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 #ifdef CONFIG_QGA_NTDDSCSI 22 #include <winioctl.h> 23 #include <ntddscsi.h> 24 #endif 25 #include <setupapi.h> 26 #include <cfgmgr32.h> 27 #include <initguid.h> 28 #include <devpropdef.h> 29 #include <lm.h> 30 #include <wtsapi32.h> 31 #include <wininet.h> 32 33 #include "guest-agent-core.h" 34 #include "vss-win32.h" 35 #include "qga-qapi-commands.h" 36 #include "qapi/error.h" 37 #include "qapi/qmp/qerror.h" 38 #include "qemu/queue.h" 39 #include "qemu/host-utils.h" 40 #include "qemu/base64.h" 41 #include "commands-common.h" 42 43 /* 44 * The following should be in devpkey.h, but it isn't. The key names were 45 * prefixed to avoid (future) name clashes. Once the definitions get into 46 * mingw the following lines can be removed. 47 */ 48 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5, 49 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10); 50 /* DEVPROP_TYPE_STRING */ 51 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c, 52 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3); 53 /* DEVPROP_TYPE_STRING_LIST */ 54 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d, 55 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2); 56 /* DEVPROP_TYPE_FILETIME */ 57 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d, 58 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3); 59 /* DEVPROP_TYPE_STRING */ 60 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */ 61 #ifndef CM_Get_DevNode_Property 62 #pragma GCC diagnostic push 63 #pragma GCC diagnostic ignored "-Wredundant-decls" 64 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW( 65 DEVINST dnDevInst, 66 CONST DEVPROPKEY * PropertyKey, 67 DEVPROPTYPE * PropertyType, 68 PBYTE PropertyBuffer, 69 PULONG PropertyBufferSize, 70 ULONG ulFlags 71 ); 72 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW 73 #pragma GCC diagnostic pop 74 #endif 75 76 #ifndef SHTDN_REASON_FLAG_PLANNED 77 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 78 #endif 79 80 /* multiple of 100 nanoseconds elapsed between windows baseline 81 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 82 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 83 (365 * (1970 - 1601) + \ 84 (1970 - 1601) / 4 - 3)) 85 86 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 87 88 struct GuestFileHandle { 89 int64_t id; 90 HANDLE fh; 91 QTAILQ_ENTRY(GuestFileHandle) next; 92 }; 93 94 static struct { 95 QTAILQ_HEAD(, GuestFileHandle) filehandles; 96 } guest_file_state = { 97 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 98 }; 99 100 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 101 102 typedef struct OpenFlags { 103 const char *forms; 104 DWORD desired_access; 105 DWORD creation_disposition; 106 } OpenFlags; 107 static OpenFlags guest_file_open_modes[] = { 108 {"r", GENERIC_READ, OPEN_EXISTING}, 109 {"rb", GENERIC_READ, OPEN_EXISTING}, 110 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 111 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 112 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 113 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 114 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 115 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING}, 116 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 117 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 118 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS}, 119 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 120 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }, 121 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS } 122 }; 123 124 #define debug_error(msg) do { \ 125 char *suffix = g_win32_error_message(GetLastError()); \ 126 g_debug("%s: %s", (msg), suffix); \ 127 g_free(suffix); \ 128 } while (0) 129 130 static OpenFlags *find_open_flag(const char *mode_str) 131 { 132 int mode; 133 Error **errp = NULL; 134 135 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 136 OpenFlags *flags = guest_file_open_modes + mode; 137 138 if (strcmp(flags->forms, mode_str) == 0) { 139 return flags; 140 } 141 } 142 143 error_setg(errp, "invalid file open mode '%s'", mode_str); 144 return NULL; 145 } 146 147 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 148 { 149 GuestFileHandle *gfh; 150 int64_t handle; 151 152 handle = ga_get_fd_handle(ga_state, errp); 153 if (handle < 0) { 154 return -1; 155 } 156 gfh = g_new0(GuestFileHandle, 1); 157 gfh->id = handle; 158 gfh->fh = fh; 159 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 160 161 return handle; 162 } 163 164 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 165 { 166 GuestFileHandle *gfh; 167 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 168 if (gfh->id == id) { 169 return gfh; 170 } 171 } 172 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 173 return NULL; 174 } 175 176 static void handle_set_nonblocking(HANDLE fh) 177 { 178 DWORD file_type, pipe_state; 179 file_type = GetFileType(fh); 180 if (file_type != FILE_TYPE_PIPE) { 181 return; 182 } 183 /* If file_type == FILE_TYPE_PIPE, according to MSDN 184 * the specified file is socket or named pipe */ 185 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 186 NULL, NULL, NULL, 0)) { 187 return; 188 } 189 /* The fd is named pipe fd */ 190 if (pipe_state & PIPE_NOWAIT) { 191 return; 192 } 193 194 pipe_state |= PIPE_NOWAIT; 195 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 196 } 197 198 int64_t qmp_guest_file_open(const char *path, bool has_mode, 199 const char *mode, Error **errp) 200 { 201 int64_t fd = -1; 202 HANDLE fh; 203 HANDLE templ_file = NULL; 204 DWORD share_mode = FILE_SHARE_READ; 205 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 206 LPSECURITY_ATTRIBUTES sa_attr = NULL; 207 OpenFlags *guest_flags; 208 GError *gerr = NULL; 209 wchar_t *w_path = NULL; 210 211 if (!has_mode) { 212 mode = "r"; 213 } 214 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 215 guest_flags = find_open_flag(mode); 216 if (guest_flags == NULL) { 217 error_setg(errp, "invalid file open mode"); 218 goto done; 219 } 220 221 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr); 222 if (!w_path) { 223 goto done; 224 } 225 226 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr, 227 guest_flags->creation_disposition, flags_and_attr, 228 templ_file); 229 if (fh == INVALID_HANDLE_VALUE) { 230 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 231 path); 232 goto done; 233 } 234 235 /* set fd non-blocking to avoid common use cases (like reading from a 236 * named pipe) from hanging the agent 237 */ 238 handle_set_nonblocking(fh); 239 240 fd = guest_file_handle_add(fh, errp); 241 if (fd < 0) { 242 CloseHandle(fh); 243 error_setg(errp, "failed to add handle to qmp handle table"); 244 goto done; 245 } 246 247 slog("guest-file-open, handle: % " PRId64, fd); 248 249 done: 250 if (gerr) { 251 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 252 g_error_free(gerr); 253 } 254 g_free(w_path); 255 return fd; 256 } 257 258 void qmp_guest_file_close(int64_t handle, Error **errp) 259 { 260 bool ret; 261 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 262 slog("guest-file-close called, handle: %" PRId64, handle); 263 if (gfh == NULL) { 264 return; 265 } 266 ret = CloseHandle(gfh->fh); 267 if (!ret) { 268 error_setg_win32(errp, GetLastError(), "failed close handle"); 269 return; 270 } 271 272 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 273 g_free(gfh); 274 } 275 276 static void acquire_privilege(const char *name, Error **errp) 277 { 278 HANDLE token = NULL; 279 TOKEN_PRIVILEGES priv; 280 Error *local_err = NULL; 281 282 if (OpenProcessToken(GetCurrentProcess(), 283 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token)) 284 { 285 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 286 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 287 "no luid for requested privilege"); 288 goto out; 289 } 290 291 priv.PrivilegeCount = 1; 292 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 293 294 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 295 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 296 "unable to acquire requested privilege"); 297 goto out; 298 } 299 300 } else { 301 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 302 "failed to open privilege token"); 303 } 304 305 out: 306 if (token) { 307 CloseHandle(token); 308 } 309 error_propagate(errp, local_err); 310 } 311 312 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 313 Error **errp) 314 { 315 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 316 if (!thread) { 317 error_setg(errp, QERR_QGA_COMMAND_FAILED, 318 "failed to dispatch asynchronous command"); 319 } 320 } 321 322 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 323 { 324 Error *local_err = NULL; 325 UINT shutdown_flag = EWX_FORCE; 326 327 slog("guest-shutdown called, mode: %s", mode); 328 329 if (!has_mode || strcmp(mode, "powerdown") == 0) { 330 shutdown_flag |= EWX_POWEROFF; 331 } else if (strcmp(mode, "halt") == 0) { 332 shutdown_flag |= EWX_SHUTDOWN; 333 } else if (strcmp(mode, "reboot") == 0) { 334 shutdown_flag |= EWX_REBOOT; 335 } else { 336 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 337 "'halt', 'powerdown', or 'reboot'"); 338 return; 339 } 340 341 /* Request a shutdown privilege, but try to shut down the system 342 anyway. */ 343 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 344 if (local_err) { 345 error_propagate(errp, local_err); 346 return; 347 } 348 349 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 350 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 351 slog("guest-shutdown failed: %s", emsg); 352 error_setg_win32(errp, GetLastError(), "guest-shutdown failed"); 353 } 354 } 355 356 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh, 357 int64_t count, Error **errp) 358 { 359 GuestFileRead *read_data = NULL; 360 guchar *buf; 361 HANDLE fh = gfh->fh; 362 bool is_ok; 363 DWORD read_count; 364 365 buf = g_malloc0(count + 1); 366 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 367 if (!is_ok) { 368 error_setg_win32(errp, GetLastError(), "failed to read file"); 369 } else { 370 buf[read_count] = 0; 371 read_data = g_new0(GuestFileRead, 1); 372 read_data->count = (size_t)read_count; 373 read_data->eof = read_count == 0; 374 375 if (read_count != 0) { 376 read_data->buf_b64 = g_base64_encode(buf, read_count); 377 } 378 } 379 g_free(buf); 380 381 return read_data; 382 } 383 384 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 385 bool has_count, int64_t count, 386 Error **errp) 387 { 388 GuestFileWrite *write_data = NULL; 389 guchar *buf; 390 gsize buf_len; 391 bool is_ok; 392 DWORD write_count; 393 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 394 HANDLE fh; 395 396 if (!gfh) { 397 return NULL; 398 } 399 fh = gfh->fh; 400 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 401 if (!buf) { 402 return NULL; 403 } 404 405 if (!has_count) { 406 count = buf_len; 407 } else if (count < 0 || count > buf_len) { 408 error_setg(errp, "value '%" PRId64 409 "' is invalid for argument count", count); 410 goto done; 411 } 412 413 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 414 if (!is_ok) { 415 error_setg_win32(errp, GetLastError(), "failed to write to file"); 416 slog("guest-file-write-failed, handle: %" PRId64, handle); 417 } else { 418 write_data = g_new0(GuestFileWrite, 1); 419 write_data->count = (size_t) write_count; 420 } 421 422 done: 423 g_free(buf); 424 return write_data; 425 } 426 427 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 428 GuestFileWhence *whence_code, 429 Error **errp) 430 { 431 GuestFileHandle *gfh; 432 GuestFileSeek *seek_data; 433 HANDLE fh; 434 LARGE_INTEGER new_pos, off_pos; 435 off_pos.QuadPart = offset; 436 BOOL res; 437 int whence; 438 Error *err = NULL; 439 440 gfh = guest_file_handle_find(handle, errp); 441 if (!gfh) { 442 return NULL; 443 } 444 445 /* We stupidly exposed 'whence':'int' in our qapi */ 446 whence = ga_parse_whence(whence_code, &err); 447 if (err) { 448 error_propagate(errp, err); 449 return NULL; 450 } 451 452 fh = gfh->fh; 453 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 454 if (!res) { 455 error_setg_win32(errp, GetLastError(), "failed to seek file"); 456 return NULL; 457 } 458 seek_data = g_new0(GuestFileSeek, 1); 459 seek_data->position = new_pos.QuadPart; 460 return seek_data; 461 } 462 463 void qmp_guest_file_flush(int64_t handle, Error **errp) 464 { 465 HANDLE fh; 466 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 467 if (!gfh) { 468 return; 469 } 470 471 fh = gfh->fh; 472 if (!FlushFileBuffers(fh)) { 473 error_setg_win32(errp, GetLastError(), "failed to flush file"); 474 } 475 } 476 477 #ifdef CONFIG_QGA_NTDDSCSI 478 479 static GuestDiskBusType win2qemu[] = { 480 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 481 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 482 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 483 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 484 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 485 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 486 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 487 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 488 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 489 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 490 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 491 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 492 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 493 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 494 #if (_WIN32_WINNT >= 0x0601) 495 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 496 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 497 #endif 498 }; 499 500 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 501 { 502 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 503 return GUEST_DISK_BUS_TYPE_UNKNOWN; 504 } 505 return win2qemu[(int)bus]; 506 } 507 508 DEFINE_GUID(GUID_DEVINTERFACE_DISK, 509 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 510 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 511 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT, 512 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82, 513 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 514 515 static GuestPCIAddress *get_pci_info(int number, Error **errp) 516 { 517 HDEVINFO dev_info; 518 SP_DEVINFO_DATA dev_info_data; 519 SP_DEVICE_INTERFACE_DATA dev_iface_data; 520 HANDLE dev_file; 521 int i; 522 GuestPCIAddress *pci = NULL; 523 bool partial_pci = false; 524 525 pci = g_malloc0(sizeof(*pci)); 526 pci->domain = -1; 527 pci->slot = -1; 528 pci->function = -1; 529 pci->bus = -1; 530 531 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 532 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 533 if (dev_info == INVALID_HANDLE_VALUE) { 534 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 535 goto out; 536 } 537 538 g_debug("enumerating devices"); 539 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 540 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 541 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 542 PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 543 STORAGE_DEVICE_NUMBER sdn; 544 char *parent_dev_id = NULL; 545 HDEVINFO parent_dev_info; 546 SP_DEVINFO_DATA parent_dev_info_data; 547 DWORD j; 548 DWORD size = 0; 549 550 g_debug("getting device path"); 551 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 552 &GUID_DEVINTERFACE_DISK, 0, 553 &dev_iface_data)) { 554 while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 555 pdev_iface_detail_data, 556 size, &size, 557 &dev_info_data)) { 558 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 559 pdev_iface_detail_data = g_malloc(size); 560 pdev_iface_detail_data->cbSize = 561 sizeof(*pdev_iface_detail_data); 562 } else { 563 error_setg_win32(errp, GetLastError(), 564 "failed to get device interfaces"); 565 goto free_dev_info; 566 } 567 } 568 569 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 570 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 571 NULL); 572 g_free(pdev_iface_detail_data); 573 574 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 575 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 576 CloseHandle(dev_file); 577 error_setg_win32(errp, GetLastError(), 578 "failed to get device slot number"); 579 goto free_dev_info; 580 } 581 582 CloseHandle(dev_file); 583 if (sdn.DeviceNumber != number) { 584 continue; 585 } 586 } else { 587 error_setg_win32(errp, GetLastError(), 588 "failed to get device interfaces"); 589 goto free_dev_info; 590 } 591 592 g_debug("found device slot %d. Getting storage controller", number); 593 { 594 CONFIGRET cr; 595 DEVINST dev_inst, parent_dev_inst; 596 ULONG dev_id_size = 0; 597 598 size = 0; 599 while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 600 parent_dev_id, size, &size)) { 601 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 602 parent_dev_id = g_malloc(size); 603 } else { 604 error_setg_win32(errp, GetLastError(), 605 "failed to get device instance ID"); 606 goto out; 607 } 608 } 609 610 /* 611 * CM API used here as opposed to 612 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 613 * which exports are only available in mingw-w64 6+ 614 */ 615 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 616 if (cr != CR_SUCCESS) { 617 g_error("CM_Locate_DevInst failed with code %lx", cr); 618 error_setg_win32(errp, GetLastError(), 619 "failed to get device instance"); 620 goto out; 