qga: check bytes count read by guest-file-read
[qemu.git] / qga / commands-win32.c
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
18 #include "qemu/osdep.h"
19 #include <wtypes.h>
20 #include <powrprof.h>
21 #include <winsock2.h>
22 #include <ws2tcpip.h>
23 #include <iptypes.h>
24 #include <iphlpapi.h>
25 #ifdef CONFIG_QGA_NTDDSCSI
26 #include <winioctl.h>
27 #include <ntddscsi.h>
28 #include <setupapi.h>
29 #include <initguid.h>
30 #endif
31 #include <lm.h>
32 #include <wtsapi32.h>
33 #include <wininet.h>
34
35 #include "guest-agent-core.h"
36 #include "vss-win32.h"
37 #include "qga-qapi-commands.h"
38 #include "qapi/error.h"
39 #include "qapi/qmp/qerror.h"
40 #include "qemu/queue.h"
41 #include "qemu/host-utils.h"
42 #include "qemu/base64.h"
43
44 #ifndef SHTDN_REASON_FLAG_PLANNED
45 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
46 #endif
47
48 /* multiple of 100 nanoseconds elapsed between windows baseline
49 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
50 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
51 (365 * (1970 - 1601) + \
52 (1970 - 1601) / 4 - 3))
53
54 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
55
56 typedef struct GuestFileHandle {
57 int64_t id;
58 HANDLE fh;
59 QTAILQ_ENTRY(GuestFileHandle) next;
60 } GuestFileHandle;
61
62 static struct {
63 QTAILQ_HEAD(, GuestFileHandle) filehandles;
64 } guest_file_state = {
65 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
66 };
67
68 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
69
70 typedef struct OpenFlags {
71 const char *forms;
72 DWORD desired_access;
73 DWORD creation_disposition;
74 } OpenFlags;
75 static OpenFlags guest_file_open_modes[] = {
76 {"r", GENERIC_READ, OPEN_EXISTING},
77 {"rb", GENERIC_READ, OPEN_EXISTING},
78 {"w", GENERIC_WRITE, CREATE_ALWAYS},
79 {"wb", GENERIC_WRITE, CREATE_ALWAYS},
80 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
81 {"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
82 {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
83 {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
84 {"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
85 {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
86 {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
87 {"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
88 {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
89 {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }
90 };
91
92 static OpenFlags *find_open_flag(const char *mode_str)
93 {
94 int mode;
95 Error **errp = NULL;
96
97 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
98 OpenFlags *flags = guest_file_open_modes + mode;
99
100 if (strcmp(flags->forms, mode_str) == 0) {
101 return flags;
102 }
103 }
104
105 error_setg(errp, "invalid file open mode '%s'", mode_str);
106 return NULL;
107 }
108
109 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
110 {
111 GuestFileHandle *gfh;
112 int64_t handle;
113
114 handle = ga_get_fd_handle(ga_state, errp);
115 if (handle < 0) {
116 return -1;
117 }
118 gfh = g_new0(GuestFileHandle, 1);
119 gfh->id = handle;
120 gfh->fh = fh;
121 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
122
123 return handle;
124 }
125
126 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
127 {
128 GuestFileHandle *gfh;
129 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
130 if (gfh->id == id) {
131 return gfh;
132 }
133 }
134 error_setg(errp, "handle '%" PRId64 "' has not been found", id);
135 return NULL;
136 }
137
138 static void handle_set_nonblocking(HANDLE fh)
139 {
140 DWORD file_type, pipe_state;
141 file_type = GetFileType(fh);
142 if (file_type != FILE_TYPE_PIPE) {
143 return;
144 }
145 /* If file_type == FILE_TYPE_PIPE, according to MSDN
146 * the specified file is socket or named pipe */
147 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
148 NULL, NULL, NULL, 0)) {
149 return;
150 }
151 /* The fd is named pipe fd */
152 if (pipe_state & PIPE_NOWAIT) {
153 return;
154 }
155
156 pipe_state |= PIPE_NOWAIT;
157 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
158 }
159
160 int64_t qmp_guest_file_open(const char *path, bool has_mode,
161 const char *mode, Error **errp)
162 {
163 int64_t fd;
164 HANDLE fh;
165 HANDLE templ_file = NULL;
166 DWORD share_mode = FILE_SHARE_READ;
167 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
168 LPSECURITY_ATTRIBUTES sa_attr = NULL;
169 OpenFlags *guest_flags;
170
171 if (!has_mode) {
172 mode = "r";
173 }
174 slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
175 guest_flags = find_open_flag(mode);
176 if (guest_flags == NULL) {
177 error_setg(errp, "invalid file open mode");
178 return -1;
179 }
180
181 fh = CreateFile(path, guest_flags->desired_access, share_mode, sa_attr,
182 guest_flags->creation_disposition, flags_and_attr,
183 templ_file);
184 if (fh == INVALID_HANDLE_VALUE) {
185 error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
186 path);
187 return -1;
188 }
189
190 /* set fd non-blocking to avoid common use cases (like reading from a
191 * named pipe) from hanging the agent
192 */
193 handle_set_nonblocking(fh);
194
195 fd = guest_file_handle_add(fh, errp);
196 if (fd < 0) {
197 CloseHandle(fh);
198 error_setg(errp, "failed to add handle to qmp handle table");
199 return -1;
200 }
201
202 slog("guest-file-open, handle: % " PRId64, fd);
203 return fd;
204 }
205
206 void qmp_guest_file_close(int64_t handle, Error **errp)
207 {
208 bool ret;
209 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
210 slog("guest-file-close called, handle: %" PRId64, handle);
211 if (gfh == NULL) {
212 return;
213 }
214 ret = CloseHandle(gfh->fh);
215 if (!ret) {
216 error_setg_win32(errp, GetLastError(), "failed close handle");
217 return;
218 }
219
220 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
221 g_free(gfh);
222 }
223
224 static void acquire_privilege(const char *name, Error **errp)
225 {
226 HANDLE token = NULL;
227 TOKEN_PRIVILEGES priv;
228 Error *local_err = NULL;
229
230 if (OpenProcessToken(GetCurrentProcess(),
231 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
232 {
233 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
234 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
235 "no luid for requested privilege");
236 goto out;
237 }
238
239 priv.PrivilegeCount = 1;
240 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
241
242 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
243 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
244 "unable to acquire requested privilege");
245 goto out;
246 }
247
248 } else {
249 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
250 "failed to open privilege token");
251 }
252
253 out:
254 if (token) {
255 CloseHandle(token);
256 }
257 error_propagate(errp, local_err);
258 }
259
260 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
261 Error **errp)
262 {
263 Error *local_err = NULL;
264
265 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
266 if (!thread) {
267 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
268 "failed to dispatch asynchronous command");
