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 #if (_WIN32_WINNT >= 0x0601) 488 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 489 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 490 /* 491 * BusTypeSpaces currently is not suported 492 */ 493 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN, 494 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME, 495 #endif 496 }; 497 498 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 499 { 500 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 501 return GUEST_DISK_BUS_TYPE_UNKNOWN; 502 } 503 return win2qemu[(int)bus]; 504 } 505 506 DEFINE_GUID(GUID_DEVINTERFACE_DISK, 507 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 508 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 509 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT, 510 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82, 511 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 512 513 static void get_pci_address_for_device(GuestPCIAddress *pci, 514 HDEVINFO dev_info) 515 { 516 SP_DEVINFO_DATA dev_info_data; 517 DWORD j; 518 DWORD size; 519 bool partial_pci = false; 520 521 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 522 523 for (j = 0; 524 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data); 525 j++) { 526 DWORD addr, bus, ui_slot, type; 527 int func, slot; 528 size = sizeof(DWORD); 529 530 /* 531 * There is no need to allocate buffer in the next functions. The 532 * size is known and ULONG according to 533 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 534 */ 535 if (!SetupDiGetDeviceRegistryProperty( 536 dev_info, &dev_info_data, SPDRP_BUSNUMBER, 537 &type, (PBYTE)&bus, size, NULL)) { 538 debug_error("failed to get PCI bus"); 539 bus = -1; 540 partial_pci = true; 541 } 542 543 /* 544 * The function retrieves the device's address. This value will be 545 * transformed into device function and number 546 */ 547 if (!SetupDiGetDeviceRegistryProperty( 548 dev_info, &dev_info_data, SPDRP_ADDRESS, 549 &type, (PBYTE)&addr, size, NULL)) { 550 debug_error("failed to get PCI address"); 551 addr = -1; 552 partial_pci = true; 553 } 554 555 /* 556 * This call returns UINumber of DEVICE_CAPABILITIES structure. 557 * This number is typically a user-perceived slot number. 558 */ 559 if (!SetupDiGetDeviceRegistryProperty( 560 dev_info, &dev_info_data, SPDRP_UI_NUMBER, 561 &type, (PBYTE)&ui_slot, size, NULL)) { 562 debug_error("failed to get PCI slot"); 563 ui_slot = -1; 564 partial_pci = true; 565 } 566 567 /* 568 * SetupApi gives us the same information as driver with 569 * IoGetDeviceProperty. According to Microsoft: 570 * 571 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 572 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 573 * SPDRP_ADDRESS is propertyAddress, so we do the same. 574 * 575 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 576 */ 577 if (partial_pci) { 578 pci->domain = -1; 579 pci->slot = -1; 580 pci->function = -1; 581 pci->bus = -1; 582 continue; 583 } else { 584 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 585 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 586 if ((int)ui_slot != slot) { 587 g_debug("mismatch with reported slot values: %d vs %d", 588 (int)ui_slot, slot); 589 } 590 pci->domain = 0; 591 pci->slot = (int)ui_slot; 592 pci->function = func; 593 pci->bus = (int)bus; 594 return; 595 } 596 } 597 } 598 599 static GuestPCIAddress *get_empty_pci_address(void) 600 { 601 GuestPCIAddress *pci = NULL; 602 603 pci = g_malloc0(sizeof(*pci)); 604 pci->domain = -1; 605 pci->slot = -1; 606 pci->function = -1; 607 pci->bus = -1; 608 return pci; 609 } 610 611 static GuestPCIAddress *get_pci_info(int number, Error **errp) 612 { 613 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 614 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE; 615 616 SP_DEVINFO_DATA dev_info_data; 617 SP_DEVICE_INTERFACE_DATA dev_iface_data; 618 HANDLE dev_file; 619 int i; 620 GuestPCIAddress *pci = get_empty_pci_address(); 621 622 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 623 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 624 if (dev_info == INVALID_HANDLE_VALUE) { 625 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 626 goto end; 627 } 628 629 g_debug("enumerating devices"); 630 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 631 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 632 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 633 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 634 STORAGE_DEVICE_NUMBER sdn; 635 g_autofree char *parent_dev_id = NULL; 636 SP_DEVINFO_DATA parent_dev_info_data; 637 DWORD size = 0; 638 639 g_debug("getting device path"); 640 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 641 &GUID_DEVINTERFACE_DISK, 0, 642 &dev_iface_data)) { 643 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 644 pdev_iface_detail_data, 645 size, &size, 646 &dev_info_data)) { 647 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 648 pdev_iface_detail_data = g_malloc(size); 649 pdev_iface_detail_data->cbSize = 650 sizeof(*pdev_iface_detail_data); 651 } else { 652 error_setg_win32(errp, GetLastError(), 653 "failed to get device interfaces"); 654 goto end; 655 } 656 } 657 658 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 659 pdev_iface_detail_data, 660 size, &size, 661 &dev_info_data)) { 662 // pdev_iface_detail_data already is allocated 663 error_setg_win32(errp, GetLastError(), 664 "failed to get device interfaces"); 665 goto end; 666 } 667 668 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 669 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 670 NULL); 671 672 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 673 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 674 CloseHandle(dev_file); 675 error_setg_win32(errp, GetLastError(), 676 "failed to get device slot number"); 677 goto end; 678 } 679 680 CloseHandle(dev_file); 681 if (sdn.DeviceNumber != number) { 682 continue; 683 } 684 } else { 685 error_setg_win32(errp, GetLastError(), 686 "failed to get device interfaces"); 687 goto end; 688 } 689 690 g_debug("found device slot %d. Getting storage controller", number); 691 { 692 CONFIGRET cr; 693 DEVINST dev_inst, parent_dev_inst; 694 ULONG dev_id_size = 0; 695 696 size = 0; 697 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 698 parent_dev_id, size, &size)) { 699 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 700 parent_dev_id = g_malloc(size); 701 } else { 702 error_setg_win32(errp, GetLastError(), 703 "failed to get device instance ID"); 704 goto end; 705 } 706 } 707 708 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 709 parent_dev_id, size, &size)) { 710 // parent_dev_id already is allocated 711 error_setg_win32(errp, GetLastError(), 712 "failed to get device instance ID"); 713 goto end; 714 } 715 716 /* 717 * CM API used here as opposed to 718 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 719 * which exports are only available in mingw-w64 6+ 720 */ 721 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 722 if (cr != CR_SUCCESS) { 723 g_error("CM_Locate_DevInst failed with code %lx", cr); 724 error_setg_win32(errp, GetLastError(), 725 "failed to get device instance"); 726 goto end; 727 } 728 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 729 if (cr != CR_SUCCESS) { 