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 14 #ifndef _WIN32_WINNT 15 # define _WIN32_WINNT 0x0600 16 #endif 17 #include "qemu/osdep.h" 18 #include <wtypes.h> 19 #include <powrprof.h> 20 #include <winsock2.h> 21 #include <ws2tcpip.h> 22 #include <iptypes.h> 23 #include <iphlpapi.h> 24 #ifdef CONFIG_QGA_NTDDSCSI 25 #include <winioctl.h> 26 #include <ntddscsi.h> 27 #include <setupapi.h> 28 #include <initguid.h> 29 #endif 30 #include <lm.h> 31 #include <wtsapi32.h> 32 #include <wininet.h> 33 34 #include "qga/guest-agent-core.h" 35 #include "qga/vss-win32.h" 36 #include "qga-qmp-commands.h" 37 #include "qapi/qmp/qerror.h" 38 #include "qemu/queue.h" 39 #include "qemu/host-utils.h" 40 #include "qemu/base64.h" 41 42 #ifndef SHTDN_REASON_FLAG_PLANNED 43 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 44 #endif 45 46 /* multiple of 100 nanoseconds elapsed between windows baseline 47 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 48 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 49 (365 * (1970 - 1601) + \ 50 (1970 - 1601) / 4 - 3)) 51 52 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 53 54 typedef struct GuestFileHandle { 55 int64_t id; 56 HANDLE fh; 57 QTAILQ_ENTRY(GuestFileHandle) next; 58 } GuestFileHandle; 59 60 static struct { 61 QTAILQ_HEAD(, GuestFileHandle) filehandles; 62 } guest_file_state = { 63 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 64 }; 65 66 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 67 68 typedef struct OpenFlags { 69 const char *forms; 70 DWORD desired_access; 71 DWORD creation_disposition; 72 } OpenFlags; 73 static OpenFlags guest_file_open_modes[] = { 74 {"r", GENERIC_READ, OPEN_EXISTING}, 75 {"rb", GENERIC_READ, OPEN_EXISTING}, 76 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 77 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 78 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 79 {"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 80 {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 81 {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 82 {"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 83 {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 84 {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 85 {"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 86 {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 87 {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS } 88 }; 89 90 static OpenFlags *find_open_flag(const char *mode_str) 91 { 92 int mode; 93 Error **errp = NULL; 94 95 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 96 OpenFlags *flags = guest_file_open_modes + mode; 97 98 if (strcmp(flags->forms, mode_str) == 0) { 99 return flags; 100 } 101 } 102 103 error_setg(errp, "invalid file open mode '%s'", mode_str); 104 return NULL; 105 } 106 107 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 108 { 109 GuestFileHandle *gfh; 110 int64_t handle; 111 112 handle = ga_get_fd_handle(ga_state, errp); 113 if (handle < 0) { 114 return -1; 115 } 116 gfh = g_new0(GuestFileHandle, 1); 117 gfh->id = handle; 118 gfh->fh = fh; 119 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 120 121 return handle; 122 } 123 124 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 125 { 126 GuestFileHandle *gfh; 127 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 128 if (gfh->id == id) { 129 return gfh; 130 } 131 } 132 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 133 return NULL; 134 } 135 136 static void handle_set_nonblocking(HANDLE fh) 137 { 138 DWORD file_type, pipe_state; 139 file_type = GetFileType(fh); 140 if (file_type != FILE_TYPE_PIPE) { 141 return; 142 } 143 /* If file_type == FILE_TYPE_PIPE, according to MSDN 144 * the specified file is socket or named pipe */ 145 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 146 NULL, NULL, NULL, 0)) { 147 return; 148 } 149 /* The fd is named pipe fd */ 150 if (pipe_state & PIPE_NOWAIT) { 151 return; 152 } 153 154 pipe_state |= PIPE_NOWAIT; 155 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 156 } 157 158 int64_t qmp_guest_file_open(const char *path, bool has_mode, 159 const char *mode, Error **errp) 160 { 161 int64_t fd; 162 HANDLE fh; 163 HANDLE templ_file = NULL; 164 DWORD share_mode = FILE_SHARE_READ; 165 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 166 LPSECURITY_ATTRIBUTES sa_attr = NULL; 167 OpenFlags *guest_flags; 168 169 if (!has_mode) { 170 mode = "r"; 171 } 172 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 173 guest_flags = find_open_flag(mode); 174 if (guest_flags == NULL) { 175 error_setg(errp, "invalid file open mode"); 176 return -1; 177 } 178 179 fh = CreateFile(path, guest_flags->desired_access, share_mode, sa_attr, 180 guest_flags->creation_disposition, flags_and_attr, 181 templ_file); 182 if (fh == INVALID_HANDLE_VALUE) { 183 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 184 path); 185 return -1; 186 } 187 188 /* set fd non-blocking to avoid common use cases (like reading from a 189 * named pipe) from hanging the agent 190 */ 191 handle_set_nonblocking(fh); 192 193 fd = guest_file_handle_add(fh, errp); 194 if (fd < 0) { 195 CloseHandle(fh); 196 error_setg(errp, "failed to add handle to qmp handle table"); 197 return -1; 198 } 199 200 slog("guest-file-open, handle: % " PRId64, fd); 201 return fd; 202 } 203 204 void qmp_guest_file_close(int64_t handle, Error **errp) 205 { 206 bool ret; 207 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 208 slog("guest-file-close called, handle: %" PRId64, handle); 209 if (gfh == NULL) { 210 return; 211 } 212 ret = CloseHandle(gfh->fh); 213 if (!ret) { 214 error_setg_win32(errp, GetLastError(), "failed close handle"); 215 return; 216 } 217 218 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 219 g_free(gfh); 220 } 221 222 static void acquire_privilege(const char *name, Error **errp) 223 { 224 HANDLE token = NULL; 225 TOKEN_PRIVILEGES priv; 226 Error *local_err = NULL; 227 228 if (OpenProcessToken(GetCurrentProcess(), 229 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token)) 230 { 231 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 232 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 233 "no luid for requested privilege"); 234 goto out; 235 } 236 237 priv.PrivilegeCount = 1; 238 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 239 240 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 241 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 242 "unable to acquire requested privilege"); 243 goto out; 244 } 245 246 } else { 247 