269 error_propagate(errp, local_err);
270 }
271 }
272
273 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
274 {
275 Error *local_err = NULL;
276 UINT shutdown_flag = EWX_FORCE;
277
278 slog("guest-shutdown called, mode: %s", mode);
279
280 if (!has_mode || strcmp(mode, "powerdown") == 0) {
281 shutdown_flag |= EWX_POWEROFF;
282 } else if (strcmp(mode, "halt") == 0) {
283 shutdown_flag |= EWX_SHUTDOWN;
284 } else if (strcmp(mode, "reboot") == 0) {
285 shutdown_flag |= EWX_REBOOT;
286 } else {
287 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
288 "halt|powerdown|reboot");
289 return;
290 }
291
292 /* Request a shutdown privilege, but try to shut down the system
293 anyway. */
294 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
295 if (local_err) {
296 error_propagate(errp, local_err);
297 return;
298 }
299
300 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
301 slog("guest-shutdown failed: %lu", GetLastError());
302 error_setg(errp, QERR_UNDEFINED_ERROR);
303 }
304 }
305
306 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
307 int64_t count, Error **errp)
308 {
309 GuestFileRead *read_data = NULL;
310 guchar *buf;
311 HANDLE fh;
312 bool is_ok;
313 DWORD read_count;
314 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
315
316 if (!gfh) {
317 return NULL;
318 }
319 if (!has_count) {
320 count = QGA_READ_COUNT_DEFAULT;
321 } else if (count < 0 || count >= UINT32_MAX) {
322 error_setg(errp, "value '%" PRId64
323 "' is invalid for argument count", count);
324 return NULL;
325 }
326
327 fh = gfh->fh;
328 buf = g_malloc0(count+1);
329 is_ok = ReadFile(fh, buf, count, &read_count, NULL);
330 if (!is_ok) {
331 error_setg_win32(errp, GetLastError(), "failed to read file");
332 slog("guest-file-read failed, handle %" PRId64, handle);
333 } else {
334 buf[read_count] = 0;
335 read_data = g_new0(GuestFileRead, 1);
336 read_data->count = (size_t)read_count;
337 read_data->eof = read_count == 0;
338
339 if (read_count != 0) {
340 read_data->buf_b64 = g_base64_encode(buf, read_count);
341 }
342 }
343 g_free(buf);
344
345 return read_data;
346 }
347
348 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
349 bool has_count, int64_t count,
350 Error **errp)
351 {
352 GuestFileWrite *write_data = NULL;
353 guchar *buf;
354 gsize buf_len;
355 bool is_ok;
356 DWORD write_count;
357 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
358 HANDLE fh;
359
360 if (!gfh) {
361 return NULL;
362 }
363 fh = gfh->fh;
364 buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
365 if (!buf) {
366 return NULL;
367 }
368
369 if (!has_count) {
370 count = buf_len;
371 } else if (count < 0 || count > buf_len) {
372 error_setg(errp, "value '%" PRId64
373 "' is invalid for argument count", count);
374 goto done;
375 }
376
377 is_ok = WriteFile(fh, buf, count, &write_count, NULL);
378 if (!is_ok) {
379 error_setg_win32(errp, GetLastError(), "failed to write to file");
380 slog("guest-file-write-failed, handle: %" PRId64, handle);
381 } else {
382 write_data = g_new0(GuestFileWrite, 1);
383 write_data->count = (size_t) write_count;
384 }
385
386 done:
387 g_free(buf);
388 return write_data;
389 }
390
391 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
392 GuestFileWhence *whence_code,
393 Error **errp)
394 {
395 GuestFileHandle *gfh;
396 GuestFileSeek *seek_data;
397 HANDLE fh;
398 LARGE_INTEGER new_pos, off_pos;
399 off_pos.QuadPart = offset;
400 BOOL res;
401 int whence;
402 Error *err = NULL;
403
404 gfh = guest_file_handle_find(handle, errp);
405 if (!gfh) {
406 return NULL;
407 }
408
409 /* We stupidly exposed 'whence':'int' in our qapi */
410 whence = ga_parse_whence(whence_code, &err);
411 if (err) {
412 error_propagate(errp, err);
413 return NULL;
414 }
415
416 fh = gfh->fh;
417 res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
418 if (!res) {
419 error_setg_win32(errp, GetLastError(), "failed to seek file");
420 return NULL;
421 }
422 seek_data = g_new0(GuestFileSeek, 1);
423 seek_data->position = new_pos.QuadPart;
424 return seek_data;
425 }
426
427 void qmp_guest_file_flush(int64_t handle, Error **errp)
428 {
429 HANDLE fh;
430 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
431 if (!gfh) {
432 return;
433 }
434
435 fh = gfh->fh;
436 if (!FlushFileBuffers(fh)) {
437 error_setg_win32(errp, GetLastError(), "failed to flush file");
438 }
439 }
440
441 #ifdef CONFIG_QGA_NTDDSCSI
442
443 static STORAGE_BUS_TYPE win2qemu[] = {
444 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
445 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
446 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
447 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
448 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
449 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
450 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
451 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
452 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
453 #if (_WIN32_WINNT >= 0x0600)
454 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
455 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
456 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
457 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
458 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
459 #endif
460 #if (_WIN32_WINNT >= 0x0601)
461 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
462 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
463 #endif
464 };
465
466 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
467 {
468 if (bus > ARRAY_SIZE(win2qemu) || (int)bus < 0) {
469 return GUEST_DISK_BUS_TYPE_UNKNOWN;
470 }
471 return win2qemu[(int)bus];
472 }
473
474 DEFINE_GUID(GUID_DEVINTERFACE_VOLUME,
475 0x53f5630dL, 0xb6bf, 0x11d0, 0x94, 0xf2,
476 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
477
478 static GuestPCIAddress *get_pci_info(char *guid, Error **errp)
479 {
480 HDEVINFO dev_info;
481 SP_DEVINFO_DATA dev_info_data;
482 DWORD size = 0;
483 int i;
484 char dev_name[MAX_PATH];
485 char *buffer = NULL;
486 GuestPCIAddress *pci = NULL;
487 char *name = g_strdup(&guid[4]);
488
489 if (!QueryDosDevice(name, dev_name, ARRAY_SIZE(dev_name))) {
490 error_setg_win32(errp, GetLastError(), "failed to get dos device name");
491 goto out;
492 }
493
494 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME, 0, 0,
495 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
496 if (dev_info == INVALID_HANDLE_VALUE) {
497 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
498 goto out;
499 }
500
501 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
502 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
503 DWORD addr, bus, slot, func, dev, data, size2;
504 while (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
505 SPDRP_PHYSICAL_DEVICE_OBJECT_NAME,
506 &data, (PBYTE)buffer, size,
507 &size2)) {
508 size = MAX(size, size2);
509 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
510 g_free(buffer);
511 /* Double the size to avoid problems on
512 * W2k MBCS systems per KB 888609.
