1 /*
2 * QEMU Guest Agent win32-specific command implementations
3 *
4 * Copyright IBM Corp. 2012
5 *
6 * Authors:
7 * Michael Roth <mdroth@linux.vnet.ibm.com>
8 * Gal Hammer <ghammer@redhat.com>
9 *
10 * This work is licensed under the terms of the GNU GPL, version 2 or later.
11 * See the COPYING file in the top-level directory.
12 */
13 #include "qemu/osdep.h"
14
15 #include <wtypes.h>
16 #include <powrprof.h>
17 #include <winsock2.h>
18 #include <ws2tcpip.h>
19 #include <iptypes.h>
20 #include <iphlpapi.h>
21 #include <winioctl.h>
22 #include <ntddscsi.h>
23 #include <setupapi.h>
24 #include <cfgmgr32.h>
25 #include <initguid.h>
26 #include <devpropdef.h>
27 #include <lm.h>
28 #include <wtsapi32.h>
29 #include <wininet.h>
30
31 #include "guest-agent-core.h"
32 #include "vss-win32.h"
33 #include "qga-qapi-commands.h"
34 #include "qapi/error.h"
35 #include "qapi/qmp/qerror.h"
36 #include "qemu/queue.h"
37 #include "qemu/host-utils.h"
38 #include "qemu/base64.h"
39 #include "commands-common.h"
40
41 /*
42 * The following should be in devpkey.h, but it isn't. The key names were
43 * prefixed to avoid (future) name clashes. Once the definitions get into
44 * mingw the following lines can be removed.
45 */
46 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5,
47 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10);
48 /* DEVPROP_TYPE_STRING */
49 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c,
50 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3);
51 /* DEVPROP_TYPE_STRING_LIST */
52 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d,
53 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2);
54 /* DEVPROP_TYPE_FILETIME */
55 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d,
56 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3);
57 /* DEVPROP_TYPE_STRING */
58 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */
59 #ifndef CM_Get_DevNode_Property
60 #pragma GCC diagnostic push
61 #pragma GCC diagnostic ignored "-Wredundant-decls"
62 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
63 DEVINST dnDevInst,
64 CONST DEVPROPKEY * PropertyKey,
65 DEVPROPTYPE * PropertyType,
66 PBYTE PropertyBuffer,
67 PULONG PropertyBufferSize,
68 ULONG ulFlags
69 );
70 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW
71 #pragma GCC diagnostic pop
72 #endif
73
74 #ifndef SHTDN_REASON_FLAG_PLANNED
75 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
76 #endif
77
78 /* multiple of 100 nanoseconds elapsed between windows baseline
79 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
80 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
81 (365 * (1970 - 1601) + \
82 (1970 - 1601) / 4 - 3))
83
84 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
85
86 struct GuestFileHandle {
87 int64_t id;
88 HANDLE fh;
89 QTAILQ_ENTRY(GuestFileHandle) next;
90 };
91
92 static struct {
93 QTAILQ_HEAD(, GuestFileHandle) filehandles;
94 } guest_file_state = {
95 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
96 };
97
98 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
99
100 typedef struct OpenFlags {
101 const char *forms;
102 DWORD desired_access;
103 DWORD creation_disposition;
104 } OpenFlags;
105 static OpenFlags guest_file_open_modes[] = {
106 {"r", GENERIC_READ, OPEN_EXISTING},
107 {"rb", GENERIC_READ, OPEN_EXISTING},
108 {"w", GENERIC_WRITE, CREATE_ALWAYS},
109 {"wb", GENERIC_WRITE, CREATE_ALWAYS},
110 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
111 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
112 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
113 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
114 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
115 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
116 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
117 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS },
118 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS },
119 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }
120 };
121
122 #define debug_error(msg) do { \
123 char *suffix = g_win32_error_message(GetLastError()); \
124 g_debug("%s: %s", (msg), suffix); \
125 g_free(suffix); \
126 } while (0)
127
find_open_flag(const char * mode_str)128 static OpenFlags *find_open_flag(const char *mode_str)
129 {
130 int mode;
131 Error **errp = NULL;
132
133 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
134 OpenFlags *flags = guest_file_open_modes + mode;
135
136 if (strcmp(flags->forms, mode_str) == 0) {
137 return flags;
138 }
139 }
140
141 error_setg(errp, "invalid file open mode '%s'", mode_str);
142 return NULL;
143 }
144
guest_file_handle_add(HANDLE fh,Error ** errp)145 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
146 {
147 GuestFileHandle *gfh;
148 int64_t handle;
149
150 handle = ga_get_fd_handle(ga_state, errp);
151 if (handle < 0) {
152 return -1;
153 }
154 gfh = g_new0(GuestFileHandle, 1);
155 gfh->id = handle;
156 gfh->fh = fh;
157 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
158
159 return handle;
160 }
161
guest_file_handle_find(int64_t id,Error ** errp)162 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
163 {
164 GuestFileHandle *gfh;
165 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
166 if (gfh->id == id) {
167 return gfh;
168 }
169 }
170 error_setg(errp, "handle '%" PRId64 "' has not been found", id);
171 return NULL;
172 }
173
handle_set_nonblocking(HANDLE fh)174 static void handle_set_nonblocking(HANDLE fh)
175 {
176 DWORD file_type, pipe_state;
177 file_type = GetFileType(fh);
178 if (file_type != FILE_TYPE_PIPE) {
179 return;
180 }
181 /* If file_type == FILE_TYPE_PIPE, according to MSDN
182 * the specified file is socket or named pipe */
183 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
184 NULL, NULL, NULL, 0)) {
185 return;
186 }
187 /* The fd is named pipe fd */
188 if (pipe_state & PIPE_NOWAIT) {
189 return;
190 }
191
192 pipe_state |= PIPE_NOWAIT;
193 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
194 }
195
qmp_guest_file_open(const char * path,const char * mode,Error ** errp)196 int64_t qmp_guest_file_open(const char *path, const char *mode, Error **errp)
197 {
198 int64_t fd = -1;
199 HANDLE fh;
200 HANDLE templ_file = NULL;
201 DWORD share_mode = FILE_SHARE_READ;
202 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
203 LPSECURITY_ATTRIBUTES sa_attr = NULL;
204 OpenFlags *guest_flags;
205 GError *gerr = NULL;
206 wchar_t *w_path = NULL;
207
208 if (!mode) {
209 mode = "r";
210 }
211 slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
212 guest_flags = find_open_flag(mode);
213 if (guest_flags == NULL) {
214 error_setg(errp, "invalid file open mode");
215 goto done;
216 }
217
218 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
219 if (!w_path) {
220 error_setg(errp, "can't convert 'path' to UTF-16: %s",
221 gerr->message);
222 g_error_free(gerr);
223 goto done;
224 }
225
226 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
227 guest_flags->creation_disposition, flags_and_attr,
228 templ_file);
229 if (fh == INVALID_HANDLE_VALUE) {
230 error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
231 path);
232 goto done;
233 }
234
235 /* set fd non-blocking to avoid common use cases (like reading from a
236 * named pipe) from hanging the agent
237 */
238 handle_set_nonblocking(fh);
239
240 fd = guest_file_handle_add(fh, errp);
241 if (fd < 0) {
242 CloseHandle(fh);
243 error_setg(errp, "failed to add handle to qmp handle table");
244 goto done;
245 }
246
247 slog("guest-file-open, handle: % " PRId64, fd);
248
249 done:
250 g_free(w_path);
251 return fd;
252 }
253
qmp_guest_file_close(int64_t handle,Error ** errp)254 void qmp_guest_file_close(int64_t handle, Error **errp)
255 {
256 bool ret;
257 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
258 slog("guest-file-close called, handle: %" PRId64, handle);
259 if (gfh == NULL) {
260 return;
261 }
262 ret = CloseHandle(gfh->fh);
263 if (!ret) {
264 error_setg_win32(errp, GetLastError(), "failed close handle");
265 return;
266 }
267
268 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
269 g_free(gfh);
270 }
271
acquire_privilege(const char * name,Error ** errp)272 static void acquire_privilege(const char *name, Error **errp)
273 {
274 HANDLE token = NULL;
275 TOKEN_PRIVILEGES priv;
276
277 if (OpenProcessToken(GetCurrentProcess(),
278 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token))
279 {
280 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