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 248 "failed to open privilege token"); 249 } 250 251 out: 252 if (token) { 253 CloseHandle(token); 254 } 255 error_propagate(errp, local_err); 256 } 257 258 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 259 Error **errp) 260 { 261 Error *local_err = NULL; 262 263 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 264 if (!thread) { 265 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 266 "failed to dispatch asynchronous command"); 267 error_propagate(errp, local_err); 268 } 269 } 270 271 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 272 { 273 Error *local_err = NULL; 274 UINT shutdown_flag = EWX_FORCE; 275 276 slog("guest-shutdown called, mode: %s", mode); 277 278 if (!has_mode || strcmp(mode, "powerdown") == 0) { 279 shutdown_flag |= EWX_POWEROFF; 280 } else if (strcmp(mode, "halt") == 0) { 281 shutdown_flag |= EWX_SHUTDOWN; 282 } else if (strcmp(mode, "reboot") == 0) { 283 shutdown_flag |= EWX_REBOOT; 284 } else { 285 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 286 "halt|powerdown|reboot"); 287 return; 288 } 289 290 /* Request a shutdown privilege, but try to shut down the system 291 anyway. */ 292 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 293 if (local_err) { 294 error_propagate(errp, local_err); 295 return; 296 } 297 298 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 299 slog("guest-shutdown failed: %lu", GetLastError()); 300 error_setg(errp, QERR_UNDEFINED_ERROR); 301 } 302 } 303 304 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, 305 int64_t count, Error **errp) 306 { 307 GuestFileRead *read_data = NULL; 308 guchar *buf; 309 HANDLE fh; 310 bool is_ok; 311 DWORD read_count; 312 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 313 314 if (!gfh) { 315 return NULL; 316 } 317 if (!has_count) { 318 count = QGA_READ_COUNT_DEFAULT; 319 } else if (count < 0) { 320 error_setg(errp, "value '%" PRId64 321 "' is invalid for argument count", count); 322 return NULL; 323 } 324 325 fh = gfh->fh; 326 buf = g_malloc0(count+1); 327 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 328 if (!is_ok) { 329 error_setg_win32(errp, GetLastError(), "failed to read file"); 330 slog("guest-file-read failed, handle %" PRId64, handle); 331 } else { 332 buf[read_count] = 0; 333 read_data = g_new0(GuestFileRead, 1); 334 read_data->count = (size_t)read_count; 335 read_data->eof = read_count == 0; 336 337 if (read_count != 0) { 338 read_data->buf_b64 = g_base64_encode(buf, read_count); 339 } 340 } 341 g_free(buf); 342 343 return read_data; 344 } 345 346 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 347 bool has_count, int64_t count, 348 Error **errp) 349 { 350 GuestFileWrite *write_data = NULL; 351 guchar *buf; 352 gsize buf_len; 353 bool is_ok; 354 DWORD write_count; 355 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 356 HANDLE fh; 357 358 if (!gfh) { 359 return NULL; 360 } 361 fh = gfh->fh; 362 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 363 if (!buf) { 364 return NULL; 365 } 366 367 if (!has_count) { 368 count = buf_len; 369 } else if (count < 0 || count > buf_len) { 370 error_setg(errp, "value '%" PRId64 371 "' is invalid for argument count", count); 372 goto done; 373 } 374 375 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 376 if (!is_ok) { 377 error_setg_win32(errp, GetLastError(), "failed to write to file"); 378 slog("guest-file-write-failed, handle: %" PRId64, handle); 379 } else { 380 write_data = g_new0(GuestFileWrite, 1); 381 write_data->count = (size_t) write_count; 382 } 383 384 done: 385 g_free(buf); 386 return write_data; 387 } 388 389 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 390 GuestFileWhence *whence_code, 391 Error **errp) 392 { 393 GuestFileHandle *gfh; 394 GuestFileSeek *seek_data; 395 HANDLE fh; 396 LARGE_INTEGER new_pos, off_pos; 397 off_pos.QuadPart = offset; 398 BOOL res; 399 int whence; 400 Error *err = NULL; 401 402 gfh = guest_file_handle_find(handle, errp); 403 if (!gfh) { 404 return NULL; 405 } 406 407 /* We stupidly exposed 'whence':'int' in our qapi */ 408 whence = ga_parse_whence(whence_code, &err); 409 if (err) { 410 error_propagate(errp, err); 411 return NULL; 412 } 413 414 fh = gfh->fh; 415 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 416 if (!res) { 417 error_setg_win32(errp, GetLastError(), "failed to seek file"); 418 return NULL; 419 } 420 seek_data = g_new0(GuestFileSeek, 1); 421 seek_data->position = new_pos.QuadPart; 422 return seek_data; 423 } 424 425 void qmp_guest_file_flush(int64_t handle, Error **errp) 426 { 427 HANDLE fh; 428 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 429 if (!gfh) { 430 return; 431 } 432 433 fh = gfh->fh; 434 if (!FlushFileBuffers(fh)) { 435 error_setg_win32(errp, GetLastError(), "failed to flush file"); 436 } 437 } 438 439 #ifdef CONFIG_QGA_NTDDSCSI 440 441 static STORAGE_BUS_TYPE win2qemu[] = { 442 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 443 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 444 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 445 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 446 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 447 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 448 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 449 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 450 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 451 #if (_WIN32_WINNT >= 0x0600) 452 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 453 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 454 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 455 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 456 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 457 #endif 458 #if (_WIN32_WINNT >= 0x0601) 459 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 460 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 461 #endif 462 }; 463 464 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 465 { 466 if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) { 467 return GUEST_DISK_BUS_TYPE_UNKNOWN; 468 } 469 return win2qemu[(int)bus]; 470 } 471 472 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME, 473 0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2, 474 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 475 476 static GuestPCIAddress *get_pci_info(char *guid, Error **errp) 477 { 478 HDEVINFO dev_info; 479 SP_DEVINFO_DATA dev_info_data; 480 DWORD size = 0; 481 int i; 482 char dev_name[MAX_PATH]; 483 char *buffer = NULL; 484 GuestPCIAddress *pci = NULL; 485 char *name = g_strdup(&guid[4]); 486 487 if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) { 488 error_setg_win32(errp, GetLastError(), "failed to get dos device name"); 489 goto out; 490 } 491 492 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0, 493 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 494 if (dev_info == INVALID_HANDLE_VALUE) { 495 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 496 goto out; 497 } 498 499 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 500 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 501 DWORD addr, bus, slot, func, dev, data, size2; 502 while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 503 SPDRP_PHYSICAL_DEVICE_OBJECT_NAME, 504 &data, (PBYTE)buffer, size, 505 &size2)) { 506 size = MAX(size, size2); 507 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 508 g_free(buffer); 509 /* Double the size to avoid problems on 510 * W2k MBCS systems per KB 888609. 