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target/ppc: Eliminate goto in mmubooke_check_tlb()
[qemu/armbru.git] / qga / commands-win32.c
blobd23875264f9a8ddbf304dd0fbe0165a844b94af7
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 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
488 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
489 /*
490 * BusTypeSpaces currently is not suported
491 */
492 [BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN,
493 [BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME,
494 };
495
496 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
497 {
498 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
499 return GUEST_DISK_BUS_TYPE_UNKNOWN;
500 }
501 return win2qemu[(int)bus];
502 }
503
504 DEFINE_GUID(GUID_DEVINTERFACE_DISK,
505 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2,
506 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
507 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT,
508 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82,
509 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
510
511 static void get_pci_address_for_device(GuestPCIAddress *pci,
512 HDEVINFO dev_info)
513 {
514 SP_DEVINFO_DATA dev_info_data;
515 DWORD j;
516 DWORD size;
517 bool partial_pci = false;
518
519 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
520
521 for (j = 0;
522 SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data);
523 j++) {
524 DWORD addr, bus, ui_slot, type;
525 int func, slot;
526 size = sizeof(DWORD);
527
528 /*
529 * There is no need to allocate buffer in the next functions. The
530 * size is known and ULONG according to
531 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
532 */
533 if (!SetupDiGetDeviceRegistryProperty(
534 dev_info, &dev_info_data, SPDRP_BUSNUMBER,
535 &type, (PBYTE)&bus, size, NULL)) {
536 debug_error("failed to get PCI bus");
537 bus = -1;
538 partial_pci = true;
539 }
540
541 /*
542 * The function retrieves the device's address. This value will be
543 * transformed into device function and number
544 */
545 if (!SetupDiGetDeviceRegistryProperty(
546 dev_info, &dev_info_data, SPDRP_ADDRESS,
547 &type, (PBYTE)&addr, size, NULL)) {
548 debug_error("failed to get PCI address");
549 addr = -1;
550 partial_pci = true;
551 }
552
553 /*
554 * This call returns UINumber of DEVICE_CAPABILITIES structure.
555 * This number is typically a user-perceived slot number.
556 */
557 if (!SetupDiGetDeviceRegistryProperty(
558 dev_info, &dev_info_data, SPDRP_UI_NUMBER,
559 &type, (PBYTE)&ui_slot, size, NULL)) {
560 debug_error("failed to get PCI slot");
561 ui_slot = -1;
562 partial_pci = true;
563 }
564
565 /*
566 * SetupApi gives us the same information as driver with
567 * IoGetDeviceProperty. According to Microsoft:
568 *
569 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
570 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
571 * SPDRP_ADDRESS is propertyAddress, so we do the same.
572 *
573 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
574 */
575 if (partial_pci) {
576 pci->domain = -1;
577 pci->slot = -1;
578 pci->function = -1;
579 pci->bus = -1;
580 continue;
581 } else {
582 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
583 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
584 if ((int)ui_slot != slot) {
585 g_debug("mismatch with reported slot values: %d vs %d",
586 (int)ui_slot, slot);
587 }
588 pci->domain = 0;
589 pci->slot = (int)ui_slot;
590 pci->function = func;
591 pci->bus = (int)bus;
592 return;
593 }
594 }
595 }
596
597 static GuestPCIAddress *get_empty_pci_address(void)
598 {
599 GuestPCIAddress *pci = NULL;
600
601 pci = g_malloc0(sizeof(*pci));
602 pci->domain = -1;
603 pci->slot = -1;
604 pci->function = -1;
605 pci->bus = -1;
606 return pci;
607 }
608
609 static GuestPCIAddress *get_pci_info(int number, Error **errp)
610 {
611 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
612 HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE;
613
614 SP_DEVINFO_DATA dev_info_data;
615 SP_DEVICE_INTERFACE_DATA dev_iface_data;
616 HANDLE dev_file;
617 int i;
618 GuestPCIAddress *pci = get_empty_pci_address();
619
620 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
621 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
622 if (dev_info == INVALID_HANDLE_VALUE) {
623 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
624 goto end;
625 }
626
627 g_debug("enumerating devices");
628 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
629 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
630 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
631 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
632 STORAGE_DEVICE_NUMBER sdn;
633 g_autofree char *parent_dev_id = NULL;
634 SP_DEVINFO_DATA parent_dev_info_data;
635 DWORD size = 0;
636
637 g_debug("getting device path");
638 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
639 &GUID_DEVINTERFACE_DISK, 0,
640 &dev_iface_data)) {
641 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
642 pdev_iface_detail_data,
643 size, &size,
644 &dev_info_data)) {
645 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
646 pdev_iface_detail_data = g_malloc(size);
647 pdev_iface_detail_data->cbSize =
648 sizeof(*pdev_iface_detail_data);
649 } else {
650 error_setg_win32(errp, GetLastError(),
651 "failed to get device interfaces");
652 goto end;
653 }
654 }
655
656 if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
657 pdev_iface_detail_data,
658 size, &size,
659 &dev_info_data)) {
660 // pdev_iface_detail_data already is allocated
661 error_setg_win32(errp, GetLastError(),
662 "failed to get device interfaces");
663 goto end;
664 }
665
666 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
667 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
668 NULL);
669
670 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
671 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
672 CloseHandle(dev_file);
673 error_setg_win32(errp, GetLastError(),
674 "failed to get device slot number");
675 goto end;
676 }
677
678 CloseHandle(dev_file);
679 if (sdn.DeviceNumber != number) {
680 continue;
681 }
682 } else {
683 error_setg_win32(errp, GetLastError(),
684 "failed to get device interfaces");
685 goto end;
686 }
687
688 g_debug("found device slot %d. Getting storage controller", number);
689 {
690 CONFIGRET cr;
691 DEVINST dev_inst, parent_dev_inst;
692 ULONG dev_id_size = 0;
693
694 size = 0;
695 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
696 parent_dev_id, size, &size)) {
697 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
698 parent_dev_id = g_malloc(size);
699 } else {
700 error_setg_win32(errp, GetLastError(),
701 "failed to get device instance ID");
702 goto end;
703 }
704 }
705
706 if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
707 parent_dev_id, size, &size)) {
708 // parent_dev_id already is allocated
709 error_setg_win32(errp, GetLastError(),
710 "failed to get device instance ID");
711 goto end;
712 }
713
714 /*
715 * CM API used here as opposed to
716 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
717 * which exports are only available in mingw-w64 6+
718 */
719 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
720 if (cr != CR_SUCCESS) {
721 g_error("CM_Locate_DevInst failed with code %lx", cr);
722 error_setg_win32(errp, GetLastError(),
723 "failed to get device instance");
724 goto end;
725 }
726 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
727 if (cr != CR_SUCCESS) {
728 g_error("CM_Get_Parent failed with code %lx", cr);
729 error_setg_win32(errp, GetLastError(),
730 "failed to get parent device instance");
731 goto end;
732 }
733
734 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
735 if (cr != CR_SUCCESS) {
736 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
