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
  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
  50 typedef struct GuestFileHandle {
  51     int64_t id;
  52     HANDLE fh;
  53     QTAILQ_ENTRY(GuestFileHandle) next;
  54 } GuestFileHandle;
  55
  56 static 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
  64 typedef struct OpenFlags {
  65     const char *forms;
  66     DWORD desired_access;
  67     DWORD creation_disposition;
  68 } OpenFlags;
  69 static 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
  86 static 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
 103 static 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
 120 static 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
 132 static 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
 154 int64_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
 200 void 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
 218 static 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
 247 out:
 248     if (token) {
 249         CloseHandle(token);
 250     }
 251     if (local_err) {
 252         error_propagate(errp, local_err);
 253     }
 254 }
 255
 256 static 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
 269 void 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
 302 GuestFileRead *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
 344 GuestFileWrite *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
 382 done:
 383     g_free(buf);
 384     return write_data;
 385 }
 386
 387 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
 388                                    int64_t whence_code, Error **errp)
 389 {
 390     GuestFileHandle *gfh;
 391     GuestFileSeek *seek_data;
 392     HANDLE fh;
 393     LARGE_INTEGER new_pos, off_pos;
 394     off_pos.QuadPart = offset;
 395     BOOL res;
 396     int whence;
 397
 398     gfh = guest_file_handle_find(handle, errp);
 399     if (!gfh) {
 400         return NULL;
 401     }
 402
 403     /* We stupidly exposed 'whence':'int' in our qapi */
 404     switch (whence_code) {
 405     case QGA_SEEK_SET:
 406         whence = SEEK_SET;
 407         break;
 408     case QGA_SEEK_CUR:
 409         whence = SEEK_CUR;
 410         break;
 411     case QGA_SEEK_END:
 412         whence = SEEK_END;
 413         break;
 414     default:
 415         error_setg(errp, "invalid whence code %"PRId64, whence_code);
 416         return NULL;
 417     }
 418
 419     fh = gfh->fh;
 420     res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
 421     if (!res) {
 422         error_setg_win32(errp, GetLastError(), "failed to seek file");
 423         return NULL;
 424     }
 425     seek_data = g_new0(GuestFileSeek, 1);
 426     seek_data->position = new_pos.QuadPart;
 427     return seek_data;
 428 }
 429
 430 void qmp_guest_file_flush(int64_t handle, Error **errp)
 431 {
 432     HANDLE fh;
 433     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 434     if (!gfh) {
 435         return;
 436     }
 437
 438     fh = gfh->fh;
 439     if (!FlushFileBuffers(fh)) {
 440         error_setg_win32(errp, GetLastError(), "failed to flush file");
 441     }
 442 }
 443
 444 #ifdef CONFIG_QGA_NTDDSCSI
 445
 446 static STORAGE_BUS_TYPE win2qemu[] = {
 447     [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 448     [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
 449     [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
 450     [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
 451     [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
 452     [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
 453     [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
 454     [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
 455     [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
 456 #if (_WIN32_WINNT >= 0x0600)
 457     [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
 458     [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
 459     [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
 460     [BusTypeSd] =  GUEST_DISK_BUS_TYPE_SD,
 461     [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
 462 #endif
 463 #if (_WIN32_WINNT >= 0x0601)
 464     [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
 465     [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
 466 #endif
 467 };
 468
 469 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
 470 {
 471     if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) {
 472         return GUEST_DISK_BUS_TYPE_UNKNOWN;
 473     }
 474     return win2qemu[(int)bus];
 475 }
 476
 477 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
 478         0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
 479         0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 480
 481 static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
 482 {
 483     HDEVINFO dev_info;
 484     SP_DEVINFO_DATA dev_info_data;
 485     DWORD size = 0;
 486     int i;
 487     char dev_name[MAX_PATH];
 488     char *buffer = NULL;
 489     GuestPCIAddress *pci = NULL;
 490     char *name = g_strdup(&guid[4]);
 491
 492     if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
 493         error_setg_win32(errp, GetLastError(), "failed to get dos device name");
 494         goto out;
 495     }
 496
 497     dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
 498                                    DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 499     if (dev_info == INVALID_HANDLE_VALUE) {
 500         error_setg_win32(errp, GetLastError(), "failed to get devices tree");
 501         goto out;
 502     }
 503
 504     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 505     for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
 506         DWORD addr, bus, slot, func, dev, data, size2;
 507         while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 508                                             SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
 509                                             &data, (PBYTE)buffer, size,
 510                                             &size2)) {
 511             size = MAX(size, size2);
 512             if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 513                 g_free(buffer);
 514                 /* Double the size to avoid problems on
 515                  * W2k MBCS systems per KB 888609.