511 * https://support.microsoft.com/en-us/kb/259695 */ 512 buffer = g_malloc(size * 2); 513 } else { 514 error_setg_win32(errp, GetLastError(), 515 "failed to get device name"); 516 goto free_dev_info; 517 } 518 } 519 520 if (g_strcmp0(buffer, dev_name)) { 521 continue; 522 } 523 524 /* There is no need to allocate buffer in the next functions. The size 525 * is known and ULONG according to 526 * https://support.microsoft.com/en-us/kb/253232 527 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 528 */ 529 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 530 SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) { 531 break; 532 } 533 534 /* The function retrieves the device's address. This value will be 535 * transformed into device function and number */ 536 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 537 SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) { 538 break; 539 } 540 541 /* This call returns UINumber of DEVICE_CAPABILITIES structure. 542 * This number is typically a user-perceived slot number. */ 543 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 544 SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) { 545 break; 546 } 547 548 /* SetupApi gives us the same information as driver with 549 * IoGetDeviceProperty. According to Microsoft 550 * https://support.microsoft.com/en-us/kb/253232 551 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF); 552 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF); 553 * SPDRP_ADDRESS is propertyAddress, so we do the same.*/ 554 555 func = addr & 0x0000FFFF; 556 dev = (addr >> 16) & 0x0000FFFF; 557 pci = g_malloc0(sizeof(*pci)); 558 pci->domain = dev; 559 pci->slot = slot; 560 pci->function = func; 561 pci->bus = bus; 562 break; 563 } 564 565 free_dev_info: 566 SetupDiDestroyDeviceInfoList(dev_info); 567 out: 568 g_free(buffer); 569 g_free(name); 570 return pci; 571 } 572 573 static int get_disk_bus_type(HANDLE vol_h, Error **errp) 574 { 575 STORAGE_PROPERTY_QUERY query; 576 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 577 DWORD received; 578 579 dev_desc = &buf; 580 dev_desc->Size = sizeof(buf); 581 query.PropertyId = StorageDeviceProperty; 582 query.QueryType = PropertyStandardQuery; 583 584 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 585 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 586 dev_desc->Size, &received, NULL)) { 587 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 588 return -1; 589 } 590 591 return dev_desc->BusType; 592 } 593 594 /* VSS provider works with volumes, thus there is no difference if 595 * the volume consist of spanned disks. Info about the first disk in the 596 * volume is returned for the spanned disk group (LVM) */ 597 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 598 { 599 GuestDiskAddressList *list = NULL; 600 GuestDiskAddress *disk; 601 SCSI_ADDRESS addr, *scsi_ad; 602 DWORD len; 603 int bus; 604 HANDLE vol_h; 605 606 scsi_ad = &addr; 607 char *name = g_strndup(guid, strlen(guid)-1); 608 609 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 610 0, NULL); 611 if (vol_h == INVALID_HANDLE_VALUE) { 612 error_setg_win32(errp, GetLastError(), "failed to open volume"); 613 goto out_free; 614 } 615 616 bus = get_disk_bus_type(vol_h, errp); 617 if (bus < 0) { 618 goto out_close; 619 } 620 621 disk = g_malloc0(sizeof(*disk)); 622 disk->bus_type = find_bus_type(bus); 623 if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID 624 #if (_WIN32_WINNT >= 0x0600) 625 /* This bus type is not supported before Windows Server 2003 SP1 */ 626 || bus == BusTypeSas 627 #endif 628 ) { 629 /* We are able to use the same ioctls for different bus types 630 * according to Microsoft docs 631 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 632 if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 633 sizeof(SCSI_ADDRESS), &len, NULL)) { 634 disk->unit = addr.Lun; 635 disk->target = addr.TargetId; 636 disk->bus = addr.PathId; 637 disk->pci_controller = get_pci_info(name, errp); 638 } 639 /* We do not set error in this case, because we still have enough 640 * information about volume. */ 641 } else { 642 disk->pci_controller = NULL; 643 } 644 645 list = g_malloc0(sizeof(*list)); 646 list->value = disk; 647 list->next = NULL; 648 out_close: 649 CloseHandle(vol_h); 650 out_free: 651 g_free(name); 652 return list; 653 } 654 655 #else 656 657 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 658 { 659 return NULL; 660 } 661 662 #endif /* CONFIG_QGA_NTDDSCSI */ 663 664 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 665 { 666 DWORD info_size; 667 char mnt, *mnt_point; 668 char fs_name[32]; 669 char vol_info[MAX_PATH+1]; 670 size_t len; 671 GuestFilesystemInfo *fs = NULL; 672 673 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 674 if (GetLastError() != ERROR_MORE_DATA) { 675 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 676 return NULL; 677 } 678 679 mnt_point = g_malloc(info_size + 1); 680 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 681 &info_size)) { 682 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 683 goto free; 684 } 685 686 len = strlen(mnt_point); 687 mnt_point[len] = '\\'; 688 mnt_point[len+1] = 0; 689 if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL, 690 NULL, (LPSTR)&fs_name, sizeof(fs_name))) { 691 if (GetLastError() != ERROR_NOT_READY) { 692 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 693 } 694 goto free; 695 } 696 697 fs_name[sizeof(fs_name) - 1] = 0; 698 fs = g_malloc(sizeof(*fs)); 699 fs->name = g_strdup(guid); 700 if (len == 0) { 701 fs->mountpoint = g_strdup("System Reserved"); 702 } else { 703 