621 } 622 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 623 if (cr != CR_SUCCESS) { 624 g_error("CM_Get_Parent failed with code %lx", cr); 625 error_setg_win32(errp, GetLastError(), 626 "failed to get parent device instance"); 627 goto out; 628 } 629 630 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 631 if (cr != CR_SUCCESS) { 632 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 633 error_setg_win32(errp, GetLastError(), 634 "failed to get parent device ID length"); 635 goto out; 636 } 637 638 ++dev_id_size; 639 if (dev_id_size > size) { 640 g_free(parent_dev_id); 641 parent_dev_id = g_malloc(dev_id_size); 642 } 643 644 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 645 0); 646 if (cr != CR_SUCCESS) { 647 g_error("CM_Get_Device_ID failed with code %lx", cr); 648 error_setg_win32(errp, GetLastError(), 649 "failed to get parent device ID"); 650 goto out; 651 } 652 } 653 654 g_debug("querying storage controller %s for PCI information", 655 parent_dev_id); 656 parent_dev_info = 657 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 658 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 659 g_free(parent_dev_id); 660 661 if (parent_dev_info == INVALID_HANDLE_VALUE) { 662 error_setg_win32(errp, GetLastError(), 663 "failed to get parent device"); 664 goto out; 665 } 666 667 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 668 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 669 error_setg_win32(errp, GetLastError(), 670 "failed to get parent device data"); 671 goto out; 672 } 673 674 for (j = 0; 675 SetupDiEnumDeviceInfo(parent_dev_info, j, &parent_dev_info_data); 676 j++) { 677 DWORD addr, bus, ui_slot, type; 678 int func, slot; 679 680 /* 681 * There is no need to allocate buffer in the next functions. The 682 * size is known and ULONG according to 683 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 684 */ 685 if (!SetupDiGetDeviceRegistryProperty( 686 parent_dev_info, &parent_dev_info_data, SPDRP_BUSNUMBER, 687 &type, (PBYTE)&bus, size, NULL)) { 688 debug_error("failed to get PCI bus"); 689 bus = -1; 690 partial_pci = true; 691 } 692 693 /* 694 * The function retrieves the device's address. This value will be 695 * transformed into device function and number 696 */ 697 if (!SetupDiGetDeviceRegistryProperty( 698 parent_dev_info, &parent_dev_info_data, SPDRP_ADDRESS, 699 &type, (PBYTE)&addr, size, NULL)) { 700 debug_error("failed to get PCI address"); 701 addr = -1; 702 partial_pci = true; 703 } 704 705 /* 706 * This call returns UINumber of DEVICE_CAPABILITIES structure. 707 * This number is typically a user-perceived slot number. 708 */ 709 if (!SetupDiGetDeviceRegistryProperty( 710 parent_dev_info, &parent_dev_info_data, SPDRP_UI_NUMBER, 711 &type, (PBYTE)&ui_slot, size, NULL)) { 712 debug_error("failed to get PCI slot"); 713 ui_slot = -1; 714 partial_pci = true; 715 } 716 717 /* 718 * SetupApi gives us the same information as driver with 719 * IoGetDeviceProperty. According to Microsoft: 720 * 721 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 722 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 723 * SPDRP_ADDRESS is propertyAddress, so we do the same. 724 * 725 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 726 */ 727 if (partial_pci) { 728 pci->domain = -1; 729 pci->slot = -1; 730 pci->function = -1; 731 pci->bus = -1; 732 continue; 733 } else { 734 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 735 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 736 if ((int)ui_slot != slot) { 737 g_debug("mismatch with reported slot values: %d vs %d", 738 (int)ui_slot, slot); 739 } 740 pci->domain = 0; 741 pci->slot = (int)ui_slot; 742 pci->function = func; 743 pci->bus = (int)bus; 744 break; 745 } 746 } 747 SetupDiDestroyDeviceInfoList(parent_dev_info); 748 break; 749 } 750 751 free_dev_info: 752 SetupDiDestroyDeviceInfoList(dev_info); 753 out: 754 return pci; 755 } 756 757 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 758 Error **errp) 759 { 760 STORAGE_PROPERTY_QUERY query; 761 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 762 DWORD received; 763 ULONG size = sizeof(buf); 764 765 dev_desc = &buf; 766 query.PropertyId = StorageDeviceProperty; 767 query.QueryType = PropertyStandardQuery; 768 769 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 770 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 771 size, &received, NULL)) { 772 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 773 return; 774 } 775 disk->bus_type = find_bus_type(dev_desc->BusType); 776 g_debug("bus type %d", disk->bus_type); 777 778 /* Query once more. Now with long enough buffer. */ 779 size = dev_desc->Size; 780 dev_desc = g_malloc0(size); 781 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 782 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 783 size, &received, NULL)) { 784 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 785 g_debug("failed to get serial number"); 786 goto out_free; 787 } 788 if (dev_desc->SerialNumberOffset > 0) { 789 const char *serial; 790 size_t len; 791 792 if (dev_desc->SerialNumberOffset >= received) { 793 error_setg(errp, "failed to get serial number: offset outside the buffer"); 794 g_debug("serial number offset outside the buffer"); 795 goto out_free; 796 } 797 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 798 len = received - dev_desc->SerialNumberOffset; 799 g_debug("serial number \"%s\"", serial); 800 if (*serial != 0) { 801 disk->serial = g_strndup(serial, len); 802 disk->has_serial = true; 803 } 804 } 805 out_free: 806 g_free(dev_desc); 807 808 return; 809 } 810 811 static void get_single_disk_info(int disk_number, 812 GuestDiskAddress *disk, Error **errp) 813 { 814 SCSI_ADDRESS addr, *scsi_ad; 815 DWORD len; 816 HANDLE disk_h; 817 Error *local_err = NULL; 818 819 scsi_ad = &addr; 820 821 g_debug("getting disk info for: %s", disk->dev); 822 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 823 0, NULL); 824 if (disk_h == INVALID_HANDLE_VALUE) { 825 error_setg_win32(errp, GetLastError(), "failed to open disk"); 826 return; 827 } 828 829 get_disk_properties(disk_h, disk, &local_err); 830 if (local_err) { 831 error_propagate(errp, local_err); 832 goto err_close; 833 } 834 835 g_debug("bus type %d", disk->bus_type); 836 /* always set pci_controller as required by schema. get_pci_info() should 837 * report -1 values for non-PCI buses rather than fail. fail the command 838 * if that doesn't hold since that suggests some other unexpected 839 * breakage 840 */ 841 disk->pci_controller = get_pci_info(disk_number, &local_err); 842 if (local_err) { 843 error_propagate(errp, local_err); 844 goto err_close; 845 } 846 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 847 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 848 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 849 /* This bus type is not supported before Windows Server 2003 SP1 */ 850 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 851 ) { 852 /* We are able to use the same ioctls for different bus types 853 * according to Microsoft docs 854 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 855 g_debug("getting SCSI info"); 856 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 857 sizeof(SCSI_ADDRESS), &len, NULL)) { 858 disk->unit = addr.Lun; 859 disk->target = addr.TargetId; 860 disk->bus = addr.PathId; 861 } 862 /* We do not set error in this case, because we still have enough 863 * information about volume. */ 864 } 865 866 err_close: 867 CloseHandle(disk_h); 868 return; 869 } 870 871 /* VSS provider works with volumes, thus there is no difference if 872 * the volume consist of spanned disks. Info about the first disk in the 873 * volume is returned for the spanned disk group (LVM) */ 874 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 875 { 876 Error *local_err = NULL; 877 GuestDiskAddressList *list = NULL; 878 GuestDiskAddress *disk = NULL; 879 int i; 880 HANDLE vol_h; 881 DWORD size; 882 PVOLUME_DISK_EXTENTS extents = NULL; 883 884 /* strip final backslash */ 885 char *name = g_strdup(guid); 886 if (g_str_has_suffix(name, "\\")) { 887 name[strlen(name) - 1] = 0; 888 } 889 890 g_debug("opening %s", name); 891 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 892 0, NULL); 893 if (vol_h == INVALID_HANDLE_VALUE) { 894 error_setg_win32(errp, GetLastError(), "failed to open volume"); 895 goto out; 896 } 897 898 /* Get list of extents */ 899 g_debug("getting disk extents"); 900 size = sizeof(VOLUME_DISK_EXTENTS); 901 extents = g_malloc0(size); 902 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 903 0, extents, size, &size, NULL)) { 904 DWORD last_err = GetLastError(); 905 if (last_err == ERROR_MORE_DATA) { 906 /* Try once more with big enough buffer */ 907 