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qga-win: Free GMatchInfo properly
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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 #ifdef CONFIG_QGA_NTDDSCSI
22 #include <winioctl.h>
23 #include <ntddscsi.h>
24 #endif
25 #include <setupapi.h>
26 #include <cfgmgr32.h>
27 #include <initguid.h>
28 #include <devpropdef.h>
29 #include <lm.h>
30 #include <wtsapi32.h>
31 #include <wininet.h>
32
33 #include "guest-agent-core.h"
34 #include "vss-win32.h"
35 #include "qga-qapi-commands.h"
36 #include "qapi/error.h"
37 #include "qapi/qmp/qerror.h"
38 #include "qemu/queue.h"
39 #include "qemu/host-utils.h"
40 #include "qemu/base64.h"
41 #include "commands-common.h"
42
43 /*
44 * The following should be in devpkey.h, but it isn't. The key names were
45 * prefixed to avoid (future) name clashes. Once the definitions get into
46 * mingw the following lines can be removed.
47 */
48 DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5,
49 0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10);
50 /* DEVPROP_TYPE_STRING */
51 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c,
52 0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3);
53 /* DEVPROP_TYPE_STRING_LIST */
54 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d,
55 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2);
56 /* DEVPROP_TYPE_FILETIME */
57 DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d,
58 0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3);
59 /* DEVPROP_TYPE_STRING */
60 /* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */
61 #ifndef CM_Get_DevNode_Property
62 #pragma GCC diagnostic push
63 #pragma GCC diagnostic ignored "-Wredundant-decls"
64 CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
65 DEVINST dnDevInst,
66 CONST DEVPROPKEY * PropertyKey,
67 DEVPROPTYPE * PropertyType,
68 PBYTE PropertyBuffer,
69 PULONG PropertyBufferSize,
70 ULONG ulFlags
71 );
72 #define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW
73 #pragma GCC diagnostic pop
74 #endif
75
76 #ifndef SHTDN_REASON_FLAG_PLANNED
77 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
78 #endif
79
80 /* multiple of 100 nanoseconds elapsed between windows baseline
81 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
82 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
83 (365 * (1970 - 1601) + \
84 (1970 - 1601) / 4 - 3))
85
86 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
87
88 struct GuestFileHandle {
89 int64_t id;
90 HANDLE fh;
91 QTAILQ_ENTRY(GuestFileHandle) next;
92 };
93
94 static struct {
95 QTAILQ_HEAD(, GuestFileHandle) filehandles;
96 } guest_file_state = {
97 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
98 };
99
100 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
101
102 typedef struct OpenFlags {
103 const char *forms;
104 DWORD desired_access;
105 DWORD creation_disposition;
106 } OpenFlags;
107 static OpenFlags guest_file_open_modes[] = {
108 {"r", GENERIC_READ, OPEN_EXISTING},
109 {"rb", GENERIC_READ, OPEN_EXISTING},
110 {"w", GENERIC_WRITE, CREATE_ALWAYS},
111 {"wb", GENERIC_WRITE, CREATE_ALWAYS},
112 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
113 {"r+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
114 {"rb+", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
115 {"r+b", GENERIC_WRITE | GENERIC_READ, OPEN_EXISTING},
116 {"w+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
117 {"wb+", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
118 {"w+b", GENERIC_WRITE | GENERIC_READ, CREATE_ALWAYS},
119 {"a+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS },
120 {"ab+", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS },
121 {"a+b", FILE_GENERIC_APPEND | GENERIC_READ, OPEN_ALWAYS }
122 };
123
124 #define debug_error(msg) do { \
125 char *suffix = g_win32_error_message(GetLastError()); \
126 g_debug("%s: %s", (msg), suffix); \
127 g_free(suffix); \
128 } while (0)
129
130 static OpenFlags *find_open_flag(const char *mode_str)
131 {
132 int mode;
133 Error **errp = NULL;
134
135 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
136 OpenFlags *flags = guest_file_open_modes + mode;
137
138 if (strcmp(flags->forms, mode_str) == 0) {
139 return flags;
140 }
141 }
142
143 error_setg(errp, "invalid file open mode '%s'", mode_str);
144 return NULL;
145 }
146
147 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
148 {
149 GuestFileHandle *gfh;
150 int64_t handle;
151
152 handle = ga_get_fd_handle(ga_state, errp);
153 if (handle < 0) {
154 return -1;
155 }
156 gfh = g_new0(GuestFileHandle, 1);
157 gfh->id = handle;
158 gfh->fh = fh;
159 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
160
161 return handle;
162 }
163
164 GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
165 {
166 GuestFileHandle *gfh;
167 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
168 if (gfh->id == id) {
169 return gfh;
170 }
171 }
172 error_setg(errp, "handle '%" PRId64 "' has not been found", id);
173 return NULL;
174 }
175
176 static void handle_set_nonblocking(HANDLE fh)
177 {
178 DWORD file_type, pipe_state;
179 file_type = GetFileType(fh);
180 if (file_type != FILE_TYPE_PIPE) {
181 return;
182 }
183 /* If file_type == FILE_TYPE_PIPE, according to MSDN
184 * the specified file is socket or named pipe */
185 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
186 NULL, NULL, NULL, 0)) {
187 return;
188 }
189 /* The fd is named pipe fd */
190 if (pipe_state & PIPE_NOWAIT) {
191 return;
192 }
193
194 pipe_state |= PIPE_NOWAIT;
195 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
196 }
197
198 int64_t qmp_guest_file_open(const char *path, bool has_mode,
199 const char *mode, Error **errp)
200 {
201 int64_t fd = -1;
202 HANDLE fh;
203 HANDLE templ_file = NULL;
204 DWORD share_mode = FILE_SHARE_READ;
205 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