281 error_setg(errp, "no luid for requested privilege");
282 goto out;
283 }
284
285 priv.PrivilegeCount = 1;
286 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
287
288 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
289 error_setg(errp, "unable to acquire requested privilege");
290 goto out;
291 }
292
293 } else {
294 error_setg(errp, "failed to open privilege token");
295 }
296
297 out:
298 if (token) {
299 CloseHandle(token);
300 }
301 }
302
execute_async(DWORD WINAPI (* func)(LPVOID),LPVOID opaque,Error ** errp)303 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
304 Error **errp)
305 {
306 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
307 if (!thread) {
308 error_setg(errp, "failed to dispatch asynchronous command");
309 }
310 }
311
qmp_guest_shutdown(const char * mode,Error ** errp)312 void qmp_guest_shutdown(const char *mode, Error **errp)
313 {
314 Error *local_err = NULL;
315 UINT shutdown_flag = EWX_FORCE;
316
317 slog("guest-shutdown called, mode: %s", mode);
318
319 if (!mode || strcmp(mode, "powerdown") == 0) {
320 shutdown_flag |= EWX_POWEROFF;
321 } else if (strcmp(mode, "halt") == 0) {
322 shutdown_flag |= EWX_SHUTDOWN;
323 } else if (strcmp(mode, "reboot") == 0) {
324 shutdown_flag |= EWX_REBOOT;
325 } else {
326 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
327 "'halt', 'powerdown', or 'reboot'");
328 return;
329 }
330
331 /* Request a shutdown privilege, but try to shut down the system
332 anyway. */
333 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
334 if (local_err) {
335 error_propagate(errp, local_err);
336 return;
337 }
338
339 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
340 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
341 slog("guest-shutdown failed: %s", emsg);
342 error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
343 }
344 }
345
guest_file_read_unsafe(GuestFileHandle * gfh,int64_t count,Error ** errp)346 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
347 int64_t count, Error **errp)
348 {
349 GuestFileRead *read_data = NULL;
350 guchar *buf;
351 HANDLE fh = gfh->fh;
352 bool is_ok;
353 DWORD read_count;
354
355 buf = g_malloc0(count + 1);
356 is_ok = ReadFile(fh, buf, count, &read_count, NULL);
357 if (!is_ok) {
358 error_setg_win32(errp, GetLastError(), "failed to read file");
359 } else {
360 buf[read_count] = 0;
361 read_data = g_new0(GuestFileRead, 1);
362 read_data->count = (size_t)read_count;
363 read_data->eof = read_count == 0;
364
365 if (read_count != 0) {
366 read_data->buf_b64 = g_base64_encode(buf, read_count);
367 }
368 }
369 g_free(buf);
370
371 return read_data;
372 }
373
qmp_guest_file_write(int64_t handle,const char * buf_b64,bool has_count,int64_t count,Error ** errp)374 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
375 bool has_count, int64_t count,
376 Error **errp)
377 {
378 GuestFileWrite *write_data = NULL;
379 guchar *buf;
380 gsize buf_len;
381 bool is_ok;
382 DWORD write_count;
383 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
384 HANDLE fh;
385
386 if (!gfh) {
387 return NULL;
388 }
389 fh = gfh->fh;
390 buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
391 if (!buf) {
392 return NULL;
393 }
394
395 if (!has_count) {
396 count = buf_len;
397 } else if (count < 0 || count > buf_len) {
398 error_setg(errp, "value '%" PRId64
399 "' is invalid for argument count", count);
400 goto done;
401 }
402
403 is_ok = WriteFile(fh, buf, count, &write_count, NULL);
404 if (!is_ok) {
405 error_setg_win32(errp, GetLastError(), "failed to write to file");
406 slog("guest-file-write-failed, handle: %" PRId64, handle);
407 } else {
408 write_data = g_new0(GuestFileWrite, 1);
409 write_data->count = (size_t) write_count;
410 }
411
412 done:
413 g_free(buf);
414 return write_data;
415 }
416
qmp_guest_file_seek(int64_t handle,int64_t offset,GuestFileWhence * whence_code,Error ** errp)417 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
418 GuestFileWhence *whence_code,
419 Error **errp)
420 {
421 GuestFileHandle *gfh;
422 GuestFileSeek *seek_data;
423 HANDLE fh;
424 LARGE_INTEGER new_pos, off_pos;
425 off_pos.QuadPart = offset;
426 BOOL res;
427 int whence;
428 Error *err = NULL;
429
430 gfh = guest_file_handle_find(handle, errp);
431 if (!gfh) {
432 return NULL;
433 }
434
435 /* We stupidly exposed 'whence':'int' in our qapi */
436 whence = ga_parse_whence(whence_code, &err);
437 if (err) {
438 error_propagate(errp, err);
439 return NULL;
440 }
441
442 fh = gfh->fh;
443 res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
444 if (!res) {
445 error_setg_win32(errp, GetLastError(), "failed to seek file");
446 return NULL;
447 }
448 seek_data = g_new0(GuestFileSeek, 1);
449 seek_data->position = new_pos.QuadPart;
450 return seek_data;
451 }
452
qmp_guest_file_flush(int64_t handle,Error ** errp)453 void qmp_guest_file_flush(int64_t handle, Error **errp)
454 {
455 HANDLE fh;
456 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
457 if (!gfh) {
458 return;
459 }
460
461 fh = gfh->fh;
462 if (!FlushFileBuffers(fh)) {
463 error_setg_win32(errp, GetLastError(), "failed to flush file");
464 }
465 }
466
467 static GuestDiskBusType win2qemu[] = {
468 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
469 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
470 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
471 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
472 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
473 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
474 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
475 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
476 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
477 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
478 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
479 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
480 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
481 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
482 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
483 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
484 /*
485 * BusTypeSpaces currently is not supported
486 */
487 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN,
488 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME,
489 };
490
find_bus_type(STORAGE_BUS_TYPE bus)491 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
492 {
493 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
494 return GUEST_DISK_BUS_TYPE_UNKNOWN;
495 }
496 return win2qemu[(int)bus];
497 }
498
get_pci_address_for_device(GuestPCIAddress * pci,HDEVINFO dev_info)499 static void get_pci_address_for_device(GuestPCIAddress *pci,
500 HDEVINFO dev_info)
501 {
502 SP_DEVINFO_DATA dev_info_data;
503 DWORD j;
504 DWORD size;
505 bool partial_pci = false;
506
507 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
508
509 for (j = 0;
510 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data);
511 j++) {
512 DWORD addr, bus, ui_slot, type;
513 int func, slot;
514 size = sizeof(DWORD);
515
516 /*
517 * There is no need to allocate buffer in the next functions. The
518 * size is known and ULONG according to
519 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
520 */
521 if (!SetupDiGetDeviceRegistryProperty(
522 dev_info, &dev_info_data, SPDRP_BUSNUMBER,
523 &type, (PBYTE)&bus, size, NULL)) {
524 debug_error("failed to get PCI bus");
525 bus = -1;
526 partial_pci = true;
527 }
528
529 /*
530 * The function retrieves the device's address. This value will be
531 * transformed into device function and number
532 */
533 if (!SetupDiGetDeviceRegistryProperty(
534 dev_info, &dev_info_data, SPDRP_ADDRESS,
535 &type, (PBYTE)&addr, size, NULL)) {
536 debug_error("failed to get PCI address");
537 addr = -1;
538 partial_pci = true;
539 }
540
541 /*
542 * This call returns UINumber of DEVICE_CAPABILITIES structure.
543 * This number is typically a user-perceived slot number.
544 */
545 if (!SetupDiGetDeviceRegistryProperty(
546 dev_info, &dev_info_data, SPDRP_UI_NUMBER,
547 &type, (PBYTE)&ui_slot, size, NULL)) {
548 debug_error("failed to get PCI slot");
549 ui_slot = -1;
550 partial_pci = true;
551 }
552
553 /*
554 * SetupApi gives us the same information as driver with
555 * IoGetDeviceProperty. According to Microsoft:
556 *
557 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
558 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
559 * SPDRP_ADDRESS is propertyAddress, so we do the same.