g_free(extents); 908 extents = g_malloc0(size); 909 if (!DeviceIoControl( 910 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 911 0, extents, size, NULL, NULL)) { 912 error_setg_win32(errp, GetLastError(), 913 "failed to get disk extents"); 914 goto out; 915 } 916 } else if (last_err == ERROR_INVALID_FUNCTION) { 917 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 918 g_debug("volume not on disk"); 919 disk = g_malloc0(sizeof(GuestDiskAddress)); 920 disk->has_dev = true; 921 disk->dev = g_strdup(name); 922 get_single_disk_info(0xffffffff, disk, &local_err); 923 if (local_err) { 924 g_debug("failed to get disk info, ignoring error: %s", 925 error_get_pretty(local_err)); 926 error_free(local_err); 927 goto out; 928 } 929 QAPI_LIST_PREPEND(list, disk); 930 disk = NULL; 931 goto out; 932 } else { 933 error_setg_win32(errp, GetLastError(), 934 "failed to get disk extents"); 935 goto out; 936 } 937 } 938 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 939 940 /* Go through each extent */ 941 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 942 disk = g_malloc0(sizeof(GuestDiskAddress)); 943 944 /* Disk numbers directly correspond to numbers used in UNCs 945 * 946 * See documentation for DISK_EXTENT: 947 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 948 * 949 * See also Naming Files, Paths and Namespaces: 950 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 951 */ 952 disk->has_dev = true; 953 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 954 extents->Extents[i].DiskNumber); 955 956 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 957 if (local_err) { 958 error_propagate(errp, local_err); 959 goto out; 960 } 961 QAPI_LIST_PREPEND(list, disk); 962 disk = NULL; 963 } 964 965 966 out: 967 if (vol_h != INVALID_HANDLE_VALUE) { 968 CloseHandle(vol_h); 969 } 970 qapi_free_GuestDiskAddress(disk); 971 g_free(extents); 972 g_free(name); 973 974 return list; 975 } 976 977 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 978 { 979 ERRP_GUARD(); 980 GuestDiskInfoList *ret = NULL; 981 HDEVINFO dev_info; 982 SP_DEVICE_INTERFACE_DATA dev_iface_data; 983 int i; 984 985 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 986 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 987 if (dev_info == INVALID_HANDLE_VALUE) { 988 error_setg_win32(errp, GetLastError(), "failed to get device tree"); 989 return NULL; 990 } 991 992 g_debug("enumerating devices"); 993 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 994 for (i = 0; 995 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK, 996 i, &dev_iface_data); 997 i++) { 998 GuestDiskAddress *address = NULL; 999 GuestDiskInfo *disk = NULL; 1000 Error *local_err = NULL; 1001 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA 1002 pdev_iface_detail_data = NULL; 1003 STORAGE_DEVICE_NUMBER sdn; 1004 HANDLE dev_file; 1005 DWORD size = 0; 1006 BOOL result; 1007 int attempt; 1008 1009 g_debug(" getting device path"); 1010 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) { 1011 result = SetupDiGetDeviceInterfaceDetail(dev_info, 1012 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL); 1013 if (result) { 1014 break; 1015 } 1016 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 1017 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data, 1018 size); 1019 pdev_iface_detail_data->cbSize = 1020 sizeof(*pdev_iface_detail_data); 1021 } else { 1022 g_debug("failed to get device interface details"); 1023 break; 1024 } 1025 } 1026 if (!result) { 1027 g_debug("skipping device"); 1028 continue; 1029 } 1030 1031 g_debug(" device: %s", pdev_iface_detail_data->DevicePath); 1032 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 1033 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL); 1034 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 1035 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 1036 CloseHandle(dev_file); 1037 debug_error("failed to get storage device number"); 1038 continue; 1039 } 1040 CloseHandle(dev_file); 1041 1042 disk = g_new0(GuestDiskInfo, 1); 1043 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 1044 sdn.DeviceNumber); 1045 1046 g_debug(" number: %lu", sdn.DeviceNumber); 1047 address = g_malloc0(sizeof(GuestDiskAddress)); 1048 address->has_dev = true; 1049 address->dev = g_strdup(disk->name); 1050 get_single_disk_info(sdn.DeviceNumber, address, &local_err); 1051 if (local_err) { 1052 g_debug("failed to get disk info: %s", 1053 error_get_pretty(local_err)); 1054 error_free(local_err); 1055 qapi_free_GuestDiskAddress(address); 1056 address = NULL; 1057 } else { 1058 disk->address = address; 1059 disk->has_address = true; 1060 } 1061 1062 QAPI_LIST_PREPEND(ret, disk); 1063 } 1064 1065 SetupDiDestroyDeviceInfoList(dev_info); 1066 return ret; 1067 } 1068 1069 #else 1070 1071 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 1072 { 1073 return NULL; 1074 } 1075 1076 GuestDiskInfoList *qmp_guest_get_disks(Error **errp) 1077 { 1078 error_setg(errp, QERR_UNSUPPORTED); 1079 return NULL; 1080 } 1081 1082 #endif /* CONFIG_QGA_NTDDSCSI */ 1083 1084 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 1085 { 1086 DWORD info_size; 1087 char mnt, *mnt_point; 1088 wchar_t wfs_name[32]; 1089 char fs_name[32]; 1090 wchar_t vol_info[MAX_PATH + 1]; 1091 size_t len; 1092 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 1093 GuestFilesystemInfo *fs = NULL; 1094 HANDLE hLocalDiskHandle = NULL; 1095 1096 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 1097 if (GetLastError() != ERROR_MORE_DATA) { 1098 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1099 return NULL; 1100 } 1101 1102 mnt_point = g_malloc(info_size + 1); 1103 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 1104 &info_size)) { 1105 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 1106 goto free; 1107 } 1108 1109 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING, 1110 FILE_ATTRIBUTE_NORMAL | 1111 FILE_FLAG_BACKUP_SEMANTICS, NULL); 1112 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) { 1113 error_setg_win32(errp, GetLastError(), "failed to get handle for volume"); 1114 goto free; 1115 } 1116 1117 len = strlen(mnt_point); 1118 mnt_point[len] = '\\'; 1119 mnt_point[len + 1] = 0; 1120 1121 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info, 1122 sizeof(vol_info), NULL, NULL, NULL, 1123 (LPWSTR) & wfs_name, sizeof(wfs_name))) { 1124 if (GetLastError() != ERROR_NOT_READY) { 1125 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1126 } 1127 goto free; 1128 } 1129 1130 fs = g_malloc(sizeof(*fs)); 1131 fs->name = g_strdup(guid); 1132 fs->has_total_bytes = false; 1133 fs->has_used_bytes = false; 1134 if (len == 0) { 1135 fs->mountpoint = g_strdup("System Reserved"); 1136 } else { 1137 fs->mountpoint = g_strndup(mnt_point, len); 1138 if (GetDiskFreeSpaceEx(fs->mountpoint, 1139 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1140 (PULARGE_INTEGER) & i64TotalBytes, 1141 (PULARGE_INTEGER) & i64FreeBytes)) { 1142 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1143 fs->total_bytes = i64TotalBytes; 1144 fs->has_total_bytes = true; 1145 fs->has_used_bytes = true; 1146 } 1147 } 1148 wcstombs(fs_name, wfs_name, sizeof(wfs_name)); 1149 fs->type = g_strdup(fs_name); 1150 fs->disk = build_guest_disk_info(guid, errp); 1151 free: 1152 CloseHandle(hLocalDiskHandle); 1153 g_free(mnt_point); 1154 return fs; 1155 } 1156 1157 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1158 { 1159 HANDLE vol_h; 1160 GuestFilesystemInfoList *ret = NULL; 1161 char guid[256]; 1162 1163 vol_h = FindFirstVolume(guid, sizeof(guid)); 1164 if (vol_h == INVALID_HANDLE_VALUE) { 1165 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1166 return NULL; 1167 } 1168 1169 do { 1170 Error *local_err = NULL; 1171 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err); 1172 if (local_err) { 1173 g_debug("failed to get filesystem info, ignoring error: %s", 1174 error_get_pretty(local_err)); 1175 error_free(local_err); 1176 continue; 1177 } 1178 QAPI_LIST_PREPEND(ret, info); 1179 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1180 1181 if (GetLastError() != ERROR_NO_MORE_FILES) { 1182 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1183 } 1184 1185 FindVolumeClose(vol_h); 1186 return ret; 1187 } 1188 1189 /* 1190 * Return status of freeze/thaw 1191 */ 1192 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1193 { 1194 if (!vss_initialized()) { 1195 error_setg(errp, QERR_UNSUPPORTED); 1196 return 0; 1197 } 1198 1199 if (ga_is_frozen(ga_state)) { 1200 return GUEST_FSFREEZE_STATUS_FROZEN; 1201 } 1202 1203 return GUEST_FSFREEZE_STATUS_THAWED; 1204 } 1205 1206 /* 1207 * Freeze local file systems using Volume Shadow-copy Service. 