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
  63 typedef struct OpenFlags {
  64     const char *forms;
  65     DWORD desired_access;
  66     DWORD creation_disposition;
  67 } OpenFlags;
  68 static OpenFlags guest_file_open_modes[] = {
  69     {"r",   GENERIC_READ,               OPEN_EXISTING},
  70     {"rb",  GENERIC_READ,               OPEN_EXISTING},
  71     {"w",   GENERIC_WRITE,              CREATE_ALWAYS},
  72     {"wb",  GENERIC_WRITE,              CREATE_ALWAYS},
  73     {"a",   GENERIC_WRITE,              OPEN_ALWAYS  },
  74     {"r+",  GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
  75     {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
  76     {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
  77     {"w+",  GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
  78     {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
  79     {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
  80     {"a+",  GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  },
  81     {"ab+", GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  },
  82     {"a+b", GENERIC_WRITE|GENERIC_READ, OPEN_ALWAYS  }
  83 };
  84
  85 static OpenFlags *find_open_flag(const char *mode_str)
  86 {
  87     int mode;
  88     Error **errp = NULL;
  89
  90     for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
  91         OpenFlags *flags = guest_file_open_modes + mode;
  92
  93         if (strcmp(flags->forms, mode_str) == 0) {
  94             return flags;
  95         }
  96     }
  97
  98     error_setg(errp, "invalid file open mode '%s'", mode_str);
  99     return NULL;
 100 }
 101
 102 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
 103 {
 104     GuestFileHandle *gfh;
 105     int64_t handle;
 106
 107     handle = ga_get_fd_handle(ga_state, errp);
 108     if (handle < 0) {
 109         return -1;
 110     }
 111     gfh = g_new0(GuestFileHandle, 1);
 112     gfh->id = handle;
 113     gfh->fh = fh;
 114     QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
 115
 116     return handle;
 117 }
 118
 119 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
 120 {
 121     GuestFileHandle *gfh;
 122     QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
 123         if (gfh->id == id) {
 124             return gfh;
 125         }
 126     }
 127     error_setg(errp, "handle '%" PRId64 "' has not been found", id);
 128     return NULL;
 129 }
 130
 131 int64_t qmp_guest_file_open(const char *path, bool has_mode,
 132                             const char *mode, Error **errp)
 133 {
 134     int64_t fd;
 135     HANDLE fh;
 136     HANDLE templ_file = NULL;
 137     DWORD share_mode = FILE_SHARE_READ;
 138     DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
 139     LPSECURITY_ATTRIBUTES sa_attr = NULL;
 140     OpenFlags *guest_flags;
 141
 142     if (!has_mode) {
 143         mode = "r";
 144     }
 145     slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
 146     guest_flags = find_open_flag(mode);
 147     if (guest_flags == NULL) {
 148         error_setg(errp, "invalid file open mode");
 149         return -1;
 150     }
 151
 152     fh = CreateFile(path, guest_flags->desired_access, share_mode, sa_attr,
 153                     guest_flags->creation_disposition, flags_and_attr,
 154                     templ_file);
 155     if (fh == INVALID_HANDLE_VALUE) {
 156         error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
 157                          path);
 158         return -1;
 159     }
 160
 161     fd = guest_file_handle_add(fh, errp);
 162     if (fd < 0) {
 163         CloseHandle(&fh);
 164         error_setg(errp, "failed to add handle to qmp handle table");
 165         return -1;
 166     }
 167
 168     slog("guest-file-open, handle: % " PRId64, fd);
 169     return fd;
 170 }
 171
 172 void qmp_guest_file_close(int64_t handle, Error **errp)
 173 {
 174     bool ret;
 175     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 176     slog("guest-file-close called, handle: %" PRId64, handle);
 177     if (gfh == NULL) {
 178         return;
 179     }
 180     ret = CloseHandle(gfh->fh);
 181     if (!ret) {
 182         error_setg_win32(errp, GetLastError(), "failed close handle");
 183         return;
 184     }
 185
 186     QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
 187     g_free(gfh);
 188 }
 189
 190 static void acquire_privilege(const char *name, Error **errp)
 191 {
 192     HANDLE token = NULL;
 193     TOKEN_PRIVILEGES priv;
 194     Error *local_err = NULL;
 195
 196     if (OpenProcessToken(GetCurrentProcess(),
 197         TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
 198     {
 199         if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
 200             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 201                        "no luid for requested privilege");
 202             goto out;
 203         }
 204
 205         priv.PrivilegeCount = 1;
 206         priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
 207
 208         if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
