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migration/multifd: correct multifd_send_thread to trace the flags
[qemu/armbru.git] / qga / commands-win32.c
blobb5fee6a2cd6caec190c97920c700fee58a936857
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
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
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
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
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
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 goto done;
221 }
222
223 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
224 guest_flags->creation_disposition, flags_and_attr,
225 templ_file);
226 if (fh == INVALID_HANDLE_VALUE) {
227 error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
228 path);
229 goto done;
230 }
231
232 /* set fd non-blocking to avoid common use cases (like reading from a
233 * named pipe) from hanging the agent
234 */
235 handle_set_nonblocking(fh);
236
237 fd = guest_file_handle_add(fh, errp);
238 if (fd < 0) {
239 CloseHandle(fh);
240 error_setg(errp, "failed to add handle to qmp handle table");
241 goto done;
242 }
243
244 slog("guest-file-open, handle: % " PRId64, fd);
245
246 done:
247 if (gerr) {
248 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
249 g_error_free(gerr);
250 }
251 g_free(w_path);
252 return fd;
253 }
254
255 void qmp_guest_file_close(int64_t handle, Error **errp)
256 {
257 bool ret;
258 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
259 slog("guest-file-close called, handle: %" PRId64, handle);
260 if (gfh == NULL) {
261 return;
262 }
263 ret = CloseHandle(gfh->fh);
264 if (!ret) {
265 error_setg_win32(errp, GetLastError(), "failed close handle");
266 return;
267 }
268
269 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
270 g_free(gfh);
271 }
272
273 static void acquire_privilege(const char *name, Error **errp)
274 {
275 HANDLE token = NULL;
276 TOKEN_PRIVILEGES priv;
277
278 if (OpenProcessToken(GetCurrentProcess(),
279 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token))
280 {
281 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
282 error_setg(errp, QERR_QGA_COMMAND_FAILED,
283 "no luid for requested privilege");
284 goto out;
285 }
286
287 priv.PrivilegeCount = 1;
288 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
289
290 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
291 error_setg(errp, QERR_QGA_COMMAND_FAILED,
292 "unable to acquire requested privilege");
293 goto out;
294 }
295
296 } else {
297 error_setg(errp, QERR_QGA_COMMAND_FAILED,
298 "failed to open privilege token");
299 }
300
301 out:
302 if (token) {
303 CloseHandle(token);
304 }
305 }
306
307 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
308 Error **errp)
309 {
310 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
311 if (!thread) {
312 error_setg(errp, QERR_QGA_COMMAND_FAILED,
313 "failed to dispatch asynchronous command");
314 }
315 }
316
317 void qmp_guest_shutdown(const char *mode, Error **errp)
318 {
319 Error *local_err = NULL;
320 UINT shutdown_flag = EWX_FORCE;
321
322 slog("guest-shutdown called, mode: %s", mode);
323
324 if (!mode || strcmp(mode, "powerdown") == 0) {
325 shutdown_flag |= EWX_POWEROFF;
326 } else if (strcmp(mode, "halt") == 0) {
327 shutdown_flag |= EWX_SHUTDOWN;
328 } else if (strcmp(mode, "reboot") == 0) {
329 shutdown_flag |= EWX_REBOOT;
330 } else {
331 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
332 "'halt', 'powerdown', or 'reboot'");
333 return;
334 }
335
336 /* Request a shutdown privilege, but try to shut down the system
337 anyway. */
338 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
339 if (local_err) {
340 error_propagate(errp, local_err);
341 return;
342 }
343
344 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
345 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
346 slog("guest-shutdown failed: %s", emsg);
347 error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
348 }
349 }
350
351 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
352 int64_t count, Error **errp)
353 {
354 GuestFileRead *read_data = NULL;
355 guchar *buf;
356 HANDLE fh = gfh->fh;
357 bool is_ok;
358 DWORD read_count;
359
360 buf = g_malloc0(count + 1);
361 is_ok = ReadFile(fh, buf, count, &read_count, NULL);
362 if (!is_ok) {
363 error_setg_win32(errp, GetLastError(), "failed to read file");
364 } else {
365 buf[read_count] = 0;
366 read_data = g_new0(GuestFileRead, 1);
367 read_data->count = (size_t)read_count;
368 read_data->eof = read_count == 0;
369
370 if (read_count != 0) {
371 read_data->buf_b64 = g_base64_encode(buf, read_count);
372 }
373 }
374 g_free(buf);
375
376 return read_data;
377 }
378
379 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
380 bool has_count, int64_t count,
381 Error **errp)
382 {
383 GuestFileWrite *write_data = NULL;
384 guchar *buf;
385 gsize buf_len;
386 bool is_ok;
387 DWORD write_count;
388 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
389 HANDLE fh;
390
391 if (!gfh) {
392 return NULL;
393 }
394 fh = gfh->fh;
395 buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
396 if (!buf) {
397 return NULL;
398 }
399
400 if (!has_count) {
401 count = buf_len;
402 } else if (count < 0 || count > buf_len) {
403 error_setg(errp, "value '%" PRId64
404 "' is invalid for argument count", count);
405 goto done;
406 }
407
408 is_ok = WriteFile(fh, buf, count, &write_count, NULL);
409 if (!is_ok) {
410 error_setg_win32(errp, GetLastError(), "failed to write to file");
411 slog("guest-file-write-failed, handle: %" PRId64, handle);
412 } else {
413 write_data = g_new0(GuestFileWrite, 1);
414 write_data->count = (size_t) write_count;
415 }
416
417 done:
418 g_free(buf);
419 return write_data;
420 }
421
422 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
423 GuestFileWhence *whence_code,
424 Error **errp)
425 {
426 GuestFileHandle *gfh;
427 GuestFileSeek *seek_data;
428 HANDLE fh;
429 LARGE_INTEGER new_pos, off_pos;
430 off_pos.QuadPart = offset;
431 BOOL res;
432 int whence;
433 Error *err = NULL;
434
435 gfh = guest_file_handle_find(handle, errp);
436 if (!gfh) {
437 return NULL;
438 }
439
440 /* We stupidly exposed 'whence':'int' in our qapi */
441 whence = ga_parse_whence(whence_code, &err);
442 if (err) {
443 error_propagate(errp, err);
444 return NULL;
445 }
446
447 fh = gfh->fh;
448 res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
449 if (!res) {
450 error_setg_win32(errp, GetLastError(), "failed to seek file");
451 return NULL;
452 }
453 seek_data = g_new0(GuestFileSeek, 1);
454 seek_data->position = new_pos.QuadPart;
455 return seek_data;
456 }
457
458 void qmp_guest_file_flush(int64_t handle, Error **errp)
459 {
460 HANDLE fh;
461 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
462 if (!gfh) {
463 return;
464 }
465
466 fh = gfh->fh;
467 if (!FlushFileBuffers(fh)) {
468 error_setg_win32(errp, GetLastError(), "failed to flush file");
469 }
470 }
471
472 static GuestDiskBusType win2qemu[] = {
473 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
474 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
475 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
476 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
477 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
478 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
479 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
480 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
481 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
482 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
483 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
484 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
485 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
486 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
487 #if (_WIN32_WINNT >= 0x0601)
488 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
489 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
490 /*
491 * BusTypeSpaces currently is not suported
492 */
493 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN,
494 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME,
495 #endif
496 };
497
498 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
499 {
500 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
501 return GUEST_DISK_BUS_TYPE_UNKNOWN;
502 }
503 return win2qemu[(int)bus];
504 }
505
506 DEFINE_GUID(GUID_DEVINTERFACE_DISK,
507 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2,
508 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
509 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT,
510 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82,
511 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
512
513 static void get_pci_address_for_device(GuestPCIAddress *pci,
514 HDEVINFO dev_info)
515 {
516 SP_DEVINFO_DATA dev_info_data;
517 DWORD j;
518 DWORD size;
519 bool partial_pci = false;
520
521 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
522
523 for (j = 0;
524 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data);
525 j++) {
526 DWORD addr, bus, ui_slot, type;
527 int func, slot;
528 size = sizeof(DWORD);
529
530 /*
531 * There is no need to allocate buffer in the next functions. The
532 * size is known and ULONG according to
533 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
534 */
535 if (!SetupDiGetDeviceRegistryProperty(
536 dev_info, &dev_info_data, SPDRP_BUSNUMBER,
537 &type, (PBYTE)&bus, size, NULL)) {
538 debug_error("failed to get PCI bus");
539 bus = -1;
540 partial_pci = true;
541 }
542
543 /*
544 * The function retrieves the device's address. This value will be
545 * transformed into device function and number
546 */
547 if (!SetupDiGetDeviceRegistryProperty(
548 dev_info, &dev_info_data, SPDRP_ADDRESS,
549 &type, (PBYTE)&addr, size, NULL)) {
550 debug_error("failed to get PCI address");
551 addr = -1;
552 partial_pci = true;
553 }
554
555 /*
556 * This call returns UINumber of DEVICE_CAPABILITIES structure.