206 LPSECURITY_ATTRIBUTES sa_attr = NULL;
207 OpenFlags *guest_flags;
208 GError *gerr = NULL;
209 wchar_t *w_path = NULL;
210
211 if (!has_mode) {
212 mode = "r";
213 }
214 slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
215 guest_flags = find_open_flag(mode);
216 if (guest_flags == NULL) {
217 error_setg(errp, "invalid file open mode");
218 goto done;
219 }
220
221 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
222 if (!w_path) {
223 goto done;
224 }
225
226 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
227 guest_flags->creation_disposition, flags_and_attr,
228 templ_file);
229 if (fh == INVALID_HANDLE_VALUE) {
230 error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
231 path);
232 goto done;
233 }
234
235 /* set fd non-blocking to avoid common use cases (like reading from a
236 * named pipe) from hanging the agent
237 */
238 handle_set_nonblocking(fh);
239
240 fd = guest_file_handle_add(fh, errp);
241 if (fd < 0) {
242 CloseHandle(fh);
243 error_setg(errp, "failed to add handle to qmp handle table");
244 goto done;
245 }
246
247 slog("guest-file-open, handle: % " PRId64, fd);
248
249 done:
250 if (gerr) {
251 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
252 g_error_free(gerr);
253 }
254 g_free(w_path);
255 return fd;
256 }
257
258 void qmp_guest_file_close(int64_t handle, Error **errp)
259 {
260 bool ret;
261 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
262 slog("guest-file-close called, handle: %" PRId64, handle);
263 if (gfh == NULL) {
264 return;
265 }
266 ret = CloseHandle(gfh->fh);
267 if (!ret) {
268 error_setg_win32(errp, GetLastError(), "failed close handle");
269 return;
270 }
271
272 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
273 g_free(gfh);
274 }
275
276 static void acquire_privilege(const char *name, Error **errp)
277 {
278 HANDLE token = NULL;
279 TOKEN_PRIVILEGES priv;
280 Error *local_err = NULL;
281
282 if (OpenProcessToken(GetCurrentProcess(),
283 TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &token))
284 {
285 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
286 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
287 "no luid for requested privilege");
288 goto out;
289 }
290
291 priv.PrivilegeCount = 1;
292 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
293
294 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
295 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
296 "unable to acquire requested privilege");
297 goto out;
298 }
299
300 } else {
301 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
302 "failed to open privilege token");
303 }
304
305 out:
306 if (token) {
307 CloseHandle(token);
308 }
309 error_propagate(errp, local_err);
310 }
311
312 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
313 Error **errp)
314 {
315 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
316 if (!thread) {
317 error_setg(errp, QERR_QGA_COMMAND_FAILED,
318 "failed to dispatch asynchronous command");
319 }
320 }
321
322 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
323 {
324 Error *local_err = NULL;
325 UINT shutdown_flag = EWX_FORCE;
326
327 slog("guest-shutdown called, mode: %s", mode);
328
329 if (!has_mode || strcmp(mode, "powerdown") == 0) {
330 shutdown_flag |= EWX_POWEROFF;
331 } else if (strcmp(mode, "halt") == 0) {
332 shutdown_flag |= EWX_SHUTDOWN;
333 } else if (strcmp(mode, "reboot") == 0) {
334 shutdown_flag |= EWX_REBOOT;
335 } else {
336 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
337 "'halt', 'powerdown', or 'reboot'");
338 return;
339 }
340
341 /* Request a shutdown privilege, but try to shut down the system
342 anyway. */
343 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
344 if (local_err) {
345 error_propagate(errp, local_err);
346 return;
347 }
348
349 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
350 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
351 slog("guest-shutdown failed: %s", emsg);
352 error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
353 }
354 }
355
356 GuestFileRead *guest_file_read_unsafe(GuestFileHandle *gfh,
357 int64_t count, Error **errp)
358 {
359 GuestFileRead *read_data = NULL;
360 guchar *buf;
361 HANDLE fh = gfh->fh;
362 bool is_ok;
363 DWORD read_count;
364
365 buf = g_malloc0(count + 1);
366 is_ok = ReadFile(fh, buf, count, &read_count, NULL);
367 if (!is_ok) {
368 error_setg_win32(errp, GetLastError(), "failed to read file");
369 } else {
370 buf[read_count] = 0;
371 read_data = g_new0(GuestFileRead, 1);
372 read_data->count = (size_t)read_count;
373 read_data->eof = read_count == 0;
374
375 if (read_count != 0) {
376 read_data->buf_b64 = g_base64_encode(buf, read_count);
377 }
378 }
379 g_free(buf);
380
381 return read_data;
382 }
383
384 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
385 bool has_count, int64_t count,
386 Error **errp)
387 {
388 GuestFileWrite *write_data = NULL;
389 guchar *buf;
390 gsize buf_len;
391 bool is_ok;
392 DWORD write_count;
393 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
394 HANDLE fh;
395
396 if (!gfh) {
397 return NULL;
398 }
399 fh = gfh->fh;
400 buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
401 if (!buf) {
402 return NULL;
403 }
404
405 if (!has_count) {
406 count = buf_len;
407 } else if (count < 0 || count > buf_len) {
408 error_setg(errp, "value '%" PRId64
409 "' is invalid for argument count", count);
410 goto done;
411 }
412
413 is_ok = WriteFile(fh, buf, count, &write_count, NULL);
414 if (!is_ok) {
415 error_setg_win32(errp, GetLastError(), "failed to write to file");
416 slog("guest-file-write-failed, handle: %" PRId64, handle);
417 } else {
418 write_data = g_new0(GuestFileWrite, 1);
419 write_data->count = (size_t) write_count;
420 }
421
422 done:
423 g_free(buf);
424 return write_data;
425 }
426
427 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
428 GuestFileWhence *whence_code,