 516                  * https://support.microsoft.com/en-us/kb/259695 */
 517                 buffer = g_malloc(size * 2);
 518             } else {
 519                 error_setg_win32(errp, GetLastError(),
 520                         "failed to get device name");
 521                 goto out;
 522             }
 523         }
 524
 525         if (g_strcmp0(buffer, dev_name)) {
 526             continue;
 527         }
 528
 529         /* There is no need to allocate buffer in the next functions. The size
 530          * is known and ULONG according to
 531          * https://support.microsoft.com/en-us/kb/253232
 532          * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
 533          */
 534         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 535                    SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
 536             break;
 537         }
 538
 539         /* The function retrieves the device's address. This value will be
 540          * transformed into device function and number */
 541         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 542                    SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
 543             break;
 544         }
 545
 546         /* This call returns UINumber of DEVICE_CAPABILITIES structure.
 547          * This number is typically a user-perceived slot number. */
 548         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 549                    SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
 550             break;
 551         }
 552
 553         /* SetupApi gives us the same information as driver with
 554          * IoGetDeviceProperty. According to Microsoft
 555          * https://support.microsoft.com/en-us/kb/253232
 556          * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
 557          * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
 558          * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
 559
 560         func = addr & 0x0000FFFF;
 561         dev = (addr >> 16) & 0x0000FFFF;
 562         pci = g_malloc0(sizeof(*pci));
 563         pci->domain = dev;
 564         pci->slot = slot;
 565         pci->function = func;
 566         pci->bus = bus;
 567         break;
 568     }
 569 out:
 570     g_free(buffer);
 571     g_free(name);
 572     return pci;
 573 }
 574
 575 static int get_disk_bus_type(HANDLE vol_h, Error **errp)
 576 {
 577     STORAGE_PROPERTY_QUERY query;
 578     STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
 579     DWORD received;
 580
 581     dev_desc = &buf;
 582     dev_desc->Size = sizeof(buf);
 583     query.PropertyId = StorageDeviceProperty;
 584     query.QueryType = PropertyStandardQuery;
 585
 586     if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 587                          sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 588                          dev_desc->Size, &received, NULL)) {
 589         error_setg_win32(errp, GetLastError(), "failed to get bus type");
 590         return -1;
 591     }
 592
 593     return dev_desc->BusType;
 594 }
 595
 596 /* VSS provider works with volumes, thus there is no difference if
 597  * the volume consist of spanned disks. Info about the first disk in the
 598  * volume is returned for the spanned disk group (LVM) */
 599 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 600 {
 601     GuestDiskAddressList *list = NULL;
 602     GuestDiskAddress *disk;
 603     SCSI_ADDRESS addr, *scsi_ad;
 604     DWORD len;
 605     int bus;
 606     HANDLE vol_h;
 607
 608     scsi_ad = &addr;
 609     char *name = g_strndup(guid, strlen(guid)-1);
 610
 611     vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 612                        0, NULL);
 613     if (vol_h == INVALID_HANDLE_VALUE) {
 614         error_setg_win32(errp, GetLastError(), "failed to open volume");
 615         goto out_free;
 616     }
 617
 618     bus = get_disk_bus_type(vol_h, errp);
 619     if (bus < 0) {
 620         goto out_close;
 621     }
 622
 623     disk = g_malloc0(sizeof(*disk));
 624     disk->bus_type = find_bus_type(bus);
 625     if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
 626 #if (_WIN32_WINNT >= 0x0600)
 627             /* This bus type is not supported before Windows Server 2003 SP1 */
 628             || bus == BusTypeSas
 629 #endif
 630         ) {
 631         /* We are able to use the same ioctls for different bus types
 632          * according to Microsoft docs
 633          * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
 634         if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
 635                             sizeof(SCSI_ADDRESS), &len, NULL)) {
 636             disk->unit = addr.Lun;
 637             disk->target = addr.TargetId;
 638             disk->bus = addr.PathId;
 639             disk->pci_controller = get_pci_info(name, errp);
 640         }
