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 #include "qemu/osdep.h" 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 <initguid.h> 26 #endif 27 #include <lm.h> 28 29 #include "qga/guest-agent-core.h" 30 #include "qga/vss-win32.h" 31 #include "qga-qmp-commands.h" 32 #include "qapi/qmp/qerror.h" 33 #include "qemu/queue.h" 34 #include "qemu/host-utils.h" 35 #include "qemu/base64.h" 36 37 #ifndef SHTDN_REASON_FLAG_PLANNED 38 #define SHTDN_REASON_FLAG_PLANNED 0x80000000 39 #endif 40 41 /* multiple of 100 nanoseconds elapsed between windows baseline 42 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ 43 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ 44 (365 * (1970 - 1601) + \ 45 (1970 - 1601) / 4 - 3)) 46 47 #define INVALID_SET_FILE_POINTER ((DWORD)-1) 48 49 typedef struct GuestFileHandle { 50 int64_t id; 51 HANDLE fh; 52 QTAILQ_ENTRY(GuestFileHandle) next; 53 } GuestFileHandle; 54 55 static struct { 56 QTAILQ_HEAD(, GuestFileHandle) filehandles; 57 } guest_file_state = { 58 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles), 59 }; 60 61 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA) 62 63 typedef struct OpenFlags { 64 const char *forms; 65 DWORD desired_access; 66 DWORD creation_disposition; 67 } OpenFlags; 68 static OpenFlags guest_file_open_modes[] = { 69 {"r", GENERIC_READ, OPEN_EXISTING}, 70 {"rb", GENERIC_READ, OPEN_EXISTING}, 71 {"w", GENERIC_WRITE, CREATE_ALWAYS}, 72 {"wb", GENERIC_WRITE, CREATE_ALWAYS}, 73 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS }, 74 {"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 75 {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 76 {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING}, 77 {"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 78 {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 79 {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS}, 80 {"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 81 {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }, 82 {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS } 83 }; 84 85 static OpenFlags *find_open_flag(const char *mode_str) 86 { 87 int mode; 88 Error **errp = NULL; 89 90 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) { 91 OpenFlags *flags = guest_file_open_modes + mode; 92 93 if (strcmp(flags->forms, mode_str) == 0) { 94 return flags; 95 } 96 } 97 98 error_setg(errp, "invalid file open mode '%s'", mode_str); 99 return NULL; 100 } 101 102 static int64_t guest_file_handle_add(HANDLE fh, Error **errp) 103 { 104 GuestFileHandle *gfh; 105 int64_t handle; 106 107 handle = ga_get_fd_handle(ga_state, errp); 108 if (handle < 0) { 109 return -1; 110 } 111 gfh = g_new0(GuestFileHandle, 1); 112 gfh->id = handle; 113 gfh->fh = fh; 114 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next); 115 116 return handle; 117 } 118 119 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp) 120 { 121 GuestFileHandle *gfh; 122 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) { 123 if (gfh->id == id) { 124 return gfh; 125 } 126 } 127 error_setg(errp, "handle '%" PRId64 "' has not been found", id); 128 return NULL; 129 } 130 131 static void handle_set_nonblocking(HANDLE fh) 132 { 133 DWORD file_type, pipe_state; 134 file_type = GetFileType(fh); 135 if (file_type != FILE_TYPE_PIPE) { 136 return; 137 } 138 /* If file_type == FILE_TYPE_PIPE, according to MSDN 139 * the specified file is socket or named pipe */ 140 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL, 141 NULL, NULL, NULL, 0)) { 142 return; 143 } 144 /* The fd is named pipe fd */ 145 if (pipe_state & PIPE_NOWAIT) { 146 return; 147 } 148 149 pipe_state |= PIPE_NOWAIT; 150 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL); 151 } 152 153 int64_t qmp_guest_file_open(const char *path, bool has_mode, 154 const char *mode, Error **errp) 155 { 156 int64_t fd; 157 HANDLE fh; 158 HANDLE templ_file = NULL; 159 DWORD share_mode = FILE_SHARE_READ; 160 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL; 161 LPSECURITY_ATTRIBUTES sa_attr = NULL; 162 OpenFlags *guest_flags; 163 164 if (!has_mode) { 165 mode = "r"; 166 } 167 slog("guest-file-open called, filepath: %s, mode: %s", path, mode); 168 guest_flags = find_open_flag(mode); 169 if (guest_flags == NULL) { 170 error_setg(errp, "invalid file open mode"); 171 return -1; 172 } 173 174 fh = CreateFile(path, guest_flags->desired_access, share_mode, sa_attr, 175 guest_flags->creation_disposition, flags_and_attr, 176 templ_file); 177 if (fh == INVALID_HANDLE_VALUE) { 178 error_setg_win32(errp, GetLastError(), "failed to open file '%s'", 179 path); 180 return -1; 181 } 182 183 /* set fd non-blocking to avoid common use cases (like reading from a 184 * named pipe) from hanging the agent 185 */ 186 handle_set_nonblocking(fh); 187 188 fd = guest_file_handle_add(fh, errp); 189 if (fd < 0) { 190 CloseHandle(fh); 191 error_setg(errp, "failed to add handle to qmp handle table"); 192 return -1; 193 } 194 195 slog("guest-file-open, handle: % " PRId64, fd); 196 return fd; 197 } 198 199 void qmp_guest_file_close(int64_t handle, Error **errp) 200 { 201 bool ret; 202 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 