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