730 g_error("CM_Get_Parent failed with code %lx", cr); 731 error_setg_win32(errp, GetLastError(), 732 "failed to get parent device instance"); 733 goto end; 734 } 735 736 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 737 if (cr != CR_SUCCESS) { 738 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 739 error_setg_win32(errp, GetLastError(), 740 "failed to get parent device ID length"); 741 goto end; 742 } 743 744 ++dev_id_size; 745 if (dev_id_size > size) { 746 g_free(parent_dev_id); 747 parent_dev_id = g_malloc(dev_id_size); 748 } 749 750 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 751 0); 752 if (cr != CR_SUCCESS) { 753 g_error("CM_Get_Device_ID failed with code %lx", cr); 754 error_setg_win32(errp, GetLastError(), 755 "failed to get parent device ID"); 756 goto end; 757 } 758 } 759 760 g_debug("querying storage controller %s for PCI information", 761 parent_dev_id); 762 parent_dev_info = 763 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 764 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 765 766 if (parent_dev_info == INVALID_HANDLE_VALUE) { 767 error_setg_win32(errp, GetLastError(), 768 "failed to get parent device"); 769 goto end; 770 } 771 772 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 773 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 774 error_setg_win32(errp, GetLastError(), 775 "failed to get parent device data"); 776 goto end; 777 } 778 779 get_pci_address_for_device(pci, parent_dev_info); 780 781 break; 782 } 783 784 end: 785 if (parent_dev_info != INVALID_HANDLE_VALUE) { 786 SetupDiDestroyDeviceInfoList(parent_dev_info); 787 } 788 if (dev_info != INVALID_HANDLE_VALUE) { 789 SetupDiDestroyDeviceInfoList(dev_info); 790 } 791 return pci; 792 } 793 794 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 795 Error **errp) 796 { 797 STORAGE_PROPERTY_QUERY query; 798 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 799 DWORD received; 800 ULONG size = sizeof(buf); 801 802 dev_desc = &buf; 803 query.PropertyId = StorageDeviceProperty; 804 query.QueryType = PropertyStandardQuery; 805 806 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 807 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 808 size, &received, NULL)) { 809 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 810 return; 811 } 812 disk->bus_type = find_bus_type(dev_desc->BusType); 813 g_debug("bus type %d", disk->bus_type); 814 815 /* Query once more. Now with long enough buffer. */ 816 size = dev_desc->Size; 817 dev_desc = g_malloc0(size); 818 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 819 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 820 size, &received, NULL)) { 821 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 822 g_debug("failed to get serial number"); 823 goto out_free; 824 } 825 if (dev_desc->SerialNumberOffset > 0) { 826 const char *serial; 827 size_t len; 828 829 if (dev_desc->SerialNumberOffset >= received) { 830 error_setg(errp, "failed to get serial number: offset outside the buffer"); 831 g_debug("serial number offset outside the buffer"); 832 goto out_free; 833 } 834 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 835 len = received - dev_desc->SerialNumberOffset; 836 g_debug("serial number \"%s\"", serial); 837 if (*serial != 0) { 838 disk->serial = g_strndup(serial, len); 839 } 840 } 841 out_free: 842 g_free(dev_desc); 843 844 return; 845 } 846 847 static void get_single_disk_info(int disk_number, 848 GuestDiskAddress *disk, Error **errp) 849 { 850 SCSI_ADDRESS addr, *scsi_ad; 851 DWORD len; 852 HANDLE disk_h; 853 Error *local_err = NULL; 854 855 scsi_ad = &addr; 856 857 g_debug("getting disk info for: %s", disk->dev); 858 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 859 0, NULL); 860 if (disk_h == INVALID_HANDLE_VALUE) { 861 error_setg_win32(errp, GetLastError(), "failed to open disk"); 862 return; 863 } 864 865 get_disk_properties(disk_h, disk, &local_err); 866 if (local_err) { 867 error_propagate(errp, local_err); 868 goto err_close; 869 } 870 871 g_debug("bus type %d", disk->bus_type); 872 /* always set pci_controller as required by schema. get_pci_info() should 873 * report -1 values for non-PCI buses rather than fail. fail the command 874 * if that doesn't hold since that suggests some other unexpected 875 * breakage 876 */ 877 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) { 878 disk->pci_controller = get_empty_pci_address(); 879 } else { 880 disk->pci_controller = get_pci_info(disk_number, &local_err); 881 if (local_err) { 882 error_propagate(errp, local_err); 883 goto err_close; 884 } 885 } 886 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 887 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 888 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 889 /* This bus type is not supported before Windows Server 2003 SP1 */ 890 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 891 ) { 892 /* We are able to use the same ioctls for different bus types 893 * according to Microsoft docs 894 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 895 g_debug("getting SCSI info"); 896 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 897 sizeof(SCSI_ADDRESS), &len, NULL)) { 898 disk->unit = addr.Lun; 899 disk->target = addr.TargetId; 900 disk->bus = addr.PathId; 901 } 902 /* We do not set error in this case, because we still have enough 903 * information about volume. */ 904 } 905 906 err_close: 907 CloseHandle(disk_h); 908 return; 909 } 910 911 /* VSS provider works with volumes, thus there is no difference if 912 * the volume consist of spanned disks. Info about the first disk in the 913 * volume is returned for the spanned disk group (LVM) */ 914 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 915 { 916 Error *local_err = NULL; 917 GuestDiskAddressList *list = NULL; 918 GuestDiskAddress *disk = NULL; 919 int i; 920 HANDLE vol_h; 921 DWORD size; 922 PVOLUME_DISK_EXTENTS extents = NULL; 923 924 /* strip final backslash */ 925 char *name = g_strdup(guid); 926 if (g_str_has_suffix(name, "\\")) { 927 name[strlen(name) - 1] = 0; 928 } 929 930 g_debug("opening %s", name); 931 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 932 0, NULL); 933 if (vol_h == INVALID_HANDLE_VALUE) { 934 error_setg_win32(errp, GetLastError(), "failed to open volume"); 935 goto out; 936 } 937 938 /* Get list of extents */ 939 g_debug("getting disk extents"); 940 size = sizeof(VOLUME_DISK_EXTENTS); 941 extents = g_malloc0(size); 942 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 943 0, extents, size, &size, NULL)) { 944 DWORD last_err = GetLastError(); 945 if (last_err == ERROR_MORE_DATA) { 946 /* Try once more with big enough buffer */ 947 g_free(extents); 948 extents = g_malloc0(size); 949 if (!DeviceIoControl( 950 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 951 0, extents, size, NULL, NULL)) { 952 error_setg_win32(errp, GetLastError(), 953 "failed to get disk extents"); 954 goto out; 955 } 956 } else if (last_err == ERROR_INVALID_FUNCTION) { 957 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 958 g_debug("volume not on disk"); 959 disk = g_new0(GuestDiskAddress, 1); 960 disk->dev = g_strdup(name); 961 get_single_disk_info(0xffffffff, disk, &local_err); 962 if (local_err) { 963 g_debug("failed to get disk info, ignoring error: %s", 964 error_get_pretty(local_err)); 965 