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 <glib.h>
  15 #include <wtypes.h>
  16 #include <powrprof.h>
  17 #include <stdio.h>
  18 #include <string.h>
  19 #include <winsock2.h>
  20 #include <ws2tcpip.h>
  21 #include <iptypes.h>
  22 #include <iphlpapi.h>
  23 #ifdef CONFIG_QGA_NTDDSCSI
  24 #include <winioctl.h>
  25 #include <ntddscsi.h>
  26 #include <setupapi.h>
  27 #include <initguid.h>
  28 #endif
  29 #include <lm.h>
  30
  31 #include "qga/guest-agent-core.h"
  32 #include "qga/vss-win32.h"
  33 #include "qga-qmp-commands.h"
  34 #include "qapi/qmp/qerror.h"
  35 #include "qemu/queue.h"
  36 #include "qemu/host-utils.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 = g_base64_decode(buf_b64, &buf_len);
 361
 362     if (!has_count) {
 363         count = buf_len;
 364     } else if (count < 0 || count > buf_len) {
 365         error_setg(errp, "value '%" PRId64
 366                    "' is invalid for argument count", count);
 367         goto done;
 368     }
 369
 370     is_ok = WriteFile(fh, buf, count, &write_count, NULL);
 371     if (!is_ok) {
 372         error_setg_win32(errp, GetLastError(), "failed to write to file");
 373         slog("guest-file-write-failed, handle: %" PRId64, handle);
 374     } else {
 375         write_data = g_new0(GuestFileWrite, 1);
 376         write_data->count = (size_t) write_count;
 377     }
 378
 379 done:
 380     g_free(buf);
 381     return write_data;
 382 }
 383
 384 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
 385                                    int64_t whence_code, Error **errp)
 386 {
 387     GuestFileHandle *gfh;
 388     GuestFileSeek *seek_data;
 389     HANDLE fh;
 390     LARGE_INTEGER new_pos, off_pos;
 391     off_pos.QuadPart = offset;
 392     BOOL res;
 393     int whence;
 394
 395     gfh = guest_file_handle_find(handle, errp);
 396     if (!gfh) {
 397         return NULL;
 398     }
 399
 400     /* We stupidly exposed 'whence':'int' in our qapi */
 401     switch (whence_code) {
 402     case QGA_SEEK_SET:
 403         whence = SEEK_SET;
 404         break;
 405     case QGA_SEEK_CUR:
 406         whence = SEEK_CUR;
 407         break;
 408     case QGA_SEEK_END:
 409         whence = SEEK_END;
 410         break;
 411     default:
 412         error_setg(errp, "invalid whence code %"PRId64, whence_code);
 413         return NULL;
 414     }
 415
 416     fh = gfh->fh;
 417     res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
 418     if (!res) {
 419         error_setg_win32(errp, GetLastError(), "failed to seek file");
 420         return NULL;
 421     }
 422     seek_data = g_new0(GuestFileSeek, 1);
 423     seek_data->position = new_pos.QuadPart;
 424     return seek_data;
 425 }
 426
 427 void qmp_guest_file_flush(int64_t handle, Error **errp)
 428 {
 429     HANDLE fh;
 430     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 431     if (!gfh) {
 432         return;
 433     }
 434
 435     fh = gfh->fh;
 436     if (!FlushFileBuffers(fh)) {
 437         error_setg_win32(errp, GetLastError(), "failed to flush file");
 438     }
 439 }
 440
 441 #ifdef CONFIG_QGA_NTDDSCSI
 442
 443 static STORAGE_BUS_TYPE win2qemu[] = {
 444     [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 445     [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
 446     [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
 447     [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
 448     [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
 449     [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
 450     [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
 451     [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
 452     [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
 453 #if (_WIN32_WINNT >= 0x0600)
 454     [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
 455     [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
 456     [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
 457     [BusTypeSd] =  GUEST_DISK_BUS_TYPE_SD,
 458     [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
 459 #endif
 460 #if (_WIN32_WINNT >= 0x0601)
 461     [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
 462     [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
