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 #include <setupapi.h> 25 #include <cfgmgr32.h> 26 #include <initguid.h> 27 #endif 28 #include <lm.h> 29 #include <wtsapi32.h> 30 #include <wininet.h> 31 32 #include "guest-agent-core.h" 33 #include "vss-win32.h" 34 #include "qga-qapi-commands.h" 35 #include "qapi/error.h" 36 #include "qapi/qmp/qerror.h" 37 #include "qemu/queue.h" 38 #include "qemu/host-utils.h" 39 #include "qemu/base64.h" 40 41 #ifndef SHTDN_REASON_FLAG_PLANNED 42 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 43 #endif 44 45 /* multiple of 100 nanoseconds elapsed between windows baseline 46 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 47 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 48 (365 * (1970 - 1601) + \ 49 (1970 - 1601) / 4 - 3)) 50 51 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 52 53 typedef struct GuestFileHandle { 54 int64_t id; 55 HANDLE fh; 56 QTAILQ_ENTRY(GuestFileHandle) next; 57 } GuestFileHandle; 58 59 static struct { 60 QTAILQ_HEAD(, GuestFileHandle) filehandles; 61 } guest_file_state = { 62 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 63 }; 64 65 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 66 67 typedef struct OpenFlags { 68 const char *forms; 69 DWORD desired_access; 70 DWORD creation_disposition; 71 } OpenFlags; 72 static OpenFlags guest_file_open_modes[] = { 73 {"r", GENERIC_READ, OPEN_EXISTING}, 74 {"rb", GENERIC_READ, OPEN_EXISTING}, 75 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 76 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 77 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 78 {"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 79 {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 80 {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 81 {"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 82 {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 83 {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 84 {"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 85 {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 86 {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS } 87 }; 88 89 #define debug_error(msg) do { \ 90 char *suffix = g_win32_error_message(GetLastError()); \ 91 g_debug("%s: %s", (msg), suffix); \ 92 g_free(suffix); \ 93 } while (0) 94 95 static OpenFlags *find_open_flag(const char *mode_str) 96 { 97 int mode; 98 Error **errp = NULL; 99 100 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 101 OpenFlags *flags = guest_file_open_modes + mode; 102 103 if (strcmp(flags->forms, mode_str) == 0) { 104 return flags; 105 } 106 } 107 108 error_setg(errp, "invalid file open mode '%s'", mode_str); 109 return NULL; 110 } 111 112 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 113 { 114 GuestFileHandle *gfh; 115 int64_t handle; 116 117 handle = ga_get_fd_handle(ga_state, errp); 118 if (handle < 0) { 119 return -1; 120 } 121 gfh = g_new0(GuestFileHandle, 1); 122 gfh->id = handle; 123 gfh->fh = fh; 124 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 125 126 return handle; 127 } 128 129 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 130 { 131 GuestFileHandle *gfh; 132 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 133 if (gfh->id == id) { 134 return gfh; 135 } 136 } 137 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 138 return NULL; 139 } 140 141 static void handle_set_nonblocking(HANDLE fh) 142 { 143 DWORD file_type, pipe_state; 144 file_type = GetFileType(fh); 145 if (file_type != FILE_TYPE_PIPE) { 146 return; 147 } 148 /* If file_type == FILE_TYPE_PIPE, according to MSDN 149 * the specified file is socket or named pipe */ 150 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 151 NULL, NULL, NULL, 0)) { 152 return; 153 } 154 /* The fd is named pipe fd */ 155 if (pipe_state & PIPE_NOWAIT) { 156 return; 157 } 158 159 pipe_state |= PIPE_NOWAIT; 160 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 161 } 162 163 int64_t qmp_guest_file_open(const char *path, bool has_mode, 164 const char *mode, Error **errp) 165 { 166 int64_t fd = -1; 167 HANDLE fh; 168 HANDLE templ_file = NULL; 169 DWORD share_mode = FILE_SHARE_READ; 170 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 171 LPSECURITY_ATTRIBUTES sa_attr = NULL; 172 OpenFlags *guest_flags; 173 GError *gerr = NULL; 174 wchar_t *w_path = NULL; 175 176 if (!has_mode) { 177 mode = "r"; 178 } 179 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 180 guest_flags = find_open_flag(mode); 181 if (guest_flags == NULL) { 182 error_setg(errp, "invalid file open mode"); 183 goto done; 184 } 185 186 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr); 187 if (!w_path) { 188 goto done; 189 } 190 191 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr, 192 guest_flags->creation_disposition, flags_and_attr, 193 templ_file); 194 if (fh == INVALID_HANDLE_VALUE) { 195 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 196 path); 197 goto done; 198 } 199 200 /* set fd non-blocking to avoid common use cases (like reading from a 201 * named pipe) from hanging the agent 202 */ 203 handle_set_nonblocking(fh); 204 205 fd = guest_file_handle_add(fh, errp); 206 if (fd < 0) { 207 CloseHandle(fh); 208 error_setg(errp, "failed to add handle to qmp handle table"); 209 goto done; 210 } 211 212 slog("guest-file-open, handle: % " PRId64, fd); 213 214 done: 215 if (gerr) { 216 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 217 g_error_free(gerr); 218 } 219 g_free(w_path); 220 return fd; 221 } 222 223 void qmp_guest_file_close(int64_t handle, Error **errp) 224 { 225 bool ret; 226 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 227 slog("guest-file-close called, handle: %" PRId64, handle); 228 if (gfh == NULL) { 229 return; 230 } 231 ret = CloseHandle(gfh->fh); 232 if (!ret) { 233 error_setg_win32(errp, GetLastError(), "failed close handle"); 234 return; 235 } 236 237 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 238 g_free(gfh); 239 } 240 241 static void acquire_privilege(const char *name, Error **errp) 242 { 243 HANDLE token = NULL; 244 TOKEN_PRIVILEGES priv; 245 Error *local_err = NULL; 246 247 if (OpenProcessToken(GetCurrentProcess(), 248 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token)) 249 { 250 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 251 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 252 "no luid for requested privilege"); 253 goto out; 254 } 255 256 priv.PrivilegeCount = 1; 257 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 258 259 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 260 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 261 "unable to acquire requested privilege"); 262 goto out; 263 } 264 265 } else { 266 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 267 "failed to open privilege token"); 268 } 269 270 out: 271 if (token) { 272 CloseHandle(token); 273 } 274 error_propagate(errp, local_err); 275 } 276 277 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 278 Error **errp) 279 { 280 Error *local_err = NULL; 281 282 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 283 if (!thread) { 284 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 285 "failed to dispatch asynchronous command"); 286 error_propagate(errp, local_err); 287 } 288 } 289 290 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 291 { 292 Error *local_err = NULL; 293 UINT shutdown_flag = EWX_FORCE; 294 295 slog("guest-shutdown called, mode: %s", mode); 296 297 if (!has_mode || strcmp(mode, "powerdown") == 0) { 298 shutdown_flag |= EWX_POWEROFF; 299 } else if (strcmp(mode, "halt") == 0) { 300 shutdown_flag |= EWX_SHUTDOWN; 301 } else if (strcmp(mode, "reboot") == 0) { 302 shutdown_flag |= EWX_REBOOT; 303 } else { 304 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 305 "halt|powerdown|reboot"); 306 return; 307 } 308 309 /* Request a shutdown privilege, but try to shut down the system 310 anyway. */ 311 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 312 if (local_err) { 313 error_propagate(errp, local_err); 314 return; 315 } 316 317 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 318 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 319 slog("guest-shutdown failed: %s", emsg); 320 error_setg_win32(errp, GetLastError(), "guest-shutdown failed"); 321 } 322 } 323 324 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, 325 int64_t count, Error **errp) 326 { 327 GuestFileRead *read_data = NULL; 328 guchar *buf; 329 HANDLE fh; 330 bool is_ok; 331 DWORD read_count; 332 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 333 334 if (!gfh) { 335 return NULL; 336 } 337 if (!has_count) { 338 count = QGA_READ_COUNT_DEFAULT; 339 } else if (count < 0 || count >= UINT32_MAX) { 340 error_setg(errp, "value '%" PRId64 341 "' is invalid for argument count", count); 342 return NULL; 343 } 344 345 fh = gfh->fh; 346 buf = g_malloc0(count+1); 347 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 348 if (!is_ok) { 349 error_setg_win32(errp, GetLastError(), "failed to read file"); 350 slog("guest-file-read failed, handle %" PRId64, handle); 351 } else { 352 buf[read_count] = 0; 353 read_data = g_new0(GuestFileRead, 1); 354 read_data->count = (size_t)read_count; 355 read_data->eof = read_count == 0; 356 357 if (read_count != 0) { 358 read_data->buf_b64 = g_base64_encode(buf, read_count); 359 } 360 } 361 g_free(buf); 362 363 return read_data; 364 } 365 366 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 367 bool has_count, int64_t count, 368 Error **errp) 369 { 370 GuestFileWrite *write_data = NULL; 371 guchar *buf; 372 gsize buf_len; 373 bool is_ok; 374 DWORD write_count; 375 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 376 HANDLE fh; 377 378 if (!gfh) { 379 return NULL; 380 } 381 fh = gfh->fh; 382 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 383 if (!buf) { 384 return NULL; 385 } 386 387 if (!has_count) { 388 count = buf_len; 389 } else if (count < 0 || count > buf_len) { 390 error_setg(errp, "value '%" PRId64 391 "' is invalid for argument count", count); 392 goto done; 393 } 394 395 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 396 if (!is_ok) { 397 error_setg_win32(errp, GetLastError(), "failed to write to file"); 398 slog("guest-file-write-failed, handle: %" PRId64, handle); 399 } else { 400 write_data = g_new0(GuestFileWrite, 1); 401 write_data->count = (size_t) write_count; 402 } 403 404 done: 405 g_free(buf); 406 return write_data; 407 } 408 409 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 410 GuestFileWhence *whence_code, 411 Error **errp) 412 { 413 GuestFileHandle *gfh; 414 GuestFileSeek *seek_data; 415 HANDLE fh; 416 LARGE_INTEGER new_pos, off_pos; 417 off_pos.QuadPart = offset; 418 BOOL res; 419 int whence; 420 Error *err = NULL; 421 422 gfh = guest_file_handle_find(handle, errp); 423 if (!gfh) { 424 return NULL; 425 } 426 427 /* We stupidly exposed 'whence':'int' in our qapi */ 428 whence = ga_parse_whence(whence_code, &err); 429 if (err) { 430 error_propagate(errp, err); 431 return NULL; 432 } 433 434 fh = gfh->fh; 435 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 436 if (!res) { 437 error_setg_win32(errp, GetLastError(), "failed to seek file"); 438 return NULL; 439 } 440 seek_data = g_new0(GuestFileSeek, 1); 441 seek_data->position = new_pos.QuadPart; 442 return seek_data; 443 } 444 445 void qmp_guest_file_flush(int64_t handle, Error **errp) 446 { 447 HANDLE fh; 448 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 449 if (!gfh) { 450 return; 451 } 452 453 fh = gfh->fh; 454 if (!FlushFileBuffers(fh)) { 455 error_setg_win32(errp, GetLastError(), "failed to flush file"); 456 } 457 } 458 459 #ifdef CONFIG_QGA_NTDDSCSI 460 461 static GuestDiskBusType win2qemu[] = { 462 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 463 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 464 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 465 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 466 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 467 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 468 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 469 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 470 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 471 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 472 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 473 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 474 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 475 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 476 #if (_WIN32_WINNT >= 0x0601) 477 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 478 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 479 #endif 480 }; 481 482 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 483 { 484 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) { 485 return GUEST_DISK_BUS_TYPE_UNKNOWN; 486 } 487 return win2qemu[(int)bus]; 488 } 489 490 DEFINE_GUID(GUID_DEVINTERFACE_DISK, 491 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2, 492 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 493 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT, 494 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82, 495 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 496 497 static GuestPCIAddress *get_pci_info(int number, Error **errp) 498 { 499 HDEVINFO dev_info; 500 SP_DEVINFO_DATA dev_info_data; 501 SP_DEVICE_INTERFACE_DATA dev_iface_data; 502 HANDLE dev_file; 503 int i; 504 GuestPCIAddress *pci = NULL; 505 bool partial_pci = false; 506 507 pci = g_malloc0(sizeof(*pci)); 508 pci->domain = -1; 509 pci->slot = -1; 510 pci->function = -1; 511 pci->bus = -1; 512 513 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0, 514 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 515 if (dev_info == INVALID_HANDLE_VALUE) { 516 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 517 goto out; 518 } 519 520 g_debug("enumerating devices"); 521 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 522 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 523 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 524 PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL; 525 STORAGE_DEVICE_NUMBER sdn; 526 char *parent_dev_id = NULL; 527 HDEVINFO parent_dev_info; 528 SP_DEVINFO_DATA parent_dev_info_data; 529 DWORD j; 530 DWORD size = 0; 531 532 g_debug("getting device path"); 533 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data, 534 &GUID_DEVINTERFACE_DISK, 0, 535 &dev_iface_data)) { 536 while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data, 537 pdev_iface_detail_data, 538 size, &size, 539 &dev_info_data)) { 540 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 541 pdev_iface_detail_data = g_malloc(size); 542 pdev_iface_detail_data->cbSize = 543 sizeof(*pdev_iface_detail_data); 544 } else { 545 error_setg_win32(errp, GetLastError(), 546 "failed to get device interfaces"); 547 goto free_dev_info; 548 } 549 } 550 551 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0, 552 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 553 NULL); 554 g_free(pdev_iface_detail_data); 555 556 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER, 557 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) { 558 CloseHandle(dev_file); 559 error_setg_win32(errp, GetLastError(), 560 "failed to get device slot number"); 561 goto free_dev_info; 562 } 563 564 CloseHandle(dev_file); 565 if (sdn.DeviceNumber != number) { 566 continue; 567 } 568 } else { 569 error_setg_win32(errp, GetLastError(), 570 "failed to get device interfaces"); 571 goto free_dev_info; 572 } 573 574 g_debug("found device slot %d. Getting storage controller", number); 575 { 576 CONFIGRET cr; 577 DEVINST dev_inst, parent_dev_inst; 578 ULONG dev_id_size = 0; 579 580 size = 0; 581 while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data, 582 parent_dev_id, size, &size)) { 583 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 584 parent_dev_id = g_malloc(size); 585 } else { 586 error_setg_win32(errp, GetLastError(), 587 "failed to get device instance ID"); 588 goto out; 589 } 590 } 591 592 /* 593 * CM API used here as opposed to 594 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...) 