1 /* 2 * QEMU Guest Agent win32-specific command implementations 3 * 4 * Copyright IBM Corp. 2012 5 * 6 * Authors: 7 * Michael Roth <mdroth@linux.vnet.ibm.com> 8 * Gal Hammer <ghammer@redhat.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 */ 13 #include "qemu/osdep.h" 14 15 #include <wtypes.h> 16 #include <powrprof.h> 17 #include <winsock2.h> 18 #include <ws2tcpip.h> 19 #include <iptypes.h> 20 #include <iphlpapi.h> 21 #include <winioctl.h> 22 #include <ntddscsi.h> 23 #include <setupapi.h> 24 #include <cfgmgr32.h> 25 #include <initguid.h> 26 #include <devpropdef.h> 27 #include <lm.h> 28 #include <wtsapi32.h> 29 #include <wininet.h> 30 31 #include "guest-agent-core.h" 32 #include "vss-win32.h" 33 #include "qga-qapi-commands.h" 34 #include "qapi/error.h" 35 #include "qapi/qmp/qerror.h" 36 #include "qemu/queue.h" 37 #include "qemu/host-utils.h" 38 #include "qemu/base64.h" 39 #include "commands-common.h" 40 41 /* 42 * The following should be in devpkey.h, but it isn't. The key names were 43 * prefixed to avoid (future) name clashes. Once the definitions get into 44 * mingw the following lines can be removed. 45 */ 46 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5, 47 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10); 48 /* DEVPROP_TYPE_STRING */ 49 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c, 50 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3); 51 /* DEVPROP_TYPE_STRING_LIST */ 52 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d, 53 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2); 54 /* DEVPROP_TYPE_FILETIME */ 55 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d, 56 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3); 57 /* DEVPROP_TYPE_STRING */ 58 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */ 59 #ifndef CM_Get_DevNode_Property 60 #pragma GCC diagnostic push 61 #pragma GCC diagnostic ignored "-Wredundant-decls" 62 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW( 63 DEVINST dnDevInst, 64 CONST DEVPROPKEY * PropertyKey, 65 DEVPROPTYPE * PropertyType, 66 PBYTE PropertyBuffer, 67 PULONG PropertyBufferSize, 68 ULONG ulFlags 69 ); 70 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW 71 #pragma GCC diagnostic pop 72 #endif 73 74 #ifndef SHTDN_REASON_FLAG_PLANNED 75 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 76 #endif 77 78 /* multiple of 100 nanoseconds elapsed between windows baseline 79 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 80 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 81 (365 * (1970 - 1601) + \ 82 (1970 - 1601) / 4 - 3)) 83 84 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 85 86 struct GuestFileHandle { 87 int64_t id; 88 HANDLE fh; 89 QTAILQ_ENTRY(GuestFileHandle) next; 90 }; 91 92 static struct { 93 QTAILQ_HEAD(, GuestFileHandle) filehandles; 94 } guest_file_state = { 95 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 96 }; 97 98 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 99 100 typedef struct OpenFlags { 101 const char *forms; 102 DWORD desired_access; 103 DWORD creation_disposition; 104 } OpenFlags; 105 static OpenFlags guest_file_open_modes[] = { 106 {"r", GENERIC_READ, OPEN_EXISTING}, 107 {"rb", GENERIC_READ, OPEN_EXISTING}, 108 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 109 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 110 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 111 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 112 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 113 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 114 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 115 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 116 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 117 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 118 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 119 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS } 120 }; 121 122 #define debug_error(msg) do { \ 123 char *suffix = g_win32_error_message(GetLastError()); \ 124 g_debug("%s: %s", (msg), suffix); \ 125 g_free(suffix); \ 126 } while (0) 127 128 static OpenFlags *find_open_flag(const char *mode_str) 129 { 130 int mode; 131 Error **errp = NULL; 132 133 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 134 OpenFlags *flags = guest_file_open_modes + mode; 135 136 if (strcmp(flags->forms, mode_str) == 0) { 137 return flags; 138 } 139 } 140 141 error_setg(errp, "invalid file open mode '%s'", mode_str); 142 return NULL; 143 } 144 145 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 146 { 147 GuestFileHandle *gfh; 148 int64_t handle; 149 150 handle = ga_get_fd_handle(ga_state, errp); 151 if (handle < 0) { 152 return -1; 153 } 154 gfh = g_new0(GuestFileHandle, 1); 155 gfh->id = handle; 156 gfh->fh = fh; 157 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 158 159 return handle; 160 } 161 162 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 163 { 164 GuestFileHandle *gfh; 165 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 166 if (gfh->id == id) { 167 return gfh; 168 } 169 } 170 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 171 return NULL; 172 } 173 174 static void handle_set_nonblocking(HANDLE fh) 175 { 176 DWORD file_type, pipe_state; 177 file_type = GetFileType(fh); 178 if (file_type != FILE_TYPE_PIPE) { 179 return; 180 } 181 /* If file_type == FILE_TYPE_PIPE, according to MSDN 182 * the specified file is socket or named pipe */ 183 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 184 NULL, NULL, NULL, 0)) { 185 return; 186 } 187 /* The fd is named pipe fd */ 188 if (pipe_state & PIPE_NOWAIT) { 189 return; 190 } 191 192 pipe_state |= PIPE_NOWAIT; 193 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 194 } 195 196 int64_t qmp_guest_file_open(const char *path, const char *mode, Error **errp) 197 { 198 int64_t fd = -1; 199 HANDLE fh; 200 HANDLE templ_file = NULL; 201 DWORD share_mode = FILE_SHARE_READ; 202 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 203 LPSECURITY_ATTRIBUTES sa_attr = NULL; 204 OpenFlags *guest_flags; 205 GError *gerr = NULL; 206 wchar_t *w_path = NULL; 207 208 if (!mode) { 209 mode = "r"; 210 } 211 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 212 guest_flags = find_open_flag(mode); 213 if (guest_flags == NULL) { 214 error_setg(errp, "invalid file open mode"); 215 goto done; 216 } 217 218 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr); 219 if (!w_path) { 220 goto done; 221 } 222 223 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr, 224 guest_flags->creation_disposition, flags_and_attr, 225 templ_file); 226 if (fh == INVALID_HANDLE_VALUE) { 227 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 228 path); 229 goto done; 230 } 231 232 /* set fd non-blocking to avoid common use cases (like reading from a 233 * named pipe) from hanging the agent 234 */ 235 handle_set_nonblocking(fh); 236 237 fd = guest_file_handle_add(fh, errp); 238 if (fd < 0) { 239 CloseHandle(fh); 240 error_setg(errp, "failed to add handle to qmp handle table"); 241 goto done; 242 } 243 244 slog("guest-file-open, handle: % " PRId64, fd); 245 246 done: 247 if (gerr) { 248 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 249 g_error_free(gerr); 250 } 251 g_free(w_path); 252 return fd; 253 } 254 255 void qmp_guest_file_close(int64_t handle, Error **errp) 256 { 257 bool ret; 258 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 259 slog("guest-file-close called, handle: %" PRId64, handle); 260 if (gfh == NULL) { 261 return; 262 } 263 ret = CloseHandle(gfh->fh); 264 if (!ret) { 265 error_setg_win32(errp, GetLastError(), "failed close handle"); 266 return; 267 } 268 269 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 270 g_free(gfh); 271 } 272 273 static void acquire_privilege(const char *name, Error **errp) 274 { 275 HANDLE token = NULL; 276 TOKEN_PRIVILEGES priv; 277 278 if (OpenProcessToken(GetCurrentProcess(), 279 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) 280 { 281 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 282 error_setg(errp, QERR_QGA_COMMAND_FAILED, 283 "no luid for requested privilege"); 284 goto out; 285 } 286 287 priv.PrivilegeCount = 1; 288 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 289 290 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 291 error_setg(errp, QERR_QGA_COMMAND_FAILED, 292 "unable to acquire requested privilege"); 293 goto out; 294 } 295 296 } else { 297 error_setg(errp, QERR_QGA_COMMAND_FAILED, 298 "failed to open privilege token"); 299 } 300 301 out: 302 if (token) { 303 CloseHandle(token); 304 } 305 } 306 307 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 308 Error **errp) 309 { 310 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 311 if (!thread) { 312 error_setg(errp, QERR_QGA_COMMAND_FAILED, 313 "failed to dispatch asynchronous command"); 314 } 315 } 316 317 void qmp_guest_shutdown(const char *mode, Error **errp) 318 { 319 Error *local_err = NULL; 320 UINT shutdown_flag = EWX_FORCE; 321 322 slog("guest-shutdown called, mode: %s", mode); 323 324 if (!mode || strcmp(mode, "powerdown") == 0) { 325 shutdown_flag |= EWX_POWEROFF; 326 } else if (strcmp(mode, "halt") == 0) { 327 shutdown_flag |= EWX_SHUTDOWN; 328 } else if (strcmp(mode, "reboot") == 0) { 329 shutdown_flag |= EWX_REBOOT; 330 } else { 331 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 332 "'halt', 'powerdown', or 'reboot'"); 333 return; 334 } 335 336 /* Request a shutdown privilege, but try to shut down the system 337 anyway. */ 338 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 339 if (local_err) { 340 error_propagate(errp, local_err); 341 return; 342 } 343 344 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 345 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 346 slog("guest-shutdown failed: %s", emsg); 347 error_setg_win32(errp, GetLastError(), "guest-shutdown failed"); 348 } 349 } 350 351 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 352 int64_t count, Error **errp) 353 { 354 GuestFileRead *read_data = NULL; 355 guchar *buf; 356 HANDLE fh = gfh->fh; 357 bool is_ok; 358 DWORD read_count; 359 360 buf = g_malloc0(count + 1); 361 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 362 if (!is_ok) { 363 error_setg_win32(errp, GetLastError(), "failed to read file"); 364 } else { 365 buf[read_count] = 0; 366 read_data = g_new0(GuestFileRead, 1); 367 read_data->count = (size_t)read_count; 368 read_data->eof = read_count == 0; 369 370 if (read_count != 0) { 371 read_data->buf_b64 = g_base64_encode(buf, read_count); 372 } 373 } 374 g_free(buf); 375 376 return read_data; 377 } 378 379 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 380 bool has_count, int64_t count, 381 Error **errp) 382 { 383 GuestFileWrite *write_data = NULL; 384 guchar *buf; 385 gsize buf_len; 386 bool is_ok; 387 DWORD write_count; 388 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 389 HANDLE fh; 390 391 if (!gfh) { 392 return NULL; 393 } 394 fh = gfh->fh; 395 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 396 if (!buf) { 397 return NULL; 398 } 399 400 if (!has_count) { 401 count = buf_len; 402 } else if (count < 0 || count > buf_len) { 403 error_setg(errp, "value '%" PRId64 404 "' is invalid for argument count", count); 405 goto done; 406 } 407 408 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 409 if (!is_ok) { 410 error_setg_win32(errp, GetLastError(), "failed to write to file"); 411 slog("guest-file-write-failed, handle: %" PRId64, handle); 412 } else { 413 write_data = g_new0(GuestFileWrite, 1); 414 write_data->count = (size_t) write_count; 415 } 416 417 done: 418 g_free(buf); 419 return write_data; 420 } 421 422 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 423 GuestFileWhence *whence_code, 424 Error **errp) 425 { 426 GuestFileHandle *gfh; 427 GuestFileSeek *seek_data; 428 HANDLE fh; 429 LARGE_INTEGER new_pos, off_pos; 430 off_pos.QuadPart = offset; 431 BOOL res; 432 int whence; 433 Error *err = NULL; 434 435 gfh = guest_file_handle_find(handle, errp); 436 if (!gfh) { 437 return NULL; 438 } 439 440 /* We stupidly exposed 'whence':'int' in our qapi */ 441 whence = ga_parse_whence(whence_code, &err); 442 if (err) { 443 error_propagate(errp, err); 444 return NULL; 445 } 446 447 fh = gfh->fh; 448 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 449 if (!res) { 450 error_setg_win32(errp, GetLastError(), "failed to seek file"); 451 return NULL; 452 } 453 seek_data = g_new0(GuestFileSeek, 1); 454 seek_data->position = new_pos.QuadPart; 455 return seek_data; 456 } 457 458 void qmp_guest_file_flush(int64_t handle, Error **errp) 459 { 460 HANDLE fh; 461 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 462 if (!gfh) { 463 return; 464 } 465 466 fh = gfh->fh; 467 if (!FlushFileBuffers(fh)) { 468 error_setg_win32(errp, GetLastError(), "failed to flush file"); 469 } 470 } 471 472 static GuestDiskBusType win2qemu[] = { 473 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 474 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 475 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 476 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 477 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 478 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 479 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 480 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 481 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 482 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 483 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 484 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 485 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 486 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 487 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 488 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 489 /* 490 * BusTypeSpaces currently is not supported 491 */ 492 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN, 493 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME, 494 }; 495 496 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 497 { 498 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 499 return GUEST_DISK_BUS_TYPE_UNKNOWN; 500 } 501 return win2qemu[(int)bus]; 502 } 503 504 DEFINE_GUID(GUID_DEVINTERFACE_DISK, 505 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 506 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 507 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT, 508 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82, 509 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 510 511 static void get_pci_address_for_device(GuestPCIAddress *pci, 512 HDEVINFO dev_info) 513 { 514 SP_DEVINFO_DATA dev_info_data; 515 DWORD j; 516 DWORD size; 517 bool partial_pci = false; 518 519 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 520 521 for (j = 0; 522 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data); 523 j++) { 524 DWORD addr, bus, ui_slot, type; 525 int func, slot; 526 size = sizeof(DWORD); 527 528 /* 529 * There is no need to allocate buffer in the next functions. The 530 * size is known and ULONG according to 531 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 532 */ 533 if (!SetupDiGetDeviceRegistryProperty( 534 dev_info, &dev_info_data, SPDRP_BUSNUMBER, 535 &type, (PBYTE)&bus, size, NULL)) { 536 debug_error("failed to get PCI bus"); 537 bus = -1; 538 partial_pci = true; 539 } 540 541 /* 542 * The function retrieves the device's address. This value will be 543 * transformed into device function and number 544 */ 545 if (!SetupDiGetDeviceRegistryProperty( 546 dev_info, &dev_info_data, SPDRP_ADDRESS, 547 &type, (PBYTE)&addr, size, NULL)) { 548 debug_error("failed to get PCI address"); 549 addr = -1; 550 partial_pci = true; 551 } 552 553 /* 554 * This call returns UINumber of DEVICE_CAPABILITIES structure. 555 * This number is typically a user-perceived slot number. 556 */ 557 if (!SetupDiGetDeviceRegistryProperty( 558 dev_info, &dev_info_data, SPDRP_UI_NUMBER, 559 &type, (PBYTE)&ui_slot, size, NULL)) { 560 debug_error("failed to get PCI slot"); 561 ui_slot = -1; 562 partial_pci = true; 563 } 564 565 /* 566 * SetupApi gives us the same information as driver with 567 * IoGetDeviceProperty. According to Microsoft: 568 * 569 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 570 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 571 * SPDRP_ADDRESS is propertyAddress, so we do the same. 572 * 573 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 574 */ 575 if (partial_pci) { 576 pci->domain = -1; 577 pci->slot = -1; 578 pci->function = -1; 579 pci->bus = -1; 580 continue; 581 } else { 582 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 583 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 584 if ((int)ui_slot != slot) { 585 g_debug("mismatch with reported slot values: %d vs %d", 586 (int)ui_slot, slot); 587 } 588 pci->domain = 0; 589 pci->slot = (int)ui_slot; 590 pci->function = func; 591 pci->bus = (int)bus; 592 return; 593 } 594 } 595 } 596 597 static GuestPCIAddress *get_empty_pci_address(void) 598 { 599 GuestPCIAddress *pci = NULL; 600 601 pci = g_malloc0(sizeof(*pci)); 602 pci->domain = -1; 603 pci->slot = -1; 604 pci->function = -1; 605 pci->bus = -1; 606 return pci; 607 } 608 609 static GuestPCIAddress *get_pci_info(int number, Error **errp) 610 { 611 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 612 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE; 613 614 SP_DEVINFO_DATA dev_info_data; 615 SP_DEVICE_INTERFACE_DATA dev_iface_data; 616 HANDLE dev_file; 617 int i; 618 GuestPCIAddress *pci = get_empty_pci_address(); 619 620 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 621 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 622 if (dev_info == INVALID_HANDLE_VALUE) { 623 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 624 goto end; 625 } 626 627 g_debug("enumerating devices"); 628 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 629 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 630 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 631 