513 * https://support.microsoft.com/en-us/kb/259695 */
514 buffer = g_malloc(size * 2);
515 } else {
516 error_setg_win32(errp, GetLastError(),
517 "failed to get device name");
518 goto free_dev_info;
519 }
520 }
521
522 if (g_strcmp0(buffer, dev_name)) {
523 continue;
524 }
525
526 /* There is no need to allocate buffer in the next functions. The size
527 * is known and ULONG according to
528 * https://support.microsoft.com/en-us/kb/253232
529 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
530 */
531 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
532 SPDRP_BUSNUMBER, &data, (PBYTE)&bus, size, NULL)) {
533 break;
534 }
535
536 /* The function retrieves the device's address. This value will be
537 * transformed into device function and number */
538 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
539 SPDRP_ADDRESS, &data, (PBYTE)&addr, size, NULL)) {
540 break;
541 }
542
543 /* This call returns UINumber of DEVICE_CAPABILITIES structure.
544 * This number is typically a user-perceived slot number. */
545 if (!SetupDiGetDeviceRegistryProperty(dev_info, &dev_info_data,
546 SPDRP_UI_NUMBER, &data, (PBYTE)&slot, size, NULL)) {
547 break;
548 }
549
550 /* SetupApi gives us the same information as driver with
551 * IoGetDeviceProperty. According to Microsoft
552 * https://support.microsoft.com/en-us/kb/253232
553 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF);
554 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF);
555 * SPDRP_ADDRESS is propertyAddress, so we do the same.*/
556
557 func = addr & 0x0000FFFF;
558 dev = (addr >> 16) & 0x0000FFFF;
559 pci = g_malloc0(sizeof(*pci));
560 pci->domain = dev;
561 pci->slot = slot;
562 pci->function = func;
563 pci->bus = bus;
564 break;
565 }
566
567 free_dev_info:
568 SetupDiDestroyDeviceInfoList(dev_info);
569 out:
570 g_free(buffer);
571 g_free(name);
572 return pci;
573 }
574
575 static int get_disk_bus_type(HANDLE vol_h, Error **errp)
576 {
577 STORAGE_PROPERTY_QUERY query;
578 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
579 DWORD received;
580
581 dev_desc = &buf;
582 dev_desc->Size = sizeof(buf);
583 query.PropertyId = StorageDeviceProperty;
584 query.QueryType = PropertyStandardQuery;
585
586 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
587 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
588 dev_desc->Size, &received, NULL)) {
589 error_setg_win32(errp, GetLastError(), "failed to get bus type");
590 return -1;
591 }
592
593 return dev_desc->BusType;
594 }
595
596 /* VSS provider works with volumes, thus there is no difference if
597 * the volume consist of spanned disks. Info about the first disk in the
598 * volume is returned for the spanned disk group (LVM) */
599 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
600 {
601 GuestDiskAddressList *list = NULL;
602 GuestDiskAddress *disk;
603 SCSI_ADDRESS addr, *scsi_ad;
604 DWORD len;
605 int bus;
606 HANDLE vol_h;
607
608 scsi_ad = &addr;
609 char *name = g_strndup(guid, strlen(guid)-1);
610
611 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
612 0, NULL);
613 if (vol_h == INVALID_HANDLE_VALUE) {
614 error_setg_win32(errp, GetLastError(), "failed to open volume");
615 goto out_free;
616 }
617
618 bus = get_disk_bus_type(vol_h, errp);
619 if (bus < 0) {
620 goto out_close;
621 }
622
623 disk = g_malloc0(sizeof(*disk));
624 disk->bus_type = find_bus_type(bus);
625 if (bus == BusTypeScsi || bus == BusTypeAta || bus == BusTypeRAID
626 #if (_WIN32_WINNT >= 0x0600)
627 /* This bus type is not supported before Windows Server 2003 SP1 */
628 || bus == BusTypeSas
629 #endif
630 ) {
631 /* We are able to use the same ioctls for different bus types
632 * according to Microsoft docs
633 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
634 if (DeviceIoControl(vol_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
635 sizeof(SCSI_ADDRESS), &len, NULL)) {
636 disk->unit = addr.Lun;
637 disk->target = addr.TargetId;
638 disk->bus = addr.PathId;
639 disk->pci_controller = get_pci_info(name, errp);
640 }
641 /* We do not set error in this case, because we still have enough
642 * information about volume. */
643 } else {
644 disk->pci_controller = NULL;
645 }
646
647 list = g_malloc0(sizeof(*list));
648 list->value = disk;
649 list->next = NULL;
650 out_close:
651 CloseHandle(vol_h);
652 out_free:
653 g_free(name);
654 return list;
655 }
656
657 #else
658
659 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
660 {
661 return NULL;
662 }
663
664 #endif /* CONFIG_QGA_NTDDSCSI */
665
666 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
667 {
668 DWORD info_size;
669 char mnt, *mnt_point;
670 char fs_name[32];
671 char vol_info[MAX_PATH+1];
672 size_t len;
673 GuestFilesystemInfo *fs = NULL;
674
675 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
676 if (GetLastError() != ERROR_MORE_DATA) {
677 error_setg_win32(errp, GetLastError(), "failed to get volume name");
678 return NULL;
679 }
680
681 mnt_point = g_malloc(info_size + 1);
682 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
683 &info_size)) {
684 error_setg_win32(errp, GetLastError(), "failed to get volume name");
685 goto free;
686 }
687
688 len = strlen(mnt_point);
689 mnt_point[len] = '\\';
690 mnt_point[len+1] = 0;
691 if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
692 NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
693 if (GetLastError() != ERROR_NOT_READY) {
694 error_setg_win32(errp, GetLastError(), "failed to get volume info");
695 }
696 goto free;
697 }
698
699 fs_name[sizeof(fs_name) - 1] = 0;
700 fs = g_malloc(sizeof(*fs));
701 fs->name = g_strdup(guid);
702 if (len == 0) {
703 fs->mountpoint = g_strdup("System Reserved");
704 } else {
705 fs->mountpoint = g_strndup(mnt_point, len);
706 }
707 fs->type = g_strdup(fs_name);
708 fs->disk = build_guest_disk_info(guid, errp);
709 free:
710 g_free(mnt_point);
711 return fs;
712 }
713
714 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
715 {
716 HANDLE vol_h;
717 GuestFilesystemInfoList *new, *ret = NULL;
718 char guid[256];
719
720 vol_h = FindFirstVolume(guid, sizeof(guid));
721 if (vol_h == INVALID_HANDLE_VALUE) {
722 error_setg_win32(errp, GetLastError(), "failed to find any volume");
723 return NULL;
724 }
725
726 do {
727 GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
728 if (info == NULL) {
729 continue;
730 }
731 new = g_malloc(sizeof(*ret));
732 new->value = info;
733 new->next = ret;
734 ret = new;
735 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
736
737 if (GetLastError() != ERROR_NO_MORE_FILES) {
738 error_setg_win32(errp, GetLastError(), "failed to find next volume");
739 }
740
741 FindVolumeClose(vol_h);
742 return ret;
743 }
744
745 /*
746 * Return status of freeze/thaw
747 */
748 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
749 {
750 if (!vss_initialized()) {
751 error_setg(errp, QERR_UNSUPPORTED);
752 return 0;
753 }
754
755 if (ga_is_frozen(ga_state)) {
756 return GUEST_FSFREEZE_STATUS_FROZEN;
757 }
758
759 return GUEST_FSFREEZE_STATUS_THAWED;
760 }
761
762 /*
763 * Freeze local file systems using Volume Shadow-copy Service.