560 *
561 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
562 */
563 if (partial_pci) {
564 pci->domain = -1;
565 pci->slot = -1;
566 pci->function = -1;
567 pci->bus = -1;
568 continue;
569 } else {
570 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
571 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
572 if ((int)ui_slot != slot) {
573 g_debug("mismatch with reported slot values: %d vs %d",
574 (int)ui_slot, slot);
575 }
576 pci->domain = 0;
577 pci->slot = (int)ui_slot;
578 pci->function = func;
579 pci->bus = (int)bus;
580 return;
581 }
582 }
583 }
584
get_empty_pci_address(void)585 static GuestPCIAddress *get_empty_pci_address(void)
586 {
587 GuestPCIAddress *pci = NULL;
588
589 pci = g_malloc0(sizeof(*pci));
590 pci->domain = -1;
591 pci->slot = -1;
592 pci->function = -1;
593 pci->bus = -1;
594 return pci;
595 }
596
get_pci_info(int number,Error ** errp)597 static GuestPCIAddress *get_pci_info(int number, Error **errp)
598 {
599 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
600 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE;
601
602 SP_DEVINFO_DATA dev_info_data;
603 SP_DEVICE_INTERFACE_DATA dev_iface_data;
604 HANDLE dev_file;
605 int i;
606 GuestPCIAddress *pci = get_empty_pci_address();
607
608 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
609 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
610 if (dev_info == INVALID_HANDLE_VALUE) {
611 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
612 goto end;
613 }
614
615 g_debug("enumerating devices");
616 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
617 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
618 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
619 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
620 STORAGE_DEVICE_NUMBER sdn;
621 g_autofree char *parent_dev_id = NULL;
622 SP_DEVINFO_DATA parent_dev_info_data;
623 DWORD size = 0;
624
625 g_debug("getting device path");
626 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
627 &GUID_DEVINTERFACE_DISK, 0,
628 &dev_iface_data)) {
629 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
630 pdev_iface_detail_data,
631 size, &size,
632 &dev_info_data)) {
633 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
634 pdev_iface_detail_data = g_malloc(size);
635 pdev_iface_detail_data->cbSize =
636 sizeof(*pdev_iface_detail_data);
637 } else {
638 error_setg_win32(errp, GetLastError(),
639 "failed to get device interfaces");
640 goto end;
641 }
642 }
643
644 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
645 pdev_iface_detail_data,
646 size, &size,
647 &dev_info_data)) {
648 // pdev_iface_detail_data already is allocated
649 error_setg_win32(errp, GetLastError(),
650 "failed to get device interfaces");
651 goto end;
652 }
653
654 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
655 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
656 NULL);
657
658 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
659 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
660 CloseHandle(dev_file);
661 error_setg_win32(errp, GetLastError(),
662 "failed to get device slot number");
663 goto end;
664 }
665
666 CloseHandle(dev_file);
667 if (sdn.DeviceNumber != number) {
668 continue;
669 }
670 } else {
671 error_setg_win32(errp, GetLastError(),
672 "failed to get device interfaces");
673 goto end;
674 }
675
676 g_debug("found device slot %d. Getting storage controller", number);
677 {
678 CONFIGRET cr;
679 DEVINST dev_inst, parent_dev_inst;
680 ULONG dev_id_size = 0;
681
682 size = 0;
683 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
684 parent_dev_id, size, &size)) {
685 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
686 parent_dev_id = g_malloc(size);
687 } else {
688 error_setg_win32(errp, GetLastError(),
689 "failed to get device instance ID");
690 goto end;
691 }
692 }
693
694 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
695 parent_dev_id, size, &size)) {
696 // parent_dev_id already is allocated
697 error_setg_win32(errp, GetLastError(),
698 "failed to get device instance ID");
699 goto end;
700 }
701
702 /*
703 * CM API used here as opposed to
704 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
705 * which exports are only available in mingw-w64 6+
706 */
707 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
708 if (cr != CR_SUCCESS) {
709 g_error("CM_Locate_DevInst failed with code %lx", cr);
710 error_setg_win32(errp, GetLastError(),
711 "failed to get device instance");
712 goto end;
713 }
714 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
715 if (cr != CR_SUCCESS) {
716 g_error("CM_Get_Parent failed with code %lx", cr);
717 error_setg_win32(errp, GetLastError(),
718 "failed to get parent device instance");
719 goto end;
720 }
721
722 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
723 if (cr != CR_SUCCESS) {
724 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
725 error_setg_win32(errp, GetLastError(),
726 "failed to get parent device ID length");
727 goto end;
728 }
729
730 ++dev_id_size;
731 if (dev_id_size > size) {
732 g_free(parent_dev_id);
733 parent_dev_id = g_malloc(dev_id_size);
734 }
735
736 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
737 0);
738 if (cr != CR_SUCCESS) {
739 g_error("CM_Get_Device_ID failed with code %lx", cr);
740 error_setg_win32(errp, GetLastError(),
741 "failed to get parent device ID");
742 goto end;
743 }
744 }
745
746 g_debug("querying storage controller %s for PCI information",
747 parent_dev_id);
748 parent_dev_info =
749 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
750 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
751
752 if (parent_dev_info == INVALID_HANDLE_VALUE) {
753 error_setg_win32(errp, GetLastError(),
754 "failed to get parent device");
755 goto end;
756 }
757
758 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
759 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
760 error_setg_win32(errp, GetLastError(),
761 "failed to get parent device data");
762 goto end;
763 }
764
765 get_pci_address_for_device(pci, parent_dev_info);
766
767 break;
768 }
769
770 end:
771 if (parent_dev_info != INVALID_HANDLE_VALUE) {
772 SetupDiDestroyDeviceInfoList(parent_dev_info);
773 }
774 if (dev_info != INVALID_HANDLE_VALUE) {
775 SetupDiDestroyDeviceInfoList(dev_info);
776 }
777 return pci;
778 }
779
get_disk_properties(HANDLE vol_h,GuestDiskAddress * disk,Error ** errp)780 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
781 Error **errp)
782 {
783 STORAGE_PROPERTY_QUERY query;
784 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
785 DWORD received;
786 ULONG size = sizeof(buf);
787
788 dev_desc = &buf;
789 query.PropertyId = StorageDeviceProperty;
790 query.QueryType = PropertyStandardQuery;
791
792 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
793 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
794 size, &received, NULL)) {
795 error_setg_win32(errp, GetLastError(), "failed to get bus type");
796 return;
797 }
798 disk->bus_type = find_bus_type(dev_desc->BusType);
799 g_debug("bus type %d", disk->bus_type);
800
801 /* Query once more. Now with long enough buffer. */
802 size = dev_desc->Size;
803 dev_desc = g_malloc0(size);
804 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
805 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
806 size, &received, NULL)) {
807 error_setg_win32(errp, GetLastError(), "failed to get serial number");
808 g_debug("failed to get serial number");
809 goto out_free;
810 }
811 if (dev_desc->SerialNumberOffset > 0) {
812 const char *serial;
813 size_t len;
814
815 if (dev_desc->SerialNumberOffset >= received) {
816 error_setg(errp, "failed to get serial number: offset outside the buffer");
817 g_debug("serial number offset outside the buffer");
818 goto out_free;
819 }
820 serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
821 len = received - dev_desc->SerialNumberOffset;
822 g_debug("serial number \"%s\"", serial);
823 if (*serial != 0) {
824 disk->serial = g_strndup(serial, len);
825 }
826 }
827 out_free:
828 g_free(dev_desc);
829
830 return;
831 }
832
get_single_disk_info(int disk_number,GuestDiskAddress * disk,Error ** errp)833 static void get_single_disk_info(int disk_number,
834 GuestDiskAddress *disk, Error **errp)
835 {
836 SCSI_ADDRESS addr, *scsi_ad;
837 DWORD len;
838 HANDLE disk_h;
839 Error *local_err = NULL;
840
841 scsi_ad = &addr;
842
843 g_debug("getting disk info for: %s", disk->dev);
844 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
845 0, NULL);
846 if (disk_h == INVALID_HANDLE_VALUE) {
847 error_setg_win32(errp, GetLastError(), "failed to open disk");
848 return;
849 }
850
851 get_disk_properties(disk_h, disk, &local_err);
852 if (local_err) {
853 error_propagate(errp, local_err);
854 goto err_close;
855 }
856
857 g_debug("bus type %d", disk->bus_type);
858 /* always set pci_controller as required by schema. get_pci_info() should
859 * report -1 values for non-PCI buses rather than fail. fail the command
860 * if that doesn't hold since that suggests some other unexpected
861 * breakage
862 */
863 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) {
864 disk->pci_controller = get_empty_pci_address();
865 } else {
866 disk->pci_controller = get_pci_info(disk_number, &local_err);
867 if (local_err) {
868 error_propagate(errp, local_err);
869 goto err_close;
870 }
871 }
872 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
873 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
874 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
875 /* This bus type is not supported before Windows Server 2003 SP1 */
876 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
877 ) {
878 /* We are able to use the same ioctls for different bus types
879 * according to Microsoft docs
880 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
881 g_debug("getting SCSI info");
882 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
883 sizeof(SCSI_ADDRESS), &len, NULL)) {
884 disk->unit = addr.Lun;
885 disk->target = addr.TargetId;
886 disk->bus = addr.PathId;
887 }
888 /* We do not set error in this case, because we still have enough
889 * information about volume. */
890 }
891
892 err_close:
893 CloseHandle(disk_h);
894 return;
895 }
896
897 /* VSS provider works with volumes, thus there is no difference if
898 * the volume consist of spanned disks. Info about the first disk in the
899 * volume is returned for the spanned disk group (LVM) */
build_guest_disk_info(char * guid,Error ** errp)900 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
901 {
902 Error *local_err = NULL;
903 GuestDiskAddressList *list = NULL;
904 GuestDiskAddress *disk = NULL;
905 int i;