429 Error **errp)
430 {
431 GuestFileHandle *gfh;
432 GuestFileSeek *seek_data;
433 HANDLE fh;
434 LARGE_INTEGER new_pos, off_pos;
435 off_pos.QuadPart = offset;
436 BOOL res;
437 int whence;
438 Error *err = NULL;
439
440 gfh = guest_file_handle_find(handle, errp);
441 if (!gfh) {
442 return NULL;
443 }
444
445 /* We stupidly exposed 'whence':'int' in our qapi */
446 whence = ga_parse_whence(whence_code, &err);
447 if (err) {
448 error_propagate(errp, err);
449 return NULL;
450 }
451
452 fh = gfh->fh;
453 res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
454 if (!res) {
455 error_setg_win32(errp, GetLastError(), "failed to seek file");
456 return NULL;
457 }
458 seek_data = g_new0(GuestFileSeek, 1);
459 seek_data->position = new_pos.QuadPart;
460 return seek_data;
461 }
462
463 void qmp_guest_file_flush(int64_t handle, Error **errp)
464 {
465 HANDLE fh;
466 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
467 if (!gfh) {
468 return;
469 }
470
471 fh = gfh->fh;
472 if (!FlushFileBuffers(fh)) {
473 error_setg_win32(errp, GetLastError(), "failed to flush file");
474 }
475 }
476
477 #ifdef CONFIG_QGA_NTDDSCSI
478
479 static GuestDiskBusType win2qemu[] = {
480 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
481 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
482 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
483 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
484 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
485 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
486 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
487 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
488 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
489 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
490 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
491 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
492 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
493 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
494 #if (_WIN32_WINNT >= 0x0601)
495 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
496 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
497 #endif
498 };
499
500 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
501 {
502 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
503 return GUEST_DISK_BUS_TYPE_UNKNOWN;
504 }
505 return win2qemu[(int)bus];
506 }
507
508 DEFINE_GUID(GUID_DEVINTERFACE_DISK,
509 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2,
510 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
511 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT,
512 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82,
513 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
514
515 static GuestPCIAddress *get_pci_info(int number, Error **errp)
516 {
517 HDEVINFO dev_info;
518 SP_DEVINFO_DATA dev_info_data;
519 SP_DEVICE_INTERFACE_DATA dev_iface_data;
520 HANDLE dev_file;
521 int i;
522 GuestPCIAddress *pci = NULL;
523 bool partial_pci = false;
524
525 pci = g_malloc0(sizeof(*pci));
526 pci->domain = -1;
527 pci->slot = -1;
528 pci->function = -1;
529 pci->bus = -1;
530
531 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
532 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
533 if (dev_info == INVALID_HANDLE_VALUE) {
534 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
535 goto out;
536 }
537
538 g_debug("enumerating devices");
539 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
540 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
541 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
542 PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
543 STORAGE_DEVICE_NUMBER sdn;
544 char *parent_dev_id = NULL;
545 HDEVINFO parent_dev_info;
546 SP_DEVINFO_DATA parent_dev_info_data;
547 DWORD j;
548 DWORD size = 0;
549
550 g_debug("getting device path");
551 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
552 &GUID_DEVINTERFACE_DISK, 0,
553 &dev_iface_data)) {
554 while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
555 pdev_iface_detail_data,
556 size, &size,
557 &dev_info_data)) {
558 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
559 pdev_iface_detail_data = g_malloc(size);
560 pdev_iface_detail_data->cbSize =
561 sizeof(*pdev_iface_detail_data);
562 } else {
563 error_setg_win32(errp, GetLastError(),
564 "failed to get device interfaces");
565 goto free_dev_info;
566 }
567 }
568
569 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
570 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
571 NULL);
572 g_free(pdev_iface_detail_data);
573
574 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
575 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
576 CloseHandle(dev_file);
577 error_setg_win32(errp, GetLastError(),
578 "failed to get device slot number");
579 goto free_dev_info;
580 }
581
582 CloseHandle(dev_file);
583 if (sdn.DeviceNumber != number) {
584 continue;
585 }
586 } else {
587 error_setg_win32(errp, GetLastError(),
588 "failed to get device interfaces");
589 goto free_dev_info;
590 }
591
592 g_debug("found device slot %d. Getting storage controller", number);
593 {
594 CONFIGRET cr;
595 DEVINST dev_inst, parent_dev_inst;
596 ULONG dev_id_size = 0;
597
598 size = 0;
599 while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
600 parent_dev_id, size, &size)) {
601 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
602 parent_dev_id = g_malloc(size);
603 } else {
604 error_setg_win32(errp, GetLastError(),
605 "failed to get device instance ID");
606 goto out;
607 }
608 }
609
610 /*
611 * CM API used here as opposed to
612 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
613 * which exports are only available in mingw-w64 6+
614 */
615 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
616 if (cr != CR_SUCCESS) {
617 g_error("CM_Locate_DevInst failed with code %lx", cr);
618 error_setg_win32(errp, GetLastError(),