737 error_setg_win32(errp, GetLastError(),
738 "failed to get parent device ID length");
739 goto end;
740 }
741
742 ++dev_id_size;
743 if (dev_id_size > size) {
744 g_free(parent_dev_id);
745 parent_dev_id = g_malloc(dev_id_size);
746 }
747
748 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
749 0);
750 if (cr != CR_SUCCESS) {
751 g_error("CM_Get_Device_ID failed with code %lx", cr);
752 error_setg_win32(errp, GetLastError(),
753 "failed to get parent device ID");
754 goto end;
755 }
756 }
757
758 g_debug("querying storage controller %s for PCI information",
759 parent_dev_id);
760 parent_dev_info =
761 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
762 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
763
764 if (parent_dev_info == INVALID_HANDLE_VALUE) {
765 error_setg_win32(errp, GetLastError(),
766 "failed to get parent device");
767 goto end;
768 }
769
770 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
771 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
772 error_setg_win32(errp, GetLastError(),
773 "failed to get parent device data");
774 goto end;
775 }
776
777 get_pci_address_for_device(pci, parent_dev_info);
778
779 break;
780 }
781
782 end:
783 if (parent_dev_info != INVALID_HANDLE_VALUE) {
784 SetupDiDestroyDeviceInfoList(parent_dev_info);
785 }
786 if (dev_info != INVALID_HANDLE_VALUE) {
787 SetupDiDestroyDeviceInfoList(dev_info);
788 }
789 return pci;
790 }
791
792 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
793 Error **errp)
794 {
795 STORAGE_PROPERTY_QUERY query;
796 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
797 DWORD received;
798 ULONG size = sizeof(buf);
799
800 dev_desc = &buf;
801 query.PropertyId = StorageDeviceProperty;
802 query.QueryType = PropertyStandardQuery;
803
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 bus type");
808 return;
809 }
810 disk->bus_type = find_bus_type(dev_desc->BusType);
811 g_debug("bus type %d", disk->bus_type);
812
813 /* Query once more. Now with long enough buffer. */
814 size = dev_desc->Size;
815 dev_desc = g_malloc0(size);
816 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
817 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
818 size, &received, NULL)) {
819 error_setg_win32(errp, GetLastError(), "failed to get serial number");
820 g_debug("failed to get serial number");
821 goto out_free;
822 }
823 if (dev_desc->SerialNumberOffset > 0) {
824 const char *serial;
825 size_t len;
826
827 if (dev_desc->SerialNumberOffset >= received) {
828 error_setg(errp, "failed to get serial number: offset outside the buffer");
829 g_debug("serial number offset outside the buffer");
830 goto out_free;
831 }
832 serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
833 len = received - dev_desc->SerialNumberOffset;
834 g_debug("serial number \"%s\"", serial);
835 if (*serial != 0) {
836 disk->serial = g_strndup(serial, len);
837 }
838 }
839 out_free:
840 g_free(dev_desc);
841
842 return;
843 }
844
845 static void get_single_disk_info(int disk_number,
846 GuestDiskAddress *disk, Error **errp)
847 {
848 SCSI_ADDRESS addr, *scsi_ad;
849 DWORD len;
850 HANDLE disk_h;
851 Error *local_err = NULL;
852
853 scsi_ad = &addr;
854
855 g_debug("getting disk info for: %s", disk->dev);
856 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
857 0, NULL);
858 if (disk_h == INVALID_HANDLE_VALUE) {
859 error_setg_win32(errp, GetLastError(), "failed to open disk");
860 return;
861 }
862
863 get_disk_properties(disk_h, disk, &local_err);
864 if (local_err) {
865 error_propagate(errp, local_err);
866 goto err_close;
867 }
868
869 g_debug("bus type %d", disk->bus_type);
870 /* always set pci_controller as required by schema. get_pci_info() should
871 * report -1 values for non-PCI buses rather than fail. fail the command
872 * if that doesn't hold since that suggests some other unexpected
873 * breakage
874 */
875 if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) {
876 disk->pci_controller = get_empty_pci_address();
877 } else {
878 disk->pci_controller = get_pci_info(disk_number, &local_err);
879 if (local_err) {
880 error_propagate(errp, local_err);
881 goto err_close;
882 }
883 }
884 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
885 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
886 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
887 /* This bus type is not supported before Windows Server 2003 SP1 */
888 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
889 ) {
890 /* We are able to use the same ioctls for different bus types
891 * according to Microsoft docs
892 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
893 g_debug("getting SCSI info");
894 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
895 sizeof(SCSI_ADDRESS), &len, NULL)) {
896 disk->unit = addr.Lun;
897 disk->target = addr.TargetId;
898 disk->bus = addr.PathId;
899 }
900 /* We do not set error in this case, because we still have enough
901 * information about volume. */
902 }
903
904 err_close:
905 CloseHandle(disk_h);
906 return;
907 }
908
909 /* VSS provider works with volumes, thus there is no difference if
910 * the volume consist of spanned disks. Info about the first disk in the
911 * volume is returned for the spanned disk group (LVM) */
912 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
913 {
914 Error *local_err = NULL;
915 GuestDiskAddressList *list = NULL;
916 GuestDiskAddress *disk = NULL;
917 int i;
918 HANDLE vol_h;
919 DWORD size;
920 PVOLUME_DISK_EXTENTS extents = NULL;
921
922 /* strip final backslash */
923 char *name = g_strdup(guid);
924 if (g_str_has_suffix(name, "\\")) {
925 name[strlen(name) - 1] = 0;
926 }
927
928 g_debug("opening %s", name);
929 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
930 0, NULL);
931 if (vol_h == INVALID_HANDLE_VALUE) {
932 error_setg_win32(errp, GetLastError(), "failed to open volume");
933 goto out;
934 }
935
936 /* Get list of extents */
937 g_debug("getting disk extents");
938 size = sizeof(VOLUME_DISK_EXTENTS);
939 extents = g_malloc0(size);
940 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
941 0, extents, size, &size, NULL)) {
942 DWORD last_err = GetLastError();
943 if (last_err == ERROR_MORE_DATA) {
944 /* Try once more with big enough buffer */
945 g_free(extents);
946 extents = g_malloc0(size);
947 if (!DeviceIoControl(
948 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
949 0, extents, size, NULL, NULL)) {
950 error_setg_win32(errp, GetLastError(),
951 "failed to get disk extents");
952 goto out;
953 }
954 } else if (last_err == ERROR_INVALID_FUNCTION) {
955 /* Possibly CD-ROM or a shared drive. Try to pass the volume */
956 g_debug("volume not on disk");
957 disk = g_new0(GuestDiskAddress, 1);
958 disk->dev = g_strdup(name);
959 get_single_disk_info(0xffffffff, disk, &local_err);
960 if (local_err) {
961 g_debug("failed to get disk info, ignoring error: %s",
962 error_get_pretty(local_err));
963 error_free(local_err);
964 goto out;
965 }
966 QAPI_LIST_PREPEND(list, disk);
967 disk = NULL;
968 goto out;
969 } else {
970 error_setg_win32(errp, GetLastError(),
971 "failed to get disk extents");
972 goto out;
973 }
974 }
975 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
976
977 /* Go through each extent */
978 for (i = 0; i < extents->NumberOfDiskExtents; i++) {
979 disk = g_new0(GuestDiskAddress, 1);
980
981 /* Disk numbers directly correspond to numbers used in UNCs
982 *
983 * See documentation for DISK_EXTENT:
984 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
985 *
986 * See also Naming Files, Paths and Namespaces:
987 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
988 */
989 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
990 extents->Extents[i].DiskNumber);
991
992 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
993 if (local_err) {