906 HANDLE vol_h;
907 DWORD size;
908 PVOLUME_DISK_EXTENTS extents = NULL;
909
910 /* strip final backslash */
911 char *name = g_strdup(guid);
912 if (g_str_has_suffix(name, "\\")) {
913 name[strlen(name) - 1] = 0;
914 }
915
916 g_debug("opening %s", name);
917 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
918 0, NULL);
919 if (vol_h == INVALID_HANDLE_VALUE) {
920 error_setg_win32(errp, GetLastError(), "failed to open volume");
921 goto out;
922 }
923
924 /* Get list of extents */
925 g_debug("getting disk extents");
926 size = sizeof(VOLUME_DISK_EXTENTS);
927 extents = g_malloc0(size);
928 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
929 0, extents, size, &size, NULL)) {
930 DWORD last_err = GetLastError();
931 if (last_err == ERROR_MORE_DATA) {
932 /* Try once more with big enough buffer */
933 size = sizeof(VOLUME_DISK_EXTENTS) +
934 (sizeof(DISK_EXTENT) * (extents->NumberOfDiskExtents - 1));
935 g_free(extents);
936 extents = g_malloc0(size);
937 if (!DeviceIoControl(
938 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
939 0, extents, size, NULL, NULL)) {
940 error_setg_win32(errp, GetLastError(),
941 "failed to get disk extents");
942 goto out;
943 }
944 } else if (last_err == ERROR_INVALID_FUNCTION) {
945 /* Possibly CD-ROM or a shared drive. Try to pass the volume */
946 g_debug("volume not on disk");
947 disk = g_new0(GuestDiskAddress, 1);
948 disk->dev = g_strdup(name);
949 get_single_disk_info(0xffffffff, disk, &local_err);
950 if (local_err) {
951 g_debug("failed to get disk info, ignoring error: %s",
952 error_get_pretty(local_err));
953 error_free(local_err);
954 goto out;
955 }
956 QAPI_LIST_PREPEND(list, disk);
957 disk = NULL;
958 goto out;
959 } else {
960 error_setg_win32(errp, GetLastError(),
961 "failed to get disk extents");
962 goto out;
963 }
964 }
965 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
966
967 /* Go through each extent */
968 for (i = 0; i < extents->NumberOfDiskExtents; i++) {
969 disk = g_new0(GuestDiskAddress, 1);
970
971 /* Disk numbers directly correspond to numbers used in UNCs
972 *
973 * See documentation for DISK_EXTENT:
974 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
975 *
976 * See also Naming Files, Paths and Namespaces:
977 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
978 */
979 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
980 extents->Extents[i].DiskNumber);
981
982 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
983 if (local_err) {
984 error_propagate(errp, local_err);
985 goto out;
986 }
987 QAPI_LIST_PREPEND(list, disk);
988 disk = NULL;
989 }
990
991
992 out:
993 if (vol_h != INVALID_HANDLE_VALUE) {
994 CloseHandle(vol_h);
995 }
996 qapi_free_GuestDiskAddress(disk);
997 g_free(extents);
998 g_free(name);
999
1000 return list;
1001 }
1002
qmp_guest_get_disks(Error ** errp)1003 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
1004 {
1005 GuestDiskInfoList *ret = NULL;
1006 HDEVINFO dev_info;
1007 SP_DEVICE_INTERFACE_DATA dev_iface_data;
1008 int i;
1009
1010 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
1011 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
1012 if (dev_info == INVALID_HANDLE_VALUE) {
1013 error_setg_win32(errp, GetLastError(), "failed to get device tree");
1014 return NULL;
1015 }
1016
1017 g_debug("enumerating devices");
1018 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
1019 for (i = 0;
1020 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
1021 i, &dev_iface_data);
1022 i++) {
1023 GuestDiskAddress *address = NULL;
1024 GuestDiskInfo *disk = NULL;
1025 Error *local_err = NULL;
1026 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1027 pdev_iface_detail_data = NULL;
1028 STORAGE_DEVICE_NUMBER sdn;
1029 HANDLE dev_file;
1030 DWORD size = 0;
1031 BOOL result;
1032 int attempt;
1033
1034 g_debug(" getting device path");
1035 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1036 result = SetupDiGetDeviceInterfaceDetail(dev_info,
1037 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1038 if (result) {
1039 break;
1040 }
1041 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1042 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1043 size);
1044 pdev_iface_detail_data->cbSize =
1045 sizeof(*pdev_iface_detail_data);
1046 } else {
1047 g_debug("failed to get device interface details");
1048 break;
1049 }
1050 }
1051 if (!result) {
1052 g_debug("skipping device");
1053 continue;
1054 }
1055
1056 g_debug(" device: %s", pdev_iface_detail_data->DevicePath);
1057 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1058 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1059 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1060 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1061 CloseHandle(dev_file);
1062 debug_error("failed to get storage device number");
1063 continue;
1064 }
1065 CloseHandle(dev_file);
1066
1067 disk = g_new0(GuestDiskInfo, 1);
1068 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1069 sdn.DeviceNumber);
1070
1071 g_debug(" number: %lu", sdn.DeviceNumber);
1072 address = g_new0(GuestDiskAddress, 1);
1073 address->dev = g_strdup(disk->name);
1074 get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1075 if (local_err) {
1076 g_debug("failed to get disk info: %s",
1077 error_get_pretty(local_err));
1078 error_free(local_err);
1079 qapi_free_GuestDiskAddress(address);
1080 address = NULL;
1081 } else {
1082 disk->address = address;
1083 }
1084
1085 QAPI_LIST_PREPEND(ret, disk);
1086 }
1087
1088 SetupDiDestroyDeviceInfoList(dev_info);
1089 return ret;
1090 }
1091
build_guest_fsinfo(char * guid,Error ** errp)1092 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
1093 {
1094 DWORD info_size;
1095 char mnt, *mnt_point;
1096 wchar_t wfs_name[32];
1097 char fs_name[32];
1098 wchar_t vol_info[MAX_PATH + 1];
1099 size_t len;
1100 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1101 GuestFilesystemInfo *fs = NULL;
1102 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1103
1104 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1105 if (GetLastError() != ERROR_MORE_DATA) {
1106 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1107 return NULL;
1108 }
1109
1110 mnt_point = g_malloc(info_size + 1);
1111 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1112 &info_size)) {
1113 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1114 goto free;
1115 }
1116
1117 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1118 FILE_ATTRIBUTE_NORMAL |
1119 FILE_FLAG_BACKUP_SEMANTICS, NULL);
1120 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1121 error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1122 goto free;
1123 }
1124
1125 len = strlen(mnt_point);
1126 mnt_point[len] = '\\';
1127 mnt_point[len + 1] = 0;
1128
1129 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1130 sizeof(vol_info), NULL, NULL, NULL,
1131 (LPWSTR) & wfs_name, sizeof(wfs_name))) {
1132 if (GetLastError() != ERROR_NOT_READY) {
1133 error_setg_win32(errp, GetLastError(), "failed to get volume info");
1134 }
1135 goto free;
1136 }
1137
1138 fs = g_malloc(sizeof(*fs));
1139 fs->name = g_strdup(guid);
1140 fs->has_total_bytes = false;
1141 fs->has_total_bytes_privileged = false;
1142 fs->has_used_bytes = false;
1143 if (len == 0) {
1144 fs->mountpoint = g_strdup("System Reserved");
1145 } else {
1146 fs->mountpoint = g_strndup(mnt_point, len);
1147 if (GetDiskFreeSpaceEx(fs->mountpoint,
1148 (PULARGE_INTEGER) & i64FreeBytesToCaller,
1149 (PULARGE_INTEGER) & i64TotalBytes,
1150 (PULARGE_INTEGER) & i64FreeBytes)) {
1151 fs->used_bytes = i64TotalBytes - i64FreeBytes;
1152 fs->total_bytes = i64TotalBytes;
1153 fs->has_total_bytes = true;
1154 fs->has_used_bytes = true;
1155 }
1156 }
1157 wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1158 fs->type = g_strdup(fs_name);
1159 fs->disk = build_guest_disk_info(guid, errp);
1160 free:
1161 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1162 CloseHandle(hLocalDiskHandle);
1163 }
1164 g_free(mnt_point);
1165 return fs;
1166 }
1167
qmp_guest_get_fsinfo(Error ** errp)1168 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1169 {
1170 HANDLE vol_h;
1171 GuestFilesystemInfoList *ret = NULL;
1172 char guid[256];
1173
1174 vol_h = FindFirstVolume(guid, sizeof(guid));
1175 if (vol_h == INVALID_HANDLE_VALUE) {
1176 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1177 return NULL;
1178 }
1179
1180 do {
1181 Error *local_err = NULL;
1182 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1183 if (local_err) {
1184 g_debug("failed to get filesystem info, ignoring error: %s",
1185 error_get_pretty(local_err));
1186 error_free(local_err);
1187 continue;
1188 }
1189 QAPI_LIST_PREPEND(ret, info);
1190 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1191
1192 if (GetLastError() != ERROR_NO_MORE_FILES) {
1193 error_setg_win32(errp, GetLastError(), "failed to find next volume");
1194 }
1195
1196 FindVolumeClose(vol_h);
1197 return ret;
1198 }
1199
1200 /*
1201 * Return status of freeze/thaw
1202 */
qmp_guest_fsfreeze_status(Error ** errp)1203 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1204 {
1205 if (!vss_initialized()) {
1206 error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1207 return 0;
1208 }
1209
1210 if (ga_is_frozen(ga_state)) {
1211 return GUEST_FSFREEZE_STATUS_FROZEN;
1212 }
1213
1214 return GUEST_FSFREEZE_STATUS_THAWED;
1215 }
1216
1217 /*
1218 * Freeze local file systems using Volume Shadow-copy Service.
1219 * The frozen state is limited for up to 10 seconds by VSS.
1220 */
qmp_guest_fsfreeze_freeze(Error ** errp)1221 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1222 {
1223 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1224 }
1225
qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,strList * mountpoints,Error ** errp)1226 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1227 strList *mountpoints,
1228 Error **errp)
1229 {
1230 int i;
1231 Error *local_err = NULL;
1232
1233 if (!vss_initialized()) {
1234 error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1235 return 0;
1236 }
1237
1238 slog("guest-fsfreeze called");
1239
1240 /* cannot risk guest agent blocking itself on a write in this state */
1241 ga_set_frozen(ga_state);
1242
1243 qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1244 if (local_err) {
1245 error_propagate(errp, local_err);
1246 goto error;
1247 }
1248
1249 return i;
1250
1251 error:
1252 local_err = NULL;
1253 qmp_guest_fsfreeze_thaw(&local_err);
1254 if (local_err) {
1255 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1256 error_free(local_err);
1257 }
1258 return 0;
1259 }
1260
1261 /*
1262 * Thaw local file systems using Volume Shadow-copy Service.