619 "failed to get device instance");
620 goto out;
621 }
622 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
623 if (cr != CR_SUCCESS) {
624 g_error("CM_Get_Parent failed with code %lx", cr);
625 error_setg_win32(errp, GetLastError(),
626 "failed to get parent device instance");
627 goto out;
628 }
629
630 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
631 if (cr != CR_SUCCESS) {
632 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
633 error_setg_win32(errp, GetLastError(),
634 "failed to get parent device ID length");
635 goto out;
636 }
637
638 ++dev_id_size;
639 if (dev_id_size > size) {
640 g_free(parent_dev_id);
641 parent_dev_id = g_malloc(dev_id_size);
642 }
643
644 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
645 0);
646 if (cr != CR_SUCCESS) {
647 g_error("CM_Get_Device_ID failed with code %lx", cr);
648 error_setg_win32(errp, GetLastError(),
649 "failed to get parent device ID");
650 goto out;
651 }
652 }
653
654 g_debug("querying storage controller %s for PCI information",
655 parent_dev_id);
656 parent_dev_info =
657 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
658 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
659 g_free(parent_dev_id);
660
661 if (parent_dev_info == INVALID_HANDLE_VALUE) {
662 error_setg_win32(errp, GetLastError(),
663 "failed to get parent device");
664 goto out;
665 }
666
667 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
668 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
669 error_setg_win32(errp, GetLastError(),
670 "failed to get parent device data");
671 goto out;
672 }
673
674 for (j = 0;
675 SetupDiEnumDeviceInfo(parent_dev_info, j, &parent_dev_info_data);
676 j++) {
677 DWORD addr, bus, ui_slot, type;
678 int func, slot;
679
680 /*
681 * There is no need to allocate buffer in the next functions. The
682 * size is known and ULONG according to
683 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
684 */
685 if (!SetupDiGetDeviceRegistryProperty(
686 parent_dev_info, &parent_dev_info_data, SPDRP_BUSNUMBER,
687 &type, (PBYTE)&bus, size, NULL)) {
688 debug_error("failed to get PCI bus");
689 bus = -1;
690 partial_pci = true;
691 }
692
693 /*
694 * The function retrieves the device's address. This value will be
695 * transformed into device function and number
696 */
697 if (!SetupDiGetDeviceRegistryProperty(
698 parent_dev_info, &parent_dev_info_data, SPDRP_ADDRESS,
699 &type, (PBYTE)&addr, size, NULL)) {
700 debug_error("failed to get PCI address");
701 addr = -1;
702 partial_pci = true;
703 }
704
705 /*
706 * This call returns UINumber of DEVICE_CAPABILITIES structure.
707 * This number is typically a user-perceived slot number.
708 */
709 if (!SetupDiGetDeviceRegistryProperty(
710 parent_dev_info, &parent_dev_info_data, SPDRP_UI_NUMBER,
711 &type, (PBYTE)&ui_slot, size, NULL)) {
712 debug_error("failed to get PCI slot");
713 ui_slot = -1;
714 partial_pci = true;
715 }
716
717 /*
718 * SetupApi gives us the same information as driver with
719 * IoGetDeviceProperty. According to Microsoft:
720 *
721 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
722 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
723 * SPDRP_ADDRESS is propertyAddress, so we do the same.
724 *
725 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
726 */
727 if (partial_pci) {
728 pci->domain = -1;
729 pci->slot = -1;
730 pci->function = -1;
731 pci->bus = -1;
732 continue;
733 } else {
734 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
735 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
736 if ((int)ui_slot != slot) {
737 g_debug("mismatch with reported slot values: %d vs %d",
738 (int)ui_slot, slot);
739 }
740 pci->domain = 0;
741 pci->slot = (int)ui_slot;
742 pci->function = func;
743 pci->bus = (int)bus;
744 break;
745 }
746 }
747 SetupDiDestroyDeviceInfoList(parent_dev_info);
748 break;
749 }
750
751 free_dev_info:
752 SetupDiDestroyDeviceInfoList(dev_info);
753 out:
754 return pci;
755 }
756
757 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
758 Error **errp)
759 {
760 STORAGE_PROPERTY_QUERY query;
761 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
762 DWORD received;
763 ULONG size = sizeof(buf);
764
765 dev_desc = &buf;
766 query.PropertyId = StorageDeviceProperty;
767 query.QueryType = PropertyStandardQuery;
768
769 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
770 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
771 size, &received, NULL)) {
772 error_setg_win32(errp, GetLastError(), "failed to get bus type");
773 return;
774 }
775 disk->bus_type = find_bus_type(dev_desc->BusType);
776 g_debug("bus type %d", disk->bus_type);
777
778 /* Query once more. Now with long enough buffer. */
779 size = dev_desc->Size;
780 dev_desc = g_malloc0(size);
781 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
782 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
783 size, &received, NULL)) {
784 error_setg_win32(errp, GetLastError(), "failed to get serial number");
785 g_debug("failed to get serial number");
786 goto out_free;
787 }
788 if (dev_desc->SerialNumberOffset > 0) {
789 const char *serial;
790 size_t len;
791
792 if (dev_desc->SerialNumberOffset >= received) {
793 error_setg(errp, "failed to get serial number: offset outside the buffer");
794 g_debug("serial number offset outside the buffer");
795 goto out_free;
796 }
797 serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
798 len = received - dev_desc->SerialNumberOffset;
799 g_debug("serial number \"%s\"", serial);
800 if (*serial != 0) {
801 disk->serial = g_strndup(serial, len);
802 disk->has_serial = true;
803 }
804 }
805 out_free:
806 g_free(dev_desc);
807
808 return;
809 }
810
811 static void get_single_disk_info(int disk_number,
812 GuestDiskAddress *disk, Error **errp)
813 {
814 SCSI_ADDRESS addr, *scsi_ad;
815 DWORD len;
816 HANDLE disk_h;