 209             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 210                        "unable to acquire requested privilege");
 211             goto out;
 212         }
 213
 214     } else {
 215         error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 216                    "failed to open privilege token");
 217     }
 218
 219 out:
 220     if (token) {
 221         CloseHandle(token);
 222     }
 223     if (local_err) {
 224         error_propagate(errp, local_err);
 225     }
 226 }
 227
 228 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
 229                           Error **errp)
 230 {
 231     Error *local_err = NULL;
 232
 233     HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
 234     if (!thread) {
 235         error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 236                    "failed to dispatch asynchronous command");
 237         error_propagate(errp, local_err);
 238     }
 239 }
 240
 241 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
 242 {
 243     Error *local_err = NULL;
 244     UINT shutdown_flag = EWX_FORCE;
 245
 246     slog("guest-shutdown called, mode: %s", mode);
 247
 248     if (!has_mode || strcmp(mode, "powerdown") == 0) {
 249         shutdown_flag |= EWX_POWEROFF;
 250     } else if (strcmp(mode, "halt") == 0) {
 251         shutdown_flag |= EWX_SHUTDOWN;
 252     } else if (strcmp(mode, "reboot") == 0) {
 253         shutdown_flag |= EWX_REBOOT;
 254     } else {
 255         error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
 256                    "halt|powerdown|reboot");
 257         return;
 258     }
 259
 260     /* Request a shutdown privilege, but try to shut down the system
 261        anyway. */
 262     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 263     if (local_err) {
 264         error_propagate(errp, local_err);
 265         return;
 266     }
 267
 268     if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
 269         slog("guest-shutdown failed: %lu", GetLastError());
 270         error_setg(errp, QERR_UNDEFINED_ERROR);
 271     }
 272 }
 273
 274 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
 275                                    int64_t count, Error **errp)
 276 {
 277     GuestFileRead *read_data = NULL;
 278     guchar *buf;
 279     HANDLE fh;
 280     bool is_ok;
 281     DWORD read_count;
 282     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 283
 284     if (!gfh) {
 285         return NULL;
 286     }
 287     if (!has_count) {
 288         count = QGA_READ_COUNT_DEFAULT;
 289     } else if (count < 0) {
 290         error_setg(errp, "value '%" PRId64
 291                    "' is invalid for argument count", count);
 292         return NULL;
 293     }
 294
 295     fh = gfh->fh;
 296     buf = g_malloc0(count+1);
 297     is_ok = ReadFile(fh, buf, count, &read_count, NULL);
 298     if (!is_ok) {
 299         error_setg_win32(errp, GetLastError(), "failed to read file");
 300         slog("guest-file-read failed, handle %" PRId64, handle);
 301     } else {
 302         buf[read_count] = 0;
 303         read_data = g_new0(GuestFileRead, 1);
 304         read_data->count = (size_t)read_count;
 305         read_data->eof = read_count == 0;
 306
 307         if (read_count != 0) {
 308             read_data->buf_b64 = g_base64_encode(buf, read_count);
 309         }
 310     }
 311     g_free(buf);
 312
 313     return read_data;
 314 }
 315
 316 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
 317                                      bool has_count, int64_t count,
 318                                      Error **errp)
 319 {
 320     GuestFileWrite *write_data = NULL;
 321     guchar *buf;
 322     gsize buf_len;
 323     bool is_ok;
 324     DWORD write_count;
 325     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 326     HANDLE fh;
 327
 328     if (!gfh) {
 329         return NULL;
 330     }
 331     fh = gfh->fh;
 332     buf = g_base64_decode(buf_b64, &buf_len);
 333
 334     if (!has_count) {
 335         count = buf_len;
 336     } else if (count < 0 || count > buf_len) {
 337         error_setg(errp, "value '%" PRId64
 338                    "' is invalid for argument count", count);
 339         goto done;
 340     }
 341
 342     is_ok = WriteFile(fh, buf, count, &write_count, NULL);
 343     if (!is_ok) {
 344         error_setg_win32(errp, GetLastError(), "failed to write to file");
 345         slog("guest-file-write-failed, handle: %" PRId64, handle);
 346     } else {
 347         write_data = g_new0(GuestFileWrite, 1);
 348         write_data->count = (size_t) write_count;
 349     }
 350
 351 done:
 352     g_free(buf);
 353     return write_data;
 354 }
 355
 356 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
 357                                    int64_t whence, Error **errp)
 358 {
 359     GuestFileHandle *gfh;
 360     GuestFileSeek *seek_data;
 361     HANDLE fh;
 362     LARGE_INTEGER new_pos, off_pos;
 363     off_pos.QuadPart = offset;
 364     BOOL res;
 365     gfh = guest_file_handle_find(handle, errp);
 366     if (!gfh) {
 367         return NULL;
 368     }
 369
 370     fh = gfh->fh;
 371     res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