error_free(local_err); 966 goto out; 967 } 968 QAPI_LIST_PREPEND(list, disk); 969 disk = NULL; 970 goto out; 971 } else { 972 error_setg_win32(errp, GetLastError(), 973 "failed to get disk extents"); 974 goto out; 975 } 976 } 977 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 978 979 /* Go through each extent */ 980 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 981 disk = g_new0(GuestDiskAddress, 1); 982 983 /* Disk numbers directly correspond to numbers used in UNCs 984 * 985 * See documentation for DISK_EXTENT: 986 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 987 * 988 * See also Naming Files, Paths and Namespaces: 989 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 990 */ 991 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 992 extents->Extents[i].DiskNumber); 993 994 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 995 if (local_err) { 996 error_propagate(errp, local_err); 997 goto out; 998 } 999 QAPI_LIST_PREPEND(list, disk); 1000 disk = NULL; 1001 } 1002 1003 1004 out: 1005 if (vol_h != INVALID_HANDLE_VALUE) { 1006 CloseHandle(vol_h); 1007 } 1008 qapi_free_GuestDiskAddress(disk); 1009 g_free(extents); 1010 g_free(name); 1011 1012 return list; 1013 } 1014 1015 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1016 { 1017 GuestDiskInfoList *ret = NULL; 1018 HDEVINFO dev_info; 1019 SP_DEVICE_INTERFACE_DATA dev_iface_data; 1020 int i; 1021 1022 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 1023 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 1024 if (dev_info == INVALID_HANDLE_VALUE) { 1025 error_setg_win32(errp, GetLastError(), "failed to get device tree"); 1026 return NULL; 1027 } 1028 1029 g_debug("enumerating devices"); 1030 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 1031 for (i = 0; 1032 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK, 1033 i, &dev_iface_data); 1034 i++) { 1035 GuestDiskAddress *address = NULL; 1036 GuestDiskInfo *disk = NULL; 1037 Error *local_err = NULL; 1038 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA 1039 pdev_iface_detail_data = NULL; 1040 STORAGE_DEVICE_NUMBER sdn; 1041 HANDLE dev_file; 1042 DWORD size = 0; 1043 BOOL result; 1044 int attempt; 1045 1046 g_debug(" getting device path"); 1047 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) { 1048 result = SetupDiGetDeviceInterfaceDetail(dev_info, 1049 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL); 1050 if (result) { 1051 break; 1052 } 1053 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 1054 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data, 1055 size); 1056 pdev_iface_detail_data->cbSize = 1057 sizeof(*pdev_iface_detail_data); 1058 } else { 1059 g_debug("failed to get device interface details"); 1060 break; 1061 } 1062 } 1063 if (!result) { 1064 g_debug("skipping device"); 1065 continue; 1066 } 1067 1068 g_debug(" device: %s", pdev_iface_detail_data->DevicePath); 1069 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 1070 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); 1071 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 1072 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 1073 CloseHandle(dev_file); 1074 debug_error("failed to get storage device number"); 1075 continue; 1076 } 1077 CloseHandle(dev_file); 1078 1079 disk = g_new0(GuestDiskInfo, 1); 1080 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 1081 sdn.DeviceNumber); 1082 1083 g_debug(" number: %lu", sdn.DeviceNumber); 1084 address = g_new0(GuestDiskAddress, 1); 1085 address->dev = g_strdup(disk->name); 1086 get_single_disk_info(sdn.DeviceNumber, address, &local_err); 1087 if (local_err) { 1088 g_debug("failed to get disk info: %s", 1089 error_get_pretty(local_err)); 1090 error_free(local_err); 1091 qapi_free_GuestDiskAddress(address); 1092 address = NULL; 1093 } else { 1094 disk->address = address; 1095 } 1096 1097 QAPI_LIST_PREPEND(ret, disk); 1098 } 1099 1100 SetupDiDestroyDeviceInfoList(dev_info); 1101 return ret; 1102 } 1103 1104 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 1105 { 1106 DWORD info_size; 1107 char mnt, *mnt_point; 1108 wchar_t wfs_name[32]; 1109 char fs_name[32]; 1110 wchar_t vol_info[MAX_PATH + 1]; 1111 size_t len; 1112 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 1113 GuestFilesystemInfo *fs = NULL; 1114 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE; 1115 1116 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 1117 if (GetLastError() != ERROR_MORE_DATA) { 1118 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1119 return NULL; 1120 } 1121 1122 mnt_point = g_malloc(info_size + 1); 1123 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 1124 &info_size)) { 1125 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1126 goto free; 1127 } 1128 1129 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING, 1130 FILE_ATTRIBUTE_NORMAL | 1131 FILE_FLAG_BACKUP_SEMANTICS, NULL); 1132 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) { 1133 error_setg_win32(errp, GetLastError(), "failed to get handle for volume"); 1134 goto free; 1135 } 1136 1137 len = strlen(mnt_point); 1138 mnt_point[len] = '\\'; 1139 mnt_point[len + 1] = 0; 1140 1141 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info, 1142 sizeof(vol_info), NULL, NULL, NULL, 1143 (LPWSTR) & wfs_name, sizeof(wfs_name))) { 1144 if (GetLastError() != ERROR_NOT_READY) { 1145 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1146 } 1147 goto free; 1148 } 1149 1150 fs = g_malloc(sizeof(*fs)); 1151 fs->name = g_strdup(guid); 1152 fs->has_total_bytes = false; 1153 fs->has_used_bytes = false; 1154 if (len == 0) { 1155 fs->mountpoint = g_strdup("System Reserved"); 1156 } else { 1157 fs->mountpoint = g_strndup(mnt_point, len); 1158 if (GetDiskFreeSpaceEx(fs->mountpoint, 1159 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1160 (PULARGE_INTEGER) & i64TotalBytes, 1161 (PULARGE_INTEGER) & i64FreeBytes)) { 1162 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1163 fs->total_bytes = i64TotalBytes; 1164 fs->has_total_bytes = true; 1165 fs->has_used_bytes = true; 1166 } 1167 } 1168 wcstombs(fs_name, wfs_name, sizeof(wfs_name)); 1169 fs->type = g_strdup(fs_name); 1170 fs->disk = build_guest_disk_info(guid, errp); 1171 free: 1172 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) { 1173 CloseHandle(hLocalDiskHandle); 1174 } 1175 g_free(mnt_point); 1176 return fs; 1177 } 1178 1179 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1180 { 1181 HANDLE vol_h; 1182 GuestFilesystemInfoList *ret = NULL; 1183 char guid[256]; 1184 1185 vol_h = FindFirstVolume(guid, sizeof(guid)); 1186 if (vol_h == INVALID_HANDLE_VALUE) { 1187 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1188 return NULL; 1189 } 1190 1191 do { 1192 Error *local_err = NULL; 1193 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err); 1194 if (local_err) { 1195 g_debug("failed to get filesystem info, ignoring error: %s", 1196 error_get_pretty(local_err)); 1197 error_free(local_err); 1198 continue; 1199 } 1200 QAPI_LIST_PREPEND(ret, info); 1201 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1202 1203 if (GetLastError() != ERROR_NO_MORE_FILES) { 1204 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1205 } 1206 1207 FindVolumeClose(vol_h); 1208 return ret; 1209 } 1210 1211 /* 1212 * Return status of freeze/thaw 1213 */ 1214 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1215 { 1216 if (!vss_initialized()) { 1217 error_setg(errp, QERR_UNSUPPORTED); 1218 return 0; 1219 } 1220 1221 if (ga_is_frozen(ga_state)) { 1222 return GUEST_FSFREEZE_STATUS_FROZEN; 1223 } 1224 1225 return GUEST_FSFREEZE_STATUS_THAWED; 1226 } 1227 1228 /* 1229 * Freeze local file systems using Volume Shadow-copy Service. 