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