203 slog("guest-file-close called, handle: %" PRId64, handle); 204 if (gfh == NULL) { 205 return; 206 } 207 ret = CloseHandle(gfh->fh); 208 if (!ret) { 209 error_setg_win32(errp, GetLastError(), "failed close handle"); 210 return; 211 } 212 213 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next); 214 g_free(gfh); 215 } 216 217 static void acquire_privilege(const char *name, Error **errp) 218 { 219 HANDLE token = NULL; 220 TOKEN_PRIVILEGES priv; 221 Error *local_err = NULL; 222 223 if (OpenProcessToken(GetCurrentProcess(), 224 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token)) 225 { 226 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { 227 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 228 "no luid for requested privilege"); 229 goto out; 230 } 231 232 priv.PrivilegeCount = 1; 233 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; 234 235 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { 236 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 237 "unable to acquire requested privilege"); 238 goto out; 239 } 240 241 } else { 242 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 243 "failed to open privilege token"); 244 } 245 246 out: 247 if (token) { 248 CloseHandle(token); 249 } 250 error_propagate(errp, local_err); 251 } 252 253 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, 254 Error **errp) 255 { 256 Error *local_err = NULL; 257 258 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); 259 if (!thread) { 260 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 261 "failed to dispatch asynchronous command"); 262 error_propagate(errp, local_err); 263 } 264 } 265 266 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) 267 { 268 Error *local_err = NULL; 269 UINT shutdown_flag = EWX_FORCE; 270 271 slog("guest-shutdown called, mode: %s", mode); 272 273 if (!has_mode || strcmp(mode, "powerdown") == 0) { 274 shutdown_flag |= EWX_POWEROFF; 275 } else if (strcmp(mode, "halt") == 0) { 276 shutdown_flag |= EWX_SHUTDOWN; 277 } else if (strcmp(mode, "reboot") == 0) { 278 shutdown_flag |= EWX_REBOOT; 279 } else { 280 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode", 281 "halt|powerdown|reboot"); 282 return; 283 } 284 285 /* Request a shutdown privilege, but try to shut down the system 286 anyway. */ 287 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 288 if (local_err) { 289 error_propagate(errp, local_err); 290 return; 291 } 292 293 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { 294 slog("guest-shutdown failed: %lu", GetLastError()); 295 error_setg(errp, QERR_UNDEFINED_ERROR); 296 } 297 } 298 299 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, 300 int64_t count, Error **errp) 301 { 302 GuestFileRead *read_data = NULL; 303 guchar *buf; 304 HANDLE fh; 305 bool is_ok; 306 DWORD read_count; 307 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 308 309 if (!gfh) { 310 return NULL; 311 } 312 if (!has_count) { 313 count = QGA_READ_COUNT_DEFAULT; 314 } else if (count < 0) { 315 error_setg(errp, "value '%" PRId64 316 "' is invalid for argument count", count); 317 return NULL; 318 } 319 320 fh = gfh->fh; 321 buf = g_malloc0(count+1); 322 is_ok = ReadFile(fh, buf, count, &read_count, NULL); 323 if (!is_ok) { 324 error_setg_win32(errp, GetLastError(), "failed to read file"); 325 slog("guest-file-read failed, handle %" PRId64, handle); 326 } else { 327 buf[read_count] = 0; 328 read_data = g_new0(GuestFileRead, 1); 329 read_data->count = (size_t)read_count; 330 read_data->eof = read_count == 0; 331 332 if (read_count != 0) { 333 read_data->buf_b64 = g_base64_encode(buf, read_count); 334 } 335 } 336 g_free(buf); 337 338 return read_data; 339 } 340 341 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, 342 bool has_count, int64_t count, 343 Error **errp) 344 { 345 GuestFileWrite *write_data = NULL; 346 guchar *buf; 347 gsize buf_len; 348 bool is_ok; 349 DWORD write_count; 350 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 351 HANDLE fh; 352 353 if (!gfh) { 354 return NULL; 355 } 356 fh = gfh->fh; 357 buf = qbase64_decode(buf_b64, -1, &buf_len, errp); 358 if (!buf) { 359 return NULL; 360 } 361 362 if (!has_count) { 363 count = buf_len; 364 } else if (count < 0 || count > buf_len) { 365 error_setg(errp, "value '%" PRId64 366 "' is invalid for argument count", count); 367 goto done; 368 } 369 370 is_ok = WriteFile(fh, buf, count, &write_count, NULL); 371 if (!is_ok) { 372 error_setg_win32(errp, GetLastError(), "failed to write to file"); 373 slog("guest-file-write-failed, handle: %" PRId64, handle); 374 } else { 375 write_data = g_new0(GuestFileWrite, 1); 376 write_data->count = (size_t) write_count; 377 } 378 379 done: 380 g_free(buf); 381 return write_data; 382 } 383 384 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, 385 GuestFileWhence *whence_code, 386 Error **errp) 387 { 388 GuestFileHandle *gfh; 389 GuestFileSeek *seek_data; 390 HANDLE fh; 391 LARGE_INTEGER new_pos, off_pos; 392 off_pos.QuadPart = offset; 393 BOOL res; 394 int whence; 395 Error *err = NULL; 396 397 gfh = guest_file_handle_find(handle, errp); 398 if (!gfh) { 399 return NULL; 400 } 401 402 /* We stupidly exposed 