1208 * The frozen state is limited for up to 10 seconds by VSS. 1209 */ 1210 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1211 { 1212 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1213 } 1214 1215 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1216 strList *mountpoints, 1217 Error **errp) 1218 { 1219 int i; 1220 Error *local_err = NULL; 1221 1222 if (!vss_initialized()) { 1223 error_setg(errp, QERR_UNSUPPORTED); 1224 return 0; 1225 } 1226 1227 slog("guest-fsfreeze called"); 1228 1229 /* cannot risk guest agent blocking itself on a write in this state */ 1230 ga_set_frozen(ga_state); 1231 1232 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1233 if (local_err) { 1234 error_propagate(errp, local_err); 1235 goto error; 1236 } 1237 1238 return i; 1239 1240 error: 1241 local_err = NULL; 1242 qmp_guest_fsfreeze_thaw(&local_err); 1243 if (local_err) { 1244 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1245 error_free(local_err); 1246 } 1247 return 0; 1248 } 1249 1250 /* 1251 * Thaw local file systems using Volume Shadow-copy Service. 1252 */ 1253 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1254 { 1255 int i; 1256 1257 if (!vss_initialized()) { 1258 error_setg(errp, QERR_UNSUPPORTED); 1259 return 0; 1260 } 1261 1262 qga_vss_fsfreeze(&i, false, NULL, errp); 1263 1264 ga_unset_frozen(ga_state); 1265 return i; 1266 } 1267 1268 static void guest_fsfreeze_cleanup(void) 1269 { 1270 Error *err = NULL; 1271 1272 if (!vss_initialized()) { 1273 return; 1274 } 1275 1276 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1277 qmp_guest_fsfreeze_thaw(&err); 1278 if (err) { 1279 slog("failed to clean up frozen filesystems: %s", 1280 error_get_pretty(err)); 1281 error_free(err); 1282 } 1283 } 1284 1285 vss_deinit(true); 1286 } 1287 1288 /* 1289 * Walk list of mounted file systems in the guest, and discard unused 1290 * areas. 1291 */ 1292 GuestFilesystemTrimResponse * 1293 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1294 { 1295 GuestFilesystemTrimResponse *resp; 1296 HANDLE handle; 1297 WCHAR guid[MAX_PATH] = L""; 1298 OSVERSIONINFO osvi; 1299 BOOL win8_or_later; 1300 1301 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1302 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1303 GetVersionEx(&osvi); 1304 win8_or_later = (osvi.dwMajorVersion > 6 || 1305 ((osvi.dwMajorVersion == 6) && 1306 (osvi.dwMinorVersion >= 2))); 1307 if (!win8_or_later) { 1308 error_setg(errp, "fstrim is only supported for Win8+"); 1309 return NULL; 1310 } 1311 1312 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1313 if (handle == INVALID_HANDLE_VALUE) { 1314 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1315 return NULL; 1316 } 1317 1318 resp = g_new0(GuestFilesystemTrimResponse, 1); 1319 1320 do { 1321 GuestFilesystemTrimResult *res; 1322 PWCHAR uc_path; 1323 DWORD char_count = 0; 1324 char *path, *out; 1325 GError *gerr = NULL; 1326 gchar *argv[4]; 1327 1328 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1329 1330 if (GetLastError() != ERROR_MORE_DATA) { 1331 continue; 1332 } 1333 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1334 continue; 1335 } 1336 1337 uc_path = g_malloc(sizeof(WCHAR) * char_count); 1338 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1339 &char_count) || !*uc_path) { 1340 /* strange, but this condition could be faced even with size == 2 */ 1341 g_free(uc_path); 1342 continue; 1343 } 1344 1345 res = g_new0(GuestFilesystemTrimResult, 1); 1346 1347 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1348 1349 g_free(uc_path); 1350 1351 if (!path) { 1352 res->has_error = true; 1353 res->error = g_strdup(gerr->message); 1354 g_error_free(gerr); 1355 break; 1356 } 1357 1358 res->path = path; 1359 1360 QAPI_LIST_PREPEND(resp->paths, res); 1361 1362 memset(argv, 0, sizeof(argv)); 1363 argv[0] = (gchar *)"defrag.exe"; 1364 argv[1] = (gchar *)"/L"; 1365 argv[2] = path; 1366 1367 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1368 &out /* stdout */, NULL /* stdin */, 1369 NULL, &gerr)) { 1370 res->has_error = true; 1371 res->error = g_strdup(gerr->message); 1372 g_error_free(gerr); 1373 } else { 1374 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1375 Error is reported in the output with something like 1376 (x89000020) etc code in the stdout */ 1377 1378 int i; 1379 gchar **lines = g_strsplit(out, "\r\n", 0); 1380 g_free(out); 1381 1382 for (i = 0; lines[i] != NULL; i++) { 1383 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1384 continue; 1385 } 1386 res->has_error = true; 1387 res->error = g_strdup(lines[i]); 1388 break; 1389 } 1390 g_strfreev(lines); 1391 } 1392 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1393 1394 FindVolumeClose(handle); 1395 return resp; 1396 } 1397 1398 typedef enum { 1399 GUEST_SUSPEND_MODE_DISK, 1400 GUEST_SUSPEND_MODE_RAM 1401 } GuestSuspendMode; 1402 1403 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1404 { 1405 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1406 1407 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1408 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1409 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1410 "failed to determine guest suspend capabilities"); 1411 return; 1412 } 1413 1414 switch (mode) { 1415 case GUEST_SUSPEND_MODE_DISK: 1416 if (!sys_pwr_caps.SystemS4) { 1417 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1418 "suspend-to-disk not supported by OS"); 1419 } 1420 break; 1421 case GUEST_SUSPEND_MODE_RAM: 1422 if (!sys_pwr_caps.SystemS3) { 1423 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1424 "suspend-to-ram not supported by OS"); 1425 } 1426 break; 1427 default: 1428 abort(); 1429 } 1430 } 1431 1432 static DWORD WINAPI do_suspend(LPVOID opaque) 1433 { 1434 GuestSuspendMode *mode = opaque; 1435 DWORD ret = 0; 1436 1437 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1438 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1439 slog("failed to suspend guest: %s", emsg); 1440 ret = -1; 1441 } 1442 g_free(mode); 1443 return ret; 1444 } 1445 1446 void qmp_guest_suspend_disk(Error **errp) 1447 { 1448 Error *local_err = NULL; 1449 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1450 1451 *mode = GUEST_SUSPEND_MODE_DISK; 1452 check_suspend_mode(*mode, &local_err); 1453 if (local_err) { 1454 goto out; 1455 } 1456 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1457 if (local_err) { 1458 goto out; 1459 } 1460 execute_async(do_suspend, mode, &local_err); 1461 1462 out: 1463 if (local_err) { 1464 error_propagate(errp, local_err); 1465 g_free(mode); 1466 } 1467 } 1468 1469 void qmp_guest_suspend_ram(Error **errp) 1470 { 1471 Error *local_err = NULL; 1472 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1473 1474 *mode = GUEST_SUSPEND_MODE_RAM; 1475 check_suspend_mode(*mode, &local_err); 1476 if (local_err) { 1477 goto out; 1478 } 1479 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1480 if (local_err) { 1481 goto out; 1482 } 1483 execute_async(do_suspend, mode, &local_err); 1484 1485 out: 1486 if (local_err) { 1487 error_propagate(errp, local_err); 1488 g_free(mode); 1489 } 1490 } 1491 1492 void qmp_guest_suspend_hybrid(Error **errp) 1493 { 1494 error_setg(errp, QERR_UNSUPPORTED); 1495 } 1496 1497 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1498 { 1499 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1500 ULONG adptr_addrs_len = 0; 1501 DWORD ret; 1502 1503 /* Call the first time to get the adptr_addrs_len. */ 1504 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1505 NULL, adptr_addrs, &adptr_addrs_len); 1506 1507 adptr_addrs = g_malloc(adptr_addrs_len); 1508 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1509 NULL, adptr_addrs, &adptr_addrs_len); 1510 if (ret != ERROR_SUCCESS) { 1511 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1512 g_free(adptr_addrs); 1513 adptr_addrs = NULL; 1514 } 1515 return adptr_addrs; 1516 } 1517 1518 static char *guest_wctomb_dup(WCHAR *wstr) 1519 { 1520 char *str; 1521 size_t str_size; 1522 1523 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1524 /* add 1 to str_size for NULL terminator */ 1525 str = g_malloc(str_size + 1); 1526 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1527 return str; 1528 } 1529 1530 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1531 Error **errp) 1532 { 1533 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1534 DWORD len; 1535 int ret; 1536 1537 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1538 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1539 len = sizeof(addr_str); 1540 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1541 ip_addr->Address.iSockaddrLength, 1542 NULL, 1543 addr_str, 1544 &len); 1545 if (ret != 0) { 1546 error_setg_win32(errp, WSAGetLastError(), 1547 "failed address presentation form conversion"); 1548 return NULL; 1549 } 1550 return g_strdup(addr_str); 1551 } 1552 return NULL; 1553 } 1554 1555 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1556 { 1557 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1558 * field to obtain the prefix. 