 463 #endif
 464 };
 465
 466 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
 467 {
 468     if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) {
 469         return GUEST_DISK_BUS_TYPE_UNKNOWN;
 470     }
 471     return win2qemu[(int)bus];
 472 }
 473
 474 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
 475         0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
 476         0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 477
 478 static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
 479 {
 480     HDEVINFO dev_info;
 481     SP_DEVINFO_DATA dev_info_data;
 482     DWORD size = 0;
 483     int i;
 484     char dev_name[MAX_PATH];
 485     char *buffer = NULL;
 486     GuestPCIAddress *pci = NULL;
 487     char *name = g_strdup(&guid[4]);
 488
 489     if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
 490         error_setg_win32(errp, GetLastError(), "failed to get dos device name");
 491         goto out;
 492     }
 493
 494     dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
 495                                    DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 496     if (dev_info == INVALID_HANDLE_VALUE) {
 497         error_setg_win32(errp, GetLastError(), "failed to get devices tree");
 498         goto out;
 499     }
 500
 501     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 502     for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
 503         DWORD addr, bus, slot, func, dev, data, size2;
 504         while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 505                                             SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
 506                                             &data, (PBYTE)buffer, size,
 507                                             &size2)) {
 508             size = MAX(size, size2);
 509             if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 510                 g_free(buffer);
 511                 /* Double the size to avoid problems on
 512                  * W2k MBCS systems per KB 888609.
 513                  * https://support.microsoft.com/en-us/kb/259695 */
 514                 buffer = g_malloc(size * 2);
 515             } else {
 516                 error_setg_win32(errp, GetLastError(),
 517                         "failed to get device name");
 518                 goto out;
 519             }
 520         }
 521
 522         if (g_strcmp0(buffer, dev_name)) {
 523             continue;
 524         }
 525
 526         /* There is no need to allocate buffer in the next functions. The size
 527          * is known and ULONG according to
 528          * https://support.microsoft.com/en-us/kb/253232
 529          * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
 530          */
 531         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 532                    SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
 533             break;
 534         }
 535
 536         /* The function retrieves the device's address. This value will be
 537          * transformed into device function and number */
 538         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 539                    SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
 540             break;
 541         }
 542
 543         /* This call returns UINumber of DEVICE_CAPABILITIES structure.
 544          * This number is typically a user-perceived slot number. */
 545         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 546                    SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
 547             break;
 548         }
 549
 550         /* SetupApi gives us the same information as driver with
 551          * IoGetDeviceProperty. According to Microsoft
 552          * https://support.microsoft.com/en-us/kb/253232
 553          * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
 554          * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
 555          * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
 556
 557         func = addr & 0x0000FFFF;
 558         dev = (addr >> 16) & 0x0000FFFF;
 559         pci = g_malloc0(sizeof(*pci));
 560         pci->domain = dev;
 561         pci->slot = slot;
 562         pci->function = func;