'whence':'int' in our qapi */ 403 whence = ga_parse_whence(whence_code, &err); 404 if (err) { 405 error_propagate(errp, err); 406 return NULL; 407 } 408 409 fh = gfh->fh; 410 res = SetFilePointerEx(fh, off_pos, &new_pos, whence); 411 if (!res) { 412 error_setg_win32(errp, GetLastError(), "failed to seek file"); 413 return NULL; 414 } 415 seek_data = g_new0(GuestFileSeek, 1); 416 seek_data->position = new_pos.QuadPart; 417 return seek_data; 418 } 419 420 void qmp_guest_file_flush(int64_t handle, Error **errp) 421 { 422 HANDLE fh; 423 GuestFileHandle *gfh = guest_file_handle_find(handle, errp); 424 if (!gfh) { 425 return; 426 } 427 428 fh = gfh->fh; 429 if (!FlushFileBuffers(fh)) { 430 error_setg_win32(errp, GetLastError(), "failed to flush file"); 431 } 432 } 433 434 #ifdef CONFIG_QGA_NTDDSCSI 435 436 static STORAGE_BUS_TYPE win2qemu[] = { 437 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN, 438 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI, 439 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE, 440 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE, 441 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394, 442 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA, 443 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA, 444 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB, 445 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID, 446 #if (_WIN32_WINNT >= 0x0600) 447 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI, 448 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS, 449 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA, 450 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD, 451 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC, 452 #endif 453 #if (_WIN32_WINNT >= 0x0601) 454 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL, 455 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL, 456 #endif 457 }; 458 459 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus) 460 { 461 if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) { 462 return GUEST_DISK_BUS_TYPE_UNKNOWN; 463 } 464 return win2qemu[(int)bus]; 465 } 466 467 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME, 468 0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2, 469 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b); 470 471 static GuestPCIAddress *get_pci_info(char *guid, Error **errp) 472 { 473 HDEVINFO dev_info; 474 SP_DEVINFO_DATA dev_info_data; 475 DWORD size = 0; 476 int i; 477 char dev_name[MAX_PATH]; 478 char *buffer = NULL; 479 GuestPCIAddress *pci = NULL; 480 char *name = g_strdup(&guid[4]); 481 482 if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) { 483 error_setg_win32(errp, GetLastError(), "failed to get dos device name"); 484 goto out; 485 } 486 487 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0, 488 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 489 if (dev_info == INVALID_HANDLE_VALUE) { 490 error_setg_win32(errp, GetLastError(), "failed to get devices tree"); 491 goto out; 492 } 493 494 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA); 495 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) { 496 DWORD addr, bus, slot, func, dev, data, size2; 497 while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 498 SPDRP_PHYSICAL_DEVICE_OBJECT_NAME, 499 &data, (PBYTE)buffer, size, 500 &size2)) { 501 size = MAX(size, size2); 502 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) { 503 g_free(buffer); 504 /* Double the size to avoid problems on 505 * W2k MBCS systems per KB 888609. 506 * https://support.microsoft.com/en-us/kb/259695 */ 507 buffer = g_malloc(size * 2); 508 } else { 509 error_setg_win32(errp, GetLastError(), 510 "failed to get device name"); 511 goto out; 512 } 513 } 514 515 if (g_strcmp0(buffer, dev_name)) { 516 continue; 517 } 518 519 /* There is no need to allocate buffer in the next functions. The size 520 * is known and ULONG according to 521 * https://support.microsoft.com/en-us/kb/253232 522 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx 523 */ 524 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 525 SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) { 526 break; 527 } 528 529 /* The function retrieves the device's address. This value will be 530 * transformed into device function and number */ 531 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 532 SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) { 533 break; 534 } 535 536 /* This call returns UINumber of DEVICE_CAPABILITIES structure. 537 * This number is typically a user-perceived slot number. */ 538 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data, 539 SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) { 540 break; 541 } 542 543 /* SetupApi gives us the same information as driver with 544 * IoGetDeviceProperty. According to Microsoft 545 * https://support.microsoft.com/en-us/kb/253232 546 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF); 547 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF); 548 * SPDRP_ADDRESS is propertyAddress, so we do the same.