 641         /* We do not set error in this case, because we still have enough
 642          * information about volume. */
 643     } else {
 644          disk->pci_controller = NULL;
 645     }
 646
 647     list = g_malloc0(sizeof(*list));
 648     list->value = disk;
 649     list->next = NULL;
 650 out_close:
 651     CloseHandle(vol_h);
 652 out_free:
 653     g_free(name);
 654     return list;
 655 }
 656
 657 #else
 658
 659 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 660 {
 661     return NULL;
 662 }
 663
 664 #endif /* CONFIG_QGA_NTDDSCSI */
 665
 666 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
 667 {
 668     DWORD info_size;
 669     char mnt, *mnt_point;
 670     char fs_name[32];
 671     char vol_info[MAX_PATH+1];
 672     size_t len;
 673     GuestFilesystemInfo *fs = NULL;
 674
 675     GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
 676     if (GetLastError() != ERROR_MORE_DATA) {
 677         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 678         return NULL;
 679     }
 680
 681     mnt_point = g_malloc(info_size + 1);
 682     if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
 683                                          &info_size)) {
 684         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 685         goto free;
 686     }
 687
 688     len = strlen(mnt_point);
 689     mnt_point[len] = '\\';
 690     mnt_point[len+1] = 0;
 691     if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
 692                               NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
 693         if (GetLastError() != ERROR_NOT_READY) {
 694             error_setg_win32(errp, GetLastError(), "failed to get volume info");
 695         }
 696         goto free;
 697     }
 698
 699     fs_name[sizeof(fs_name) - 1] = 0;
 700     fs = g_malloc(sizeof(*fs));
 701     fs->name = g_strdup(guid);
 702     if (len == 0) {
 703         fs->mountpoint = g_strdup("System Reserved");
 704     } else {
 705         fs->mountpoint = g_strndup(mnt_point, len);
 706     }
 707     fs->type = g_strdup(fs_name);
 708     fs->disk = build_guest_disk_info(guid, errp);
 709 free:
 710     g_free(mnt_point);
 711     return fs;
 712 }
 713
 714 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 715 {
 716     HANDLE vol_h;
 717     GuestFilesystemInfoList *new, *ret = NULL;
 718     char guid[256];
 719
 720     vol_h = FindFirstVolume(guid, sizeof(guid));
 721     if (vol_h == INVALID_HANDLE_VALUE) {
 722         error_setg_win32(errp, GetLastError(), "failed to find any volume");
 723         return NULL;
 724     }
 725
 726     do {
 727         GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
 728         if (info == NULL) {
 729             continue;
 730         }
 731         new = g_malloc(sizeof(*ret));
 732         new->value = info;
 733         new->next = ret;
 734         ret = new;
 735     } while (FindNextVolume(vol_h, guid, sizeof(guid)));
 736
 737     if (GetLastError() != ERROR_NO_MORE_FILES) {
 738         error_setg_win32(errp, GetLastError(), "failed to find next volume");
 739     }
 740
 741     FindVolumeClose(vol_h);
 742     return ret;
 743 }
 744
 745 /*
 746  * Return status of freeze/thaw
 747  */
 748 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 749 {
 750     if (!vss_initialized()) {
 751         error_setg(errp, QERR_UNSUPPORTED);
 752         return 0;
 753     }
 754
 755     if (ga_is_frozen(ga_state)) {
 756         return GUEST_FSFREEZE_STATUS_FROZEN;
 757     }
 758
 759     return GUEST_FSFREEZE_STATUS_THAWED;
 760 }
 761
 762 /*
 763  * Freeze local file systems using Volume Shadow-copy Service.
 764  * The frozen state is limited for up to 10 seconds by VSS.
 765  */
 766 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
 767 {
 768     int i;
 769     Error *local_err = NULL;
 770
 771     if (!vss_initialized()) {
 772         error_setg(errp, QERR_UNSUPPORTED);
 773         return 0;
 774     }
 775
 776     slog("guest-fsfreeze called");
 777
 778     /* cannot risk guest agent blocking itself on a write in this state */
 779     ga_set_frozen(ga_state);
 780
 781     qga_vss_fsfreeze(&i, &local_err, true);
 782     if (local_err) {
 783         error_propagate(errp, local_err);
 784         goto error;
 785     }
 786
 787     return i;
 788
 789 error:
 790     local_err = NULL;
 791     qmp_guest_fsfreeze_thaw(&local_err);
 792     if (local_err) {
 793         g_debug("cleanup thaw: %s", error_get_pretty(local_err));
 794         error_free(local_err);
 795     }
 796     return 0;
 797 }
 798
 799 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
 800                                        strList *mountpoints,
 801                                        Error **errp)
 802 {
 803     error_setg(errp, QERR_UNSUPPORTED);
 804
 805     return 0;
 806 }
 807
 808 /*
 809  * Thaw local file systems using Volume Shadow-copy Service.