1263 */
qmp_guest_fsfreeze_thaw(Error ** errp)1264 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1265 {
1266 int i;
1267
1268 if (!vss_initialized()) {
1269 error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1270 return 0;
1271 }
1272
1273 qga_vss_fsfreeze(&i, false, NULL, errp);
1274
1275 ga_unset_frozen(ga_state);
1276 return i;
1277 }
1278
guest_fsfreeze_cleanup(void)1279 static void guest_fsfreeze_cleanup(void)
1280 {
1281 Error *err = NULL;
1282
1283 if (!vss_initialized()) {
1284 return;
1285 }
1286
1287 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1288 qmp_guest_fsfreeze_thaw(&err);
1289 if (err) {
1290 slog("failed to clean up frozen filesystems: %s",
1291 error_get_pretty(err));
1292 error_free(err);
1293 }
1294 }
1295
1296 vss_deinit(true);
1297 }
1298
1299 /*
1300 * Walk list of mounted file systems in the guest, and discard unused
1301 * areas.
1302 */
1303 GuestFilesystemTrimResponse *
qmp_guest_fstrim(bool has_minimum,int64_t minimum,Error ** errp)1304 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1305 {
1306 GuestFilesystemTrimResponse *resp;
1307 HANDLE handle;
1308 WCHAR guid[MAX_PATH] = L"";
1309 OSVERSIONINFO osvi;
1310 BOOL win8_or_later;
1311
1312 ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1313 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1314 GetVersionEx(&osvi);
1315 win8_or_later = (osvi.dwMajorVersion > 6 ||
1316 ((osvi.dwMajorVersion == 6) &&
1317 (osvi.dwMinorVersion >= 2)));
1318 if (!win8_or_later) {
1319 error_setg(errp, "fstrim is only supported for Win8+");
1320 return NULL;
1321 }
1322
1323 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1324 if (handle == INVALID_HANDLE_VALUE) {
1325 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1326 return NULL;
1327 }
1328
1329 resp = g_new0(GuestFilesystemTrimResponse, 1);
1330
1331 do {
1332 GuestFilesystemTrimResult *res;
1333 PWCHAR uc_path;
1334 DWORD char_count = 0;
1335 char *path, *out;
1336 GError *gerr = NULL;
1337 gchar *argv[4];
1338
1339 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1340
1341 if (GetLastError() != ERROR_MORE_DATA) {
1342 continue;
1343 }
1344 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1345 continue;
1346 }
1347
1348 uc_path = g_new(WCHAR, char_count);
1349 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1350 &char_count) || !*uc_path) {
1351 /* strange, but this condition could be faced even with size == 2 */
1352 g_free(uc_path);
1353 continue;
1354 }
1355
1356 res = g_new0(GuestFilesystemTrimResult, 1);
1357
1358 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1359
1360 g_free(uc_path);
1361
1362 if (!path) {
1363 res->error = g_strdup(gerr->message);
1364 g_error_free(gerr);
1365 break;
1366 }
1367
1368 res->path = path;
1369
1370 QAPI_LIST_PREPEND(resp->paths, res);
1371
1372 memset(argv, 0, sizeof(argv));
1373 argv[0] = (gchar *)"defrag.exe";
1374 argv[1] = (gchar *)"/L";
1375 argv[2] = path;
1376
1377 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1378 &out /* stdout */, NULL /* stdin */,
1379 NULL, &gerr)) {
1380 res->error = g_strdup(gerr->message);
1381 g_error_free(gerr);
1382 } else {
1383 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1384 Error is reported in the output with something like
1385 (x89000020) etc code in the stdout */
1386
1387 int i;
1388 gchar **lines = g_strsplit(out, "\r\n", 0);
1389 g_free(out);
1390
1391 for (i = 0; lines[i] != NULL; i++) {
1392 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1393 continue;
1394 }
1395 res->error = g_strdup(lines[i]);
1396 break;
1397 }
1398 g_strfreev(lines);
1399 }
1400 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1401
1402 FindVolumeClose(handle);
1403 return resp;
1404 }
1405
1406 typedef enum {
1407 GUEST_SUSPEND_MODE_DISK,
1408 GUEST_SUSPEND_MODE_RAM
1409 } GuestSuspendMode;
1410
check_suspend_mode(GuestSuspendMode mode,Error ** errp)1411 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1412 {
1413 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1414
1415 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1416 if (!GetPwrCapabilities(&sys_pwr_caps)) {
1417 error_setg(errp, "failed to determine guest suspend capabilities");
1418 return;
1419 }
1420
1421 switch (mode) {
1422 case GUEST_SUSPEND_MODE_DISK:
1423 if (!sys_pwr_caps.SystemS4) {
1424 error_setg(errp, "suspend-to-disk not supported by OS");
1425 }
1426 break;
1427 case GUEST_SUSPEND_MODE_RAM:
1428 if (!sys_pwr_caps.SystemS3) {
1429 error_setg(errp, "suspend-to-ram not supported by OS");
1430 }
1431 break;
1432 default:
1433 abort();
1434 }
1435 }
1436
do_suspend(LPVOID opaque)1437 static DWORD WINAPI do_suspend(LPVOID opaque)
1438 {
1439 GuestSuspendMode *mode = opaque;
1440 DWORD ret = 0;
1441
1442 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1443 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1444 slog("failed to suspend guest: %s", emsg);
1445 ret = -1;
1446 }
1447 g_free(mode);
1448 return ret;
1449 }
1450
qmp_guest_suspend_disk(Error ** errp)1451 void qmp_guest_suspend_disk(Error **errp)
1452 {
1453 Error *local_err = NULL;
1454 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1455
1456 *mode = GUEST_SUSPEND_MODE_DISK;
1457 check_suspend_mode(*mode, &local_err);
1458 if (local_err) {
1459 goto out;
1460 }
1461 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1462 if (local_err) {
1463 goto out;
1464 }
1465 execute_async(do_suspend, mode, &local_err);
1466
1467 out:
1468 if (local_err) {
1469 error_propagate(errp, local_err);
1470 g_free(mode);
1471 }
1472 }
1473
qmp_guest_suspend_ram(Error ** errp)1474 void qmp_guest_suspend_ram(Error **errp)
1475 {
1476 Error *local_err = NULL;
1477 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1478
1479 *mode = GUEST_SUSPEND_MODE_RAM;
1480 check_suspend_mode(*mode, &local_err);
1481 if (local_err) {
1482 goto out;
1483 }
1484 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1485 if (local_err) {
1486 goto out;
1487 }
1488 execute_async(do_suspend, mode, &local_err);
1489
1490 out:
1491 if (local_err) {
1492 error_propagate(errp, local_err);
1493 g_free(mode);
1494 }
1495 }
1496
guest_get_adapters_addresses(Error ** errp)1497 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1498 {
1499 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1500 ULONG adptr_addrs_len = 0;
1501 DWORD ret;
1502
1503 /* Call the first time to get the adptr_addrs_len. */
1504 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1505 NULL, adptr_addrs, &adptr_addrs_len);
1506
1507 adptr_addrs = g_malloc(adptr_addrs_len);
1508 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1509 NULL, adptr_addrs, &adptr_addrs_len);
1510 if (ret != ERROR_SUCCESS) {
1511 error_setg_win32(errp, ret, "failed to get adapters addresses");
1512 g_free(adptr_addrs);
1513 adptr_addrs = NULL;
1514 }
1515 return adptr_addrs;
1516 }
1517
guest_wctomb_dup(WCHAR * wstr)1518 static char *guest_wctomb_dup(WCHAR *wstr)
1519 {
1520 char *str;
1521 size_t str_size;
1522
1523 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1524 /* add 1 to str_size for NULL terminator */
1525 str = g_malloc(str_size + 1);
1526 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1527 return str;
1528 }
1529
guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS * ip_addr,Error ** errp)1530 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1531 Error **errp)
1532 {
1533 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1534 DWORD len;
1535 int ret;
1536
1537 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1538 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1539 len = sizeof(addr_str);
1540 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1541 ip_addr->Address.iSockaddrLength,
1542 NULL,
1543 addr_str,
1544 &len);
1545 if (ret != 0) {
1546 error_setg_win32(errp, WSAGetLastError(),
1547 "failed address presentation form conversion");
1548 return NULL;
1549 }
1550 return g_strdup(addr_str);
1551 }
1552 return NULL;
1553 }
1554
guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS * ip_addr)1555 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1556 {
1557 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1558 * field to obtain the prefix.