595 * which exports are only available in mingw-w64 6+ 596 */ 597 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0); 598 if (cr != CR_SUCCESS) { 599 g_error("CM_Locate_DevInst failed with code %lx", cr); 600 error_setg_win32(errp, GetLastError(), 601 "failed to get device instance"); 602 goto out; 603 } 604 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0); 605 if (cr != CR_SUCCESS) { 606 g_error("CM_Get_Parent failed with code %lx", cr); 607 error_setg_win32(errp, GetLastError(), 608 "failed to get parent device instance"); 609 goto out; 610 } 611 612 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0); 613 if (cr != CR_SUCCESS) { 614 g_error("CM_Get_Device_ID_Size failed with code %lx", cr); 615 error_setg_win32(errp, GetLastError(), 616 "failed to get parent device ID length"); 617 goto out; 618 } 619 620 ++dev_id_size; 621 if (dev_id_size > size) { 622 g_free(parent_dev_id); 623 parent_dev_id = g_malloc(dev_id_size); 624 } 625 626 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size, 627 0); 628 if (cr != CR_SUCCESS) { 629 g_error("CM_Get_Device_ID failed with code %lx", cr); 630 error_setg_win32(errp, GetLastError(), 631 "failed to get parent device ID"); 632 goto out; 633 } 634 } 635 636 g_debug("querying storage controller %s for PCI information", 637 parent_dev_id); 638 parent_dev_info = 639 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id, 640 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 641 g_free(parent_dev_id); 642 643 if (parent_dev_info == INVALID_HANDLE_VALUE) { 644 error_setg_win32(errp, GetLastError(), 645 "failed to get parent device"); 646 goto out; 647 } 648 649 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 650 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) { 651 error_setg_win32(errp, GetLastError(), 652 "failed to get parent device data"); 653 goto out; 654 } 655 656 for (j = 0; 657 SetupDiEnumDeviceInfo(parent_dev_info, j, &parent_dev_info_data); 658 j++) { 659 DWORD addr, bus, ui_slot, type; 660 int func, slot; 661 662 /* 663 * There is no need to allocate buffer in the next functions. The 664 * size is known and ULONG according to 665 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 666 */ 667 if (!SetupDiGetDeviceRegistryProperty( 668 parent_dev_info, &parent_dev_info_data, SPDRP_BUSNUMBER, 669 &type, (PBYTE)&bus, size, NULL)) { 670 debug_error("failed to get PCI bus"); 671 bus = -1; 672 partial_pci = true; 673 } 674 675 /* 676 * The function retrieves the device's address. This value will be 677 * transformed into device function and number 678 */ 679 if (!SetupDiGetDeviceRegistryProperty( 680 parent_dev_info, &parent_dev_info_data, SPDRP_ADDRESS, 681 &type, (PBYTE)&addr, size, NULL)) { 682 debug_error("failed to get PCI address"); 683 addr = -1; 684 partial_pci = true; 685 } 686 687 /* 688 * This call returns UINumber of DEVICE_CAPABILITIES structure. 689 * This number is typically a user-perceived slot number. 690 */ 691 if (!SetupDiGetDeviceRegistryProperty( 692 parent_dev_info, &parent_dev_info_data, SPDRP_UI_NUMBER, 693 &type, (PBYTE)&ui_slot, size, NULL)) { 694 debug_error("failed to get PCI slot"); 695 ui_slot = -1; 696 partial_pci = true; 697 } 698 699 /* 700 * SetupApi gives us the same information as driver with 701 * IoGetDeviceProperty. According to Microsoft: 702 * 703 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF) 704 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF) 705 * SPDRP_ADDRESS is propertyAddress, so we do the same. 706 * 707 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya 708 */ 709 if (partial_pci) { 710 pci->domain = -1; 711 pci->slot = -1; 712 pci->function = -1; 713 pci->bus = -1; 714 continue; 715 } else { 716 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF; 717 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF; 718 if ((int)ui_slot != slot) { 719 g_debug("mismatch with reported slot values: %d vs %d", 720 (int)ui_slot, slot); 721 } 722 pci->domain = 0; 723 pci->slot = (int)ui_slot; 724 pci->function = func; 725 pci->bus = (int)bus; 726 break; 727 } 728 } 729 SetupDiDestroyDeviceInfoList(parent_dev_info); 730 break; 731 } 732 733 free_dev_info: 734 SetupDiDestroyDeviceInfoList(dev_info); 735 out: 736 return pci; 737 } 738 739 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk, 740 Error **errp) 741 { 742 STORAGE_PROPERTY_QUERY query; 743 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 744 DWORD received; 745 ULONG size = sizeof(buf); 746 747 dev_desc = &buf; 748 query.PropertyId = StorageDeviceProperty; 749 query.QueryType = PropertyStandardQuery; 750 751 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 752 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 753 size, &received, NULL)) { 754 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 755 return; 756 } 757 disk->bus_type = find_bus_type(dev_desc->BusType); 758 g_debug("bus type %d", disk->bus_type); 759 760 /* Query once more. Now with long enough buffer. */ 761 size = dev_desc->Size; 762 dev_desc = g_malloc0(size); 763 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 764 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 765 size, &received, NULL)) { 766 error_setg_win32(errp, GetLastError(), "failed to get serial number"); 767 g_debug("failed to get serial number"); 768 goto out_free; 769 } 770 if (dev_desc->SerialNumberOffset > 0) { 771 const char *serial; 772 size_t len; 773 774 if (dev_desc->SerialNumberOffset >= received) { 775 error_setg(errp, "failed to get serial number: offset outside the buffer"); 776 g_debug("serial number offset outside the buffer"); 777 goto out_free; 778 } 779 serial = (char *)dev_desc + dev_desc->SerialNumberOffset; 780 len = received - dev_desc->SerialNumberOffset; 781 g_debug("serial number \"%s\"", serial); 782 if (*serial != 0) { 783 disk->serial = g_strndup(serial, len); 784 disk->has_serial = true; 785 } 786 } 787 out_free: 788 g_free(dev_desc); 789 790 return; 791 } 792 793 static void get_single_disk_info(int disk_number, 794 GuestDiskAddress *disk, Error **errp) 795 { 796 SCSI_ADDRESS addr, *scsi_ad; 797 DWORD len; 798 HANDLE disk_h; 799 Error *local_err = NULL; 800 801 scsi_ad = &addr; 802 803 g_debug("getting disk info for: %s", disk->dev); 804 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 805 0, NULL); 806 if (disk_h == INVALID_HANDLE_VALUE) { 807 error_setg_win32(errp, GetLastError(), "failed to open disk"); 808 return; 809 } 810 811 get_disk_properties(disk_h, disk, &local_err); 812 if (local_err) { 813 error_propagate(errp, local_err); 814 goto err_close; 815 } 816 817 g_debug("bus type %d", disk->bus_type); 818 /* always set pci_controller as required by schema. get_pci_info() should 819 * report -1 values for non-PCI buses rather than fail. fail the command 820 * if that doesn't hold since that suggests some other unexpected 821 * breakage 822 */ 823 disk->pci_controller = get_pci_info(disk_number, &local_err); 824 if (local_err) { 825 error_propagate(errp, local_err); 826 goto err_close; 827 } 828 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI 829 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE 830 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID 831 /* This bus type