 810  */
 811 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 812 {
 813     int i;
 814
 815     if (!vss_initialized()) {
 816         error_setg(errp, QERR_UNSUPPORTED);
 817         return 0;
 818     }
 819
 820     qga_vss_fsfreeze(&i, errp, false);
 821
 822     ga_unset_frozen(ga_state);
 823     return i;
 824 }
 825
 826 static void guest_fsfreeze_cleanup(void)
 827 {
 828     Error *err = NULL;
 829
 830     if (!vss_initialized()) {
 831         return;
 832     }
 833
 834     if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
 835         qmp_guest_fsfreeze_thaw(&err);
 836         if (err) {
 837             slog("failed to clean up frozen filesystems: %s",
 838                  error_get_pretty(err));
 839             error_free(err);
 840         }
 841     }
 842
 843     vss_deinit(true);
 844 }
 845
 846 /*
 847  * Walk list of mounted file systems in the guest, and discard unused
 848  * areas.
 849  */
 850 GuestFilesystemTrimResponse *
 851 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 852 {
 853     error_setg(errp, QERR_UNSUPPORTED);
 854     return NULL;
 855 }
 856
 857 typedef enum {
 858     GUEST_SUSPEND_MODE_DISK,
 859     GUEST_SUSPEND_MODE_RAM
 860 } GuestSuspendMode;
 861
 862 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
 863 {
 864     SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
 865     Error *local_err = NULL;
 866
 867     ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
 868     if (!GetPwrCapabilities(&sys_pwr_caps)) {
 869         error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 870                    "failed to determine guest suspend capabilities");
 871         goto out;
 872     }
 873
 874     switch (mode) {
 875     case GUEST_SUSPEND_MODE_DISK:
 876         if (!sys_pwr_caps.SystemS4) {
 877             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 878                        "suspend-to-disk not supported by OS");
 879         }
 880         break;
 881     case GUEST_SUSPEND_MODE_RAM:
 882         if (!sys_pwr_caps.SystemS3) {
 883             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 884                        "suspend-to-ram not supported by OS");
 885         }
 886         break;
 887     default:
 888         error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
 889                    "GuestSuspendMode");
 890     }
 891
 892 out:
 893     if (local_err) {
 894         error_propagate(errp, local_err);
 895     }
 896 }
 897
 898 static DWORD WINAPI do_suspend(LPVOID opaque)
 899 {
 900     GuestSuspendMode *mode = opaque;
 901     DWORD ret = 0;
 902
 903     if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
 904         slog("failed to suspend guest, %lu", GetLastError());
 905         ret = -1;
 906     }
 907     g_free(mode);
 908     return ret;
 909 }
 910
 911 void qmp_guest_suspend_disk(Error **errp)
 912 {
 913     Error *local_err = NULL;
 914     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 915
 916     *mode = GUEST_SUSPEND_MODE_DISK;
 917     check_suspend_mode(*mode, &local_err);
 918     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 919     execute_async(do_suspend, mode, &local_err);
 920
 921     if (local_err) {
 922         error_propagate(errp, local_err);
 923         g_free(mode);
 924     }
 925 }
 926
 927 void qmp_guest_suspend_ram(Error **errp)
 928 {
 929     Error *local_err = NULL;
 930     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 931
 932     *mode = GUEST_SUSPEND_MODE_RAM;
 933     check_suspend_mode(*mode, &local_err);
 934     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 935     execute_async(do_suspend, mode, &local_err);
 936
 937     if (local_err) {
 938         error_propagate(errp, local_err);
 939         g_free(mode);