 563         pci->bus = bus;
 564         break;
 565     }
 566 out:
 567     g_free(buffer);
 568     g_free(name);
 569     return pci;
 570 }
 571
 572 static int get_disk_bus_type(HANDLE vol_h, Error **errp)
 573 {
 574     STORAGE_PROPERTY_QUERY query;
 575     STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
 576     DWORD received;
 577
 578     dev_desc = &buf;
 579     dev_desc->Size = sizeof(buf);
 580     query.PropertyId = StorageDeviceProperty;
 581     query.QueryType = PropertyStandardQuery;
 582
 583     if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 584                          sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 585                          dev_desc->Size, &received, NULL)) {
 586         error_setg_win32(errp, GetLastError(), "failed to get bus type");
 587         return -1;
 588     }
 589
 590     return dev_desc->BusType;
 591 }
 592
 593 /* VSS provider works with volumes, thus there is no difference if
 594  * the volume consist of spanned disks. Info about the first disk in the
 595  * volume is returned for the spanned disk group (LVM) */
 596 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 597 {
 598     GuestDiskAddressList *list = NULL;
 599     GuestDiskAddress *disk;
 600     SCSI_ADDRESS addr, *scsi_ad;
 601     DWORD len;
 602     int bus;
 603     HANDLE vol_h;
 604
 605     scsi_ad = &addr;
 606     char *name = g_strndup(guid, strlen(guid)-1);
 607
 608     vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 609                        0, NULL);
 610     if (vol_h == INVALID_HANDLE_VALUE) {
 611         error_setg_win32(errp, GetLastError(), "failed to open volume");
 612         goto out_free;
 613     }
 614
 615     bus = get_disk_bus_type(vol_h, errp);
 616     if (bus < 0) {
 617         goto out_close;
 618     }
 619
 620     disk = g_malloc0(sizeof(*disk));
 621     disk->bus_type = find_bus_type(bus);
 622     if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
 623 #if (_WIN32_WINNT >= 0x0600)
 624             /* This bus type is not supported before Windows Server 2003 SP1 */
 625             || bus == BusTypeSas
 626 #endif
 627         ) {
 628         /* We are able to use the same ioctls for different bus types
 629          * according to Microsoft docs
 630          * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
 631         if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
 632                             sizeof(SCSI_ADDRESS), &len, NULL)) {
 633             disk->unit = addr.Lun;
 634             disk->target = addr.TargetId;
 635             disk->bus = addr.PathId;
 636             disk->pci_controller = get_pci_info(name, errp);
 637         }
 638         /* We do not set error in this case, because we still have enough
 639          * information about volume. */
 640     } else {
 641          disk->pci_controller = NULL;
 642     }
 643
 644     list = g_malloc0(sizeof(*list));
 645     list->value = disk;
 646     list->next = NULL;
 647 out_close:
 648     CloseHandle(vol_h);
 649 out_free:
 650     g_free(name);
 651     return list;
 652 }
 653
 654 #else
 655
 656 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 657 {
 658     return NULL;
 659 }
 660
 661 #endif /* CONFIG_QGA_NTDDSCSI */
 662
 663 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
 664 {
 665     DWORD info_size;
 666     char mnt, *mnt_point;
 667     char fs_name[32];
 668     char vol_info[MAX_PATH+1];
 669     size_t len;
 670     GuestFilesystemInfo *fs = NULL;
 671
 672     GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
 673     if (GetLastError() != ERROR_MORE_DATA) {
 674         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 675         return NULL;
 676     }
 677
 678     mnt_point = g_malloc(info_size + 1);
 679     if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
 680                                          &info_size)) {
 681         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 682         goto free;
 683     }
 684
 685     len = strlen(mnt_point);
 686     mnt_point[len] = '\\';
 687     mnt_point[len+1] = 0;
 688     if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
 689                               NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