1230 * The frozen state is limited for up to 10 seconds by VSS. 1231 */ 1232 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1233 { 1234 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1235 } 1236 1237 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1238 strList *mountpoints, 1239 Error **errp) 1240 { 1241 int i; 1242 Error *local_err = NULL; 1243 1244 if (!vss_initialized()) { 1245 error_setg(errp, QERR_UNSUPPORTED); 1246 return 0; 1247 } 1248 1249 slog("guest-fsfreeze called"); 1250 1251 /* cannot risk guest agent blocking itself on a write in this state */ 1252 ga_set_frozen(ga_state); 1253 1254 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1255 if (local_err) { 1256 error_propagate(errp, local_err); 1257 goto error; 1258 } 1259 1260 return i; 1261 1262 error: 1263 local_err = NULL; 1264 qmp_guest_fsfreeze_thaw(&local_err); 1265 if (local_err) { 1266 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1267 error_free(local_err); 1268 } 1269 return 0; 1270 } 1271 1272 /* 1273 * Thaw local file systems using Volume Shadow-copy Service. 1274 */ 1275 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1276 { 1277 int i; 1278 1279 if (!vss_initialized()) { 1280 error_setg(errp, QERR_UNSUPPORTED); 1281 return 0; 1282 } 1283 1284 qga_vss_fsfreeze(&i, false, NULL, errp); 1285 1286 ga_unset_frozen(ga_state); 1287 return i; 1288 } 1289 1290 static void guest_fsfreeze_cleanup(void) 1291 { 1292 Error *err = NULL; 1293 1294 if (!vss_initialized()) { 1295 return; 1296 } 1297 1298 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1299 qmp_guest_fsfreeze_thaw(&err); 1300 if (err) { 1301 slog("failed to clean up frozen filesystems: %s", 1302 error_get_pretty(err)); 1303 error_free(err); 1304 } 1305 } 1306 1307 vss_deinit(true); 1308 } 1309 1310 /* 1311 * Walk list of mounted file systems in the guest, and discard unused 1312 * areas. 1313 */ 1314 GuestFilesystemTrimResponse * 1315 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1316 { 1317 GuestFilesystemTrimResponse *resp; 1318 HANDLE handle; 1319 WCHAR guid[MAX_PATH] = L""; 1320 OSVERSIONINFO osvi; 1321 BOOL win8_or_later; 1322 1323 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1324 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1325 GetVersionEx(&osvi); 1326 win8_or_later = (osvi.dwMajorVersion > 6 || 1327 ((osvi.dwMajorVersion == 6) && 1328 (osvi.dwMinorVersion >= 2))); 1329 if (!win8_or_later) { 1330 error_setg(errp, "fstrim is only supported for Win8+"); 1331 return NULL; 1332 } 1333 1334 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1335 if (handle == INVALID_HANDLE_VALUE) { 1336 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1337 return NULL; 1338 } 1339 1340 resp = g_new0(GuestFilesystemTrimResponse, 1); 1341 1342 do { 1343 GuestFilesystemTrimResult *res; 1344 PWCHAR uc_path; 1345 DWORD char_count = 0; 1346 char *path, *out; 1347 GError *gerr = NULL; 1348 gchar *argv[4]; 1349 1350 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1351 1352 if (GetLastError() != ERROR_MORE_DATA) { 1353 continue; 1354 } 1355 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1356 continue; 1357 } 1358 1359 uc_path = g_new(WCHAR, char_count); 1360 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1361 &char_count) || !*uc_path) { 1362 /* strange, but this condition could be faced even with size == 2 */ 1363 g_free(uc_path); 1364 continue; 1365 } 1366 1367 res = g_new0(GuestFilesystemTrimResult, 1); 1368 1369 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1370 1371 g_free(uc_path); 1372 1373 if (!path) { 1374 res->error = g_strdup(gerr->message); 1375 g_error_free(gerr); 1376 break; 1377 } 1378 1379 res->path = path; 1380 1381 QAPI_LIST_PREPEND(resp->paths, res); 1382 1383 memset(argv, 0, sizeof(argv)); 1384 argv[0] = (gchar *)"defrag.exe"; 1385 argv[1] = (gchar *)"/L"; 1386 argv[2] = path; 1387 1388 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1389 &out /* stdout */, NULL /* stdin */, 1390 NULL, &gerr)) { 1391 res->error = g_strdup(gerr->message); 1392 g_error_free(gerr); 1393 } else { 1394 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1395 Error is reported in the output with something like 1396 (x89000020) etc code in the stdout */ 1397 1398 int i; 1399 gchar **lines = g_strsplit(out, "\r\n", 0); 1400 g_free(out); 1401 1402 for (i = 0; lines[i] != NULL; i++) { 1403 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1404 continue; 1405 } 1406 res->error = g_strdup(lines[i]); 1407 break; 1408 } 1409 g_strfreev(lines); 1410 } 1411 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1412 1413 FindVolumeClose(handle); 1414 return resp; 1415 } 1416 1417 typedef enum { 1418 GUEST_SUSPEND_MODE_DISK, 1419 GUEST_SUSPEND_MODE_RAM 1420 } GuestSuspendMode; 1421 1422 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1423 { 1424 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1425 1426 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1427 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1428 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1429 "failed to determine guest suspend capabilities"); 1430 return; 1431 } 1432 1433 switch (mode) { 1434 case GUEST_SUSPEND_MODE_DISK: 1435 if (!sys_pwr_caps.SystemS4) { 1436 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1437 "suspend-to-disk not supported by OS"); 1438 } 1439 break; 1440 case GUEST_SUSPEND_MODE_RAM: 1441 if (!sys_pwr_caps.SystemS3) { 1442 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1443 "suspend-to-ram not supported by OS"); 1444 } 1445 break; 1446 default: 1447 abort(); 1448 } 1449 } 1450 1451 static DWORD WINAPI do_suspend(LPVOID opaque) 1452 { 1453 GuestSuspendMode *mode = opaque; 1454 DWORD ret = 0; 1455 1456 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1457 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1458 slog("failed to suspend guest: %s", emsg); 1459 ret = -1; 1460 } 1461 g_free(mode); 1462 return ret; 1463 } 1464 1465 void qmp_guest_suspend_disk(Error **errp) 1466 { 1467 Error *local_err = NULL; 1468 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1469 1470 *mode = GUEST_SUSPEND_MODE_DISK; 1471 check_suspend_mode(*mode, &local_err); 1472 if (local_err) { 1473 goto out; 1474 } 1475 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1476 if (local_err) { 1477 goto out; 1478 } 1479 execute_async(do_suspend, mode, &local_err); 1480 1481 out: 1482 if (local_err) { 1483 error_propagate(errp, local_err); 1484 g_free(mode); 1485 } 1486 } 1487 1488 void qmp_guest_suspend_ram(Error **errp) 1489 { 1490 Error *local_err = NULL; 1491 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1492 1493 *mode = GUEST_SUSPEND_MODE_RAM; 1494 check_suspend_mode(*mode, &local_err); 1495 if (local_err) { 1496 goto out; 1497 } 1498 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1499 if (local_err) { 1500 goto out; 1501 } 1502 execute_async(do_suspend, mode, &local_err); 1503 1504 out: 1505 if (local_err) { 1506 error_propagate(errp, local_err); 