qga/commands-win32.c

   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 #include "qemu/osdep.h"
  14
  15 #include <wtypes.h>
  16 #include <powrprof.h>
  17 #include <winsock2.h>
  18 #include <ws2tcpip.h>
  19 #include <iptypes.h>
  20 #include <iphlpapi.h>
  21 #include <winioctl.h>
  22 #include <ntddscsi.h>
  23 #include <setupapi.h>
  24 #include <cfgmgr32.h>
  25 #include <initguid.h>
  26 #include <devpropdef.h>
  27 #include <lm.h>
  28 #include <wtsapi32.h>
  29 #include <wininet.h>
  30
  31 #include "guest-agent-core.h"
  32 #include "vss-win32.h"
  33 #include "qga-qapi-commands.h"
  34 #include "qapi/error.h"
  35 #include "qapi/qmp/qerror.h"
  36 #include "qemu/queue.h"
  37 #include "qemu/host-utils.h"
  38 #include "qemu/base64.h"
  39 #include "commands-common.h"
  40
  41 /*
  42  * The following should be in devpkey.h, but it isn't. The key names were
  43  * prefixed to avoid (future) name clashes. Once the definitions get into
  44  * mingw the following lines can be removed.
  45  */
  46 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5,
  47     0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10);
  48     /* DEVPROP_TYPE_STRING */
  49 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c,
  50     0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3);
  51     /* DEVPROP_TYPE_STRING_LIST */
  52 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d,
  53     0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2);
  54     /* DEVPROP_TYPE_FILETIME */
  55 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d,
  56     0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3);
  57     /* DEVPROP_TYPE_STRING */
  58 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */
  59 #ifndef CM_Get_DevNode_Property
  60 #pragma GCC diagnostic push
  61 #pragma GCC diagnostic ignored "-Wredundant-decls"
  62 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
  63     DEVINST          dnDevInst,
  64     CONST DEVPROPKEY * PropertyKey,
  65     DEVPROPTYPE      * PropertyType,
  66     PBYTE            PropertyBuffer,
  67     PULONG           PropertyBufferSize,
  68     ULONG            ulFlags
  69 );
  70 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW
  71 #pragma GCC diagnostic pop
  72 #endif
  73
  74 #ifndef SHTDN_REASON_FLAG_PLANNED
  75 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
  76 #endif
  77
  78 /* multiple of 100 nanoseconds elapsed between windows baseline
  79  *    (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
  80 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
  81                        (365 * (1970 - 1601) +       \
  82                         (1970 - 1601) / 4 - 3))
  83
  84 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
  85
  86 struct GuestFileHandle {
  87     int64_t id;
  88     HANDLE fh;
  89     QTAILQ_ENTRY(GuestFileHandle) next;
  90 };
  91
  92 static struct {
  93     QTAILQ_HEAD(, GuestFileHandle) filehandles;
  94 } guest_file_state = {
  95     .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
  96 };
  97
  98 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
  99
 100 typedef struct OpenFlags {
 101     const char *forms;
 102     DWORD desired_access;
 103     DWORD creation_disposition;
 104 } OpenFlags;
 105 static OpenFlags guest_file_open_modes[] = {
 106     {"r",   GENERIC_READ,                     OPEN_EXISTING},
 107     {"rb",  GENERIC_READ,                     OPEN_EXISTING},
 108     {"w",   GENERIC_WRITE,                    CREATE_ALWAYS},
 109     {"wb",  GENERIC_WRITE,                    CREATE_ALWAYS},
 110     {"a",   FILE_GENERIC_APPEND,              OPEN_ALWAYS  },
 111     {"r+",  GENERIC_WRITE | GENERIC_READ,       OPEN_EXISTING},
 112     {"rb+", GENERIC_WRITE | GENERIC_READ,       OPEN_EXISTING},
 113     {"r+b", GENERIC_WRITE | GENERIC_READ,       OPEN_EXISTING},
 114     {"w+",  GENERIC_WRITE | GENERIC_READ,       CREATE_ALWAYS},
 115     {"wb+", GENERIC_WRITE | GENERIC_READ,       CREATE_ALWAYS},
 116     {"w+b", GENERIC_WRITE | GENERIC_READ,       CREATE_ALWAYS},
 117     {"a+",  FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS  },
 118     {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS  },
 119     {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS  }
 120 };
 121
 122 #define debug_error(msg) do { \
 123     char *suffix = g_win32_error_message(GetLastError()); \
 124     g_debug("%s: %s", (msg), suffix); \
 125     g_free(suffix); \
 126 } while (0)
 127
 128 static OpenFlags *find_open_flag(const char *mode_str)
 129 {
 130     int mode;
 131     Error **errp = NULL;
 132
 133     for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
 134         OpenFlags *flags = guest_file_open_modes + mode;
 135
 136         if (strcmp(flags->forms, mode_str) == 0) {
 137             return flags;
 138         }
 139     }
 140
 141     error_setg(errp, "invalid file open mode '%s'", mode_str);
 142     return NULL;
 143 }
 144
 145 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
 146 {
 147     GuestFileHandle *gfh;
 148     int64_t handle;
 149
 150     handle = ga_get_fd_handle(ga_state, errp);
 151     if (handle < 0) {
 152         return -1;
 153     }
 154     gfh = g_new0(GuestFileHandle, 1);
 155     gfh->id = handle;
 156     gfh->fh = fh;
 157     QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
 158
 159     return handle;
 160 }
 161
 162 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
 163 {
 164     GuestFileHandle *gfh;
 165     QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
 166         if (gfh->id == id) {
 167             return gfh;
 168         }
 169     }
 170     error_setg(errp, "handle '%" PRId64 "' has not been found", id);
 171     return NULL;
 172 }
 173
 174 static void handle_set_nonblocking(HANDLE fh)
 175 {
 176     DWORD file_type, pipe_state;
 177     file_type = GetFileType(fh);
 178     if (file_type != FILE_TYPE_PIPE) {
 179         return;
 180     }
 181     /* If file_type == FILE_TYPE_PIPE, according to MSDN
 182      * the specified file is socket or named pipe */
 183     if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
 184                                  NULL, NULL, NULL, 0)) {
 185         return;
 186     }
 187     /* The fd is named pipe fd */
 188     if (pipe_state & PIPE_NOWAIT) {
 189         return;
 190     }
 191
 192     pipe_state |= PIPE_NOWAIT;
 193     SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
 194 }
 195
 196 int64_t qmp_guest_file_open(const char *path, const char *mode, Error **errp)
 197 {
 198     int64_t fd = -1;
 199     HANDLE fh;
 200     HANDLE templ_file = NULL;
 201     DWORD share_mode = FILE_SHARE_READ;
 202     DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
 203     LPSECURITY_ATTRIBUTES sa_attr = NULL;
 204     OpenFlags *guest_flags;
 205     GError *gerr = NULL;
 206     wchar_t *w_path = NULL;
 207
 208     if (!mode) {
 209         mode = "r";
 210     }
 211     slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
 212     guest_flags = find_open_flag(mode);
 213     if (guest_flags == NULL) {
 214         error_setg(errp, "invalid file open mode");
 215         goto done;
 216     }
 217
 218     w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
 219     if (!w_path) {
 220         goto done;
 221     }
 222
 223     fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
 224                     guest_flags->creation_disposition, flags_and_attr,
 225                     templ_file);
 226     if (fh == INVALID_HANDLE_VALUE) {
 227         error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
 228                          path);
 229         goto done;
 230     }
 231
 232     /* set fd non-blocking to avoid common use cases (like reading from a
 233      * named pipe) from hanging the agent
 234      */
 235     handle_set_nonblocking(fh);
 236
 237     fd = guest_file_handle_add(fh, errp);
 238     if (fd < 0) {
 239         CloseHandle(fh);
 240         error_setg(errp, "failed to add handle to qmp handle table");
 241         goto done;
 242     }
 243
 244     slog("guest-file-open, handle: % " PRId64, fd);
 245
 246 done:
 247     if (gerr) {
 248         error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
 249         g_error_free(gerr);
 250     }
 251     g_free(w_path);
 252     return fd;
 253 }
 254
 255 void qmp_guest_file_close(int64_t handle, Error **errp)
 256 {
 257     bool ret;
 258     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 259     slog("guest-file-close called, handle: %" PRId64, handle);
 260     if (gfh == NULL) {
 261         return;
 262     }
 263     ret = CloseHandle(gfh->fh);
 264     if (!ret) {
 265         error_setg_win32(errp, GetLastError(), "failed close handle");
 266         return;
 267     }
 268
 269     QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
 270     g_free(gfh);
 271 }
 272
 273 static void acquire_privilege(const char *name, Error **errp)
 274 {
 275     HANDLE token = NULL;
 276     TOKEN_PRIVILEGES priv;
 277
 278     if (OpenProcessToken(GetCurrentProcess(),
 279         TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token))
 280     {
 281         if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
 282             error_setg(errp, QERR_QGA_COMMAND_FAILED,
 283                        "no luid for requested privilege");
 284             goto out;
 285         }
 286
 287         priv.PrivilegeCount = 1;
 288         priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 289
 290         if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