817 Error *local_err = NULL;
818
819 scsi_ad = &addr;
820
821 g_debug("getting disk info for: %s", disk->dev);
822 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
823 0, NULL);
824 if (disk_h == INVALID_HANDLE_VALUE) {
825 error_setg_win32(errp, GetLastError(), "failed to open disk");
826 return;
827 }
828
829 get_disk_properties(disk_h, disk, &local_err);
830 if (local_err) {
831 error_propagate(errp, local_err);
832 goto err_close;
833 }
834
835 g_debug("bus type %d", disk->bus_type);
836 /* always set pci_controller as required by schema. get_pci_info() should
837 * report -1 values for non-PCI buses rather than fail. fail the command
838 * if that doesn't hold since that suggests some other unexpected
839 * breakage
840 */
841 disk->pci_controller = get_pci_info(disk_number, &local_err);
842 if (local_err) {
843 error_propagate(errp, local_err);
844 goto err_close;
845 }
846 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
847 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
848 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
849 /* This bus type is not supported before Windows Server 2003 SP1 */
850 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
851 ) {
852 /* We are able to use the same ioctls for different bus types
853 * according to Microsoft docs
854 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
855 g_debug("getting SCSI info");
856 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
857 sizeof(SCSI_ADDRESS), &len, NULL)) {
858 disk->unit = addr.Lun;
859 disk->target = addr.TargetId;
860 disk->bus = addr.PathId;
861 }
862 /* We do not set error in this case, because we still have enough
863 * information about volume. */
864 }
865
866 err_close:
867 CloseHandle(disk_h);
868 return;
869 }
870
871 /* VSS provider works with volumes, thus there is no difference if
872 * the volume consist of spanned disks. Info about the first disk in the
873 * volume is returned for the spanned disk group (LVM) */
874 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
875 {
876 Error *local_err = NULL;
877 GuestDiskAddressList *list = NULL;
878 GuestDiskAddress *disk = NULL;
879 int i;
880 HANDLE vol_h;
881 DWORD size;
882 PVOLUME_DISK_EXTENTS extents = NULL;
883
884 /* strip final backslash */
885 char *name = g_strdup(guid);
886 if (g_str_has_suffix(name, "\\")) {
887 name[strlen(name) - 1] = 0;
888 }
889
890 g_debug("opening %s", name);
891 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
892 0, NULL);
893 if (vol_h == INVALID_HANDLE_VALUE) {
894 error_setg_win32(errp, GetLastError(), "failed to open volume");
895 goto out;
896 }
897
898 /* Get list of extents */
899 g_debug("getting disk extents");
900 size = sizeof(VOLUME_DISK_EXTENTS);
901 extents = g_malloc0(size);
902 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
903 0, extents, size, &size, NULL)) {
904 DWORD last_err = GetLastError();
905 if (last_err == ERROR_MORE_DATA) {
906 /* Try once more with big enough buffer */
907 g_free(extents);
908 extents = g_malloc0(size);
909 if (!DeviceIoControl(
910 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
911 0, extents, size, NULL, NULL)) {
912 error_setg_win32(errp, GetLastError(),
913 "failed to get disk extents");
914 goto out;
915 }
916 } else if (last_err == ERROR_INVALID_FUNCTION) {
917 /* Possibly CD-ROM or a shared drive. Try to pass the volume */
918 g_debug("volume not on disk");
919 disk = g_malloc0(sizeof(GuestDiskAddress));
920 disk->has_dev = true;
921 disk->dev = g_strdup(name);
922 get_single_disk_info(0xffffffff, disk, &local_err);
923 if (local_err) {
924 g_debug("failed to get disk info, ignoring error: %s",
925 error_get_pretty(local_err));
926 error_free(local_err);
927 goto out;
928 }
929 QAPI_LIST_PREPEND(list, disk);
930 disk = NULL;
931 goto out;
932 } else {
933 error_setg_win32(errp, GetLastError(),
934 "failed to get disk extents");
935 goto out;
936 }
937 }
938 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
939
940 /* Go through each extent */
941 for (i = 0; i < extents->NumberOfDiskExtents; i++) {
942 disk = g_malloc0(sizeof(GuestDiskAddress));
943
944 /* Disk numbers directly correspond to numbers used in UNCs
945 *
946 * See documentation for DISK_EXTENT:
947 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
948 *
949 * See also Naming Files, Paths and Namespaces:
950 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
951 */
952 disk->has_dev = true;
953 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
954 extents->Extents[i].DiskNumber);
955
956 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
957 if (local_err) {
958 error_propagate(errp, local_err);
959 goto out;
960 }
961 QAPI_LIST_PREPEND(list, disk);
962 disk = NULL;
963 }
964
965
966 out:
967 if (vol_h != INVALID_HANDLE_VALUE) {
968 CloseHandle(vol_h);
969 }
970 qapi_free_GuestDiskAddress(disk);
971 g_free(extents);
972 g_free(name);
973
974 return list;
975 }
976
977 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
978 {
979 ERRP_GUARD();
980 GuestDiskInfoList *ret = NULL;
981 HDEVINFO dev_info;
982 SP_DEVICE_INTERFACE_DATA dev_iface_data;
983 int i;
984
985 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
986 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
987 if (dev_info == INVALID_HANDLE_VALUE) {
988 error_setg_win32(errp, GetLastError(), "failed to get device tree");
989 return NULL;
990 }
991
992 g_debug("enumerating devices");
993 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
994 for (i = 0;
995 SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
996 i, &dev_iface_data);
997 i++) {
998 GuestDiskAddress *address = NULL;
999 GuestDiskInfo *disk = NULL;
1000 Error *local_err = NULL;
1001 g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1002 pdev_iface_detail_data = NULL;
1003 STORAGE_DEVICE_NUMBER sdn;
1004 HANDLE dev_file;
1005 DWORD size = 0;
1006 BOOL result;