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 632 STORAGE_DEVICE_NUMBER sdn; 633 g_autofree char *parent_dev_id = NULL; 634 SP_DEVINFO_DATA parent_dev_info_data; 635 DWORD size = 0; 636 637 g_debug("getting device path"); 638 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 639 &GUID_DEVINTERFACE_DISK, 0, 640 &dev_iface_data)) { 641 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 642 pdev_iface_detail_data, 643 size, &size, 644 &dev_info_data)) { 645 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 646 pdev_iface_detail_data = g_malloc(size); 647 pdev_iface_detail_data->cbSize = 648 sizeof(*pdev_iface_detail_data); 649 } else { 650 error_setg_win32(errp, GetLastError(), 651 "failed to get device interfaces"); 652 goto end; 653 } 654 } 655 656 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 657 pdev_iface_detail_data, 658 size, &size, 659 &dev_info_data)) { 660 // pdev_iface_detail_data already is allocated 661 error_setg_win32(errp, GetLastError(), 662 "failed to get device interfaces"); 663 goto end; 664 } 665 666 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 667 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 668 NULL); 669 670 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 671 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 672 CloseHandle(dev_file); 673 error_setg_win32(errp, GetLastError(), 674 "failed to get device slot number"); 675 goto end; 676 } 677 678 CloseHandle(dev_file); 679 if (sdn.DeviceNumber != number) { 680 continue; 681 } 682 } else { 683 error_setg_win32(errp, GetLastError(), 684 "failed to get device interfaces"); 685 goto end; 686 } 687 688 g_debug("found device slot %d. Getting storage controller", number); 689 { 690 CONFIGRET cr; 691 DEVINST dev_inst, parent_dev_inst; 692 ULONG dev_id_size = 0; 693 694 size = 0; 695 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 696 parent_dev_id, size, &size)) { 697 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 698 parent_dev_id = g_malloc(size); 699 } else { 700 error_setg_win32(errp, GetLastError(), 701 "failed to get device instance ID"); 702 goto end; 703 } 704 } 705 706 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 707 parent_dev_id, size, &size)) { 708 // parent_dev_id already is allocated 709 error_setg_win32(errp, GetLastError(), 710 "failed to get device instance ID"); 711 goto end; 712 } 713 714 /* 715 * CM API used here as opposed to 716 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 717 * which exports are only available in mingw-w64 6+ 718 */ 719 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 720 if (cr != CR_SUCCESS) { 721 g_error("CM_Locate_DevInst failed with code %lx", cr); 722 error_setg_win32(errp, GetLastError(), 723 "failed to get device instance"); 724 goto end; 725 } 726 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 727 if (cr != CR_SUCCESS) { 728 g_error("CM_Get_Parent failed with code %lx", cr); 729 error_setg_win32(errp, GetLastError(), 730 "failed to get parent device instance"); 731 goto end; 732 } 733 734 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 735 if (cr != CR_SUCCESS) { 736 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 737 error_setg_win32(errp, GetLastError(), 738 "failed to get parent device ID length"); 739 goto end; 740 } 741 742 ++dev_id_size; 743 if (dev_id_size > size) { 744 g_free(parent_dev_id); 745 parent_dev_id = g_malloc(dev_id_size); 746 } 747 748 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 749 0); 750 if (cr != CR_SUCCESS) { 751 g_error("CM_Get_Device_ID failed with code %lx", cr); 752 error_setg_win32(errp, GetLastError(), 753 "failed to get parent device ID"); 754 goto end; 755 } 756 } 757 758 g_debug("querying storage controller %s for PCI information", 759 parent_dev_id); 760 parent_dev_info = 761 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 762 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 763 764 if (parent_dev_info == INVALID_HANDLE_VALUE) { 765 error_setg_win32(errp, GetLastError(), 766 "failed to get parent device"); 767 goto end; 768 } 769 770 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 771 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 772 error_setg_win32(errp, GetLastError(), 773 "failed to get parent device data"); 774 goto end; 775 } 776 777 get_pci_address_for_device(pci, parent_dev_info); 778 779 break; 780 } 781 782 end: 783 if (parent_dev_info != INVALID_HANDLE_VALUE) { 784 SetupDiDestroyDeviceInfoList(parent_dev_info); 785 } 786 if (dev_info != INVALID_HANDLE_VALUE) { 787 SetupDiDestroyDeviceInfoList(dev_info); 788 } 789 return pci; 790 } 791 792 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 793 Error **errp) 794 { 795 STORAGE_PROPERTY_QUERY query; 796 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 797 DWORD received; 798 ULONG size = sizeof(buf); 799 800 dev_desc = &buf; 801 query.PropertyId = StorageDeviceProperty; 802 query.QueryType = PropertyStandardQuery; 803 804 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 805 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 806 size, &received, NULL)) { 807 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 808 return; 809 } 810 disk->bus_type = find_bus_type(dev_desc->BusType); 811 g_debug("bus type %d", disk->bus_type); 812 813 /* Query once more. Now with long enough buffer. */ 814 size = dev_desc->Size; 815 dev_desc = g_malloc0(size); 816 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 817 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 818 size, &received, NULL)) { 819 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 820 g_debug("failed to get serial number"); 821 goto out_free; 822 } 823 if (dev_desc->SerialNumberOffset > 0) { 824 const char *serial; 825 size_t len; 826 827 if (dev_desc->SerialNumberOffset >= received) { 828 error_setg(errp, "failed to get serial number: offset outside the buffer"); 829 g_debug("serial number offset outside the buffer"); 830 goto out_free; 831 } 832 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 833 len = received - dev_desc->SerialNumberOffset; 834 g_debug("serial number \"%s\"", serial); 835 if (*serial != 0) { 836 disk->serial = g_strndup(serial, len); 837 } 838 } 839 out_free: 840 g_free(dev_desc); 841 842 return; 843 } 844 845 static void get_single_disk_info(int disk_number, 846 GuestDiskAddress *disk, Error **errp) 847 { 848 SCSI_ADDRESS addr, *scsi_ad; 849 DWORD len; 850 HANDLE disk_h; 851 Error *local_err = NULL; 852 853 scsi_ad = &addr; 854 855 g_debug("getting disk info for: %s", disk->dev); 856 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 857 0, NULL); 858 if (disk_h == INVALID_HANDLE_VALUE) { 859 error_setg_win32(errp, GetLastError(), "failed to open disk"); 860 return; 861 } 862 863 get_disk_properties(disk_h, disk, &local_err); 864 if (local_err) { 865 error_propagate(errp, local_err); 866 goto err_close; 867 } 868 869 g_debug("bus type %d", disk->bus_type); 870 /* always set pci_controller as required by schema. get_pci_info() should 871 * report -1 values for non-PCI buses rather than fail. fail the command 872 * if that doesn't hold since that suggests some other unexpected 873 * breakage 874 */ 875 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) { 876 disk->pci_controller = get_empty_pci_address(); 877 } else { 878 disk->pci_controller = get_pci_info(disk_number, &local_err); 879 if (local_err) { 880 error_propagate(errp, local_err); 881 goto err_close; 882 } 883 } 884 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 885 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 886 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 887 /* This bus type is not supported before Windows Server 2003 SP1 */ 888 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 889 ) { 890 /* We are able to use the same ioctls for different bus types 891 * according to Microsoft docs 892 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 893 g_debug("getting SCSI info"); 894 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 895 sizeof(SCSI_ADDRESS), &len, NULL)) { 896 disk->unit = addr.Lun; 897 disk->target = addr.TargetId; 898 disk->bus = addr.PathId; 899 } 900 /* We do not set error in this case, because we still have enough 901 * information about volume. */ 902 } 903 904 err_close: 905 CloseHandle(disk_h); 906 return; 907 } 908 909 /* VSS provider works with volumes, thus there is no difference if 910 * the volume consist of spanned disks. Info about the first disk in the 911 * volume is returned for the spanned disk group (LVM) */ 912 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 913 { 914 Error *local_err = NULL; 915 GuestDiskAddressList *list = NULL; 916 GuestDiskAddress *disk = NULL; 917 int i; 918 HANDLE vol_h; 919 DWORD size; 920 PVOLUME_DISK_EXTENTS extents = NULL; 921 922 /* strip final backslash */ 923 char *name = g_strdup(guid); 924 if (g_str_has_suffix(name, "\\")) { 925 name[strlen(name) - 1] = 0; 926 } 927 928 g_debug("opening %s", name); 929 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 