fs->mountpoint = g_strndup(mnt_point, len); 704 } 705 fs->type = g_strdup(fs_name); 706 fs->disk = build_guest_disk_info(guid, errp); 707 free: 708 g_free(mnt_point); 709 return fs; 710 } 711 712 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 713 { 714 HANDLE vol_h; 715 GuestFilesystemInfoList *new, *ret = NULL; 716 char guid[256]; 717 718 vol_h = FindFirstVolume(guid, sizeof(guid)); 719 if (vol_h == INVALID_HANDLE_VALUE) { 720 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 721 return NULL; 722 } 723 724 do { 725 GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp); 726 if (info == NULL) { 727 continue; 728 } 729 new = g_malloc(sizeof(*ret)); 730 new->value = info; 731 new->next = ret; 732 ret = new; 733 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 734 735 if (GetLastError() != ERROR_NO_MORE_FILES) { 736 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 737 } 738 739 FindVolumeClose(vol_h); 740 return ret; 741 } 742 743 /* 744 * Return status of freeze/thaw 745 */ 746 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 747 { 748 if (!vss_initialized()) { 749 error_setg(errp, QERR_UNSUPPORTED); 750 return 0; 751 } 752 753 if (ga_is_frozen(ga_state)) { 754 return GUEST_FSFREEZE_STATUS_FROZEN; 755 } 756 757 return GUEST_FSFREEZE_STATUS_THAWED; 758 } 759 760 /* 761 * Freeze local file systems using Volume Shadow-copy Service. 762 * The frozen state is limited for up to 10 seconds by VSS. 763 */ 764 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 765 { 766 int i; 767 Error *local_err = NULL; 768 769 if (!vss_initialized()) { 770 error_setg(errp, QERR_UNSUPPORTED); 771 return 0; 772 } 773 774 slog("guest-fsfreeze called"); 775 776 /* cannot risk guest agent blocking itself on a write in this state */ 777 ga_set_frozen(ga_state); 778 779 qga_vss_fsfreeze(&i, true, &local_err); 780 if (local_err) { 781 error_propagate(errp, local_err); 782 goto error; 783 } 784 785 return i; 786 787 error: 788 local_err = NULL; 789 qmp_guest_fsfreeze_thaw(&local_err); 790 if (local_err) { 791 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 792 error_free(local_err); 793 } 794 return 0; 795 } 796 797 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 798 strList *mountpoints, 799 Error **errp) 800 { 801 error_setg(errp, QERR_UNSUPPORTED); 802 803 return 0; 804 } 805 806 /* 807 * Thaw local file systems using Volume Shadow-copy Service. 808 */ 809 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 810 { 811 int i; 812 813 if (!vss_initialized()) { 814 error_setg(errp, QERR_UNSUPPORTED); 815 return 0; 816 } 817 818 qga_vss_fsfreeze(&i, false, errp); 819 820 ga_unset_frozen(ga_state); 821 return i; 822 } 823 824 static void guest_fsfreeze_cleanup(void) 825 { 826 Error *err = NULL; 827 828 if (!vss_initialized()) { 829 return; 830 } 831 832 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 833 qmp_guest_fsfreeze_thaw(&err); 834 if (err) { 835 slog("failed to clean up frozen filesystems: %s", 836 error_get_pretty(err)); 837 error_free(err); 838 } 839 } 840 841 vss_deinit(true); 842 } 843 844 /* 845 * Walk list of mounted file systems in the guest, and discard unused 846 * areas. 847 */ 848 GuestFilesystemTrimResponse * 849 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 850 { 851 GuestFilesystemTrimResponse *resp; 852 HANDLE handle; 853 WCHAR guid[MAX_PATH] = L""; 854 855 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 856 if (handle == INVALID_HANDLE_VALUE) { 857 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 858 return NULL; 859 } 860 861 resp = g_new0(GuestFilesystemTrimResponse, 1); 862 863 do { 864 GuestFilesystemTrimResult *res; 865 GuestFilesystemTrimResultList *list; 866 PWCHAR uc_path; 867 DWORD char_count = 0; 868 char *path, *out; 869 GError *gerr = NULL; 870 gchar * argv[4]; 871 872 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 873 874 if (GetLastError() != ERROR_MORE_DATA) { 875 continue; 876 } 877 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 878 continue; 879 } 880 881 uc_path = g_malloc(sizeof(WCHAR) * char_count); 882 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 883 &char_count) || !*uc_path) { 884 /* strange, but this condition could be faced even with size == 2 */ 885 g_free(uc_path); 886 continue; 887 } 888 889 res = g_new0(GuestFilesystemTrimResult, 1); 890 891 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 892 893 g_free(uc_path); 894 895 if (!path) { 896 res->has_error = true; 897 res->error = g_strdup(gerr->message); 898 g_error_free(gerr); 899 break; 900 } 901 902 res->path = path; 903 904 list = g_new0(GuestFilesystemTrimResultList, 1); 905 list->value = res; 906 list->next = resp->paths; 907 908 resp->paths = list; 909 910 memset(argv, 0, sizeof(argv)); 911 argv[0] = (gchar *)"defrag.exe"; 912 argv[1] = (gchar *)"/L"; 913 argv[2] = path; 914 915 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 916 &out /* stdout */, NULL /* stdin */, 917 NULL, &gerr)) { 918 res->has_error = true; 919 res->error = g_strdup(gerr->message); 920 g_error_free(gerr); 921 } else { 922 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 923 Error is reported in the output with something like 924 (x89000020) etc code in the stdout */ 925 926 int i; 927 gchar **lines = g_strsplit(out, "\r\n", 0); 928 g_free(out); 929 930 for (i = 0; lines[i] != NULL; i++) { 931 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 932 continue; 933 } 934 res->has_error = true; 935 res->error = g_strdup(lines[i]); 936 break; 937 } 938 g_strfreev(lines); 939 } 940 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 941 942 FindVolumeClose(handle); 943 return resp; 944 } 945 946 typedef enum { 947 GUEST_SUSPEND_MODE_DISK, 948 GUEST_SUSPEND_MODE_RAM 949 } GuestSuspendMode; 950 951 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 952 { 953 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 954 Error *local_err = NULL; 955 956 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 957 if (!GetPwrCapabilities(&sys_pwr_caps)) { 958 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 959 "failed to determine guest suspend capabilities"); 960 goto out; 961 } 962 963 switch (mode) { 964 case GUEST_SUSPEND_MODE_DISK: 965 if (!sys_pwr_caps.SystemS4) { 966 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 967 "suspend-to-disk not supported by OS"); 968 } 969 break; 970 case GUEST_SUSPEND_MODE_RAM: 971 if (!sys_pwr_caps.SystemS3) { 972 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 973 "suspend-to-ram not supported by OS"); 974 } 975 break; 976 default: 977 