1007 int attempt;
1008
1009 g_debug(" getting device path");
1010 for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1011 result = SetupDiGetDeviceInterfaceDetail(dev_info,
1012 &dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1013 if (result) {
1014 break;
1015 }
1016 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1017 pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1018 size);
1019 pdev_iface_detail_data->cbSize =
1020 sizeof(*pdev_iface_detail_data);
1021 } else {
1022 g_debug("failed to get device interface details");
1023 break;
1024 }
1025 }
1026 if (!result) {
1027 g_debug("skipping device");
1028 continue;
1029 }
1030
1031 g_debug(" device: %s", pdev_iface_detail_data->DevicePath);
1032 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1033 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1034 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1035 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1036 CloseHandle(dev_file);
1037 debug_error("failed to get storage device number");
1038 continue;
1039 }
1040 CloseHandle(dev_file);
1041
1042 disk = g_new0(GuestDiskInfo, 1);
1043 disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1044 sdn.DeviceNumber);
1045
1046 g_debug(" number: %lu", sdn.DeviceNumber);
1047 address = g_malloc0(sizeof(GuestDiskAddress));
1048 address->has_dev = true;
1049 address->dev = g_strdup(disk->name);
1050 get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1051 if (local_err) {
1052 g_debug("failed to get disk info: %s",
1053 error_get_pretty(local_err));
1054 error_free(local_err);
1055 qapi_free_GuestDiskAddress(address);
1056 address = NULL;
1057 } else {
1058 disk->address = address;
1059 disk->has_address = true;
1060 }
1061
1062 QAPI_LIST_PREPEND(ret, disk);
1063 }
1064
1065 SetupDiDestroyDeviceInfoList(dev_info);
1066 return ret;
1067 }
1068
1069 #else
1070
1071 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
1072 {
1073 return NULL;
1074 }
1075
1076 GuestDiskInfoList *qmp_guest_get_disks(Error **errp)
1077 {
1078 error_setg(errp, QERR_UNSUPPORTED);
1079 return NULL;
1080 }
1081
1082 #endif /* CONFIG_QGA_NTDDSCSI */
1083
1084 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
1085 {
1086 DWORD info_size;
1087 char mnt, *mnt_point;
1088 wchar_t wfs_name[32];
1089 char fs_name[32];
1090 wchar_t vol_info[MAX_PATH + 1];
1091 size_t len;
1092 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1093 GuestFilesystemInfo *fs = NULL;
1094 HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1095
1096 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1097 if (GetLastError() != ERROR_MORE_DATA) {
1098 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1099 return NULL;
1100 }
1101
1102 mnt_point = g_malloc(info_size + 1);
1103 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1104 &info_size)) {
1105 error_setg_win32(errp, GetLastError(), "failed to get volume name");
1106 goto free;
1107 }
1108
1109 hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1110 FILE_ATTRIBUTE_NORMAL |
1111 FILE_FLAG_BACKUP_SEMANTICS, NULL);
1112 if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1113 error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1114 goto free;
1115 }
1116
1117 len = strlen(mnt_point);
1118 mnt_point[len] = '\\';
1119 mnt_point[len + 1] = 0;
1120
1121 if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1122 sizeof(vol_info), NULL, NULL, NULL,
1123 (LPWSTR) & wfs_name, sizeof(wfs_name))) {
1124 if (GetLastError() != ERROR_NOT_READY) {
1125 error_setg_win32(errp, GetLastError(), "failed to get volume info");
1126 }
1127 goto free;
1128 }
1129
1130 fs = g_malloc(sizeof(*fs));
1131 fs->name = g_strdup(guid);
1132 fs->has_total_bytes = false;
1133 fs->has_used_bytes = false;
1134 if (len == 0) {
1135 fs->mountpoint = g_strdup("System Reserved");
1136 } else {
1137 fs->mountpoint = g_strndup(mnt_point, len);
1138 if (GetDiskFreeSpaceEx(fs->mountpoint,
1139 (PULARGE_INTEGER) & i64FreeBytesToCaller,
1140 (PULARGE_INTEGER) & i64TotalBytes,
1141 (PULARGE_INTEGER) & i64FreeBytes)) {
1142 fs->used_bytes = i64TotalBytes - i64FreeBytes;
1143 fs->total_bytes = i64TotalBytes;
1144 fs->has_total_bytes = true;
1145 fs->has_used_bytes = true;
1146 }
1147 }
1148 wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1149 fs->type = g_strdup(fs_name);
1150 fs->disk = build_guest_disk_info(guid, errp);
1151 free:
1152 if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1153 CloseHandle(hLocalDiskHandle);
1154 }
1155 g_free(mnt_point);
1156 return fs;
1157 }
1158
1159 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1160 {
1161 HANDLE vol_h;
1162 GuestFilesystemInfoList *ret = NULL;
1163 char guid[256];
1164
1165 vol_h = FindFirstVolume(guid, sizeof(guid));
1166 if (vol_h == INVALID_HANDLE_VALUE) {
1167 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1168 return NULL;
1169 }
1170
1171 do {
1172 Error *local_err = NULL;
1173 GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1174 if (local_err) {
1175 g_debug("failed to get filesystem info, ignoring error: %s",
1176 error_get_pretty(local_err));
1177 error_free(local_err);
1178 continue;
1179 }
1180 QAPI_LIST_PREPEND(ret, info);
1181 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1182
1183 if (GetLastError() != ERROR_NO_MORE_FILES) {
1184 error_setg_win32(errp, GetLastError(), "failed to find next volume");
1185 }
1186
1187 FindVolumeClose(vol_h);
1188 return ret;
1189 }
1190
1191 /*
1192 * Return status of freeze/thaw
1193 */
1194 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1195 {
1196 if (!vss_initialized()) {
1197 error_setg(errp, QERR_UNSUPPORTED);
1198 return 0;
1199 }
1200
1201 if (ga_is_frozen(ga_state)) {
1202 return GUEST_FSFREEZE_STATUS_FROZEN;
1203 }
1204
1205 return GUEST_FSFREEZE_STATUS_THAWED;
1206 }
1207
1208 /*
1209 * Freeze local file systems using Volume Shadow-copy Service.