is not supported before Windows Server 2003 SP1 */ 832 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS 833 ) { 834 /* We are able to use the same ioctls for different bus types 835 * according to Microsoft docs 836 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 837 g_debug("getting SCSI info"); 838 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 839 sizeof(SCSI_ADDRESS), &len, NULL)) { 840 disk->unit = addr.Lun; 841 disk->target = addr.TargetId; 842 disk->bus = addr.PathId; 843 } 844 /* We do not set error in this case, because we still have enough 845 * information about volume. */ 846 } 847 848 err_close: 849 CloseHandle(disk_h); 850 return; 851 } 852 853 /* VSS provider works with volumes, thus there is no difference if 854 * the volume consist of spanned disks. Info about the first disk in the 855 * volume is returned for the spanned disk group (LVM) */ 856 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 857 { 858 Error *local_err = NULL; 859 GuestDiskAddressList *list = NULL, *cur_item = NULL; 860 GuestDiskAddress *disk = NULL; 861 int i; 862 HANDLE vol_h; 863 DWORD size; 864 PVOLUME_DISK_EXTENTS extents = NULL; 865 866 /* strip final backslash */ 867 char *name = g_strdup(guid); 868 if (g_str_has_suffix(name, "\\")) { 869 name[strlen(name) - 1] = 0; 870 } 871 872 g_debug("opening %s", name); 873 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 874 0, NULL); 875 if (vol_h == INVALID_HANDLE_VALUE) { 876 error_setg_win32(errp, GetLastError(), "failed to open volume"); 877 goto out; 878 } 879 880 /* Get list of extents */ 881 g_debug("getting disk extents"); 882 size = sizeof(VOLUME_DISK_EXTENTS); 883 extents = g_malloc0(size); 884 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 885 0, extents, size, &size, NULL)) { 886 DWORD last_err = GetLastError(); 887 if (last_err == ERROR_MORE_DATA) { 888 /* Try once more with big enough buffer */ 889 g_free(extents); 890 extents = g_malloc0(size); 891 if (!DeviceIoControl( 892 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL, 893 0, extents, size, NULL, NULL)) { 894 error_setg_win32(errp, GetLastError(), 895 "failed to get disk extents"); 896 goto out; 897 } 898 } else if (last_err == ERROR_INVALID_FUNCTION) { 899 /* Possibly CD-ROM or a shared drive. Try to pass the volume */ 900 g_debug("volume not on disk"); 901 disk = g_malloc0(sizeof(GuestDiskAddress)); 902 disk->has_dev = true; 903 disk->dev = g_strdup(name); 904 get_single_disk_info(0xffffffff, disk, &local_err); 905 if (local_err) { 906 g_debug("failed to get disk info, ignoring error: %s", 907 error_get_pretty(local_err)); 908 error_free(local_err); 909 goto out; 910 } 911 list = g_malloc0(sizeof(*list)); 912 list->value = disk; 913 disk = NULL; 914 list->next = NULL; 915 goto out; 916 } else { 917 error_setg_win32(errp, GetLastError(), 918 "failed to get disk extents"); 919 goto out; 920 } 921 } 922 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents); 923 924 /* Go through each extent */ 925 for (i = 0; i < extents->NumberOfDiskExtents; i++) { 926 disk = g_malloc0(sizeof(GuestDiskAddress)); 927 928 /* Disk numbers directly correspond to numbers used in UNCs 929 * 930 * See documentation for DISK_EXTENT: 931 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent 932 * 933 * See also Naming Files, Paths and Namespaces: 934 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces 935 */ 936 disk->has_dev = true; 937 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu", 938 extents->Extents[i].DiskNumber); 939 940 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err); 941 if (local_err) { 942 error_propagate(errp, local_err); 943 goto out; 944 } 945 cur_item = g_malloc0(sizeof(*list)); 946 cur_item->value = disk; 947 disk = NULL; 948 cur_item->next = list; 949 list = cur_item; 950 } 951 952 953 out: 954 if (vol_h != INVALID_HANDLE_VALUE) { 955 CloseHandle(vol_h); 956 } 957 qapi_free_GuestDiskAddress(disk); 958 g_free(extents); 959 g_free(name); 960 961 return list; 962 } 963 964 #else 965 966 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 967 { 968 return NULL; 969 } 970 971 #endif /* CONFIG_QGA_NTDDSCSI */ 972 973 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 974 { 975 DWORD info_size; 976 char mnt, *mnt_point; 977 char fs_name[32]; 978 char vol_info[MAX_PATH+1]; 979 size_t len; 980 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes; 981 GuestFilesystemInfo *fs = NULL; 982 983 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 984 if (GetLastError() != ERROR_MORE_DATA) { 985 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 986 return NULL; 987 } 988 989 mnt_point = g_malloc(info_size + 1); 990 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 991 &info_size)) { 992 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 993 goto free; 994 } 995 996 len = strlen(mnt_point); 997 mnt_point[len] = '\\'; 998 mnt_point[len+1] = 0; 999 if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL, 1000 NULL, (LPSTR)&fs_name, sizeof(fs_name))) { 1001 if (GetLastError() != ERROR_NOT_READY) { 1002 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 1003 } 1004 goto free; 1005 } 1006 1007 fs_name[sizeof(fs_name) - 1] = 0; 1008 fs = g_malloc(sizeof(*fs)); 1009 fs->name = g_strdup(guid); 1010 fs->has_total_bytes = false; 1011 fs->has_used_bytes = false; 1012 if (len == 0) { 1013 fs->mountpoint = g_strdup("System Reserved"); 1014 } else { 1015 fs->mountpoint = g_strndup(mnt_point, len); 1016 if (GetDiskFreeSpaceEx(fs->mountpoint, 1017 (PULARGE_INTEGER) & i64FreeBytesToCaller, 1018 (PULARGE_INTEGER) & i64TotalBytes, 1019 (PULARGE_INTEGER) & i64FreeBytes)) { 1020 fs->used_bytes = i64TotalBytes - i64FreeBytes; 1021 fs->total_bytes = i64TotalBytes; 1022 fs->has_total_bytes = true; 1023 fs->has_used_bytes = true; 1024 } 1025 } 1026 fs->type = g_strdup(fs_name); 1027 fs->disk = build_guest_disk_info(guid, errp); 1028 free: 1029 g_free(mnt_point); 1030 return fs; 1031 } 1032 1033 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 1034 { 1035 HANDLE vol_h; 1036 GuestFilesystemInfoList *new, *ret = NULL; 1037 char guid[256]; 1038 1039 vol_h = FindFirstVolume(guid, sizeof(guid)); 1040 if (vol_h == INVALID_HANDLE_VALUE) { 1041 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1042 return NULL; 1043 } 1044 1045 do { 1046 GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp); 1047 if (info == NULL) { 1048 continue; 1049 } 1050 new = g_malloc(sizeof(*ret)); 1051 new->value = info; 1052 new->next = ret; 1053 ret = new; 1054 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 1055 1056 if (GetLastError() != ERROR_NO_MORE_FILES) { 1057 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 1058 } 1059 1060 FindVolumeClose(vol_h); 1061 return ret; 1062 } 1063 1064 /* 1065 * Return status of freeze/thaw 1066 */ 1067 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 1068 { 1069 if (!vss_initialized()) { 1070 error_setg(errp, QERR_UNSUPPORTED); 1071 return 0; 1072 } 1073 1074 if (ga_is_frozen(ga_state)) { 1075 return GUEST_FSFREEZE_STATUS_FROZEN; 1076 } 1077 1078 return GUEST_FSFREEZE_STATUS_THAWED; 1079 } 1080 1081 /* 1082 * Freeze local file systems using Volume Shadow-copy Service. 1083 * The frozen state is limited for up to 10 seconds by VSS. 1084 */ 1085 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 1086 { 1087 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp); 1088 } 1089 1090 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 1091 strList *mountpoints, 1092 Error **errp) 1093 { 1094 int i; 1095 Error *local_err = NULL; 1096 1097 if (!vss_initialized()) { 1098 error_setg(errp, QERR_UNSUPPORTED); 1099 return 0; 1100 } 1101 1102 slog("guest-fsfreeze called"); 1103 1104 /* cannot risk guest agent blocking itself on a write in this state */ 1105 ga_set_frozen(ga_state); 1106 1107 qga_vss_fsfreeze(&i, true, mountpoints, &local_err); 1108 if (local_err) { 1109 error_propagate(errp, local_err); 1110 goto error; 1111 } 1112 1113 return i; 1114 1115 error: 1116 local_err = NULL; 1117 qmp_guest_fsfreeze_thaw(&local_err); 1118 if (local_err) { 1119 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 1120 error_free(local_err); 1121 } 1122 return 0; 1123 } 1124 1125 /* 1126 * Thaw local file systems using Volume Shadow-copy Service. 