764 * The frozen state is limited for up to 10 seconds by VSS.
765 */
766 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
767 {
768 int i;
769 Error *local_err = NULL;
770
771 if (!vss_initialized()) {
772 error_setg(errp, QERR_UNSUPPORTED);
773 return 0;
774 }
775
776 slog("guest-fsfreeze called");
777
778 /* cannot risk guest agent blocking itself on a write in this state */
779 ga_set_frozen(ga_state);
780
781 qga_vss_fsfreeze(&i, true, &local_err);
782 if (local_err) {
783 error_propagate(errp, local_err);
784 goto error;
785 }
786
787 return i;
788
789 error:
790 local_err = NULL;
791 qmp_guest_fsfreeze_thaw(&local_err);
792 if (local_err) {
793 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
794 error_free(local_err);
795 }
796 return 0;
797 }
798
799 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
800 strList *mountpoints,
801 Error **errp)
802 {
803 error_setg(errp, QERR_UNSUPPORTED);
804
805 return 0;
806 }
807
808 /*
809 * Thaw local file systems using Volume Shadow-copy Service.
810 */
811 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
812 {
813 int i;
814
815 if (!vss_initialized()) {
816 error_setg(errp, QERR_UNSUPPORTED);
817 return 0;
818 }
819
820 qga_vss_fsfreeze(&i, false, errp);
821
822 ga_unset_frozen(ga_state);
823 return i;
824 }
825
826 static void guest_fsfreeze_cleanup(void)
827 {
828 Error *err = NULL;
829
830 if (!vss_initialized()) {
831 return;
832 }
833
834 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
835 qmp_guest_fsfreeze_thaw(&err);
836 if (err) {
837 slog("failed to clean up frozen filesystems: %s",
838 error_get_pretty(err));
839 error_free(err);
840 }
841 }
842
843 vss_deinit(true);
844 }
845
846 /*
847 * Walk list of mounted file systems in the guest, and discard unused
848 * areas.
849 */
850 GuestFilesystemTrimResponse *
851 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
852 {
853 GuestFilesystemTrimResponse *resp;
854 HANDLE handle;
855 WCHAR guid[MAX_PATH] = L"";
856
857 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
858 if (handle == INVALID_HANDLE_VALUE) {
859 error_setg_win32(errp, GetLastError(), "failed to find any volume");
860 return NULL;
861 }
862
863 resp = g_new0(GuestFilesystemTrimResponse, 1);
864
865 do {
866 GuestFilesystemTrimResult *res;
867 GuestFilesystemTrimResultList *list;
868 PWCHAR uc_path;
869 DWORD char_count = 0;
870 char *path, *out;
871 GError *gerr = NULL;
872 gchar * argv[4];
873
874 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
875
876 if (GetLastError() != ERROR_MORE_DATA) {
877 continue;
878 }
879 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
880 continue;
881 }
882
883 uc_path = g_malloc(sizeof(WCHAR) * char_count);
884 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
885 &char_count) || !*uc_path) {
886 /* strange, but this condition could be faced even with size == 2 */
887 g_free(uc_path);
888 continue;
889 }
890
891 res = g_new0(GuestFilesystemTrimResult, 1);
892
893 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
894
895 g_free(uc_path);
896
897 if (!path) {
898 res->has_error = true;
899 res->error = g_strdup(gerr->message);
900 g_error_free(gerr);
901 break;
902 }
903
904 res->path = path;
905
906 list = g_new0(GuestFilesystemTrimResultList, 1);
907 list->value = res;
908 list->next = resp->paths;
909
910 resp->paths = list;
911
912 memset(argv, 0, sizeof(argv));
913 argv[0] = (gchar *)"defrag.exe";
914 argv[1] = (gchar *)"/L";
915 argv[2] = path;
916
917 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
918 &out /* stdout */, NULL /* stdin */,
919 NULL, &gerr)) {
920 res->has_error = true;
921 res->error = g_strdup(gerr->message);
922 g_error_free(gerr);
923 } else {
924 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
925 Error is reported in the output with something like
926 (x89000020) etc code in the stdout */
927
928 int i;
929 gchar **lines = g_strsplit(out, "\r\n", 0);
930 g_free(out);
931
932 for (i = 0; lines[i] != NULL; i++) {
933 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
934 continue;
935 }
936 res->has_error = true;
937 res->error = g_strdup(lines[i]);
938 break;
939 }
940 g_strfreev(lines);
941 }
942 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
943
944 FindVolumeClose(handle);
945 return resp;
946 }
947
948 typedef enum {
949 GUEST_SUSPEND_MODE_DISK,
950 GUEST_SUSPEND_MODE_RAM
951 } GuestSuspendMode;
952
953 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
954 {
955 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
956 Error *local_err = NULL;
957
958 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
959 if (!GetPwrCapabilities(&sys_pwr_caps)) {
960 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
961 "failed to determine guest suspend capabilities");
962 goto out;
963 }
964
965 switch (mode) {
966 case GUEST_SUSPEND_MODE_DISK:
967 if (!sys_pwr_caps.SystemS4) {
968 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
969 "suspend-to-disk not supported by OS");
970 }
971 break;
972 case GUEST_SUSPEND_MODE_RAM:
973 if (!sys_pwr_caps.SystemS3) {
974 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
975 "suspend-to-ram not supported by OS");
976 }
977 break;
978 default:
979 error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
980 "GuestSuspendMode");
981 }
982
983 out:
984 error_propagate(errp, local_err);
985 }
986
987 static DWORD WINAPI do_suspend(LPVOID opaque)
988 {
989 GuestSuspendMode *mode = opaque;
990 DWORD ret = 0;
991
992 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
993 slog("failed to suspend guest, %lu", GetLastError());
994 ret = -1;
995 }
996 g_free(mode);
997 return ret;
998 }
999
1000 void qmp_guest_suspend_disk(Error **errp)
1001 {
1002 Error *local_err = NULL;
1003 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1004
1005 *mode = GUEST_SUSPEND_MODE_DISK;
1006 check_suspend_mode(*mode, &local_err);
1007 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1008 execute_async(do_suspend, mode, &local_err);
1009
1010 if (local_err) {
1011 error_propagate(errp, local_err);
1012 g_free(mode);
1013 }
1014 }
1015
1016 void qmp_guest_suspend_ram(Error **errp)
1017 {
1018 Error *local_err = NULL;
1019 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1020
1021 *mode = GUEST_SUSPEND_MODE_RAM;
1022 check_suspend_mode(*mode, &local_err);
1023 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1024 execute_async(do_suspend, mode, &local_err);
1025
1026 if (local_err) {
1027 error_propagate(errp, local_err);
1028 g_free(mode);
1029 }
1030 }
1031
1032 void qmp_guest_suspend_hybrid(Error **errp)
1033 {
1034 error_setg(errp, QERR_UNSUPPORTED);
1035 }
1036
1037 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1038 {
1039 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1040 ULONG adptr_addrs_len = 0;
1041 DWORD ret;
1042
1043 /* Call the first time to get the adptr_addrs_len. */
1044 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1045 NULL, adptr_addrs, &adptr_addrs_len);
1046
1047 adptr_addrs = g_malloc(adptr_addrs_len);
1048 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1049 NULL, adptr_addrs, &adptr_addrs_len);
1050 if (ret != ERROR_SUCCESS) {
1051 error_setg_win32(errp, ret, "failed to get adapters addresses");
1052 g_free(adptr_addrs);
1053 adptr_addrs = NULL;
1054 }
1055 return adptr_addrs;
1056 }
1057
1058 static char *guest_wctomb_dup(WCHAR *wstr)
1059 {
1060 char *str;
1061 size_t i;
1062
1063 i = wcslen(wstr) + 1;
1064 str = g_malloc(i);
1065 WideCharToMultiByte(CP_ACP, WC_COMPOSITECHECK,
1066 wstr, -1, str, i, NULL, NULL);
1067 return str;
1068 }
1069
1070 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1071 Error **errp)
1072 {
1073 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1074 DWORD len;
1075 int ret;
1076
1077 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1078 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1079 len = sizeof(addr_str);
1080 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1081 ip_addr->Address.iSockaddrLength,
1082 NULL,
1083 addr_str,
1084 &len);
1085 if (ret != 0) {
1086 error_setg_win32(errp, WSAGetLastError(),
1087 "failed address presentation form conversion");
1088 return NULL;
1089 }
1090 return g_strdup(addr_str);
1091 }
1092 return NULL;
1093 }
1094
1095 #if (_WIN32_WINNT >= 0x0600)
1096 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1097 {
1098 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1099 * field to obtain the prefix.