*/ 549 550 func = addr & 0x0000FFFF; 551 dev = (addr >> 16) & 0x0000FFFF; 552 pci = g_malloc0(sizeof(*pci)); 553 pci->domain = dev; 554 pci->slot = slot; 555 pci->function = func; 556 pci->bus = bus; 557 break; 558 } 559 out: 560 g_free(buffer); 561 g_free(name); 562 return pci; 563 } 564 565 static int get_disk_bus_type(HANDLE vol_h, Error **errp) 566 { 567 STORAGE_PROPERTY_QUERY query; 568 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf; 569 DWORD received; 570 571 dev_desc = &buf; 572 dev_desc->Size = sizeof(buf); 573 query.PropertyId = StorageDeviceProperty; 574 query.QueryType = PropertyStandardQuery; 575 576 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query, 577 sizeof(STORAGE_PROPERTY_QUERY), dev_desc, 578 dev_desc->Size, &received, NULL)) { 579 error_setg_win32(errp, GetLastError(), "failed to get bus type"); 580 return -1; 581 } 582 583 return dev_desc->BusType; 584 } 585 586 /* VSS provider works with volumes, thus there is no difference if 587 * the volume consist of spanned disks. Info about the first disk in the 588 * volume is returned for the spanned disk group (LVM) */ 589 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 590 { 591 GuestDiskAddressList *list = NULL; 592 GuestDiskAddress *disk; 593 SCSI_ADDRESS addr, *scsi_ad; 594 DWORD len; 595 int bus; 596 HANDLE vol_h; 597 598 scsi_ad = &addr; 599 char *name = g_strndup(guid, strlen(guid)-1); 600 601 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING, 602 0, NULL); 603 if (vol_h == INVALID_HANDLE_VALUE) { 604 error_setg_win32(errp, GetLastError(), "failed to open volume"); 605 goto out_free; 606 } 607 608 bus = get_disk_bus_type(vol_h, errp); 609 if (bus < 0) { 610 goto out_close; 611 } 612 613 disk = g_malloc0(sizeof(*disk)); 614 disk->bus_type = find_bus_type(bus); 615 if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID 616 #if (_WIN32_WINNT >= 0x0600) 617 /* This bus type is not supported before Windows Server 2003 SP1 */ 618 || bus == BusTypeSas 619 #endif 620 ) { 621 /* We are able to use the same ioctls for different bus types 622 * according to Microsoft docs 623 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */ 624 if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad, 625 sizeof(SCSI_ADDRESS), &len, NULL)) { 626 disk->unit = addr.Lun; 627 disk->target = addr.TargetId; 628 disk->bus = addr.PathId; 629 disk->pci_controller = get_pci_info(name, errp); 630 } 631 /* We do not set error in this case, because we still have enough 632 * information about volume. */ 633 } else { 634 disk->pci_controller = NULL; 635 } 636 637 list = g_malloc0(sizeof(*list)); 638 list->value = disk; 639 list->next = NULL; 640 out_close: 641 CloseHandle(vol_h); 642 out_free: 643 g_free(name); 644 return list; 645 } 646 647 #else 648 649 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp) 650 { 651 return NULL; 652 } 653 654 #endif /* CONFIG_QGA_NTDDSCSI */ 655 656 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp) 657 { 658 DWORD info_size; 659 char mnt, *mnt_point; 660 char fs_name[32]; 661 char vol_info[MAX_PATH+1]; 662 size_t len; 663 GuestFilesystemInfo *fs = NULL; 664 665 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size); 666 if (GetLastError() != ERROR_MORE_DATA) { 667 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 668 return NULL; 669 } 670 671 mnt_point = g_malloc(info_size + 1); 672 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size, 673 &info_size)) { 674 error_setg_win32(errp, GetLastError(), "failed to get volume name"); 675 goto free; 676 } 677 678 len = strlen(mnt_point); 679 mnt_point[len] = '\\'; 680 mnt_point[len+1] = 0; 681 if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL, 682 NULL, (LPSTR)&fs_name, sizeof(fs_name))) { 683 if (GetLastError() != ERROR_NOT_READY) { 684 error_setg_win32(errp, GetLastError(), "failed to get volume info"); 685 } 686 goto free; 687 } 688 689 fs_name[sizeof(fs_name) - 1] = 0; 690 fs = g_malloc(sizeof(*fs)); 691 fs->name = g_strdup(guid); 692 if (len == 0) { 693 fs->mountpoint = g_strdup("System Reserved"); 694 } else { 695 fs->mountpoint = g_strndup(mnt_point, len); 696 } 697 fs->type = g_strdup(fs_name); 698 fs->disk = build_guest_disk_info(guid, errp); 699 free: 700 g_free(mnt_point); 701 return fs; 702 } 703 704 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) 705 { 706 HANDLE vol_h; 707 GuestFilesystemInfoList *new, *ret = NULL; 708 char guid[256]; 709 710 vol_h = FindFirstVolume(guid, sizeof(guid)); 711 if (vol_h == INVALID_HANDLE_VALUE) { 712 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 713 return NULL; 714 } 715 716 do { 717 GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp); 718 if (info == NULL) { 719 continue; 720 } 721 new = g_malloc(sizeof(*ret)); 722 new->value = info; 723 new->next = ret; 724 ret = new; 725 } while (FindNextVolume(vol_h, guid, sizeof(guid))); 726 727 if (GetLastError() != ERROR_NO_MORE_FILES) { 728 error_setg_win32(errp, GetLastError(), "failed to find next volume"); 729 } 730 731 FindVolumeClose(vol_h); 732 return ret; 733 } 734 735 /* 736 * Return status of freeze/thaw 737 */ 738 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) 739 { 740 if (!vss_initialized()) { 741 error_setg(errp, QERR_UNSUPPORTED); 742 return 0; 743 } 744 745 if (ga_is_frozen(ga_state)) { 746 return GUEST_FSFREEZE_STATUS_FROZEN; 747 } 748 749 return GUEST_FSFREEZE_STATUS_THAWED; 750 } 751 752 /* 753 * Freeze local file systems using Volume Shadow-copy Service. 