557 * This number is typically a user-perceived slot number.
558 */
559 if (!SetupDiGetDeviceRegistryProperty(
560 dev_info, &dev_info_data, SPDRP_UI_NUMBER,
561 &type, (PBYTE)&ui_slot, size, NULL)) {
562 debug_error("failed to get PCI slot");
563 ui_slot = -1;
564 partial_pci = true;
565 }
566
567 /*
568 * SetupApi gives us the same information as driver with
569 * IoGetDeviceProperty. According to Microsoft:
570 *
571 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
572 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
573 * SPDRP_ADDRESS is propertyAddress, so we do the same.
574 *
575 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
576 */
577 if (partial_pci) {
578 pci->domain = -1;
579 pci->slot = -1;
580 pci->function = -1;
581 pci->bus = -1;
582 continue;
583 } else {
584 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
585 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
586 if ((int)ui_slot != slot) {
587 g_debug("mismatch with reported slot values: %d vs %d",
588 (int)ui_slot, slot);
589 }
590 pci->domain = 0;
591 pci->slot = (int)ui_slot;
592 pci->function = func;
593 pci->bus = (int)bus;
594 return;
595 }
596 }
597 }
598
599 static GuestPCIAddress *get_empty_pci_address(void)
600 {
601 GuestPCIAddress *pci = NULL;
602
603 pci = g_malloc0(sizeof(*pci));
604 pci->domain = -1;
605 pci->slot = -1;
606 pci->function = -1;
607 pci->bus = -1;
608 return pci;
609 }
610
611 static GuestPCIAddress *get_pci_info(int number, Error **errp)
612 {
613 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
614 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE;
615
616 SP_DEVINFO_DATA dev_info_data;
617 SP_DEVICE_INTERFACE_DATA dev_iface_data;
618 HANDLE dev_file;
619 int i;
620 GuestPCIAddress *pci = get_empty_pci_address();
621
622 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
623 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
624 if (dev_info == INVALID_HANDLE_VALUE) {
625 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
626 goto end;
627 }
628
629 g_debug("enumerating devices");
630 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
631 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
632 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
633 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
634 STORAGE_DEVICE_NUMBER sdn;
635 g_autofree char *parent_dev_id = NULL;
636 SP_DEVINFO_DATA parent_dev_info_data;
637 DWORD size = 0;
638
639 g_debug("getting device path");
640 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
641 &GUID_DEVINTERFACE_DISK, 0,
642 &dev_iface_data)) {
643 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
644 pdev_iface_detail_data,
645 size, &size,
646 &dev_info_data)) {
647 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
648 pdev_iface_detail_data = g_malloc(size);
649 pdev_iface_detail_data->cbSize =
650 sizeof(*pdev_iface_detail_data);
651 } else {
652 error_setg_win32(errp, GetLastError(),
653 "failed to get device interfaces");
654 goto end;
655 }
656 }
657
658 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
659 pdev_iface_detail_data,
660 size, &size,
661 &dev_info_data)) {
662 // pdev_iface_detail_data already is allocated
663 error_setg_win32(errp, GetLastError(),
664 "failed to get device interfaces");
665 goto end;
666 }
667
668 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
669 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
670 NULL);
671
672 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
673 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
674 CloseHandle(dev_file);
675 error_setg_win32(errp, GetLastError(),
676 "failed to get device slot number");
677 goto end;
678 }
679
680 CloseHandle(dev_file);
681 if (sdn.DeviceNumber != number) {
682 continue;
683 }
684 } else {
685 error_setg_win32(errp, GetLastError(),
686 "failed to get device interfaces");
687 goto end;
688 }
689
690 g_debug("found device slot %d. Getting storage controller", number);
691 {
692 CONFIGRET cr;
693 DEVINST dev_inst, parent_dev_inst;
694 ULONG dev_id_size = 0;
695
696 size = 0;
697 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
698 parent_dev_id, size, &size)) {
699 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
700 parent_dev_id = g_malloc(size);
701 } else {
702 error_setg_win32(errp, GetLastError(),
703 "failed to get device instance ID");
704 goto end;
705 }
706 }
707
708 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
709 parent_dev_id, size, &size)) {
710 // parent_dev_id already is allocated
711 error_setg_win32(errp, GetLastError(),
712 "failed to get device instance ID");
713 goto end;
714 }
715
716 /*
717 * CM API used here as opposed to
718 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
719 * which exports are only available in mingw-w64 6+
720 */
721 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
722 if (cr != CR_SUCCESS) {
723 g_error("CM_Locate_DevInst failed with code %lx", cr);
724 error_setg_win32(errp, GetLastError(),
725 "failed to get device instance");
726 goto end;
727 }
728 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
729 if (cr != CR_SUCCESS) {
730 g_error("CM_Get_Parent failed with code %lx", cr);
731 error_setg_win32(errp, GetLastError(),
732 "failed to get parent device instance");
733 goto end;
734 }
735
736 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
737 if (cr != CR_SUCCESS) {
738 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
739 error_setg_win32(errp, GetLastError(),
740 "failed to get parent device ID length");
741 goto end;
742 }
743
744 ++dev_id_size;
745 if (dev_id_size > size) {
746 g_free(parent_dev_id);
747 parent_dev_id = g_malloc(dev_id_size);
748 }
749
750 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
751 0);
752 if (cr != CR_SUCCESS) {
753 g_error("CM_Get_Device_ID failed with code %lx", cr);
754 error_setg_win32(errp, GetLastError(),
755 "failed to get parent device ID");
756 goto end;
757 }
758 }
759
760 g_debug("querying storage controller %s for PCI information",
761 parent_dev_id);
762 parent_dev_info =
763 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
764 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
765
766 if (parent_dev_info == INVALID_HANDLE_VALUE) {
767 error_setg_win32(errp, GetLastError(),
768 "failed to get parent device");
769 goto end;
770 }
771
772 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
773 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
774 error_setg_win32(errp, GetLastError(),
775 "failed to get parent device data");
776 goto end;
777 }
778
779 get_pci_address_for_device(pci, parent_dev_info);
780
781 break;
782 }
783
784 end:
785 if (parent_dev_info != INVALID_HANDLE_VALUE) {
786 SetupDiDestroyDeviceInfoList(parent_dev_info);
787 }
788 if (dev_info != INVALID_HANDLE_VALUE) {
789 SetupDiDestroyDeviceInfoList(dev_info);
790 }
791 return pci;
792 }
793
794 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
795 Error **errp)
796 {
797 STORAGE_PROPERTY_QUERY query;
798 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
799 DWORD received;
800 ULONG size = sizeof(buf);
801
802 dev_desc = &buf;
803 query.PropertyId = StorageDeviceProperty;
804 query.QueryType = PropertyStandardQuery;
805
806 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
807 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
808 size, &received, NULL)) {
809 error_setg_win32(errp, GetLastError(), "failed to get bus type");
810 return;
811 }
812 disk->bus_type = find_bus_type(dev_desc->BusType);
813 g_debug("bus type %d", disk->bus_type);
814
815 /* Query once more. Now with long enough buffer. */
816 size = dev_desc->Size;
817 dev_desc = g_malloc0(size);
818 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
819 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
820 size, &received, NULL)) {
821 error_setg_win32(errp, GetLastError(), "failed to get serial number");
822 g_debug("failed to get serial number");
823 goto out_free;
824 }
825 if (dev_desc->SerialNumberOffset > 0) {
826 const char *serial;
827 size_t len;
828
829 if (dev_desc->SerialNumberOffset >= received) {
830 error_setg(errp, "failed to get serial number: offset outside the buffer");
831 g_debug("serial number offset outside the buffer");
832 goto out_free;
833 }
834 serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
835 len = received - dev_desc->SerialNumberOffset;
836 g_debug("serial number \"%s\"", serial);
837 if (*serial != 0) {
838 disk->serial = g_strndup(serial, len);
839 }
840 }
841 out_free:
842 g_free(dev_desc);
843
844 return;
845 }
846