1559 */ 1560 return ip_addr->OnLinkPrefixLength; 1561 } 1562 1563 #define INTERFACE_PATH_BUF_SZ 512 1564 1565 static DWORD get_interface_index(const char *guid) 1566 { 1567 ULONG index; 1568 DWORD status; 1569 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1570 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1571 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1572 status = GetAdapterIndex (wbuf, &index); 1573 if (status != NO_ERROR) { 1574 return (DWORD)~0; 1575 } else { 1576 return index; 1577 } 1578 } 1579 1580 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1581 1582 static int guest_get_network_stats(const char *name, 1583 GuestNetworkInterfaceStat *stats) 1584 { 1585 OSVERSIONINFO os_ver; 1586 1587 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1588 GetVersionEx(&os_ver); 1589 if (os_ver.dwMajorVersion >= 6) { 1590 MIB_IF_ROW2 a_mid_ifrow; 1591 GetIfEntry2Func getifentry2_ex; 1592 DWORD if_index = 0; 1593 HMODULE module = GetModuleHandle("iphlpapi"); 1594 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1595 1596 if (func == NULL) { 1597 return -1; 1598 } 1599 1600 getifentry2_ex = (GetIfEntry2Func)func; 1601 if_index = get_interface_index(name); 1602 if (if_index == (DWORD)~0) { 1603 return -1; 1604 } 1605 1606 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1607 a_mid_ifrow.InterfaceIndex = if_index; 1608 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1609 stats->rx_bytes = a_mid_ifrow.InOctets; 1610 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1611 stats->rx_errs = a_mid_ifrow.InErrors; 1612 stats->rx_dropped = a_mid_ifrow.InDiscards; 1613 stats->tx_bytes = a_mid_ifrow.OutOctets; 1614 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1615 stats->tx_errs = a_mid_ifrow.OutErrors; 1616 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1617 return 0; 1618 } 1619 } 1620 return -1; 1621 } 1622 1623 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1624 { 1625 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1626 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1627 GuestNetworkInterfaceList *head = NULL, **tail = &head; 1628 GuestIpAddressList *head_addr, **tail_addr; 1629 GuestNetworkInterface *info; 1630 GuestNetworkInterfaceStat *interface_stat = NULL; 1631 GuestIpAddress *address_item = NULL; 1632 unsigned char *mac_addr; 1633 char *addr_str; 1634 WORD wsa_version; 1635 WSADATA wsa_data; 1636 int ret; 1637 1638 adptr_addrs = guest_get_adapters_addresses(errp); 1639 if (adptr_addrs == NULL) { 1640 return NULL; 1641 } 1642 1643 /* Make WSA APIs available. */ 1644 wsa_version = MAKEWORD(2, 2); 1645 ret = WSAStartup(wsa_version, &wsa_data); 1646 if (ret != 0) { 1647 error_setg_win32(errp, ret, "failed socket startup"); 1648 goto out; 1649 } 1650 1651 for (addr = adptr_addrs; addr; addr = addr->Next) { 1652 info = g_malloc0(sizeof(*info)); 1653 1654 QAPI_LIST_APPEND(tail, info); 1655 1656 info->name = guest_wctomb_dup(addr->FriendlyName); 1657 1658 if (addr->PhysicalAddressLength != 0) { 1659 mac_addr = addr->PhysicalAddress; 1660 1661 info->hardware_address = 1662 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1663 (int) mac_addr[0], (int) mac_addr[1], 1664 (int) mac_addr[2], (int) mac_addr[3], 1665 (int) mac_addr[4], (int) mac_addr[5]); 1666 1667 info->has_hardware_address = true; 1668 } 1669 1670 head_addr = NULL; 1671 tail_addr = &head_addr; 1672 for (ip_addr = addr->FirstUnicastAddress; 1673 ip_addr; 1674 ip_addr = ip_addr->Next) { 1675 addr_str = guest_addr_to_str(ip_addr, errp); 1676 if (addr_str == NULL) { 1677 continue; 1678 } 1679 1680 address_item = g_malloc0(sizeof(*address_item)); 1681 1682 QAPI_LIST_APPEND(tail_addr, address_item); 1683 1684 address_item->ip_address = addr_str; 1685 address_item->prefix = guest_ip_prefix(ip_addr); 1686 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1687 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4; 1688 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1689 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6; 1690 } 1691 } 1692 if (head_addr) { 1693 info->has_ip_addresses = true; 1694 info->ip_addresses = head_addr; 1695 } 1696 if (!info->has_statistics) { 1697 interface_stat = g_malloc0(sizeof(*interface_stat)); 1698 if (guest_get_network_stats(addr->AdapterName, 1699 interface_stat) == -1) { 1700 info->has_statistics = false; 1701 g_free(interface_stat); 1702 } else { 1703 info->statistics = interface_stat; 1704 info->has_statistics = true; 1705 } 1706 } 1707 } 1708 WSACleanup(); 1709 out: 1710 g_free(adptr_addrs); 1711 return head; 1712 } 1713 1714 static int64_t filetime_to_ns(const FILETIME *tf) 1715 { 1716 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime) 1717 - W32_FT_OFFSET) * 100; 1718 } 1719 1720 int64_t qmp_guest_get_time(Error **errp) 1721 { 1722 SYSTEMTIME ts = {0}; 1723 FILETIME tf; 1724 1725 GetSystemTime(&ts); 1726 if (ts.wYear < 1601 || ts.wYear > 30827) { 1727 error_setg(errp, "Failed to get time"); 1728 return -1; 1729 } 1730 1731 if (!SystemTimeToFileTime(&ts, &tf)) { 1732 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError()); 1733 return -1; 1734 } 1735 1736 return filetime_to_ns(&tf); 1737 } 1738 1739 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1740 { 1741 Error *local_err = NULL; 1742 SYSTEMTIME ts; 1743 FILETIME tf; 1744 LONGLONG time; 1745 1746 if (!has_time) { 1747 /* Unfortunately, Windows libraries don't provide an easy way to access 1748 * RTC yet: 1749 * 1750 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1751 * 1752 * Instead, a workaround is to use the Windows win32tm command to 1753 * resync the time using the Windows Time service. 1754 */ 1755 LPVOID msg_buffer; 1756 DWORD ret_flags; 1757 1758 HRESULT hr = system("w32tm /resync /nowait"); 1759 1760 if (GetLastError() != 0) { 1761 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1762 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1763 } else if (hr != 0) { 1764 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1765 error_setg(errp, "Windows Time service not running on the " 1766 "guest"); 1767 } else { 1768 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1769 FORMAT_MESSAGE_FROM_SYSTEM | 1770 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1771 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1772 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1773 NULL)) { 1774 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1775 "t retrieve error message", hr); 1776 } else { 1777 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1778 (LPCTSTR)msg_buffer); 1779 LocalFree(msg_buffer); 1780 } 1781 } 1782 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1783 error_setg(errp, "No internet connection on guest, sync not " 1784 "accurate"); 1785 } 1786 return; 1787 } 1788 1789 /* Validate time passed by user. */ 1790 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1791 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1792 return; 1793 } 1794 1795 time = time_ns / 100 + W32_FT_OFFSET; 1796 1797 tf.dwLowDateTime = (DWORD) time; 1798 tf.dwHighDateTime = (DWORD) (time >> 32); 1799 1800 if (!FileTimeToSystemTime(&tf, &ts)) { 1801 error_setg(errp, "Failed to convert system time %d", 1802 (int)GetLastError()); 1803 return; 1804 } 1805 1806 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1807 if (local_err) { 1808 error_propagate(errp, local_err); 1809 return; 1810 } 1811 1812 if (!SetSystemTime(&ts)) { 1813 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1814 return; 1815 } 1816 } 1817 1818 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1819 { 1820 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1821 DWORD length; 1822 GuestLogicalProcessorList *head, **tail; 1823 Error *local_err = NULL; 1824 int64_t current; 1825 1826 ptr = pslpi = NULL; 1827 length = 0; 1828 current = 0; 1829 head = NULL; 1830 tail = &head; 1831 1832 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1833 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1834 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1835 ptr = pslpi = g_malloc0(length); 1836 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1837 error_setg(&local_err, "Failed to get processor information: %d", 1838 (int)GetLastError()); 1839 } 1840 } else { 1841 error_setg(&local_err, 1842 "Failed to get processor information buffer length: %d", 1843 (int)GetLastError()); 1844 } 1845 1846 while ((local_err == NULL) && (length > 0)) { 1847 if (pslpi->Relationship == RelationProcessorCore) { 1848 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1849 1850 while (cpu_bits > 0) { 1851 if (!!