754 * The frozen state is limited for up to 10 seconds by VSS. 755 */ 756 int64_t qmp_guest_fsfreeze_freeze(Error **errp) 757 { 758 int i; 759 Error *local_err = NULL; 760 761 if (!vss_initialized()) { 762 error_setg(errp, QERR_UNSUPPORTED); 763 return 0; 764 } 765 766 slog("guest-fsfreeze called"); 767 768 /* cannot risk guest agent blocking itself on a write in this state */ 769 ga_set_frozen(ga_state); 770 771 qga_vss_fsfreeze(&i, &local_err, true); 772 if (local_err) { 773 error_propagate(errp, local_err); 774 goto error; 775 } 776 777 return i; 778 779 error: 780 local_err = NULL; 781 qmp_guest_fsfreeze_thaw(&local_err); 782 if (local_err) { 783 g_debug("cleanup thaw: %s", error_get_pretty(local_err)); 784 error_free(local_err); 785 } 786 return 0; 787 } 788 789 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, 790 strList *mountpoints, 791 Error **errp) 792 { 793 error_setg(errp, QERR_UNSUPPORTED); 794 795 return 0; 796 } 797 798 /* 799 * Thaw local file systems using Volume Shadow-copy Service. 800 */ 801 int64_t qmp_guest_fsfreeze_thaw(Error **errp) 802 { 803 int i; 804 805 if (!vss_initialized()) { 806 error_setg(errp, QERR_UNSUPPORTED); 807 return 0; 808 } 809 810 qga_vss_fsfreeze(&i, errp, false); 811 812 ga_unset_frozen(ga_state); 813 return i; 814 } 815 816 static void guest_fsfreeze_cleanup(void) 817 { 818 Error *err = NULL; 819 820 if (!vss_initialized()) { 821 return; 822 } 823 824 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { 825 qmp_guest_fsfreeze_thaw(&err); 826 if (err) { 827 slog("failed to clean up frozen filesystems: %s", 828 error_get_pretty(err)); 829 error_free(err); 830 } 831 } 832 833 vss_deinit(true); 834 } 835 836 /* 837 * Walk list of mounted file systems in the guest, and discard unused 838 * areas. 839 */ 840 GuestFilesystemTrimResponse * 841 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) 842 { 843 GuestFilesystemTrimResponse *resp; 844 HANDLE handle; 845 WCHAR guid[MAX_PATH] = L""; 846 847 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid)); 848 if (handle == INVALID_HANDLE_VALUE) { 849 error_setg_win32(errp, GetLastError(), "failed to find any volume"); 850 return NULL; 851 } 852 853 resp = g_new0(GuestFilesystemTrimResponse, 1); 854 855 do { 856 GuestFilesystemTrimResult *res; 857 GuestFilesystemTrimResultList *list; 858 PWCHAR uc_path; 859 DWORD char_count = 0; 860 char *path, *out; 861 GError *gerr = NULL; 862 gchar * argv[4]; 863 864 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count); 865 866 if (GetLastError() != ERROR_MORE_DATA) { 867 continue; 868 } 869 if (GetDriveTypeW(guid) != DRIVE_FIXED) { 870 continue; 871 } 872 873 uc_path = g_malloc(sizeof(WCHAR) * char_count); 874 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count, 875 &char_count) || !*uc_path) { 876 /* strange, but this condition could be faced even with size == 2 */ 877 g_free(uc_path); 878 continue; 879 } 880 881 res = g_new0(GuestFilesystemTrimResult, 1); 882 883 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr); 884 885 g_free(uc_path); 886 887 if (!path) { 888 res->has_error = true; 889 res->error = g_strdup(gerr->message); 890 g_error_free(gerr); 891 break; 892 } 893 894 res->path = path; 895 896 list = g_new0(GuestFilesystemTrimResultList, 1); 897 list->value = res; 898 list->next = resp->paths; 899 900 resp->paths = list; 901 902 memset(argv, 0, sizeof(argv)); 903 argv[0] = (gchar *)"defrag.exe"; 904 argv[1] = (gchar *)"/L"; 905 argv[2] = path; 906 907 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, 908 &out /* stdout */, NULL /* stdin */, 909 NULL, &gerr)) { 910 res->has_error = true; 911 res->error = g_strdup(gerr->message); 912 g_error_free(gerr); 913 } else { 914 /* defrag.exe is UGLY. Exit code is ALWAYS zero. 915 Error is reported in the output with something like 916 (x89000020) etc code in the stdout */ 917 918 int i; 919 gchar **lines = g_strsplit(out, "\r\n", 0); 920 g_free(out); 921 922 for (i = 0; lines[i] != NULL; i++) { 923 if (g_strstr_len(lines[i], -1, "(0x") == NULL) { 924 continue; 925 } 926 res->has_error = true; 927 res->error = g_strdup(lines[i]); 928 break; 929 } 930 g_strfreev(lines); 931 } 932 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid))); 933 934 FindVolumeClose(handle); 935 return resp; 936 } 937 938 typedef enum { 939 GUEST_SUSPEND_MODE_DISK, 940 GUEST_SUSPEND_MODE_RAM 941 } GuestSuspendMode; 942 943 static void check_suspend_mode(GuestSuspendMode mode, Error **errp) 944 { 945 SYSTEM_POWER_CAPABILITIES sys_pwr_caps; 946 Error *local_err = NULL; 947 948 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); 949 if (!GetPwrCapabilities(&sys_pwr_caps)) { 950 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 951 "failed to determine guest suspend capabilities"); 952 goto out; 953 } 954 955 switch (mode) { 956 case GUEST_SUSPEND_MODE_DISK: 957 if (!sys_pwr_caps.SystemS4) { 958 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 959 "suspend-to-disk not supported by OS"); 960 } 961 break; 