error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode", 978 "GuestSuspendMode"); 979 } 980 981 out: 982 error_propagate(errp, local_err); 983 } 984 985 static DWORD WINAPI do_suspend(LPVOID opaque) 986 { 987 GuestSuspendMode *mode = opaque; 988 DWORD ret = 0; 989 990 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 991 slog("failed to suspend guest, %lu", GetLastError()); 992 ret = -1; 993 } 994 g_free(mode); 995 return ret; 996 } 997 998 void qmp_guest_suspend_disk(Error **errp) 999 { 1000 Error *local_err = NULL; 1001 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1002 1003 *mode = GUEST_SUSPEND_MODE_DISK; 1004 check_suspend_mode(*mode, &local_err); 1005 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1006 execute_async(do_suspend, mode, &local_err); 1007 1008 if (local_err) { 1009 error_propagate(errp, local_err); 1010 g_free(mode); 1011 } 1012 } 1013 1014 void qmp_guest_suspend_ram(Error **errp) 1015 { 1016 Error *local_err = NULL; 1017 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1018 1019 *mode = GUEST_SUSPEND_MODE_RAM; 1020 check_suspend_mode(*mode, &local_err); 1021 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1022 execute_async(do_suspend, mode, &local_err); 1023 1024 if (local_err) { 1025 error_propagate(errp, local_err); 1026 g_free(mode); 1027 } 1028 } 1029 1030 void qmp_guest_suspend_hybrid(Error **errp) 1031 { 1032 error_setg(errp, QERR_UNSUPPORTED); 1033 } 1034 1035 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1036 { 1037 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1038 ULONG adptr_addrs_len = 0; 1039 DWORD ret; 1040 1041 /* Call the first time to get the adptr_addrs_len. */ 1042 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1043 NULL, adptr_addrs, &adptr_addrs_len); 1044 1045 adptr_addrs = g_malloc(adptr_addrs_len); 1046 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1047 NULL, adptr_addrs, &adptr_addrs_len); 1048 if (ret != ERROR_SUCCESS) { 1049 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1050 g_free(adptr_addrs); 1051 adptr_addrs = NULL; 1052 } 1053 return adptr_addrs; 1054 } 1055 1056 static char *guest_wctomb_dup(WCHAR *wstr) 1057 { 1058 char *str; 1059 size_t i; 1060 1061 i = wcslen(wstr) + 1; 1062 str = g_malloc(i); 1063 WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, 1064 wstr, -1, str, i, NULL, NULL); 1065 return str; 1066 } 1067 1068 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1069 Error **errp) 1070 { 1071 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1072 DWORD len; 1073 int ret; 1074 1075 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1076 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1077 len = sizeof(addr_str); 1078 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1079 ip_addr->Address.iSockaddrLength, 1080 NULL, 1081 addr_str, 1082 &len); 1083 if (ret != 0) { 1084 error_setg_win32(errp, WSAGetLastError(), 1085 "failed address presentation form conversion"); 1086 return NULL; 1087 } 1088 return g_strdup(addr_str); 1089 } 1090 return NULL; 1091 } 1092 1093 #if (_WIN32_WINNT >= 0x0600) 1094 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1095 { 1096 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1097 * field to obtain the prefix. 1098 */ 1099 return ip_addr->OnLinkPrefixLength; 1100 } 1101 #else 1102 /* When using the Windows XP and 2003 build environment, do the best we can to 1103 * figure out the prefix. 1104 */ 1105 static IP_ADAPTER_INFO *guest_get_adapters_info(void) 1106 { 1107 IP_ADAPTER_INFO *adptr_info = NULL; 1108 ULONG adptr_info_len = 0; 1109 DWORD ret; 1110 1111 /* Call the first time to get the adptr_info_len. */ 1112 GetAdaptersInfo(adptr_info, &adptr_info_len); 1113 1114 adptr_info = g_malloc(adptr_info_len); 1115 ret = GetAdaptersInfo(adptr_info, &adptr_info_len); 1116 if (ret != ERROR_SUCCESS) { 1117 g_free(adptr_info); 1118 adptr_info = NULL; 1119 } 1120 return adptr_info; 1121 } 1122 1123 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1124 { 1125 int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */ 1126 IP_ADAPTER_INFO *adptr_info, *info; 1127 IP_ADDR_STRING *ip; 1128 struct in_addr *p; 1129 1130 if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) { 1131 return prefix; 1132 } 1133 adptr_info = guest_get_adapters_info(); 1134 if (adptr_info == NULL) { 1135 return prefix; 1136 } 1137 1138 /* Match up the passed in ip_addr with one found in adaptr_info. 1139 * The matching one in adptr_info will have the netmask. 1140 */ 1141 p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr; 1142 for (info = adptr_info; info; info = info->Next) { 1143 for (ip = &info->IpAddressList; ip; ip = ip->Next) { 1144 if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) { 1145 prefix = ctpop32(inet_addr(ip->IpMask.String)); 1146 goto out; 1147 } 1148 } 1149 } 1150 out: 1151 g_free(adptr_info); 1152 return prefix; 1153 } 1154 #endif 1155 1156 #define INTERFACE_PATH_BUF_SZ 512 1157 1158 static DWORD get_interface_index(const char *guid) 1159 { 1160 ULONG index; 1161 DWORD status; 1162 wchar_t wbuf[INTERFACE_PATH_BUF_SZ]; 1163 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid); 1164 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0; 1165 status = GetAdapterIndex (wbuf, &index); 1166 if (status != NO_ERROR) { 1167 return (DWORD)~0; 1168 } else { 1169 return index; 1170 } 1171 } 1172 static int guest_get_network_stats(const char *name, 1173 GuestNetworkInterfaceStat *stats) 1174 { 1175 DWORD if_index = 0; 1176 MIB_IFROW a_mid_ifrow; 1177 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow)); 1178 if_index = get_interface_index(name); 1179 a_mid_ifrow.dwIndex = if_index; 1180 if (NO_ERROR == GetIfEntry(&a_mid_ifrow)) { 1181 stats->rx_bytes = a_mid_ifrow.dwInOctets; 1182 stats->rx_packets = a_mid_ifrow.dwInUcastPkts; 1183 stats->rx_errs = a_mid_ifrow.dwInErrors; 1184 stats->rx_dropped = a_mid_ifrow.dwInDiscards; 1185 stats->tx_bytes = a_mid_ifrow.dwOutOctets; 1186 stats->tx_packets = a_mid_ifrow.dwOutUcastPkts; 1187 stats->tx_errs = a_mid_ifrow.dwOutErrors; 1188 stats->tx_dropped = a_mid_ifrow.dwOutDiscards; 1189 return 0; 1190 } 1191 return -1; 1192 } 1193 1194 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1195 { 1196 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1197 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1198 GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; 1199 GuestIpAddressList *head_addr, *cur_addr; 1200 GuestNetworkInterfaceList *info; 1201 GuestNetworkInterfaceStat *interface_stat = NULL; 1202 GuestIpAddressList *address_item = NULL; 