 372     if (!res) {
 373         error_setg_win32(errp, GetLastError(), "failed to seek file");
 374         return NULL;
 375     }
 376     seek_data = g_new0(GuestFileSeek, 1);
 377     seek_data->position = new_pos.QuadPart;
 378     return seek_data;
 379 }
 380
 381 void qmp_guest_file_flush(int64_t handle, Error **errp)
 382 {
 383     HANDLE fh;
 384     GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
 385     if (!gfh) {
 386         return;
 387     }
 388
 389     fh = gfh->fh;
 390     if (!FlushFileBuffers(fh)) {
 391         error_setg_win32(errp, GetLastError(), "failed to flush file");
 392     }
 393 }
 394
 395 #ifdef CONFIG_QGA_NTDDSCSI
 396
 397 static STORAGE_BUS_TYPE win2qemu[] = {
 398     [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
 399     [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
 400     [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
 401     [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
 402     [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
 403     [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
 404     [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
 405     [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
 406     [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
 407 #if (_WIN32_WINNT >= 0x0600)
 408     [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
 409     [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
 410     [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
 411     [BusTypeSd] =  GUEST_DISK_BUS_TYPE_SD,
 412     [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
 413 #endif
 414 #if (_WIN32_WINNT >= 0x0601)
 415     [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
 416     [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
 417 #endif
 418 };
 419
 420 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
 421 {
 422     if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) {
 423         return GUEST_DISK_BUS_TYPE_UNKNOWN;
 424     }
 425     return win2qemu[(int)bus];
 426 }
 427
 428 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
 429         0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
 430         0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
 431
 432 static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
 433 {
 434     HDEVINFO dev_info;
 435     SP_DEVINFO_DATA dev_info_data;
 436     DWORD size = 0;
 437     int i;
 438     char dev_name[MAX_PATH];
 439     char *buffer = NULL;
 440     GuestPCIAddress *pci = NULL;
 441     char *name = g_strdup(&guid[4]);
 442
 443     if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
 444         error_setg_win32(errp, GetLastError(), "failed to get dos device name");
 445         goto out;
 446     }
 447
 448     dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
 449                                    DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
 450     if (dev_info == INVALID_HANDLE_VALUE) {
 451         error_setg_win32(errp, GetLastError(), "failed to get devices tree");
 452         goto out;
 453     }
 454
 455     dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
 456     for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
 457         DWORD addr, bus, slot, func, dev, data, size2;
 458         while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 459                                             SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
 460                                             &data, (PBYTE)buffer, size,
 461                                             &size2)) {
 462             size = MAX(size, size2);
 463             if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
 464                 g_free(buffer);
 465                 /* Double the size to avoid problems on
 466                  * W2k MBCS systems per KB 888609.
 467                  * https://support.microsoft.com/en-us/kb/259695 */
 468                 buffer = g_malloc(size * 2);
 469             } else {
 470                 error_setg_win32(errp, GetLastError(),
 471                         "failed to get device name");
 472                 goto out;
 473             }
 474         }
 475
 476         if (g_strcmp0(buffer, dev_name)) {
 477             continue;
 478         }
 479
 480         /* There is no need to allocate buffer in the next functions. The size
 481          * is known and ULONG according to
 482          * https://support.microsoft.com/en-us/kb/253232
 483          * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
 484          */
 485         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 486                    SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
 487             break;
 488         }
 489
 490         /* The function retrieves the device's address. This value will be
 491          * transformed into device function and number */
 492         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 493                    SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
 494             break;
 495         }
 496
 497         /* This call returns UINumber of DEVICE_CAPABILITIES structure.