 291             error_setg(errp, QERR_QGA_COMMAND_FAILED,
 292                        "unable to acquire requested privilege");
 293             goto out;
 294         }
 295
 296     } else {
 297         error_setg(errp, QERR_QGA_COMMAND_FAILED,
 298                    "failed to open privilege token");
 299     }
 300
 301 out:
 302     if (token) {
 303         CloseHandle(token);
 304     }
 305 }
 306
 307 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
 308                           Error **errp)
 309 {
 310     HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
 311     if (!thread) {
 312         error_setg(errp, QERR_QGA_COMMAND_FAILED,
 313                    "failed to dispatch asynchronous command");
 314     }
 315 }
 316
 317 void qmp_guest_shutdown(const char *mode, Error **errp)
 318 {
 319     Error *local_err = NULL;
 320     UINT shutdown_flag = EWX_FORCE;
 321
 322     slog("guest-shutdown called, mode: %s", mode);
 323
 324     if (!mode || strcmp(mode, "powerdown") == 0) {
 325         shutdown_flag |= EWX_POWEROFF;
 326     } else if (strcmp(mode, "halt") == 0) {
 327         shutdown_flag |= EWX_SHUTDOWN;
 328     } else if (strcmp(mode, "reboot") == 0) {
 329         shutdown_flag |= EWX_REBOOT;
 330     } else {
 331         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
 332                    "'halt', 'powerdown', or 'reboot'");
 333         return;
 334     }
 335
 336     /* Request a shutdown privilege, but try to shut down the system
 337        anyway. */
 338     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 339     if (local_err) {
 340         error_propagate(errp, local_err);
 341         return;
 342     }
 343
 344     if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
 345         g_autofree gchar *emsg = g_win32_error_message(GetLastError());
 346         slog("guest-shutdown failed: %s", emsg);
 347         error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
 348     }
 349 }
 350
 351 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
 352                                       int64_t count, Error **errp)
 353 {
 354     GuestFileRead *read_data = NULL;
 355     guchar *buf;
 356     HANDLE fh = gfh->fh;
 357     bool is_ok;
 358     DWORD read_count;
 359
 360     buf = g_malloc0(count + 1);
 361     is_ok = ReadFile(fh, buf, count, &read_count, NULL);
 362     if (!is_ok) {
 363         error_setg_win32(errp, GetLastError(), "failed to read file");
 364     } else {
 365         buf[read_count] = 0;
 366         read_data = g_new0(GuestFileRead, 1);
 367         read_data->count = (size_t)read_count;
 368         read_data->eof = read_count == 0;
 369
 370         if (read_count != 0) {
 371             read_data->buf_b64 = g_base64_encode(buf, read_count);
 372         }
 373     }
 374     g_free(buf);
 375
 376     return read_data;
 377 }
 378
 379 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
 380                                      bool has_count, int64_t count,
 381                                      Error **errp)
 382 {
 383     GuestFileWrite *write_data = NULL;
 384     guchar *buf;
 385     gsize buf_len;
 386     bool is_ok;
 387     DWORD write_count;
 388     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 389     HANDLE fh;
 390
 391     if (!gfh) {
 392         return NULL;
 393     }
 394     fh = gfh->fh;
 395     buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
 396     if (!buf) {
 397         return NULL;
 398     }
 399
 400     if (!has_count) {
 401         count = buf_len;
 402     } else if (count < 0 || count > buf_len) {
 403         error_setg(errp, "value '%" PRId64
 404                    "' is invalid for argument count", count);
 405         goto done;
 406     }
 407
 408     is_ok = WriteFile(fh, buf, count, &write_count, NULL);
 409     if (!is_ok) {
 410         error_setg_win32(errp, GetLastError(), "failed to write to file");
 411         slog("guest-file-write-failed, handle: %" PRId64, handle);
 412     } else {
 413         write_data = g_new0(GuestFileWrite, 1);
 414         write_data->count = (size_t) write_count;
 415     }
 416
 417 done:
 418     g_free(buf);
 419     return write_data;
 420 }
 421
 422 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
 423                                    GuestFileWhence *whence_code,
 424                                    Error **errp)
 425 {
 426     GuestFileHandle *gfh;
 427     GuestFileSeek *seek_data;
 428     HANDLE fh;
 429     LARGE_INTEGER new_pos, off_pos;
 430     off_pos.QuadPart = offset;
 431     BOOL res;
 432     int whence;
 433     Error *err = NULL;
 434
 435     gfh = guest_file_handle_find(handle, errp);
 436     if (!gfh) {
 437         return NULL;
 438     }
 439
 440     /* We stupidly exposed 'whence':'int' in our qapi */
 441     whence = ga_parse_whence(whence_code, &err);
 442     if (err) {
 443         error_propagate(errp, err);
 444         return NULL;
 445     }
 446
 447     fh = gfh->fh;
 448     res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
 449     if (!res) {
 450         error_setg_win32(errp, GetLastError(), "failed to seek file");
 451         return NULL;
 452     }
 453     seek_data = g_new0(GuestFileSeek, 1);
 454     seek_data->position = new_pos.QuadPart;
 455     return seek_data;
 456 }
 457
 458 void qmp_guest_file_flush(int64_t handle, Error **errp)
 459 {
 460     HANDLE fh;
 461     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 462     if (!gfh) {
 463         return;
 464     }
 465
 466     fh = gfh->fh;
 467     if (!FlushFileBuffers(fh)) {
 468         error_setg_win32(errp, GetLastError(), "failed to flush file");
 469     }
 470 }
 471
 472 static GuestDiskBusType win2qemu[] = {
 473     [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 474     [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
 475     [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
 476     [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
 477     [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
 478     [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
 479     [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
 480     [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
 481     [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
 482     [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
 483     [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
 484     [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
 485     [BusTypeSd] =  GUEST_DISK_BUS_TYPE_SD,
 486     [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
 487     [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
 488     [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
 489     /*
 490      * BusTypeSpaces currently is not supported
 491      */
 492     [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 493     [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME,
 494 };
 495
 496 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
 497 {
 498     if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
 499         return GUEST_DISK_BUS_TYPE_UNKNOWN;
 500     }
 501     return win2qemu[(int)bus];
 502 }
 503
 504 static void get_pci_address_for_device(GuestPCIAddress *pci,
 505                                        HDEVINFO dev_info)
 506 {
 507     SP_DEVINFO_DATA dev_info_data;
 508     DWORD j;
 509     DWORD size;
 510     bool partial_pci = false;
 511
 512     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 513
 514     for (j = 0;
 515          SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data);
 516          j++) {
 517         DWORD addr, bus, ui_slot, type;
 518         int func, slot;
 519         size = sizeof(DWORD);
 520
 521         /*
 522         * There is no need to allocate buffer in the next functions. The
 523         * size is known and ULONG according to
 524         * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
 525         */
 526         if (!SetupDiGetDeviceRegistryProperty(
 527                 dev_info, &dev_info_data, SPDRP_BUSNUMBER,
 528                 &type, (PBYTE)&bus, size, NULL)) {
 529             debug_error("failed to get PCI bus");
 530             bus = -1;
 531             partial_pci = true;
 532         }
 533
 534         /*
 535         * The function retrieves the device's address. This value will be
 536         * transformed into device function and number
 537         */
 538         if (!SetupDiGetDeviceRegistryProperty(
 539                 dev_info, &dev_info_data, SPDRP_ADDRESS,
 540                 &type, (PBYTE)&addr, size, NULL)) {
 541             debug_error("failed to get PCI address");
 542             addr = -1;
 543             partial_pci = true;
 544         }
 545
 546         /*
 547         * This call returns UINumber of DEVICE_CAPABILITIES structure.
 548         * This number is typically a user-perceived slot number.
 549         */
 550         if (!SetupDiGetDeviceRegistryProperty(
 551                 dev_info, &dev_info_data, SPDRP_UI_NUMBER,
 552                 &type, (PBYTE)&ui_slot, size, NULL)) {
 553             debug_error("failed to get PCI slot");
 554             ui_slot = -1;
 555             partial_pci = true;
 556         }
 557
 558         /*
 559         * SetupApi gives us the same information as driver with
 560         * IoGetDeviceProperty. According to Microsoft:
 561         *
 562         *   FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
 563         *   DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
 564         *   SPDRP_ADDRESS is propertyAddress, so we do the same.