962 case GUEST_SUSPEND_MODE_RAM: 963 if (!sys_pwr_caps.SystemS3) { 964 error_setg(&local_err, QERR_QGA_COMMAND_FAILED, 965 "suspend-to-ram not supported by OS"); 966 } 967 break; 968 default: 969 error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode", 970 "GuestSuspendMode"); 971 } 972 973 out: 974 error_propagate(errp, local_err); 975 } 976 977 static DWORD WINAPI do_suspend(LPVOID opaque) 978 { 979 GuestSuspendMode *mode = opaque; 980 DWORD ret = 0; 981 982 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { 983 slog("failed to suspend guest, %lu", GetLastError()); 984 ret = -1; 985 } 986 g_free(mode); 987 return ret; 988 } 989 990 void qmp_guest_suspend_disk(Error **errp) 991 { 992 Error *local_err = NULL; 993 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 994 995 *mode = GUEST_SUSPEND_MODE_DISK; 996 check_suspend_mode(*mode, &local_err); 997 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 998 execute_async(do_suspend, mode, &local_err); 999 1000 if (local_err) { 1001 error_propagate(errp, local_err); 1002 g_free(mode); 1003 } 1004 } 1005 1006 void qmp_guest_suspend_ram(Error **errp) 1007 { 1008 Error *local_err = NULL; 1009 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1); 1010 1011 *mode = GUEST_SUSPEND_MODE_RAM; 1012 check_suspend_mode(*mode, &local_err); 1013 acquire_privilege(SE_SHUTDOWN_NAME, &local_err); 1014 execute_async(do_suspend, mode, &local_err); 1015 1016 if (local_err) { 1017 error_propagate(errp, local_err); 1018 g_free(mode); 1019 } 1020 } 1021 1022 void qmp_guest_suspend_hybrid(Error **errp) 1023 { 1024 error_setg(errp, QERR_UNSUPPORTED); 1025 } 1026 1027 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) 1028 { 1029 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL; 1030 ULONG adptr_addrs_len = 0; 1031 DWORD ret; 1032 1033 /* Call the first time to get the adptr_addrs_len. */ 1034 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1035 NULL, adptr_addrs, &adptr_addrs_len); 1036 1037 adptr_addrs = g_malloc(adptr_addrs_len); 1038 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, 1039 NULL, adptr_addrs, &adptr_addrs_len); 1040 if (ret != ERROR_SUCCESS) { 1041 error_setg_win32(errp, ret, "failed to get adapters addresses"); 1042 g_free(adptr_addrs); 1043 adptr_addrs = NULL; 1044 } 1045 return adptr_addrs; 1046 } 1047 1048 static char *guest_wctomb_dup(WCHAR *wstr) 1049 { 1050 char *str; 1051 size_t i; 1052 1053 i = wcslen(wstr) + 1; 1054 str = g_malloc(i); 1055 WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK, 1056 wstr, -1, str, i, NULL, NULL); 1057 return str; 1058 } 1059 1060 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr, 1061 Error **errp) 1062 { 1063 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN]; 1064 DWORD len; 1065 int ret; 1066 1067 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET || 1068 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1069 len = sizeof(addr_str); 1070 ret = WSAAddressToString(ip_addr->Address.lpSockaddr, 1071 ip_addr->Address.iSockaddrLength, 1072 NULL, 1073 addr_str, 1074 &len); 1075 if (ret != 0) { 1076 error_setg_win32(errp, WSAGetLastError(), 1077 "failed address presentation form conversion"); 1078 return NULL; 1079 } 1080 return g_strdup(addr_str); 1081 } 1082 return NULL; 1083 } 1084 1085 #if (_WIN32_WINNT >= 0x0600) 1086 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1087 { 1088 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength 1089 * field to obtain the prefix. 1090 */ 1091 return ip_addr->OnLinkPrefixLength; 1092 } 1093 #else 1094 /* When using the Windows XP and 2003 build environment, do the best we can to 1095 * figure out the prefix. 1096 */ 1097 static IP_ADAPTER_INFO *guest_get_adapters_info(void) 1098 { 1099 IP_ADAPTER_INFO *adptr_info = NULL; 1100 ULONG adptr_info_len = 0; 1101 DWORD ret; 1102 1103 /* Call the first time to get the adptr_info_len. */ 1104 GetAdaptersInfo(adptr_info, &adptr_info_len); 1105 1106 adptr_info = g_malloc(adptr_info_len); 1107 ret = GetAdaptersInfo(adptr_info, &adptr_info_len); 1108 if (ret != ERROR_SUCCESS) { 1109 g_free(adptr_info); 1110 adptr_info = NULL; 1111 } 1112 return adptr_info; 1113 } 1114 1115 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr) 1116 { 1117 int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */ 1118 IP_ADAPTER_INFO *adptr_info, *info; 1119 IP_ADDR_STRING *ip; 1120 struct in_addr *p; 1121 1122 if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) { 1123 return prefix; 1124 } 1125 adptr_info = guest_get_adapters_info(); 1126 if (adptr_info == NULL) { 1127 return prefix; 1128 } 1129 1130 /* Match up the passed in ip_addr with one found in adaptr_info. 1131 * The matching one in adptr_info will have the netmask. 