847 static void get_single_disk_info(int disk_number,
848 GuestDiskAddress *disk, Error **errp)
849 {
850 SCSI_ADDRESS addr, *scsi_ad;
851 DWORD len;
852 HANDLE disk_h;
853 Error *local_err = NULL;
854
855 scsi_ad = &addr;
856
857 g_debug("getting disk info for: %s", disk->dev);
858 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
859 0, NULL);
860 if (disk_h == INVALID_HANDLE_VALUE) {
861 error_setg_win32(errp, GetLastError(), "failed to open disk");
862 return;
863 }
864
865 get_disk_properties(disk_h, disk, &local_err);
866 if (local_err) {
867 error_propagate(errp, local_err);
868 goto err_close;
869 }
870
871 g_debug("bus type %d", disk->bus_type);
872 /* always set pci_controller as required by schema. get_pci_info() should
873 * report -1 values for non-PCI buses rather than fail. fail the command
874 * if that doesn't hold since that suggests some other unexpected
875 * breakage
876 */
877 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) {
878 disk->pci_controller = get_empty_pci_address();
879 } else {
880 disk->pci_controller = get_pci_info(disk_number, &local_err);
881 if (local_err) {
882 error_propagate(errp, local_err);
883 goto err_close;
884 }
885 }
886 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
887 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
888 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
889 /* This bus type is not supported before Windows Server 2003 SP1 */
890 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
891 ) {
892 /* We are able to use the same ioctls for different bus types
893 * according to Microsoft docs
894 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
895 g_debug("getting SCSI info");
896 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
897 sizeof(SCSI_ADDRESS), &len, NULL)) {
898 disk->unit = addr.Lun;
899 disk->target = addr.TargetId;
900 disk->bus = addr.PathId;
901 }
902 /* We do not set error in this case, because we still have enough
903 * information about volume. */
904 }
905
906 err_close:
907 CloseHandle(disk_h);
908 return;
909 }
910
911 /* VSS provider works with volumes, thus there is no difference if
912 * the volume consist of spanned disks. Info about the first disk in the
913 * volume is returned for the spanned disk group (LVM) */
914 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
915 {
916 Error *local_err = NULL;
917 GuestDiskAddressList *list = NULL;
918 GuestDiskAddress *disk = NULL;
919 int i;
920 HANDLE vol_h;
921 DWORD size;
922 PVOLUME_DISK_EXTENTS extents = NULL;
923
924 /* strip final backslash */
925 char *name = g_strdup(guid);
926 if (g_str_has_suffix(name, "\\")) {
927 name[strlen(name) - 1] = 0;
928 }
929
930 g_debug("opening %s", name);
931 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
932 0, NULL);
933 if (vol_h == INVALID_HANDLE_VALUE) {
934 error_setg_win32(errp, GetLastError(), "failed to open volume");
935 goto out;
936 }
937
938 /* Get list of extents */
939 g_debug("getting disk extents");
940 size = sizeof(VOLUME_DISK_EXTENTS);
941 extents = g_malloc0(size);
942 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
943 0, extents, size, &size, NULL)) {
944 DWORD last_err = GetLastError();
945 if (last_err == ERROR_MORE_DATA) {
946 /* Try once more with big enough buffer */
947 g_free(extents);
948 extents = g_malloc0(size);
949 if (!DeviceIoControl(
950 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
951 0, extents, size, NULL, NULL)) {
952 error_setg_win32(errp, GetLastError(),
953 "failed to get disk extents");
954 goto out;
955 }
956 } else if (last_err == ERROR_INVALID_FUNCTION) {
957 /* Possibly CD-ROM or a shared drive. Try to pass the volume */
958 g_debug("volume not on disk");
959 disk = g_new0(GuestDiskAddress, 1);
960 disk->dev = g_strdup(name);
961 get_single_disk_info(0xffffffff, disk, &local_err);
962 if (local_err) {
963 g_debug("failed to get disk info, ignoring error: %s",
964 error_get_pretty(local_err));
965 error_free(local_err);
966 goto out;
967 }
968 QAPI_LIST_PREPEND(list, disk);
969 disk = NULL;
970 goto out;
971 } else {
972 error_setg_win32(errp, GetLastError(),
973 "failed to get disk extents");
974 goto out;
975 }
976 }
977 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
978
979 /* Go through each extent */
980 for (i = 0; i < extents->NumberOfDiskExtents; i++) {
981 disk = g_new0(GuestDiskAddress, 1);
982
983 /* Disk numbers directly correspond to numbers used in UNCs
984 *
985 * See documentation for DISK_EXTENT:
986 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
987 *
988 * See also Naming Files, Paths and Namespaces:
989 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
990 */
991 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
992 extents->Extents[i].DiskNumber);
993
994 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
995 if (local_err) {
996 error_propagate(errp, local_err);
997 goto out;
998 }
999 QAPI_LIST_PREPEND(list, disk);
1000 disk = NULL;
1001 }
1002
1003
1004 out:
1005 if (vol_h != INVALID_HANDLE_VALUE) {
1006 CloseHandle(vol_h);
1007 }
1008 qapi_free_GuestDiskAddress(disk);
1009 g_free(extents);
1010 g_free(name);
1011
1012 return list;
1013 }
1014
1015 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
1016 {
1017 GuestDiskInfoList *ret = NULL;
1018 HDEVINFO dev_info;
1019 SP_DEVICE_INTERFACE_DATA dev_iface_data;
1020 int i;
1021
1022 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
1023 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
1024 if (dev_info == INVALID_HANDLE_VALUE) {
1025 error_setg_win32(errp, GetLastError(), "failed to get device tree");
1026 return NULL;
1027 }
1028
1029 g_debug("enumerating devices");
1030 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
1031 for (i = 0;
1032 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
1033 i, &dev_iface_data);
1034 i++) {
1035 GuestDiskAddress *address = NULL;
1036 GuestDiskInfo *disk = NULL;
1037 Error *local_err = NULL;
1038 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1039 pdev_iface_detail_data = NULL;
1040 STORAGE_DEVICE_NUMBER sdn;
1041 HANDLE dev_file;
1042 DWORD size = 0;
1043 BOOL result;
1044 int attempt;
1045
1046 g_debug(" getting device path");
1047 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1048 result = SetupDiGetDeviceInterfaceDetail(dev_info,
1049 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1050 if (result) {
1051 break;
1052 }
1053 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1054 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1055 size);
1056 pdev_iface_detail_data->cbSize =
1057 sizeof(*pdev_iface_detail_data);
1058 } else {
1059 g_debug("failed to get device interface details");
1060 break;
1061 }
1062 }
1063 if (!result) {
1064 g_debug("skipping device");
1065 continue;
1066 }
1067
1068 g_debug(" device: %s", pdev_iface_detail_data->DevicePath);
1069 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1070 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1071 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1072 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1073 CloseHandle(dev_file);
1074 debug_error("failed to get storage device number");
1075 continue;
1076 }
1077 CloseHandle(dev_file);
1078
1079 disk = g_new0(GuestDiskInfo, 1);
1080 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1081 sdn.DeviceNumber);
1082
1083 g_debug(" number: %lu", sdn.DeviceNumber);
1084 address = g_new0(GuestDiskAddress, 1);
1085 address->dev = g_strdup(disk->name);
1086 get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1087 if (local_err) {
1088 g_debug("failed to get disk info: %s",
1089 error_get_pretty(local_err));
1090 error_free(local_err);
1091 qapi_free_GuestDiskAddress(address);
1092 address = NULL;
1093 } else {
1094 disk->address = address;
1095 }
1096
1097 QAPI_LIST_PREPEND(ret, disk);
1098 }
1099
1100 SetupDiDestroyDeviceInfoList(dev_info);
1101 return ret;
1102 }
1103
1104 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
1105 {
1106 DWORD info_size;
1107 char mnt, *mnt_point;
1108 wchar_t wfs_name[32];
1109 char fs_name[32];
1110 wchar_t vol_info[MAX_PATH + 1];
1111 size_t len;
1112 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1113 GuestFilesystemInfo *fs = NULL;
1114 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1115
1116 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1117 if (GetLastError() != ERROR_MORE_DATA) {
1118 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1119 return NULL;
1120 }
1121
1122 mnt_point = g_malloc(info_size + 1);