1203 unsigned char *mac_addr; 1204 char *addr_str; 1205 WORD wsa_version; 1206 WSADATA wsa_data; 1207 int ret; 1208 1209 adptr_addrs = guest_get_adapters_addresses(errp); 1210 if (adptr_addrs == NULL) { 1211 return NULL; 1212 } 1213 1214 /* Make WSA APIs available. */ 1215 wsa_version = MAKEWORD(2, 2); 1216 ret = WSAStartup(wsa_version, &wsa_data); 1217 if (ret != 0) { 1218 error_setg_win32(errp, ret, "failed socket startup"); 1219 goto out; 1220 } 1221 1222 for (addr = adptr_addrs; addr; addr = addr->Next) { 1223 info = g_malloc0(sizeof(*info)); 1224 1225 if (cur_item == NULL) { 1226 head = cur_item = info; 1227 } else { 1228 cur_item->next = info; 1229 cur_item = info; 1230 } 1231 1232 info->value = g_malloc0(sizeof(*info->value)); 1233 info->value->name = guest_wctomb_dup(addr->FriendlyName); 1234 1235 if (addr->PhysicalAddressLength != 0) { 1236 mac_addr = addr->PhysicalAddress; 1237 1238 info->value->hardware_address = 1239 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1240 (int) mac_addr[0], (int) mac_addr[1], 1241 (int) mac_addr[2], (int) mac_addr[3], 1242 (int) mac_addr[4], (int) mac_addr[5]); 1243 1244 info->value->has_hardware_address = true; 1245 } 1246 1247 head_addr = NULL; 1248 cur_addr = NULL; 1249 for (ip_addr = addr->FirstUnicastAddress; 1250 ip_addr; 1251 ip_addr = ip_addr->Next) { 1252 addr_str = guest_addr_to_str(ip_addr, errp); 1253 if (addr_str == NULL) { 1254 continue; 1255 } 1256 1257 address_item = g_malloc0(sizeof(*address_item)); 1258 1259 if (!cur_addr) { 1260 head_addr = cur_addr = address_item; 1261 } else { 1262 cur_addr->next = address_item; 1263 cur_addr = address_item; 1264 } 1265 1266 address_item->value = g_malloc0(sizeof(*address_item->value)); 1267 address_item->value->ip_address = addr_str; 1268 address_item->value->prefix = guest_ip_prefix(ip_addr); 1269 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1270 address_item->value->ip_address_type = 1271 GUEST_IP_ADDRESS_TYPE_IPV4; 1272 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1273 address_item->value->ip_address_type = 1274 GUEST_IP_ADDRESS_TYPE_IPV6; 1275 } 1276 } 1277 if (head_addr) { 1278 info->value->has_ip_addresses = true; 1279 info->value->ip_addresses = head_addr; 1280 } 1281 if (!info->value->has_statistics) { 1282 interface_stat = g_malloc0(sizeof(*interface_stat)); 1283 if (guest_get_network_stats(addr->AdapterName, 1284 interface_stat) == -1) { 1285 info->value->has_statistics = false; 1286 g_free(interface_stat); 1287 } else { 1288 info->value->statistics = interface_stat; 1289 info->value->has_statistics = true; 1290 } 1291 } 1292 } 1293 WSACleanup(); 1294 out: 1295 g_free(adptr_addrs); 1296 return head; 1297 } 1298 1299 int64_t qmp_guest_get_time(Error **errp) 1300 { 1301 SYSTEMTIME ts = {0}; 1302 FILETIME tf; 1303 1304 GetSystemTime(&ts); 1305 if (ts.wYear < 1601 || ts.wYear > 30827) { 1306 error_setg(errp, "Failed to get time"); 1307 return -1; 1308 } 1309 1310 if (!SystemTimeToFileTime(&ts, &tf)) { 1311 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError()); 1312 return -1; 1313 } 1314 1315 return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) 1316 - W32_FT_OFFSET) * 100; 1317 } 1318 1319 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1320 { 1321 Error *local_err = NULL; 1322 SYSTEMTIME ts; 1323 FILETIME tf; 1324 LONGLONG time; 1325 1326 if (!has_time) { 1327 /* Unfortunately, Windows libraries don't provide an easy way to access 1328 * RTC yet: 1329 * 1330 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1331 * 1332 * Instead, a workaround is to use the Windows win32tm command to 1333 * resync the time using the Windows Time service. 1334 */ 1335 LPVOID msg_buffer; 1336 DWORD ret_flags; 1337 1338 HRESULT hr = system("w32tm /resync /nowait"); 1339 1340 if (GetLastError() != 0) { 1341 strerror_s((LPTSTR) & msg_buffer, 0, errno); 1342 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer); 1343 } else if (hr != 0) { 1344 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) { 1345 error_setg(errp, "Windows Time service not running on the " 1346 "guest"); 1347 } else { 1348 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER | 1349 FORMAT_MESSAGE_FROM_SYSTEM | 1350 FORMAT_MESSAGE_IGNORE_INSERTS, NULL, 1351 (DWORD)hr, MAKELANGID(LANG_NEUTRAL, 1352 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0, 1353 NULL)) { 1354 error_setg(errp, "w32tm failed with error (0x%lx), couldn'" 1355 "t retrieve error message", hr); 1356 } else { 1357 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr, 1358 (LPCTSTR)msg_buffer); 1359 LocalFree(msg_buffer); 1360 } 1361 } 1362 } else if (!InternetGetConnectedState(&ret_flags, 0)) { 1363 error_setg(errp, "No internet connection on guest, sync not " 1364 "accurate"); 1365 } 1366 return; 1367 } 1368 1369 /* Validate time passed by user. */ 1370 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1371 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1372 return; 1373 } 1374 1375 time = time_ns / 100 + W32_FT_OFFSET; 1376 1377 tf.dwLowDateTime = (DWORD) time; 1378 tf.dwHighDateTime = (DWORD) (time >> 32); 1379 1380 if (!FileTimeToSystemTime(&tf, &ts)) { 1381 error_setg(errp, "Failed to convert system time %d", 1382 (int)GetLastError()); 1383 return; 1384 } 1385 1386 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1387 if (local_err) { 1388 error_propagate(errp, local_err); 1389 return; 1390 } 1391 1392 if (!SetSystemTime(&ts)) { 1393 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1394 return; 1395 } 1396 } 1397 1398 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1399 { 1400 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1401 DWORD length; 1402 GuestLogicalProcessorList *head, **link; 1403 Error *local_err = NULL; 1404 int64_t current; 1405 1406 ptr = pslpi = NULL; 1407 length = 0; 1408 current = 0; 1409 head = NULL; 1410 link = &head; 1411 1412 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1413 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1414 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1415 ptr = pslpi = g_malloc0(length); 1416 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1417 error_setg(&local_err, "Failed to get processor information: %d", 1418 (int)GetLastError()); 1419 } 1420 } else { 1421 error_setg(&local_err, 1422 "Failed to get processor information buffer length: %d", 1423 (int)GetLastError()); 1424 } 1425 1426 while ((local_err == NULL) && (length > 0)) { 1427 if (pslpi->Relationship == RelationProcessorCore) { 1428 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1429 1430 while (cpu_bits > 0) { 1431 if (!!