 940     }
 941 }
 942
 943 void qmp_guest_suspend_hybrid(Error **errp)
 944 {
 945     error_setg(errp, QERR_UNSUPPORTED);
 946 }
 947
 948 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
 949 {
 950     IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
 951     ULONG adptr_addrs_len = 0;
 952     DWORD ret;
 953
 954     /* Call the first time to get the adptr_addrs_len. */
 955     GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 956                          NULL, adptr_addrs, &adptr_addrs_len);
 957
 958     adptr_addrs = g_malloc(adptr_addrs_len);
 959     ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 960                                NULL, adptr_addrs, &adptr_addrs_len);
 961     if (ret != ERROR_SUCCESS) {
 962         error_setg_win32(errp, ret, "failed to get adapters addresses");
 963         g_free(adptr_addrs);
 964         adptr_addrs = NULL;
 965     }
 966     return adptr_addrs;
 967 }
 968
 969 static char *guest_wctomb_dup(WCHAR *wstr)
 970 {
 971     char *str;
 972     size_t i;
 973
 974     i = wcslen(wstr) + 1;
 975     str = g_malloc(i);
 976     WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
 977                         wstr, -1, str, i, NULL, NULL);
 978     return str;
 979 }
 980
 981 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
 982                                Error **errp)
 983 {
 984     char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
 985     DWORD len;
 986     int ret;
 987
 988     if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
 989             ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
 990         len = sizeof(addr_str);
 991         ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
 992                                  ip_addr->Address.iSockaddrLength,
 993                                  NULL,
 994                                  addr_str,
 995                                  &len);
 996         if (ret != 0) {
 997             error_setg_win32(errp, WSAGetLastError(),
 998                 "failed address presentation form conversion");
 999             return NULL;
1000         }
1001         return g_strdup(addr_str);
1002     }
1003     return NULL;
1004 }
1005
1006 #if (_WIN32_WINNT >= 0x0600)
1007 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1008 {
1009     /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1010      * field to obtain the prefix.
1011      */
1012     return ip_addr->OnLinkPrefixLength;
1013 }
1014 #else
1015 /* When using the Windows XP and 2003 build environment, do the best we can to
1016  * figure out the prefix.
1017  */
1018 static IP_ADAPTER_INFO *guest_get_adapters_info(void)
1019 {
1020     IP_ADAPTER_INFO *adptr_info = NULL;
1021     ULONG adptr_info_len = 0;
1022     DWORD ret;
1023
1024     /* Call the first time to get the adptr_info_len. */
1025     GetAdaptersInfo(adptr_info, &adptr_info_len);
1026
1027     adptr_info = g_malloc(adptr_info_len);
1028     ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
1029     if (ret != ERROR_SUCCESS) {
1030         g_free(adptr_info);
1031         adptr_info = NULL;
1032     }
1033     return adptr_info;
1034 }
1035
1036 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1037 {
1038     int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
1039     IP_ADAPTER_INFO *adptr_info, *info;
1040     IP_ADDR_STRING *ip;
1041     struct in_addr *p;
1042
1043     if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
1044         return prefix;
1045     }
1046     adptr_info = guest_get_adapters_info();
1047     if (adptr_info == NULL) {
1048         return prefix;
1049     }
1050
1051     /* Match up the passed in ip_addr with one found in adaptr_info.
1052      * The matching one in adptr_info will have the netmask.