994 error_propagate(errp, local_err);
995 goto out;
996 }
997 QAPI_LIST_PREPEND(list, disk);
998 disk = NULL;
999 }
1000
1001
1002 out:
1003 if (vol_h != INVALID_HANDLE_VALUE) {
1004 CloseHandle(vol_h);
1005 }
1006 qapi_free_GuestDiskAddress(disk);
1007 g_free(extents);
1008 g_free(name);
1009
1010 return list;
1011 }
1012
1013 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
1014 {
1015 GuestDiskInfoList *ret = NULL;
1016 HDEVINFO dev_info;
1017 SP_DEVICE_INTERFACE_DATA dev_iface_data;
1018 int i;
1019
1020 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
1021 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
1022 if (dev_info == INVALID_HANDLE_VALUE) {
1023 error_setg_win32(errp, GetLastError(), "failed to get device tree");
1024 return NULL;
1025 }
1026
1027 g_debug("enumerating devices");
1028 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
1029 for (i = 0;
1030 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
1031 i, &dev_iface_data);
1032 i++) {
1033 GuestDiskAddress *address = NULL;
1034 GuestDiskInfo *disk = NULL;
1035 Error *local_err = NULL;
1036 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1037 pdev_iface_detail_data = NULL;
1038 STORAGE_DEVICE_NUMBER sdn;
1039 HANDLE dev_file;
1040 DWORD size = 0;
1041 BOOL result;
1042 int attempt;
1043
1044 g_debug(" getting device path");
1045 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1046 result = SetupDiGetDeviceInterfaceDetail(dev_info,
1047 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1048 if (result) {
1049 break;
1050 }
1051 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1052 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1053 size);
1054 pdev_iface_detail_data->cbSize =
1055 sizeof(*pdev_iface_detail_data);
1056 } else {
1057 g_debug("failed to get device interface details");
1058 break;
1059 }
1060 }
1061 if (!result) {
1062 g_debug("skipping device");
1063 continue;
1064 }
1065
1066 g_debug(" device: %s", pdev_iface_detail_data->DevicePath);
1067 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1068 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1069 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1070 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1071 CloseHandle(dev_file);
1072 debug_error("failed to get storage device number");
1073 continue;
1074 }
1075 CloseHandle(dev_file);
1076
1077 disk = g_new0(GuestDiskInfo, 1);
1078 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1079 sdn.DeviceNumber);
1080
1081 g_debug(" number: %lu", sdn.DeviceNumber);
1082 address = g_new0(GuestDiskAddress, 1);
1083 address->dev = g_strdup(disk->name);
1084 get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1085 if (local_err) {
1086 g_debug("failed to get disk info: %s",
1087 error_get_pretty(local_err));
1088 error_free(local_err);
1089 qapi_free_GuestDiskAddress(address);
1090 address = NULL;
1091 } else {
1092 disk->address = address;
1093 }
1094
1095 QAPI_LIST_PREPEND(ret, disk);
1096 }
1097
1098 SetupDiDestroyDeviceInfoList(dev_info);
1099 return ret;
1100 }
1101
1102 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
1103 {
1104 DWORD info_size;
1105 char mnt, *mnt_point;
1106 wchar_t wfs_name[32];
1107 char fs_name[32];
1108 wchar_t vol_info[MAX_PATH + 1];
1109 size_t len;
1110 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1111 GuestFilesystemInfo *fs = NULL;
1112 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1113
1114 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1115 if (GetLastError() != ERROR_MORE_DATA) {
1116 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1117 return NULL;
1118 }
1119
1120 mnt_point = g_malloc(info_size + 1);
1121 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1122 &info_size)) {
1123 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1124 goto free;
1125 }
1126
1127 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1128 FILE_ATTRIBUTE_NORMAL |
1129 FILE_FLAG_BACKUP_SEMANTICS, NULL);
1130 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1131 error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1132 goto free;
1133 }
1134
1135 len = strlen(mnt_point);
1136 mnt_point[len] = '\\';
1137 mnt_point[len + 1] = 0;
1138
1139 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1140 sizeof(vol_info), NULL, NULL, NULL,
1141 (LPWSTR) & wfs_name, sizeof(wfs_name))) {
1142 if (GetLastError() != ERROR_NOT_READY) {
1143 error_setg_win32(errp, GetLastError(), "failed to get volume info");
1144 }
1145 goto free;
1146 }
1147
1148 fs = g_malloc(sizeof(*fs));
1149 fs->name = g_strdup(guid);
1150 fs->has_total_bytes = false;
1151 fs->has_used_bytes = false;
1152 if (len == 0) {
1153 fs->mountpoint = g_strdup("System Reserved");
1154 } else {
1155 fs->mountpoint = g_strndup(mnt_point, len);
1156 if (GetDiskFreeSpaceEx(fs->mountpoint,
1157 (PULARGE_INTEGER) & i64FreeBytesToCaller,
1158 (PULARGE_INTEGER) & i64TotalBytes,
1159 (PULARGE_INTEGER) & i64FreeBytes)) {
1160 fs->used_bytes = i64TotalBytes - i64FreeBytes;
1161 fs->total_bytes = i64TotalBytes;
1162 fs->has_total_bytes = true;
1163 fs->has_used_bytes = true;
1164 }
1165 }
1166 wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1167 fs->type = g_strdup(fs_name);
1168 fs->disk = build_guest_disk_info(guid, errp);
1169 free:
1170 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1171 CloseHandle(hLocalDiskHandle);
1172 }
1173 g_free(mnt_point);
1174 return fs;
1175 }
1176
1177 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1178 {
1179 HANDLE vol_h;
1180 GuestFilesystemInfoList *ret = NULL;
1181 char guid[256];
1182
1183 vol_h = FindFirstVolume(guid, sizeof(guid));
1184 if (vol_h == INVALID_HANDLE_VALUE) {
1185 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1186 return NULL;
1187 }
1188
1189 do {
1190 Error *local_err = NULL;
1191 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1192 if (local_err) {
1193 g_debug("failed to get filesystem info, ignoring error: %s",
1194 error_get_pretty(local_err));
1195 error_free(local_err);
1196 continue;
1197 }
1198 QAPI_LIST_PREPEND(ret, info);
1199 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1200
1201 if (GetLastError() != ERROR_NO_MORE_FILES) {
1202 error_setg_win32(errp, GetLastError(), "failed to find next volume");
1203 }
1204
1205 FindVolumeClose(vol_h);
1206 return ret;
1207 }
1208
1209 /*
1210 * Return status of freeze/thaw
1211 */
1212 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1213 {
1214 if (!vss_initialized()) {
1215 error_setg(errp, QERR_UNSUPPORTED);
1216 return 0;
1217 }
1218
1219 if (ga_is_frozen(ga_state)) {
1220 return GUEST_FSFREEZE_STATUS_FROZEN;
1221 }
1222
1223 return GUEST_FSFREEZE_STATUS_THAWED;
1224 }
1225
1226 /*
1227 * Freeze local file systems using Volume Shadow-copy Service.
1228 * The frozen state is limited for up to 10 seconds by VSS.
1229 */
1230 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1231 {
1232 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1233 }
1234
1235 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1236 strList *mountpoints,
1237 Error **errp)
1238 {
1239 int i;
1240 Error *local_err = NULL;
1241
1242 if (!vss_initialized()) {
1243 error_setg(errp, QERR_UNSUPPORTED);
1244 return 0;
1245 }
1246
1247 slog("guest-fsfreeze called");
1248
1249 /* cannot risk guest agent blocking itself on a write in this state */
1250 ga_set_frozen(ga_state);
1251
1252 qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1253 if (local_err) {
1254 error_propagate(errp, local_err);
1255 goto error;
1256 }
1257
1258 return i;
1259
1260 error:
1261 local_err = NULL;
1262 qmp_guest_fsfreeze_thaw(&local_err);
1263 if (local_err) {
1264 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1265 error_free(local_err);
1266 }
1267 return 0;
1268 }
1269
1270 /*
1271 * Thaw local file systems using Volume Shadow-copy Service.