1507 g_free(mode); 1508 } 1509 } 1510 1511 void qmp_guest_suspend_hybrid(Error **errp) 1512 { 1513 error_setg(errp, QERR_UNSUPPORTED); 1514 } 1515 1516 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1517 { 1518 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1519 ULONG adptr_addrs_len = 0; 1520 DWORD ret; 1521 1522 /* Call the first time to get the adptr_addrs_len. */ 1523 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1524 NULL, adptr_addrs, &adptr_addrs_len); 1525 1526 adptr_addrs = g_malloc(adptr_addrs_len); 1527 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1528 NULL, adptr_addrs, &adptr_addrs_len); 1529 if (ret != ERROR_SUCCESS) { 1530 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1531 g_free(adptr_addrs); 1532 adptr_addrs = NULL; 1533 } 1534 return adptr_addrs; 1535 } 1536 1537 static char *guest_wctomb_dup(WCHAR *wstr) 1538 { 1539 char *str; 1540 size_t str_size; 1541 1542 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1543 /* add 1 to str_size for NULL terminator */ 1544 str = g_malloc(str_size + 1); 1545 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1546 return str; 1547 } 1548 1549 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1550 Error **errp) 1551 { 1552 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1553 DWORD len; 1554 int ret; 1555 1556 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1557 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1558 len = sizeof(addr_str); 1559 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1560 ip_addr->Address.iSockaddrLength, 1561 NULL, 1562 addr_str, 1563 &len); 1564 if (ret != 0) { 1565 error_setg_win32(errp, WSAGetLastError(), 1566 "failed address presentation form conversion"); 1567 return NULL; 1568 } 1569 return g_strdup(addr_str); 1570 } 1571 return NULL; 1572 } 1573 1574 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1575 { 1576 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1577 * field to obtain the prefix. 1578 */ 1579 return ip_addr->OnLinkPrefixLength; 1580 } 1581 1582 #define INTERFACE_PATH_BUF_SZ 512 1583 1584 static DWORD get_interface_index(const char *guid) 1585 { 1586 ULONG index; 1587 DWORD status; 1588 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1589 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1590 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1591 status = GetAdapterIndex (wbuf, &index); 1592 if (status != NO_ERROR) { 1593 return (DWORD)~0; 1594 } else { 1595 return index; 1596 } 1597 } 1598 1599 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1600 1601 static int guest_get_network_stats(const char *name, 1602 GuestNetworkInterfaceStat *stats) 1603 { 1604 OSVERSIONINFO os_ver; 1605 1606 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1607 GetVersionEx(&os_ver); 1608 if (os_ver.dwMajorVersion >= 6) { 1609 MIB_IF_ROW2 a_mid_ifrow; 1610 GetIfEntry2Func getifentry2_ex; 1611 DWORD if_index = 0; 1612 HMODULE module = GetModuleHandle("iphlpapi"); 1613 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1614 1615 if (func == NULL) { 1616 return -1; 1617 } 1618 1619 getifentry2_ex = (GetIfEntry2Func)func; 1620 if_index = get_interface_index(name); 1621 if (if_index == (DWORD)~0) { 1622 return -1; 1623 } 1624 1625 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1626 a_mid_ifrow.InterfaceIndex = if_index; 1627 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1628 stats->rx_bytes = a_mid_ifrow.InOctets; 1629 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1630 stats->rx_errs = a_mid_ifrow.InErrors; 1631 stats->rx_dropped = a_mid_ifrow.InDiscards; 1632 stats->tx_bytes = a_mid_ifrow.OutOctets; 1633 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1634 stats->tx_errs = a_mid_ifrow.OutErrors; 1635 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1636 return 0; 1637 } 1638 } 1639 return -1; 1640 } 1641 1642 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1643 { 1644 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1645 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1646 GuestNetworkInterfaceList *head = NULL, **tail = &head; 1647 GuestIpAddressList *head_addr, **tail_addr; 1648 GuestNetworkInterface *info; 1649 GuestNetworkInterfaceStat *interface_stat = NULL; 1650 GuestIpAddress *address_item = NULL; 1651 unsigned char *mac_addr; 1652 char *addr_str; 1653 WORD wsa_version; 1654 WSADATA wsa_data; 1655 int ret; 1656 1657 adptr_addrs = guest_get_adapters_addresses(errp); 1658 if (adptr_addrs == NULL) { 1659 return NULL; 1660 } 1661 1662 /* Make WSA APIs available. */ 1663 wsa_version = MAKEWORD(2, 2); 1664 ret = WSAStartup(wsa_version, &wsa_data); 1665 if (ret != 0) { 1666 error_setg_win32(errp, ret, "failed socket startup"); 1667 goto out; 1668 } 1669 1670 for (addr = adptr_addrs; addr; addr = addr->Next) { 1671 info = g_malloc0(sizeof(*info)); 1672 1673 QAPI_LIST_APPEND(tail, info); 1674 1675 info->name = guest_wctomb_dup(addr->FriendlyName); 1676 1677 if (addr->PhysicalAddressLength != 0) { 1678 mac_addr = addr->PhysicalAddress; 1679 1680 info->hardware_address = 1681 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1682 (int) mac_addr[0], (int) mac_addr[1], 1683 (int) mac_addr[2], (int) mac_addr[3], 1684 (int) mac_addr[4], (int) mac_addr[5]); 1685 } 1686 1687 head_addr = NULL; 1688 tail_addr = &head_addr; 1689 for (ip_addr = addr->FirstUnicastAddress; 1690 ip_addr; 1691 ip_addr = ip_addr->Next) { 1692 addr_str = guest_addr_to_str(ip_addr, errp); 1693 if (addr_str == NULL) { 1694 continue; 1695 } 1696 1697 address_item = g_malloc0(sizeof(*address_item)); 1698 1699 QAPI_LIST_APPEND(tail_addr, address_item); 1700 1701 address_item->ip_address = addr_str; 1702 address_item->prefix = guest_ip_prefix(ip_addr); 1703 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1704 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 1705 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1706 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 1707 } 1708 } 1709 if (head_addr) { 1710 info->has_ip_addresses = true; 1711 info->ip_addresses = head_addr; 1712 } 1713 if (!info->statistics) { 1714 interface_stat = g_malloc0(sizeof(*interface_stat)); 1715 if (guest_get_network_stats(addr->AdapterName, interface_stat) 1716 == -1) { 1717 g_free(interface_stat); 1718 } else { 1719 info->statistics = interface_stat; 1720 } 1721 } 1722 } 1723 WSACleanup(); 1724 out: 1725 g_free(adptr_addrs); 1726 return head; 1727 } 1728 1729 static int64_t filetime_to_ns(const FILETIME *tf) 1730 { 1731 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) 1732 - W32_FT_OFFSET) * 100; 1733 } 1734 1735 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1736 { 1737 Error *local_err = NULL; 1738 SYSTEMTIME ts; 1739 FILETIME tf; 1740 LONGLONG time; 1741 1742 if (!has_time) { 1743 /* Unfortunately, Windows libraries don't provide an easy way to access 1744 * RTC yet: 1745 * 1746 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1747 * 1748 * Instead, a workaround is to use the Windows win32tm command to 1749 * resync the time using the Windows Time service. 