1559 */
1560 return ip_addr->OnLinkPrefixLength;
1561 }
1562
1563 #define INTERFACE_PATH_BUF_SZ 512
1564
get_interface_index(const char * guid)1565 static DWORD get_interface_index(const char *guid)
1566 {
1567 ULONG index;
1568 DWORD status;
1569 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1570 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1571 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1572 status = GetAdapterIndex (wbuf, &index);
1573 if (status != NO_ERROR) {
1574 return (DWORD)~0;
1575 } else {
1576 return index;
1577 }
1578 }
1579
1580 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1581
guest_get_network_stats(const char * name,GuestNetworkInterfaceStat * stats)1582 static int guest_get_network_stats(const char *name,
1583 GuestNetworkInterfaceStat *stats)
1584 {
1585 OSVERSIONINFO os_ver;
1586
1587 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1588 GetVersionEx(&os_ver);
1589 if (os_ver.dwMajorVersion >= 6) {
1590 MIB_IF_ROW2 a_mid_ifrow;
1591 GetIfEntry2Func getifentry2_ex;
1592 DWORD if_index = 0;
1593 HMODULE module = GetModuleHandle("iphlpapi");
1594 PVOID func = GetProcAddress(module, "GetIfEntry2");
1595
1596 if (func == NULL) {
1597 return -1;
1598 }
1599
1600 getifentry2_ex = (GetIfEntry2Func)func;
1601 if_index = get_interface_index(name);
1602 if (if_index == (DWORD)~0) {
1603 return -1;
1604 }
1605
1606 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1607 a_mid_ifrow.InterfaceIndex = if_index;
1608 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1609 stats->rx_bytes = a_mid_ifrow.InOctets;
1610 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1611 stats->rx_errs = a_mid_ifrow.InErrors;
1612 stats->rx_dropped = a_mid_ifrow.InDiscards;
1613 stats->tx_bytes = a_mid_ifrow.OutOctets;
1614 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1615 stats->tx_errs = a_mid_ifrow.OutErrors;
1616 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1617 return 0;
1618 }
1619 }
1620 return -1;
1621 }
1622
qmp_guest_network_get_interfaces(Error ** errp)1623 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1624 {
1625 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1626 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1627 GuestNetworkInterfaceList *head = NULL, **tail = &head;
1628 GuestIpAddressList *head_addr, **tail_addr;
1629 GuestNetworkInterface *info;
1630 GuestNetworkInterfaceStat *interface_stat = NULL;
1631 GuestIpAddress *address_item = NULL;
1632 unsigned char *mac_addr;
1633 char *addr_str;
1634 WORD wsa_version;
1635 WSADATA wsa_data;
1636 int ret;
1637
1638 adptr_addrs = guest_get_adapters_addresses(errp);
1639 if (adptr_addrs == NULL) {
1640 return NULL;
1641 }
1642
1643 /* Make WSA APIs available. */
1644 wsa_version = MAKEWORD(2, 2);
1645 ret = WSAStartup(wsa_version, &wsa_data);
1646 if (ret != 0) {
1647 error_setg_win32(errp, ret, "failed socket startup");
1648 goto out;
1649 }
1650
1651 for (addr = adptr_addrs; addr; addr = addr->Next) {
1652 info = g_malloc0(sizeof(*info));
1653
1654 QAPI_LIST_APPEND(tail, info);
1655
1656 info->name = guest_wctomb_dup(addr->FriendlyName);
1657
1658 if (addr->PhysicalAddressLength != 0) {
1659 mac_addr = addr->PhysicalAddress;
1660
1661 info->hardware_address =
1662 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1663 (int) mac_addr[0], (int) mac_addr[1],
1664 (int) mac_addr[2], (int) mac_addr[3],
1665 (int) mac_addr[4], (int) mac_addr[5]);
1666 }
1667
1668 head_addr = NULL;
1669 tail_addr = &head_addr;
1670 for (ip_addr = addr->FirstUnicastAddress;
1671 ip_addr;
1672 ip_addr = ip_addr->Next) {
1673 addr_str = guest_addr_to_str(ip_addr, errp);
1674 if (addr_str == NULL) {
1675 continue;
1676 }
1677
1678 address_item = g_malloc0(sizeof(*address_item));
1679
1680 QAPI_LIST_APPEND(tail_addr, address_item);
1681
1682 address_item->ip_address = addr_str;
1683 address_item->prefix = guest_ip_prefix(ip_addr);
1684 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1685 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1686 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1687 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1688 }
1689 }
1690 if (head_addr) {
1691 info->has_ip_addresses = true;
1692 info->ip_addresses = head_addr;
1693 }
1694 if (!info->statistics) {
1695 interface_stat = g_malloc0(sizeof(*interface_stat));
1696 if (guest_get_network_stats(addr->AdapterName, interface_stat)
1697 == -1) {
1698 g_free(interface_stat);
1699 } else {
1700 info->statistics = interface_stat;
1701 }
1702 }
1703 }
1704 WSACleanup();
1705 out:
1706 g_free(adptr_addrs);
1707 return head;
1708 }
1709
filetime_to_ns(const FILETIME * tf)1710 static int64_t filetime_to_ns(const FILETIME *tf)
1711 {
1712 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime)
1713 - W32_FT_OFFSET) * 100;
1714 }
1715
qmp_guest_set_time(bool has_time,int64_t time_ns,Error ** errp)1716 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1717 {
1718 Error *local_err = NULL;
1719 SYSTEMTIME ts;
1720 FILETIME tf;
1721 LONGLONG time;
1722
1723 if (!has_time) {
1724 /* Unfortunately, Windows libraries don't provide an easy way to access
1725 * RTC yet:
1726 *
1727 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1728 *
1729 * Instead, a workaround is to use the Windows win32tm command to
1730 * resync the time using the Windows Time service.
1731 */
1732 LPVOID msg_buffer;
1733 DWORD ret_flags;
1734
1735 HRESULT hr = system("w32tm /resync /nowait");
1736
1737 if (GetLastError() != 0) {
1738 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1739 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1740 } else if (hr != 0) {
1741 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1742 error_setg(errp, "Windows Time service not running on the "
1743 "guest");
1744 } else {
1745 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1746 FORMAT_MESSAGE_FROM_SYSTEM |
1747 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1748 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1749 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1750 NULL)) {
1751 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1752 "t retrieve error message", hr);
1753 } else {
1754 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1755 (LPCTSTR)msg_buffer);
1756 LocalFree(msg_buffer);
1757 }
1758 }
1759 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1760 error_setg(errp, "No internet connection on guest, sync not "
1761 "accurate");
1762 }
1763 return;
1764 }
1765
1766 /* Validate time passed by user. */
1767 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1768 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1769 return;
1770 }
1771
1772 time = time_ns / 100 + W32_FT_OFFSET;
1773
1774 tf.dwLowDateTime = (DWORD) time;
1775 tf.dwHighDateTime = (DWORD) (time >> 32);
1776
1777 if (!FileTimeToSystemTime(&tf, &ts)) {
1778 error_setg(errp, "Failed to convert system time %d",
1779 (int)GetLastError());
1780 return;
1781 }
1782
1783 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1784 if (local_err) {
1785 error_propagate(errp, local_err);
1786 return;
1787 }
1788
1789 if (!SetSystemTime(&ts)) {
1790 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1791 return;
1792 }
1793 }
1794
qmp_guest_get_vcpus(Error ** errp)1795 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1796 {
1797 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1798 DWORD length;
1799 GuestLogicalProcessorList *head, **tail;
1800 Error *local_err = NULL;
1801 int64_t current;
1802
1803 ptr = pslpi = NULL;
1804 length = 0;
1805 current = 0;
1806 head = NULL;
1807 tail = &head;
1808
1809 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1810 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1811 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1812 ptr = pslpi = g_malloc0(length);
1813 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1814 error_setg(&local_err, "Failed to get processor information: %d",
1815 (int)GetLastError());
1816 }
1817 } else {
1818 error_setg(&local_err,
1819 "Failed to get processor information buffer length: %d",
1820 (int)GetLastError());
1821 }
1822
1823 while ((local_err == NULL) && (length > 0)) {
1824 if (pslpi->Relationship == RelationProcessorCore) {
1825 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1826
1827 while (cpu_bits > 0) {
1828 if (!!(cpu_bits & 1)) {
1829 GuestLogicalProcessor *vcpu;
1830
1831 vcpu = g_malloc0(sizeof *vcpu);
