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