(cpu_bits & 1)) { 1432 GuestLogicalProcessor *vcpu; 1433 GuestLogicalProcessorList *entry; 1434 1435 vcpu = g_malloc0(sizeof *vcpu); 1436 vcpu->logical_id = current++; 1437 vcpu->online = true; 1438 vcpu->has_can_offline = true; 1439 1440 entry = g_malloc0(sizeof *entry); 1441 entry->value = vcpu; 1442 1443 *link = entry; 1444 link = &entry->next; 1445 } 1446 cpu_bits >>= 1; 1447 } 1448 } 1449 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1450 pslpi++; /* next entry */ 1451 } 1452 1453 g_free(ptr); 1454 1455 if (local_err == NULL) { 1456 if (head != NULL) { 1457 return head; 1458 } 1459 /* there's no guest with zero VCPUs */ 1460 error_setg(&local_err, "Guest reported zero VCPUs"); 1461 } 1462 1463 qapi_free_GuestLogicalProcessorList(head); 1464 error_propagate(errp, local_err); 1465 return NULL; 1466 } 1467 1468 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1469 { 1470 error_setg(errp, QERR_UNSUPPORTED); 1471 return -1; 1472 } 1473 1474 static gchar * 1475 get_net_error_message(gint error) 1476 { 1477 HMODULE module = NULL; 1478 gchar *retval = NULL; 1479 wchar_t *msg = NULL; 1480 int flags; 1481 size_t nchars; 1482 1483 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1484 FORMAT_MESSAGE_IGNORE_INSERTS | 1485 FORMAT_MESSAGE_FROM_SYSTEM; 1486 1487 if (error >= NERR_BASE && error <= MAX_NERR) { 1488 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1489 1490 if (module != NULL) { 1491 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1492 } 1493 } 1494 1495 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1496 1497 if (msg != NULL) { 1498 nchars = wcslen(msg); 1499 1500 if (nchars >= 2 && 1501 msg[nchars - 1] == L'\n' && 1502 msg[nchars - 2] == L'\r') { 1503 msg[nchars - 2] = L'\0'; 1504 } 1505 1506 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1507 1508 LocalFree(msg); 1509 } 1510 1511 if (module != NULL) { 1512 FreeLibrary(module); 1513 } 1514 1515 return retval; 1516 } 1517 1518 void qmp_guest_set_user_password(const char *username, 1519 const char *password, 1520 bool crypted, 1521 Error **errp) 1522 { 1523 NET_API_STATUS nas; 1524 char *rawpasswddata = NULL; 1525 size_t rawpasswdlen; 1526 wchar_t *user = NULL, *wpass = NULL; 1527 USER_INFO_1003 pi1003 = { 0, }; 1528 GError *gerr = NULL; 1529 1530 if (crypted) { 1531 error_setg(errp, QERR_UNSUPPORTED); 1532 return; 1533 } 1534 1535 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1536 if (!rawpasswddata) { 1537 return; 1538 } 1539 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1540 rawpasswddata[rawpasswdlen] = '\0'; 1541 1542 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1543 if (!user) { 1544 goto done; 1545 } 1546 1547 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1548 if (!wpass) { 1549 goto done; 1550 } 1551 1552 pi1003.usri1003_password = wpass; 1553 nas = NetUserSetInfo(NULL, user, 1554 1003, (LPBYTE)&pi1003, 1555 NULL); 1556 1557 if (nas != NERR_Success) { 1558 gchar *msg = get_net_error_message(nas); 1559 error_setg(errp, "failed to set password: %s", msg); 1560 g_free(msg); 1561 } 1562 1563 done: 1564 if (gerr) { 1565 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1566 g_error_free(gerr); 1567 } 1568 g_free(user); 1569 g_free(wpass); 1570 g_free(rawpasswddata); 1571 } 1572 1573 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1574 { 1575 error_setg(errp, QERR_UNSUPPORTED); 1576 return NULL; 1577 } 1578 1579 GuestMemoryBlockResponseList * 1580 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1581 { 1582 error_setg(errp, QERR_UNSUPPORTED); 1583 return NULL; 1584 } 1585 1586 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1587 { 1588 error_setg(errp, QERR_UNSUPPORTED); 1589 return NULL; 1590 } 1591 1592 /* add unsupported commands to the blacklist */ 1593 GList *ga_command_blacklist_init(GList *blacklist) 1594 { 1595 const char *list_unsupported[] = { 1596 "guest-suspend-hybrid", 1597 "guest-set-vcpus", 1598 "guest-get-memory-blocks", "guest-set-memory-blocks", 1599 "guest-get-memory-block-size", 1600 "guest-fsfreeze-freeze-list", 1601 NULL}; 1602 char **p = (char **)list_unsupported; 1603 1604 while (*p) { 1605 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1606 } 1607 1608 if (!vss_init(true)) { 1609 g_debug("vss_init failed, vss commands are going to be disabled"); 1610 const char *list[] = { 1611 "guest-get-fsinfo", "guest-fsfreeze-status", 1612 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 1613 p = (char **)list; 1614 1615 while (*p) { 1616 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1617 } 1618 } 1619 1620 return blacklist; 1621 } 1622 1623 /* register init/cleanup routines for stateful command groups */ 1624 void ga_command_state_init(GAState *s, GACommandState *cs) 1625 { 1626 if (!vss_initialized()) { 1627 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 1628 } 1629 } 1630 1631 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */ 1632 typedef struct _GA_WTSINFOA { 1633 WTS_CONNECTSTATE_CLASS State; 1634 DWORD SessionId; 1635 DWORD IncomingBytes; 1636 DWORD OutgoingBytes; 1637 DWORD IncomingFrames; 1638 DWORD OutgoingFrames; 1639 DWORD IncomingCompressedBytes; 1640 DWORD OutgoingCompressedBy; 1641 CHAR WinStationName[WINSTATIONNAME_LENGTH]; 1642 CHAR Domain[DOMAIN_LENGTH]; 1643 CHAR UserName[USERNAME_LENGTH + 1]; 1644 LARGE_INTEGER ConnectTime; 1645 LARGE_INTEGER DisconnectTime; 1646 LARGE_INTEGER LastInputTime; 1647 LARGE_INTEGER LogonTime; 1648 LARGE_INTEGER CurrentTime; 1649 1650 } GA_WTSINFOA; 1651 1652 GuestUserList *qmp_guest_get_users(Error **err) 1653 { 1654 #if (_WIN32_WINNT >= 0x0600) 1655 #define QGA_NANOSECONDS 10000000 1656 1657 GHashTable *cache = NULL; 1658 GuestUserList *head = NULL, *cur_item = NULL; 1659 1660 DWORD buffer_size = 0, count = 0, i = 0; 1661 GA_WTSINFOA *info = NULL; 1662 WTS_SESSION_INFOA *entries = NULL; 1663 GuestUserList *item = NULL; 1664 GuestUser *user = NULL; 1665 gpointer value = NULL; 1666 INT64 login = 0; 1667 double login_time = 0; 1668 1669 cache = g_hash_table_new(g_str_hash, g_str_equal); 1670 1671 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) { 1672 for (i = 0; i < count; ++i) { 1673 buffer_size = 0; 1674 info = NULL; 1675 if (WTSQuerySessionInformationA( 1676 NULL, 1677 entries[i].SessionId, 1678 WTSSessionInfo, 1679 (LPSTR *)&info, 1680 &buffer_size 1681 )) { 1682 1683 if (strlen(info->UserName) == 0) { 1684 WTSFreeMemory(info); 1685 continue; 1686 } 1687 1688 login = info->LogonTime.QuadPart; 1689 login -= W32_FT_OFFSET; 1690 login_time = ((double)login) / QGA_NANOSECONDS; 1691 1692 