930 0, NULL); 931 if (vol_h == INVALID_HANDLE_VALUE) { 932 error_setg_win32(errp, GetLastError(), "failed to open volume"); 933 goto out; 934 } 935 936 /* Get list of extents */ 937 g_debug("getting disk extents"); 938 size = sizeof(VOLUME_DISK_EXTENTS); 939 extents = g_malloc0(size); 940 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 941 0, extents, size, &size, NULL)) { 942 DWORD last_err = GetLastError(); 943 if (last_err == ERROR_MORE_DATA) { 944 /* Try once more with big enough buffer */ 945 g_free(extents); 946 extents = g_malloc0(size); 947 if (!DeviceIoControl( 948 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 949 0, extents, size, NULL, NULL)) { 950 error_setg_win32(errp, GetLastError(), 951 "failed to get disk extents"); 952 goto out; 953 } 954 } else if (last_err == ERROR_INVALID_FUNCTION) { 955 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 956 g_debug("volume not on disk"); 957 disk = g_new0(GuestDiskAddress, 1); 958 disk->dev = g_strdup(name); 959 get_single_disk_info(0xffffffff, disk, &local_err); 960 if (local_err) { 961 g_debug("failed to get disk info, ignoring error: %s", 962 error_get_pretty(local_err)); 963 error_free(local_err); 964 goto out; 965 } 966 QAPI_LIST_PREPEND(list, disk); 967 disk = NULL; 968 goto out; 969 } else { 970 error_setg_win32(errp, GetLastError(), 971 "failed to get disk extents"); 972 goto out; 973 } 974 } 975 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 976 977 /* Go through each extent */ 978 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 979 disk = g_new0(GuestDiskAddress, 1); 980 981 /* Disk numbers directly correspond to numbers used in UNCs 982 * 983 * See documentation for DISK_EXTENT: 984 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 985 * 986 * See also Naming Files, Paths and Namespaces: 987 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 988 */ 989 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 990 extents->Extents[i].DiskNumber); 991 992 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 993 if (local_err) { 994 error_propagate(errp, local_err); 995 goto out; 996 } 997 QAPI_LIST_PREPEND(list, disk); 998 disk = NULL; 999 } 1000 1001 1002 out: 1003 if (vol_h != INVALID_HANDLE_VALUE) { 1004 CloseHandle(vol_h); 1005 } 1006 qapi_free_GuestDiskAddress(disk); 1007 g_free(extents); 1008 g_free(name); 1009 1010 return list; 1011 } 1012 1013 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1014 { 1015 GuestDiskInfoList *ret = NULL; 1016 HDEVINFO dev_info; 1017 SP_DEVICE_INTERFACE_DATA dev_iface_data; 1018 int i; 1019 1020 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 1021 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 1022 if (dev_info == INVALID_HANDLE_VALUE) { 1023 error_setg_win32(errp, GetLastError(), "failed to get device tree"); 1024 return NULL; 1025 } 1026 1027 g_debug("enumerating devices"); 1028 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 1029 for (i = 0; 1030 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK, 1031 i, &dev_iface_data); 1032 i++) { 1033 GuestDiskAddress *address = NULL; 1034 GuestDiskInfo *disk = NULL; 1035 Error *local_err = NULL; 1036 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA 1037 pdev_iface_detail_data = NULL; 1038 STORAGE_DEVICE_NUMBER sdn; 1039 HANDLE dev_file; 1040 DWORD size = 0; 1041 BOOL result; 1042 int attempt; 1043 1044 g_debug(" getting device path"); 1045 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) { 1046 result = SetupDiGetDeviceInterfaceDetail(dev_info, 1047 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL); 1048 if (result) { 1049 break; 1050 } 1051 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 1052 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data, 1053 size); 1054 pdev_iface_detail_data->cbSize = 1055 sizeof(*pdev_iface_detail_data); 1056 } else { 1057 g_debug("failed to get device interface details"); 1058 break; 1059 } 1060 } 1061 if (!result) { 1062 g_debug("skipping device"); 1063 continue; 1064 } 1065 1066 g_debug(" device: %s", pdev_iface_detail_data->DevicePath); 1067 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 1068 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); 1069 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 1070 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 1071 CloseHandle(dev_file); 1072 debug_error("failed to get storage device number"); 1073 continue; 1074 } 1075 CloseHandle(dev_file); 1076 1077 disk = g_new0(GuestDiskInfo, 1); 1078 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 1079 sdn.DeviceNumber); 1080 1081 g_debug(" number: %lu", sdn.DeviceNumber); 1082 address = g_new0(GuestDiskAddress, 1); 1083 address->dev = g_strdup(disk->name); 1084 get_single_disk_info(sdn.DeviceNumber, address, &local_err); 1085 if (local_err) { 1086 g_debug("failed to get disk info: %s", 1087 error_get_pretty(local_err)); 1088 error_free(local_err); 1089 qapi_free_GuestDiskAddress(address); 1090 address = NULL; 1091 } else { 1092 disk->address = address; 1093 } 1094 1095 QAPI_LIST_PREPEND(ret, disk); 1096 } 1097 1098 SetupDiDestroyDeviceInfoList(dev_info); 1099 return ret; 1100 } 1101 1102 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 1103 { 1104 DWORD info_size; 1105 char mnt, *mnt_point; 1106 wchar_t wfs_name[32]; 1107 char fs_name[32]; 1108 wchar_t vol_info[MAX_PATH + 1]; 1109 size_t len; 1110 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 1111 GuestFilesystemInfo *fs = NULL; 1112 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE; 1113 1114 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 1115 if (GetLastError() != ERROR_MORE_DATA) { 1116 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1117 return NULL; 1118 } 1119 1120 mnt_point = g_malloc(info_size + 1); 1121 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 1122 &info_size)) { 1123 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1124 goto free; 1125 } 1126 1127 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING, 1128 FILE_ATTRIBUTE_NORMAL | 1129 FILE_FLAG_BACKUP_SEMANTICS, NULL); 1130 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) { 1131 error_setg_win32(errp, GetLastError(), "failed to get handle for volume"); 1132 goto free; 1133 } 1134 1135 len = strlen(mnt_point); 1136 mnt_point[len] = '\\'; 1137 mnt_point[len + 1] = 0; 1138 1139 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info, 1140 sizeof(vol_info), NULL, NULL, NULL, 1141 (LPWSTR) & wfs_name, sizeof(wfs_name))) { 1142 if (GetLastError() != ERROR_NOT_READY) { 1143 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1144 } 1145 goto free; 1146 } 1147 1148 fs = g_malloc(sizeof(*fs)); 1149 fs->name = g_strdup(guid); 1150 fs->has_total_bytes = false; 1151 fs->has_used_bytes = false; 1152 if (len == 0) { 1153 fs->mountpoint = g_strdup("System Reserved"); 1154 } else { 1155 fs->mountpoint = g_strndup(mnt_point, len); 1156 if (GetDiskFreeSpaceEx(fs->mountpoint, 1157 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1158 (PULARGE_INTEGER) & i64TotalBytes, 1159 (PULARGE_INTEGER) & i64FreeBytes)) { 1160 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1161 fs->total_bytes = i64TotalBytes; 1162 fs->has_total_bytes = true; 1163 fs->has_used_bytes = true; 1164 } 1165 } 1166 wcstombs(fs_name, wfs_name, sizeof(wfs_name)); 1167 fs->type = g_strdup(fs_name); 1168 fs->disk = build_guest_disk_info(guid, errp); 1169 free: 1170 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) { 1171 CloseHandle(hLocalDiskHandle); 1172 } 1173 g_free(mnt_point); 1174 return fs; 1175 } 1176 1177 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1178 { 1179 HANDLE vol_h; 1180 GuestFilesystemInfoList *ret = NULL; 1181 char guid[256]; 1182 1183 vol_h = FindFirstVolume(guid, sizeof(guid)); 1184 if (vol_h == INVALID_HANDLE_VALUE) { 1185 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1186 return NULL; 1187 } 1188 1189 do { 1190 Error *local_err = NULL; 1191 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err); 1192 if (local_err) { 1193 g_debug("failed to get filesystem info, ignoring error: %s", 1194 error_get_pretty(local_err)); 1195 error_free(local_err); 1196 continue; 1197 } 1198 QAPI_LIST_PREPEND(ret, info); 1199 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1200 1201 if (GetLastError() != ERROR_NO_MORE_FILES) { 1202 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1203 } 1204 1205 FindVolumeClose(vol_h); 1206 return ret; 1207 } 1208 1209 /* 1210 * Return status of freeze/thaw 1211 */ 1212 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1213 { 1214 if (!vss_initialized()) { 1215 error_setg(errp, QERR_UNSUPPORTED); 1216 return 0; 1217 } 1218 1219 if (ga_is_frozen(ga_state)) { 1220 return GUEST_FSFREEZE_STATUS_FROZEN; 1221 } 1222 1223 return GUEST_FSFREEZE_STATUS_THAWED; 1224 } 1225 1226 /* 1227 * Freeze local file systems using Volume Shadow-copy Service. 