 498          * This number is typically a user-perceived slot number. */
 499         if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
 500                    SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
 501             break;
 502         }
 503
 504         /* SetupApi gives us the same information as driver with
 505          * IoGetDeviceProperty. According to Microsoft
 506          * https://support.microsoft.com/en-us/kb/253232
 507          * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
 508          * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
 509          * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
 510
 511         func = addr & 0x0000FFFF;
 512         dev = (addr >> 16) & 0x0000FFFF;
 513         pci = g_malloc0(sizeof(*pci));
 514         pci->domain = dev;
 515         pci->slot = slot;
 516         pci->function = func;
 517         pci->bus = bus;
 518         break;
 519     }
 520 out:
 521     g_free(buffer);
 522     g_free(name);
 523     return pci;
 524 }
 525
 526 static int get_disk_bus_type(HANDLE vol_h, Error **errp)
 527 {
 528     STORAGE_PROPERTY_QUERY query;
 529     STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
 530     DWORD received;
 531
 532     dev_desc = &buf;
 533     dev_desc->Size = sizeof(buf);
 534     query.PropertyId = StorageDeviceProperty;
 535     query.QueryType = PropertyStandardQuery;
 536
 537     if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
 538                          sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
 539                          dev_desc->Size, &received, NULL)) {
 540         error_setg_win32(errp, GetLastError(), "failed to get bus type");
 541         return -1;
 542     }
 543
 544     return dev_desc->BusType;
 545 }
 546
 547 /* VSS provider works with volumes, thus there is no difference if
 548  * the volume consist of spanned disks. Info about the first disk in the
 549  * volume is returned for the spanned disk group (LVM) */
 550 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 551 {
 552     GuestDiskAddressList *list = NULL;
 553     GuestDiskAddress *disk;
 554     SCSI_ADDRESS addr, *scsi_ad;
 555     DWORD len;
 556     int bus;
 557     HANDLE vol_h;
 558
 559     scsi_ad = &addr;
 560     char *name = g_strndup(guid, strlen(guid)-1);
 561
 562     vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
 563                        0, NULL);
 564     if (vol_h == INVALID_HANDLE_VALUE) {
 565         error_setg_win32(errp, GetLastError(), "failed to open volume");
 566         goto out_free;
 567     }
 568
 569     bus = get_disk_bus_type(vol_h, errp);
 570     if (bus < 0) {
 571         goto out_close;
 572     }
 573
 574     disk = g_malloc0(sizeof(*disk));
 575     disk->bus_type = find_bus_type(bus);
 576     if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
 577 #if (_WIN32_WINNT >= 0x0600)
 578             /* This bus type is not supported before Windows Server 2003 SP1 */
 579             || bus == BusTypeSas
 580 #endif
 581         ) {
 582         /* We are able to use the same ioctls for different bus types
 583          * according to Microsoft docs
 584          * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
 585         if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
 586                             sizeof(SCSI_ADDRESS), &len, NULL)) {
 587             disk->unit = addr.Lun;
 588             disk->target = addr.TargetId;
 589             disk->bus = addr.PathId;
 590             disk->pci_controller = get_pci_info(name, errp);
 591         }
 592         /* We do not set error in this case, because we still have enough
 593          * information about volume. */
 594     } else {
 595          disk->pci_controller = NULL;
 596     }
 597
 598     list = g_malloc0(sizeof(*list));
 599     list->value = disk;
 600     list->next = NULL;
 601 out_close:
 602     CloseHandle(vol_h);
 603 out_free:
 604     g_free(name);
 605     return list;
 606 }
 607
 608 #else
 609
 610 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
 611 {
 612     return NULL;
 613 }
 614
 615 #endif /* CONFIG_QGA_NTDDSCSI */
 616
 617 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
 618 {
 619     DWORD info_size;
 620     char mnt, *mnt_point;
 621     char fs_name[32];
 622     char vol_info[MAX_PATH+1];
 623     size_t len;
 624     GuestFilesystemInfo *fs = NULL;
 625
 626     GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
 627     if (GetLastError() != ERROR_MORE_DATA) {
 628         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 629         return NULL;
 630     }
 631
 632     mnt_point = g_malloc(info_size + 1);
 633     if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
 634                                          &info_size)) {
 635         error_setg_win32(errp, GetLastError(), "failed to get volume name");
 636         goto free;
 637     }
 638
 639     len = strlen(mnt_point);
 640     mnt_point[len] = '\\';
 641     mnt_point[len+1] = 0;
 642     if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
 643                               NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
 644         if (GetLastError() != ERROR_NOT_READY) {
 645             error_setg_win32(errp, GetLastError(), "failed to get volume info");
 646         }
 647         goto free;
 648     }
 649
 650     fs_name[sizeof(fs_name) - 1] = 0;
 651     fs = g_malloc(sizeof(*fs));
 652     fs->name = g_strdup(guid);
 653     if (len == 0) {
 654         fs->mountpoint = g_strdup("System Reserved");
 655     } else {
 656         fs->mountpoint = g_strndup(mnt_point, len);
 657     }
 658     fs->type = g_strdup(fs_name);
 659     fs->disk = build_guest_disk_info(guid, errp);
 660 free:
 661     g_free(mnt_point);
 662     return fs;
 663 }
 664
 665 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
 666 {
 667     HANDLE vol_h;
 668     GuestFilesystemInfoList *new, *ret = NULL;
 669     char guid[256];
 670
 671     vol_h = FindFirstVolume(guid, sizeof(guid));
 672     if (vol_h == INVALID_HANDLE_VALUE) {
 673         error_setg_win32(errp, GetLastError(), "failed to find any volume");
 674         return NULL;
 675     }
 676
 677     do {
 678         GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
 679         if (info == NULL) {
 680             continue;
 681         }
 682         new = g_malloc(sizeof(*ret));
 683         new->value = info;
 684         new->next = ret;
 685         ret = new;
 686     } while (FindNextVolume(vol_h, guid, sizeof(guid)));
 687
 688     if (GetLastError() != ERROR_NO_MORE_FILES) {
 689         error_setg_win32(errp, GetLastError(), "failed to find next volume");
 690     }
 691
 692     FindVolumeClose(vol_h);
 693     return ret;
 694 }
 695
 696 /*
 697  * Return status of freeze/thaw
 698  */
 699 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
 700 {
 701     if (!vss_initialized()) {
 702         error_setg(errp, QERR_UNSUPPORTED);
 703         return 0;
 704     }
 705
 706     if (ga_is_frozen(ga_state)) {
 707         return GUEST_FSFREEZE_STATUS_FROZEN;
 708     }
 709
 710     return GUEST_FSFREEZE_STATUS_THAWED;
 711 }
 712
 713 /*
 714  * Freeze local file systems using Volume Shadow-copy Service.