(cpu_bits & 1)) { 1852 GuestLogicalProcessor *vcpu; 1853 1854 vcpu = g_malloc0(sizeof *vcpu); 1855 vcpu->logical_id = current++; 1856 vcpu->online = true; 1857 vcpu->has_can_offline = true; 1858 1859 QAPI_LIST_APPEND(tail, vcpu); 1860 } 1861 cpu_bits >>= 1; 1862 } 1863 } 1864 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1865 pslpi++; /* next entry */ 1866 } 1867 1868 g_free(ptr); 1869 1870 if (local_err == NULL) { 1871 if (head != NULL) { 1872 return head; 1873 } 1874 /* there's no guest with zero VCPUs */ 1875 error_setg(&local_err, "Guest reported zero VCPUs"); 1876 } 1877 1878 qapi_free_GuestLogicalProcessorList(head); 1879 error_propagate(errp, local_err); 1880 return NULL; 1881 } 1882 1883 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1884 { 1885 error_setg(errp, QERR_UNSUPPORTED); 1886 return -1; 1887 } 1888 1889 static gchar * 1890 get_net_error_message(gint error) 1891 { 1892 HMODULE module = NULL; 1893 gchar *retval = NULL; 1894 wchar_t *msg = NULL; 1895 int flags; 1896 size_t nchars; 1897 1898 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1899 FORMAT_MESSAGE_IGNORE_INSERTS | 1900 FORMAT_MESSAGE_FROM_SYSTEM; 1901 1902 if (error >= NERR_BASE && error <= MAX_NERR) { 1903 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1904 1905 if (module != NULL) { 1906 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1907 } 1908 } 1909 1910 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1911 1912 if (msg != NULL) { 1913 nchars = wcslen(msg); 1914 1915 if (nchars >= 2 && 1916 msg[nchars - 1] == L'\n' && 1917 msg[nchars - 2] == L'\r') { 1918 msg[nchars - 2] = L'\0'; 1919 } 1920 1921 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1922 1923 LocalFree(msg); 1924 } 1925 1926 if (module != NULL) { 1927 FreeLibrary(module); 1928 } 1929 1930 return retval; 1931 } 1932 1933 void qmp_guest_set_user_password(const char *username, 1934 const char *password, 1935 bool crypted, 1936 Error **errp) 1937 { 1938 NET_API_STATUS nas; 1939 char *rawpasswddata = NULL; 1940 size_t rawpasswdlen; 1941 wchar_t *user = NULL, *wpass = NULL; 1942 USER_INFO_1003 pi1003 = { 0, }; 1943 GError *gerr = NULL; 1944 1945 if (crypted) { 1946 error_setg(errp, QERR_UNSUPPORTED); 1947 return; 1948 } 1949 1950 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1951 if (!rawpasswddata) { 1952 return; 1953 } 1954 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1955 rawpasswddata[rawpasswdlen] = '\0'; 1956 1957 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1958 if (!user) { 1959 goto done; 1960 } 1961 1962 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1963 if (!wpass) { 1964 goto done; 1965 } 1966 1967 pi1003.usri1003_password = wpass; 1968 nas = NetUserSetInfo(NULL, user, 1969 1003, (LPBYTE)&pi1003, 1970 NULL); 1971 1972 if (nas != NERR_Success) { 1973 gchar *msg = get_net_error_message(nas); 1974 error_setg(errp, "failed to set password: %s", msg); 1975 g_free(msg); 1976 } 1977 1978 done: 1979 if (gerr) { 1980 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1981 g_error_free(gerr); 1982 } 1983 g_free(user); 1984 g_free(wpass); 1985 g_free(rawpasswddata); 1986 } 1987 1988 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1989 { 1990 error_setg(errp, QERR_UNSUPPORTED); 1991 return NULL; 1992 } 1993 1994 GuestMemoryBlockResponseList * 1995 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1996 { 1997 error_setg(errp, QERR_UNSUPPORTED); 1998 return NULL; 1999 } 2000 2001 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 2002 { 2003 error_setg(errp, QERR_UNSUPPORTED); 2004 return NULL; 2005 } 2006 2007 /* add unsupported commands to the blacklist */ 2008 GList *ga_command_blacklist_init(GList *blacklist) 2009 { 2010 const char *list_unsupported[] = { 2011 "guest-suspend-hybrid", 2012 "guest-set-vcpus", 2013 "guest-get-memory-blocks", "guest-set-memory-blocks", 2014 "guest-get-memory-block-size", "guest-get-memory-block-info", 2015 NULL}; 2016 char **p = (char **)list_unsupported; 2017 2018 while (*p) { 2019 blacklist = g_list_append(blacklist, g_strdup(*p++)); 2020 } 2021 2022 if (!vss_init(true)) { 2023 g_debug("vss_init failed, vss commands are going to be disabled"); 2024 const char *list[] = { 2025 "guest-get-fsinfo", "guest-fsfreeze-status", 2026 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 2027 p = (char **)list; 2028 2029 while (*p) { 2030 blacklist = g_list_append(blacklist, g_strdup(*p++)); 2031 } 2032 } 2033 2034 return blacklist; 2035 } 2036 2037 /* register init/cleanup routines for stateful command groups */ 2038 void ga_command_state_init(GAState *s, GACommandState *cs) 2039 { 2040 if (!vss_initialized()) { 2041 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 2042 } 2043 } 2044 2045 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 2046 typedef struct _GA_WTSINFOA { 2047 WTS_CONNECTSTATE_CLASS State; 2048 DWORD SessionId; 2049 DWORD IncomingBytes; 2050 DWORD OutgoingBytes; 2051 DWORD IncomingFrames; 2052 DWORD OutgoingFrames; 2053 DWORD IncomingCompressedBytes; 2054 DWORD OutgoingCompressedBy; 2055 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 2056 CHAR Domain[DOMAIN_LENGTH]; 2057 CHAR UserName[USERNAME_LENGTH + 1]; 2058 LARGE_INTEGER ConnectTime; 2059 LARGE_INTEGER DisconnectTime; 2060 LARGE_INTEGER LastInputTime; 2061 LARGE_INTEGER LogonTime; 2062 LARGE_INTEGER CurrentTime; 2063 2064 } GA_WTSINFOA; 2065 2066 GuestUserList *qmp_guest_get_users(Error **errp) 2067 { 2068 #define QGA_NANOSECONDS 10000000 2069 2070 GHashTable *cache = NULL; 2071 GuestUserList *head = NULL, **tail = &head; 2072 2073 DWORD buffer_size = 0, count = 0, i = 0; 2074 GA_WTSINFOA *info = NULL; 2075 WTS_SESSION_INFOA *entries = NULL; 2076 GuestUser *user = NULL; 2077 gpointer value = NULL; 2078 INT64 login = 0; 2079 double login_time = 0; 2080 2081 cache = g_hash_table_new(g_str_hash, g_str_equal); 2082 2083 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 2084 for (i = 0; i < count; ++i) { 2085 buffer_size = 0; 2086 info = NULL; 2087 if (WTSQuerySessionInformationA( 2088 NULL, 2089 entries[i].SessionId, 2090 WTSSessionInfo, 2091 (LPSTR *)&info, 2092 &buffer_size 2093 )) { 2094 2095 if (strlen(info->UserName) == 0) { 2096 WTSFreeMemory(info); 2097 continue; 2098 } 2099 2100 login = info->LogonTime.QuadPart; 2101 login -= W32_FT_OFFSET; 2102 login_time = ((double)login) / QGA_NANOSECONDS; 2103 2104 if (g_hash_table_contains(cache, info->UserName)) { 2105 value = g_hash_table_lookup(cache, info->UserName); 2106 user = (GuestUser *)value; 2107 if (user->login_time > login_time) { 2108 user->login_time = login_time; 2109 } 2110 } else { 2111 user = g_new0(GuestUser, 1); 2112 2113 user->user = g_strdup(info->UserName); 2114 user->domain = g_strdup(info->Domain); 2115 user->has_domain = true; 2116 2117 user->login_time = login_time; 2118 2119 g_hash_table_add(cache, user->user); 2120 2121 QAPI_LIST_APPEND(tail, user); 2122 } 2123 } 2124 WTSFreeMemory(info); 2125 } 2126 WTSFreeMemory(entries); 2127 } 2128 g_hash_table_destroy(cache); 2129 return head; 2130 } 2131 2132 typedef struct _ga_matrix_lookup_t { 2133 int major; 2134 int minor; 2135 char const *version; 2136 char const *version_id; 2137 } ga_matrix_lookup_t; 2138 2139 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = { 2140 { 2141 /* Desktop editions */ 2142 { 5, 0, "Microsoft Windows 2000", "2000"}, 2143 { 5, 1, "Microsoft Windows XP", "xp"}, 2144 { 6, 0, "Microsoft Windows Vista", "vista"}, 2145 { 6, 1, "Microsoft Windows 7" "7"}, 2146 { 6, 2, "Microsoft Windows 8", "8"}, 2147 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2148 {10, 0, "Microsoft Windows 10", "10"}, 2149 { 0, 0, 0} 2150 },{ 2151 /* Server editions */ 2152 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2153 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2154 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2155 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2156 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2157 { 0, 0, 0}, 2158 { 0, 0, 0}, 2159 { 0, 0, 0} 2160 } 2161 }; 2162 2163 typedef struct _ga_win_10_0_server_t { 2164 int final_build; 2165 char const *version; 2166 char const *version_id; 2167 } ga_win_10_0_server_t; 2168 2169 static ga_win_10_0_server_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = { 2170 {14393, "Microsoft Windows Server 2016", "2016"}, 2171 {17763, "Microsoft Windows Server 2019", "2019"}, 2172 {20344, "Microsoft Windows Server 2022", "2022"}, 2173 {0, 0} 2174 }; 2175 2176 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2177 { 2178 typedef NTSTATUS(WINAPI *rtl_get_version_t)( 2179 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2180 2181 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2182 