1123 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1124 &info_size)) {
1125 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1126 goto free;
1127 }
1128
1129 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1130 FILE_ATTRIBUTE_NORMAL |
1131 FILE_FLAG_BACKUP_SEMANTICS, NULL);
1132 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1133 error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1134 goto free;
1135 }
1136
1137 len = strlen(mnt_point);
1138 mnt_point[len] = '\\';
1139 mnt_point[len + 1] = 0;
1140
1141 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1142 sizeof(vol_info), NULL, NULL, NULL,
1143 (LPWSTR) & wfs_name, sizeof(wfs_name))) {
1144 if (GetLastError() != ERROR_NOT_READY) {
1145 error_setg_win32(errp, GetLastError(), "failed to get volume info");
1146 }
1147 goto free;
1148 }
1149
1150 fs = g_malloc(sizeof(*fs));
1151 fs->name = g_strdup(guid);
1152 fs->has_total_bytes = false;
1153 fs->has_used_bytes = false;
1154 if (len == 0) {
1155 fs->mountpoint = g_strdup("System Reserved");
1156 } else {
1157 fs->mountpoint = g_strndup(mnt_point, len);
1158 if (GetDiskFreeSpaceEx(fs->mountpoint,
1159 (PULARGE_INTEGER) & i64FreeBytesToCaller,
1160 (PULARGE_INTEGER) & i64TotalBytes,
1161 (PULARGE_INTEGER) & i64FreeBytes)) {
1162 fs->used_bytes = i64TotalBytes - i64FreeBytes;
1163 fs->total_bytes = i64TotalBytes;
1164 fs->has_total_bytes = true;
1165 fs->has_used_bytes = true;
1166 }
1167 }
1168 wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1169 fs->type = g_strdup(fs_name);
1170 fs->disk = build_guest_disk_info(guid, errp);
1171 free:
1172 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1173 CloseHandle(hLocalDiskHandle);
1174 }
1175 g_free(mnt_point);
1176 return fs;
1177 }
1178
1179 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1180 {
1181 HANDLE vol_h;
1182 GuestFilesystemInfoList *ret = NULL;
1183 char guid[256];
1184
1185 vol_h = FindFirstVolume(guid, sizeof(guid));
1186 if (vol_h == INVALID_HANDLE_VALUE) {
1187 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1188 return NULL;
1189 }
1190
1191 do {
1192 Error *local_err = NULL;
1193 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1194 if (local_err) {
1195 g_debug("failed to get filesystem info, ignoring error: %s",
1196 error_get_pretty(local_err));
1197 error_free(local_err);
1198 continue;
1199 }
1200 QAPI_LIST_PREPEND(ret, info);
1201 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1202
1203 if (GetLastError() != ERROR_NO_MORE_FILES) {
1204 error_setg_win32(errp, GetLastError(), "failed to find next volume");
1205 }
1206
1207 FindVolumeClose(vol_h);
1208 return ret;
1209 }
1210
1211 /*
1212 * Return status of freeze/thaw
1213 */
1214 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1215 {
1216 if (!vss_initialized()) {
1217 error_setg(errp, QERR_UNSUPPORTED);
1218 return 0;
1219 }
1220
1221 if (ga_is_frozen(ga_state)) {
1222 return GUEST_FSFREEZE_STATUS_FROZEN;
1223 }
1224
1225 return GUEST_FSFREEZE_STATUS_THAWED;
1226 }
1227
1228 /*
1229 * Freeze local file systems using Volume Shadow-copy Service.
1230 * The frozen state is limited for up to 10 seconds by VSS.
1231 */
1232 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1233 {
1234 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1235 }
1236
1237 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1238 strList *mountpoints,
1239 Error **errp)
1240 {
1241 int i;
1242 Error *local_err = NULL;
1243
1244 if (!vss_initialized()) {
1245 error_setg(errp, QERR_UNSUPPORTED);
1246 return 0;
1247 }
1248
1249 slog("guest-fsfreeze called");
1250
1251 /* cannot risk guest agent blocking itself on a write in this state */
1252 ga_set_frozen(ga_state);
1253
1254 qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1255 if (local_err) {
1256 error_propagate(errp, local_err);
1257 goto error;
1258 }
1259
1260 return i;
1261
1262 error:
1263 local_err = NULL;
1264 qmp_guest_fsfreeze_thaw(&local_err);
1265 if (local_err) {
1266 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1267 error_free(local_err);
1268 }
1269 return 0;
1270 }
1271
1272 /*
1273 * Thaw local file systems using Volume Shadow-copy Service.
1274 */
1275 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1276 {
1277 int i;
1278
1279 if (!vss_initialized()) {
1280 error_setg(errp, QERR_UNSUPPORTED);
1281 return 0;
1282 }
1283
1284 qga_vss_fsfreeze(&i, false, NULL, errp);
1285
1286 ga_unset_frozen(ga_state);
1287 return i;
1288 }
1289
1290 static void guest_fsfreeze_cleanup(void)
1291 {
1292 Error *err = NULL;
1293
1294 if (!vss_initialized()) {
1295 return;
1296 }
1297
1298 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1299 qmp_guest_fsfreeze_thaw(&err);
1300 if (err) {
1301 slog("failed to clean up frozen filesystems: %s",
1302 error_get_pretty(err));
1303 error_free(err);
1304 }
1305 }
1306
1307 vss_deinit(true);
1308 }
1309
1310 /*
1311 * Walk list of mounted file systems in the guest, and discard unused
1312 * areas.
1313 */
1314 GuestFilesystemTrimResponse *
1315 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1316 {
1317 GuestFilesystemTrimResponse *resp;
1318 HANDLE handle;
1319 WCHAR guid[MAX_PATH] = L"";
1320 OSVERSIONINFO osvi;
1321 BOOL win8_or_later;
1322
1323 ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1324 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1325 GetVersionEx(&osvi);
1326 win8_or_later = (osvi.dwMajorVersion > 6 ||
1327 ((osvi.dwMajorVersion == 6) &&
1328 (osvi.dwMinorVersion >= 2)));
1329 if (!win8_or_later) {
1330 error_setg(errp, "fstrim is only supported for Win8+");
1331 return NULL;
1332 }
1333
1334 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1335 if (handle == INVALID_HANDLE_VALUE) {
1336 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1337 return NULL;
1338 }
1339
1340 resp = g_new0(GuestFilesystemTrimResponse, 1);
1341
1342 do {
1343 GuestFilesystemTrimResult *res;
1344 PWCHAR uc_path;
1345 DWORD char_count = 0;
1346 char *path, *out;
1347 GError *gerr = NULL;
1348 gchar *argv[4];
1349
1350 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1351
1352 if (GetLastError() != ERROR_MORE_DATA) {
1353 continue;
1354 }
1355 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1356 continue;
1357 }
1358
1359 uc_path = g_new(WCHAR, char_count);
1360 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1361 &char_count) || !*uc_path) {
1362 /* strange, but this condition could be faced even with size == 2 */
1363 g_free(uc_path);
1364 continue;
1365 }
1366
1367 res = g_new0(GuestFilesystemTrimResult, 1);
1368
1369 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1370
1371 g_free(uc_path);
1372
1373 if (!path) {
1374 res->error = g_strdup(gerr->message);
1375 g_error_free(gerr);
1376 break;
1377 }
1378
1379 res->path = path;
1380
1381 QAPI_LIST_PREPEND(resp->paths, res);
1382
1383 memset(argv, 0, sizeof(argv));
1384 argv[0] = (gchar *)"defrag.exe";
1385 argv[1] = (gchar *)"/L";
1386 argv[2] = path;
1387
1388 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1389 &out /* stdout */, NULL /* stdin */,
1390 NULL, &gerr)) {
1391 res->error = g_strdup(gerr->message);
1392 g_error_free(gerr);
1393 } else {
1394 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1395 Error is reported in the output with something like
1396 (x89000020) etc code in the stdout */
1397
1398 int i;
1399 gchar **lines = g_strsplit(out, "\r\n", 0);
1400 g_free(out);
1401
1402 for (i = 0; lines[i] != NULL; i++) {
1403 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1404 continue;
1405 }
1406 res->error = g_strdup(lines[i]);
1407 break;
1408 }
1409 g_strfreev(lines);
1410 }
1411 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1412
1413 FindVolumeClose(handle);
1414 return resp;
1415 }
1416
1417 typedef enum {
1418 GUEST_SUSPEND_MODE_DISK,
1419 GUEST_SUSPEND_MODE_RAM
1420 } GuestSuspendMode;
1421
1422 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1423 {
1424 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1425
1426 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1427 if (!GetPwrCapabilities(&sys_pwr_caps)) {
1428 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1429 "failed to determine guest suspend capabilities");
1430 return;
1431 }
1432
1433 switch (mode) {
1434 case GUEST_SUSPEND_MODE_DISK:
1435 if (!sys_pwr_caps.SystemS4) {
1436 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1437 "suspend-to-disk not supported by OS");
1438 }
1439 break;
1440 case GUEST_SUSPEND_MODE_RAM:
1441 if (!sys_pwr_caps.SystemS3) {
1442 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1443 "suspend-to-ram not supported by OS");