 715  * The frozen state is limited for up to 10 seconds by VSS.
 716  */
 717 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
 718 {
 719     int i;
 720     Error *local_err = NULL;
 721
 722     if (!vss_initialized()) {
 723         error_setg(errp, QERR_UNSUPPORTED);
 724         return 0;
 725     }
 726
 727     slog("guest-fsfreeze called");
 728
 729     /* cannot risk guest agent blocking itself on a write in this state */
 730     ga_set_frozen(ga_state);
 731
 732     qga_vss_fsfreeze(&i, &local_err, true);
 733     if (local_err) {
 734         error_propagate(errp, local_err);
 735         goto error;
 736     }
 737
 738     return i;
 739
 740 error:
 741     local_err = NULL;
 742     qmp_guest_fsfreeze_thaw(&local_err);
 743     if (local_err) {
 744         g_debug("cleanup thaw: %s", error_get_pretty(local_err));
 745         error_free(local_err);
 746     }
 747     return 0;
 748 }
 749
 750 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
 751                                        strList *mountpoints,
 752                                        Error **errp)
 753 {
 754     error_setg(errp, QERR_UNSUPPORTED);
 755
 756     return 0;
 757 }
 758
 759 /*
 760  * Thaw local file systems using Volume Shadow-copy Service.
 761  */
 762 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
 763 {
 764     int i;
 765
 766     if (!vss_initialized()) {
 767         error_setg(errp, QERR_UNSUPPORTED);
 768         return 0;
 769     }
 770
 771     qga_vss_fsfreeze(&i, errp, false);
 772
 773     ga_unset_frozen(ga_state);
 774     return i;
 775 }
 776
 777 static void guest_fsfreeze_cleanup(void)
 778 {
 779     Error *err = NULL;
 780
 781     if (!vss_initialized()) {
 782         return;
 783     }
 784
 785     if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
 786         qmp_guest_fsfreeze_thaw(&err);
 787         if (err) {
 788             slog("failed to clean up frozen filesystems: %s",
 789                  error_get_pretty(err));
 790             error_free(err);
 791         }
 792     }
 793
 794     vss_deinit(true);
 795 }
 796
 797 /*
 798  * Walk list of mounted file systems in the guest, and discard unused
 799  * areas.
 800  */
 801 GuestFilesystemTrimResponse *
 802 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
 803 {
 804     error_setg(errp, QERR_UNSUPPORTED);
 805     return NULL;
 806 }
 807
 808 typedef enum {
 809     GUEST_SUSPEND_MODE_DISK,
 810     GUEST_SUSPEND_MODE_RAM
 811 } GuestSuspendMode;
 812
 813 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
 814 {
 815     SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
 816     Error *local_err = NULL;
 817
 818     ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
 819     if (!GetPwrCapabilities(&sys_pwr_caps)) {
 820         error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 821                    "failed to determine guest suspend capabilities");
 822         goto out;
 823     }
 824
 825     switch (mode) {
 826     case GUEST_SUSPEND_MODE_DISK:
 827         if (!sys_pwr_caps.SystemS4) {
 828             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 829                        "suspend-to-disk not supported by OS");
 830         }
 831         break;
 832     case GUEST_SUSPEND_MODE_RAM:
 833         if (!sys_pwr_caps.SystemS3) {
 834             error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
 835                        "suspend-to-ram not supported by OS");
 836         }
 837         break;
 838     default:
 839         error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
 840                    "GuestSuspendMode");
 841     }
 842
 843 out:
 844     if (local_err) {
 845         error_propagate(errp, local_err);
 846     }
 847 }
 848
 849 static DWORD WINAPI do_suspend(LPVOID opaque)
 850 {
 851     GuestSuspendMode *mode = opaque;
 852     DWORD ret = 0;
 853
 854     if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
 855         slog("failed to suspend guest, %lu", GetLastError());
 856         ret = -1;
 857     }
 858     g_free(mode);
 859     return ret;
 860 }
 861
 862 void qmp_guest_suspend_disk(Error **errp)
 863 {
 864     Error *local_err = NULL;
 865     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 866
 867     *mode = GUEST_SUSPEND_MODE_DISK;
 868     check_suspend_mode(*mode, &local_err);
 869     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 870     execute_async(do_suspend, mode, &local_err);