1132 */ 1133 p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr; 1134 for (info = adptr_info; info; info = info->Next) { 1135 for (ip = &info->IpAddressList; ip; ip = ip->Next) { 1136 if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) { 1137 prefix = ctpop32(inet_addr(ip->IpMask.String)); 1138 goto out; 1139 } 1140 } 1141 } 1142 out: 1143 g_free(adptr_info); 1144 return prefix; 1145 } 1146 #endif 1147 1148 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) 1149 { 1150 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr; 1151 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL; 1152 GuestNetworkInterfaceList *head = NULL, *cur_item = NULL; 1153 GuestIpAddressList *head_addr, *cur_addr; 1154 GuestNetworkInterfaceList *info; 1155 GuestIpAddressList *address_item = NULL; 1156 unsigned char *mac_addr; 1157 char *addr_str; 1158 WORD wsa_version; 1159 WSADATA wsa_data; 1160 int ret; 1161 1162 adptr_addrs = guest_get_adapters_addresses(errp); 1163 if (adptr_addrs == NULL) { 1164 return NULL; 1165 } 1166 1167 /* Make WSA APIs available. */ 1168 wsa_version = MAKEWORD(2, 2); 1169 ret = WSAStartup(wsa_version, &wsa_data); 1170 if (ret != 0) { 1171 error_setg_win32(errp, ret, "failed socket startup"); 1172 goto out; 1173 } 1174 1175 for (addr = adptr_addrs; addr; addr = addr->Next) { 1176 info = g_malloc0(sizeof(*info)); 1177 1178 if (cur_item == NULL) { 1179 head = cur_item = info; 1180 } else { 1181 cur_item->next = info; 1182 cur_item = info; 1183 } 1184 1185 info->value = g_malloc0(sizeof(*info->value)); 1186 info->value->name = guest_wctomb_dup(addr->FriendlyName); 1187 1188 if (addr->PhysicalAddressLength != 0) { 1189 mac_addr = addr->PhysicalAddress; 1190 1191 info->value->hardware_address = 1192 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x", 1193 (int) mac_addr[0], (int) mac_addr[1], 1194 (int) mac_addr[2], (int) mac_addr[3], 1195 (int) mac_addr[4], (int) mac_addr[5]); 1196 1197 info->value->has_hardware_address = true; 1198 } 1199 1200 head_addr = NULL; 1201 cur_addr = NULL; 1202 for (ip_addr = addr->FirstUnicastAddress; 1203 ip_addr; 1204 ip_addr = ip_addr->Next) { 1205 addr_str = guest_addr_to_str(ip_addr, errp); 1206 if (addr_str == NULL) { 1207 continue; 1208 } 1209 1210 address_item = g_malloc0(sizeof(*address_item)); 1211 1212 if (!cur_addr) { 1213 head_addr = cur_addr = address_item; 1214 } else { 1215 cur_addr->next = address_item; 1216 cur_addr = address_item; 1217 } 1218 1219 address_item->value = g_malloc0(sizeof(*address_item->value)); 1220 address_item->value->ip_address = addr_str; 1221 address_item->value->prefix = guest_ip_prefix(ip_addr); 1222 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) { 1223 address_item->value->ip_address_type = 1224 GUEST_IP_ADDRESS_TYPE_IPV4; 1225 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) { 1226 address_item->value->ip_address_type = 1227 GUEST_IP_ADDRESS_TYPE_IPV6; 1228 } 1229 } 1230 if (head_addr) { 1231 info->value->has_ip_addresses = true; 1232 info->value->ip_addresses = head_addr; 1233 } 1234 } 1235 WSACleanup(); 1236 out: 1237 g_free(adptr_addrs); 1238 return head; 1239 } 1240 1241 int64_t qmp_guest_get_time(Error **errp) 1242 { 1243 SYSTEMTIME ts = {0}; 1244 FILETIME tf; 1245 1246 GetSystemTime(&ts); 1247 if (ts.wYear < 1601 || ts.wYear > 30827) { 1248 error_setg(errp, "Failed to get time"); 1249 return -1; 1250 } 1251 1252 if (!SystemTimeToFileTime(&ts, &tf)) { 1253 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError()); 1254 return -1; 1255 } 1256 1257 return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) 1258 - W32_FT_OFFSET) * 100; 1259 } 1260 1261 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) 1262 { 1263 Error *local_err = NULL; 1264 SYSTEMTIME ts; 1265 FILETIME tf; 1266 LONGLONG time; 1267 1268 if (!has_time) { 1269 /* Unfortunately, Windows libraries don't provide an easy way to access 1270 * RTC yet: 1271 * 1272 * https://msdn.microsoft.com/en-us/library/aa908981.aspx 1273 */ 1274 error_setg(errp, "Time argument is required on this platform"); 1275 return; 1276 } 1277 1278 /* Validate time passed by user. */ 1279 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { 1280 error_setg(errp, "Time %" PRId64 "is invalid", time_ns); 1281 return; 1282 } 1283 1284 time = time_ns / 100 + W32_FT_OFFSET; 1285 1286 tf.dwLowDateTime = (DWORD) time; 1287 tf.dwHighDateTime = (DWORD) (time >> 32); 1288 1289 if (!FileTimeToSystemTime(&tf, &ts)) { 1290 error_setg(errp, "Failed to convert system time %d", 1291 (int)GetLastError()); 1292 return; 1293 } 1294 1295 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); 1296 if (local_err) { 1297 error_propagate(errp, local_err); 1298 return; 1299 } 1300 1301 if (!SetSystemTime(&ts)) { 1302 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); 1303 return; 1304 } 1305 } 1306 1307 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) 1308 { 1309 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr; 1310 DWORD length; 1311 GuestLogicalProcessorList *head, **link; 1312 Error *local_err = NULL; 1313 int64_t current; 1314 1315 ptr = pslpi = NULL; 1316 length = 0; 1317 current = 0; 1318 head = NULL; 1319 link = &head; 1320 1321 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) && 1322 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) && 1323 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) { 1324 ptr = pslpi = g_malloc0(length); 1325 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) { 1326 error_setg(&local_err, "Failed to get processor information: %d", 1327 (int)GetLastError()); 1328 } 1329 } else { 1330 error_setg(&local_err, 1331 "Failed to get processor information buffer length: %d", 1332 (int)GetLastError()); 1333 } 1334 1335 while ((local_err == NULL) && (length > 0)) { 1336 if (pslpi->Relationship == RelationProcessorCore) { 1337 ULONG_PTR cpu_bits = pslpi->ProcessorMask; 1338 1339 while (cpu_bits > 0) { 1340 if (!!