1444 }
1445 break;
1446 default:
1447 abort();
1448 }
1449 }
1450
1451 static DWORD WINAPI do_suspend(LPVOID opaque)
1452 {
1453 GuestSuspendMode *mode = opaque;
1454 DWORD ret = 0;
1455
1456 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1457 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1458 slog("failed to suspend guest: %s", emsg);
1459 ret = -1;
1460 }
1461 g_free(mode);
1462 return ret;
1463 }
1464
1465 void qmp_guest_suspend_disk(Error **errp)
1466 {
1467 Error *local_err = NULL;
1468 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1469
1470 *mode = GUEST_SUSPEND_MODE_DISK;
1471 check_suspend_mode(*mode, &local_err);
1472 if (local_err) {
1473 goto out;
1474 }
1475 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1476 if (local_err) {
1477 goto out;
1478 }
1479 execute_async(do_suspend, mode, &local_err);
1480
1481 out:
1482 if (local_err) {
1483 error_propagate(errp, local_err);
1484 g_free(mode);
1485 }
1486 }
1487
1488 void qmp_guest_suspend_ram(Error **errp)
1489 {
1490 Error *local_err = NULL;
1491 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1492
1493 *mode = GUEST_SUSPEND_MODE_RAM;
1494 check_suspend_mode(*mode, &local_err);
1495 if (local_err) {
1496 goto out;
1497 }
1498 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1499 if (local_err) {
1500 goto out;
1501 }
1502 execute_async(do_suspend, mode, &local_err);
1503
1504 out:
1505 if (local_err) {
1506 error_propagate(errp, local_err);
1507 g_free(mode);
1508 }
1509 }
1510
1511 void qmp_guest_suspend_hybrid(Error **errp)
1512 {
1513 error_setg(errp, QERR_UNSUPPORTED);
1514 }
1515
1516 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1517 {
1518 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1519 ULONG adptr_addrs_len = 0;
1520 DWORD ret;
1521
1522 /* Call the first time to get the adptr_addrs_len. */
1523 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1524 NULL, adptr_addrs, &adptr_addrs_len);
1525
1526 adptr_addrs = g_malloc(adptr_addrs_len);
1527 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1528 NULL, adptr_addrs, &adptr_addrs_len);
1529 if (ret != ERROR_SUCCESS) {
1530 error_setg_win32(errp, ret, "failed to get adapters addresses");
1531 g_free(adptr_addrs);
1532 adptr_addrs = NULL;
1533 }
1534 return adptr_addrs;
1535 }
1536
1537 static char *guest_wctomb_dup(WCHAR *wstr)
1538 {
1539 char *str;
1540 size_t str_size;
1541
1542 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1543 /* add 1 to str_size for NULL terminator */
1544 str = g_malloc(str_size + 1);
1545 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1546 return str;
1547 }
1548
1549 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1550 Error **errp)
1551 {
1552 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1553 DWORD len;
1554 int ret;
1555
1556 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1557 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1558 len = sizeof(addr_str);
1559 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1560 ip_addr->Address.iSockaddrLength,
1561 NULL,
1562 addr_str,
1563 &len);
1564 if (ret != 0) {
1565 error_setg_win32(errp, WSAGetLastError(),
1566 "failed address presentation form conversion");
1567 return NULL;
1568 }
1569 return g_strdup(addr_str);
1570 }
1571 return NULL;
1572 }
1573
1574 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1575 {
1576 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1577 * field to obtain the prefix.
1578 */
1579 return ip_addr->OnLinkPrefixLength;
1580 }
1581
1582 #define INTERFACE_PATH_BUF_SZ 512
1583
1584 static DWORD get_interface_index(const char *guid)
1585 {
1586 ULONG index;
1587 DWORD status;
1588 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1589 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1590 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1591 status = GetAdapterIndex (wbuf, &index);
1592 if (status != NO_ERROR) {
1593 return (DWORD)~0;
1594 } else {
1595 return index;
1596 }
1597 }
1598
1599 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1600
1601 static int guest_get_network_stats(const char *name,
1602 GuestNetworkInterfaceStat *stats)
1603 {
1604 OSVERSIONINFO os_ver;
1605
1606 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1607 GetVersionEx(&os_ver);
1608 if (os_ver.dwMajorVersion >= 6) {
1609 MIB_IF_ROW2 a_mid_ifrow;
1610 GetIfEntry2Func getifentry2_ex;
1611 DWORD if_index = 0;
1612 HMODULE module = GetModuleHandle("iphlpapi");
1613 PVOID func = GetProcAddress(module, "GetIfEntry2");
1614
1615 if (func == NULL) {
1616 return -1;
1617 }
1618
1619 getifentry2_ex = (GetIfEntry2Func)func;
1620 if_index = get_interface_index(name);
1621 if (if_index == (DWORD)~0) {
1622 return -1;
1623 }
1624
1625 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1626 a_mid_ifrow.InterfaceIndex = if_index;
1627 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1628 stats->rx_bytes = a_mid_ifrow.InOctets;
1629 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1630 stats->rx_errs = a_mid_ifrow.InErrors;
1631 stats->rx_dropped = a_mid_ifrow.InDiscards;
1632 stats->tx_bytes = a_mid_ifrow.OutOctets;
1633 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1634 stats->tx_errs = a_mid_ifrow.OutErrors;
1635 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1636 return 0;
1637 }
1638 }
1639 return -1;
1640 }
1641
1642 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1643 {
1644 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1645 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1646 GuestNetworkInterfaceList *head = NULL, **tail = &head;
1647 GuestIpAddressList *head_addr, **tail_addr;
1648 GuestNetworkInterface *info;
1649 GuestNetworkInterfaceStat *interface_stat = NULL;
1650 GuestIpAddress *address_item = NULL;
1651 unsigned char *mac_addr;
1652 char *addr_str;
1653 WORD wsa_version;
1654 WSADATA wsa_data;
1655 int ret;
1656
1657 adptr_addrs = guest_get_adapters_addresses(errp);
1658 if (adptr_addrs == NULL) {
1659 return NULL;
1660 }
1661
1662 /* Make WSA APIs available. */
1663 wsa_version = MAKEWORD(2, 2);
1664 ret = WSAStartup(wsa_version, &wsa_data);
1665 if (ret != 0) {
1666 error_setg_win32(errp, ret, "failed socket startup");
1667 goto out;
1668 }
1669
1670 for (addr = adptr_addrs; addr; addr = addr->Next) {
1671 info = g_malloc0(sizeof(*info));
1672
1673 QAPI_LIST_APPEND(tail, info);
1674
1675 info->name = guest_wctomb_dup(addr->FriendlyName);
1676
1677 if (addr->PhysicalAddressLength != 0) {
1678 mac_addr = addr->PhysicalAddress;
1679
1680 info->hardware_address =
1681 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1682 (int) mac_addr[0], (int) mac_addr[1],
1683 (int) mac_addr[2], (int) mac_addr[3],
1684 (int) mac_addr[4], (int) mac_addr[5]);
1685 }
1686
1687 head_addr = NULL;
1688 tail_addr = &head_addr;
1689 for (ip_addr = addr->FirstUnicastAddress;
1690 ip_addr;
1691 ip_addr = ip_addr->Next) {
1692 addr_str = guest_addr_to_str(ip_addr, errp);
1693 if (addr_str == NULL) {
1694 continue;
1695 }
1696
1697 address_item = g_malloc0(sizeof(*address_item));
1698
1699 QAPI_LIST_APPEND(tail_addr, address_item);
1700
1701 address_item->ip_address = addr_str;
1702 address_item->prefix = guest_ip_prefix(ip_addr);
1703 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1704 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1705 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1706 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1707 }
1708 }
1709 if (head_addr) {
1710 info->has_ip_addresses = true;
1711 info->ip_addresses = head_addr;
1712 }
1713 if (!info->statistics) {
1714 interface_stat = g_malloc0(sizeof(*interface_stat));
1715 if (guest_get_network_stats(addr->AdapterName, interface_stat)
1716 == -1) {
1717 g_free(interface_stat);
1718 } else {
1719 info->statistics = interface_stat;
1720 }
1721 }
1722 }
1723 WSACleanup();
1724 out:
1725 g_free(adptr_addrs);
1726 return head;
1727 }
1728
1729 static int64_t filetime_to_ns(const FILETIME *tf)
1730 {
1731 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime)
1732 - W32_FT_OFFSET) * 100;
1733 }
1734
1735 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1736 {
1737 Error *local_err = NULL;
1738 SYSTEMTIME ts;
1739 FILETIME tf;
1740 LONGLONG time;
1741
1742 if (!has_time) {
1743 /* Unfortunately, Windows libraries don't provide an easy way to access
1744 * RTC yet:
1745 *
1746 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1747 *
1748 * Instead, a workaround is to use the Windows win32tm command to
1749 * resync the time using the Windows Time service.