 565         *
 566         * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
 567         */
 568         if (partial_pci) {
 569             pci->domain = -1;
 570             pci->slot = -1;
 571             pci->function = -1;
 572             pci->bus = -1;
 573             continue;
 574         } else {
 575             func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
 576             slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
 577             if ((int)ui_slot != slot) {
 578                 g_debug("mismatch with reported slot values: %d vs %d",
 579                         (int)ui_slot, slot);
 580             }
 581             pci->domain = 0;
 582             pci->slot = (int)ui_slot;
 583             pci->function = func;
 584             pci->bus = (int)bus;
 585             return;
 586         }
 587     }
 588 }
 589
 590 static GuestPCIAddress *get_empty_pci_address(void)
 591 {
 592     GuestPCIAddress *pci = NULL;
 593
 594     pci = g_malloc0(sizeof(*pci));
 595     pci->domain = -1;
 596     pci->slot = -1;
 597     pci->function = -1;
 598     pci->bus = -1;
 599     return pci;
 600 }
 601
 602 static GuestPCIAddress *get_pci_info(int number, Error **errp)
 603 {
 604     HDEVINFO dev_info = INVALID_HANDLE_VALUE;
 605     HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE;
 606
 607     SP_DEVINFO_DATA dev_info_data;
 608     SP_DEVICE_INTERFACE_DATA dev_iface_data;
 609     HANDLE dev_file;
 610     int i;
 611     GuestPCIAddress *pci = get_empty_pci_address();
 612
 613     dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
 614                                    DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 615     if (dev_info == INVALID_HANDLE_VALUE) {
 616         error_setg_win32(errp, GetLastError(), "failed to get devices tree");
 617         goto end;
 618     }
 619
 620     g_debug("enumerating devices");
 621     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 622     dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
 623     for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
 624         g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
 625         STORAGE_DEVICE_NUMBER sdn;
 626         g_autofree char *parent_dev_id = NULL;
 627         SP_DEVINFO_DATA parent_dev_info_data;
 628         DWORD size = 0;
 629
 630         g_debug("getting device path");
 631         if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
 632                                         &GUID_DEVINTERFACE_DISK, 0,
 633                                         &dev_iface_data)) {
 634             if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
 635                                                  pdev_iface_detail_data,
 636                                                  size, &size,
 637                                                  &dev_info_data)) {
 638                 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 639                     pdev_iface_detail_data = g_malloc(size);
 640                     pdev_iface_detail_data->cbSize =
 641                         sizeof(*pdev_iface_detail_data);
 642                 } else {
 643                     error_setg_win32(errp, GetLastError(),
 644                                      "failed to get device interfaces");
 645                     goto end;
 646                 }
 647             }
 648
 649             if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
 650                                                  pdev_iface_detail_data,
 651                                                  size, &size,
 652                                                  &dev_info_data)) {
 653                 // pdev_iface_detail_data already is allocated
 654                 error_setg_win32(errp, GetLastError(),
 655                                     "failed to get device interfaces");
 656                 goto end;
 657             }
 658
 659             dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
 660                                   FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
 661                                   NULL);
 662
 663             if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
 664                                  NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
 665                 CloseHandle(dev_file);
 666                 error_setg_win32(errp, GetLastError(),
 667                                  "failed to get device slot number");
 668                 goto end;
 669             }
 670
 671             CloseHandle(dev_file);
 672             if (sdn.DeviceNumber != number) {
 673                 continue;
 674             }
 675         } else {
 676             error_setg_win32(errp, GetLastError(),
 677                              "failed to get device interfaces");
 678             goto end;
 679         }
 680
 681         g_debug("found device slot %d. Getting storage controller", number);
 682         {
 683             CONFIGRET cr;
 684             DEVINST dev_inst, parent_dev_inst;
 685             ULONG dev_id_size = 0;
 686
 687             size = 0;
 688             if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
 689                                             parent_dev_id, size, &size)) {
 690                 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 691                     parent_dev_id = g_malloc(size);
 692                 } else {
 693                     error_setg_win32(errp, GetLastError(),
 694                                      "failed to get device instance ID");
 695                     goto end;
 696                 }
 697             }
 698
 699             if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
 700                                             parent_dev_id, size, &size)) {
 701                 // parent_dev_id already is allocated
 702                 error_setg_win32(errp, GetLastError(),
 703                                     "failed to get device instance ID");
 704                 goto end;
 705             }
 706
 707             /*
 708              * CM API used here as opposed to
 709              * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
 710              * which exports are only available in mingw-w64 6+
 711              */
 712             cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
 713             if (cr != CR_SUCCESS) {
 714                 g_error("CM_Locate_DevInst failed with code %lx", cr);
 715                 error_setg_win32(errp, GetLastError(),
 716                                  "failed to get device instance");
 717                 goto end;
 718             }
 719             cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
 720             if (cr != CR_SUCCESS) {
 721                 g_error("CM_Get_Parent failed with code %lx", cr);
 722                 error_setg_win32(errp, GetLastError(),
 723                                  "failed to get parent device instance");
 724                 goto end;
 725             }
 726
 727             cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
 728             if (cr != CR_SUCCESS) {
 729                 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
 730                 error_setg_win32(errp, GetLastError(),
 731                                  "failed to get parent device ID length");
 732                 goto end;
 733             }
 734
 735             ++dev_id_size;
 736             if (dev_id_size > size) {
 737                 g_free(parent_dev_id);
 738                 parent_dev_id = g_malloc(dev_id_size);
 739             }
 740
 741             cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
 742                                   0);
 743             if (cr != CR_SUCCESS) {
 744                 g_error("CM_Get_Device_ID failed with code %lx", cr);
 745                 error_setg_win32(errp, GetLastError(),
 746                                  "failed to get parent device ID");
 747                 goto end;
 748             }
 749         }
 750
 751         g_debug("querying storage controller %s for PCI information",
 752                 parent_dev_id);
 753         parent_dev_info =
 754             SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
 755                                 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 756
 757         if (parent_dev_info == INVALID_HANDLE_VALUE) {
 758             error_setg_win32(errp, GetLastError(),
 759                              "failed to get parent device");
 760             goto end;
 761         }
 762
 763         parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 764         if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
 765             error_setg_win32(errp, GetLastError(),
 766                            "failed to get parent device data");
 767             goto end;
 768         }
 769
 770         get_pci_address_for_device(pci, parent_dev_info);
 771
 772         break;
 773     }
 774
 775 end:
 776     if (parent_dev_info != INVALID_HANDLE_VALUE) {
 777         SetupDiDestroyDeviceInfoList(parent_dev_info);
 778     }
 779     if (dev_info != INVALID_HANDLE_VALUE) {
 780         SetupDiDestroyDeviceInfoList(dev_info);
 781     }
 782     return pci;
 783 }
 784
 785 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
 786     Error **errp)
 787 {
 788     STORAGE_PROPERTY_QUERY query;
 789     STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
 790     DWORD received;
 791     ULONG size = sizeof(buf);
 792
 793     dev_desc = &buf;
 794     query.PropertyId = StorageDeviceProperty;
 795     query.QueryType = PropertyStandardQuery;
 796
 797     if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 798                          sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 799                          size, &received, NULL)) {
 800         error_setg_win32(errp, GetLastError(), "failed to get bus type");
 801         return;
 802     }
 803     disk->bus_type = find_bus_type(dev_desc->BusType);
 804     g_debug("bus type %d", disk->bus_type);
 805
 806     /* Query once more. Now with long enough buffer. */
 807     size = dev_desc->Size;
 808     dev_desc = g_malloc0(size);
 809     if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 810                          sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 811                          size, &received, NULL)) {
 812         error_setg_win32(errp, GetLastError(), "failed to get serial number");
 813         g_debug("failed to get serial number");
 814         goto out_free;
 815     }
 816     if (dev_desc->SerialNumberOffset > 0) {
 817         const char *serial;
 818         size_t len;
 819
 820         if (dev_desc->SerialNumberOffset >= received) {
 821             error_setg(errp, "failed to get serial number: offset outside the buffer");
 822             g_debug("serial number offset outside the buffer");
 823             goto out_free;
 824         }
 825         serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
 826         len = received - dev_desc->SerialNumberOffset;
 827         g_debug("serial number \"%s\"", serial);
 828         if (*serial != 0) {
 829             disk->serial = g_strndup(serial, len);
 830         }
 831     }
 832 out_free:
 833     g_free(dev_desc);
 834
 835     return;
 836 }
 837
 838 static void get_single_disk_info(int disk_number,
 839                                  GuestDiskAddress *disk, Error **errp)
 840 {
 841     SCSI_ADDRESS addr, *scsi_ad;
 842     DWORD len;
 843     HANDLE disk_h;
 844     Error *local_err = NULL;
 845
 846     scsi_ad = &addr;
 847
 848     g_debug("getting disk info for: %s", disk->dev);
 849     disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 850                        0, NULL);
 851     if (disk_h == INVALID_HANDLE_VALUE) {
 852         error_setg_win32(errp, GetLastError(), "failed to open disk");
 853         return;
 854     }
 855
 856     get_disk_properties(disk_h, disk, &local_err);
 857     if (local_err) {
 858         error_propagate(errp, local_err);
 859         goto err_close;
 860     }
 861
 862     g_debug("bus type %d", disk->bus_type);
 863     /* always set pci_controller as required by schema. get_pci_info() should
 864      * report -1 values for non-PCI buses rather than fail. fail the command
 865      * if that doesn't hold since that suggests some other unexpected
 866      * breakage
 867      */
 868     if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) {
 869         disk->pci_controller = get_empty_pci_address();
 870     } else {
 871         disk->pci_controller = get_pci_info(disk_number, &local_err);
 872         if (local_err) {
 873             error_propagate(errp, local_err);
 874             goto err_close;
 875         }
 876     }
 877     if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
 878             || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