1228 * The frozen state is limited for up to 10 seconds by VSS. 1229 */ 1230 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1231 { 1232 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1233 } 1234 1235 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1236 strList *mountpoints, 1237 Error **errp) 1238 { 1239 int i; 1240 Error *local_err = NULL; 1241 1242 if (!vss_initialized()) { 1243 error_setg(errp, QERR_UNSUPPORTED); 1244 return 0; 1245 } 1246 1247 slog("guest-fsfreeze called"); 1248 1249 /* cannot risk guest agent blocking itself on a write in this state */ 1250 ga_set_frozen(ga_state); 1251 1252 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1253 if (local_err) { 1254 error_propagate(errp, local_err); 1255 goto error; 1256 } 1257 1258 return i; 1259 1260 error: 1261 local_err = NULL; 1262 qmp_guest_fsfreeze_thaw(&local_err); 1263 if (local_err) { 1264 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1265 error_free(local_err); 1266 } 1267 return 0; 1268 } 1269 1270 /* 1271 * Thaw local file systems using Volume Shadow-copy Service. 1272 */ 1273 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1274 { 1275 int i; 1276 1277 if (!vss_initialized()) { 1278 error_setg(errp, QERR_UNSUPPORTED); 1279 return 0; 1280 } 1281 1282 qga_vss_fsfreeze(&i, false, NULL, errp); 1283 1284 ga_unset_frozen(ga_state); 1285 return i; 1286 } 1287 1288 static void guest_fsfreeze_cleanup(void) 1289 { 1290 Error *err = NULL; 1291 1292 if (!vss_initialized()) { 1293 return; 1294 } 1295 1296 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1297 qmp_guest_fsfreeze_thaw(&err); 1298 if (err) { 1299 slog("failed to clean up frozen filesystems: %s", 1300 error_get_pretty(err)); 1301 error_free(err); 1302 } 1303 } 1304 1305 vss_deinit(true); 1306 } 1307 1308 /* 1309 * Walk list of mounted file systems in the guest, and discard unused 1310 * areas. 1311 */ 1312 GuestFilesystemTrimResponse * 1313 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1314 { 1315 GuestFilesystemTrimResponse *resp; 1316 HANDLE handle; 1317 WCHAR guid[MAX_PATH] = L""; 1318 OSVERSIONINFO osvi; 1319 BOOL win8_or_later; 1320 1321 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1322 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1323 GetVersionEx(&osvi); 1324 win8_or_later = (osvi.dwMajorVersion > 6 || 1325 ((osvi.dwMajorVersion == 6) && 1326 (osvi.dwMinorVersion >= 2))); 1327 if (!win8_or_later) { 1328 error_setg(errp, "fstrim is only supported for Win8+"); 1329 return NULL; 1330 } 1331 1332 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1333 if (handle == INVALID_HANDLE_VALUE) { 1334 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1335 return NULL; 1336 } 1337 1338 resp = g_new0(GuestFilesystemTrimResponse, 1); 1339 1340 do { 1341 GuestFilesystemTrimResult *res; 1342 PWCHAR uc_path; 1343 DWORD char_count = 0; 1344 char *path, *out; 1345 GError *gerr = NULL; 1346 gchar *argv[4]; 1347 1348 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1349 1350 if (GetLastError() != ERROR_MORE_DATA) { 1351 continue; 1352 } 1353 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1354 continue; 1355 } 1356 1357 uc_path = g_new(WCHAR, char_count); 1358 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1359 &char_count) || !*uc_path) { 1360 /* strange, but this condition could be faced even with size == 2 */ 1361 g_free(uc_path); 1362 continue; 1363 } 1364 1365 res = g_new0(GuestFilesystemTrimResult, 1); 1366 1367 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1368 1369 g_free(uc_path); 1370 1371 if (!path) { 1372 res->error = g_strdup(gerr->message); 1373 g_error_free(gerr); 1374 break; 1375 } 1376 1377 res->path = path; 1378 1379 QAPI_LIST_PREPEND(resp->paths, res); 1380 1381 memset(argv, 0, sizeof(argv)); 1382 argv[0] = (gchar *)"defrag.exe"; 1383 argv[1] = (gchar *)"/L"; 1384 argv[2] = path; 1385 1386 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1387 &out /* stdout */, NULL /* stdin */, 1388 NULL, &gerr)) { 1389 res->error = g_strdup(gerr->message); 1390 g_error_free(gerr); 1391 } else { 1392 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1393 Error is reported in the output with something like 1394 (x89000020) etc code in the stdout */ 1395 1396 int i; 1397 gchar **lines = g_strsplit(out, "\r\n", 0); 1398 g_free(out); 1399 1400 for (i = 0; lines[i] != NULL; i++) { 1401 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1402 continue; 1403 } 1404 res->error = g_strdup(lines[i]); 1405 break; 1406 } 1407 g_strfreev(lines); 1408 } 1409 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1410 1411 FindVolumeClose(handle); 1412 return resp; 1413 } 1414 1415 typedef enum { 1416 GUEST_SUSPEND_MODE_DISK, 1417 GUEST_SUSPEND_MODE_RAM 1418 } GuestSuspendMode; 1419 1420 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1421 { 1422 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1423 1424 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1425 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1426 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1427 "failed to determine guest suspend capabilities"); 1428 return; 1429 } 1430 1431 switch (mode) { 1432 case GUEST_SUSPEND_MODE_DISK: 1433 if (!sys_pwr_caps.SystemS4) { 1434 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1435 "suspend-to-disk not supported by OS"); 1436 } 1437 break; 1438 case GUEST_SUSPEND_MODE_RAM: 1439 if (!sys_pwr_caps.SystemS3) { 1440 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1441 "suspend-to-ram not supported by OS"); 1442 } 1443 break; 1444 default: 1445 abort(); 1446 } 1447 } 1448 1449 static DWORD WINAPI do_suspend(LPVOID opaque) 1450 { 1451 GuestSuspendMode *mode = opaque; 1452 DWORD ret = 0; 1453 1454 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1455 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1456 slog("failed to suspend guest: %s", emsg); 1457 ret = -1; 1458 } 1459 g_free(mode); 1460 return ret; 1461 } 1462 1463 void qmp_guest_suspend_disk(Error **errp) 1464 { 1465 Error *local_err = NULL; 1466 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1467 1468 *mode = GUEST_SUSPEND_MODE_DISK; 1469 check_suspend_mode(*mode, &local_err); 1470 if (local_err) { 1471 goto out; 1472 } 1473 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1474 if (local_err) { 1475 goto out; 1476 } 1477 execute_async(do_suspend, mode, &local_err); 1478 1479 out: 1480 if (local_err) { 1481 error_propagate(errp, local_err); 1482 g_free(mode); 1483 } 1484 } 1485 1486 void qmp_guest_suspend_ram(Error **errp) 1487 { 1488 Error *local_err = NULL; 1489 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1490 1491 *mode = GUEST_SUSPEND_MODE_RAM; 1492 check_suspend_mode(*mode, &local_err); 1493 if (local_err) { 1494 goto out; 1495 } 1496 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1497 if (local_err) { 1498 goto out; 1499 } 1500 execute_async(do_suspend, mode, &local_err); 1501 1502 out: 1503 if (local_err) { 1504 error_propagate(errp, local_err); 1505 g_free(mode); 1506 } 1507 } 1508 1509 void qmp_guest_suspend_hybrid(Error **errp) 1510 { 1511 error_setg(errp, QERR_UNSUPPORTED); 1512 } 1513 1514 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1515 { 1516 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1517 ULONG adptr_addrs_len = 0; 1518 DWORD ret; 1519 1520 /* Call the first time to get the adptr_addrs_len. */ 1521 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1522 NULL, adptr_addrs, &adptr_addrs_len); 1523 1524 adptr_addrs = g_malloc(adptr_addrs_len); 1525 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1526 NULL, adptr_addrs, &adptr_addrs_len); 1527 if (ret != ERROR_SUCCESS) { 1528 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1529 g_free(adptr_addrs); 1530 adptr_addrs = NULL; 1531 } 1532 return adptr_addrs; 1533 } 1534 1535 static char *guest_wctomb_dup(WCHAR *wstr) 1536 { 1537 char *str; 1538 size_t str_size; 1539 1540 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1541 /* add 1 to str_size for NULL terminator */ 1542 str = g_malloc(str_size + 1); 1543 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1544 return str; 1545 } 1546 1547 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1548 Error **errp) 1549 { 1550 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1551 DWORD len; 1552 int ret; 1553 1554 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1555 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1556 len = sizeof(addr_str); 1557 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1558 ip_addr->Address.iSockaddrLength, 1559 NULL, 1560 addr_str, 1561 &len); 1562 if (ret != 0) { 1563 error_setg_win32(errp, WSAGetLastError(), 1564 "failed address presentation form conversion"); 1565 return NULL; 1566 } 1567 return g_strdup(addr_str); 1568 } 1569 return NULL; 1570 } 1571 1572 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1573 { 1574 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1575 * field to obtain the prefix. 