1750 */
1751 LPVOID msg_buffer;
1752 DWORD ret_flags;
1753
1754 HRESULT hr = system("w32tm /resync /nowait");
1755
1756 if (GetLastError() != 0) {
1757 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1758 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1759 } else if (hr != 0) {
1760 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1761 error_setg(errp, "Windows Time service not running on the "
1762 "guest");
1763 } else {
1764 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1765 FORMAT_MESSAGE_FROM_SYSTEM |
1766 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1767 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1768 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1769 NULL)) {
1770 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1771 "t retrieve error message", hr);
1772 } else {
1773 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1774 (LPCTSTR)msg_buffer);
1775 LocalFree(msg_buffer);
1776 }
1777 }
1778 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1779 error_setg(errp, "No internet connection on guest, sync not "
1780 "accurate");
1781 }
1782 return;
1783 }
1784
1785 /* Validate time passed by user. */
1786 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1787 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1788 return;
1789 }
1790
1791 time = time_ns / 100 + W32_FT_OFFSET;
1792
1793 tf.dwLowDateTime = (DWORD) time;
1794 tf.dwHighDateTime = (DWORD) (time >> 32);
1795
1796 if (!FileTimeToSystemTime(&tf, &ts)) {
1797 error_setg(errp, "Failed to convert system time %d",
1798 (int)GetLastError());
1799 return;
1800 }
1801
1802 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1803 if (local_err) {
1804 error_propagate(errp, local_err);
1805 return;
1806 }
1807
1808 if (!SetSystemTime(&ts)) {
1809 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1810 return;
1811 }
1812 }
1813
1814 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1815 {
1816 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1817 DWORD length;
1818 GuestLogicalProcessorList *head, **tail;
1819 Error *local_err = NULL;
1820 int64_t current;
1821
1822 ptr = pslpi = NULL;
1823 length = 0;
1824 current = 0;
1825 head = NULL;
1826 tail = &head;
1827
1828 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1829 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1830 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1831 ptr = pslpi = g_malloc0(length);
1832 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1833 error_setg(&local_err, "Failed to get processor information: %d",
1834 (int)GetLastError());
1835 }
1836 } else {
1837 error_setg(&local_err,
1838 "Failed to get processor information buffer length: %d",
1839 (int)GetLastError());
1840 }
1841
1842 while ((local_err == NULL) && (length > 0)) {
1843 if (pslpi->Relationship == RelationProcessorCore) {
1844 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1845
1846 while (cpu_bits > 0) {
1847 if (!!(cpu_bits & 1)) {
1848 GuestLogicalProcessor *vcpu;
1849
1850 vcpu = g_malloc0(sizeof *vcpu);
1851 vcpu->logical_id = current++;
1852 vcpu->online = true;
1853 vcpu->has_can_offline = true;
1854
1855 QAPI_LIST_APPEND(tail, vcpu);
1856 }
1857 cpu_bits >>= 1;
1858 }
1859 }
1860 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1861 pslpi++; /* next entry */
1862 }
1863
1864 g_free(ptr);
1865
1866 if (local_err == NULL) {
1867 if (head != NULL) {
1868 return head;
1869 }
1870 /* there's no guest with zero VCPUs */
1871 error_setg(&local_err, "Guest reported zero VCPUs");
1872 }
1873
1874 qapi_free_GuestLogicalProcessorList(head);
1875 error_propagate(errp, local_err);
1876 return NULL;
1877 }
1878
1879 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1880 {
1881 error_setg(errp, QERR_UNSUPPORTED);
1882 return -1;
1883 }
1884
1885 static gchar *
1886 get_net_error_message(gint error)
1887 {
1888 HMODULE module = NULL;
1889 gchar *retval = NULL;
1890 wchar_t *msg = NULL;
1891 int flags;
1892 size_t nchars;
1893
1894 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1895 FORMAT_MESSAGE_IGNORE_INSERTS |
1896 FORMAT_MESSAGE_FROM_SYSTEM;
1897
1898 if (error >= NERR_BASE && error <= MAX_NERR) {
1899 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1900
1901 if (module != NULL) {
1902 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1903 }
1904 }
1905
1906 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1907
1908 if (msg != NULL) {
1909 nchars = wcslen(msg);
1910
1911 if (nchars >= 2 &&
1912 msg[nchars - 1] == L'\n' &&
1913 msg[nchars - 2] == L'\r') {
1914 msg[nchars - 2] = L'\0';
1915 }
1916
1917 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1918
1919 LocalFree(msg);
1920 }
1921
1922 if (module != NULL) {
1923 FreeLibrary(module);
1924 }
1925
1926 return retval;
1927 }
1928
1929 void qmp_guest_set_user_password(const char *username,
1930 const char *password,
1931 bool crypted,
1932 Error **errp)
1933 {
1934 NET_API_STATUS nas;
1935 char *rawpasswddata = NULL;
1936 size_t rawpasswdlen;
1937 wchar_t *user = NULL, *wpass = NULL;
1938 USER_INFO_1003 pi1003 = { 0, };
1939 GError *gerr = NULL;
1940
1941 if (crypted) {
1942 error_setg(errp, QERR_UNSUPPORTED);
1943 return;
1944 }
1945
1946 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1947 if (!rawpasswddata) {
1948 return;
1949 }
1950 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1951 rawpasswddata[rawpasswdlen] = '\0';
1952
1953 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1954 if (!user) {
1955 goto done;
1956 }
1957
1958 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1959 if (!wpass) {
1960 goto done;
1961 }
1962
1963 pi1003.usri1003_password = wpass;
1964 nas = NetUserSetInfo(NULL, user,
1965 1003, (LPBYTE)&pi1003,
1966 NULL);
1967
1968 if (nas != NERR_Success) {
1969 gchar *msg = get_net_error_message(nas);
1970 error_setg(errp, "failed to set password: %s", msg);
1971 g_free(msg);
1972 }
1973
1974 done:
1975 if (gerr) {
1976 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1977 g_error_free(gerr);
1978 }
1979 g_free(user);
1980 g_free(wpass);
1981 g_free(rawpasswddata);
1982 }
1983
1984 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1985 {
1986 error_setg(errp, QERR_UNSUPPORTED);
1987 return NULL;