1210 * The frozen state is limited for up to 10 seconds by VSS.
1211 */
1212 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1213 {
1214 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1215 }
1216
1217 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1218 strList *mountpoints,
1219 Error **errp)
1220 {
1221 int i;
1222 Error *local_err = NULL;
1223
1224 if (!vss_initialized()) {
1225 error_setg(errp, QERR_UNSUPPORTED);
1226 return 0;
1227 }
1228
1229 slog("guest-fsfreeze called");
1230
1231 /* cannot risk guest agent blocking itself on a write in this state */
1232 ga_set_frozen(ga_state);
1233
1234 qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1235 if (local_err) {
1236 error_propagate(errp, local_err);
1237 goto error;
1238 }
1239
1240 return i;
1241
1242 error:
1243 local_err = NULL;
1244 qmp_guest_fsfreeze_thaw(&local_err);
1245 if (local_err) {
1246 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1247 error_free(local_err);
1248 }
1249 return 0;
1250 }
1251
1252 /*
1253 * Thaw local file systems using Volume Shadow-copy Service.
1254 */
1255 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1256 {
1257 int i;
1258
1259 if (!vss_initialized()) {
1260 error_setg(errp, QERR_UNSUPPORTED);
1261 return 0;
1262 }
1263
1264 qga_vss_fsfreeze(&i, false, NULL, errp);
1265
1266 ga_unset_frozen(ga_state);
1267 return i;
1268 }
1269
1270 static void guest_fsfreeze_cleanup(void)
1271 {
1272 Error *err = NULL;
1273
1274 if (!vss_initialized()) {
1275 return;
1276 }
1277
1278 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1279 qmp_guest_fsfreeze_thaw(&err);
1280 if (err) {
1281 slog("failed to clean up frozen filesystems: %s",
1282 error_get_pretty(err));
1283 error_free(err);
1284 }
1285 }
1286
1287 vss_deinit(true);
1288 }
1289
1290 /*
1291 * Walk list of mounted file systems in the guest, and discard unused
1292 * areas.
1293 */
1294 GuestFilesystemTrimResponse *
1295 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1296 {
1297 GuestFilesystemTrimResponse *resp;
1298 HANDLE handle;
1299 WCHAR guid[MAX_PATH] = L"";
1300 OSVERSIONINFO osvi;
1301 BOOL win8_or_later;
1302
1303 ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1304 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1305 GetVersionEx(&osvi);
1306 win8_or_later = (osvi.dwMajorVersion > 6 ||
1307 ((osvi.dwMajorVersion == 6) &&
1308 (osvi.dwMinorVersion >= 2)));
1309 if (!win8_or_later) {
1310 error_setg(errp, "fstrim is only supported for Win8+");
1311 return NULL;
1312 }
1313
1314 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1315 if (handle == INVALID_HANDLE_VALUE) {
1316 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1317 return NULL;
1318 }
1319
1320 resp = g_new0(GuestFilesystemTrimResponse, 1);
1321
1322 do {
1323 GuestFilesystemTrimResult *res;
1324 PWCHAR uc_path;
1325 DWORD char_count = 0;
1326 char *path, *out;
1327 GError *gerr = NULL;
1328 gchar *argv[4];
1329
1330 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1331
1332 if (GetLastError() != ERROR_MORE_DATA) {
1333 continue;
1334 }
1335 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1336 continue;
1337 }
1338
1339 uc_path = g_malloc(sizeof(WCHAR) * char_count);
1340 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1341 &char_count) || !*uc_path) {
1342 /* strange, but this condition could be faced even with size == 2 */
1343 g_free(uc_path);
1344 continue;
1345 }
1346
1347 res = g_new0(GuestFilesystemTrimResult, 1);
1348
1349 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1350
1351 g_free(uc_path);
1352
1353 if (!path) {
1354 res->has_error = true;
1355 res->error = g_strdup(gerr->message);
1356 g_error_free(gerr);
1357 break;
1358 }
1359
1360 res->path = path;
1361
1362 QAPI_LIST_PREPEND(resp->paths, res);
1363
1364 memset(argv, 0, sizeof(argv));
1365 argv[0] = (gchar *)"defrag.exe";
1366 argv[1] = (gchar *)"/L";
1367 argv[2] = path;
1368
1369 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1370 &out /* stdout */, NULL /* stdin */,
1371 NULL, &gerr)) {
1372 res->has_error = true;
1373 res->error = g_strdup(gerr->message);
1374 g_error_free(gerr);
1375 } else {
1376 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1377 Error is reported in the output with something like
1378 (x89000020) etc code in the stdout */
1379
1380 int i;
1381 gchar **lines = g_strsplit(out, "\r\n", 0);
1382 g_free(out);
1383
1384 for (i = 0; lines[i] != NULL; i++) {
1385 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1386 continue;
1387 }
1388 res->has_error = true;