2183 HMODULE module = GetModuleHandle("ntdll"); 2184 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2185 if (fun == NULL) { 2186 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2187 "Failed to get address of RtlGetVersion"); 2188 return; 2189 } 2190 2191 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2192 rtl_get_version(info); 2193 return; 2194 } 2195 2196 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 2197 { 2198 DWORD major = os_version->dwMajorVersion; 2199 DWORD minor = os_version->dwMinorVersion; 2200 DWORD build = os_version->dwBuildNumber; 2201 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2202 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 2203 ga_win_10_0_server_t const *win_10_0_table = WIN_10_0_SERVER_VERSION_MATRIX; 2204 while (table->version != NULL) { 2205 if (major == 10 && minor == 0 && tbl_idx) { 2206 while (win_10_0_table->version != NULL) { 2207 if (build <= win_10_0_table->final_build) { 2208 if (id) { 2209 return g_strdup(win_10_0_table->version_id); 2210 } else { 2211 return g_strdup(win_10_0_table->version); 2212 } 2213 } 2214 win_10_0_table++; 2215 } 2216 } else if (major == table->major && minor == table->minor) { 2217 if (id) { 2218 return g_strdup(table->version_id); 2219 } else { 2220 return g_strdup(table->version); 2221 } 2222 } 2223 ++table; 2224 } 2225 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2226 major, minor); 2227 return g_strdup("N/A"); 2228 } 2229 2230 static char *ga_get_win_product_name(Error **errp) 2231 { 2232 HKEY key = NULL; 2233 DWORD size = 128; 2234 char *result = g_malloc0(size); 2235 LONG err = ERROR_SUCCESS; 2236 2237 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2238 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2239 &key); 2240 if (err != ERROR_SUCCESS) { 2241 error_setg_win32(errp, err, "failed to open registry key"); 2242 goto fail; 2243 } 2244 2245 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2246 (LPBYTE)result, &size); 2247 if (err == ERROR_MORE_DATA) { 2248 slog("ProductName longer than expected (%lu bytes), retrying", 2249 size); 2250 g_free(result); 2251 result = NULL; 2252 if (size > 0) { 2253 result = g_malloc0(size); 2254 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2255 (LPBYTE)result, &size); 2256 } 2257 } 2258 if (err != ERROR_SUCCESS) { 2259 error_setg_win32(errp, err, "failed to retrive ProductName"); 2260 goto fail; 2261 } 2262 2263 return result; 2264 2265 fail: 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->has_kernel_version = true; 2321 info->kernel_version = g_strdup_printf("%lu.%lu", 2322 os_version.dwMajorVersion, 2323 os_version.dwMinorVersion); 2324 info->has_kernel_release = true; 2325 info->kernel_release = g_strdup_printf("%lu", 2326 os_version.dwBuildNumber); 2327 info->has_machine = true; 2328 info->machine = ga_get_current_arch(); 2329 2330 info->has_id = true; 2331 info->id = g_strdup("mswindows"); 2332 info->has_name = true; 2333 info->name = g_strdup("Microsoft Windows"); 2334 info->has_pretty_name = true; 2335 info->pretty_name = product_name; 2336 info->has_version = true; 2337 info->version = ga_get_win_name(&os_version, false); 2338 info->has_version_id = true; 2339 info->version_id = ga_get_win_name(&os_version, true); 2340 info->has_variant = true; 2341 info->variant = g_strdup(server ? "server" : "client"); 2342 info->has_variant_id = true; 2343 info->variant_id = g_strdup(server ? "server" : "client"); 2344 2345 return info; 2346 } 2347 2348 /* 2349 * Safely get device property. Returned strings are using wide characters. 2350 * Caller is responsible for freeing the buffer. 2351 */ 2352 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName, 2353 PDEVPROPTYPE propType) 2354 { 2355 CONFIGRET cr; 2356 g_autofree LPBYTE buffer = NULL; 2357 ULONG buffer_len = 0; 2358 2359 /* First query for needed space */ 2360 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2361 buffer, &buffer_len, 0); 2362 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) { 2363 2364 slog("failed to get property size, error=0x%lx", cr); 2365 return NULL; 2366 } 2367 buffer = g_new0(BYTE, buffer_len + 1); 2368 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType, 2369 buffer, &buffer_len, 0); 2370 if (cr != CR_SUCCESS) { 2371 slog("failed to get device property, error=0x%lx", cr); 2372 return NULL; 2373 } 2374 return g_steal_pointer(&buffer); 2375 } 2376 2377 static GStrv ga_get_hardware_ids(DEVINST devInstance) 2378 { 2379 GArray *values = NULL; 2380 DEVPROPTYPE cm_type; 2381 LPWSTR id; 2382 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance, 2383 &qga_DEVPKEY_Device_HardwareIds, &cm_type); 2384 if (property == NULL) { 2385 slog("failed to get hardware IDs"); 2386 return NULL; 2387 } 2388 if (*property == '\0') { 2389 /* empty list */ 2390 return NULL; 2391 } 2392 values = g_array_new(TRUE, TRUE, sizeof(gchar *)); 2393 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) { 2394 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL); 2395 g_array_append_val(values, id8); 2396 } 2397 return (GStrv)g_array_free(values, FALSE); 2398 } 2399 2400 /* 2401 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices 2402 */ 2403 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)" 2404 2405 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) 2406 { 2407 GuestDeviceInfoList *head = NULL, **tail = &head; 2408 HDEVINFO dev_info = INVALID_HANDLE_VALUE; 2409 SP_DEVINFO_DATA dev_info_data; 2410 int i, j; 2411 GError *gerr = NULL; 2412 g_autoptr(GRegex) device_pci_re = NULL; 2413 DEVPROPTYPE cm_type; 2414 2415 device_pci_re = g_regex_new(DEVICE_PCI_RE, 2416 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0, 2417 &gerr); 2418 g_assert(device_pci_re != NULL); 2419 2420 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 2421 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES); 2422 if (dev_info == INVALID_HANDLE_VALUE) { 2423 error_setg(errp, "failed to get device tree"); 2424 return NULL; 2425 } 2426 2427 slog("enumerating devices"); 2428 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 2429 bool skip = true; 2430 g_autofree LPWSTR name = NULL; 2431 g_autofree LPFILETIME date = NULL; 2432 g_autofree LPWSTR version = NULL; 2433 g_auto(GStrv) hw_ids = NULL; 2434 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1); 2435 g_autofree char *vendor_id = NULL; 2436 g_autofree char *device_id = NULL; 2437 2438 name = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2439 &qga_DEVPKEY_NAME, &cm_type); 2440 if (name == NULL) { 2441 slog("failed to get device description"); 2442 continue; 2443 } 2444 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL); 2445 if (device->driver_name == NULL) { 2446 error_setg(errp, "conversion to utf8 failed (driver name)"); 2447 return NULL; 2448 } 2449 slog("querying device: %s", device->driver_name); 2450 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst); 2451 if (hw_ids == NULL) { 2452 continue; 2453 } 2454 for (j = 0; hw_ids[j] != NULL; j++) { 2455 GMatchInfo *match_info; 2456 GuestDeviceIdPCI *id; 2457 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) { 2458 continue; 2459 } 2460 skip = false; 2461 2462 vendor_id = g_match_info_fetch(match_info, 1); 2463 device_id = g_match_info_fetch(match_info, 2); 2464 2465 device->id = g_new0(GuestDeviceId, 1); 2466 device->has_id = true; 2467 device->id->type = GUEST_DEVICE_TYPE_PCI; 2468 id = &device->id->u.pci; 2469 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16); 2470 id->device_id = g_ascii_strtoull(device_id, NULL, 16); 2471 2472 g_match_info_free(match_info); 2473 break; 2474 } 2475 if (skip) { 2476 continue; 2477 } 2478 2479 version = (LPWSTR)cm_get_property(dev_info_data.DevInst, 2480 &qga_DEVPKEY_Device_DriverVersion, &cm_type); 2481 if (version == NULL) { 2482 slog("failed to get driver version"); 2483 continue; 2484 } 2485 device->driver_version = g_utf16_to_utf8(version, -1, NULL, 2486 NULL, NULL); 2487 if (device->driver_version == NULL) { 2488 error_setg(errp, "conversion to utf8 failed (driver version)"); 2489 return NULL; 2490 } 2491 device->has_driver_version = true; 2492 2493 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst, 2494 &qga_DEVPKEY_Device_DriverDate, &cm_type); 2495 if (date == NULL) { 2496 slog("failed to get driver date"); 2497 continue; 2498 } 2499 device->driver_date = filetime_to_ns(date); 2500 device->has_driver_date = true; 2501 2502 slog("driver: %s\ndriver version: %" PRId64 ",%s\n", 2503 device->driver_name, device->driver_date, 2504 device->driver_version); 2505 QAPI_LIST_APPEND(tail, g_steal_pointer(&device)); 2506 } 2507 2508 if (dev_info != INVALID_HANDLE_VALUE) { 2509 SetupDiDestroyDeviceInfoList(dev_info); 2510 } 2511 return head; 2512 } 2513