1127 */ 1128 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 1129 { 1130 int i; 1131 1132 if (!vss_initialized()) { 1133 error_setg(errp, QERR_UNSUPPORTED); 1134 return 0; 1135 } 1136 1137 qga_vss_fsfreeze(&i, false, NULL, errp); 1138 1139 ga_unset_frozen(ga_state); 1140 return i; 1141 } 1142 1143 static void guest_fsfreeze_cleanup(void) 1144 { 1145 Error *err = NULL; 1146 1147 if (!vss_initialized()) { 1148 return; 1149 } 1150 1151 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 1152 qmp_guest_fsfreeze_thaw(&err); 1153 if (err) { 1154 slog("failed to clean up frozen filesystems: %s", 1155 error_get_pretty(err)); 1156 error_free(err); 1157 } 1158 } 1159 1160 vss_deinit(true); 1161 } 1162 1163 /* 1164 * Walk list of mounted file systems in the guest, and discard unused 1165 * areas. 1166 */ 1167 GuestFilesystemTrimResponse * 1168 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 1169 { 1170 GuestFilesystemTrimResponse *resp; 1171 HANDLE handle; 1172 WCHAR guid[MAX_PATH] = L""; 1173 OSVERSIONINFO osvi; 1174 BOOL win8_or_later; 1175 1176 ZeroMemory(&osvi, sizeof(OSVERSIONINFO)); 1177 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1178 GetVersionEx(&osvi); 1179 win8_or_later = (osvi.dwMajorVersion > 6 || 1180 ((osvi.dwMajorVersion == 6) && 1181 (osvi.dwMinorVersion >= 2))); 1182 if (!win8_or_later) { 1183 error_setg(errp, "fstrim is only supported for Win8+"); 1184 return NULL; 1185 } 1186 1187 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 1188 if (handle == INVALID_HANDLE_VALUE) { 1189 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 1190 return NULL; 1191 } 1192 1193 resp = g_new0(GuestFilesystemTrimResponse, 1); 1194 1195 do { 1196 GuestFilesystemTrimResult *res; 1197 GuestFilesystemTrimResultList *list; 1198 PWCHAR uc_path; 1199 DWORD char_count = 0; 1200 char *path, *out; 1201 GError *gerr = NULL; 1202 gchar * argv[4]; 1203 1204 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 1205 1206 if (GetLastError() != ERROR_MORE_DATA) { 1207 continue; 1208 } 1209 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 1210 continue; 1211 } 1212 1213 uc_path = g_malloc(sizeof(WCHAR) * char_count); 1214 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 1215 &char_count) || !*uc_path) { 1216 /* strange, but this condition could be faced even with size == 2 */ 1217 g_free(uc_path); 1218 continue; 1219 } 1220 1221 res = g_new0(GuestFilesystemTrimResult, 1); 1222 1223 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 1224 1225 g_free(uc_path); 1226 1227 if (!path) { 1228 res->has_error = true; 1229 res->error = g_strdup(gerr->message); 1230 g_error_free(gerr); 1231 break; 1232 } 1233 1234 res->path = path; 1235 1236 list = g_new0(GuestFilesystemTrimResultList, 1); 1237 list->value = res; 1238 list->next = resp->paths; 1239 1240 resp->paths = list; 1241 1242 memset(argv, 0, sizeof(argv)); 1243 argv[0] = (gchar *)"defrag.exe"; 1244 argv[1] = (gchar *)"/L"; 1245 argv[2] = path; 1246 1247 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 1248 &out /* stdout */, NULL /* stdin */, 1249 NULL, &gerr)) { 1250 res->has_error = true; 1251 res->error = g_strdup(gerr->message); 1252 g_error_free(gerr); 1253 } else { 1254 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 1255 Error is reported in the output with something like 1256 (x89000020) etc code in the stdout */ 1257 1258 int i; 1259 gchar **lines = g_strsplit(out, "\r\n", 0); 1260 g_free(out); 1261 1262 for (i = 0; lines[i] != NULL; i++) { 1263 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 1264 continue; 1265 } 1266 res->has_error = true; 1267 res->error = g_strdup(lines[i]); 1268 break; 1269 } 1270 g_strfreev(lines); 1271 } 1272 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 1273 1274 FindVolumeClose(handle); 1275 return resp; 1276 } 1277 1278 typedef enum { 1279 GUEST_SUSPEND_MODE_DISK, 1280 GUEST_SUSPEND_MODE_RAM 1281 } GuestSuspendMode; 1282 1283 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 1284 { 1285 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 1286 Error *local_err = NULL; 1287 1288 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 1289 if (!GetPwrCapabilities(&sys_pwr_caps)) { 1290 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 1291 "failed to determine guest suspend capabilities"); 1292 goto out; 1293 } 1294 1295 switch (mode) { 1296 case GUEST_SUSPEND_MODE_DISK: 1297 if (!sys_pwr_caps.SystemS4) { 1298 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 1299 "suspend-to-disk not supported by OS"); 1300 } 1301 break; 1302 case GUEST_SUSPEND_MODE_RAM: 1303 if (!sys_pwr_caps.SystemS3) { 1304 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 1305 "suspend-to-ram not supported by OS"); 1306 } 1307 break; 1308 default: 1309 error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode", 1310 "GuestSuspendMode"); 1311 } 1312 1313 out: 1314 error_propagate(errp, local_err); 1315 } 1316 1317 static DWORD WINAPI do_suspend(LPVOID opaque) 1318 { 1319 GuestSuspendMode *mode = opaque; 1320 DWORD ret = 0; 1321 1322 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 1323 g_autofree gchar *emsg = g_win32_error_message(GetLastError()); 1324 slog("failed to suspend guest: %s", emsg); 1325 ret = -1; 1326 } 1327 g_free(mode); 1328 return ret; 1329 } 1330 1331 void qmp_guest_suspend_disk(Error **errp) 1332 { 1333 Error *local_err = NULL; 1334 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1335 1336 *mode = GUEST_SUSPEND_MODE_DISK; 1337 check_suspend_mode(*mode, &local_err); 1338 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1339 execute_async(do_suspend, mode, &local_err); 1340 1341 if (local_err) { 1342 error_propagate(errp, local_err); 1343 g_free(mode); 1344 } 1345 } 1346 1347 void qmp_guest_suspend_ram(Error **errp) 1348 { 1349 Error *local_err = NULL; 1350 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1351 1352 *mode = GUEST_SUSPEND_MODE_RAM; 1353 check_suspend_mode(*mode, &local_err); 1354 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1355 execute_async(do_suspend, mode, &local_err); 1356 1357 if (local_err) { 1358 error_propagate(errp, local_err); 1359 g_free(mode); 1360 } 1361 } 1362 1363 void qmp_guest_suspend_hybrid(Error **errp) 1364 { 1365 error_setg(errp, QERR_UNSUPPORTED); 1366 } 1367 1368 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1369 { 1370 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1371 ULONG adptr_addrs_len = 0; 1372 DWORD ret; 1373 1374 /* Call the first time to get the adptr_addrs_len. */ 1375 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1376 NULL, adptr_addrs, &adptr_addrs_len); 1377 1378 adptr_addrs = g_malloc(adptr_addrs_len); 1379 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1380 NULL, adptr_addrs, &adptr_addrs_len); 1381 if (ret != ERROR_SUCCESS) { 1382 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1383 g_free(adptr_addrs); 1384 adptr_addrs = NULL; 1385 } 1386 return adptr_addrs; 1387 } 1388 1389 static char *guest_wctomb_dup(WCHAR *wstr) 1390 { 1391 char *str; 1392 size_t str_size; 1393 1394 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL); 1395 /* add 1 to str_size for NULL terminator */ 1396 str = g_malloc(str_size + 1); 1397 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL); 1398 return str; 1399 } 1400 1401 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1402 Error **errp) 1403 { 1404 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1405 DWORD len; 1406 int ret; 1407 1408 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1409 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1410 len = sizeof(addr_str); 1411 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1412 ip_addr->Address.iSockaddrLength, 1413 NULL, 1414 addr_str, 1415 &len); 1416 if (ret != 0) { 1417 error_setg_win32(errp, WSAGetLastError(), 1418 "failed address presentation form conversion"); 1419 return NULL; 1420 } 1421 return g_strdup(addr_str); 1422 } 1423 return NULL; 1424 } 1425 1426 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1427 { 1428 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1429 * field to obtain the prefix. 