1272 */
1273 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1274 {
1275 int i;
1276
1277 if (!vss_initialized()) {
1278 error_setg(errp, QERR_UNSUPPORTED);
1279 return 0;
1280 }
1281
1282 qga_vss_fsfreeze(&i, false, NULL, errp);
1283
1284 ga_unset_frozen(ga_state);
1285 return i;
1286 }
1287
1288 static void guest_fsfreeze_cleanup(void)
1289 {
1290 Error *err = NULL;
1291
1292 if (!vss_initialized()) {
1293 return;
1294 }
1295
1296 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1297 qmp_guest_fsfreeze_thaw(&err);
1298 if (err) {
1299 slog("failed to clean up frozen filesystems: %s",
1300 error_get_pretty(err));
1301 error_free(err);
1302 }
1303 }
1304
1305 vss_deinit(true);
1306 }
1307
1308 /*
1309 * Walk list of mounted file systems in the guest, and discard unused
1310 * areas.
1311 */
1312 GuestFilesystemTrimResponse *
1313 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1314 {
1315 GuestFilesystemTrimResponse *resp;
1316 HANDLE handle;
1317 WCHAR guid[MAX_PATH] = L"";
1318 OSVERSIONINFO osvi;
1319 BOOL win8_or_later;
1320
1321 ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1322 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1323 GetVersionEx(&osvi);
1324 win8_or_later = (osvi.dwMajorVersion > 6 ||
1325 ((osvi.dwMajorVersion == 6) &&
1326 (osvi.dwMinorVersion >= 2)));
1327 if (!win8_or_later) {
1328 error_setg(errp, "fstrim is only supported for Win8+");
1329 return NULL;
1330 }
1331
1332 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1333 if (handle == INVALID_HANDLE_VALUE) {
1334 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1335 return NULL;
1336 }
1337
1338 resp = g_new0(GuestFilesystemTrimResponse, 1);
1339
1340 do {
1341 GuestFilesystemTrimResult *res;
1342 PWCHAR uc_path;
1343 DWORD char_count = 0;
1344 char *path, *out;
1345 GError *gerr = NULL;
1346 gchar *argv[4];
1347
1348 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1349
1350 if (GetLastError() != ERROR_MORE_DATA) {
1351 continue;
1352 }
1353 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1354 continue;
1355 }
1356
1357 uc_path = g_new(WCHAR, char_count);
1358 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1359 &char_count) || !*uc_path) {
1360 /* strange, but this condition could be faced even with size == 2 */
1361 g_free(uc_path);
1362 continue;
1363 }
1364
1365 res = g_new0(GuestFilesystemTrimResult, 1);
1366
1367 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1368
1369 g_free(uc_path);
1370
1371 if (!path) {
1372 res->error = g_strdup(gerr->message);
1373 g_error_free(gerr);
1374 break;
1375 }
1376
1377 res->path = path;
1378
1379 QAPI_LIST_PREPEND(resp->paths, res);
1380
1381 memset(argv, 0, sizeof(argv));
1382 argv[0] = (gchar *)"defrag.exe";
1383 argv[1] = (gchar *)"/L";
1384 argv[2] = path;
1385
1386 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1387 &out /* stdout */, NULL /* stdin */,
1388 NULL, &gerr)) {
1389 res->error = g_strdup(gerr->message);
1390 g_error_free(gerr);
1391 } else {
1392 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1393 Error is reported in the output with something like
1394 (x89000020) etc code in the stdout */
1395
1396 int i;
1397 gchar **lines = g_strsplit(out, "\r\n", 0);
1398 g_free(out);
1399
1400 for (i = 0; lines[i] != NULL; i++) {
1401 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1402 continue;
1403 }
1404 res->error = g_strdup(lines[i]);
1405 break;
1406 }
1407 g_strfreev(lines);
1408 }
1409 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1410
1411 FindVolumeClose(handle);
1412 return resp;
1413 }
1414
1415 typedef enum {
1416 GUEST_SUSPEND_MODE_DISK,
1417 GUEST_SUSPEND_MODE_RAM
1418 } GuestSuspendMode;
1419
1420 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1421 {
1422 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1423
1424 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1425 if (!GetPwrCapabilities(&sys_pwr_caps)) {
1426 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1427 "failed to determine guest suspend capabilities");
1428 return;
1429 }
1430
1431 switch (mode) {
1432 case GUEST_SUSPEND_MODE_DISK:
1433 if (!sys_pwr_caps.SystemS4) {
1434 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1435 "suspend-to-disk not supported by OS");
1436 }
1437 break;
1438 case GUEST_SUSPEND_MODE_RAM:
1439 if (!sys_pwr_caps.SystemS3) {
1440 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1441 "suspend-to-ram not supported by OS");
1442 }
1443 break;
1444 default:
1445 abort();
1446 }
1447 }
1448
1449 static DWORD WINAPI do_suspend(LPVOID opaque)
1450 {
1451 GuestSuspendMode *mode = opaque;
1452 DWORD ret = 0;
1453
1454 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1455 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1456 slog("failed to suspend guest: %s", emsg);
1457 ret = -1;
1458 }
1459 g_free(mode);
1460 return ret;
1461 }
1462
1463 void qmp_guest_suspend_disk(Error **errp)
1464 {
1465 Error *local_err = NULL;
1466 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1467
1468 *mode = GUEST_SUSPEND_MODE_DISK;
1469 check_suspend_mode(*mode, &local_err);
1470 if (local_err) {
1471 goto out;
1472 }
1473 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1474 if (local_err) {
1475 goto out;
1476 }
1477 execute_async(do_suspend, mode, &local_err);
1478
1479 out:
1480 if (local_err) {
1481 error_propagate(errp, local_err);
1482 g_free(mode);
1483 }
1484 }
1485
1486 void qmp_guest_suspend_ram(Error **errp)
1487 {
1488 Error *local_err = NULL;
1489 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1490
1491 *mode = GUEST_SUSPEND_MODE_RAM;
1492 check_suspend_mode(*mode, &local_err);
1493 if (local_err) {
1494 goto out;
1495 }
1496 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1497 if (local_err) {
1498 goto out;
1499 }
1500 execute_async(do_suspend, mode, &local_err);
1501
1502 out:
1503 if (local_err) {
1504 error_propagate(errp, local_err);
1505 g_free(mode);
1506 }
1507 }
1508
1509 void qmp_guest_suspend_hybrid(Error **errp)
1510 {
1511 error_setg(errp, QERR_UNSUPPORTED);
1512 }
1513
1514 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1515 {
1516 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1517 ULONG adptr_addrs_len = 0;
1518 DWORD ret;
1519
1520 /* Call the first time to get the adptr_addrs_len. */
1521 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1522 NULL, adptr_addrs, &adptr_addrs_len);
1523
1524 adptr_addrs = g_malloc(adptr_addrs_len);
1525 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1526 NULL, adptr_addrs, &adptr_addrs_len);
1527 if (ret != ERROR_SUCCESS) {
1528 error_setg_win32(errp, ret, "failed to get adapters addresses");
1529 g_free(adptr_addrs);
1530 adptr_addrs = NULL;
1531 }
1532 return adptr_addrs;
1533 }
1534
1535 static char *guest_wctomb_dup(WCHAR *wstr)
1536 {
1537 char *str;
1538 size_t str_size;
1539
1540 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1541 /* add 1 to str_size for NULL terminator */
1542 str = g_malloc(str_size + 1);
1543 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1544 return str;
1545 }
1546
1547 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1548 Error **errp)
1549 {
1550 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1551 DWORD len;
1552 int ret;
1553
1554 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1555 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1556 len = sizeof(addr_str);
1557 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1558 ip_addr->Address.iSockaddrLength,
1559 NULL,
1560 addr_str,
1561 &len);
1562 if (ret != 0) {
1563 error_setg_win32(errp, WSAGetLastError(),
1564 "failed address presentation form conversion");
1565 return NULL;
1566 }
1567 return g_strdup(addr_str);
1568 }
1569 return NULL;
1570 }
1571
1572 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1573 {
1574 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1575 * field to obtain the prefix.