1053      */
1054     p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
1055     for (info = adptr_info; info; info = info->Next) {
1056         for (ip = &info->IpAddressList; ip; ip = ip->Next) {
1057             if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
1058                 prefix = ctpop32(inet_addr(ip->IpMask.String));
1059                 goto out;
1060             }
1061         }
1062     }
1063 out:
1064     g_free(adptr_info);
1065     return prefix;
1066 }
1067 #endif
1068
1069 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1070 {
1071     IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1072     IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1073     GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1074     GuestIpAddressList *head_addr, *cur_addr;
1075     GuestNetworkInterfaceList *info;
1076     GuestIpAddressList *address_item = NULL;
1077     unsigned char *mac_addr;
1078     char *addr_str;
1079     WORD wsa_version;
1080     WSADATA wsa_data;
1081     int ret;
1082
1083     adptr_addrs = guest_get_adapters_addresses(errp);
1084     if (adptr_addrs == NULL) {
1085         return NULL;
1086     }
1087
1088     /* Make WSA APIs available. */
1089     wsa_version = MAKEWORD(2, 2);
1090     ret = WSAStartup(wsa_version, &wsa_data);
1091     if (ret != 0) {
1092         error_setg_win32(errp, ret, "failed socket startup");
1093         goto out;
1094     }
1095
1096     for (addr = adptr_addrs; addr; addr = addr->Next) {
1097         info = g_malloc0(sizeof(*info));
1098
1099         if (cur_item == NULL) {
1100             head = cur_item = info;
1101         } else {
1102             cur_item->next = info;
1103             cur_item = info;
1104         }
1105
1106         info->value = g_malloc0(sizeof(*info->value));
1107         info->value->name = guest_wctomb_dup(addr->FriendlyName);
1108
1109         if (addr->PhysicalAddressLength != 0) {
1110             mac_addr = addr->PhysicalAddress;
1111
1112             info->value->hardware_address =
1113                 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1114                                 (int) mac_addr[0], (int) mac_addr[1],
1115                                 (int) mac_addr[2], (int) mac_addr[3],
1116                                 (int) mac_addr[4], (int) mac_addr[5]);
1117
1118             info->value->has_hardware_address = true;
1119         }
1120
1121         head_addr = NULL;
1122         cur_addr = NULL;
1123         for (ip_addr = addr->FirstUnicastAddress;
1124                 ip_addr;
1125                 ip_addr = ip_addr->Next) {
1126             addr_str = guest_addr_to_str(ip_addr, errp);
1127             if (addr_str == NULL) {
1128                 continue;
1129             }
1130
1131             address_item = g_malloc0(sizeof(*address_item));
1132
1133             if (!cur_addr) {
1134                 head_addr = cur_addr = address_item;
1135             } else {
1136                 cur_addr->next = address_item;
1137                 cur_addr = address_item;
1138             }
1139
1140             address_item->value = g_malloc0(sizeof(*address_item->value));
1141             address_item->value->ip_address = addr_str;
1142             address_item->value->prefix = guest_ip_prefix(ip_addr);
1143             if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1144                 address_item->value->ip_address_type =
1145                     GUEST_IP_ADDRESS_TYPE_IPV4;
1146             } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1147                 address_item->value->ip_address_type =
1148                     GUEST_IP_ADDRESS_TYPE_IPV6;
1149             }
1150         }
1151         if (head_addr) {
1152             info->value->has_ip_addresses = true;
1153             info->value->ip_addresses = head_addr;
1154         }
1155     }
1156     WSACleanup();
1157 out:
1158     g_free(adptr_addrs);
1159     return head;
1160 }
1161
1162 int64_t qmp_guest_get_time(Error **errp)
1163 {
1164     SYSTEMTIME ts = {0};
1165     int64_t time_ns;
1166     FILETIME tf;
1167
1168     GetSystemTime(&ts);
1169     if (ts.wYear < 1601 || ts.wYear > 30827) {
1170         error_setg(errp, "Failed to get time");
1171         return -1;
1172     }
1173
1174     if (!SystemTimeToFileTime(&ts, &tf)) {
1175         error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1176         return -1;
1177     }
1178
1179     time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1180                 - W32_FT_OFFSET) * 100;
1181
1182     return time_ns;
1183 }
1184
1185 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1186 {
1187     Error *local_err = NULL;
1188     SYSTEMTIME ts;
1189     FILETIME tf;
1190     LONGLONG time;
1191
1192     if (!has_time) {
1193         /* Unfortunately, Windows libraries don't provide an easy way to access
1194          * RTC yet:
1195          *
1196          * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1197          */
1198         error_setg(errp, "Time argument is required on this platform");
1199         return;
1200     }
1201
1202     /* Validate time passed by user. */
1203     if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1204         error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1205         return;