1750 */ 1751 LPVOID msg_buffer; 1752 DWORD ret_flags; 1753 1754 HRESULT hr = system("w32tm /resync /nowait"); 1755 1756 if (GetLastError() != 0) { 1757 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1758 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1759 } else if (hr != 0) { 1760 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1761 error_setg(errp, "Windows Time service not running on the " 1762 "guest"); 1763 } else { 1764 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1765 FORMAT_MESSAGE_FROM_SYSTEM | 1766 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1767 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1768 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1769 NULL)) { 1770 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1771 "t retrieve error message", hr); 1772 } else { 1773 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1774 (LPCTSTR)msg_buffer); 1775 LocalFree(msg_buffer); 1776 } 1777 } 1778 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1779 error_setg(errp, "No internet connection on guest, sync not " 1780 "accurate"); 1781 } 1782 return; 1783 } 1784 1785 /* Validate time passed by user. */ 1786 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1787 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1788 return; 1789 } 1790 1791 time = time_ns / 100 + W32_FT_OFFSET; 1792 1793 tf.dwLowDateTime = (DWORD) time; 1794 tf.dwHighDateTime = (DWORD) (time >> 32); 1795 1796 if (!FileTimeToSystemTime(&tf, &ts)) { 1797 error_setg(errp, "Failed to convert system time %d", 1798 (int)GetLastError()); 1799 return; 1800 } 1801 1802 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1803 if (local_err) { 1804 error_propagate(errp, local_err); 1805 return; 1806 } 1807 1808 if (!SetSystemTime(&ts)) { 1809 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1810 return; 1811 } 1812 } 1813 1814 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1815 { 1816 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1817 DWORD length; 1818 GuestLogicalProcessorList *head, **tail; 1819 Error *local_err = NULL; 1820 int64_t current; 1821 1822 ptr = pslpi = NULL; 1823 length = 0; 1824 current = 0; 1825 head = NULL; 1826 tail = &head; 1827 1828 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1829 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1830 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1831 ptr = pslpi = g_malloc0(length); 1832 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1833 error_setg(&local_err, "Failed to get processor information: %d", 1834 (int)GetLastError()); 1835 } 1836 } else { 1837 error_setg(&local_err, 1838 "Failed to get processor information buffer length: %d", 1839 (int)GetLastError()); 1840 } 1841 1842 while ((local_err == NULL) && (length > 0)) { 1843 if (pslpi->Relationship == RelationProcessorCore) { 1844 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1845 1846 while (cpu_bits > 0) { 1847 if (!!(cpu_bits & 1)) { 1848 GuestLogicalProcessor *vcpu; 1849 1850 vcpu = g_malloc0(sizeof *vcpu); 1851 vcpu->logical_id = current++; 1852 vcpu->online = true; 1853 vcpu->has_can_offline = true; 1854 1855 QAPI_LIST_APPEND(tail, vcpu); 1856 } 1857 cpu_bits >>= 1; 1858 } 1859 } 1860 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1861 pslpi++; /* next entry */ 1862 } 1863 1864 g_free(ptr); 1865 1866 if (local_err == NULL) { 1867 if (head != NULL) { 1868 return head; 1869 } 1870 /* there's no guest with zero VCPUs */ 1871 error_setg(&local_err, "Guest reported zero VCPUs"); 1872 } 1873 1874 qapi_free_GuestLogicalProcessorList(head); 1875 error_propagate(errp, local_err); 1876 return NULL; 1877 } 1878 1879 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1880 { 1881 error_setg(errp, QERR_UNSUPPORTED); 1882 return -1; 1883 } 1884 1885 static gchar * 1886 get_net_error_message(gint error) 1887 { 1888 HMODULE module = NULL; 1889 gchar *retval = NULL; 1890 wchar_t *msg = NULL; 1891 int flags; 1892 size_t nchars; 1893 1894 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1895 FORMAT_MESSAGE_IGNORE_INSERTS | 1896 FORMAT_MESSAGE_FROM_SYSTEM; 1897 1898 if (error >= NERR_BASE && error <= MAX_NERR) { 1899 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1900 1901 if (module != NULL) { 1902 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1903 } 1904 } 1905 1906 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1907 1908 if (msg != NULL) { 1909 nchars = wcslen(msg); 1910 1911 if (nchars >= 2 && 1912 msg[nchars - 1] == L'\n' && 1913 msg[nchars - 2] == L'\r') { 1914 msg[nchars - 2] = L'\0'; 1915 } 1916 1917 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1918 1919 LocalFree(msg); 1920 } 1921 1922 if (module != NULL) { 1923 FreeLibrary(module); 1924 } 1925 1926 return retval; 1927 } 1928 1929 void qmp_guest_set_user_password(const char *username, 1930 const char *password, 1931 bool crypted, 1932 Error **errp) 1933 { 1934 NET_API_STATUS nas; 1935 char *rawpasswddata = NULL; 1936 size_t rawpasswdlen; 1937 wchar_t *user = NULL, *wpass = NULL; 1938 USER_INFO_1003 pi1003 = { 0, }; 1939 GError *gerr = NULL; 1940 1941 if (crypted) { 1942 error_setg(errp, QERR_UNSUPPORTED); 1943 return; 1944 } 1945 1946 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1947 if (!rawpasswddata) { 1948 return; 1949 } 1950 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1951 rawpasswddata[rawpasswdlen] = '\0'; 1952 1953 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1954 if (!user) { 1955 goto done; 1956 } 1957 1958 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1959 if (!wpass) { 1960 goto done; 1961 } 1962 1963 pi1003.usri1003_password = wpass; 1964 nas = NetUserSetInfo(NULL, user, 1965 1003, (LPBYTE)&pi1003, 1966 NULL); 1967 1968 if (nas != NERR_Success) { 1969 gchar *msg = get_net_error_message(nas); 1970 error_setg(errp, "failed to set password: %s", msg); 1971 g_free(msg); 1972 } 1973 1974 done: 1975 if (gerr) { 1976 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1977 g_error_free(gerr); 1978 } 1979 g_free(user); 1980 g_free(wpass); 1981 g_free(rawpasswddata); 1982 } 1983 1984 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1985 { 1986 error_setg(errp, QERR_UNSUPPORTED); 1987 return NULL; 1988 } 1989 1990 GuestMemoryBlockResponseList * 1991 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1992 { 1993 error_setg(errp, QERR_UNSUPPORTED); 1994 return NULL; 1995 } 1996 1997 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1998 { 1999 error_setg(errp, QERR_UNSUPPORTED); 2000 return NULL; 2001 } 2002 2003 /* add unsupported commands to the list of blocked RPCs */ 2004 GList *ga_command_init_blockedrpcs(GList *blockedrpcs) 2005 { 2006 const char *list_unsupported[] = { 2007 "guest-suspend-hybrid", 2008 "guest-set-vcpus", 2009 "guest-get-memory-blocks", "guest-set-memory-blocks", 2010 "guest-get-memory-block-size", "guest-get-memory-block-info", 2011 NULL}; 2012 char **p = (char **)list_unsupported; 2013 2014 while (*p) { 2015 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2016 } 2017 2018 if (!vss_init(true)) { 2019 g_debug("vss_init failed, vss commands are going to be disabled"); 2020 const char *list[] = { 2021 "guest-get-fsinfo", "guest-fsfreeze-status", 2022 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 2023 p = (char **)list; 2024 2025 while (*p) { 2026 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++)); 2027 } 2028 } 2029 2030 return blockedrpcs; 2031 } 2032 2033 /* register init/cleanup routines for stateful command groups */ 2034 void ga_command_state_init(GAState *s, GACommandState *cs) 2035 { 2036 if (!vss_initialized()) { 