1430 */ 1431 return ip_addr->OnLinkPrefixLength; 1432 } 1433 1434 #define INTERFACE_PATH_BUF_SZ 512 1435 1436 static DWORD get_interface_index(const char *guid) 1437 { 1438 ULONG index; 1439 DWORD status; 1440 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1441 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1442 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1443 status = GetAdapterIndex (wbuf, &index); 1444 if (status != NO_ERROR) { 1445 return (DWORD)~0; 1446 } else { 1447 return index; 1448 } 1449 } 1450 1451 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row); 1452 1453 static int guest_get_network_stats(const char *name, 1454 GuestNetworkInterfaceStat *stats) 1455 { 1456 OSVERSIONINFO os_ver; 1457 1458 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 1459 GetVersionEx(&os_ver); 1460 if (os_ver.dwMajorVersion >= 6) { 1461 MIB_IF_ROW2 a_mid_ifrow; 1462 GetIfEntry2Func getifentry2_ex; 1463 DWORD if_index = 0; 1464 HMODULE module = GetModuleHandle("iphlpapi"); 1465 PVOID func = GetProcAddress(module, "GetIfEntry2"); 1466 1467 if (func == NULL) { 1468 return -1; 1469 } 1470 1471 getifentry2_ex = (GetIfEntry2Func)func; 1472 if_index = get_interface_index(name); 1473 if (if_index == (DWORD)~0) { 1474 return -1; 1475 } 1476 1477 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1478 a_mid_ifrow.InterfaceIndex = if_index; 1479 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) { 1480 stats->rx_bytes = a_mid_ifrow.InOctets; 1481 stats->rx_packets = a_mid_ifrow.InUcastPkts; 1482 stats->rx_errs = a_mid_ifrow.InErrors; 1483 stats->rx_dropped = a_mid_ifrow.InDiscards; 1484 stats->tx_bytes = a_mid_ifrow.OutOctets; 1485 stats->tx_packets = a_mid_ifrow.OutUcastPkts; 1486 stats->tx_errs = a_mid_ifrow.OutErrors; 1487 stats->tx_dropped = a_mid_ifrow.OutDiscards; 1488 return 0; 1489 } 1490 } 1491 return -1; 1492 } 1493 1494 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1495 { 1496 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1497 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1498 GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; 1499 GuestIpAddressList *head_addr, *cur_addr; 1500 GuestNetworkInterfaceList *info; 1501 GuestNetworkInterfaceStat *interface_stat = NULL; 1502 GuestIpAddressList *address_item = NULL; 1503 unsigned char *mac_addr; 1504 char *addr_str; 1505 WORD wsa_version; 1506 WSADATA wsa_data; 1507 int ret; 1508 1509 adptr_addrs = guest_get_adapters_addresses(errp); 1510 if (adptr_addrs == NULL) { 1511 return NULL; 1512 } 1513 1514 /* Make WSA APIs available. */ 1515 wsa_version = MAKEWORD(2, 2); 1516 ret = WSAStartup(wsa_version, &wsa_data); 1517 if (ret != 0) { 1518 error_setg_win32(errp, ret, "failed socket startup"); 1519 goto out; 1520 } 1521 1522 for (addr = adptr_addrs; addr; addr = addr->Next) { 1523 info = g_malloc0(sizeof(*info)); 1524 1525 if (cur_item == NULL) { 1526 head = cur_item = info; 1527 } else { 1528 cur_item->next = info; 1529 cur_item = info; 1530 } 1531 1532 info->value = g_malloc0(sizeof(*info->value)); 1533 info->value->name = guest_wctomb_dup(addr->FriendlyName); 1534 1535 if (addr->PhysicalAddressLength != 0) { 1536 mac_addr = addr->PhysicalAddress; 1537 1538 info->value->hardware_address = 1539 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1540 (int) mac_addr[0], (int) mac_addr[1], 1541 (int) mac_addr[2], (int) mac_addr[3], 1542 (int) mac_addr[4], (int) mac_addr[5]); 1543 1544 info->value->has_hardware_address = true; 1545 } 1546 1547 head_addr = NULL; 1548 cur_addr = NULL; 1549 for (ip_addr = addr->FirstUnicastAddress; 1550 ip_addr; 1551 ip_addr = ip_addr->Next) { 1552 addr_str = guest_addr_to_str(ip_addr, errp); 1553 if (addr_str == NULL) { 1554 continue; 1555 } 1556 1557 address_item = g_malloc0(sizeof(*address_item)); 1558 1559 if (!cur_addr) { 1560 head_addr = cur_addr = address_item; 1561 } else { 1562 cur_addr->next = address_item; 1563 cur_addr = address_item; 1564 } 1565 1566 address_item->value = g_malloc0(sizeof(*address_item->value)); 1567 address_item->value->ip_address = addr_str; 1568 address_item->value->prefix = guest_ip_prefix(ip_addr); 1569 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1570 address_item->value->ip_address_type = 1571 GUEST_IP_ADDRESS_TYPE_IPV4; 1572 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1573 address_item->value->ip_address_type = 1574 GUEST_IP_ADDRESS_TYPE_IPV6; 1575 } 1576 } 1577 if (head_addr) { 1578 info->value->has_ip_addresses = true; 1579 info->value->ip_addresses = head_addr; 1580 } 1581 if (!info->value->has_statistics) { 1582 interface_stat = g_malloc0(sizeof(*interface_stat)); 1583 if (guest_get_network_stats(addr->AdapterName, 1584 interface_stat) == -1) { 1585 info->value->has_statistics = false; 1586 g_free(interface_stat); 1587 } else { 1588 info->value->statistics = interface_stat; 1589 info->value->has_statistics = true; 1590 } 1591 } 1592 } 1593 WSACleanup(); 1594 out: 1595 g_free(adptr_addrs); 1596 return head; 1597 } 1598 1599 int64_t qmp_guest_get_time(Error **errp) 1600 { 1601 SYSTEMTIME ts = {0}; 1602 FILETIME tf; 1603 1604 GetSystemTime(&ts); 1605 if (ts.wYear < 1601 || ts.wYear > 30827) { 1606 error_setg(errp, "Failed to get time"); 1607 return -1; 1608 } 1609 1610 if (!SystemTimeToFileTime(&ts, &tf)) { 1611 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError()); 1612 return -1; 1613 } 1614 1615 return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) 1616 - W32_FT_OFFSET) * 100; 1617 } 1618 1619 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1620 { 1621 Error *local_err = NULL; 1622 SYSTEMTIME ts; 1623 FILETIME tf; 1624 LONGLONG time; 1625 1626 if (!has_time) { 1627 /* Unfortunately, Windows libraries don't provide an easy way to access 1628 * RTC yet: 1629 * 1630 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1631 * 1632 * Instead, a workaround is to use the Windows win32tm command to 1633 * resync the time using the Windows Time service. 