1576 */ 1577 return ip_addr->OnLinkPrefixLength; 1578 } 1579 1580 #define INTERFACE_PATH_BUF_SZ 512 1581 1582 static DWORD get_interface_index(const char *guid) 1583 { 1584 ULONG index; 1585 DWORD status; 1586 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1587 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1588 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1589 status = GetAdapterIndex (wbuf, &index); 1590 if (status != NO_ERROR) { 1591 return (DWORD)~0; 1592 } else { 1593 return index; 1594 } 1595 } 1596 1597 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1598 1599 static int guest_get_network_stats(const char *name, 1600 GuestNetworkInterfaceStat *stats) 1601 { 1602 OSVERSIONINFO os_ver; 1603 1604 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1605 GetVersionEx(&os_ver); 1606 if (os_ver.dwMajorVersion >= 6) { 1607 MIB_IF_ROW2 a_mid_ifrow; 1608 GetIfEntry2Func getifentry2_ex; 1609 DWORD if_index = 0; 1610 HMODULE module = GetModuleHandle("iphlpapi"); 1611 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1612 1613 if (func == NULL) { 1614 return -1; 1615 } 1616 1617 getifentry2_ex = (GetIfEntry2Func)func; 1618 if_index = get_interface_index(name); 1619 if (if_index == (DWORD)~0) { 1620 return -1; 1621 } 1622 1623 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1624 a_mid_ifrow.InterfaceIndex = if_index; 1625 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1626 stats->rx_bytes = a_mid_ifrow.InOctets; 1627 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1628 stats->rx_errs = a_mid_ifrow.InErrors; 1629 stats->rx_dropped = a_mid_ifrow.InDiscards; 1630 stats->tx_bytes = a_mid_ifrow.OutOctets; 1631 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1632 stats->tx_errs = a_mid_ifrow.OutErrors; 1633 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1634 return 0; 1635 } 1636 } 1637 return -1; 1638 } 1639 1640 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1641 { 1642 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1643 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1644 GuestNetworkInterfaceList *head = NULL, **tail = &head; 1645 GuestIpAddressList *head_addr, **tail_addr; 1646 GuestNetworkInterface *info; 1647 GuestNetworkInterfaceStat *interface_stat = NULL; 1648 GuestIpAddress *address_item = NULL; 1649 unsigned char *mac_addr; 1650 char *addr_str; 1651 WORD wsa_version; 1652 WSADATA wsa_data; 1653 int ret; 1654 1655 adptr_addrs = guest_get_adapters_addresses(errp); 1656 if (adptr_addrs == NULL) { 1657 return NULL; 1658 } 1659 1660 /* Make WSA APIs available. */ 1661 wsa_version = MAKEWORD(2, 2); 1662 ret = WSAStartup(wsa_version, &wsa_data); 1663 if (ret != 0) { 1664 error_setg_win32(errp, ret, "failed socket startup"); 1665 goto out; 1666 } 1667 1668 for (addr = adptr_addrs; addr; addr = addr->Next) { 1669 info = g_malloc0(sizeof(*info)); 1670 1671 QAPI_LIST_APPEND(tail, info); 1672 1673 info->name = guest_wctomb_dup(addr->FriendlyName); 1674 1675 if (addr->PhysicalAddressLength != 0) { 1676 mac_addr = addr->PhysicalAddress; 1677 1678 info->hardware_address = 1679 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1680 (int) mac_addr[0], (int) mac_addr[1], 1681 (int) mac_addr[2], (int) mac_addr[3], 1682 (int) mac_addr[4], (int) mac_addr[5]); 1683 } 1684 1685 head_addr = NULL; 1686 tail_addr = &head_addr; 1687 for (ip_addr = addr->FirstUnicastAddress; 1688 ip_addr; 1689 ip_addr = ip_addr->Next) { 1690 addr_str = guest_addr_to_str(ip_addr, errp); 1691 if (addr_str == NULL) { 1692 continue; 1693 } 1694 1695 address_item = g_malloc0(sizeof(*address_item)); 1696 1697 QAPI_LIST_APPEND(tail_addr, address_item); 1698 1699 address_item->ip_address = addr_str; 1700 address_item->prefix = guest_ip_prefix(ip_addr); 1701 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1702 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 1703 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1704 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 1705 } 1706 } 1707 if (head_addr) { 1708 info->has_ip_addresses = true; 1709 info->ip_addresses = head_addr; 1710 } 1711 if (!info->statistics) { 1712 interface_stat = g_malloc0(sizeof(*interface_stat)); 1713 if (guest_get_network_stats(addr->AdapterName, interface_stat) 1714 == -1) { 1715 g_free(interface_stat); 1716 } else { 1717 info->statistics = interface_stat; 1718 } 1719 } 1720 } 1721 WSACleanup(); 1722 out: 1723 g_free(adptr_addrs); 1724 return head; 1725 } 1726 1727 static int64_t filetime_to_ns(const FILETIME *tf) 1728 { 1729 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) 1730 - W32_FT_OFFSET) * 100; 1731 } 1732 1733 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1734 { 1735 Error *local_err = NULL; 1736 SYSTEMTIME ts; 1737 FILETIME tf; 1738 LONGLONG time; 1739 1740 if (!has_time) { 1741 /* Unfortunately, Windows libraries don't provide an easy way to access 1742 * RTC yet: 1743 * 1744 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1745 * 1746 * Instead, a workaround is to use the Windows win32tm command to 1747 * resync the time using the Windows Time service. 1748 */ 1749 LPVOID msg_buffer; 1750 DWORD ret_flags; 1751 1752 HRESULT hr = system("w32tm /resync /nowait"); 1753 1754 if (GetLastError() != 0) { 1755 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1756 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1757 } else if (hr != 0) { 1758 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1759 error_setg(errp, "Windows Time service not running on the " 1760 "guest"); 1761 } else { 1762 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1763 FORMAT_MESSAGE_FROM_SYSTEM | 1764 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1765 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1766 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1767 NULL)) { 1768 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1769 "t retrieve error message", hr); 1770 } else { 1771 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1772 (LPCTSTR)msg_buffer); 1773 LocalFree(msg_buffer); 1774 } 1775 } 1776 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1777 error_setg(errp, "No internet connection on guest, sync not " 1778 "accurate"); 1779 } 1780 return; 1781 } 1782 1783 /* Validate time passed by user. */ 1784 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1785 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1786 return; 1787 } 1788 1789 time = time_ns / 100 + W32_FT_OFFSET; 1790 1791 tf.dwLowDateTime = (DWORD) time; 1792 tf.dwHighDateTime = (DWORD) (time >> 32); 1793 1794 if (!FileTimeToSystemTime(&tf, &ts)) { 1795 error_setg(errp, "Failed to convert system time %d", 1796 (int)GetLastError()); 1797 return; 1798 } 1799 1800 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1801 if (local_err) { 1802 error_propagate(errp, local_err); 1803 return; 1804 } 1805 1806 if (!SetSystemTime(&ts)) { 1807 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1808 return; 1809 } 1810 } 1811 1812 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1813 { 1814 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1815 DWORD length; 1816 GuestLogicalProcessorList *head, **tail; 1817 Error *local_err = NULL; 1818 int64_t current; 1819 1820 ptr = pslpi = NULL; 1821 length = 0; 1822 current = 0; 1823 head = NULL; 1824 tail = &head; 1825 1826 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1827 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1828 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1829 ptr = pslpi = g_malloc0(length); 1830 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1831 error_setg(&local_err, "Failed to get processor information: %d", 1832 (int)GetLastError()); 1833 } 1834 } else { 1835 error_setg(&local_err, 1836 "Failed to get processor information buffer length: %d", 1837 (int)GetLastError()); 1838 } 1839 1840 while ((local_err == NULL) && (length > 0)) { 1841 if (pslpi->Relationship == RelationProcessorCore) { 1842 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1843 1844 while (cpu_bits > 0) { 1845 if (!!