2037 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2038 } 2039 } 2040 2041 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 2042 typedef struct _GA_WTSINFOA { 2043 WTS_CONNECTSTATE_CLASS State; 2044 DWORD SessionId; 2045 DWORD IncomingBytes; 2046 DWORD OutgoingBytes; 2047 DWORD IncomingFrames; 2048 DWORD OutgoingFrames; 2049 DWORD IncomingCompressedBytes; 2050 DWORD OutgoingCompressedBy; 2051 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 2052 CHAR Domain[DOMAIN_LENGTH]; 2053 CHAR UserName[USERNAME_LENGTH + 1]; 2054 LARGE_INTEGER ConnectTime; 2055 LARGE_INTEGER DisconnectTime; 2056 LARGE_INTEGER LastInputTime; 2057 LARGE_INTEGER LogonTime; 2058 LARGE_INTEGER CurrentTime; 2059 2060 } GA_WTSINFOA; 2061 2062 GuestUserList *qmp_guest_get_users(Error **errp) 2063 { 2064 #define QGA_NANOSECONDS 10000000 2065 2066 GHashTable *cache = NULL; 2067 GuestUserList *head = NULL, **tail = &head; 2068 2069 DWORD buffer_size = 0, count = 0, i = 0; 2070 GA_WTSINFOA *info = NULL; 2071 WTS_SESSION_INFOA *entries = NULL; 2072 GuestUser *user = NULL; 2073 gpointer value = NULL; 2074 INT64 login = 0; 2075 double login_time = 0; 2076 2077 cache = g_hash_table_new(g_str_hash, g_str_equal); 2078 2079 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 2080 for (i = 0; i < count; ++i) { 2081 buffer_size = 0; 2082 info = NULL; 2083 if (WTSQuerySessionInformationA( 2084 NULL, 2085 entries[i].SessionId, 2086 WTSSessionInfo, 2087 (LPSTR *)&info, 2088 &buffer_size 2089 )) { 2090 2091 if (strlen(info->UserName) == 0) { 2092 WTSFreeMemory(info); 2093 continue; 2094 } 2095 2096 login = info->LogonTime.QuadPart; 2097 login -= W32_FT_OFFSET; 2098 login_time = ((double)login) / QGA_NANOSECONDS; 2099 2100 if (g_hash_table_contains(cache, info->UserName)) { 2101 value = g_hash_table_lookup(cache, info->UserName); 2102 user = (GuestUser *)value; 2103 if (user->login_time > login_time) { 2104 user->login_time = login_time; 2105 } 2106 } else { 2107 user = g_new0(GuestUser, 1); 2108 2109 user->user = g_strdup(info->UserName); 2110 user->domain = g_strdup(info->Domain); 2111 2112 user->login_time = login_time; 2113 2114 g_hash_table_add(cache, user->user); 2115 2116 QAPI_LIST_APPEND(tail, user); 2117 } 2118 } 2119 WTSFreeMemory(info); 2120 } 2121 WTSFreeMemory(entries); 2122 } 2123 g_hash_table_destroy(cache); 2124 return head; 2125 } 2126 2127 typedef struct _ga_matrix_lookup_t { 2128 int major; 2129 int minor; 2130 char const *version; 2131 char const *version_id; 2132 } ga_matrix_lookup_t; 2133 2134 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = { 2135 { 2136 /* Desktop editions */ 2137 { 5, 0, "Microsoft Windows 2000", "2000"}, 2138 { 5, 1, "Microsoft Windows XP", "xp"}, 2139 { 6, 0, "Microsoft Windows Vista", "vista"}, 2140 { 6, 1, "Microsoft Windows 7" "7"}, 2141 { 6, 2, "Microsoft Windows 8", "8"}, 2142 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2143 { 0, 0, 0} 2144 },{ 2145 /* Server editions */ 2146 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2147 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2148 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2149 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2150 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2151 { 0, 0, 0}, 2152 { 0, 0, 0} 2153 } 2154 }; 2155 2156 typedef struct _ga_win_10_0_t { 2157 int first_build; 2158 char const *version; 2159 char const *version_id; 2160 } ga_win_10_0_t; 2161 2162 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = { 2163 {14393, "Microsoft Windows Server 2016", "2016"}, 2164 {17763, "Microsoft Windows Server 2019", "2019"}, 2165 {20344, "Microsoft Windows Server 2022", "2022"}, 2166 {0, 0} 2167 }; 2168 2169 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = { 2170 {10240, "Microsoft Windows 10", "10"}, 2171 {22000, "Microsoft Windows 11", "11"}, 2172 {0, 0} 2173 }; 2174 2175 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2176 { 2177 typedef NTSTATUS(WINAPI *rtl_get_version_t)( 2178 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2179 2180 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2181 2182 HMODULE module = GetModuleHandle("ntdll"); 2183 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2184 if (fun == NULL) { 2185 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2186 "Failed to get address of RtlGetVersion"); 2187 return; 2188 } 2189 2190 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2191 rtl_get_version(info); 2192 return; 2193 } 2194 2195 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 2196 { 2197 DWORD major = os_version->dwMajorVersion; 2198 DWORD minor = os_version->dwMinorVersion; 2199 DWORD build = os_version->dwBuildNumber; 2200 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2201 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 2202 ga_win_10_0_t const *win_10_0_table = tbl_idx ? 2203 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX; 2204 ga_win_10_0_t const *win_10_0_version = NULL; 2205 while (table->version != NULL) { 2206 if (major == 10 && minor == 0) { 2207 while (win_10_0_table->version != NULL) { 2208 if (build >= win_10_0_table->first_build) { 2209 win_10_0_version = win_10_0_table; 2210 } 2211 win_10_0_table++; 2212 } 2213 if (win_10_0_table) { 2214 if (id) { 2215 return g_strdup(win_10_0_version->version_id); 2216 } else { 2217 return g_strdup(win_10_0_version->version); 2218 } 2219 } 2220 } else if (major == table->major && minor == table->minor) { 2221 if (id) { 2222 return g_strdup(table->version_id); 2223 } else { 2224 return g_strdup(table->version); 2225 } 2226 } 2227 ++table; 2228 } 2229 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2230 major, minor); 2231 return g_strdup("N/A"); 2232 } 2233 2234 static char *ga_get_win_product_name(Error **errp) 2235 { 2236 HKEY key = INVALID_HANDLE_VALUE; 2237 DWORD size = 128; 2238 char *result = g_malloc0(size); 2239 LONG err = ERROR_SUCCESS; 2240 2241 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2242 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2243 &key); 2244 if (err != ERROR_SUCCESS) { 2245 error_setg_win32(errp, err, "failed to open registry key"); 2246 g_free(result); 2247 return NULL; 2248 } 2249 2250 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2251 (LPBYTE)result, &size); 2252 if (err == ERROR_MORE_DATA) { 2253 slog("ProductName longer than expected (%lu bytes), retrying", 2254 size); 2255 g_free(result); 2256 result = NULL; 2257 if (size > 0) { 2258 result = g_malloc0(size); 2259 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2260 (LPBYTE)result, &size); 2261 } 2262 } 2263 if (err != ERROR_SUCCESS) { 2264 error_setg_win32(errp, err, "failed to retrive ProductName"); 2265 goto fail; 2266 } 2267 2268 RegCloseKey(key); 2269 return result; 2270 2271 fail: 2272 if (key != INVALID_HANDLE_VALUE) { 2273 RegCloseKey(key); 2274 } 2275 g_free(result); 2276 return NULL; 2277 } 2278 2279 static char *ga_get_current_arch(void) 2280 { 2281 SYSTEM_INFO info; 2282 GetNativeSystemInfo(&info); 2283 char *result = NULL; 2284 switch (info.wProcessorArchitecture) { 2285 case PROCESSOR_ARCHITECTURE_AMD64: 2286 result = g_strdup("x86_64"); 2287 break; 2288 case PROCESSOR_ARCHITECTURE_ARM: 2289 result = g_strdup("arm"); 2290 break; 2291 case PROCESSOR_ARCHITECTURE_IA64: 2292 result = g_strdup("ia64"); 2293 break; 2294 case PROCESSOR_ARCHITECTURE_INTEL: 2295 result = g_strdup("x86"); 2296 break; 2297 case PROCESSOR_ARCHITECTURE_UNKNOWN: 2298 default: 2299 slog("unknown processor architecture 0x%0x", 2300 info.wProcessorArchitecture); 2301 result = g_strdup("unknown"); 2302 break; 2303 } 2304 return result; 2305 } 2306 2307 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 2308 { 2309 Error *local_err = NULL; 2310 OSVERSIONINFOEXW os_version = {0}; 2311 bool server; 2312 char *product_name; 2313 GuestOSInfo *info; 2314 2315 ga_get_win_version(&os_version, &local_err); 2316 if (local_err) { 2317 error_propagate(errp, local_err); 2318 return NULL; 2319 } 2320 2321 server = os_version.wProductType != VER_NT_WORKSTATION; 2322 product_name = ga_get_win_product_name(errp); 2323 if (product_name == NULL) { 2324 return NULL; 2325 } 2326 2327 info = g_new0(GuestOSInfo, 1); 2328 2329 info->kernel_version = g_strdup_printf("%lu.