 879             || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
 880             /* This bus type is not supported before Windows Server 2003 SP1 */
 881             || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
 882         ) {
 883         /* We are able to use the same ioctls for different bus types
 884          * according to Microsoft docs
 885          * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
 886         g_debug("getting SCSI info");
 887         if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
 888                             sizeof(SCSI_ADDRESS), &len, NULL)) {
 889             disk->unit = addr.Lun;
 890             disk->target = addr.TargetId;
 891             disk->bus = addr.PathId;
 892         }
 893         /* We do not set error in this case, because we still have enough
 894          * information about volume. */
 895     }
 896
 897 err_close:
 898     CloseHandle(disk_h);
 899     return;
 900 }
 901
 902 /* VSS provider works with volumes, thus there is no difference if
 903  * the volume consist of spanned disks. Info about the first disk in the
 904  * volume is returned for the spanned disk group (LVM) */
 905 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 906 {
 907     Error *local_err = NULL;
 908     GuestDiskAddressList *list = NULL;
 909     GuestDiskAddress *disk = NULL;
 910     int i;
 911     HANDLE vol_h;
 912     DWORD size;
 913     PVOLUME_DISK_EXTENTS extents = NULL;
 914
 915     /* strip final backslash */
 916     char *name = g_strdup(guid);
 917     if (g_str_has_suffix(name, "\\")) {
 918         name[strlen(name) - 1] = 0;
 919     }
 920
 921     g_debug("opening %s", name);
 922     vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 923                        0, NULL);
 924     if (vol_h == INVALID_HANDLE_VALUE) {
 925         error_setg_win32(errp, GetLastError(), "failed to open volume");
 926         goto out;
 927     }
 928
 929     /* Get list of extents */
 930     g_debug("getting disk extents");
 931     size = sizeof(VOLUME_DISK_EXTENTS);
 932     extents = g_malloc0(size);
 933     if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
 934                          0, extents, size, &size, NULL)) {
 935         DWORD last_err = GetLastError();
 936         if (last_err == ERROR_MORE_DATA) {
 937             /* Try once more with big enough buffer */
 938             g_free(extents);
 939             extents = g_malloc0(size);
 940             if (!DeviceIoControl(
 941                     vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
 942                     0, extents, size, NULL, NULL)) {
 943                 error_setg_win32(errp, GetLastError(),
 944                     "failed to get disk extents");
 945                 goto out;
 946             }
 947         } else if (last_err == ERROR_INVALID_FUNCTION) {
 948             /* Possibly CD-ROM or a shared drive. Try to pass the volume */
 949             g_debug("volume not on disk");
 950             disk = g_new0(GuestDiskAddress, 1);
 951             disk->dev = g_strdup(name);
 952             get_single_disk_info(0xffffffff, disk, &local_err);
 953             if (local_err) {
 954                 g_debug("failed to get disk info, ignoring error: %s",
 955                     error_get_pretty(local_err));
 956                 error_free(local_err);
 957                 goto out;
 958             }
 959             QAPI_LIST_PREPEND(list, disk);
 960             disk = NULL;
 961             goto out;
 962         } else {
 963             error_setg_win32(errp, GetLastError(),
 964                 "failed to get disk extents");
 965             goto out;
 966         }
 967     }
 968     g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
 969
 970     /* Go through each extent */
 971     for (i = 0; i < extents->NumberOfDiskExtents; i++) {
 972         disk = g_new0(GuestDiskAddress, 1);
 973
 974         /* Disk numbers directly correspond to numbers used in UNCs
 975          *
 976          * See documentation for DISK_EXTENT:
 977          * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
 978          *
 979          * See also Naming Files, Paths and Namespaces:
 980          * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
 981          */
 982         disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
 983                                     extents->Extents[i].DiskNumber);
 984
 985         get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
 986         if (local_err) {
 987             error_propagate(errp, local_err);
 988             goto out;
 989         }
 990         QAPI_LIST_PREPEND(list, disk);
 991         disk = NULL;
 992     }
 993
 994
 995 out:
 996     if (vol_h != INVALID_HANDLE_VALUE) {
 997         CloseHandle(vol_h);
 998     }
 999     qapi_free_GuestDiskAddress(disk);
1000     g_free(extents);
1001     g_free(name);
1002
1003     return list;
1004 }
1005
1006 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
1007 {
1008     GuestDiskInfoList *ret = NULL;
1009     HDEVINFO dev_info;
1010     SP_DEVICE_INTERFACE_DATA dev_iface_data;
1011     int i;
1012
1013     dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
1014         DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
1015     if (dev_info == INVALID_HANDLE_VALUE) {
1016         error_setg_win32(errp, GetLastError(), "failed to get device tree");
1017         return NULL;
1018     }
1019
1020     g_debug("enumerating devices");
1021     dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
1022     for (i = 0;
1023         SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
1024             i, &dev_iface_data);
1025         i++) {
1026         GuestDiskAddress *address = NULL;
1027         GuestDiskInfo *disk = NULL;
1028         Error *local_err = NULL;
1029         g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1030             pdev_iface_detail_data = NULL;
1031         STORAGE_DEVICE_NUMBER sdn;
1032         HANDLE dev_file;
1033         DWORD size = 0;
1034         BOOL result;
1035         int attempt;
1036
1037         g_debug("  getting device path");
1038         for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1039             result = SetupDiGetDeviceInterfaceDetail(dev_info,
1040                 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1041             if (result) {
1042                 break;
1043             }
1044             if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1045                 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1046                     size);
1047                 pdev_iface_detail_data->cbSize =
1048                     sizeof(*pdev_iface_detail_data);
1049             } else {
1050                 g_debug("failed to get device interface details");
1051                 break;
1052             }
1053         }
1054         if (!result) {
1055             g_debug("skipping device");
1056             continue;
1057         }
1058
1059         g_debug("  device: %s", pdev_iface_detail_data->DevicePath);
1060         dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1061             FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1062         if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1063                 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1064             CloseHandle(dev_file);
1065             debug_error("failed to get storage device number");
1066             continue;
1067         }
1068         CloseHandle(dev_file);
1069
1070         disk = g_new0(GuestDiskInfo, 1);
1071         disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1072             sdn.DeviceNumber);
1073
1074         g_debug("  number: %lu", sdn.DeviceNumber);
1075         address = g_new0(GuestDiskAddress, 1);
1076         address->dev = g_strdup(disk->name);
1077         get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1078         if (local_err) {
1079             g_debug("failed to get disk info: %s",
1080                 error_get_pretty(local_err));
1081             error_free(local_err);
1082             qapi_free_GuestDiskAddress(address);
1083             address = NULL;
1084         } else {
1085             disk->address = address;
1086         }
1087
1088         QAPI_LIST_PREPEND(ret, disk);
1089     }
1090
1091     SetupDiDestroyDeviceInfoList(dev_info);
1092     return ret;
1093 }
1094
1095 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
1096 {
1097     DWORD info_size;
1098     char mnt, *mnt_point;
1099     wchar_t wfs_name[32];
1100     char fs_name[32];
1101     wchar_t vol_info[MAX_PATH + 1];
1102     size_t len;
1103     uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1104     GuestFilesystemInfo *fs = NULL;
1105     HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1106
1107     GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1108     if (GetLastError() != ERROR_MORE_DATA) {
1109         error_setg_win32(errp, GetLastError(), "failed to get volume name");
1110         return NULL;
1111     }
1112
1113     mnt_point = g_malloc(info_size + 1);
1114     if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1115                                          &info_size)) {
1116         error_setg_win32(errp, GetLastError(), "failed to get volume name");
1117         goto free;
1118     }
1119
1120     hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1121                                   FILE_ATTRIBUTE_NORMAL |
1122                                   FILE_FLAG_BACKUP_SEMANTICS, NULL);
1123     if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1124         error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1125         goto free;
1126     }
1127
1128     len = strlen(mnt_point);
1129     mnt_point[len] = '\\';
1130     mnt_point[len + 1] = 0;
1131
1132     if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1133                                        sizeof(vol_info), NULL, NULL, NULL,
1134                                        (LPWSTR) & wfs_name, sizeof(wfs_name))) {
1135         if (GetLastError() != ERROR_NOT_READY) {
1136             error_setg_win32(errp, GetLastError(), "failed to get volume info");
1137         }
1138         goto free;
1139     }
1140
1141     fs = g_malloc(sizeof(*fs));
1142     fs->name = g_strdup(guid);
1143     fs->has_total_bytes = false;
1144     fs->has_used_bytes = false;
1145     if (len == 0) {
1146         fs->mountpoint = g_strdup("System Reserved");
1147     } else {
1148         fs->mountpoint = g_strndup(mnt_point, len);
1149         if (GetDiskFreeSpaceEx(fs->mountpoint,
1150                                (PULARGE_INTEGER) & i64FreeBytesToCaller,
1151                                (PULARGE_INTEGER) & i64TotalBytes,
1152                                (PULARGE_INTEGER) & i64FreeBytes)) {
1153             fs->used_bytes = i64TotalBytes - i64FreeBytes;
1154             fs->total_bytes = i64TotalBytes;
1155             fs->has_total_bytes = true;
1156             fs->has_used_bytes = true;
1157         }
1158     }
1159     wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1160     fs->type = g_strdup(fs_name);
1161     fs->disk = build_guest_disk_info(guid, errp);
1162 free:
1163     if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1164         CloseHandle(hLocalDiskHandle);
1165     }
1166     g_free(mnt_point);
1167     return fs;
1168 }
1169
1170 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1171 {
1172     HANDLE vol_h;
1173     GuestFilesystemInfoList *ret = NULL;
1174     char guid[256];
1175
1176     vol_h = FindFirstVolume(guid, sizeof(guid));
1177     if (vol_h == INVALID_HANDLE_VALUE) {
1178         error_setg_win32(errp, GetLastError(), "failed to find any volume");
1179         return NULL;
1180     }
1181
1182     do {
1183         Error *local_err = NULL;
1184         GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1185         if (local_err) {
1186             g_debug("failed to get filesystem info, ignoring error: %s",
1187                     error_get_pretty(local_err));
1188             error_free(local_err);
1189             continue;
1190         }
1191         QAPI_LIST_PREPEND(ret, info);
1192     } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1193
1194     if (GetLastError() != ERROR_NO_MORE_FILES) {
1195         error_setg_win32(errp, GetLastError(), "failed to find next volume");
1196     }
1197
1198     FindVolumeClose(vol_h);
1199     return ret;
1200 }
1201
1202 /*
1203  * Return status of freeze/thaw
1204  */
1205 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1206 {
1207     if (!vss_initialized()) {
1208         error_setg(errp, QERR_UNSUPPORTED);
1209         return 0;
1210     }
1211
1212     if (ga_is_frozen(ga_state)) {
1213         return GUEST_FSFREEZE_STATUS_FROZEN;
1214     }
1215
1216     return GUEST_FSFREEZE_STATUS_THAWED;
1217 }
1218
1219 /*
1220  * Freeze local file systems using Volume Shadow-copy Service.
1221  * The frozen state is limited for up to 10 seconds by VSS.