 690         if (GetLastError() != ERROR_NOT_READY) {
 691             error_setg_win32(errp, GetLastError(), "failed to get volume info");
 692         }
 693         goto free;
 694     }
 695
 696     fs_name[sizeof(fs_name) - 1] = 0;
 697     fs = g_malloc(sizeof(*fs));
 698     fs->name = g_strdup(guid);
 699     if (len == 0) {
 700         fs->mountpoint = g_strdup("System Reserved");
 701     } else {
 702         fs->mountpoint = g_strndup(mnt_point, len);
 703     }
 704     fs->type = g_strdup(fs_name);
 705     fs->disk = build_guest_disk_info(guid, errp);
 706 free:
 707     g_free(mnt_point);
 708     return fs;
 709 }
 710
 711 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 712 {
 713     HANDLE vol_h;
 714     GuestFilesystemInfoList *new, *ret = NULL;
 715     char guid[256];
 716
 717     vol_h = FindFirstVolume(guid, sizeof(guid));
 718     if (vol_h == INVALID_HANDLE_VALUE) {
 719         error_setg_win32(errp, GetLastError(), "failed to find any volume");
 720         return NULL;
 721     }
 722
 723     do {
 724         GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
 725         if (info == NULL) {
 726             continue;
 727         }
 728         new = g_malloc(sizeof(*ret));
 729         new->value = info;
 730         new->next = ret;
 731         ret = new;
 732     } while (FindNextVolume(vol_h, guid, sizeof(guid)));
 733
 734     if (GetLastError() != ERROR_NO_MORE_FILES) {
 735         error_setg_win32(errp, GetLastError(), "failed to find next volume");
 736     }
 737
 738     FindVolumeClose(vol_h);
 739     return ret;
 740 }
 741
 742 /*
 743  * Return status of freeze/thaw
 744  */
 745 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 746 {
 747     if (!vss_initialized()) {
 748         error_setg(errp, QERR_UNSUPPORTED);
 749         return 0;
 750     }
 751
 752     if (ga_is_frozen(ga_state)) {
 753         return GUEST_FSFREEZE_STATUS_FROZEN;
 754     }
 755
 756     return GUEST_FSFREEZE_STATUS_THAWED;
 757 }
 758
 759 /*
 760  * Freeze local file systems using Volume Shadow-copy Service.
 761  * The frozen state is limited for up to 10 seconds by VSS.
 762  */
 763 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
 764 {
 765     int i;
 766     Error *local_err = NULL;
 767
 768     if (!vss_initialized()) {
 769         error_setg(errp, QERR_UNSUPPORTED);
 770         return 0;
 771     }
 772
 773     slog("guest-fsfreeze called");
 774
 775     /* cannot risk guest agent blocking itself on a write in this state */
 776     ga_set_frozen(ga_state);
 777
 778     qga_vss_fsfreeze(&i, &local_err, true);
 779     if (local_err) {
 780         error_propagate(errp, local_err);
 781         goto error;
 782     }
 783
 784     return i;
 785
 786 error:
 787     local_err = NULL;
 788     qmp_guest_fsfreeze_thaw(&local_err);
 789     if (local_err) {
 790         g_debug("cleanup thaw: %s", error_get_pretty(local_err));
 791         error_free(local_err);
 792     }
 793     return 0;
 794 }
 795
 796 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
 797                                        strList *mountpoints,
 798                                        Error **errp)
 799 {
 800     error_setg(errp, QERR_UNSUPPORTED);
 801
 802     return 0;
 803 }
 804
 805 /*
 806  * Thaw local file systems using Volume Shadow-copy Service.
 807  */
 808 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 809 {
 810     int i;
 811
 812     if (!vss_initialized()) {
 813         error_setg(errp, QERR_UNSUPPORTED);
 814         return 0;
 815     }
 816
 817     qga_vss_fsfreeze(&i, errp, false);
 818
 819     ga_unset_frozen(ga_state);
 820     return i;
 821 }
 822
 823 static void guest_fsfreeze_cleanup(void)
 824 {
 825     Error *err = NULL;
 826
 827     if (!vss_initialized()) {
 828         return;
 829     }
 830
 831     if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
 832         qmp_guest_fsfreeze_thaw(&err);
 833         if (err) {
 834             slog("failed to clean up frozen filesystems: %s",
 835                  error_get_pretty(err));
 836             error_free(err);
 837         }
 838     }
 839
 840     vss_deinit(true);
 841 }
 842
 843 /*
 844  * Walk list of mounted file systems in the guest, and discard unused
 845  * areas.