 871
 872     if (local_err) {
 873         error_propagate(errp, local_err);
 874         g_free(mode);
 875     }
 876 }
 877
 878 void qmp_guest_suspend_ram(Error **errp)
 879 {
 880     Error *local_err = NULL;
 881     GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
 882
 883     *mode = GUEST_SUSPEND_MODE_RAM;
 884     check_suspend_mode(*mode, &local_err);
 885     acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
 886     execute_async(do_suspend, mode, &local_err);
 887
 888     if (local_err) {
 889         error_propagate(errp, local_err);
 890         g_free(mode);
 891     }
 892 }
 893
 894 void qmp_guest_suspend_hybrid(Error **errp)
 895 {
 896     error_setg(errp, QERR_UNSUPPORTED);
 897 }
 898
 899 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
 900 {
 901     IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
 902     ULONG adptr_addrs_len = 0;
 903     DWORD ret;
 904
 905     /* Call the first time to get the adptr_addrs_len. */
 906     GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 907                          NULL, adptr_addrs, &adptr_addrs_len);
 908
 909     adptr_addrs = g_malloc(adptr_addrs_len);
 910     ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
 911                                NULL, adptr_addrs, &adptr_addrs_len);
 912     if (ret != ERROR_SUCCESS) {
 913         error_setg_win32(errp, ret, "failed to get adapters addresses");
 914         g_free(adptr_addrs);
 915         adptr_addrs = NULL;
 916     }
 917     return adptr_addrs;
 918 }
 919
 920 static char *guest_wctomb_dup(WCHAR *wstr)
 921 {
 922     char *str;
 923     size_t i;
 924
 925     i = wcslen(wstr) + 1;
 926     str = g_malloc(i);
 927     WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
 928                         wstr, -1, str, i, NULL, NULL);
 929     return str;
 930 }
 931
 932 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
 933                                Error **errp)
 934 {
 935     char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
 936     DWORD len;
 937     int ret;
 938
 939     if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
 940             ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
 941         len = sizeof(addr_str);
 942         ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
 943                                  ip_addr->Address.iSockaddrLength,
 944                                  NULL,
 945                                  addr_str,
 946                                  &len);
 947         if (ret != 0) {
 948             error_setg_win32(errp, WSAGetLastError(),
 949                 "failed address presentation form conversion");
 950             return NULL;
 951         }
 952         return g_strdup(addr_str);
 953     }
 954     return NULL;
 955 }
 956
 957 #if (_WIN32_WINNT >= 0x0600)
 958 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
 959 {
 960     /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
 961      * field to obtain the prefix.
 962      */
 963     return ip_addr->OnLinkPrefixLength;
 964 }
 965 #else
 966 /* When using the Windows XP and 2003 build environment, do the best we can to
 967  * figure out the prefix.
 968  */
 969 static IP_ADAPTER_INFO *guest_get_adapters_info(void)
 970 {
 971     IP_ADAPTER_INFO *adptr_info = NULL;
 972     ULONG adptr_info_len = 0;
 973     DWORD ret;
 974
 975     /* Call the first time to get the adptr_info_len. */
 976     GetAdaptersInfo(adptr_info, &adptr_info_len);
 977
 978     adptr_info = g_malloc(adptr_info_len);
 979     ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
 980     if (ret != ERROR_SUCCESS) {
 981         g_free(adptr_info);
 982         adptr_info = NULL;
 983     }
 984     return adptr_info;
 985 }
 986
 987 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
 988 {
 989     int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
 990     IP_ADAPTER_INFO *adptr_info, *info;
 991     IP_ADDR_STRING *ip;
 992     struct in_addr *p;
 993
 994     if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
 995         return prefix;
 996     }
 997     adptr_info = guest_get_adapters_info();
 998     if (adptr_info == NULL) {
 999         return prefix;
1000     }
1001
1002     /* Match up the passed in ip_addr with one found in adaptr_info.
1003      * The matching one in adptr_info will have the netmask.