(cpu_bits & 1)) { 1846 GuestLogicalProcessor *vcpu; 1847 1848 vcpu = g_malloc0(sizeof *vcpu); 1849 vcpu->logical_id = current++; 1850 vcpu->online = true; 1851 vcpu->has_can_offline = true; 1852 1853 QAPI_LIST_APPEND(tail, vcpu); 1854 } 1855 cpu_bits >>= 1; 1856 } 1857 } 1858 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1859 pslpi++; /* next entry */ 1860 } 1861 1862 g_free(ptr); 1863 1864 if (local_err == NULL) { 1865 if (head != NULL) { 1866 return head; 1867 } 1868 /* there's no guest with zero VCPUs */ 1869 error_setg(&local_err, "Guest reported zero VCPUs"); 1870 } 1871 1872 qapi_free_GuestLogicalProcessorList(head); 1873 error_propagate(errp, local_err); 1874 return NULL; 1875 } 1876 1877 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1878 { 1879 error_setg(errp, QERR_UNSUPPORTED); 1880 return -1; 1881 } 1882 1883 static gchar * 1884 get_net_error_message(gint error) 1885 { 1886 HMODULE module = NULL; 1887 gchar *retval = NULL; 1888 wchar_t *msg = NULL; 1889 int flags; 1890 size_t nchars; 1891 1892 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1893 FORMAT_MESSAGE_IGNORE_INSERTS | 1894 FORMAT_MESSAGE_FROM_SYSTEM; 1895 1896 if (error >= NERR_BASE && error <= MAX_NERR) { 1897 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1898 1899 if (module != NULL) { 1900 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1901 } 1902 } 1903 1904 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1905 1906 if (msg != NULL) { 1907 nchars = wcslen(msg); 1908 1909 if (nchars >= 2 && 1910 msg[nchars - 1] == L'\n' && 1911 msg[nchars - 2] == L'\r') { 1912 msg[nchars - 2] = L'\0'; 1913 } 1914 1915 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1916 1917 LocalFree(msg); 1918 } 1919 1920 if (module != NULL) { 1921 FreeLibrary(module); 1922 } 1923 1924 return retval; 1925 } 1926 1927 void qmp_guest_set_user_password(const char *username, 1928 const char *password, 1929 bool crypted, 1930 Error **errp) 1931 { 1932 NET_API_STATUS nas; 1933 char *rawpasswddata = NULL; 1934 size_t rawpasswdlen; 1935 wchar_t *user = NULL, *wpass = NULL; 1936 USER_INFO_1003 pi1003 = { 0, }; 1937 GError *gerr = NULL; 1938 1939 if (crypted) { 1940 error_setg(errp, QERR_UNSUPPORTED); 1941 return; 1942 } 1943 1944 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1945 if (!rawpasswddata) { 1946 return; 1947 } 1948 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1949 rawpasswddata[rawpasswdlen] = '\0'; 1950 1951 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1952 if (!user) { 1953 goto done; 1954 } 1955 1956 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1957 if (!wpass) { 1958 goto done; 1959 } 1960 1961 pi1003.usri1003_password = wpass; 1962 nas = NetUserSetInfo(NULL, user, 1963 1003, (LPBYTE)&pi1003, 1964 NULL); 1965 1966 if (nas != NERR_Success) { 1967 gchar *msg = get_net_error_message(nas); 1968 error_setg(errp, "failed to set password: %s", msg); 1969 g_free(msg); 1970 } 1971 1972 done: 1973 if (gerr) { 1974 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1975 g_error_free(gerr); 1976 } 1977 g_free(user); 1978 g_free(wpass); 1979 g_free(rawpasswddata); 1980 } 1981 1982 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1983 { 1984 error_setg(errp, QERR_UNSUPPORTED); 1985 return NULL; 1986 } 1987 1988 GuestMemoryBlockResponseList * 1989 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1990 { 1991 error_setg(errp, QERR_UNSUPPORTED); 1992 return NULL; 1993 } 1994 1995 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1996 { 1997 error_setg(errp, QERR_UNSUPPORTED); 1998 return NULL; 1999 } 2000 2001 /* add unsupported commands to the list of blocked RPCs */ 2002 GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 2003 { 2004 const char *list_unsupported[] = { 2005 "guest-suspend-hybrid", 2006 "guest-set-vcpus", 2007 "guest-get-memory-blocks", "guest-set-memory-blocks", 2008 "guest-get-memory-block-size", "guest-get-memory-block-info", 2009 NULL}; 2010 char **p = (char **)list_unsupported; 2011 2012 while (*p) { 2013 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2014 } 2015 2016 if (!vss_init(true)) { 2017 g_debug("vss_init failed, vss commands are going to be disabled"); 2018 const char *list[] = { 2019 "guest-get-fsinfo", "guest-fsfreeze-status", 2020 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 2021 p = (char **)list; 2022 2023 while (*p) { 2024 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2025 } 2026 } 2027 2028 return blockedrpcs; 2029 } 2030 2031 /* register init/cleanup routines for stateful command groups */ 2032 void ga_command_state_init(GAState *s, GACommandState *cs) 2033 { 2034 if (!vss_initialized()) { 2035 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2036 } 2037 } 2038 2039 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 2040 typedef struct _GA_WTSINFOA { 2041 WTS_CONNECTSTATE_CLASS State; 2042 DWORD SessionId; 2043 DWORD IncomingBytes; 2044 DWORD OutgoingBytes; 2045 DWORD IncomingFrames; 2046 DWORD OutgoingFrames; 2047 DWORD IncomingCompressedBytes; 2048 DWORD OutgoingCompressedBy; 2049 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 2050 CHAR Domain[DOMAIN_LENGTH]; 2051 CHAR UserName[USERNAME_LENGTH + 1]; 2052 LARGE_INTEGER ConnectTime; 2053 LARGE_INTEGER DisconnectTime; 2054 LARGE_INTEGER LastInputTime; 2055 LARGE_INTEGER LogonTime; 2056 LARGE_INTEGER CurrentTime; 2057 2058 } GA_WTSINFOA; 2059 2060 GuestUserList *qmp_guest_get_users(Error **errp) 2061 { 2062 #define QGA_NANOSECONDS 10000000 2063 2064 GHashTable *cache = NULL; 2065 GuestUserList *head = NULL, **tail = &head; 2066 2067 DWORD buffer_size = 0, count = 0, i = 0; 2068 GA_WTSINFOA *info = NULL; 2069 WTS_SESSION_INFOA *entries = NULL; 2070 GuestUser *user = NULL; 2071 gpointer value = NULL; 2072 INT64 login = 0; 2073 double login_time = 0; 2074 2075 cache = g_hash_table_new(g_str_hash, g_str_equal); 2076 2077 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 2078 for (i = 0; i < count; ++i) { 2079 buffer_size = 0; 2080 info = NULL; 2081 if (WTSQuerySessionInformationA( 2082 NULL, 2083 entries[i].SessionId, 2084 WTSSessionInfo, 2085 (LPSTR *)&info, 2086 &buffer_size 2087 )) { 2088 2089 if (strlen(info->UserName) == 0) { 2090 WTSFreeMemory(info); 2091 continue; 2092 } 2093 2094 login = info->LogonTime.QuadPart; 2095 login -= W32_FT_OFFSET; 2096 login_time = ((double)login) / QGA_NANOSECONDS; 2097 2098 if (g_hash_table_contains(cache, info->UserName)) { 2099 value = g_hash_table_lookup(cache, info->UserName); 2100 user = (GuestUser *)value; 2101 if (user->login_time > login_time) { 2102 user->login_time = login_time; 2103 } 2104 } else { 2105 user = g_new0(GuestUser, 1); 2106 2107 user->user = g_strdup(info->UserName); 2108 user->domain = g_strdup(info->Domain); 2109 2110 user->login_time = login_time; 2111 2112 g_hash_table_add(cache, user->user); 2113 2114 QAPI_LIST_APPEND(tail, user); 2115 } 2116 } 2117 WTSFreeMemory(info); 2118 } 2119 WTSFreeMemory(entries); 2120 } 2121 g_hash_table_destroy(cache); 2122 return head; 2123 } 2124 2125 typedef struct _ga_matrix_lookup_t { 2126 int major; 2127 int minor; 2128 char const *version; 2129 char const *version_id; 2130 } ga_matrix_lookup_t; 2131 2132 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = { 2133 { 2134 /* Desktop editions */ 2135 { 5, 0, "Microsoft Windows 2000", "2000"}, 2136 { 5, 1, "Microsoft Windows XP", "xp"}, 2137 { 6, 0, "Microsoft Windows Vista", "vista"}, 2138 { 6, 1, "Microsoft Windows 7" "7"}, 2139 { 6, 2, "Microsoft Windows 8", "8"}, 2140 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2141 { 0, 0, 0} 2142 },{ 2143 /* Server editions */ 2144 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2145 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2146 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2147 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2148 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2149 { 0, 0, 0}, 2150 { 0, 0, 0} 2151 } 2152 }; 2153 2154 typedef struct _ga_win_10_0_t { 2155 int first_build; 2156 char const *version; 2157 char const *version_id; 2158 } ga_win_10_0_t; 2159 2160 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = { 2161 {14393, "Microsoft Windows Server 2016", "2016"}, 2162 {17763, "Microsoft Windows Server 2019", "2019"}, 2163 {20344, "Microsoft Windows Server 2022", "2022"}, 2164 {0, 0} 2165 }; 2166 2167 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = { 2168 {10240, "Microsoft Windows 10", "10"}, 2169 {22000, "Microsoft Windows 11", "11"}, 2170 {0, 0} 2171 }; 2172 2173 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2174 { 2175 typedef NTSTATUS(WINAPI *rtl_get_version_t)( 2176 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2177 2178 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2179 2180 HMODULE module = GetModuleHandle("ntdll"); 2181 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2182 if (fun == NULL) { 2183 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2184 "Failed to get address of RtlGetVersion"); 2185 return; 2186 } 2187 2188 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2189 rtl_get_version(info); 2190 return; 2191 } 2192 2193 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 2194 { 2195 DWORD major = os_version->dwMajorVersion; 2196 DWORD minor = os_version->dwMinorVersion; 2197 DWORD build = os_version->dwBuildNumber; 2198 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2199 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 2200 ga_win_10_0_t const *win_10_0_table = tbl_idx ? 