1634 */ 1635 LPVOID msg_buffer; 1636 DWORD ret_flags; 1637 1638 HRESULT hr = system("w32tm /resync /nowait"); 1639 1640 if (GetLastError() != 0) { 1641 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1642 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1643 } else if (hr != 0) { 1644 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1645 error_setg(errp, "Windows Time service not running on the " 1646 "guest"); 1647 } else { 1648 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1649 FORMAT_MESSAGE_FROM_SYSTEM | 1650 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1651 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1652 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1653 NULL)) { 1654 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1655 "t retrieve error message", hr); 1656 } else { 1657 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1658 (LPCTSTR)msg_buffer); 1659 LocalFree(msg_buffer); 1660 } 1661 } 1662 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1663 error_setg(errp, "No internet connection on guest, sync not " 1664 "accurate"); 1665 } 1666 return; 1667 } 1668 1669 /* Validate time passed by user. */ 1670 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1671 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1672 return; 1673 } 1674 1675 time = time_ns / 100 + W32_FT_OFFSET; 1676 1677 tf.dwLowDateTime = (DWORD) time; 1678 tf.dwHighDateTime = (DWORD) (time >> 32); 1679 1680 if (!FileTimeToSystemTime(&tf, &ts)) { 1681 error_setg(errp, "Failed to convert system time %d", 1682 (int)GetLastError()); 1683 return; 1684 } 1685 1686 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1687 if (local_err) { 1688 error_propagate(errp, local_err); 1689 return; 1690 } 1691 1692 if (!SetSystemTime(&ts)) { 1693 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1694 return; 1695 } 1696 } 1697 1698 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1699 { 1700 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1701 DWORD length; 1702 GuestLogicalProcessorList *head, **link; 1703 Error *local_err = NULL; 1704 int64_t current; 1705 1706 ptr = pslpi = NULL; 1707 length = 0; 1708 current = 0; 1709 head = NULL; 1710 link = &head; 1711 1712 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1713 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1714 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1715 ptr = pslpi = g_malloc0(length); 1716 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1717 error_setg(&local_err, "Failed to get processor information: %d", 1718 (int)GetLastError()); 1719 } 1720 } else { 1721 error_setg(&local_err, 1722 "Failed to get processor information buffer length: %d", 1723 (int)GetLastError()); 1724 } 1725 1726 while ((local_err == NULL) && (length > 0)) { 1727 if (pslpi->Relationship == RelationProcessorCore) { 1728 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1729 1730 while (cpu_bits > 0) { 1731 if (!!(cpu_bits & 1)) { 1732 GuestLogicalProcessor *vcpu; 1733 GuestLogicalProcessorList *entry; 1734 1735 vcpu = g_malloc0(sizeof *vcpu); 1736 vcpu->logical_id = current++; 1737 vcpu->online = true; 1738 vcpu->has_can_offline = true; 1739 1740 entry = g_malloc0(sizeof *entry); 1741 entry->value = vcpu; 1742 1743 *link = entry; 1744 link = &entry->next; 1745 } 1746 cpu_bits >>= 1; 1747 } 1748 } 1749 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1750 pslpi++; /* next entry */ 1751 } 1752 1753 g_free(ptr); 1754 1755 if (local_err == NULL) { 1756 if (head != NULL) { 1757 return head; 1758 } 1759 /* there's no guest with zero VCPUs */ 1760 error_setg(&local_err, "Guest reported zero VCPUs"); 1761 } 1762 1763 qapi_free_GuestLogicalProcessorList(head); 1764 error_propagate(errp, local_err); 1765 return NULL; 1766 } 1767 1768 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1769 { 1770 error_setg(errp, QERR_UNSUPPORTED); 1771 return -1; 1772 } 1773 1774 static gchar * 1775 get_net_error_message(gint error) 1776 { 1777 HMODULE module = NULL; 1778 gchar *retval = NULL; 1779 wchar_t *msg = NULL; 1780 int flags; 1781 size_t nchars; 1782 1783 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1784 FORMAT_MESSAGE_IGNORE_INSERTS | 1785 FORMAT_MESSAGE_FROM_SYSTEM; 1786 1787 if (error >= NERR_BASE && error <= MAX_NERR) { 1788 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1789 1790 if (module != NULL) { 1791 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1792 } 1793 } 1794 1795 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1796 1797 if (msg != NULL) { 1798 nchars = wcslen(msg); 1799 1800 if (nchars >= 2 && 1801 msg[nchars - 1] == L'\n' && 1802 msg[nchars - 2] == L'\r') { 1803 msg[nchars - 2] = L'\0'; 1804 } 1805 1806 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1807 1808 LocalFree(msg); 1809 } 1810 1811 if (module != NULL) { 1812 FreeLibrary(module); 1813 } 1814 1815 return retval; 1816 } 1817 1818 void qmp_guest_set_user_password(const char *username, 1819 const char *password, 1820 bool crypted, 1821 Error **errp) 1822 { 1823 NET_API_STATUS nas; 1824 char *rawpasswddata = NULL; 1825 size_t rawpasswdlen; 1826 wchar_t *user = NULL, *wpass = NULL; 1827 USER_INFO_1003 pi1003 = { 0, }; 1828 GError *gerr = NULL; 1829 1830 if (crypted) { 1831 error_setg(errp, QERR_UNSUPPORTED); 1832 return; 1833 } 1834 1835 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1836 if (!rawpasswddata) { 1837 return; 1838 } 1839 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1840 rawpasswddata[rawpasswdlen] = '\0'; 1841 1842 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1843 if (!user) { 1844 goto done; 1845 } 1846 1847 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1848 if (!wpass) { 1849 goto done; 1850 } 1851 1852 pi1003.usri1003_password = wpass; 1853 nas = NetUserSetInfo(NULL, user, 1854 1003, (LPBYTE)&pi1003, 1855 NULL); 1856 1857 if (nas != NERR_Success) { 1858 gchar *msg = get_net_error_message(nas); 1859 error_setg(errp, "failed to set password: %s", msg); 1860 g_free(msg); 1861 } 1862 1863 done: 1864 if (gerr) { 1865 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1866 g_error_free(gerr); 1867 } 1868 g_free(user); 1869 g_free(wpass); 1870 g_free(rawpasswddata); 1871 } 1872 1873 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1874 { 1875 error_setg(errp, QERR_UNSUPPORTED); 1876 return NULL; 1877 } 1878 1879 GuestMemoryBlockResponseList * 1880 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1881 { 1882 error_setg(errp, QERR_UNSUPPORTED); 1883 return NULL; 1884 } 1885 1886 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1887 { 1888 error_setg(errp, QERR_UNSUPPORTED); 1889 return NULL; 1890 } 1891 1892 /* add unsupported commands to the blacklist */ 1893 GList *ga_command_blacklist_init(GList *blacklist) 1894 { 1895 const char *list_unsupported[] = { 1896 "guest-suspend-hybrid", 1897 "guest-set-vcpus", 1898 "guest-get-memory-blocks", "guest-set-memory-blocks", 1899 "guest-get-memory-block-size", "guest-get-memory-block-info", 1900 NULL}; 1901 char **p = (char **)list_unsupported; 1902 1903 while (*p) { 1904 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1905 } 1906 1907 if (!vss_init(true)) { 1908 g_debug("vss_init failed, vss commands are going to be disabled"); 1909 const char *list[] = { 1910 "guest-get-fsinfo", "guest-fsfreeze-status", 1911 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 1912 p = (char **)list; 1913 1914 while (*p) { 1915 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1916 } 1917 } 1918 1919 return blacklist; 1920 } 1921 1922 /* register init/cleanup routines for stateful command groups */ 1923 void ga_command_state_init(GAState *s, GACommandState *cs) 1924 { 1925 if (!vss_initialized()) { 1926 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 1927 } 1928 } 1929 1930 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 1931 typedef struct _GA_WTSINFOA { 1932 WTS_CONNECTSTATE_CLASS State; 1933 DWORD SessionId; 1934 DWORD IncomingBytes; 1935 DWORD OutgoingBytes; 1936 DWORD IncomingFrames; 1937 DWORD OutgoingFrames; 1938 DWORD IncomingCompressedBytes; 1939 DWORD OutgoingCompressedBy; 1940 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 1941 CHAR Domain[DOMAIN_LENGTH]; 1942 CHAR UserName[USERNAME_LENGTH + 1]; 1943 LARGE_INTEGER ConnectTime; 1944 LARGE_INTEGER DisconnectTime; 1945 LARGE_INTEGER LastInputTime; 1946 LARGE_INTEGER LogonTime; 1947 LARGE_INTEGER CurrentTime; 1948 1949 } GA_WTSINFOA; 1950 1951 GuestUserList *qmp_guest_get_users(Error **errp) 1952 { 1953 #define QGA_NANOSECONDS 10000000 1954 1955 GHashTable *cache = NULL; 1956 GuestUserList *head = NULL, *cur_item = NULL; 1957 1958 DWORD buffer_size = 0, count = 0, i = 0; 1959 GA_WTSINFOA *info = NULL; 1960 WTS_SESSION_INFOA *entries = NULL; 1961 GuestUserList *item = NULL; 1962 GuestUser *user = NULL; 1963 gpointer value = NULL; 1964 INT64 login = 0; 1965 double login_time = 0; 1966 1967 cache = g_hash_table_new(g_str_hash, g_str_equal); 