 846  */
 847 GuestFilesystemTrimResponse *
 848 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 849 {
 850     error_setg(errp, QERR_UNSUPPORTED);
 851     return NULL;
 852 }
 853
 854 typedef enum {
 855     GUEST_SUSPEND_MODE_DISK,
 856     GUEST_SUSPEND_MODE_RAM
 857 } GuestSuspendMode;
 858
 859 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
 860 {
 861     SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
 862     Error *local_err = NULL;
 863
 864     ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
 865     if (!GetPwrCapabilities(&sys_pwr_caps)) {
 866         error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 867                    "failed to determine guest suspend capabilities");
 868         goto out;
 869     }
 870
 871     switch (mode) {
 872     case GUEST_SUSPEND_MODE_DISK:
 873         if (!sys_pwr_caps.SystemS4) {
 874             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 875                        "suspend-to-disk not supported by OS");
 876         }
 877         break;
 878     case GUEST_SUSPEND_MODE_RAM:
 879         if (!sys_pwr_caps.SystemS3) {
 880             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 881                        "suspend-to-ram not supported by OS");
 882         }
 883         break;
 884     default:
 885         error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
 886                    "GuestSuspendMode");
 887     }
 888
 889 out:
 890     if (local_err) {
 891         error_propagate(errp, local_err);
 892     }
 893 }
 894
 895 static DWORD WINAPI do_suspend(LPVOID opaque)
 896 {
 897     GuestSuspendMode *mode = opaque;
 898     DWORD ret = 0;
 899
 900     if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
 901         slog("failed to suspend guest, %lu", GetLastError());
 902         ret = -1;
 903     }
 904     g_free(mode);
 905     return ret;
 906 }
 907
 908 void qmp_guest_suspend_disk(Error **errp)
 909 {
 910     Error *local_err = NULL;
 911     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 912
 913     *mode = GUEST_SUSPEND_MODE_DISK;
 914     check_suspend_mode(*mode, &local_err);
 915     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 916     execute_async(do_suspend, mode, &local_err);
 917
 918     if (local_err) {
 919         error_propagate(errp, local_err);
 920         g_free(mode);
 921     }
 922 }
 923
 924 void qmp_guest_suspend_ram(Error **errp)
 925 {
 926     Error *local_err = NULL;
 927     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 928
 929     *mode = GUEST_SUSPEND_MODE_RAM;
 930     check_suspend_mode(*mode, &local_err);
 931     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 932     execute_async(do_suspend, mode, &local_err);
 933
 934     if (local_err) {
 935         error_propagate(errp, local_err);
 936         g_free(mode);
 937     }
 938 }
 939
 940 void qmp_guest_suspend_hybrid(Error **errp)
 941 {
 942     error_setg(errp, QERR_UNSUPPORTED);
 943 }
 944
 945 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
 946 {
 947     IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
 948     ULONG adptr_addrs_len = 0;
 949     DWORD ret;
 950
 951     /* Call the first time to get the adptr_addrs_len. */
 952     GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 953                          NULL, adptr_addrs, &adptr_addrs_len);
 954
 955     adptr_addrs = g_malloc(adptr_addrs_len);
 956     ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 957                                NULL, adptr_addrs, &adptr_addrs_len);
 958     if (ret != ERROR_SUCCESS) {
 959         error_setg_win32(errp, ret, "failed to get adapters addresses");
 960         g_free(adptr_addrs);
 961         adptr_addrs = NULL;
 962     }
 963     return adptr_addrs;
 964 }
 965
 966 static char *guest_wctomb_dup(WCHAR *wstr)
 967 {
 968     char *str;
 969     size_t i;
 970
 971     i = wcslen(wstr) + 1;
 972     str = g_malloc(i);
 973     WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
 974                         wstr, -1, str, i, NULL, NULL);
 975     return str;
 976 }
 977
 978 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
 979                                Error **errp)
 980 {
 981     char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
 982     DWORD len;
 983     int ret;
 984
 985     if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
 986             ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
 987         len = sizeof(addr_str);
 988         ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
 989                                  ip_addr->Address.iSockaddrLength,
 990                                  NULL,
 991                                  addr_str,
 992                                  &len);
 993         if (ret != 0) {
 994             error_setg_win32(errp, WSAGetLastError(),
 995                 "failed address presentation form conversion");
 996             return NULL;
 997         }
 998         return g_strdup(addr_str);
 999     }
1000     return NULL;
1001 }
1002
1003 #if (_WIN32_WINNT >= 0x0600)
1004 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1005 {
1006     /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1007      * field to obtain the prefix.