1576 */
1577 return ip_addr->OnLinkPrefixLength;
1578 }
1579
1580 #define INTERFACE_PATH_BUF_SZ 512
1581
1582 static DWORD get_interface_index(const char *guid)
1583 {
1584 ULONG index;
1585 DWORD status;
1586 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1587 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1588 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1589 status = GetAdapterIndex (wbuf, &index);
1590 if (status != NO_ERROR) {
1591 return (DWORD)~0;
1592 } else {
1593 return index;
1594 }
1595 }
1596
1597 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1598
1599 static int guest_get_network_stats(const char *name,
1600 GuestNetworkInterfaceStat *stats)
1601 {
1602 OSVERSIONINFO os_ver;
1603
1604 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1605 GetVersionEx(&os_ver);
1606 if (os_ver.dwMajorVersion >= 6) {
1607 MIB_IF_ROW2 a_mid_ifrow;
1608 GetIfEntry2Func getifentry2_ex;
1609 DWORD if_index = 0;
1610 HMODULE module = GetModuleHandle("iphlpapi");
1611 PVOID func = GetProcAddress(module, "GetIfEntry2");
1612
1613 if (func == NULL) {
1614 return -1;
1615 }
1616
1617 getifentry2_ex = (GetIfEntry2Func)func;
1618 if_index = get_interface_index(name);
1619 if (if_index == (DWORD)~0) {
1620 return -1;
1621 }
1622
1623 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1624 a_mid_ifrow.InterfaceIndex = if_index;
1625 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1626 stats->rx_bytes = a_mid_ifrow.InOctets;
1627 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1628 stats->rx_errs = a_mid_ifrow.InErrors;
1629 stats->rx_dropped = a_mid_ifrow.InDiscards;
1630 stats->tx_bytes = a_mid_ifrow.OutOctets;
1631 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1632 stats->tx_errs = a_mid_ifrow.OutErrors;
1633 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1634 return 0;
1635 }
1636 }
1637 return -1;
1638 }
1639
1640 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1641 {
1642 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1643 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1644 GuestNetworkInterfaceList *head = NULL, **tail = &head;
1645 GuestIpAddressList *head_addr, **tail_addr;
1646 GuestNetworkInterface *info;
1647 GuestNetworkInterfaceStat *interface_stat = NULL;
1648 GuestIpAddress *address_item = NULL;
1649 unsigned char *mac_addr;
1650 char *addr_str;
1651 WORD wsa_version;
1652 WSADATA wsa_data;
1653 int ret;
1654
1655 adptr_addrs = guest_get_adapters_addresses(errp);
1656 if (adptr_addrs == NULL) {
1657 return NULL;
1658 }
1659
1660 /* Make WSA APIs available. */
1661 wsa_version = MAKEWORD(2, 2);
1662 ret = WSAStartup(wsa_version, &wsa_data);
1663 if (ret != 0) {
1664 error_setg_win32(errp, ret, "failed socket startup");
1665 goto out;
1666 }
1667
1668 for (addr = adptr_addrs; addr; addr = addr->Next) {
1669 info = g_malloc0(sizeof(*info));
1670
1671 QAPI_LIST_APPEND(tail, info);
1672
1673 info->name = guest_wctomb_dup(addr->FriendlyName);
1674
1675 if (addr->PhysicalAddressLength != 0) {
1676 mac_addr = addr->PhysicalAddress;
1677
1678 info->hardware_address =
1679 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1680 (int) mac_addr[0], (int) mac_addr[1],
1681 (int) mac_addr[2], (int) mac_addr[3],
1682 (int) mac_addr[4], (int) mac_addr[5]);
1683 }
1684
1685 head_addr = NULL;
1686 tail_addr = &head_addr;
1687 for (ip_addr = addr->FirstUnicastAddress;
1688 ip_addr;
1689 ip_addr = ip_addr->Next) {
1690 addr_str = guest_addr_to_str(ip_addr, errp);
1691 if (addr_str == NULL) {
1692 continue;
1693 }
1694
1695 address_item = g_malloc0(sizeof(*address_item));
1696
1697 QAPI_LIST_APPEND(tail_addr, address_item);
1698
1699 address_item->ip_address = addr_str;
1700 address_item->prefix = guest_ip_prefix(ip_addr);
1701 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1702 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1703 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1704 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1705 }
1706 }
1707 if (head_addr) {
1708 info->has_ip_addresses = true;
1709 info->ip_addresses = head_addr;
1710 }
1711 if (!info->statistics) {
1712 interface_stat = g_malloc0(sizeof(*interface_stat));
1713 if (guest_get_network_stats(addr->AdapterName, interface_stat)
1714 == -1) {
1715 g_free(interface_stat);
1716 } else {
1717 info->statistics = interface_stat;
1718 }
1719 }
1720 }
1721 WSACleanup();
1722 out:
1723 g_free(adptr_addrs);
1724 return head;
1725 }
1726
1727 static int64_t filetime_to_ns(const FILETIME *tf)
1728 {
1729 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime)
1730 - W32_FT_OFFSET) * 100;
1731 }
1732
1733 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1734 {
1735 Error *local_err = NULL;
1736 SYSTEMTIME ts;
1737 FILETIME tf;
1738 LONGLONG time;
1739
1740 if (!has_time) {
1741 /* Unfortunately, Windows libraries don't provide an easy way to access
1742 * RTC yet:
1743 *
1744 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1745 *
1746 * Instead, a workaround is to use the Windows win32tm command to
1747 * resync the time using the Windows Time service.