1222  */
1223 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1224 {
1225     return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1226 }
1227
1228 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1229                                        strList *mountpoints,
1230                                        Error **errp)
1231 {
1232     int i;
1233     Error *local_err = NULL;
1234
1235     if (!vss_initialized()) {
1236         error_setg(errp, QERR_UNSUPPORTED);
1237         return 0;
1238     }
1239
1240     slog("guest-fsfreeze called");
1241
1242     /* cannot risk guest agent blocking itself on a write in this state */
1243     ga_set_frozen(ga_state);
1244
1245     qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1246     if (local_err) {
1247         error_propagate(errp, local_err);
1248         goto error;
1249     }
1250
1251     return i;
1252
1253 error:
1254     local_err = NULL;
1255     qmp_guest_fsfreeze_thaw(&local_err);
1256     if (local_err) {
1257         g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1258         error_free(local_err);
1259     }
1260     return 0;
1261 }
1262
1263 /*
1264  * Thaw local file systems using Volume Shadow-copy Service.
1265  */
1266 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1267 {
1268     int i;
1269
1270     if (!vss_initialized()) {
1271         error_setg(errp, QERR_UNSUPPORTED);
1272         return 0;
1273     }
1274
1275     qga_vss_fsfreeze(&i, false, NULL, errp);
1276
1277     ga_unset_frozen(ga_state);
1278     return i;
1279 }
1280
1281 static void guest_fsfreeze_cleanup(void)
1282 {
1283     Error *err = NULL;
1284
1285     if (!vss_initialized()) {
1286         return;
1287     }
1288
1289     if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1290         qmp_guest_fsfreeze_thaw(&err);
1291         if (err) {
1292             slog("failed to clean up frozen filesystems: %s",
1293                  error_get_pretty(err));
1294             error_free(err);
1295         }
1296     }
1297
1298     vss_deinit(true);
1299 }
1300
1301 /*
1302  * Walk list of mounted file systems in the guest, and discard unused
1303  * areas.
1304  */
1305 GuestFilesystemTrimResponse *
1306 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1307 {
1308     GuestFilesystemTrimResponse *resp;
1309     HANDLE handle;
1310     WCHAR guid[MAX_PATH] = L"";
1311     OSVERSIONINFO osvi;
1312     BOOL win8_or_later;
1313
1314     ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1315     osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1316     GetVersionEx(&osvi);
1317     win8_or_later = (osvi.dwMajorVersion > 6 ||
1318                           ((osvi.dwMajorVersion == 6) &&
1319                            (osvi.dwMinorVersion >= 2)));
1320     if (!win8_or_later) {
1321         error_setg(errp, "fstrim is only supported for Win8+");
1322         return NULL;
1323     }
1324
1325     handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1326     if (handle == INVALID_HANDLE_VALUE) {
1327         error_setg_win32(errp, GetLastError(), "failed to find any volume");
1328         return NULL;
1329     }
1330
1331     resp = g_new0(GuestFilesystemTrimResponse, 1);
1332
1333     do {
1334         GuestFilesystemTrimResult *res;
1335         PWCHAR uc_path;
1336         DWORD char_count = 0;
1337         char *path, *out;
1338         GError *gerr = NULL;
1339         gchar *argv[4];
1340
1341         GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1342
1343         if (GetLastError() != ERROR_MORE_DATA) {
1344             continue;
1345         }
1346         if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1347             continue;
1348         }
1349
1350         uc_path = g_new(WCHAR, char_count);
1351         if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1352                                               &char_count) || !*uc_path) {
1353             /* strange, but this condition could be faced even with size == 2 */
1354             g_free(uc_path);
1355             continue;
1356         }
1357
1358         res = g_new0(GuestFilesystemTrimResult, 1);
1359
1360         path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1361
1362         g_free(uc_path);
1363
1364         if (!path) {
1365             res->error = g_strdup(gerr->message);
1366             g_error_free(gerr);
1367             break;
1368         }
1369
1370         res->path = path;
1371
1372         QAPI_LIST_PREPEND(resp->paths, res);
1373
1374         memset(argv, 0, sizeof(argv));
1375         argv[0] = (gchar *)"defrag.exe";
1376         argv[1] = (gchar *)"/L";
1377         argv[2] = path;
1378
1379         if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1380                           &out /* stdout */, NULL /* stdin */,
1381                           NULL, &gerr)) {
1382             res->error = g_strdup(gerr->message);
1383             g_error_free(gerr);
1384         } else {
1385             /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1386                Error is reported in the output with something like
1387                (x89000020) etc code in the stdout */
1388
1389             int i;
1390             gchar **lines = g_strsplit(out, "\r\n", 0);
1391             g_free(out);
1392
1393             for (i = 0; lines[i] != NULL; i++) {
1394                 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1395                     continue;
1396                 }
1397                 res->error = g_strdup(lines[i]);
1398                 break;
1399             }
1400             g_strfreev(lines);
1401         }
1402     } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1403
1404     FindVolumeClose(handle);
1405     return resp;
1406 }
1407
1408 typedef enum {
1409     GUEST_SUSPEND_MODE_DISK,
1410     GUEST_SUSPEND_MODE_RAM
1411 } GuestSuspendMode;
1412
1413 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1414 {
1415     SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1416
1417     ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1418     if (!GetPwrCapabilities(&sys_pwr_caps)) {
1419         error_setg(errp, QERR_QGA_COMMAND_FAILED,
1420                    "failed to determine guest suspend capabilities");
1421         return;
1422     }
1423
1424     switch (mode) {
1425     case GUEST_SUSPEND_MODE_DISK:
1426         if (!sys_pwr_caps.SystemS4) {
1427             error_setg(errp, QERR_QGA_COMMAND_FAILED,
1428                        "suspend-to-disk not supported by OS");
1429         }
1430         break;
1431     case GUEST_SUSPEND_MODE_RAM:
1432         if (!sys_pwr_caps.SystemS3) {
1433             error_setg(errp, QERR_QGA_COMMAND_FAILED,
1434                        "suspend-to-ram not supported by OS");
1435         }
1436         break;
1437     default:
1438         abort();
1439     }
1440 }
1441
1442 static DWORD WINAPI do_suspend(LPVOID opaque)
1443 {
1444     GuestSuspendMode *mode = opaque;
1445     DWORD ret = 0;
1446
1447     if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1448         g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1449         slog("failed to suspend guest: %s", emsg);
1450         ret = -1;
1451     }
1452     g_free(mode);
1453     return ret;
1454 }
1455
1456 void qmp_guest_suspend_disk(Error **errp)
1457 {
1458     Error *local_err = NULL;
1459     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1460
1461     *mode = GUEST_SUSPEND_MODE_DISK;
1462     check_suspend_mode(*mode, &local_err);
1463     if (local_err) {
1464         goto out;
1465     }
1466     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1467     if (local_err) {
1468         goto out;
1469     }
1470     execute_async(do_suspend, mode, &local_err);
1471
1472 out:
1473     if (local_err) {
1474         error_propagate(errp, local_err);
1475         g_free(mode);
1476     }
1477 }
1478
1479 void qmp_guest_suspend_ram(Error **errp)
1480 {
1481     Error *local_err = NULL;
1482     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1483
1484     *mode = GUEST_SUSPEND_MODE_RAM;
1485     check_suspend_mode(*mode, &local_err);
1486     if (local_err) {
1487         goto out;
1488     }
1489     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1490     if (local_err) {
1491         goto out;
1492     }
1493     execute_async(do_suspend, mode, &local_err);
1494
1495 out:
1496     if (local_err) {
1497         error_propagate(errp, local_err);
1498         g_free(mode);
1499     }
1500 }
1501
1502 void qmp_guest_suspend_hybrid(Error **errp)
1503 {
1504     error_setg(errp, QERR_UNSUPPORTED);
1505 }
1506
1507 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1508 {
1509     IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1510     ULONG adptr_addrs_len = 0;
1511     DWORD ret;
1512
1513     /* Call the first time to get the adptr_addrs_len. */
1514     GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1515                          NULL, adptr_addrs, &adptr_addrs_len);
1516
1517     adptr_addrs = g_malloc(adptr_addrs_len);
1518     ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1519                                NULL, adptr_addrs, &adptr_addrs_len);
1520     if (ret != ERROR_SUCCESS) {
1521         error_setg_win32(errp, ret, "failed to get adapters addresses");
1522         g_free(adptr_addrs);
1523         adptr_addrs = NULL;
1524     }
1525     return adptr_addrs;
1526 }
1527
1528 static char *guest_wctomb_dup(WCHAR *wstr)
1529 {
1530     char *str;
1531     size_t str_size;
1532
1533     str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1534     /* add 1 to str_size for NULL terminator */
1535     str = g_malloc(str_size + 1);
1536     WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1537     return str;
1538 }
1539
1540 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1541                                Error **errp)
1542 {
1543     char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1544     DWORD len;
1545     int ret;
1546
1547     if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1548             ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1549         len = sizeof(addr_str);
1550         ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1551                                  ip_addr->Address.iSockaddrLength,
1552                                  NULL,
1553                                  addr_str,
1554                                  &len);
1555         if (ret != 0) {
1556             error_setg_win32(errp, WSAGetLastError(),
1557                 "failed address presentation form conversion");
1558             return NULL;
1559         }
1560         return g_strdup(addr_str);
1561     }
1562     return NULL;
1563 }
1564
1565 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1566 {
1567     /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1568      * field to obtain the prefix.