1100 */
1101 return ip_addr->OnLinkPrefixLength;
1102 }
1103 #else
1104 /* When using the Windows XP and 2003 build environment, do the best we can to
1105 * figure out the prefix.
1106 */
1107 static IP_ADAPTER_INFO *guest_get_adapters_info(void)
1108 {
1109 IP_ADAPTER_INFO *adptr_info = NULL;
1110 ULONG adptr_info_len = 0;
1111 DWORD ret;
1112
1113 /* Call the first time to get the adptr_info_len. */
1114 GetAdaptersInfo(adptr_info, &adptr_info_len);
1115
1116 adptr_info = g_malloc(adptr_info_len);
1117 ret = GetAdaptersInfo(adptr_info, &adptr_info_len);
1118 if (ret != ERROR_SUCCESS) {
1119 g_free(adptr_info);
1120 adptr_info = NULL;
1121 }
1122 return adptr_info;
1123 }
1124
1125 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1126 {
1127 int64_t prefix = -1; /* Use for AF_INET6 and unknown/undetermined values. */
1128 IP_ADAPTER_INFO *adptr_info, *info;
1129 IP_ADDR_STRING *ip;
1130 struct in_addr *p;
1131
1132 if (ip_addr->Address.lpSockaddr->sa_family != AF_INET) {
1133 return prefix;
1134 }
1135 adptr_info = guest_get_adapters_info();
1136 if (adptr_info == NULL) {
1137 return prefix;
1138 }
1139
1140 /* Match up the passed in ip_addr with one found in adaptr_info.
1141 * The matching one in adptr_info will have the netmask.
1142 */
1143 p = &((struct sockaddr_in *)ip_addr->Address.lpSockaddr)->sin_addr;
1144 for (info = adptr_info; info; info = info->Next) {
1145 for (ip = &info->IpAddressList; ip; ip = ip->Next) {
1146 if (p->S_un.S_addr == inet_addr(ip->IpAddress.String)) {
1147 prefix = ctpop32(inet_addr(ip->IpMask.String));
1148 goto out;
1149 }
1150 }
1151 }
1152 out:
1153 g_free(adptr_info);
1154 return prefix;
1155 }
1156 #endif
1157
1158 #define INTERFACE_PATH_BUF_SZ 512
1159
1160 static DWORD get_interface_index(const char *guid)
1161 {
1162 ULONG index;
1163 DWORD status;
1164 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1165 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1166 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1167 status = GetAdapterIndex (wbuf, &index);
1168 if (status != NO_ERROR) {
1169 return (DWORD)~0;
1170 } else {
1171 return index;
1172 }
1173 }
1174
1175 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1176
1177 static int guest_get_network_stats(const char *name,
1178 GuestNetworkInterfaceStat *stats)
1179 {
1180 OSVERSIONINFO os_ver;
1181
1182 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1183 GetVersionEx(&os_ver);
1184 if (os_ver.dwMajorVersion >= 6) {
1185 MIB_IF_ROW2 a_mid_ifrow;
1186 GetIfEntry2Func getifentry2_ex;
1187 DWORD if_index = 0;
1188 HMODULE module = GetModuleHandle("iphlpapi");
1189 PVOID func = GetProcAddress(module, "GetIfEntry2");
1190
1191 if (func == NULL) {
1192 return -1;
1193 }
1194
1195 getifentry2_ex = (GetIfEntry2Func)func;
1196 if_index = get_interface_index(name);
1197 if (if_index == (DWORD)~0) {
1198 return -1;
1199 }
1200
1201 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1202 a_mid_ifrow.InterfaceIndex = if_index;
1203 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1204 stats->rx_bytes = a_mid_ifrow.InOctets;
1205 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1206 stats->rx_errs = a_mid_ifrow.InErrors;
1207 stats->rx_dropped = a_mid_ifrow.InDiscards;
1208 stats->tx_bytes = a_mid_ifrow.OutOctets;
1209 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1210 stats->tx_errs = a_mid_ifrow.OutErrors;
1211 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1212 return 0;
1213 }
1214 }
1215 return -1;
1216 }
1217
1218 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1219 {
1220 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1221 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1222 GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1223 GuestIpAddressList *head_addr, *cur_addr;
1224 GuestNetworkInterfaceList *info;
1225 GuestNetworkInterfaceStat *interface_stat = NULL;
1226 GuestIpAddressList *address_item = NULL;
1227 unsigned char *mac_addr;
1228 char *addr_str;
1229 WORD wsa_version;
1230 WSADATA wsa_data;
1231 int ret;
1232
1233 adptr_addrs = guest_get_adapters_addresses(errp);
1234 if (adptr_addrs == NULL) {
1235 return NULL;
1236 }
1237
1238 /* Make WSA APIs available. */
1239 wsa_version = MAKEWORD(2, 2);
1240 ret = WSAStartup(wsa_version, &wsa_data);
1241 if (ret != 0) {
1242 error_setg_win32(errp, ret, "failed socket startup");
1243 goto out;
1244 }
1245
1246 for (addr = adptr_addrs; addr; addr = addr->Next) {
1247 info = g_malloc0(sizeof(*info));
1248
1249 if (cur_item == NULL) {
1250 head = cur_item = info;
1251 } else {
1252 cur_item->next = info;
1253 cur_item = info;
1254 }
1255
1256 info->value = g_malloc0(sizeof(*info->value));
1257 info->value->name = guest_wctomb_dup(addr->FriendlyName);
1258
1259 if (addr->PhysicalAddressLength != 0) {
1260 mac_addr = addr->PhysicalAddress;
1261
1262 info->value->hardware_address =
1263 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1264 (int) mac_addr[0], (int) mac_addr[1],
1265 (int) mac_addr[2], (int) mac_addr[3],
1266 (int) mac_addr[4], (int) mac_addr[5]);
1267
1268 info->value->has_hardware_address = true;
1269 }
1270
1271 head_addr = NULL;
1272 cur_addr = NULL;
1273 for (ip_addr = addr->FirstUnicastAddress;
1274 ip_addr;
1275 ip_addr = ip_addr->Next) {
1276 addr_str = guest_addr_to_str(ip_addr, errp);
1277 if (addr_str == NULL) {
1278 continue;
1279 }
1280
1281 address_item = g_malloc0(sizeof(*address_item));
1282
1283 if (!cur_addr) {
1284 head_addr = cur_addr = address_item;
1285 } else {
1286 cur_addr->next = address_item;
1287 cur_addr = address_item;
1288 }
1289
1290 address_item->value = g_malloc0(sizeof(*address_item->value));
1291 address_item->value->ip_address = addr_str;
1292 address_item->value->prefix = guest_ip_prefix(ip_addr);
1293 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1294 address_item->value->ip_address_type =
1295 GUEST_IP_ADDRESS_TYPE_IPV4;