1004      */
1005     p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
1006     for (info = adptr_info; info; info = info->Next) {
1007         for (ip = &info->IpAddressList; ip; ip = ip->Next) {
1008             if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
1009                 prefix = ctpop32(inet_addr(ip->IpMask.String));
1010                 goto out;
1011             }
1012         }
1013     }
1014 out:
1015     g_free(adptr_info);
1016     return prefix;
1017 }
1018 #endif
1019
1020 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1021 {
1022     IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1023     IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1024     GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1025     GuestIpAddressList *head_addr, *cur_addr;
1026     GuestNetworkInterfaceList *info;
1027     GuestIpAddressList *address_item = NULL;
1028     unsigned char *mac_addr;
1029     char *addr_str;
1030     WORD wsa_version;
1031     WSADATA wsa_data;
1032     int ret;
1033
1034     adptr_addrs = guest_get_adapters_addresses(errp);
1035     if (adptr_addrs == NULL) {
1036         return NULL;
1037     }
1038
1039     /* Make WSA APIs available. */
1040     wsa_version = MAKEWORD(2, 2);
1041     ret = WSAStartup(wsa_version, &wsa_data);
1042     if (ret != 0) {
1043         error_setg_win32(errp, ret, "failed socket startup");
1044         goto out;
1045     }
1046
1047     for (addr = adptr_addrs; addr; addr = addr->Next) {
1048         info = g_malloc0(sizeof(*info));
1049
1050         if (cur_item == NULL) {
1051             head = cur_item = info;
1052         } else {
1053             cur_item->next = info;
1054             cur_item = info;
1055         }
1056
1057         info->value = g_malloc0(sizeof(*info->value));
1058         info->value->name = guest_wctomb_dup(addr->FriendlyName);
1059
1060         if (addr->PhysicalAddressLength != 0) {
1061             mac_addr = addr->PhysicalAddress;
1062
1063             info->value->hardware_address =
1064                 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1065                                 (int) mac_addr[0], (int) mac_addr[1],
1066                                 (int) mac_addr[2], (int) mac_addr[3],
1067                                 (int) mac_addr[4], (int) mac_addr[5]);
1068
1069             info->value->has_hardware_address = true;
1070         }
1071
1072         head_addr = NULL;
1073         cur_addr = NULL;
1074         for (ip_addr = addr->FirstUnicastAddress;
1075                 ip_addr;
1076                 ip_addr = ip_addr->Next) {
1077             addr_str = guest_addr_to_str(ip_addr, errp);
1078             if (addr_str == NULL) {
1079                 continue;
1080             }
1081
1082             address_item = g_malloc0(sizeof(*address_item));
1083
1084             if (!cur_addr) {
1085                 head_addr = cur_addr = address_item;
1086             } else {
1087                 cur_addr->next = address_item;
1088                 cur_addr = address_item;
1089             }
1090
1091             address_item->value = g_malloc0(sizeof(*address_item->value));
1092             address_item->value->ip_address = addr_str;
1093             address_item->value->prefix = guest_ip_prefix(ip_addr);
1094             if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1095                 address_item->value->ip_address_type =
1096                     GUEST_IP_ADDRESS_TYPE_IPV4;
1097             } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1098                 address_item->value->ip_address_type =
1099                     GUEST_IP_ADDRESS_TYPE_IPV6;
1100             }
1101         }
1102         if (head_addr) {
1103             info->value->has_ip_addresses = true;
1104             info->value->ip_addresses = head_addr;
1105         }
1106     }
1107     WSACleanup();
1108 out:
1109     g_free(adptr_addrs);
1110     return head;
1111 }
1112
1113 int64_t qmp_guest_get_time(Error **errp)
1114 {
1115     SYSTEMTIME ts = {0};
1116     int64_t time_ns;
1117     FILETIME tf;
1118
1119     GetSystemTime(&ts);
1120     if (ts.wYear < 1601 || ts.wYear > 30827) {
1121         error_setg(errp, "Failed to get time");
1122         return -1;
1123     }
1124
1125     if (!SystemTimeToFileTime(&ts, &tf)) {
1126         error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1127         return -1;
1128     }
1129
1130     time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1131                 - W32_FT_OFFSET) * 100;
1132
1133     return time_ns;
1134 }
1135
1136 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1137 {
1138     Error *local_err = NULL;
1139     SYSTEMTIME ts;
1140     FILETIME tf;
1141     LONGLONG time;
1142
1143     if (!has_time) {
1144         /* Unfortunately, Windows libraries don't provide an easy way to access
1145          * RTC yet:
1146          *
1147          * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1148          */
1149         error_setg(errp, "Time argument is required on this platform");
1150         return;
1151     }
1152
1153     /* Validate time passed by user. */
1154     if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1155         error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1156         return;