1206     }
1207
1208     time = time_ns / 100 + W32_FT_OFFSET;
1209
1210     tf.dwLowDateTime = (DWORD) time;
1211     tf.dwHighDateTime = (DWORD) (time >> 32);
1212
1213     if (!FileTimeToSystemTime(&tf, &ts)) {
1214         error_setg(errp, "Failed to convert system time %d",
1215                    (int)GetLastError());
1216         return;
1217     }
1218
1219     acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1220     if (local_err) {
1221         error_propagate(errp, local_err);
1222         return;
1223     }
1224
1225     if (!SetSystemTime(&ts)) {
1226         error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1227         return;
1228     }
1229 }
1230
1231 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1232 {
1233     error_setg(errp, QERR_UNSUPPORTED);
1234     return NULL;
1235 }
1236
1237 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1238 {
1239     error_setg(errp, QERR_UNSUPPORTED);
1240     return -1;
1241 }
1242
1243 static gchar *
1244 get_net_error_message(gint error)
1245 {
1246     HMODULE module = NULL;
1247     gchar *retval = NULL;
1248     wchar_t *msg = NULL;
1249     int flags, nchars;
1250
1251     flags = FORMAT_MESSAGE_ALLOCATE_BUFFER
1252         |FORMAT_MESSAGE_IGNORE_INSERTS
1253         |FORMAT_MESSAGE_FROM_SYSTEM;
1254
1255     if (error >= NERR_BASE && error <= MAX_NERR) {
1256         module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1257
1258         if (module != NULL) {
1259             flags |= FORMAT_MESSAGE_FROM_HMODULE;
1260         }
1261     }
1262
1263     FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1264
1265     if (msg != NULL) {
1266         nchars = wcslen(msg);
1267
1268         if (nchars > 2 && msg[nchars-1] == '\n' && msg[nchars-2] == '\r') {
1269             msg[nchars-2] = '\0';
1270         }
1271
1272         retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1273
1274         LocalFree(msg);
1275     }
1276
1277     if (module != NULL) {
1278         FreeLibrary(module);
1279     }
1280
1281     return retval;
1282 }
1283
1284 void qmp_guest_set_user_password(const char *username,
1285                                  const char *password,
1286                                  bool crypted,
1287                                  Error **errp)
1288 {
1289     NET_API_STATUS nas;
1290     char *rawpasswddata = NULL;
1291     size_t rawpasswdlen;
1292     wchar_t *user, *wpass;
1293     USER_INFO_1003 pi1003 = { 0, };
1294
1295     if (crypted) {
1296         error_setg(errp, QERR_UNSUPPORTED);
1297         return;
1298     }
1299
1300     rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1301     if (!rawpasswddata) {
1302         return;
1303     }
1304     rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1305     rawpasswddata[rawpasswdlen] = '\0';
1306
1307     user = g_utf8_to_utf16(username, -1, NULL, NULL, NULL);
1308     wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, NULL);
1309
1310     pi1003.usri1003_password = wpass;
1311     nas = NetUserSetInfo(NULL, user,
1312                          1003, (LPBYTE)&pi1003,
1313                          NULL);
1314
1315     if (nas != NERR_Success) {
1316         gchar *msg = get_net_error_message(nas);
1317         error_setg(errp, "failed to set password: %s", msg);
1318         g_free(msg);
1319     }
1320
1321     g_free(user);
1322     g_free(wpass);
1323     g_free(rawpasswddata);
1324 }
1325
1326 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1327 {
1328     error_setg(errp, QERR_UNSUPPORTED);
1329     return NULL;
1330 }
1331
1332 GuestMemoryBlockResponseList *
1333 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1334 {
1335     error_setg(errp, QERR_UNSUPPORTED);
1336     return NULL;
1337 }
1338
1339 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1340 {
1341     error_setg(errp, QERR_UNSUPPORTED);
1342     return NULL;
1343 }
1344
1345 /* add unsupported commands to the blacklist */
1346 GList *ga_command_blacklist_init(GList *blacklist)
1347 {
1348     const char *list_unsupported[] = {
1349         "guest-suspend-hybrid",
1350         "guest-get-vcpus", "guest-set-vcpus",
1351         "guest-get-memory-blocks", "guest-set-memory-blocks",
1352         "guest-get-memory-block-size",
1353         "guest-fsfreeze-freeze-list",
1354         "guest-fstrim", NULL};
1355     char **p = (char **)list_unsupported;
1356
1357     while (*p) {
1358         blacklist = g_list_append(blacklist, g_strdup(*p++));
1359     }
1360
1361     if (!vss_init(true)) {
1362         g_debug("vss_init failed, vss commands are going to be disabled");
1363         const char *list[] = {
1364             "guest-get-fsinfo", "guest-fsfreeze-status",
1365             "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1366         p = (char **)list;
1367
1368         while (*p) {
1369             blacklist = g_list_append(blacklist, g_strdup(*p++));
1370         }
1371     }
1372
1373     return blacklist;
1374 }
1375
1376 /* register init/cleanup routines for stateful command groups */
1377 void ga_command_state_init(GAState *s, GACommandState *cs)
1378 {
1379     if (!vss_initialized()) {
1380         ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1381     }
1382 }