1569      */
1570     return ip_addr->OnLinkPrefixLength;
1571 }
1572
1573 #define INTERFACE_PATH_BUF_SZ 512
1574
1575 static DWORD get_interface_index(const char *guid)
1576 {
1577     ULONG index;
1578     DWORD status;
1579     wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1580     snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1581     wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1582     status = GetAdapterIndex (wbuf, &index);
1583     if (status != NO_ERROR) {
1584         return (DWORD)~0;
1585     } else {
1586         return index;
1587     }
1588 }
1589
1590 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1591
1592 static int guest_get_network_stats(const char *name,
1593                                    GuestNetworkInterfaceStat *stats)
1594 {
1595     OSVERSIONINFO os_ver;
1596
1597     os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1598     GetVersionEx(&os_ver);
1599     if (os_ver.dwMajorVersion >= 6) {
1600         MIB_IF_ROW2 a_mid_ifrow;
1601         GetIfEntry2Func getifentry2_ex;
1602         DWORD if_index = 0;
1603         HMODULE module = GetModuleHandle("iphlpapi");
1604         PVOID func = GetProcAddress(module, "GetIfEntry2");
1605
1606         if (func == NULL) {
1607             return -1;
1608         }
1609
1610         getifentry2_ex = (GetIfEntry2Func)func;
1611         if_index = get_interface_index(name);
1612         if (if_index == (DWORD)~0) {
1613             return -1;
1614         }
1615
1616         memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1617         a_mid_ifrow.InterfaceIndex = if_index;
1618         if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1619             stats->rx_bytes = a_mid_ifrow.InOctets;
1620             stats->rx_packets = a_mid_ifrow.InUcastPkts;
1621             stats->rx_errs = a_mid_ifrow.InErrors;
1622             stats->rx_dropped = a_mid_ifrow.InDiscards;
1623             stats->tx_bytes = a_mid_ifrow.OutOctets;
1624             stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1625             stats->tx_errs = a_mid_ifrow.OutErrors;
1626             stats->tx_dropped = a_mid_ifrow.OutDiscards;
1627             return 0;
1628         }
1629     }
1630     return -1;
1631 }
1632
1633 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1634 {
1635     IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1636     IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1637     GuestNetworkInterfaceList *head = NULL, **tail = &head;
1638     GuestIpAddressList *head_addr, **tail_addr;
1639     GuestNetworkInterface *info;
1640     GuestNetworkInterfaceStat *interface_stat = NULL;
1641     GuestIpAddress *address_item = NULL;
1642     unsigned char *mac_addr;
1643     char *addr_str;
1644     WORD wsa_version;
1645     WSADATA wsa_data;
1646     int ret;
1647
1648     adptr_addrs = guest_get_adapters_addresses(errp);
1649     if (adptr_addrs == NULL) {
1650         return NULL;
1651     }
1652
1653     /* Make WSA APIs available. */
1654     wsa_version = MAKEWORD(2, 2);
1655     ret = WSAStartup(wsa_version, &wsa_data);
1656     if (ret != 0) {
1657         error_setg_win32(errp, ret, "failed socket startup");
1658         goto out;
1659     }
1660
1661     for (addr = adptr_addrs; addr; addr = addr->Next) {
1662         info = g_malloc0(sizeof(*info));
1663
1664         QAPI_LIST_APPEND(tail, info);
1665
1666         info->name = guest_wctomb_dup(addr->FriendlyName);
1667
1668         if (addr->PhysicalAddressLength != 0) {
1669             mac_addr = addr->PhysicalAddress;
1670
1671             info->hardware_address =
1672                 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1673                                 (int) mac_addr[0], (int) mac_addr[1],
1674                                 (int) mac_addr[2], (int) mac_addr[3],
1675                                 (int) mac_addr[4], (int) mac_addr[5]);
1676         }
1677
1678         head_addr = NULL;
1679         tail_addr = &head_addr;
1680         for (ip_addr = addr->FirstUnicastAddress;
1681                 ip_addr;
1682                 ip_addr = ip_addr->Next) {
1683             addr_str = guest_addr_to_str(ip_addr, errp);
1684             if (addr_str == NULL) {
1685                 continue;
1686             }
1687
1688             address_item = g_malloc0(sizeof(*address_item));
1689
1690             QAPI_LIST_APPEND(tail_addr, address_item);
1691
1692             address_item->ip_address = addr_str;
1693             address_item->prefix = guest_ip_prefix(ip_addr);
1694             if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1695                 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1696             } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1697                 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1698             }
1699         }
1700         if (head_addr) {
1701             info->has_ip_addresses = true;
1702             info->ip_addresses = head_addr;
1703         }
1704         if (!info->statistics) {
1705             interface_stat = g_malloc0(sizeof(*interface_stat));
1706             if (guest_get_network_stats(addr->AdapterName, interface_stat)
1707                 == -1) {
1708                 g_free(interface_stat);
1709             } else {
1710                 info->statistics = interface_stat;
1711             }
1712         }
1713     }
1714     WSACleanup();
1715 out:
1716     g_free(adptr_addrs);
1717     return head;
1718 }
1719
1720 static int64_t filetime_to_ns(const FILETIME *tf)
1721 {
1722     return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime)
1723             - W32_FT_OFFSET) * 100;
1724 }
1725
1726 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1727 {
1728     Error *local_err = NULL;
1729     SYSTEMTIME ts;
1730     FILETIME tf;
1731     LONGLONG time;
1732
1733     if (!has_time) {
1734         /* Unfortunately, Windows libraries don't provide an easy way to access
1735          * RTC yet:
1736          *
1737          * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1738          *
1739          * Instead, a workaround is to use the Windows win32tm command to
1740          * resync the time using the Windows Time service.
1741          */
1742         LPVOID msg_buffer;
1743         DWORD ret_flags;
1744
1745         HRESULT hr = system("w32tm /resync /nowait");
1746
1747         if (GetLastError() != 0) {
1748             strerror_s((LPTSTR) & msg_buffer, 0, errno);
1749             error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1750         } else if (hr != 0) {
1751             if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1752                 error_setg(errp, "Windows Time service not running on the "
1753                                  "guest");
1754             } else {
1755                 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1756                                    FORMAT_MESSAGE_FROM_SYSTEM |
1757                                    FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1758                                    (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1759                                    SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1760                                    NULL)) {
1761                     error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1762                                      "t retrieve error message", hr);
1763                 } else {
1764                     error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1765                                (LPCTSTR)msg_buffer);
1766                     LocalFree(msg_buffer);
1767                 }
1768             }
1769         } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1770             error_setg(errp, "No internet connection on guest, sync not "
1771                              "accurate");
1772         }
1773         return;
1774     }
1775
1776     /* Validate time passed by user. */
1777     if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1778         error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1779         return;
1780     }
1781
1782     time = time_ns / 100 + W32_FT_OFFSET;
1783
1784     tf.dwLowDateTime = (DWORD) time;
1785     tf.dwHighDateTime = (DWORD) (time >> 32);
1786
1787     if (!FileTimeToSystemTime(&tf, &ts)) {
1788         error_setg(errp, "Failed to convert system time %d",
1789                    (int)GetLastError());
1790         return;
1791     }
1792
1793     acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1794     if (local_err) {
1795         error_propagate(errp, local_err);
1796         return;
1797     }
1798
1799     if (!SetSystemTime(&ts)) {
1800         error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1801         return;
1802     }
1803 }
1804
1805 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1806 {
1807     PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1808     DWORD length;
1809     GuestLogicalProcessorList *head, **tail;
1810     Error *local_err = NULL;
1811     int64_t current;
1812
1813     ptr = pslpi = NULL;
1814     length = 0;
1815     current = 0;
1816     head = NULL;
1817     tail = &head;
1818
1819     if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1820         (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1821         (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1822         ptr = pslpi = g_malloc0(length);
1823         if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1824             error_setg(&local_err, "Failed to get processor information: %d",
1825                        (int)GetLastError());
1826         }
1827     } else {
1828         error_setg(&local_err,
1829                    "Failed to get processor information buffer length: %d",
1830                    (int)GetLastError());
1831     }
1832
1833     while ((local_err == NULL) && (length > 0)) {
1834         if (pslpi->Relationship == RelationProcessorCore) {
1835             ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1836
1837             while (cpu_bits > 0) {
1838                 if (!!(cpu_bits & 1)) {
1839                     GuestLogicalProcessor *vcpu;
1840
1841                     vcpu = g_malloc0(sizeof *vcpu);
1842                     vcpu->logical_id = current++;
1843                     vcpu->online = true;
1844                     vcpu->has_can_offline = true;
1845
1846                     QAPI_LIST_APPEND(tail, vcpu);
1847                 }
1848                 cpu_bits >>= 1;
1849             }
1850         }
1851         length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1852         pslpi++; /* next entry */
1853     }
1854
1855     g_free(ptr);
1856
1857     if (local_err == NULL) {
1858         if (head != NULL) {
1859             return head;