1296 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1297 address_item->value->ip_address_type =
1298 GUEST_IP_ADDRESS_TYPE_IPV6;
1299 }
1300 }
1301 if (head_addr) {
1302 info->value->has_ip_addresses = true;
1303 info->value->ip_addresses = head_addr;
1304 }
1305 if (!info->value->has_statistics) {
1306 interface_stat = g_malloc0(sizeof(*interface_stat));
1307 if (guest_get_network_stats(addr->AdapterName,
1308 interface_stat) == -1) {
1309 info->value->has_statistics = false;
1310 g_free(interface_stat);
1311 } else {
1312 info->value->statistics = interface_stat;
1313 info->value->has_statistics = true;
1314 }
1315 }
1316 }
1317 WSACleanup();
1318 out:
1319 g_free(adptr_addrs);
1320 return head;
1321 }
1322
1323 int64_t qmp_guest_get_time(Error **errp)
1324 {
1325 SYSTEMTIME ts = {0};
1326 FILETIME tf;
1327
1328 GetSystemTime(&ts);
1329 if (ts.wYear < 1601 || ts.wYear > 30827) {
1330 error_setg(errp, "Failed to get time");
1331 return -1;
1332 }
1333
1334 if (!SystemTimeToFileTime(&ts, &tf)) {
1335 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1336 return -1;
1337 }
1338
1339 return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1340 - W32_FT_OFFSET) * 100;
1341 }
1342
1343 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1344 {
1345 Error *local_err = NULL;
1346 SYSTEMTIME ts;
1347 FILETIME tf;
1348 LONGLONG time;
1349
1350 if (!has_time) {
1351 /* Unfortunately, Windows libraries don't provide an easy way to access
1352 * RTC yet:
1353 *
1354 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1355 *
1356 * Instead, a workaround is to use the Windows win32tm command to
1357 * resync the time using the Windows Time service.
1358 */
1359 LPVOID msg_buffer;
1360 DWORD ret_flags;
1361
1362 HRESULT hr = system("w32tm /resync /nowait");
1363
1364 if (GetLastError() != 0) {
1365 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1366 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1367 } else if (hr != 0) {
1368 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1369 error_setg(errp, "Windows Time service not running on the "
1370 "guest");
1371 } else {
1372 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1373 FORMAT_MESSAGE_FROM_SYSTEM |
1374 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1375 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1376 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1377 NULL)) {
1378 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1379 "t retrieve error message", hr);
1380 } else {
1381 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1382 (LPCTSTR)msg_buffer);
1383 LocalFree(msg_buffer);
1384 }
1385 }
1386 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1387 error_setg(errp, "No internet connection on guest, sync not "
1388 "accurate");
1389 }
1390 return;
1391 }
1392
1393 /* Validate time passed by user. */
1394 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1395 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1396 return;
1397 }
1398
1399 time = time_ns / 100 + W32_FT_OFFSET;
1400
1401 tf.dwLowDateTime = (DWORD) time;
1402 tf.dwHighDateTime = (DWORD) (time >> 32);
1403
1404 if (!FileTimeToSystemTime(&tf, &ts)) {
1405 error_setg(errp, "Failed to convert system time %d",
1406 (int)GetLastError());
1407 return;
1408 }
1409
1410 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1411 if (local_err) {
1412 error_propagate(errp, local_err);
1413 return;
1414 }
1415
1416 if (!SetSystemTime(&ts)) {
1417 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1418 return;
1419 }
1420 }
1421
1422 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1423 {
1424 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1425 DWORD length;
1426 GuestLogicalProcessorList *head, **link;
1427 Error *local_err = NULL;
1428 int64_t current;
1429
1430 ptr = pslpi = NULL;
1431 length = 0;
1432 current = 0;
1433 head = NULL;
1434 link = &head;
1435
1436 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1437 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1438 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1439 ptr = pslpi = g_malloc0(length);
1440 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1441 error_setg(&local_err, "Failed to get processor information: %d",
1442 (int)GetLastError());
1443 }
1444 } else {
1445 error_setg(&local_err,
1446 "Failed to get processor information buffer length: %d",
1447 (int)GetLastError());
1448 }
1449
1450 while ((local_err == NULL) && (length > 0)) {
1451 if (pslpi->Relationship == RelationProcessorCore) {
1452 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1453
1454 while (cpu_bits > 0) {
1455 if (!!(cpu_bits & 1)) {
1456 GuestLogicalProcessor *vcpu;
1457 GuestLogicalProcessorList *entry;
1458
1459 vcpu = g_malloc0(sizeof *vcpu);
1460 vcpu->logical_id = current++;
1461 vcpu->online = true;
1462 vcpu->has_can_offline = true;
1463
1464 entry = g_malloc0(sizeof *entry);
1465 entry->value = vcpu;
1466
1467 *link = entry;
1468 link = &entry->next;
1469 }
1470 cpu_bits >>= 1;
1471 }
1472 }
1473 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1474 pslpi++; /* next entry */
1475 }
1476
1477 g_free(ptr);
1478
1479 if (local_err == NULL) {
1480 if (head != NULL) {
1481 return head;
1482 }
1483 /* there's no guest with zero VCPUs */
1484 error_setg(&local_err, "Guest reported zero VCPUs");
1485 }
1486
1487 qapi_free_GuestLogicalProcessorList(head);
1488 error_propagate(errp, local_err);
1489 return NULL;
1490 }
1491
1492 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1493 {
1494 error_setg(errp, QERR_UNSUPPORTED);
1495 return -1;
1496 }
1497
1498 static gchar *
1499 get_net_error_message(gint error)
1500 {
1501 HMODULE module = NULL;
1502 gchar *retval = NULL;
1503 wchar_t *msg = NULL;
1504 int flags;
1505 size_t nchars;
1506
1507 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1508 FORMAT_MESSAGE_IGNORE_INSERTS |
1509 FORMAT_MESSAGE_FROM_SYSTEM;
1510