if (g_hash_table_contains(cache, info->UserName)) { 1693 value = g_hash_table_lookup(cache, info->UserName); 1694 user = (GuestUser *)value; 1695 if (user->login_time > login_time) { 1696 user->login_time = login_time; 1697 } 1698 } else { 1699 item = g_new0(GuestUserList, 1); 1700 item->value = g_new0(GuestUser, 1); 1701 1702 item->value->user = g_strdup(info->UserName); 1703 item->value->domain = g_strdup(info->Domain); 1704 item->value->has_domain = true; 1705 1706 item->value->login_time = login_time; 1707 1708 g_hash_table_add(cache, item->value->user); 1709 1710 if (!cur_item) { 1711 head = cur_item = item; 1712 } else { 1713 cur_item->next = item; 1714 cur_item = item; 1715 } 1716 } 1717 } 1718 WTSFreeMemory(info); 1719 } 1720 WTSFreeMemory(entries); 1721 } 1722 g_hash_table_destroy(cache); 1723 return head; 1724 #else 1725 error_setg(err, QERR_UNSUPPORTED); 1726 return NULL; 1727 #endif 1728 } 1729 1730 typedef struct _ga_matrix_lookup_t { 1731 int major; 1732 int minor; 1733 char const *version; 1734 char const *version_id; 1735 } ga_matrix_lookup_t; 1736 1737 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = { 1738 { 1739 /* Desktop editions */ 1740 { 5, 0, "Microsoft Windows 2000", "2000"}, 1741 { 5, 1, "Microsoft Windows XP", "xp"}, 1742 { 6, 0, "Microsoft Windows Vista", "vista"}, 1743 { 6, 1, "Microsoft Windows 7" "7"}, 1744 { 6, 2, "Microsoft Windows 8", "8"}, 1745 { 6, 3, "Microsoft Windows 8.1", "8.1"}, 1746 {10, 0, "Microsoft Windows 10", "10"}, 1747 { 0, 0, 0} 1748 },{ 1749 /* Server editions */ 1750 { 5, 2, "Microsoft Windows Server 2003", "2003"}, 1751 { 6, 0, "Microsoft Windows Server 2008", "2008"}, 1752 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"}, 1753 { 6, 2, "Microsoft Windows Server 2012", "2012"}, 1754 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"}, 1755 {10, 0, "Microsoft Windows Server 2016", "2016"}, 1756 { 0, 0, 0}, 1757 { 0, 0, 0} 1758 } 1759 }; 1760 1761 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp) 1762 { 1763 typedef NTSTATUS(WINAPI * rtl_get_version_t)( 1764 RTL_OSVERSIONINFOEXW *os_version_info_ex); 1765 1766 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW); 1767 1768 HMODULE module = GetModuleHandle("ntdll"); 1769 PVOID fun = GetProcAddress(module, "RtlGetVersion"); 1770 if (fun == NULL) { 1771 error_setg(errp, QERR_QGA_COMMAND_FAILED, 1772 "Failed to get address of RtlGetVersion"); 1773 return; 1774 } 1775 1776 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun; 1777 rtl_get_version(info); 1778 return; 1779 } 1780 1781 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id) 1782 { 1783 DWORD major = os_version->dwMajorVersion; 1784 DWORD minor = os_version->dwMinorVersion; 1785 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION); 1786 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx]; 1787 while (table->version != NULL) { 1788 if (major == table->major && minor == table->minor) { 1789 if (id) { 1790 return g_strdup(table->version_id); 1791 } else { 1792 return g_strdup(table->version); 1793 } 1794 } 1795 ++table; 1796 } 1797 slog("failed to lookup Windows version: major=%lu, minor=%lu", 1798 major, minor); 1799 return g_strdup("N/A"); 1800 } 1801 1802 static char *ga_get_win_product_name(Error **errp) 1803 { 1804 HKEY key = NULL; 1805 DWORD size = 128; 1806 char *result = g_malloc0(size); 1807 LONG err = ERROR_SUCCESS; 1808 1809 err = RegOpenKeyA(HKEY_LOCAL_MACHINE, 1810 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion", 1811 &key); 1812 if (err != ERROR_SUCCESS) { 1813 error_setg_win32(errp, err, "failed to open registry key"); 1814 goto fail; 1815 } 1816 1817 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 1818 (LPBYTE)result, &size); 1819 if (err == ERROR_MORE_DATA) { 1820 slog("ProductName longer than expected (%lu bytes), retrying", 1821 size); 1822 g_free(result); 1823 result = NULL; 1824 if (size > 0) { 1825 result = g_malloc0(size); 1826 err = RegQueryValueExA(key, "ProductName", NULL, NULL, 1827 (LPBYTE)result, &size); 1828 } 1829 } 1830 if (err != ERROR_SUCCESS) { 1831 error_setg_win32(errp, err, "failed to retrive ProductName"); 1832 goto fail; 1833 } 1834 1835 return result; 1836 1837 fail: 1838 g_free(result); 1839 return NULL; 1840 } 1841 1842 static char *ga_get_current_arch(void) 1843 { 1844 SYSTEM_INFO info; 1845 GetNativeSystemInfo(&info); 1846 char *result = NULL; 1847 switch (info.wProcessorArchitecture) { 1848 case PROCESSOR_ARCHITECTURE_AMD64: 1849 result = g_strdup("x86_64"); 1850 break; 1851 case PROCESSOR_ARCHITECTURE_ARM: 1852 result = g_strdup("arm"); 1853 break; 1854 case PROCESSOR_ARCHITECTURE_IA64: 1855 result = g_strdup("ia64"); 1856 break; 1857 case PROCESSOR_ARCHITECTURE_INTEL: 1858 result = g_strdup("x86"); 1859 break; 1860 case PROCESSOR_ARCHITECTURE_UNKNOWN: 1861 default: 1862 slog("unknown processor architecture 0x%0x", 1863 info.wProcessorArchitecture); 1864 result = g_strdup("unknown"); 1865 break; 1866 } 1867 return result; 1868 } 1869 1870 GuestOSInfo *qmp_guest_get_osinfo(Error **errp) 1871 { 1872 Error *local_err = NULL; 1873 OSVERSIONINFOEXW os_version = {0}; 1874 bool server; 1875 char *product_name; 1876 GuestOSInfo *info; 1877 1878 ga_get_win_version(&os_version, &local_err); 1879 if (local_err) { 1880 error_propagate(errp, local_err); 1881 return NULL; 1882 } 1883 1884 server = os_version.wProductType != VER_NT_WORKSTATION; 1885 product_name = ga_get_win_product_name(&local_err); 1886 if (product_name == NULL) { 1887 error_propagate(errp, local_err); 1888 return NULL; 1889 } 1890 1891 info = g_new0(GuestOSInfo, 1); 1892 1893 info->has_kernel_version = true; 1894 info->kernel_version = g_strdup_printf("%lu.%lu", 1895 os_version.dwMajorVersion, 1896 os_version.dwMinorVersion); 1897 info->has_kernel_release = true; 1898 info->kernel_release = g_strdup_printf("%lu", 1899 os_version.dwBuildNumber); 1900 info->has_machine = true; 1901 info->machine = ga_get_current_arch(); 1902 1903 info->has_id = true; 1904 info->id = g_strdup("mswindows"); 1905 info->has_name = true; 1906 info->name = g_strdup("Microsoft Windows"); 1907 info->has_pretty_name = true; 1908 info->pretty_name = product_name; 1909 info->has_version = true; 1910 info->version = ga_get_win_name(&os_version, false); 1911 info->has_version_id = true; 1912 info->version_id = ga_get_win_name(&os_version, true); 1913 info->has_variant = true; 1914 info->variant = g_strdup(server ? "server" : "client"); 1915 info->has_variant_id = true; 1916 info->variant_id = g_strdup(server ? "server" : "client"); 1917 1918 return info; 1919 } 1920