1369    if (!user) {
1370        goto done;
1371    }
1372
1373    wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1374    if (!wpass) {
1375        goto done;
1376    }
1377
1378    pi1003.usri1003_password = wpass;
1379    nas = NetUserSetInfo(NULL, user,
1380                         1003, (LPBYTE)&pi1003,
1381                         NULL);
1382
1383    if (nas != NERR_Success) {
1384        gchar *msg = get_net_error_message(nas);
1385        error_setg(errp, "failed to set password: %s", msg);
1386        g_free(msg);
1387    }
1388
1389done:
1390    if (gerr) {
1391        error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1392        g_error_free(gerr);
1393    }
1394    g_free(user);
1395    g_free(wpass);
1396    g_free(rawpasswddata);
1397}
1398
1399GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1400{
1401    error_setg(errp, QERR_UNSUPPORTED);
1402    return NULL;
1403}
1404
1405GuestMemoryBlockResponseList *
1406qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1407{
1408    error_setg(errp, QERR_UNSUPPORTED);
1409    return NULL;
1410}
1411
1412GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1413{
1414    error_setg(errp, QERR_UNSUPPORTED);
1415    return NULL;
1416}
1417
1418/* add unsupported commands to the blacklist */
1419GList *ga_command_blacklist_init(GList *blacklist)
1420{
1421    const char *list_unsupported[] = {
1422        "guest-suspend-hybrid",
1423        "guest-set-vcpus",
1424        "guest-get-memory-blocks", "guest-set-memory-blocks",
1425        "guest-get-memory-block-size",
1426        "guest-fsfreeze-freeze-list",
1427        "guest-fstrim", NULL};
1428    char **p = (char **)list_unsupported;
1429
1430    while (*p) {
1431        blacklist = g_list_append(blacklist, g_strdup(*p++));
1432    }
1433
1434    if (!vss_init(true)) {
1435        g_debug("vss_init failed, vss commands are going to be disabled");
1436        const char *list[] = {
1437            "guest-get-fsinfo", "guest-fsfreeze-status",
1438            "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1439        p = (char **)list;
1440
1441        while (*p) {
1442            blacklist = g_list_append(blacklist, g_strdup(*p++));
1443        }
1444    }
1445
1446    return blacklist;
1447}
1448
1449/* register init/cleanup routines for stateful command groups */
1450void ga_command_state_init(GAState *s, GACommandState *cs)
1451{
1452    if (!vss_initialized()) {
1453        ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1454    }
1455}
1456