1968 1969 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 1970 for (i = 0; i < count; ++i) { 1971 buffer_size = 0; 1972 info = NULL; 1973 if (WTSQuerySessionInformationA( 1974 NULL, 1975 entries[i].SessionId, 1976 WTSSessionInfo, 1977 (LPSTR *)&info, 1978 &buffer_size 1979 )) { 1980 1981 if (strlen(info->UserName) == 0) { 1982 WTSFreeMemory(info); 1983 continue; 1984 } 1985 1986 login = info->LogonTime.QuadPart; 1987 login -= W32_FT_OFFSET; 1988 login_time = ((double)login) / QGA_NANOSECONDS; 1989 1990 if (g_hash_table_contains(cache, info->UserName)) { 1991 value = g_hash_table_lookup(cache, info->UserName); 1992 user = (GuestUser *)value; 1993 if (user->login_time > login_time) { 1994 user->login_time = login_time; 1995 } 1996 } else { 1997 item = g_new0(GuestUserList, 1); 1998 item->value = g_new0(GuestUser, 1); 1999 2000 item->value->user = g_strdup(info->UserName); 2001 item->value->domain = g_strdup(info->Domain); 2002 item->value->has_domain = true; 2003 2004 item->value->login_time = login_time; 2005 2006 g_hash_table_add(cache, item->value->user); 2007 2008 if (!cur_item) { 2009 head = cur_item = item; 2010 } else { 2011 cur_item->next = item; 2012 cur_item = item; 2013 } 2014 } 2015 } 2016 WTSFreeMemory(info); 2017 } 2018 WTSFreeMemory(entries); 2019 } 2020 g_hash_table_destroy(cache); 2021 return head; 2022 } 2023 2024 typedef struct _ga_matrix_lookup_t { 2025 int major; 2026 int minor; 2027 char const *version; 2028 char const *version_id; 2029 } ga_matrix_lookup_t; 2030 2031 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = { 2032 { 2033 /* Desktop editions */ 2034 { 5, 0, "Microsoft Windows 2000", "2000"}, 2035 { 5, 1, "Microsoft Windows XP", "xp"}, 2036 { 6, 0, "Microsoft Windows Vista", "vista"}, 2037 { 6, 1, "Microsoft Windows 7" "7"}, 2038 { 6, 2, "Microsoft Windows 8", "8"}, 2039 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 2040 {10, 0, "Microsoft Windows 10", "10"}, 2041 { 0, 0, 0} 2042 },{ 2043 /* Server editions */ 2044 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 2045 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 2046 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 2047 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 2048 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 2049 { 0, 0, 0}, 2050 { 0, 0, 0}, 2051 { 0, 0, 0} 2052 } 2053 }; 2054 2055 typedef struct _ga_win_10_0_server_t { 2056 int final_build; 2057 char const *version; 2058 char const *version_id; 2059 } ga_win_10_0_server_t; 2060 2061 static ga_win_10_0_server_t const WIN_10_0_SERVER_VERSION_MATRIX[3] = { 2062 {14393, "Microsoft Windows Server 2016", "2016"}, 2063 {17763, "Microsoft Windows Server 2019", "2019"}, 2064 {0, 0} 2065 }; 2066 2067 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 2068 { 2069 typedef NTSTATUS(WINAPI * rtl_get_version_t)( 2070 RTL_OSVERSIONINFOEXW *os_version_info_ex); 2071 2072 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 2073 2074 HMODULE module = GetModuleHandle("ntdll"); 2075 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 2076 if (fun == NULL) { 2077 error_setg(errp, QERR_QGA_COMMAND_FAILED, 2078 "Failed to get address of RtlGetVersion"); 2079 return; 2080 } 2081 2082 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 2083 rtl_get_version(info); 2084 return; 2085 } 2086 2087 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 2088 { 2089 DWORD major = os_version->dwMajorVersion; 2090 DWORD minor = os_version->dwMinorVersion; 2091 DWORD build = os_version->dwBuildNumber; 2092 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 2093 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 2094 ga_win_10_0_server_t const *win_10_0_table = WIN_10_0_SERVER_VERSION_MATRIX; 2095 while (table->version != NULL) { 2096 if (major == 10 && minor == 0 && tbl_idx) { 2097 while (win_10_0_table->version != NULL) { 2098 if (build <= win_10_0_table->final_build) { 2099 if (id) { 2100 return g_strdup(win_10_0_table->version_id); 2101 } else { 2102 return g_strdup(win_10_0_table->version); 2103 } 2104 } 2105 win_10_0_table++; 2106 } 2107 } else if (major == table->major && minor == table->minor) { 2108 if (id) { 2109 return g_strdup(table->version_id); 2110 } else { 2111 return g_strdup(table->version); 2112 } 2113 } 2114 ++table; 2115 } 2116 slog("failed to lookup Windows version: major=%lu, minor=%lu", 2117 major, minor); 2118 return g_strdup("N/A"); 2119 } 2120 2121 static char *ga_get_win_product_name(Error **errp) 2122 { 2123 HKEY key = NULL; 2124 DWORD size = 128; 2125 char *result = g_malloc0(size); 2126 LONG err = ERROR_SUCCESS; 2127 2128 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 2129 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 2130 &key); 2131 if (err != ERROR_SUCCESS) { 2132 error_setg_win32(errp, err, "failed to open registry key"); 2133 goto fail; 2134 } 2135 2136 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2137 (LPBYTE)result, &size); 2138 if (err == ERROR_MORE_DATA) { 2139 slog("ProductName longer than expected (%lu bytes), retrying", 2140 size); 2141 g_free(result); 2142 result = NULL; 2143 if (size > 0) { 2144 result = g_malloc0(size); 2145 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 2146 (LPBYTE)result, &size); 2147 } 2148 } 2149 if (err != ERROR_SUCCESS) { 2150 error_setg_win32(errp, err, "failed to retrive ProductName"); 2151 goto fail; 2152 } 2153 2154 return result; 2155 2156 fail: 2157 g_free(result); 2158 return NULL; 2159 } 2160 2161 static char *ga_get_current_arch(void) 2162 { 2163 SYSTEM_INFO info; 2164 GetNativeSystemInfo(&info); 2165 char *result = NULL; 2166 switch (info.wProcessorArchitecture) { 2167 case PROCESSOR_ARCHITECTURE_AMD64: 2168 result = g_strdup("x86_64"); 2169 break; 2170 case PROCESSOR_ARCHITECTURE_ARM: 2171 result = g_strdup("arm"); 2172 break; 2173 case PROCESSOR_ARCHITECTURE_IA64: 2174 result = g_strdup("ia64"); 2175 break; 2176 case PROCESSOR_ARCHITECTURE_INTEL: 2177 result = g_strdup("x86"); 2178 break; 2179 case PROCESSOR_ARCHITECTURE_UNKNOWN: 2180 default: 2181 slog("unknown processor architecture 0x%0x", 2182 info.wProcessorArchitecture); 2183 result = g_strdup("unknown"); 2184 break; 2185 } 2186 return result; 2187 } 2188 2189 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 2190 { 2191 Error *local_err = NULL; 2192 OSVERSIONINFOEXW os_version = {0}; 2193 bool server; 2194 char *product_name; 2195 GuestOSInfo *info; 2196 2197 ga_get_win_version(&os_version, &local_err); 2198 if (local_err) { 2199 error_propagate(errp, local_err); 2200 return NULL; 2201 } 2202 2203 server = os_version.wProductType != VER_NT_WORKSTATION; 2204 product_name = ga_get_win_product_name(&local_err); 2205 if (product_name == NULL) { 2206 error_propagate(errp, local_err); 2207 return NULL; 2208 } 2209 2210 info = g_new0(GuestOSInfo, 1); 2211 2212 info->has_kernel_version = true; 2213 info->kernel_version = g_strdup_printf("%lu.%lu", 2214 os_version.dwMajorVersion, 2215 os_version.dwMinorVersion); 2216 info->has_kernel_release = true; 2217 info->kernel_release = g_strdup_printf("%lu", 2218 os_version.dwBuildNumber); 2219 info->has_machine = true; 2220 info->machine = ga_get_current_arch(); 2221 2222 info->has_id = true; 2223 info->id = g_strdup("mswindows"); 2224 info->has_name = true; 2225 info->name = g_strdup("Microsoft Windows"); 2226 info->has_pretty_name = true; 2227 info->pretty_name = product_name; 2228 info->has_version = true; 2229 info->version = ga_get_win_name(&os_version, false); 2230 info->has_version_id = true; 2231 info->version_id = ga_get_win_name(&os_version, true); 2232 info->has_variant = true; 2233 info->variant = g_strdup(server ? "server" : "client"); 2234 info->has_variant_id = true; 2235 info->variant_id = g_strdup(server ? "server" : "client"); 2236 2237 return info; 2238 } 2239