1511 if (error >= NERR_BASE && error <= MAX_NERR) {
1512 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1513
1514 if (module != NULL) {
1515 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1516 }
1517 }
1518
1519 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1520
1521 if (msg != NULL) {
1522 nchars = wcslen(msg);
1523
1524 if (nchars >= 2 &&
1525 msg[nchars - 1] == L'\n' &&
1526 msg[nchars - 2] == L'\r') {
1527 msg[nchars - 2] = L'\0';
1528 }
1529
1530 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1531
1532 LocalFree(msg);
1533 }
1534
1535 if (module != NULL) {
1536 FreeLibrary(module);
1537 }
1538
1539 return retval;
1540 }
1541
1542 void qmp_guest_set_user_password(const char *username,
1543 const char *password,
1544 bool crypted,
1545 Error **errp)
1546 {
1547 NET_API_STATUS nas;
1548 char *rawpasswddata = NULL;
1549 size_t rawpasswdlen;
1550 wchar_t *user = NULL, *wpass = NULL;
1551 USER_INFO_1003 pi1003 = { 0, };
1552 GError *gerr = NULL;
1553
1554 if (crypted) {
1555 error_setg(errp, QERR_UNSUPPORTED);
1556 return;
1557 }
1558
1559 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1560 if (!rawpasswddata) {
1561 return;
1562 }
1563 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1564 rawpasswddata[rawpasswdlen] = '\0';
1565
1566 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1567 if (!user) {
1568 goto done;
1569 }
1570
1571 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1572 if (!wpass) {
1573 goto done;
1574 }
1575
1576 pi1003.usri1003_password = wpass;
1577 nas = NetUserSetInfo(NULL, user,
1578 1003, (LPBYTE)&pi1003,
1579 NULL);
1580
1581 if (nas != NERR_Success) {
1582 gchar *msg = get_net_error_message(nas);
1583 error_setg(errp, "failed to set password: %s", msg);
1584 g_free(msg);
1585 }
1586
1587 done:
1588 if (gerr) {
1589 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1590 g_error_free(gerr);
1591 }
1592 g_free(user);
1593 g_free(wpass);
1594 g_free(rawpasswddata);
1595 }
1596
1597 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1598 {
1599 error_setg(errp, QERR_UNSUPPORTED);
1600 return NULL;
1601 }
1602
1603 GuestMemoryBlockResponseList *
1604 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1605 {
1606 error_setg(errp, QERR_UNSUPPORTED);
1607 return NULL;
1608 }
1609
1610 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1611 {
1612 error_setg(errp, QERR_UNSUPPORTED);
1613 return NULL;
1614 }
1615
1616 /* add unsupported commands to the blacklist */
1617 GList *ga_command_blacklist_init(GList *blacklist)
1618 {
1619 const char *list_unsupported[] = {
1620 "guest-suspend-hybrid",
1621 "guest-set-vcpus",
1622 "guest-get-memory-blocks", "guest-set-memory-blocks",
1623 "guest-get-memory-block-size",
1624 "guest-fsfreeze-freeze-list",
1625 NULL};
1626 char **p = (char **)list_unsupported;
1627
1628 while (*p) {
1629 blacklist = g_list_append(blacklist, g_strdup(*p++));
1630 }
1631
1632 if (!vss_init(true)) {
1633 g_debug("vss_init failed, vss commands are going to be disabled");
1634 const char *list[] = {
1635 "guest-get-fsinfo", "guest-fsfreeze-status",
1636 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1637 p = (char **)list;
1638
1639 while (*p) {
1640 blacklist = g_list_append(blacklist, g_strdup(*p++));
1641 }
1642 }
1643
1644 return blacklist;
1645 }
1646
1647 /* register init/cleanup routines for stateful command groups */
1648 void ga_command_state_init(GAState *s, GACommandState *cs)
1649 {
1650 if (!vss_initialized()) {
1651 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1652 }
1653 }
1654
1655 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
1656 typedef struct _GA_WTSINFOA {
1657 WTS_CONNECTSTATE_CLASS State;
1658 DWORD SessionId;
1659 DWORD IncomingBytes;
1660 DWORD OutgoingBytes;
1661 DWORD IncomingFrames;
1662 DWORD OutgoingFrames;
1663 DWORD IncomingCompressedBytes;
1664 DWORD OutgoingCompressedBy;
1665 CHAR WinStationName[WINSTATIONNAME_LENGTH];
1666 CHAR Domain[DOMAIN_LENGTH];
1667 CHAR UserName[USERNAME_LENGTH + 1];
1668 LARGE_INTEGER ConnectTime;
1669 LARGE_INTEGER DisconnectTime;
1670 LARGE_INTEGER LastInputTime;
1671 LARGE_INTEGER LogonTime;
1672 LARGE_INTEGER CurrentTime;
1673
1674 } GA_WTSINFOA;
1675
1676 GuestUserList *qmp_guest_get_users(Error **err)
1677 {
1678 #if (_WIN32_WINNT >= 0x0600)
1679 #define QGA_NANOSECONDS 10000000
1680
1681 GHashTable *cache = NULL;
1682 GuestUserList *head = NULL, *cur_item = NULL;
1683
1684 DWORD buffer_size = 0, count = 0, i = 0;
1685 GA_WTSINFOA *info = NULL;
1686 WTS_SESSION_INFOA *entries = NULL;
1687 GuestUserList *item = NULL;
1688 GuestUser *user = NULL;
1689 gpointer value = NULL;
1690 INT64 login = 0;
1691 double login_time = 0;
1692
1693 cache = g_hash_table_new(g_str_hash, g_str_equal);
1694
1695 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
1696 for (i = 0; i < count; ++i) {
1697 buffer_size = 0;
1698 info = NULL;
1699 if (WTSQuerySessionInformationA(
1700 NULL,
1701 entries[i].SessionId,
1702 WTSSessionInfo,
1703 (LPSTR *)&info,
1704 &buffer_size
1705 )) {
1706
1707 if (strlen(info->UserName) == 0) {
1708 WTSFreeMemory(info);
1709 continue;
1710 }
1711
1712 login = info->LogonTime.QuadPart;
1713 login -= W32_FT_OFFSET;
1714 login_time = ((double)login) / QGA_NANOSECONDS;
1715
1716 if (g_hash_table_contains(cache, info->UserName)) {
1717 value = g_hash_table_lookup(cache, info->UserName);
1718 user = (GuestUser *)value;
1719 if (user->login_time > login_time) {
1720 user->login_time = login_time;
1721 }
1722 } else {
1723 item = g_new0(GuestUserList, 1);
1724 item->value = g_new0(GuestUser, 1);
1725
1726 item->value->user = g_strdup(info->UserName);
1727 item->value->domain = g_strdup(info->Domain);
1728 item->value->has_domain = true;
1729
1730 item->value->login_time = login_time;
1731
1732 g_hash_table_add(cache, item->value->user);
1733
1734 if (!cur_item) {
1735 head = cur_item = item;
1736 } else {
1737 cur_item->next = item;