1832 vcpu->logical_id = current++;
1833 vcpu->online = true;
1834 vcpu->has_can_offline = true;
1835
1836 QAPI_LIST_APPEND(tail, vcpu);
1837 }
1838 cpu_bits >>= 1;
1839 }
1840 }
1841 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1842 pslpi++; /* next entry */
1843 }
1844
1845 g_free(ptr);
1846
1847 if (local_err == NULL) {
1848 if (head != NULL) {
1849 return head;
1850 }
1851 /* there's no guest with zero VCPUs */
1852 error_setg(&local_err, "Guest reported zero VCPUs");
1853 }
1854
1855 qapi_free_GuestLogicalProcessorList(head);
1856 error_propagate(errp, local_err);
1857 return NULL;
1858 }
1859
1860 static gchar *
get_net_error_message(gint error)1861 get_net_error_message(gint error)
1862 {
1863 HMODULE module = NULL;
1864 gchar *retval = NULL;
1865 wchar_t *msg = NULL;
1866 int flags;
1867 size_t nchars;
1868
1869 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1870 FORMAT_MESSAGE_IGNORE_INSERTS |
1871 FORMAT_MESSAGE_FROM_SYSTEM;
1872
1873 if (error >= NERR_BASE && error <= MAX_NERR) {
1874 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1875
1876 if (module != NULL) {
1877 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1878 }
1879 }
1880
1881 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1882
1883 if (msg != NULL) {
1884 nchars = wcslen(msg);
1885
1886 if (nchars >= 2 &&
1887 msg[nchars - 1] == L'\n' &&
1888 msg[nchars - 2] == L'\r') {
1889 msg[nchars - 2] = L'\0';
1890 }
1891
1892 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1893
1894 LocalFree(msg);
1895 }
1896
1897 if (module != NULL) {
1898 FreeLibrary(module);
1899 }
1900
1901 return retval;
1902 }
1903
qmp_guest_set_user_password(const char * username,const char * password,bool crypted,Error ** errp)1904 void qmp_guest_set_user_password(const char *username,
1905 const char *password,
1906 bool crypted,
1907 Error **errp)
1908 {
1909 NET_API_STATUS nas;
1910 char *rawpasswddata = NULL;
1911 size_t rawpasswdlen;
1912 wchar_t *user = NULL, *wpass = NULL;
1913 USER_INFO_1003 pi1003 = { 0, };
1914 GError *gerr = NULL;
1915
1916 if (crypted) {
1917 error_setg(errp, "'crypted' must be off on this host");
1918 return;
1919 }
1920
1921 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1922 if (!rawpasswddata) {
1923 return;
1924 }
1925 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1926 rawpasswddata[rawpasswdlen] = '\0';
1927
1928 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1929 if (!user) {
1930 error_setg(errp, "can't convert 'username' to UTF-16: %s",
1931 gerr->message);
1932 g_error_free(gerr);
1933 goto done;
1934 }
1935
1936 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1937 if (!wpass) {
1938 error_setg(errp, "can't convert 'password' to UTF-16: %s",
1939 gerr->message);
1940 g_error_free(gerr);
1941 goto done;
1942 }
1943
1944 pi1003.usri1003_password = wpass;
1945 nas = NetUserSetInfo(NULL, user,
1946 1003, (LPBYTE)&pi1003,
1947 NULL);
1948
1949 if (nas != NERR_Success) {
1950 gchar *msg = get_net_error_message(nas);
1951 error_setg(errp, "failed to set password: %s", msg);
1952 g_free(msg);
1953 }
1954
1955 done:
1956 g_free(user);
1957 g_free(wpass);
1958 g_free(rawpasswddata);
1959 }
1960
1961 /* register init/cleanup routines for stateful command groups */
ga_command_state_init(GAState * s,GACommandState * cs)1962 void ga_command_state_init(GAState *s, GACommandState *cs)
1963 {
1964 if (!vss_initialized()) {
1965 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1966 }
1967 }
1968
1969 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
1970 typedef struct _GA_WTSINFOA {
1971 WTS_CONNECTSTATE_CLASS State;
1972 DWORD SessionId;
1973 DWORD IncomingBytes;
1974 DWORD OutgoingBytes;
1975 DWORD IncomingFrames;
1976 DWORD OutgoingFrames;
1977 DWORD IncomingCompressedBytes;
1978 DWORD OutgoingCompressedBy;
1979 CHAR WinStationName[WINSTATIONNAME_LENGTH];
1980 CHAR Domain[DOMAIN_LENGTH];
1981 CHAR UserName[USERNAME_LENGTH + 1];
1982 LARGE_INTEGER ConnectTime;
1983 LARGE_INTEGER DisconnectTime;
1984 LARGE_INTEGER LastInputTime;
1985 LARGE_INTEGER LogonTime;
1986 LARGE_INTEGER CurrentTime;
1987
1988 } GA_WTSINFOA;
1989
qmp_guest_get_users(Error ** errp)1990 GuestUserList *qmp_guest_get_users(Error **errp)
1991 {
1992 #define QGA_NANOSECONDS 10000000
1993
1994 GHashTable *cache = NULL;
1995 GuestUserList *head = NULL, **tail = &head;
1996
1997 DWORD buffer_size = 0, count = 0, i = 0;
1998 GA_WTSINFOA *info = NULL;
1999 WTS_SESSION_INFOA *entries = NULL;
2000 GuestUser *user = NULL;
2001 gpointer value = NULL;
2002 INT64 login = 0;
2003 double login_time = 0;
2004
2005 cache = g_hash_table_new(g_str_hash, g_str_equal);
2006
2007 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2008 for (i = 0; i < count; ++i) {
2009 buffer_size = 0;
2010 info = NULL;
2011 if (WTSQuerySessionInformationA(
2012 NULL,
2013 entries[i].SessionId,
2014 WTSSessionInfo,
2015 (LPSTR *)&info,
2016 &buffer_size
2017 )) {
2018
2019 if (strlen(info->UserName) == 0) {
2020 WTSFreeMemory(info);
2021 continue;
2022 }
2023
2024 login = info->LogonTime.QuadPart;
2025 login -= W32_FT_OFFSET;
2026 login_time = ((double)login) / QGA_NANOSECONDS;
2027
2028 if (g_hash_table_contains(cache, info->UserName)) {
2029 value = g_hash_table_lookup(cache, info->UserName);
2030 user = (GuestUser *)value;
2031 if (user->login_time > login_time) {
2032 user->login_time = login_time;
2033 }
2034 } else {
2035 user = g_new0(GuestUser, 1);
2036
2037 user->user = g_strdup(info->UserName);
2038 user->domain = g_strdup(info->Domain);
2039
2040 user->login_time = login_time;
2041
2042 g_hash_table_add(cache, user->user);
2043
2044 QAPI_LIST_APPEND(tail, user);
2045 }
2046 }
2047 WTSFreeMemory(info);
2048 }
2049 WTSFreeMemory(entries);
2050 }
2051 g_hash_table_destroy(cache);
2052 return head;
2053 }
2054
2055 typedef struct _ga_matrix_lookup_t {
2056 int major;
2057 int minor;
2058 const char *version;
2059 const char *version_id;
2060 } ga_matrix_lookup_t;
2061
2062 static const ga_matrix_lookup_t WIN_CLIENT_VERSION_MATRIX[] = {
2063 { 5, 0, "Microsoft Windows 2000", "2000"},
2064 { 5, 1, "Microsoft Windows XP", "xp"},
2065 { 6, 0, "Microsoft Windows Vista", "vista"},
2066 { 6, 1, "Microsoft Windows 7" "7"},
2067 { 6, 2, "Microsoft Windows 8", "8"},
2068 { 6, 3, "Microsoft Windows 8.1", "8.1"},
2069 { }
2070 };
2071
2072 static const ga_matrix_lookup_t WIN_SERVER_VERSION_MATRIX[] = {
2073 { 5, 2, "Microsoft Windows Server 2003", "2003"},
2074 { 6, 0, "Microsoft Windows Server 2008", "2008"},
2075 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2076 { 6, 2, "Microsoft Windows Server 2012", "2012"},
2077 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2078 { },
2079 };
2080
2081 typedef struct _ga_win_10_0_t {
2082 int first_build;
2083 const char *version;
2084 const char *version_id;
2085 } ga_win_10_0_t;
2086
2087 static const ga_win_10_0_t WIN_10_0_SERVER_VERSION_MATRIX[] = {
2088 {14393, "Microsoft Windows Server 2016", "2016"},
2089 {17763, "Microsoft Windows Server 2019", "2019"},
2090 {20344, "Microsoft Windows Server 2022", "2022"},
2091 {26040, "MIcrosoft Windows Server 2025", "2025"},
2092 { }
2093 };
2094
2095 static const ga_win_10_0_t WIN_10_0_CLIENT_VERSION_MATRIX[] = {
2096 {10240, "Microsoft Windows 10", "10"},
2097 {22000, "Microsoft Windows 11", "11"},
2098 { }
2099 };
2100
ga_get_win_version(RTL_OSVERSIONINFOEXW * info,Error ** errp)2101 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2102 {
2103 typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2104 RTL_OSVERSIONINFOEXW *os_version_info_ex);
2105
2106 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2107
2108 HMODULE module = GetModuleHandle("ntdll");
2109 PVOID fun = GetProcAddress(module, "RtlGetVersion");
2110 if (fun == NULL) {
2111 error_setg(errp, "Failed to get address of RtlGetVersion");
2112 return;
2113 }
2114
2115 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2116 rtl_get_version(info);
2117 return;
2118 }
2119
ga_get_win_name(const OSVERSIONINFOEXW * os_version,bool id)2120 static char *ga_get_win_name(const OSVERSIONINFOEXW *os_version, bool id)
2121 {
2122 DWORD major = os_version->dwMajorVersion;
2123 DWORD minor = os_version->dwMinorVersion;
2124 DWORD build = os_version->dwBuildNumber;
2125 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2126 const ga_matrix_lookup_t *table = tbl_idx ?
2127 WIN_SERVER_VERSION_MATRIX : WIN_CLIENT_VERSION_MATRIX;
2128 const ga_win_10_0_t *win_10_0_table = tbl_idx ?