1748 */
1749 LPVOID msg_buffer;
1750 DWORD ret_flags;
1751
1752 HRESULT hr = system("w32tm /resync /nowait");
1753
1754 if (GetLastError() != 0) {
1755 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1756 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1757 } else if (hr != 0) {
1758 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1759 error_setg(errp, "Windows Time service not running on the "
1760 "guest");
1761 } else {
1762 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1763 FORMAT_MESSAGE_FROM_SYSTEM |
1764 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1765 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1766 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1767 NULL)) {
1768 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1769 "t retrieve error message", hr);
1770 } else {
1771 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1772 (LPCTSTR)msg_buffer);
1773 LocalFree(msg_buffer);
1774 }
1775 }
1776 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1777 error_setg(errp, "No internet connection on guest, sync not "
1778 "accurate");
1779 }
1780 return;
1781 }
1782
1783 /* Validate time passed by user. */
1784 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1785 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1786 return;
1787 }
1788
1789 time = time_ns / 100 + W32_FT_OFFSET;
1790
1791 tf.dwLowDateTime = (DWORD) time;
1792 tf.dwHighDateTime = (DWORD) (time >> 32);
1793
1794 if (!FileTimeToSystemTime(&tf, &ts)) {
1795 error_setg(errp, "Failed to convert system time %d",
1796 (int)GetLastError());
1797 return;
1798 }
1799
1800 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1801 if (local_err) {
1802 error_propagate(errp, local_err);
1803 return;
1804 }
1805
1806 if (!SetSystemTime(&ts)) {
1807 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1808 return;
1809 }
1810 }
1811
1812 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1813 {
1814 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1815 DWORD length;
1816 GuestLogicalProcessorList *head, **tail;
1817 Error *local_err = NULL;
1818 int64_t current;
1819
1820 ptr = pslpi = NULL;
1821 length = 0;
1822 current = 0;
1823 head = NULL;
1824 tail = &head;
1825
1826 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1827 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1828 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1829 ptr = pslpi = g_malloc0(length);
1830 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1831 error_setg(&local_err, "Failed to get processor information: %d",
1832 (int)GetLastError());
1833 }
1834 } else {
1835 error_setg(&local_err,
1836 "Failed to get processor information buffer length: %d",
1837 (int)GetLastError());
1838 }
1839
1840 while ((local_err == NULL) && (length > 0)) {
1841 if (pslpi->Relationship == RelationProcessorCore) {
1842 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1843
1844 while (cpu_bits > 0) {
1845 if (!!(cpu_bits & 1)) {
1846 GuestLogicalProcessor *vcpu;
1847
1848 vcpu = g_malloc0(sizeof *vcpu);
1849 vcpu->logical_id = current++;
1850 vcpu->online = true;
1851 vcpu->has_can_offline = true;
1852
1853 QAPI_LIST_APPEND(tail, vcpu);
1854 }
1855 cpu_bits >>= 1;
1856 }
1857 }
1858 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1859 pslpi++; /* next entry */
1860 }
1861
1862 g_free(ptr);
1863
1864 if (local_err == NULL) {
1865 if (head != NULL) {
1866 return head;
1867 }
1868 /* there's no guest with zero VCPUs */
1869 error_setg(&local_err, "Guest reported zero VCPUs");
1870 }
1871
1872 qapi_free_GuestLogicalProcessorList(head);
1873 error_propagate(errp, local_err);
1874 return NULL;
1875 }
1876
1877 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1878 {
1879 error_setg(errp, QERR_UNSUPPORTED);
1880 return -1;
1881 }
1882
1883 static gchar *
1884 get_net_error_message(gint error)
1885 {
1886 HMODULE module = NULL;
1887 gchar *retval = NULL;
1888 wchar_t *msg = NULL;
1889 int flags;
1890 size_t nchars;
1891
1892 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1893 FORMAT_MESSAGE_IGNORE_INSERTS |
1894 FORMAT_MESSAGE_FROM_SYSTEM;
1895
1896 if (error >= NERR_BASE && error <= MAX_NERR) {
1897 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1898
1899 if (module != NULL) {
1900 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1901 }
1902 }
1903
1904 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1905
1906 if (msg != NULL) {
1907 nchars = wcslen(msg);
1908
1909 if (nchars >= 2 &&
1910 msg[nchars - 1] == L'\n' &&
1911 msg[nchars - 2] == L'\r') {
1912 msg[nchars - 2] = L'\0';
1913 }
1914
1915 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1916
1917 LocalFree(msg);
1918 }
1919
1920 if (module != NULL) {
1921 FreeLibrary(module);
1922 }
1923
1924 return retval;
1925 }
1926
1927 void qmp_guest_set_user_password(const char *username,
1928 const char *password,
1929 bool crypted,
1930 Error **errp)
1931 {
1932 NET_API_STATUS nas;
1933 char *rawpasswddata = NULL;
1934 size_t rawpasswdlen;
1935 wchar_t *user = NULL, *wpass = NULL;
1936 USER_INFO_1003 pi1003 = { 0, };
1937 GError *gerr = NULL;
1938
1939 if (crypted) {
1940 error_setg(errp, QERR_UNSUPPORTED);
1941 return;
1942 }
1943
1944 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1945 if (!rawpasswddata) {
1946 return;
1947 }
1948 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1949 rawpasswddata[rawpasswdlen] = '\0';
1950
1951 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1952 if (!user) {
1953 goto done;
1954 }
1955
1956 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1957 if (!wpass) {
1958 goto done;
1959 }
1960
1961 pi1003.usri1003_password = wpass;
1962 nas = NetUserSetInfo(NULL, user,
1963 1003, (LPBYTE)&pi1003,
1964 NULL);
1965
1966 if (nas != NERR_Success) {
1967 gchar *msg = get_net_error_message(nas);
1968 error_setg(errp, "failed to set password: %s", msg);
1969 g_free(msg);
1970 }
1971
1972 done:
1973 if (gerr) {
1974 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1975 g_error_free(gerr);
1976 }
1977 g_free(user);
1978 g_free(wpass);
1979 g_free(rawpasswddata);
1980 }
1981
1982 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1983 {
1984 error_setg(errp, QERR_UNSUPPORTED);
1985 return NULL;
1986 }
1987
1988 GuestMemoryBlockResponseList *
1989 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1990 {
1991 error_setg(errp, QERR_UNSUPPORTED);
1992 return NULL;
1993 }
1994
1995 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1996 {
1997 error_setg(errp, QERR_UNSUPPORTED);
1998 return NULL;
1999 }
2000
2001 /* add unsupported commands to the list of blocked RPCs */
2002 GList *ga_command_init_blockedrpcs(GList *blockedrpcs)
2003 {
2004 const char *list_unsupported[] = {
2005 "guest-suspend-hybrid",
2006 "guest-set-vcpus",
2007 "guest-get-memory-blocks", "guest-set-memory-blocks",
2008 "guest-get-memory-block-size", "guest-get-memory-block-info",
2009 NULL};
2010 char **p = (char **)list_unsupported;
2011
2012 while (*p) {
2013 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2014 }
2015
2016 if (!vss_init(true)) {
2017 g_debug("vss_init failed, vss commands are going to be disabled");
2018 const char *list[] = {
2019 "guest-get-fsinfo", "guest-fsfreeze-status",
2020 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
2021 p = (char **)list;
2022
2023 while (*p) {
2024 blockedrpcs = g_list_append(blockedrpcs, g_strdup(*p++));
2025 }
2026 }
2027
2028 return blockedrpcs;
2029 }
2030
2031 /* register init/cleanup routines for stateful command groups */
2032 void ga_command_state_init(GAState *s, GACommandState *cs)
2033 {
2034 if (!vss_initialized()) {
2035 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
2036 }
2037 }
2038
2039 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
2040 typedef struct _GA_WTSINFOA {
2041 WTS_CONNECTSTATE_CLASS State;
2042 DWORD SessionId;
2043 DWORD IncomingBytes;
2044 DWORD OutgoingBytes;
2045 DWORD IncomingFrames;
2046 DWORD OutgoingFrames;
2047 DWORD IncomingCompressedBytes;
2048 DWORD OutgoingCompressedBy;
2049 CHAR WinStationName[WINSTATIONNAME_LENGTH];
2050 CHAR Domain[DOMAIN_LENGTH];
2051 CHAR UserName[USERNAME_LENGTH + 1];
2052 LARGE_INTEGER ConnectTime;
2053 LARGE_INTEGER DisconnectTime;
2054 LARGE_INTEGER LastInputTime;
2055 LARGE_INTEGER LogonTime;