%lu", 2330 os_version.dwMajorVersion, 2331 os_version.dwMinorVersion); 2332 info->kernel_release = g_strdup_printf("%lu", 2333 os_version.dwBuildNumber); 2334 info->machine = ga_get_current_arch(); 2335 2336 info->id = g_strdup("mswindows"); 2337 info->name = g_strdup("Microsoft Windows"); 2338 info->pretty_name = product_name; 2339 info->version = ga_get_win_name(&os_version, false); 2340 info->version_id = ga_get_win_name(&os_version, true); 2341 info->variant = g_strdup(server ? "server" : "client"); 2342 info->variant_id = g_strdup(server ? "server" : "client"); 2343 2344 return info; 2345 } 2346 2347 /* 2348 * Safely get device property. Returned strings are using wide characters. 2349 * Caller is responsible for freeing the buffer. 2350 */ 2351 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName, 2352 PDEVPROPTYPE propType) 2353 { 2354 CONFIGRET cr; 2355 g_autofree LPBYTE buffer = NULL; 2356 ULONG buffer_len = 0; 2357 2358 /* First query for needed space */ 2359 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2360 buffer, &buffer_len, 0); 2361 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) { 2362 2363 slog("failed to get property size, error=0x%lx", cr); 2364 return NULL; 2365 } 2366 buffer = g_new0(BYTE, buffer_len + 1); 2367 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2368 buffer, &buffer_len, 0); 2369 if (cr != CR_SUCCESS) { 2370 slog("failed to get device property, error=0x%lx", cr); 2371 return NULL; 2372 } 2373 return g_steal_pointer(&buffer); 2374 } 2375 2376 static GStrv ga_get_hardware_ids(DEVINST devInstance) 2377 { 2378 GArray *values = NULL; 2379 DEVPROPTYPE cm_type; 2380 LPWSTR id; 2381 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance, 2382 &qga_DEVPKEY_Device_HardwareIds, &cm_type); 2383 if (property == NULL) { 2384 slog("failed to get hardware IDs"); 2385 return NULL; 2386 } 2387 if (*property == '\0') { 2388 /* empty list */ 2389 return NULL; 2390 } 2391 values = g_array_new(TRUE, TRUE, sizeof(gchar *)); 2392 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) { 2393 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL); 2394 g_array_append_val(values, id8); 2395 } 2396 return (GStrv)g_array_free(values, FALSE); 2397 } 2398 2399 /* 2400 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices 2401 */ 2402 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)" 2403 2404 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 2405 { 2406 GuestDeviceInfoList *head = NULL, **tail = &head; 2407 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 2408 SP_DEVINFO_DATA dev_info_data; 2409 int i, j; 2410 GError *gerr = NULL; 2411 g_autoptr(GRegex) device_pci_re = NULL; 2412 DEVPROPTYPE cm_type; 2413 2414 device_pci_re = g_regex_new(DEVICE_PCI_RE, 2415 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0, 2416 &gerr); 2417 g_assert(device_pci_re != NULL); 2418 2419 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 2420 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES); 2421 if (dev_info == INVALID_HANDLE_VALUE) { 2422 error_setg(errp, "failed to get device tree"); 2423 return NULL; 2424 } 2425 2426 slog("enumerating devices"); 2427 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 2428 bool skip = true; 2429 g_autofree LPWSTR name = NULL; 2430 g_autofree LPFILETIME date = NULL; 2431 g_autofree LPWSTR version = NULL; 2432 g_auto(GStrv) hw_ids = NULL; 2433 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1); 2434 g_autofree char *vendor_id = NULL; 2435 g_autofree char *device_id = NULL; 2436 2437 name = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2438 &qga_DEVPKEY_NAME, &cm_type); 2439 if (name == NULL) { 2440 slog("failed to get device description"); 2441 continue; 2442 } 2443 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL); 2444 if (device->driver_name == NULL) { 2445 error_setg(errp, "conversion to utf8 failed (driver name)"); 2446 return NULL; 2447 } 2448 slog("querying device: %s", device->driver_name); 2449 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst); 2450 if (hw_ids == NULL) { 2451 continue; 2452 } 2453 for (j = 0; hw_ids[j] != NULL; j++) { 2454 g_autoptr(GMatchInfo) match_info; 2455 GuestDeviceIdPCI *id; 2456 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) { 2457 continue; 2458 } 2459 skip = false; 2460 2461 vendor_id = g_match_info_fetch(match_info, 1); 2462 device_id = g_match_info_fetch(match_info, 2); 2463 2464 device->id = g_new0(GuestDeviceId, 1); 2465 device->id->type = GUEST_DEVICE_TYPE_PCI; 2466 id = &device->id->u.pci; 2467 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16); 2468 id->device_id = g_ascii_strtoull(device_id, NULL, 16); 2469 2470 break; 2471 } 2472 if (skip) { 2473 continue; 2474 } 2475 2476 version = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2477 &qga_DEVPKEY_Device_DriverVersion, &cm_type); 2478 if (version == NULL) { 2479 slog("failed to get driver version"); 2480 continue; 2481 } 2482 device->driver_version = g_utf16_to_utf8(version, -1, NULL, 2483 NULL, NULL); 2484 if (device->driver_version == NULL) { 2485 error_setg(errp, "conversion to utf8 failed (driver version)"); 2486 return NULL; 2487 } 2488 2489 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst, 2490 &qga_DEVPKEY_Device_DriverDate, &cm_type); 2491 if (date == NULL) { 2492 slog("failed to get driver date"); 2493 continue; 2494 } 2495 device->driver_date = filetime_to_ns(date); 2496 device->has_driver_date = true; 2497 2498 slog("driver: %s\ndriver version: %" PRId64 ",%s\n", 2499 device->driver_name, device->driver_date, 2500 device->driver_version); 2501 QAPI_LIST_APPEND(tail, g_steal_pointer(&device)); 2502 } 2503 2504 if (dev_info != INVALID_HANDLE_VALUE) { 2505 SetupDiDestroyDeviceInfoList(dev_info); 2506 } 2507 return head; 2508 } 2509 2510 char *qga_get_host_name(Error **errp) 2511 { 2512 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1]; 2513 DWORD size = G_N_ELEMENTS(tmp); 2514 2515 if (GetComputerNameW(tmp, &size) == 0) { 2516 error_setg_win32(errp, GetLastError(), "failed close handle"); 2517 return NULL; 2518 } 2519 2520 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); 2521 } 2522 2523 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) 2524 { 2525 error_setg(errp, QERR_UNSUPPORTED); 2526 return NULL; 2527 } 2528 2529 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) 2530 { 2531 error_setg(errp, QERR_UNSUPPORTED); 2532 return NULL; 2533 } 2534