2129 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX;
2130 const ga_win_10_0_t *win_10_0_version = NULL;
2131 while (table->version != NULL) {
2132 if (major == 10 && minor == 0) {
2133 while (win_10_0_table->version != NULL) {
2134 if (build >= win_10_0_table->first_build) {
2135 win_10_0_version = win_10_0_table;
2136 }
2137 win_10_0_table++;
2138 }
2139 if (win_10_0_table) {
2140 if (id) {
2141 return g_strdup(win_10_0_version->version_id);
2142 } else {
2143 return g_strdup(win_10_0_version->version);
2144 }
2145 }
2146 } else if (major == table->major && minor == table->minor) {
2147 if (id) {
2148 return g_strdup(table->version_id);
2149 } else {
2150 return g_strdup(table->version);
2151 }
2152 }
2153 ++table;
2154 }
2155 slog("failed to lookup Windows version: major=%lu, minor=%lu",
2156 major, minor);
2157 return g_strdup("N/A");
2158 }
2159
ga_get_win_product_name(Error ** errp)2160 static char *ga_get_win_product_name(Error **errp)
2161 {
2162 HKEY key = INVALID_HANDLE_VALUE;
2163 DWORD size = 128;
2164 char *result = g_malloc0(size);
2165 LONG err = ERROR_SUCCESS;
2166
2167 err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2168 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2169 &key);
2170 if (err != ERROR_SUCCESS) {
2171 error_setg_win32(errp, err, "failed to open registry key");
2172 g_free(result);
2173 return NULL;
2174 }
2175
2176 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2177 (LPBYTE)result, &size);
2178 if (err == ERROR_MORE_DATA) {
2179 slog("ProductName longer than expected (%lu bytes), retrying",
2180 size);
2181 g_free(result);
2182 result = NULL;
2183 if (size > 0) {
2184 result = g_malloc0(size);
2185 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2186 (LPBYTE)result, &size);
2187 }
2188 }
2189 if (err != ERROR_SUCCESS) {
2190 error_setg_win32(errp, err, "failed to retrieve ProductName");
2191 goto fail;
2192 }
2193
2194 RegCloseKey(key);
2195 return result;
2196
2197 fail:
2198 if (key != INVALID_HANDLE_VALUE) {
2199 RegCloseKey(key);
2200 }
2201 g_free(result);
2202 return NULL;
2203 }
2204
ga_get_current_arch(void)2205 static char *ga_get_current_arch(void)
2206 {
2207 SYSTEM_INFO info;
2208 GetNativeSystemInfo(&info);
2209 char *result = NULL;
2210 switch (info.wProcessorArchitecture) {
2211 case PROCESSOR_ARCHITECTURE_AMD64:
2212 result = g_strdup("x86_64");
2213 break;
2214 case PROCESSOR_ARCHITECTURE_ARM:
2215 result = g_strdup("arm");
2216 break;
2217 case PROCESSOR_ARCHITECTURE_IA64:
2218 result = g_strdup("ia64");
2219 break;
2220 case PROCESSOR_ARCHITECTURE_INTEL:
2221 result = g_strdup("x86");
2222 break;
2223 case PROCESSOR_ARCHITECTURE_UNKNOWN:
2224 default:
2225 slog("unknown processor architecture 0x%0x",
2226 info.wProcessorArchitecture);
2227 result = g_strdup("unknown");
2228 break;
2229 }
2230 return result;
2231 }
2232
qmp_guest_get_osinfo(Error ** errp)2233 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
2234 {
2235 Error *local_err = NULL;
2236 OSVERSIONINFOEXW os_version = {0};
2237 bool server;
2238 char *product_name;
2239 GuestOSInfo *info;
2240
2241 ga_get_win_version(&os_version, &local_err);
2242 if (local_err) {
2243 error_propagate(errp, local_err);
2244 return NULL;
2245 }
2246
2247 server = os_version.wProductType != VER_NT_WORKSTATION;
2248 product_name = ga_get_win_product_name(errp);
2249 if (product_name == NULL) {
2250 return NULL;
2251 }
2252
2253 info = g_new0(GuestOSInfo, 1);
2254
2255 info->kernel_version = g_strdup_printf("%lu.%lu",
2256 os_version.dwMajorVersion,
2257 os_version.dwMinorVersion);
2258 info->kernel_release = g_strdup_printf("%lu",
2259 os_version.dwBuildNumber);
2260 info->machine = ga_get_current_arch();
2261
2262 info->id = g_strdup("mswindows");
2263 info->name = g_strdup("Microsoft Windows");
2264 info->pretty_name = product_name;
2265 info->version = ga_get_win_name(&os_version, false);
2266 info->version_id = ga_get_win_name(&os_version, true);
2267 info->variant = g_strdup(server ? "server" : "client");
2268 info->variant_id = g_strdup(server ? "server" : "client");
2269
2270 return info;
2271 }
2272
2273 /*
2274 * Safely get device property. Returned strings are using wide characters.
2275 * Caller is responsible for freeing the buffer.
2276 */
cm_get_property(DEVINST devInst,const DEVPROPKEY * propName,PDEVPROPTYPE propType)2277 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2278 PDEVPROPTYPE propType)
2279 {
2280 CONFIGRET cr;
2281 g_autofree LPBYTE buffer = NULL;
2282 ULONG buffer_len = 0;
2283
2284 /* First query for needed space */
2285 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2286 buffer, &buffer_len, 0);
2287 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2288
2289 slog("failed to get property size, error=0x%lx", cr);
2290 return NULL;
2291 }
2292 buffer = g_new0(BYTE, buffer_len + 1);
2293 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2294 buffer, &buffer_len, 0);
2295 if (cr != CR_SUCCESS) {
2296 slog("failed to get device property, error=0x%lx", cr);
2297 return NULL;
2298 }
2299 return g_steal_pointer(&buffer);
2300 }
2301
ga_get_hardware_ids(DEVINST devInstance)2302 static GStrv ga_get_hardware_ids(DEVINST devInstance)
2303 {
2304 GArray *values = NULL;
2305 DEVPROPTYPE cm_type;
2306 LPWSTR id;
2307 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2308 &qga_DEVPKEY_Device_HardwareIds, &cm_type);
2309 if (property == NULL) {
2310 slog("failed to get hardware IDs");
2311 return NULL;
2312 }
2313 if (*property == '\0') {
2314 /* empty list */
2315 return NULL;
2316 }
2317 values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2318 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2319 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2320 g_array_append_val(values, id8);
2321 }
2322 return (GStrv)g_array_free(values, FALSE);
2323 }
2324
2325 /*
2326 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2327 */
2328 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
2329
qmp_guest_get_devices(Error ** errp)2330 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
2331 {
2332 GuestDeviceInfoList *head = NULL, **tail = &head;
2333 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2334 SP_DEVINFO_DATA dev_info_data;
2335 int i, j;
2336 GError *gerr = NULL;
2337 g_autoptr(GRegex) device_pci_re = NULL;
2338 DEVPROPTYPE cm_type;
2339
2340 device_pci_re = g_regex_new(DEVICE_PCI_RE,
2341 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
2342 &gerr);
2343 g_assert(device_pci_re != NULL);
2344
2345 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2346 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
2347 if (dev_info == INVALID_HANDLE_VALUE) {
2348 error_setg(errp, "failed to get device tree");
2349 return NULL;
2350 }
2351
2352 slog("enumerating devices");
2353 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2354 bool skip = true;
2355 g_autofree LPWSTR name = NULL;
2356 g_autofree LPFILETIME date = NULL;
2357 g_autofree LPWSTR version = NULL;
2358 g_auto(GStrv) hw_ids = NULL;
2359 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2360 g_autofree char *vendor_id = NULL;
2361 g_autofree char *device_id = NULL;
2362
2363 name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2364 &qga_DEVPKEY_NAME, &cm_type);
2365 if (name == NULL) {
2366 slog("failed to get device description");
2367 continue;
2368 }
2369 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2370 if (device->driver_name == NULL) {
2371 error_setg(errp, "conversion to utf8 failed (driver name)");
2372 return NULL;
2373 }
2374 slog("querying device: %s", device->driver_name);
2375 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2376 if (hw_ids == NULL) {
2377 continue;
2378 }
2379 for (j = 0; hw_ids[j] != NULL; j++) {
2380 g_autoptr(GMatchInfo) match_info;
2381 GuestDeviceIdPCI *id;
2382 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2383 continue;
2384 }
2385 skip = false;
2386
2387 vendor_id = g_match_info_fetch(match_info, 1);
2388 device_id = g_match_info_fetch(match_info, 2);
2389
2390 device->id = g_new0(GuestDeviceId, 1);
2391 device->id->type = GUEST_DEVICE_TYPE_PCI;
2392 id = &device->id->u.pci;
2393 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2394 id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2395
2396 break;
2397 }
2398 if (skip) {
2399 continue;
2400 }
2401
2402 version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2403 &qga_DEVPKEY_Device_DriverVersion, &cm_type);
2404 if (version == NULL) {
2405 slog("failed to get driver version");
2406 continue;
2407 }
2408 device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2409 NULL, NULL);
2410 if (device->driver_version == NULL) {
2411 error_setg(errp, "conversion to utf8 failed (driver version)");
2412 return NULL;
2413 }
2414
2415 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2416 &qga_DEVPKEY_Device_DriverDate, &cm_type);
2417 if (date == NULL) {
2418 slog("failed to get driver date");
2419 continue;
2420 }
2421 device->driver_date = filetime_to_ns(date);
2422 device->has_driver_date = true;
2423
2424 slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2425 device->driver_name, device->driver_date,
2426 device->driver_version);
2427 QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2428 }
2429
2430 if (dev_info != INVALID_HANDLE_VALUE) {
2431 SetupDiDestroyDeviceInfoList(dev_info);
2432 }
2433 return head;
2434 }
2435
qga_get_host_name(Error ** errp)2436 char *qga_get_host_name(Error **errp)
2437 {
2438 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
2439 DWORD size = G_N_ELEMENTS(tmp);
2440
2441 if (GetComputerNameW(tmp, &size) == 0) {
2442 error_setg_win32(errp, GetLastError(), "failed close handle");
2443 return NULL;
2444 }
2445
2446 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL);
2447 }
2448