1860         }
1861         /* there's no guest with zero VCPUs */
1862         error_setg(&local_err, "Guest reported zero VCPUs");
1863     }
1864
1865     qapi_free_GuestLogicalProcessorList(head);
1866     error_propagate(errp, local_err);
1867     return NULL;
1868 }
1869
1870 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1871 {
1872     error_setg(errp, QERR_UNSUPPORTED);
1873     return -1;
1874 }
1875
1876 static gchar *
1877 get_net_error_message(gint error)
1878 {
1879     HMODULE module = NULL;
1880     gchar *retval = NULL;
1881     wchar_t *msg = NULL;
1882     int flags;
1883     size_t nchars;
1884
1885     flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1886         FORMAT_MESSAGE_IGNORE_INSERTS |
1887         FORMAT_MESSAGE_FROM_SYSTEM;
1888
1889     if (error >= NERR_BASE && error <= MAX_NERR) {
1890         module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1891
1892         if (module != NULL) {
1893             flags |= FORMAT_MESSAGE_FROM_HMODULE;
1894         }
1895     }
1896
1897     FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1898
1899     if (msg != NULL) {
1900         nchars = wcslen(msg);
1901
1902         if (nchars >= 2 &&
1903             msg[nchars - 1] == L'\n' &&
1904             msg[nchars - 2] == L'\r') {
1905             msg[nchars - 2] = L'\0';
1906         }
1907
1908         retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1909
1910         LocalFree(msg);
1911     }
1912
1913     if (module != NULL) {
1914         FreeLibrary(module);
1915     }
1916
1917     return retval;
1918 }
1919
1920 void qmp_guest_set_user_password(const char *username,
1921                                  const char *password,
1922                                  bool crypted,
1923                                  Error **errp)
1924 {
1925     NET_API_STATUS nas;
1926     char *rawpasswddata = NULL;
1927     size_t rawpasswdlen;
1928     wchar_t *user = NULL, *wpass = NULL;
1929     USER_INFO_1003 pi1003 = { 0, };
1930     GError *gerr = NULL;
1931
1932     if (crypted) {
1933         error_setg(errp, QERR_UNSUPPORTED);
1934         return;
1935     }
1936
1937     rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1938     if (!rawpasswddata) {
1939         return;
1940     }
1941     rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1942     rawpasswddata[rawpasswdlen] = '\0';
1943
1944     user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1945     if (!user) {
1946         goto done;
1947     }
1948
1949     wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1950     if (!wpass) {
1951         goto done;
1952     }
1953
1954     pi1003.usri1003_password = wpass;
1955     nas = NetUserSetInfo(NULL, user,
1956                          1003, (LPBYTE)&pi1003,
1957                          NULL);
1958
1959     if (nas != NERR_Success) {
1960         gchar *msg = get_net_error_message(nas);
1961         error_setg(errp, "failed to set password: %s", msg);
1962         g_free(msg);
1963     }
1964
1965 done:
1966     if (gerr) {
1967         error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1968         g_error_free(gerr);
1969     }
1970     g_free(user);
1971     g_free(wpass);
1972     g_free(rawpasswddata);
1973 }
1974
1975 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1976 {
1977     error_setg(errp, QERR_UNSUPPORTED);
1978     return NULL;
1979 }
1980
1981 GuestMemoryBlockResponseList *
1982 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1983 {
1984     error_setg(errp, QERR_UNSUPPORTED);
1985     return NULL;
1986 }
1987
1988 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1989 {
1990     error_setg(errp, QERR_UNSUPPORTED);
1991     return NULL;
1992 }
1993
1994 /* add unsupported commands to the list of blocked RPCs */
1995 GList *ga_command_init_blockedrpcs(GList *blockedrpcs)
1996 {
1997     const char *list_unsupported[] = {
1998         "guest-suspend-hybrid",
1999         "guest-set-vcpus",
2000         "guest-get-memory-blocks", "guest-set-memory-blocks",
2001         "guest-get-memory-block-size", "guest-get-memory-block-info",
2002         NULL};
2003     char **p = (char **)list_unsupported;
2004
2005     while (*p) {
2006         blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2007     }
2008
2009     if (!vss_init(true)) {
2010         g_debug("vss_init failed, vss commands are going to be disabled");
2011         const char *list[] = {
2012             "guest-get-fsinfo", "guest-fsfreeze-status",
2013             "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
2014         p = (char **)list;
2015
2016         while (*p) {
2017             blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2018         }
2019     }
2020
2021     return blockedrpcs;
2022 }
2023
2024 /* register init/cleanup routines for stateful command groups */
2025 void ga_command_state_init(GAState *s, GACommandState *cs)
2026 {
2027     if (!vss_initialized()) {
2028         ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
2029     }
2030 }
2031
2032 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
2033 typedef struct _GA_WTSINFOA {
2034     WTS_CONNECTSTATE_CLASS State;
2035     DWORD SessionId;
2036     DWORD IncomingBytes;
2037     DWORD OutgoingBytes;
2038     DWORD IncomingFrames;
2039     DWORD OutgoingFrames;
2040     DWORD IncomingCompressedBytes;
2041     DWORD OutgoingCompressedBy;
2042     CHAR WinStationName[WINSTATIONNAME_LENGTH];
2043     CHAR Domain[DOMAIN_LENGTH];
2044     CHAR UserName[USERNAME_LENGTH + 1];
2045     LARGE_INTEGER ConnectTime;
2046     LARGE_INTEGER DisconnectTime;
2047     LARGE_INTEGER LastInputTime;
2048     LARGE_INTEGER LogonTime;
2049     LARGE_INTEGER CurrentTime;
2050
2051 } GA_WTSINFOA;
2052
2053 GuestUserList *qmp_guest_get_users(Error **errp)
2054 {
2055 #define QGA_NANOSECONDS 10000000
2056
2057     GHashTable *cache = NULL;
2058     GuestUserList *head = NULL, **tail = &head;
2059
2060     DWORD buffer_size = 0, count = 0, i = 0;
2061     GA_WTSINFOA *info = NULL;
2062     WTS_SESSION_INFOA *entries = NULL;
2063     GuestUser *user = NULL;
2064     gpointer value = NULL;
2065     INT64 login = 0;
2066     double login_time = 0;
2067
2068     cache = g_hash_table_new(g_str_hash, g_str_equal);
2069
2070     if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2071         for (i = 0; i < count; ++i) {
2072             buffer_size = 0;
2073             info = NULL;
2074             if (WTSQuerySessionInformationA(
2075                 NULL,
2076                 entries[i].SessionId,
2077                 WTSSessionInfo,
2078                 (LPSTR *)&info,
2079                 &buffer_size
2080             )) {
2081
2082                 if (strlen(info->UserName) == 0) {
2083                     WTSFreeMemory(info);
2084                     continue;
2085                 }
2086
2087                 login = info->LogonTime.QuadPart;
2088                 login -= W32_FT_OFFSET;
2089                 login_time = ((double)login) / QGA_NANOSECONDS;
2090
2091                 if (g_hash_table_contains(cache, info->UserName)) {
2092                     value = g_hash_table_lookup(cache, info->UserName);
2093                     user = (GuestUser *)value;
2094                     if (user->login_time > login_time) {
2095                         user->login_time = login_time;
2096                     }
2097                 } else {
2098                     user = g_new0(GuestUser, 1);
2099
2100                     user->user = g_strdup(info->UserName);
2101                     user->domain = g_strdup(info->Domain);
2102
2103                     user->login_time = login_time;
2104
2105                     g_hash_table_add(cache, user->user);
2106
2107                     QAPI_LIST_APPEND(tail, user);
2108                 }
2109             }
2110             WTSFreeMemory(info);
2111         }
2112         WTSFreeMemory(entries);
2113     }
2114     g_hash_table_destroy(cache);
2115     return head;
2116 }
2117
2118 typedef struct _ga_matrix_lookup_t {
2119     int major;
2120     int minor;
2121     char const *version;
2122     char const *version_id;
2123 } ga_matrix_lookup_t;
2124
2125 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = {
2126     {
2127         /* Desktop editions */
2128         { 5, 0, "Microsoft Windows 2000",   "2000"},
2129         { 5, 1, "Microsoft Windows XP",     "xp"},
2130         { 6, 0, "Microsoft Windows Vista",  "vista"},
2131         { 6, 1, "Microsoft Windows 7"       "7"},
2132         { 6, 2, "Microsoft Windows 8",      "8"},
2133         { 6, 3, "Microsoft Windows 8.1",    "8.1"},
2134         { 0, 0, 0}
2135     },{
2136         /* Server editions */
2137         { 5, 2, "Microsoft Windows Server 2003",        "2003"},
2138         { 6, 0, "Microsoft Windows Server 2008",        "2008"},
2139         { 6, 1, "Microsoft Windows Server 2008 R2",     "2008r2"},
2140         { 6, 2, "Microsoft Windows Server 2012",        "2012"},
2141         { 6, 3, "Microsoft Windows Server 2012 R2",     "2012r2"},
2142         { 0, 0, 0},
2143         { 0, 0, 0}
2144     }
2145 };
2146
2147 typedef struct _ga_win_10_0_t {
2148     int first_build;
2149     char const *version;
2150     char const *version_id;
2151 } ga_win_10_0_t;
2152
2153 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = {
2154     {14393, "Microsoft Windows Server 2016",    "2016"},
2155     {17763, "Microsoft Windows Server 2019",    "2019"},
2156     {20344, "Microsoft Windows Server 2022",    "2022"},
2157     {0, 0}
2158 };
2159
2160 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = {
2161     {10240, "Microsoft Windows 10",    "10"},
2162     {22000, "Microsoft Windows 11",    "11"},
2163     {0, 0}
2164 };
2165
2166 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2167 {
2168     typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2169         RTL_OSVERSIONINFOEXW *os_version_info_ex);
2170
2171     info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2172
2173     HMODULE module = GetModuleHandle("ntdll");
2174     PVOID fun = GetProcAddress(module, "RtlGetVersion");
2175     if (fun == NULL) {
2176         error_setg(errp, QERR_QGA_COMMAND_FAILED,
2177             "Failed to get address of RtlGetVersion");
2178         return;
2179     }
2180
2181     rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2182     rtl_get_version(info);
2183     return;
2184 }
2185
2186 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
2187 {
2188     DWORD major = os_version->dwMajorVersion;
2189     DWORD minor = os_version->dwMinorVersion;
2190     DWORD build = os_version->dwBuildNumber;
2191     int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2192     ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
2193     ga_win_10_0_t const *win_10_0_table = tbl_idx ?