1988 }
1989
1990 GuestMemoryBlockResponseList *
1991 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1992 {
1993 error_setg(errp, QERR_UNSUPPORTED);
1994 return NULL;
1995 }
1996
1997 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1998 {
1999 error_setg(errp, QERR_UNSUPPORTED);
2000 return NULL;
2001 }
2002
2003 /* add unsupported commands to the list of blocked RPCs */
2004 GList *ga_command_init_blockedrpcs(GList *blockedrpcs)
2005 {
2006 const char *list_unsupported[] = {
2007 "guest-suspend-hybrid",
2008 "guest-set-vcpus",
2009 "guest-get-memory-blocks", "guest-set-memory-blocks",
2010 "guest-get-memory-block-size", "guest-get-memory-block-info",
2011 NULL};
2012 char **p = (char **)list_unsupported;
2013
2014 while (*p) {
2015 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2016 }
2017
2018 if (!vss_init(true)) {
2019 g_debug("vss_init failed, vss commands are going to be disabled");
2020 const char *list[] = {
2021 "guest-get-fsinfo", "guest-fsfreeze-status",
2022 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
2023 p = (char **)list;
2024
2025 while (*p) {
2026 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2027 }
2028 }
2029
2030 return blockedrpcs;
2031 }
2032
2033 /* register init/cleanup routines for stateful command groups */
2034 void ga_command_state_init(GAState *s, GACommandState *cs)
2035 {
2036 if (!vss_initialized()) {
2037 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
2038 }
2039 }
2040
2041 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
2042 typedef struct _GA_WTSINFOA {
2043 WTS_CONNECTSTATE_CLASS State;
2044 DWORD SessionId;
2045 DWORD IncomingBytes;
2046 DWORD OutgoingBytes;
2047 DWORD IncomingFrames;
2048 DWORD OutgoingFrames;
2049 DWORD IncomingCompressedBytes;
2050 DWORD OutgoingCompressedBy;
2051 CHAR WinStationName[WINSTATIONNAME_LENGTH];
2052 CHAR Domain[DOMAIN_LENGTH];
2053 CHAR UserName[USERNAME_LENGTH + 1];
2054 LARGE_INTEGER ConnectTime;
2055 LARGE_INTEGER DisconnectTime;
2056 LARGE_INTEGER LastInputTime;
2057 LARGE_INTEGER LogonTime;
2058 LARGE_INTEGER CurrentTime;
2059
2060 } GA_WTSINFOA;
2061
2062 GuestUserList *qmp_guest_get_users(Error **errp)
2063 {
2064 #define QGA_NANOSECONDS 10000000
2065
2066 GHashTable *cache = NULL;
2067 GuestUserList *head = NULL, **tail = &head;
2068
2069 DWORD buffer_size = 0, count = 0, i = 0;
2070 GA_WTSINFOA *info = NULL;
2071 WTS_SESSION_INFOA *entries = NULL;
2072 GuestUser *user = NULL;
2073 gpointer value = NULL;
2074 INT64 login = 0;
2075 double login_time = 0;
2076
2077 cache = g_hash_table_new(g_str_hash, g_str_equal);
2078
2079 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2080 for (i = 0; i < count; ++i) {
2081 buffer_size = 0;
2082 info = NULL;
2083 if (WTSQuerySessionInformationA(
2084 NULL,
2085 entries[i].SessionId,
2086 WTSSessionInfo,
2087 (LPSTR *)&info,
2088 &buffer_size
2089 )) {
2090
2091 if (strlen(info->UserName) == 0) {
2092 WTSFreeMemory(info);
2093 continue;
2094 }
2095
2096 login = info->LogonTime.QuadPart;
2097 login -= W32_FT_OFFSET;
2098 login_time = ((double)login) / QGA_NANOSECONDS;
2099
2100 if (g_hash_table_contains(cache, info->UserName)) {
2101 value = g_hash_table_lookup(cache, info->UserName);
2102 user = (GuestUser *)value;
2103 if (user->login_time > login_time) {
2104 user->login_time = login_time;
2105 }
2106 } else {
2107 user = g_new0(GuestUser, 1);
2108
2109 user->user = g_strdup(info->UserName);
2110 user->domain = g_strdup(info->Domain);
2111
2112 user->login_time = login_time;
2113
2114 g_hash_table_add(cache, user->user);
2115
2116 QAPI_LIST_APPEND(tail, user);
2117 }
2118 }
2119 WTSFreeMemory(info);
2120 }
2121 WTSFreeMemory(entries);
2122 }
2123 g_hash_table_destroy(cache);
2124 return head;
2125 }
2126
2127 typedef struct _ga_matrix_lookup_t {
2128 int major;
2129 int minor;
2130 char const *version;
2131 char const *version_id;
2132 } ga_matrix_lookup_t;
2133
2134 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = {
2135 {
2136 /* Desktop editions */
2137 { 5, 0, "Microsoft Windows 2000", "2000"},
2138 { 5, 1, "Microsoft Windows XP", "xp"},
2139 { 6, 0, "Microsoft Windows Vista", "vista"},
2140 { 6, 1, "Microsoft Windows 7" "7"},
2141 { 6, 2, "Microsoft Windows 8", "8"},
2142 { 6, 3, "Microsoft Windows 8.1", "8.1"},
2143 { 0, 0, 0}
2144 },{
2145 /* Server editions */
2146 { 5, 2, "Microsoft Windows Server 2003", "2003"},
2147 { 6, 0, "Microsoft Windows Server 2008", "2008"},
2148 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2149 { 6, 2, "Microsoft Windows Server 2012", "2012"},
2150 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2151 { 0, 0, 0},
2152 { 0, 0, 0}
2153 }
2154 };
2155
2156 typedef struct _ga_win_10_0_t {
2157 int first_build;
2158 char const *version;
2159 char const *version_id;
2160 } ga_win_10_0_t;
2161
2162 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = {
2163 {14393, "Microsoft Windows Server 2016", "2016"},
2164 {17763, "Microsoft Windows Server 2019", "2019"},
2165 {20344, "Microsoft Windows Server 2022", "2022"},
2166 {0, 0}
2167 };
2168
2169 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = {
2170 {10240, "Microsoft Windows 10", "10"},
2171 {22000, "Microsoft Windows 11", "11"},
2172 {0, 0}
2173 };
2174
2175 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2176 {
2177 typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2178 RTL_OSVERSIONINFOEXW *os_version_info_ex);
2179
2180 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2181
2182 HMODULE module = GetModuleHandle("ntdll");
2183 PVOID fun = GetProcAddress(module, "RtlGetVersion");
2184 if (fun == NULL) {
2185 error_setg(errp, QERR_QGA_COMMAND_FAILED,
2186 "Failed to get address of RtlGetVersion");
2187 return;
2188 }
2189
2190 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2191 rtl_get_version(info);
2192 return;
2193 }
2194
2195 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
2196 {
2197 DWORD major = os_version->dwMajorVersion;
2198 DWORD minor = os_version->dwMinorVersion;
2199 DWORD build = os_version->dwBuildNumber;
2200 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2201 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
2202 ga_win_10_0_t const *win_10_0_table = tbl_idx ?