1008      */
1009     return ip_addr->OnLinkPrefixLength;
1010 }
1011 #else
1012 /* When using the Windows XP and 2003 build environment, do the best we can to
1013  * figure out the prefix.
1014  */
1015 static IP_ADAPTER_INFO *guest_get_adapters_info(void)
1016 {
1017     IP_ADAPTER_INFO *adptr_info = NULL;
1018     ULONG adptr_info_len = 0;
1019     DWORD ret;
1020
1021     /* Call the first time to get the adptr_info_len. */
1022     GetAdaptersInfo(adptr_info, &adptr_info_len);
1023
1024     adptr_info = g_malloc(adptr_info_len);
1025     ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
1026     if (ret != ERROR_SUCCESS) {
1027         g_free(adptr_info);
1028         adptr_info = NULL;
1029     }
1030     return adptr_info;
1031 }
1032
1033 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1034 {
1035     int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
1036     IP_ADAPTER_INFO *adptr_info, *info;
1037     IP_ADDR_STRING *ip;
1038     struct in_addr *p;
1039
1040     if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
1041         return prefix;
1042     }
1043     adptr_info = guest_get_adapters_info();
1044     if (adptr_info == NULL) {
1045         return prefix;
1046     }
1047
1048     /* Match up the passed in ip_addr with one found in adaptr_info.
1049      * The matching one in adptr_info will have the netmask.
1050      */
1051     p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
1052     for (info = adptr_info; info; info = info->Next) {
1053         for (ip = &info->IpAddressList; ip; ip = ip->Next) {
1054             if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
1055                 prefix = ctpop32(inet_addr(ip->IpMask.String));
1056                 goto out;
1057             }
1058         }
1059     }
1060 out:
1061     g_free(adptr_info);
1062     return prefix;
1063 }
1064 #endif
1065
1066 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1067 {
1068     IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1069     IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1070     GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1071     GuestIpAddressList *head_addr, *cur_addr;
1072     GuestNetworkInterfaceList *info;
1073     GuestIpAddressList *address_item = NULL;
1074     unsigned char *mac_addr;
1075     char *addr_str;
1076     WORD wsa_version;
1077     WSADATA wsa_data;
1078     int ret;
1079
1080     adptr_addrs = guest_get_adapters_addresses(errp);
1081     if (adptr_addrs == NULL) {
1082         return NULL;
1083     }
1084
1085     /* Make WSA APIs available. */
1086     wsa_version = MAKEWORD(2, 2);
1087     ret = WSAStartup(wsa_version, &wsa_data);
1088     if (ret != 0) {
1089         error_setg_win32(errp, ret, "failed socket startup");
1090         goto out;
1091     }
1092
1093     for (addr = adptr_addrs; addr; addr = addr->Next) {
1094         info = g_malloc0(sizeof(*info));
1095
1096         if (cur_item == NULL) {
1097             head = cur_item = info;
1098         } else {
1099             cur_item->next = info;
1100             cur_item = info;
1101         }
1102
1103         info->value = g_malloc0(sizeof(*info->value));
1104         info->value->name = guest_wctomb_dup(addr->FriendlyName);
1105
1106         if (addr->PhysicalAddressLength != 0) {
1107             mac_addr = addr->PhysicalAddress;
1108
1109             info->value->hardware_address =
1110                 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1111                                 (int) mac_addr[0], (int) mac_addr[1],
1112                                 (int) mac_addr[2], (int) mac_addr[3],
1113                                 (int) mac_addr[4], (int) mac_addr[5]);
1114
1115             info->value->has_hardware_address = true;
1116         }
1117
1118         head_addr = NULL;
1119         cur_addr = NULL;
1120         for (ip_addr = addr->FirstUnicastAddress;
1121                 ip_addr;