2201 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX; 2202 ga_win_10_0_t const *win_10_0_version = NULL; 2203 while (table->version != NULL) { 2204 if (major == 10 && minor == 0) { 2205 while (win_10_0_table->version != NULL) { 2206 if (build >= win_10_0_table->first_build) { 2207 win_10_0_version = win_10_0_table; 2208 } 2209 win_10_0_table++; 2210 } 2211 if (win_10_0_table) { 2212 if (id) { 2213 return g_strdup(win_10_0_version->version_id); 2214 } else { 2215 return g_strdup(win_10_0_version->version); 2216 } 2217 } 2218 } else if (major == table->major && minor == table->minor) { 2219 if (id) { 2220 return g_strdup(table->version_id); 2221 } else { 2222 return g_strdup(table->version); 2223 } 2224 } 2225 ++table; 2226 } 2227 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2228 major, minor); 2229 return g_strdup("N/A"); 2230 } 2231 2232 static char *ga_get_win_product_name(Error **errp) 2233 { 2234 HKEY key = INVALID_HANDLE_VALUE; 2235 DWORD size = 128; 2236 char *result = g_malloc0(size); 2237 LONG err = ERROR_SUCCESS; 2238 2239 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2240 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2241 &key); 2242 if (err != ERROR_SUCCESS) { 2243 error_setg_win32(errp, err, "failed to open registry key"); 2244 g_free(result); 2245 return NULL; 2246 } 2247 2248 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2249 (LPBYTE)result, &size); 2250 if (err == ERROR_MORE_DATA) { 2251 slog("ProductName longer than expected (%lu bytes), retrying", 2252 size); 2253 g_free(result); 2254 result = NULL; 2255 if (size > 0) { 2256 result = g_malloc0(size); 2257 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2258 (LPBYTE)result, &size); 2259 } 2260 } 2261 if (err != ERROR_SUCCESS) { 2262 error_setg_win32(errp, err, "failed to retrieve ProductName"); 2263 goto fail; 2264 } 2265 2266 RegCloseKey(key); 2267 return result; 2268 2269 fail: 2270 if (key != INVALID_HANDLE_VALUE) { 2271 RegCloseKey(key); 2272 } 2273 g_free(result); 2274 return NULL; 2275 } 2276 2277 static char *ga_get_current_arch(void) 2278 { 2279 SYSTEM_INFO info; 2280 GetNativeSystemInfo(&info); 2281 char *result = NULL; 2282 switch (info.wProcessorArchitecture) { 2283 case PROCESSOR_ARCHITECTURE_AMD64: 2284 result = g_strdup("x86_64"); 2285 break; 2286 case PROCESSOR_ARCHITECTURE_ARM: 2287 result = g_strdup("arm"); 2288 break; 2289 case PROCESSOR_ARCHITECTURE_IA64: 2290 result = g_strdup("ia64"); 2291 break; 2292 case PROCESSOR_ARCHITECTURE_INTEL: 2293 result = g_strdup("x86"); 2294 break; 2295 case PROCESSOR_ARCHITECTURE_UNKNOWN: 2296 default: 2297 slog("unknown processor architecture 0x%0x", 2298 info.wProcessorArchitecture); 2299 result = g_strdup("unknown"); 2300 break; 2301 } 2302 return result; 2303 } 2304 2305 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 2306 { 2307 Error *local_err = NULL; 2308 OSVERSIONINFOEXW os_version = {0}; 2309 bool server; 2310 char *product_name; 2311 GuestOSInfo *info; 2312 2313 ga_get_win_version(&os_version, &local_err); 2314 if (local_err) { 2315 error_propagate(errp, local_err); 2316 return NULL; 2317 } 2318 2319 server = os_version.wProductType != VER_NT_WORKSTATION; 2320 product_name = ga_get_win_product_name(errp); 2321 if (product_name == NULL) { 2322 return NULL; 2323 } 2324 2325 info = g_new0(GuestOSInfo, 1); 2326 2327 info->kernel_version = g_strdup_printf("%lu.%lu", 2328 os_version.dwMajorVersion, 2329 os_version.dwMinorVersion); 2330 info->kernel_release = g_strdup_printf("%lu", 2331 os_version.dwBuildNumber); 2332 info->machine = ga_get_current_arch(); 2333 2334 info->id = g_strdup("mswindows"); 2335 info->name = g_strdup("Microsoft Windows"); 2336 info->pretty_name = product_name; 2337 info->version = ga_get_win_name(&os_version, false); 2338 info->version_id = ga_get_win_name(&os_version, true); 2339 info->variant = g_strdup(server ? "server" : "client"); 2340 info->variant_id = g_strdup(server ? "server" : "client"); 2341 2342 return info; 2343 } 2344 2345 /* 2346 * Safely get device property. Returned strings are using wide characters. 2347 * Caller is responsible for freeing the buffer. 2348 */ 2349 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName, 2350 PDEVPROPTYPE propType) 2351 { 2352 CONFIGRET cr; 2353 g_autofree LPBYTE buffer = NULL; 2354 ULONG buffer_len = 0; 2355 2356 /* First query for needed space */ 2357 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2358 buffer, &buffer_len, 0); 2359 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) { 2360 2361 slog("failed to get property size, error=0x%lx", cr); 2362 return NULL; 2363 } 2364 buffer = g_new0(BYTE, buffer_len + 1); 2365 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2366 buffer, &buffer_len, 0); 2367 if (cr != CR_SUCCESS) { 2368 slog("failed to get device property, error=0x%lx", cr); 2369 return NULL; 2370 } 2371 return g_steal_pointer(&buffer); 2372 } 2373 2374 static GStrv ga_get_hardware_ids(DEVINST devInstance) 2375 { 2376 GArray *values = NULL; 2377 DEVPROPTYPE cm_type; 2378 LPWSTR id; 2379 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance, 2380 &qga_DEVPKEY_Device_HardwareIds, &cm_type); 2381 if (property == NULL) { 2382 slog("failed to get hardware IDs"); 2383 return NULL; 2384 } 2385 if (*property == '\0') { 2386 /* empty list */ 2387 return NULL; 2388 } 2389 values = g_array_new(TRUE, TRUE, sizeof(gchar *)); 2390 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) { 2391 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL); 2392 g_array_append_val(values, id8); 2393 } 2394 return (GStrv)g_array_free(values, FALSE); 2395 } 2396 2397 /* 2398 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices 2399 */ 2400 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)" 2401 2402 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 2403 { 2404 GuestDeviceInfoList *head = NULL, **tail = &head; 2405 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 2406 SP_DEVINFO_DATA dev_info_data; 2407 int i, j; 2408 GError *gerr = NULL; 2409 g_autoptr(GRegex) device_pci_re = NULL; 2410 DEVPROPTYPE cm_type; 2411 2412 device_pci_re = g_regex_new(DEVICE_PCI_RE, 2413 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0, 2414 &gerr); 2415 g_assert(device_pci_re != NULL); 2416 2417 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 2418 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES); 2419 if (dev_info == INVALID_HANDLE_VALUE) { 2420 error_setg(errp, "failed to get device tree"); 2421 return NULL; 2422 } 2423 2424 slog("enumerating devices"); 2425 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 2426 bool skip = true; 2427 g_autofree LPWSTR name = NULL; 2428 g_autofree LPFILETIME date = NULL; 2429 g_autofree LPWSTR version = NULL; 2430 g_auto(GStrv) hw_ids = NULL; 2431 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1); 2432 g_autofree char *vendor_id = NULL; 2433 g_autofree char *device_id = NULL; 2434 2435 name = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2436 &qga_DEVPKEY_NAME, &cm_type); 2437 if (name == NULL) { 2438 slog("failed to get device description"); 2439 continue; 2440 } 2441 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL); 2442 if (device->driver_name == NULL) { 2443 error_setg(errp, "conversion to utf8 failed (driver name)"); 2444 return NULL; 2445 } 2446 slog("querying device: %s", device->driver_name); 2447 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst); 2448 if (hw_ids == NULL) { 2449 continue; 2450 } 2451 for (j = 0; hw_ids[j] != NULL; j++) { 2452 g_autoptr(GMatchInfo) match_info; 2453 GuestDeviceIdPCI *id; 2454 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) { 2455 continue; 2456 } 2457 skip = false; 2458 2459 vendor_id = g_match_info_fetch(match_info, 1); 2460 device_id = g_match_info_fetch(match_info, 2); 2461 2462 device->id = g_new0(GuestDeviceId, 1); 2463 device->id->type = GUEST_DEVICE_TYPE_PCI; 2464 id = &device->id->u.pci; 2465 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16); 2466 id->device_id = g_ascii_strtoull(device_id, NULL, 16); 2467 2468 break; 2469 } 2470 if (skip) { 2471 continue; 2472 } 2473 2474 version = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2475 &qga_DEVPKEY_Device_DriverVersion, &cm_type); 2476 if (version == NULL) { 2477 slog("failed to get driver version"); 2478 continue; 2479 } 2480 device->driver_version = g_utf16_to_utf8(version, -1, NULL, 2481 NULL, NULL); 2482 if (device->driver_version == NULL) { 2483 error_setg(errp, "conversion to utf8 failed (driver version)"); 2484 return NULL; 2485 } 2486 2487 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst, 2488 &qga_DEVPKEY_Device_DriverDate, &cm_type); 2489 if (date == NULL) { 2490 slog("failed to get driver date"); 2491 continue; 2492 } 2493 device->driver_date = filetime_to_ns(date); 2494 device->has_driver_date = true; 2495 2496 slog("driver: %s\ndriver version: %" PRId64 ",%s\n", 2497 device->driver_name, device->driver_date, 2498 device->driver_version); 2499 QAPI_LIST_APPEND(tail, g_steal_pointer(&device)); 2500 } 2501 2502 if (dev_info != INVALID_HANDLE_VALUE) { 2503 SetupDiDestroyDeviceInfoList(dev_info); 2504 } 2505 return head; 2506 } 2507 2508 char *qga_get_host_name(Error **errp) 2509 { 2510 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1]; 2511 DWORD size = G_N_ELEMENTS(tmp); 2512 2513 if (GetComputerNameW(tmp, &size) == 0) { 2514 error_setg_win32(errp, GetLastError(), "failed close handle"); 2515 return NULL; 2516 } 2517 2518 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); 2519 } 2520 2521 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 2522 { 2523 error_setg(errp, QERR_UNSUPPORTED); 2524 return NULL; 2525 } 2526 2527 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 2528 { 2529 error_setg(errp, QERR_UNSUPPORTED); 2530 return NULL; 2531 } 2532