2056 LARGE_INTEGER CurrentTime;
2057
2058 } GA_WTSINFOA;
2059
2060 GuestUserList *qmp_guest_get_users(Error **errp)
2061 {
2062 #define QGA_NANOSECONDS 10000000
2063
2064 GHashTable *cache = NULL;
2065 GuestUserList *head = NULL, **tail = &head;
2066
2067 DWORD buffer_size = 0, count = 0, i = 0;
2068 GA_WTSINFOA *info = NULL;
2069 WTS_SESSION_INFOA *entries = NULL;
2070 GuestUser *user = NULL;
2071 gpointer value = NULL;
2072 INT64 login = 0;
2073 double login_time = 0;
2074
2075 cache = g_hash_table_new(g_str_hash, g_str_equal);
2076
2077 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2078 for (i = 0; i < count; ++i) {
2079 buffer_size = 0;
2080 info = NULL;
2081 if (WTSQuerySessionInformationA(
2082 NULL,
2083 entries[i].SessionId,
2084 WTSSessionInfo,
2085 (LPSTR *)&info,
2086 &buffer_size
2087 )) {
2088
2089 if (strlen(info->UserName) == 0) {
2090 WTSFreeMemory(info);
2091 continue;
2092 }
2093
2094 login = info->LogonTime.QuadPart;
2095 login -= W32_FT_OFFSET;
2096 login_time = ((double)login) / QGA_NANOSECONDS;
2097
2098 if (g_hash_table_contains(cache, info->UserName)) {
2099 value = g_hash_table_lookup(cache, info->UserName);
2100 user = (GuestUser *)value;
2101 if (user->login_time > login_time) {
2102 user->login_time = login_time;
2103 }
2104 } else {
2105 user = g_new0(GuestUser, 1);
2106
2107 user->user = g_strdup(info->UserName);
2108 user->domain = g_strdup(info->Domain);
2109
2110 user->login_time = login_time;
2111
2112 g_hash_table_add(cache, user->user);
2113
2114 QAPI_LIST_APPEND(tail, user);
2115 }
2116 }
2117 WTSFreeMemory(info);
2118 }
2119 WTSFreeMemory(entries);
2120 }
2121 g_hash_table_destroy(cache);
2122 return head;
2123 }
2124
2125 typedef struct _ga_matrix_lookup_t {
2126 int major;
2127 int minor;
2128 char const *version;
2129 char const *version_id;
2130 } ga_matrix_lookup_t;
2131
2132 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][7] = {
2133 {
2134 /* Desktop editions */
2135 { 5, 0, "Microsoft Windows 2000", "2000"},
2136 { 5, 1, "Microsoft Windows XP", "xp"},
2137 { 6, 0, "Microsoft Windows Vista", "vista"},
2138 { 6, 1, "Microsoft Windows 7" "7"},
2139 { 6, 2, "Microsoft Windows 8", "8"},
2140 { 6, 3, "Microsoft Windows 8.1", "8.1"},
2141 { 0, 0, 0}
2142 },{
2143 /* Server editions */
2144 { 5, 2, "Microsoft Windows Server 2003", "2003"},
2145 { 6, 0, "Microsoft Windows Server 2008", "2008"},
2146 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2147 { 6, 2, "Microsoft Windows Server 2012", "2012"},
2148 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2149 { 0, 0, 0},
2150 { 0, 0, 0}
2151 }
2152 };
2153
2154 typedef struct _ga_win_10_0_t {
2155 int first_build;
2156 char const *version;
2157 char const *version_id;
2158 } ga_win_10_0_t;
2159
2160 static ga_win_10_0_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = {
2161 {14393, "Microsoft Windows Server 2016", "2016"},
2162 {17763, "Microsoft Windows Server 2019", "2019"},
2163 {20344, "Microsoft Windows Server 2022", "2022"},
2164 {0, 0}
2165 };
2166
2167 static ga_win_10_0_t const WIN_10_0_CLIENT_VERSION_MATRIX[3] = {
2168 {10240, "Microsoft Windows 10", "10"},
2169 {22000, "Microsoft Windows 11", "11"},
2170 {0, 0}
2171 };
2172
2173 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2174 {
2175 typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2176 RTL_OSVERSIONINFOEXW *os_version_info_ex);
2177
2178 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2179
2180 HMODULE module = GetModuleHandle("ntdll");
2181 PVOID fun = GetProcAddress(module, "RtlGetVersion");
2182 if (fun == NULL) {
2183 error_setg(errp, QERR_QGA_COMMAND_FAILED,
2184 "Failed to get address of RtlGetVersion");
2185 return;
2186 }
2187
2188 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2189 rtl_get_version(info);
2190 return;
2191 }
2192
2193 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
2194 {
2195 DWORD major = os_version->dwMajorVersion;
2196 DWORD minor = os_version->dwMinorVersion;
2197 DWORD build = os_version->dwBuildNumber;
2198 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2199 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
2200 ga_win_10_0_t const *win_10_0_table = tbl_idx ?
2201 WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX;
2202 ga_win_10_0_t const *win_10_0_version = NULL;
2203 while (table->version != NULL) {
2204 if (major == 10 && minor == 0) {
2205 while (win_10_0_table->version != NULL) {
2206 if (build >= win_10_0_table->first_build) {
2207 win_10_0_version = win_10_0_table;
2208 }
2209 win_10_0_table++;
2210 }
2211 if (win_10_0_table) {
2212 if (id) {
2213 return g_strdup(win_10_0_version->version_id);
2214 } else {
2215 return g_strdup(win_10_0_version->version);
2216 }
2217 }
2218 } else if (major == table->major && minor == table->minor) {
2219 if (id) {
2220 return g_strdup(table->version_id);
2221 } else {
2222 return g_strdup(table->version);
2223 }
2224 }
2225 ++table;
2226 }
2227 slog("failed to lookup Windows version: major=%lu, minor=%lu",
2228 major, minor);
2229 return g_strdup("N/A");
2230 }
2231
2232 static char *ga_get_win_product_name(Error **errp)
2233 {
2234 HKEY key = INVALID_HANDLE_VALUE;
2235 DWORD size = 128;
2236 char *result = g_malloc0(size);
2237 LONG err = ERROR_SUCCESS;
2238
2239 err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2240 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2241 &key);
2242 if (err != ERROR_SUCCESS) {
2243 error_setg_win32(errp, err, "failed to open registry key");
2244 g_free(result);
2245 return NULL;
2246 }
2247
2248 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2249 (LPBYTE)result, &size);
2250 if (err == ERROR_MORE_DATA) {
2251 slog("ProductName longer than expected (%lu bytes), retrying",
2252 size);
2253 g_free(result);
2254 result = NULL;
2255 if (size > 0) {
2256 result = g_malloc0(size);
2257 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2258 (LPBYTE)result, &size);
2259 }
2260 }
2261 if (err != ERROR_SUCCESS) {
2262 error_setg_win32(errp, err, "failed to retrive ProductName");
2263 goto fail;
2264 }
2265
2266 RegCloseKey(key);
2267 return result;
2268
2269 fail:
2270 if (key != INVALID_HANDLE_VALUE) {
2271 RegCloseKey(key);
2272 }
2273 g_free(result);
2274 return NULL;
2275 }
2276
2277 static char *ga_get_current_arch(void)
2278 {
2279 SYSTEM_INFO info;
2280 GetNativeSystemInfo(&info);
2281 char *result = NULL;
2282 switch (info.wProcessorArchitecture) {
2283 case PROCESSOR_ARCHITECTURE_AMD64:
2284 result = g_strdup("x86_64");
2285 break;
2286 case PROCESSOR_ARCHITECTURE_ARM:
2287 result = g_strdup("arm");
2288 break;
2289 case PROCESSOR_ARCHITECTURE_IA64:
2290 result = g_strdup("ia64");
2291 break;
2292 case PROCESSOR_ARCHITECTURE_INTEL:
2293 result = g_strdup("x86");
2294 break;
2295 case PROCESSOR_ARCHITECTURE_UNKNOWN:
2296 default:
2297 slog("unknown processor architecture 0x%0x",
2298 info.wProcessorArchitecture);
2299 result = g_strdup("unknown");
2300 break;
2301 }
2302 return result;
2303 }
2304
2305 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
2306 {
2307 Error *local_err = NULL;
2308 OSVERSIONINFOEXW os_version = {0};
2309 bool server;
2310 char *product_name;
2311 GuestOSInfo *info;
2312
2313 ga_get_win_version(&os_version, &local_err);
2314 if (local_err) {
2315 error_propagate(errp, local_err);
2316 return NULL;
2317 }
2318
2319 server = os_version.wProductType != VER_NT_WORKSTATION;
2320 product_name = ga_get_win_product_name(errp);
2321 if (product_name == NULL) {
2322 return NULL;
2323 }
2324
2325 info = g_new0(GuestOSInfo, 1);
2326
2327 info->kernel_version = g_strdup_printf("%lu.%lu",
2328 os_version.dwMajorVersion,
2329 os_version.dwMinorVersion);
2330 info->kernel_release = g_strdup_printf("%lu",
2331 os_version.dwBuildNumber);
2332 info->machine = ga_get_current_arch();
2333
2334 info->id = g_strdup("mswindows");
2335 info->name = g_strdup("Microsoft Windows");
2336 info->pretty_name = product_name;
2337 info->version = ga_get_win_name(&os_version, false);
2338 info->version_id = ga_get_win_name(&os_version, true);
2339 info->variant = g_strdup(server ? "server" : "client");
2340 info->variant_id = g_strdup(server ? "server" : "client");
2341
2342 return info;
2343 }
2344
2345 /*
2346 * Safely get device property. Returned strings are using wide characters.