1122                 ip_addr = ip_addr->Next) {
1123             addr_str = guest_addr_to_str(ip_addr, errp);
1124             if (addr_str == NULL) {
1125                 continue;
1126             }
1127
1128             address_item = g_malloc0(sizeof(*address_item));
1129
1130             if (!cur_addr) {
1131                 head_addr = cur_addr = address_item;
1132             } else {
1133                 cur_addr->next = address_item;
1134                 cur_addr = address_item;
1135             }
1136
1137             address_item->value = g_malloc0(sizeof(*address_item->value));
1138             address_item->value->ip_address = addr_str;
1139             address_item->value->prefix = guest_ip_prefix(ip_addr);
1140             if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1141                 address_item->value->ip_address_type =
1142                     GUEST_IP_ADDRESS_TYPE_IPV4;
1143             } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1144                 address_item->value->ip_address_type =
1145                     GUEST_IP_ADDRESS_TYPE_IPV6;
1146             }
1147         }
1148         if (head_addr) {
1149             info->value->has_ip_addresses = true;
1150             info->value->ip_addresses = head_addr;
1151         }
1152     }
1153     WSACleanup();
1154 out:
1155     g_free(adptr_addrs);
1156     return head;
1157 }
1158
1159 int64_t qmp_guest_get_time(Error **errp)
1160 {
1161     SYSTEMTIME ts = {0};
1162     int64_t time_ns;
1163     FILETIME tf;
1164
1165     GetSystemTime(&ts);
1166     if (ts.wYear < 1601 || ts.wYear > 30827) {
1167         error_setg(errp, "Failed to get time");
1168         return -1;
1169     }
1170
1171     if (!SystemTimeToFileTime(&ts, &tf)) {
1172         error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1173         return -1;
1174     }
1175
1176     time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1177                 - W32_FT_OFFSET) * 100;
1178
1179     return time_ns;
1180 }
1181
1182 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1183 {
1184     Error *local_err = NULL;
1185     SYSTEMTIME ts;
1186     FILETIME tf;
1187     LONGLONG time;
1188
1189     if (!has_time) {
1190         /* Unfortunately, Windows libraries don't provide an easy way to access
1191          * RTC yet:
1192          *
1193          * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1194          */
1195         error_setg(errp, "Time argument is required on this platform");
1196         return;
1197     }
1198
1199     /* Validate time passed by user. */
1200     if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1201         error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1202         return;
1203     }
1204
1205     time = time_ns / 100 + W32_FT_OFFSET;
1206
1207     tf.dwLowDateTime = (DWORD) time;
1208     tf.dwHighDateTime = (DWORD) (time >> 32);
1209
1210     if (!FileTimeToSystemTime(&tf, &ts)) {
1211         error_setg(errp, "Failed to convert system time %d",
1212                    (int)GetLastError());
1213         return;
1214     }
1215
1216     acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1217     if (local_err) {
1218         error_propagate(errp, local_err);
1219         return;
1220     }
1221
1222     if (!SetSystemTime(&ts)) {
1223         error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1224         return;
1225     }
1226 }
1227
1228 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1229 {
1230     error_setg(errp, QERR_UNSUPPORTED);
1231     return NULL;
1232 }
1233
1234 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1235 {
1236     error_setg(errp, QERR_UNSUPPORTED);
1237     return -1;
1238 }
1239
1240 static gchar *
1241 get_net_error_message(gint error)
1242 {
1243     HMODULE module = NULL;
1244     gchar *retval = NULL;
1245     wchar_t *msg = NULL;
1246     int flags, nchars;
1247
1248     flags = FORMAT_MESSAGE_ALLOCATE_BUFFER