1738 cur_item = item;
1739 }
1740 }
1741 }
1742 WTSFreeMemory(info);
1743 }
1744 WTSFreeMemory(entries);
1745 }
1746 g_hash_table_destroy(cache);
1747 return head;
1748 #else
1749 error_setg(err, QERR_UNSUPPORTED);
1750 return NULL;
1751 #endif
1752 }
1753
1754 typedef struct _ga_matrix_lookup_t {
1755 int major;
1756 int minor;
1757 char const *version;
1758 char const *version_id;
1759 } ga_matrix_lookup_t;
1760
1761 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = {
1762 {
1763 /* Desktop editions */
1764 { 5, 0, "Microsoft Windows 2000", "2000"},
1765 { 5, 1, "Microsoft Windows XP", "xp"},
1766 { 6, 0, "Microsoft Windows Vista", "vista"},
1767 { 6, 1, "Microsoft Windows 7" "7"},
1768 { 6, 2, "Microsoft Windows 8", "8"},
1769 { 6, 3, "Microsoft Windows 8.1", "8.1"},
1770 {10, 0, "Microsoft Windows 10", "10"},
1771 { 0, 0, 0}
1772 },{
1773 /* Server editions */
1774 { 5, 2, "Microsoft Windows Server 2003", "2003"},
1775 { 6, 0, "Microsoft Windows Server 2008", "2008"},
1776 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
1777 { 6, 2, "Microsoft Windows Server 2012", "2012"},
1778 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
1779 {10, 0, "Microsoft Windows Server 2016", "2016"},
1780 { 0, 0, 0},
1781 { 0, 0, 0}
1782 }
1783 };
1784
1785 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
1786 {
1787 typedef NTSTATUS(WINAPI * rtl_get_version_t)(
1788 RTL_OSVERSIONINFOEXW *os_version_info_ex);
1789
1790 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
1791
1792 HMODULE module = GetModuleHandle("ntdll");
1793 PVOID fun = GetProcAddress(module, "RtlGetVersion");
1794 if (fun == NULL) {
1795 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1796 "Failed to get address of RtlGetVersion");
1797 return;
1798 }
1799
1800 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
1801 rtl_get_version(info);
1802 return;
1803 }
1804
1805 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
1806 {
1807 DWORD major = os_version->dwMajorVersion;
1808 DWORD minor = os_version->dwMinorVersion;
1809 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
1810 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
1811 while (table->version != NULL) {
1812 if (major == table->major && minor == table->minor) {
1813 if (id) {
1814 return g_strdup(table->version_id);
1815 } else {
1816 return g_strdup(table->version);
1817 }
1818 }
1819 ++table;
1820 }
1821 slog("failed to lookup Windows version: major=%lu, minor=%lu",
1822 major, minor);
1823 return g_strdup("N/A");
1824 }
1825
1826 static char *ga_get_win_product_name(Error **errp)
1827 {
1828 HKEY key = NULL;
1829 DWORD size = 128;
1830 char *result = g_malloc0(size);
1831 LONG err = ERROR_SUCCESS;
1832
1833 err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
1834 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
1835 &key);
1836 if (err != ERROR_SUCCESS) {
1837 error_setg_win32(errp, err, "failed to open registry key");
1838 goto fail;
1839 }
1840
1841 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
1842 (LPBYTE)result, &size);
1843 if (err == ERROR_MORE_DATA) {
1844 slog("ProductName longer than expected (%lu bytes), retrying",
1845 size);
1846 g_free(result);
1847 result = NULL;
1848 if (size > 0) {
1849 result = g_malloc0(size);
1850 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
1851 (LPBYTE)result, &size);
1852 }
1853 }
1854 if (err != ERROR_SUCCESS) {
1855 error_setg_win32(errp, err, "failed to retrive ProductName");
1856 goto fail;
1857 }
1858
1859 return result;
1860
1861 fail:
1862 g_free(result);
1863 return NULL;
1864 }
1865
1866 static char *ga_get_current_arch(void)
1867 {
1868 SYSTEM_INFO info;
1869 GetNativeSystemInfo(&info);
1870 char *result = NULL;
1871 switch (info.wProcessorArchitecture) {
1872 case PROCESSOR_ARCHITECTURE_AMD64:
1873 result = g_strdup("x86_64");
1874 break;
1875 case PROCESSOR_ARCHITECTURE_ARM:
1876 result = g_strdup("arm");
1877 break;
1878 case PROCESSOR_ARCHITECTURE_IA64:
1879 result = g_strdup("ia64");
1880 break;
1881 case PROCESSOR_ARCHITECTURE_INTEL:
1882 result = g_strdup("x86");
1883 break;
1884 case PROCESSOR_ARCHITECTURE_UNKNOWN:
1885 default:
1886 slog("unknown processor architecture 0x%0x",
1887 info.wProcessorArchitecture);
1888 result = g_strdup("unknown");
1889 break;
1890 }
1891 return result;
1892 }
1893
1894 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
1895 {
1896 Error *local_err = NULL;
1897 OSVERSIONINFOEXW os_version = {0};
1898 bool server;
1899 char *product_name;
1900 GuestOSInfo *info;
1901
1902 ga_get_win_version(&os_version, &local_err);
1903 if (local_err) {
1904 error_propagate(errp, local_err);
1905 return NULL;
1906 }
1907
1908 server = os_version.wProductType != VER_NT_WORKSTATION;
1909 product_name = ga_get_win_product_name(&local_err);
1910 if (product_name == NULL) {
1911 error_propagate(errp, local_err);
1912 return NULL;
1913 }
1914
1915 info = g_new0(GuestOSInfo, 1);
1916
1917 info->has_kernel_version = true;
1918 info->kernel_version = g_strdup_printf("%lu.%lu",
1919 os_version.dwMajorVersion,
1920 os_version.dwMinorVersion);
1921 info->has_kernel_release = true;
1922 info->kernel_release = g_strdup_printf("%lu",
1923 os_version.dwBuildNumber);
1924 info->has_machine = true;
1925 info->machine = ga_get_current_arch();
1926
1927 info->has_id = true;
1928 info->id = g_strdup("mswindows");
1929 info->has_name = true;
1930 info->name = g_strdup("Microsoft Windows");
1931 info->has_pretty_name = true;
1932 info->pretty_name = product_name;
1933 info->has_version = true;
1934 info->version = ga_get_win_name(&os_version, false);
1935 info->has_version_id = true;
1936 info->version_id = ga_get_win_name(&os_version, true);
1937 info->has_variant = true;
1938 info->variant = g_strdup(server ? "server" : "client");
1939 info->has_variant_id = true;
1940 info->variant_id = g_strdup(server ? "server" : "client");
1941
1942 return info;
1943 }