2203 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX;
2204 ga_win_10_0_t const *win_10_0_version = NULL;
2205 while (table->version != NULL) {
2206 if (major == 10 && minor == 0) {
2207 while (win_10_0_table->version != NULL) {
2208 if (build >= win_10_0_table->first_build) {
2209 win_10_0_version = win_10_0_table;
2210 }
2211 win_10_0_table++;
2212 }
2213 if (win_10_0_table) {
2214 if (id) {
2215 return g_strdup(win_10_0_version->version_id);
2216 } else {
2217 return g_strdup(win_10_0_version->version);
2218 }
2219 }
2220 } else if (major == table->major && minor == table->minor) {
2221 if (id) {
2222 return g_strdup(table->version_id);
2223 } else {
2224 return g_strdup(table->version);
2225 }
2226 }
2227 ++table;
2228 }
2229 slog("failed to lookup Windows version: major=%lu, minor=%lu",
2230 major, minor);
2231 return g_strdup("N/A");
2232 }
2233
2234 static char *ga_get_win_product_name(Error **errp)
2235 {
2236 HKEY key = INVALID_HANDLE_VALUE;
2237 DWORD size = 128;
2238 char *result = g_malloc0(size);
2239 LONG err = ERROR_SUCCESS;
2240
2241 err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2242 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2243 &key);
2244 if (err != ERROR_SUCCESS) {
2245 error_setg_win32(errp, err, "failed to open registry key");
2246 g_free(result);
2247 return NULL;
2248 }
2249
2250 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2251 (LPBYTE)result, &size);
2252 if (err == ERROR_MORE_DATA) {
2253 slog("ProductName longer than expected (%lu bytes), retrying",
2254 size);
2255 g_free(result);
2256 result = NULL;
2257 if (size > 0) {
2258 result = g_malloc0(size);
2259 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2260 (LPBYTE)result, &size);
2261 }
2262 }
2263 if (err != ERROR_SUCCESS) {
2264 error_setg_win32(errp, err, "failed to retrive ProductName");
2265 goto fail;
2266 }
2267
2268 RegCloseKey(key);
2269 return result;
2270
2271 fail:
2272 if (key != INVALID_HANDLE_VALUE) {
2273 RegCloseKey(key);
2274 }
2275 g_free(result);
2276 return NULL;
2277 }
2278
2279 static char *ga_get_current_arch(void)
2280 {
2281 SYSTEM_INFO info;
2282 GetNativeSystemInfo(&info);
2283 char *result = NULL;
2284 switch (info.wProcessorArchitecture) {
2285 case PROCESSOR_ARCHITECTURE_AMD64:
2286 result = g_strdup("x86_64");
2287 break;
2288 case PROCESSOR_ARCHITECTURE_ARM:
2289 result = g_strdup("arm");
2290 break;
2291 case PROCESSOR_ARCHITECTURE_IA64:
2292 result = g_strdup("ia64");
2293 break;
2294 case PROCESSOR_ARCHITECTURE_INTEL:
2295 result = g_strdup("x86");
2296 break;
2297 case PROCESSOR_ARCHITECTURE_UNKNOWN:
2298 default:
2299 slog("unknown processor architecture 0x%0x",
2300 info.wProcessorArchitecture);
2301 result = g_strdup("unknown");
2302 break;
2303 }
2304 return result;
2305 }
2306
2307 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
2308 {
2309 Error *local_err = NULL;
2310 OSVERSIONINFOEXW os_version = {0};
2311 bool server;
2312 char *product_name;
2313 GuestOSInfo *info;
2314
2315 ga_get_win_version(&os_version, &local_err);
2316 if (local_err) {
2317 error_propagate(errp, local_err);
2318 return NULL;
2319 }
2320
2321 server = os_version.wProductType != VER_NT_WORKSTATION;
2322 product_name = ga_get_win_product_name(errp);
2323 if (product_name == NULL) {
2324 return NULL;
2325 }
2326
2327 info = g_new0(GuestOSInfo, 1);
2328
2329 info->kernel_version = g_strdup_printf("%lu.%lu",
2330 os_version.dwMajorVersion,
2331 os_version.dwMinorVersion);
2332 info->kernel_release = g_strdup_printf("%lu",
2333 os_version.dwBuildNumber);
2334 info->machine = ga_get_current_arch();
2335
2336 info->id = g_strdup("mswindows");
2337 info->name = g_strdup("Microsoft Windows");
2338 info->pretty_name = product_name;
2339 info->version = ga_get_win_name(&os_version, false);
2340 info->version_id = ga_get_win_name(&os_version, true);
2341 info->variant = g_strdup(server ? "server" : "client");
2342 info->variant_id = g_strdup(server ? "server" : "client");
2343
2344 return info;
2345 }
2346
2347 /*
2348 * Safely get device property. Returned strings are using wide characters.
2349 * Caller is responsible for freeing the buffer.
2350 */
2351 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2352 PDEVPROPTYPE propType)
2353 {
2354 CONFIGRET cr;
2355 g_autofree LPBYTE buffer = NULL;
2356 ULONG buffer_len = 0;
2357
2358 /* First query for needed space */
2359 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2360 buffer, &buffer_len, 0);
2361 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2362
2363 slog("failed to get property size, error=0x%lx", cr);
2364 return NULL;
2365 }
2366 buffer = g_new0(BYTE, buffer_len + 1);
2367 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2368 buffer, &buffer_len, 0);
2369 if (cr != CR_SUCCESS) {
2370 slog("failed to get device property, error=0x%lx", cr);
2371 return NULL;
2372 }
2373 return g_steal_pointer(&buffer);
2374 }
2375
2376 static GStrv ga_get_hardware_ids(DEVINST devInstance)
2377 {
2378 GArray *values = NULL;
2379 DEVPROPTYPE cm_type;
2380 LPWSTR id;
2381 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2382 &qga_DEVPKEY_Device_HardwareIds, &cm_type);
2383 if (property == NULL) {
2384 slog("failed to get hardware IDs");
2385 return NULL;
2386 }
2387 if (*property == '\0') {
2388 /* empty list */
2389 return NULL;
2390 }
2391 values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2392 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2393 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2394 g_array_append_val(values, id8);
2395 }
2396 return (GStrv)g_array_free(values, FALSE);
2397 }
2398
2399 /*
2400 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2401 */
2402 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
2403
2404 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
2405 {
2406 GuestDeviceInfoList *head = NULL, **tail = &head;
2407 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2408 SP_DEVINFO_DATA dev_info_data;
2409 int i, j;
2410 GError *gerr = NULL;
2411 g_autoptr(GRegex) device_pci_re = NULL;
2412 DEVPROPTYPE cm_type;
2413
2414 device_pci_re = g_regex_new(DEVICE_PCI_RE,
2415 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
2416 &gerr);
2417 g_assert(device_pci_re != NULL);
2418
2419 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2420 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
2421 if (dev_info == INVALID_HANDLE_VALUE) {
2422 error_setg(errp, "failed to get device tree");
2423 return NULL;
2424 }
2425
2426 slog("enumerating devices");
2427 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2428 bool skip = true;
2429 g_autofree LPWSTR name = NULL;
2430 g_autofree LPFILETIME date = NULL;
2431 g_autofree LPWSTR version = NULL;
2432 g_auto(GStrv) hw_ids = NULL;
2433 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2434 g_autofree char *vendor_id = NULL;
2435 g_autofree char *device_id = NULL;
2436
2437 name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2438 &qga_DEVPKEY_NAME, &cm_type);
2439 if (name == NULL) {
2440 slog("failed to get device description");
2441 continue;
2442 }
2443 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2444 if (device->driver_name == NULL) {
2445 error_setg(errp, "conversion to utf8 failed (driver name)");
2446 return NULL;
2447 }
2448 slog("querying device: %s", device->driver_name);
2449 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2450 if (hw_ids == NULL) {
2451 continue;
2452 }
2453 for (j = 0; hw_ids[j] != NULL; j++) {
2454 g_autoptr(GMatchInfo) match_info;
2455 GuestDeviceIdPCI *id;
2456 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2457 continue;
2458 }
2459 skip = false;
2460
2461 vendor_id = g_match_info_fetch(match_info, 1);
2462 device_id = g_match_info_fetch(match_info, 2);
2463
2464 device->id = g_new0(GuestDeviceId, 1);
2465 device->id->type = GUEST_DEVICE_TYPE_PCI;
2466 id = &device->id->u.pci;
2467 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2468 id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2469
2470 break;
2471 }
2472 if (skip) {
2473 continue;
2474 }
2475
2476 version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2477 &qga_DEVPKEY_Device_DriverVersion, &cm_type);
2478 if (version == NULL) {
2479 slog("failed to get driver version");
2480 continue;
2481 }
2482 device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2483 NULL, NULL);
2484 if (device->driver_version == NULL) {
2485 error_setg(errp, "conversion to utf8 failed (driver version)");
2486 return NULL;
2487 }
2488
2489 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2490 &qga_DEVPKEY_Device_DriverDate, &cm_type);
2491 if (date == NULL) {
2492 slog("failed to get driver date");
2493 continue;
2494 }
2495 device->driver_date = filetime_to_ns(date);
2496 device->has_driver_date = true;
2497
2498 slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2499 device->driver_name, device->driver_date,
2500 device->driver_version);
2501 QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2502 }
2503
2504 if (dev_info != INVALID_HANDLE_VALUE) {
2505 SetupDiDestroyDeviceInfoList(dev_info);
2506 }
2507 return head;
2508 }
2509
2510 char *qga_get_host_name(Error **errp)
2511 {
2512 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
2513 DWORD size = G_N_ELEMENTS(tmp);
2514
2515 if (GetComputerNameW(tmp, &size) == 0) {
2516 error_setg_win32(errp, GetLastError(), "failed close handle");
2517 return NULL;
2518 }
2519
2520 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL);
2521 }
2522
2523 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
2524 {
2525 error_setg(errp, QERR_UNSUPPORTED);
2526 return NULL;
2527 }
2528
2529 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
2530 {
2531 error_setg(errp, QERR_UNSUPPORTED);
2532 return NULL;
2533 }
armbru's QEMU hackery