2347 * Caller is responsible for freeing the buffer.
2348 */
2349 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2350 PDEVPROPTYPE propType)
2351 {
2352 CONFIGRET cr;
2353 g_autofree LPBYTE buffer = NULL;
2354 ULONG buffer_len = 0;
2355
2356 /* First query for needed space */
2357 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2358 buffer, &buffer_len, 0);
2359 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2360
2361 slog("failed to get property size, error=0x%lx", cr);
2362 return NULL;
2363 }
2364 buffer = g_new0(BYTE, buffer_len + 1);
2365 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2366 buffer, &buffer_len, 0);
2367 if (cr != CR_SUCCESS) {
2368 slog("failed to get device property, error=0x%lx", cr);
2369 return NULL;
2370 }
2371 return g_steal_pointer(&buffer);
2372 }
2373
2374 static GStrv ga_get_hardware_ids(DEVINST devInstance)
2375 {
2376 GArray *values = NULL;
2377 DEVPROPTYPE cm_type;
2378 LPWSTR id;
2379 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2380 &qga_DEVPKEY_Device_HardwareIds, &cm_type);
2381 if (property == NULL) {
2382 slog("failed to get hardware IDs");
2383 return NULL;
2384 }
2385 if (*property == '\0') {
2386 /* empty list */
2387 return NULL;
2388 }
2389 values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2390 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2391 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2392 g_array_append_val(values, id8);
2393 }
2394 return (GStrv)g_array_free(values, FALSE);
2395 }
2396
2397 /*
2398 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2399 */
2400 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
2401
2402 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
2403 {
2404 GuestDeviceInfoList *head = NULL, **tail = &head;
2405 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2406 SP_DEVINFO_DATA dev_info_data;
2407 int i, j;
2408 GError *gerr = NULL;
2409 g_autoptr(GRegex) device_pci_re = NULL;
2410 DEVPROPTYPE cm_type;
2411
2412 device_pci_re = g_regex_new(DEVICE_PCI_RE,
2413 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
2414 &gerr);
2415 g_assert(device_pci_re != NULL);
2416
2417 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2418 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
2419 if (dev_info == INVALID_HANDLE_VALUE) {
2420 error_setg(errp, "failed to get device tree");
2421 return NULL;
2422 }
2423
2424 slog("enumerating devices");
2425 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2426 bool skip = true;
2427 g_autofree LPWSTR name = NULL;
2428 g_autofree LPFILETIME date = NULL;
2429 g_autofree LPWSTR version = NULL;
2430 g_auto(GStrv) hw_ids = NULL;
2431 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2432 g_autofree char *vendor_id = NULL;
2433 g_autofree char *device_id = NULL;
2434
2435 name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2436 &qga_DEVPKEY_NAME, &cm_type);
2437 if (name == NULL) {
2438 slog("failed to get device description");
2439 continue;
2440 }
2441 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2442 if (device->driver_name == NULL) {
2443 error_setg(errp, "conversion to utf8 failed (driver name)");
2444 return NULL;
2445 }
2446 slog("querying device: %s", device->driver_name);
2447 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2448 if (hw_ids == NULL) {
2449 continue;
2450 }
2451 for (j = 0; hw_ids[j] != NULL; j++) {
2452 g_autoptr(GMatchInfo) match_info;
2453 GuestDeviceIdPCI *id;
2454 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2455 continue;
2456 }
2457 skip = false;
2458
2459 vendor_id = g_match_info_fetch(match_info, 1);
2460 device_id = g_match_info_fetch(match_info, 2);
2461
2462 device->id = g_new0(GuestDeviceId, 1);
2463 device->id->type = GUEST_DEVICE_TYPE_PCI;
2464 id = &device->id->u.pci;
2465 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2466 id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2467
2468 break;
2469 }
2470 if (skip) {
2471 continue;
2472 }
2473
2474 version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2475 &qga_DEVPKEY_Device_DriverVersion, &cm_type);
2476 if (version == NULL) {
2477 slog("failed to get driver version");
2478 continue;
2479 }
2480 device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2481 NULL, NULL);
2482 if (device->driver_version == NULL) {
2483 error_setg(errp, "conversion to utf8 failed (driver version)");
2484 return NULL;
2485 }
2486
2487 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2488 &qga_DEVPKEY_Device_DriverDate, &cm_type);
2489 if (date == NULL) {
2490 slog("failed to get driver date");
2491 continue;
2492 }
2493 device->driver_date = filetime_to_ns(date);
2494 device->has_driver_date = true;
2495
2496 slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2497 device->driver_name, device->driver_date,
2498 device->driver_version);
2499 QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2500 }
2501
2502 if (dev_info != INVALID_HANDLE_VALUE) {
2503 SetupDiDestroyDeviceInfoList(dev_info);
2504 }
2505 return head;
2506 }
2507
2508 char *qga_get_host_name(Error **errp)
2509 {
2510 wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
2511 DWORD size = G_N_ELEMENTS(tmp);
2512
2513 if (GetComputerNameW(tmp, &size) == 0) {
2514 error_setg_win32(errp, GetLastError(), "failed close handle");
2515 return NULL;
2516 }
2517
2518 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL);
2519 }
2520
2521 GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp)
2522 {
2523 error_setg(errp, QERR_UNSUPPORTED);
2524 return NULL;
2525 }
2526
2527 GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp)
2528 {
2529 error_setg(errp, QERR_UNSUPPORTED);
2530 return NULL;
2531 }
armbru's QEMU hackery