1249         |FORMAT_MESSAGE_IGNORE_INSERTS
1250         |FORMAT_MESSAGE_FROM_SYSTEM;
1251
1252     if (error >= NERR_BASE && error <= MAX_NERR) {
1253         module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1254
1255         if (module != NULL) {
1256             flags |= FORMAT_MESSAGE_FROM_HMODULE;
1257         }
1258     }
1259
1260     FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1261
1262     if (msg != NULL) {
1263         nchars = wcslen(msg);
1264
1265         if (nchars > 2 && msg[nchars-1] == '\n' && msg[nchars-2] == '\r') {
1266             msg[nchars-2] = '\0';
1267         }
1268
1269         retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1270
1271         LocalFree(msg);
1272     }
1273
1274     if (module != NULL) {
1275         FreeLibrary(module);
1276     }
1277
1278     return retval;
1279 }
1280
1281 void qmp_guest_set_user_password(const char *username,
1282                                  const char *password,
1283                                  bool crypted,
1284                                  Error **errp)
1285 {
1286     NET_API_STATUS nas;
1287     char *rawpasswddata = NULL;
1288     size_t rawpasswdlen;
1289     wchar_t *user, *wpass;
1290     USER_INFO_1003 pi1003 = { 0, };
1291
1292     if (crypted) {
1293         error_setg(errp, QERR_UNSUPPORTED);
1294         return;
1295     }
1296
1297     rawpasswddata = (char *)g_base64_decode(password, &rawpasswdlen);
1298     rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1299     rawpasswddata[rawpasswdlen] = '\0';
1300
1301     user = g_utf8_to_utf16(username, -1, NULL, NULL, NULL);
1302     wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, NULL);
1303
1304     pi1003.usri1003_password = wpass;
1305     nas = NetUserSetInfo(NULL, user,
1306                          1003, (LPBYTE)&pi1003,
1307                          NULL);
1308
1309     if (nas != NERR_Success) {
1310         gchar *msg = get_net_error_message(nas);
1311         error_setg(errp, "failed to set password: %s", msg);
1312         g_free(msg);
1313     }
1314
1315     g_free(user);
1316     g_free(wpass);
1317     g_free(rawpasswddata);
1318 }
1319
1320 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1321 {
1322     error_setg(errp, QERR_UNSUPPORTED);
1323     return NULL;
1324 }
1325
1326 GuestMemoryBlockResponseList *
1327 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1328 {
1329     error_setg(errp, QERR_UNSUPPORTED);
1330     return NULL;
1331 }
1332
1333 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1334 {
1335     error_setg(errp, QERR_UNSUPPORTED);
1336     return NULL;
1337 }
1338
1339 /* add unsupported commands to the blacklist */
1340 GList *ga_command_blacklist_init(GList *blacklist)
1341 {
1342     const char *list_unsupported[] = {
1343         "guest-suspend-hybrid",
1344         "guest-get-vcpus", "guest-set-vcpus",
1345         "guest-get-memory-blocks", "guest-set-memory-blocks",
1346         "guest-get-memory-block-size",
1347         "guest-fsfreeze-freeze-list",
1348         "guest-fstrim", NULL};
1349     char **p = (char **)list_unsupported;
1350
1351     while (*p) {
1352         blacklist = g_list_append(blacklist, g_strdup(*p++));
1353     }
1354
1355     if (!vss_init(true)) {
1356         g_debug("vss_init failed, vss commands are going to be disabled");
1357         const char *list[] = {
1358             "guest-get-fsinfo", "guest-fsfreeze-status",
1359             "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1360         p = (char **)list;
1361
1362         while (*p) {
1363             blacklist = g_list_append(blacklist, g_strdup(*p++));
1364         }
1365     }
1366
1367     return blacklist;
1368 }
1369
1370 /* register init/cleanup routines for stateful command groups */
1371 void ga_command_state_init(GAState *s, GACommandState *cs)
1372 {
1373     if (!vss_initialized()) {
1374         ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1375     }
1376 }