1157     }
1158
1159     time = time_ns / 100 + W32_FT_OFFSET;
1160
1161     tf.dwLowDateTime = (DWORD) time;
1162     tf.dwHighDateTime = (DWORD) (time >> 32);
1163
1164     if (!FileTimeToSystemTime(&tf, &ts)) {
1165         error_setg(errp, "Failed to convert system time %d",
1166                    (int)GetLastError());
1167         return;
1168     }
1169
1170     acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1171     if (local_err) {
1172         error_propagate(errp, local_err);
1173         return;
1174     }
1175
1176     if (!SetSystemTime(&ts)) {
1177         error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1178         return;
1179     }
1180 }
1181
1182 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1183 {
1184     error_setg(errp, QERR_UNSUPPORTED);
1185     return NULL;
1186 }
1187
1188 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1189 {
1190     error_setg(errp, QERR_UNSUPPORTED);
1191     return -1;
1192 }
1193
1194 static gchar *
1195 get_net_error_message(gint error)
1196 {
1197     HMODULE module = NULL;
1198     gchar *retval = NULL;
1199     wchar_t *msg = NULL;
1200     int flags, nchars;
1201
1202     flags = FORMAT_MESSAGE_ALLOCATE_BUFFER
1203         |FORMAT_MESSAGE_IGNORE_INSERTS
1204         |FORMAT_MESSAGE_FROM_SYSTEM;
1205
1206     if (error >= NERR_BASE && error <= MAX_NERR) {
1207         module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1208
1209         if (module != NULL) {
1210             flags |= FORMAT_MESSAGE_FROM_HMODULE;
1211         }
1212     }
1213
1214     FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1215
1216     if (msg != NULL) {
1217         nchars = wcslen(msg);
1218
1219         if (nchars > 2 && msg[nchars-1] == '\n' && msg[nchars-2] == '\r') {
1220             msg[nchars-2] = '\0';
1221         }
1222
1223         retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1224
1225         LocalFree(msg);
1226     }
1227
1228     if (module != NULL) {
1229         FreeLibrary(module);
1230     }
1231
1232     return retval;
1233 }
1234
1235 void qmp_guest_set_user_password(const char *username,
1236                                  const char *password,
1237                                  bool crypted,
1238                                  Error **errp)
1239 {
1240     NET_API_STATUS nas;
1241     char *rawpasswddata = NULL;
1242     size_t rawpasswdlen;
1243     wchar_t *user, *wpass;
1244     USER_INFO_1003 pi1003 = { 0, };
1245
1246     if (crypted) {
1247         error_setg(errp, QERR_UNSUPPORTED);
1248         return;
1249     }
1250
1251     rawpasswddata = (char *)g_base64_decode(password, &rawpasswdlen);
1252     rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1253     rawpasswddata[rawpasswdlen] = '\0';
1254
1255     user = g_utf8_to_utf16(username, -1, NULL, NULL, NULL);
1256     wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, NULL);
1257
1258     pi1003.usri1003_password = wpass;
1259     nas = NetUserSetInfo(NULL, user,
1260                          1003, (LPBYTE)&pi1003,
1261                          NULL);
1262
1263     if (nas != NERR_Success) {
1264         gchar *msg = get_net_error_message(nas);
1265         error_setg(errp, "failed to set password: %s", msg);
1266         g_free(msg);
1267     }
1268
1269     g_free(user);
1270     g_free(wpass);
1271     g_free(rawpasswddata);
1272 }
1273
1274 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1275 {
1276     error_setg(errp, QERR_UNSUPPORTED);
1277     return NULL;
1278 }
1279
1280 GuestMemoryBlockResponseList *
1281 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1282 {
1283     error_setg(errp, QERR_UNSUPPORTED);
1284     return NULL;
1285 }
1286
1287 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1288 {
1289     error_setg(errp, QERR_UNSUPPORTED);
1290     return NULL;
1291 }
1292
1293 /* add unsupported commands to the blacklist */
1294 GList *ga_command_blacklist_init(GList *blacklist)
1295 {
1296     const char *list_unsupported[] = {
1297         "guest-suspend-hybrid",
1298         "guest-get-vcpus", "guest-set-vcpus",
1299         "guest-get-memory-blocks", "guest-set-memory-blocks",
1300         "guest-get-memory-block-size",
1301         "guest-fsfreeze-freeze-list",
1302         "guest-fstrim", NULL};
1303     char **p = (char **)list_unsupported;
1304
1305     while (*p) {
1306         blacklist = g_list_append(blacklist, g_strdup(*p++));
1307     }
1308
1309     if (!vss_init(true)) {
1310         g_debug("vss_init failed, vss commands are going to be disabled");
1311         const char *list[] = {
1312             "guest-get-fsinfo", "guest-fsfreeze-status",
1313             "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1314         p = (char **)list;
1315
1316         while (*p) {
1317             blacklist = g_list_append(blacklist, g_strdup(*p++));
1318         }
1319     }
1320
1321     return blacklist;
1322 }
1323
1324 /* register init/cleanup routines for stateful command groups */
1325 void ga_command_state_init(GAState *s, GACommandState *cs)
1326 {
1327     if (!vss_initialized()) {
1328         ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1329     }
1330 }