2194         WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX;
2195     ga_win_10_0_t const *win_10_0_version = NULL;
2196     while (table->version != NULL) {
2197         if (major == 10 && minor == 0) {
2198             while (win_10_0_table->version != NULL) {
2199                 if (build >= win_10_0_table->first_build) {
2200                     win_10_0_version = win_10_0_table;
2201                 }
2202                 win_10_0_table++;
2203             }
2204             if (win_10_0_table) {
2205                 if (id) {
2206                     return g_strdup(win_10_0_version->version_id);
2207                 } else {
2208                     return g_strdup(win_10_0_version->version);
2209                 }
2210             }
2211         } else if (major == table->major && minor == table->minor) {
2212             if (id) {
2213                 return g_strdup(table->version_id);
2214             } else {
2215                 return g_strdup(table->version);
2216             }
2217         }
2218         ++table;
2219     }
2220     slog("failed to lookup Windows version: major=%lu, minor=%lu",
2221         major, minor);
2222     return g_strdup("N/A");
2223 }
2224
2225 static char *ga_get_win_product_name(Error **errp)
2226 {
2227     HKEY key = INVALID_HANDLE_VALUE;
2228     DWORD size = 128;
2229     char *result = g_malloc0(size);
2230     LONG err = ERROR_SUCCESS;
2231
2232     err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2233                       "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2234                       &key);
2235     if (err != ERROR_SUCCESS) {
2236         error_setg_win32(errp, err, "failed to open registry key");
2237         g_free(result);
2238         return NULL;
2239     }
2240
2241     err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2242                             (LPBYTE)result, &size);
2243     if (err == ERROR_MORE_DATA) {
2244         slog("ProductName longer than expected (%lu bytes), retrying",
2245                 size);
2246         g_free(result);
2247         result = NULL;
2248         if (size > 0) {
2249             result = g_malloc0(size);
2250             err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2251                                     (LPBYTE)result, &size);
2252         }
2253     }
2254     if (err != ERROR_SUCCESS) {
2255         error_setg_win32(errp, err, "failed to retrieve ProductName");
2256         goto fail;
2257     }
2258
2259     RegCloseKey(key);
2260     return result;
2261
2262 fail:
2263     if (key != INVALID_HANDLE_VALUE) {
2264         RegCloseKey(key);
2265     }
2266     g_free(result);
2267     return NULL;
2268 }
2269
2270 static char *ga_get_current_arch(void)
2271 {
2272     SYSTEM_INFO info;
2273     GetNativeSystemInfo(&info);
2274     char *result = NULL;
2275     switch (info.wProcessorArchitecture) {
2276     case PROCESSOR_ARCHITECTURE_AMD64:
2277         result = g_strdup("x86_64");
2278         break;
2279     case PROCESSOR_ARCHITECTURE_ARM:
2280         result = g_strdup("arm");
2281         break;
2282     case PROCESSOR_ARCHITECTURE_IA64:
2283         result = g_strdup("ia64");
2284         break;
2285     case PROCESSOR_ARCHITECTURE_INTEL:
2286         result = g_strdup("x86");
2287         break;
2288     case PROCESSOR_ARCHITECTURE_UNKNOWN:
2289     default:
2290         slog("unknown processor architecture 0x%0x",
2291             info.wProcessorArchitecture);
2292         result = g_strdup("unknown");
2293         break;
2294     }
2295     return result;
2296 }
2297
2298 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
2299 {
2300     Error *local_err = NULL;
2301     OSVERSIONINFOEXW os_version = {0};
2302     bool server;
2303     char *product_name;
2304     GuestOSInfo *info;
2305
2306     ga_get_win_version(&os_version, &local_err);
2307     if (local_err) {
2308         error_propagate(errp, local_err);
2309         return NULL;
2310     }
2311
2312     server = os_version.wProductType != VER_NT_WORKSTATION;
2313     product_name = ga_get_win_product_name(errp);
2314     if (product_name == NULL) {
2315         return NULL;
2316     }
2317
2318     info = g_new0(GuestOSInfo, 1);
2319
2320     info->kernel_version = g_strdup_printf("%lu.%lu",
2321         os_version.dwMajorVersion,
2322         os_version.dwMinorVersion);
2323     info->kernel_release = g_strdup_printf("%lu",
2324         os_version.dwBuildNumber);
2325     info->machine = ga_get_current_arch();
2326
2327     info->id = g_strdup("mswindows");
2328     info->name = g_strdup("Microsoft Windows");
2329     info->pretty_name = product_name;
2330     info->version = ga_get_win_name(&os_version, false);
2331     info->version_id = ga_get_win_name(&os_version, true);
2332     info->variant = g_strdup(server ? "server" : "client");
2333     info->variant_id = g_strdup(server ? "server" : "client");
2334
2335     return info;
2336 }
2337
2338 /*
2339  * Safely get device property. Returned strings are using wide characters.
2340  * Caller is responsible for freeing the buffer.
2341  */
2342 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2343     PDEVPROPTYPE propType)
2344 {
2345     CONFIGRET cr;
2346     g_autofree LPBYTE buffer = NULL;
2347     ULONG buffer_len = 0;
2348
2349     /* First query for needed space */
2350     cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2351         buffer, &buffer_len, 0);
2352     if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2353
2354         slog("failed to get property size, error=0x%lx", cr);
2355         return NULL;
2356     }
2357     buffer = g_new0(BYTE, buffer_len + 1);
2358     cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2359         buffer, &buffer_len, 0);
2360     if (cr != CR_SUCCESS) {
2361         slog("failed to get device property, error=0x%lx", cr);
2362         return NULL;
2363     }
2364     return g_steal_pointer(&buffer);
2365 }
2366
2367 static GStrv ga_get_hardware_ids(DEVINST devInstance)
2368 {
2369     GArray *values = NULL;
2370     DEVPROPTYPE cm_type;
2371     LPWSTR id;
2372     g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2373         &qga_DEVPKEY_Device_HardwareIds, &cm_type);
2374     if (property == NULL) {
2375         slog("failed to get hardware IDs");
2376         return NULL;
2377     }
2378     if (*property == '\0') {
2379         /* empty list */
2380         return NULL;
2381     }
2382     values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2383     for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2384         gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2385         g_array_append_val(values, id8);
2386     }
2387     return (GStrv)g_array_free(values, FALSE);
2388 }
2389
2390 /*
2391  * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2392  */
2393 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
2394
2395 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
2396 {
2397     GuestDeviceInfoList *head = NULL, **tail = &head;
2398     HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2399     SP_DEVINFO_DATA dev_info_data;
2400     int i, j;
2401     GError *gerr = NULL;
2402     g_autoptr(GRegex) device_pci_re = NULL;
2403     DEVPROPTYPE cm_type;
2404
2405     device_pci_re = g_regex_new(DEVICE_PCI_RE,
2406         G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
2407         &gerr);
2408     g_assert(device_pci_re != NULL);
2409
2410     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2411     dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
2412     if (dev_info == INVALID_HANDLE_VALUE) {
2413         error_setg(errp, "failed to get device tree");
2414         return NULL;
2415     }
2416
2417     slog("enumerating devices");
2418     for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2419         bool skip = true;
2420         g_autofree LPWSTR name = NULL;
2421         g_autofree LPFILETIME date = NULL;
2422         g_autofree LPWSTR version = NULL;
2423         g_auto(GStrv) hw_ids = NULL;
2424         g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2425         g_autofree char *vendor_id = NULL;
2426         g_autofree char *device_id = NULL;
2427
2428         name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2429             &qga_DEVPKEY_NAME, &cm_type);
2430         if (name == NULL) {
2431             slog("failed to get device description");
2432             continue;
2433         }
2434         device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2435         if (device->driver_name == NULL) {
2436             error_setg(errp, "conversion to utf8 failed (driver name)");
2437             return NULL;
2438         }
2439         slog("querying device: %s", device->driver_name);
2440         hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2441         if (hw_ids == NULL) {
2442             continue;
2443         }
2444         for (j = 0; hw_ids[j] != NULL; j++) {
2445             g_autoptr(GMatchInfo) match_info;
2446             GuestDeviceIdPCI *id;
2447             if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2448                 continue;
2449             }
2450             skip = false;
2451
2452             vendor_id = g_match_info_fetch(match_info, 1);
2453             device_id = g_match_info_fetch(match_info, 2);
2454
2455             device->id = g_new0(GuestDeviceId, 1);
2456             device->id->type = GUEST_DEVICE_TYPE_PCI;
2457             id = &device->id->u.pci;
2458             id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2459             id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2460
2461             break;
2462         }
2463         if (skip) {
2464             continue;
2465         }
2466
2467         version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2468             &qga_DEVPKEY_Device_DriverVersion, &cm_type);
2469         if (version == NULL) {
2470             slog("failed to get driver version");
2471             continue;
2472         }
2473         device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2474             NULL, NULL);
2475         if (device->driver_version == NULL) {
2476             error_setg(errp, "conversion to utf8 failed (driver version)");
2477             return NULL;
2478         }
2479
2480         date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2481             &qga_DEVPKEY_Device_DriverDate, &cm_type);
2482         if (date == NULL) {
2483             slog("failed to get driver date");
2484             continue;
2485         }
2486         device->driver_date = filetime_to_ns(date);
2487         device->has_driver_date = true;
2488
2489         slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2490              device->driver_name, device->driver_date,
2491              device->driver_version);
2492         QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2493     }
2494
2495     if (dev_info != INVALID_HANDLE_VALUE) {
2496         SetupDiDestroyDeviceInfoList(dev_info);
2497     }
2498     return head;
2499 }
2500
2501 char *qga_get_host_name(Error **errp)
2502 {
2503     wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
2504     DWORD size = G_N_ELEMENTS(tmp);
2505
2506     if (GetComputerNameW(tmp, &size) == 0) {
2507         error_setg_win32(errp, GetLastError(), "failed close handle");
2508         return NULL;
2509     }
2510
2511     return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL);
2512 }
2513
2514 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
2515 {
2516     error_setg(errp, QERR_UNSUPPORTED);
2517     return NULL;
2518 }
2519
2520 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
2521 {
2522     error_setg(errp, QERR_UNSUPPORTED);
2523     return NULL;
2524 }