(cpu_bits & 1)) { 1341 GuestLogicalProcessor *vcpu; 1342 GuestLogicalProcessorList *entry; 1343 1344 vcpu = g_malloc0(sizeof *vcpu); 1345 vcpu->logical_id = current++; 1346 vcpu->online = true; 1347 vcpu->has_can_offline = false; 1348 1349 entry = g_malloc0(sizeof *entry); 1350 entry->value = vcpu; 1351 1352 *link = entry; 1353 link = &entry->next; 1354 } 1355 cpu_bits >>= 1; 1356 } 1357 } 1358 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION); 1359 pslpi++; /* next entry */ 1360 } 1361 1362 g_free(ptr); 1363 1364 if (local_err == NULL) { 1365 if (head != NULL) { 1366 return head; 1367 } 1368 /* there's no guest with zero VCPUs */ 1369 error_setg(&local_err, "Guest reported zero VCPUs"); 1370 } 1371 1372 qapi_free_GuestLogicalProcessorList(head); 1373 error_propagate(errp, local_err); 1374 return NULL; 1375 } 1376 1377 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) 1378 { 1379 error_setg(errp, QERR_UNSUPPORTED); 1380 return -1; 1381 } 1382 1383 static gchar * 1384 get_net_error_message(gint error) 1385 { 1386 HMODULE module = NULL; 1387 gchar *retval = NULL; 1388 wchar_t *msg = NULL; 1389 int flags; 1390 size_t nchars; 1391 1392 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER | 1393 FORMAT_MESSAGE_IGNORE_INSERTS | 1394 FORMAT_MESSAGE_FROM_SYSTEM; 1395 1396 if (error >= NERR_BASE && error <= MAX_NERR) { 1397 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE); 1398 1399 if (module != NULL) { 1400 flags |= FORMAT_MESSAGE_FROM_HMODULE; 1401 } 1402 } 1403 1404 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL); 1405 1406 if (msg != NULL) { 1407 nchars = wcslen(msg); 1408 1409 if (nchars >= 2 && 1410 msg[nchars - 1] == L'\n' && 1411 msg[nchars - 2] == L'\r') { 1412 msg[nchars - 2] = L'\0'; 1413 } 1414 1415 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL); 1416 1417 LocalFree(msg); 1418 } 1419 1420 if (module != NULL) { 1421 FreeLibrary(module); 1422 } 1423 1424 return retval; 1425 } 1426 1427 void qmp_guest_set_user_password(const char *username, 1428 const char *password, 1429 bool crypted, 1430 Error **errp) 1431 { 1432 NET_API_STATUS nas; 1433 char *rawpasswddata = NULL; 1434 size_t rawpasswdlen; 1435 wchar_t *user = NULL, *wpass = NULL; 1436 USER_INFO_1003 pi1003 = { 0, }; 1437 GError *gerr = NULL; 1438 1439 if (crypted) { 1440 error_setg(errp, QERR_UNSUPPORTED); 1441 return; 1442 } 1443 1444 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp); 1445 if (!rawpasswddata) { 1446 return; 1447 } 1448 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1); 1449 rawpasswddata[rawpasswdlen] = '\0'; 1450 1451 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr); 1452 if (!user) { 1453 goto done; 1454 } 1455 1456 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr); 1457 if (!wpass) { 1458 goto done; 1459 } 1460 1461 pi1003.usri1003_password = wpass; 1462 nas = NetUserSetInfo(NULL, user, 1463 1003, (LPBYTE)&pi1003, 1464 NULL); 1465 1466 if (nas != NERR_Success) { 1467 gchar *msg = get_net_error_message(nas); 1468 error_setg(errp, "failed to set password: %s", msg); 1469 g_free(msg); 1470 } 1471 1472 done: 1473 if (gerr) { 1474 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message); 1475 g_error_free(gerr); 1476 } 1477 g_free(user); 1478 g_free(wpass); 1479 g_free(rawpasswddata); 1480 } 1481 1482 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) 1483 { 1484 error_setg(errp, QERR_UNSUPPORTED); 1485 return NULL; 1486 } 1487 1488 GuestMemoryBlockResponseList * 1489 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) 1490 { 1491 error_setg(errp, QERR_UNSUPPORTED); 1492 return NULL; 1493 } 1494 1495 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) 1496 { 1497 error_setg(errp, QERR_UNSUPPORTED); 1498 return NULL; 1499 } 1500 1501 /* add unsupported commands to the blacklist */ 1502 GList *ga_command_blacklist_init(GList *blacklist) 1503 { 1504 const char *list_unsupported[] = { 1505 "guest-suspend-hybrid", 1506 "guest-set-vcpus", 1507 "guest-get-memory-blocks", "guest-set-memory-blocks", 1508 "guest-get-memory-block-size", 1509 "guest-fsfreeze-freeze-list", 1510 NULL}; 1511 char **p = (char **)list_unsupported; 1512 1513 while (*p) { 1514 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1515 } 1516 1517 if (!vss_init(true)) { 1518 g_debug("vss_init failed, vss commands are going to be disabled"); 1519 const char *list[] = { 1520 "guest-get-fsinfo", "guest-fsfreeze-status", 1521 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; 1522 p = (char **)list; 1523 1524 while (*p) { 1525 blacklist = g_list_append(blacklist, g_strdup(*p++)); 1526 } 1527 } 1528 1529 return blacklist; 1530 } 1531 1532 /* register init/cleanup routines for stateful command groups */ 1533 void ga_command_state_init(GAState *s, GACommandState *cs) 1534 { 1535 if (!vss_initialized()) { 1536 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); 1537 } 1538 } 1539