1389 res->error = g_strdup(lines[i]);
1390 break;
1391 }
1392 g_strfreev(lines);
1393 }
1394 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1395
1396 FindVolumeClose(handle);
1397 return resp;
1398 }
1399
1400 typedef enum {
1401 GUEST_SUSPEND_MODE_DISK,
1402 GUEST_SUSPEND_MODE_RAM
1403 } GuestSuspendMode;
1404
1405 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1406 {
1407 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1408
1409 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1410 if (!GetPwrCapabilities(&sys_pwr_caps)) {
1411 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1412 "failed to determine guest suspend capabilities");
1413 return;
1414 }
1415
1416 switch (mode) {
1417 case GUEST_SUSPEND_MODE_DISK:
1418 if (!sys_pwr_caps.SystemS4) {
1419 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1420 "suspend-to-disk not supported by OS");
1421 }
1422 break;
1423 case GUEST_SUSPEND_MODE_RAM:
1424 if (!sys_pwr_caps.SystemS3) {
1425 error_setg(errp, QERR_QGA_COMMAND_FAILED,
1426 "suspend-to-ram not supported by OS");
1427 }
1428 break;
1429 default:
1430 abort();
1431 }
1432 }
1433
1434 static DWORD WINAPI do_suspend(LPVOID opaque)
1435 {
1436 GuestSuspendMode *mode = opaque;
1437 DWORD ret = 0;
1438
1439 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1440 g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1441 slog("failed to suspend guest: %s", emsg);
1442 ret = -1;
1443 }
1444 g_free(mode);
1445 return ret;
1446 }
1447
1448 void qmp_guest_suspend_disk(Error **errp)
1449 {
1450 Error *local_err = NULL;
1451 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1452
1453 *mode = GUEST_SUSPEND_MODE_DISK;
1454 check_suspend_mode(*mode, &local_err);
1455 if (local_err) {
1456 goto out;
1457 }
1458 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1459 if (local_err) {
1460 goto out;
1461 }
1462 execute_async(do_suspend, mode, &local_err);
1463
1464 out:
1465 if (local_err) {
1466 error_propagate(errp, local_err);
1467 g_free(mode);
1468 }
1469 }
1470
1471 void qmp_guest_suspend_ram(Error **errp)
1472 {
1473 Error *local_err = NULL;
1474 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1475
1476 *mode = GUEST_SUSPEND_MODE_RAM;
1477 check_suspend_mode(*mode, &local_err);
1478 if (local_err) {
1479 goto out;
1480 }
1481 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1482 if (local_err) {
1483 goto out;
1484 }
1485 execute_async(do_suspend, mode, &local_err);
1486
1487 out:
1488 if (local_err) {
1489 error_propagate(errp, local_err);
1490 g_free(mode);
1491 }
1492 }
1493
1494 void qmp_guest_suspend_hybrid(Error **errp)
1495 {
1496 error_setg(errp, QERR_UNSUPPORTED);
1497 }
1498
1499 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1500 {
1501 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1502 ULONG adptr_addrs_len = 0;
1503 DWORD ret;
1504
1505 /* Call the first time to get the adptr_addrs_len. */
1506 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1507 NULL, adptr_addrs, &adptr_addrs_len);
1508
1509 adptr_addrs = g_malloc(adptr_addrs_len);
1510 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1511 NULL, adptr_addrs, &adptr_addrs_len);
1512 if (ret != ERROR_SUCCESS) {
1513 error_setg_win32(errp, ret, "failed to get adapters addresses");
1514 g_free(adptr_addrs);
1515 adptr_addrs = NULL;
1516 }
1517 return adptr_addrs;
1518 }
1519
1520 static char *guest_wctomb_dup(WCHAR *wstr)
1521 {
1522 char *str;
1523 size_t str_size;
1524
1525 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1526 /* add 1 to str_size for NULL terminator */
1527 str = g_malloc(str_size + 1);
1528 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1529 return str;
1530 }
1531
1532 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1533 Error **errp)
1534 {
1535 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1536 DWORD len;
1537 int ret;
1538
1539 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1540 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1541 len = sizeof(addr_str);
1542 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1543 ip_addr->Address.iSockaddrLength,
1544 NULL,
1545 addr_str,
1546 &len);
1547 if (ret != 0) {
1548 error_setg_win32(errp, WSAGetLastError(),
1549 "failed address presentation form conversion");
1550 return NULL;
1551 }
1552 return g_strdup(addr_str);
1553 }
1554 return NULL;
1555 }
1556
1557 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1558 {
1559 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1560 * field to obtain the prefix.
1561 */
1562 return ip_addr->OnLinkPrefixLength;
1563 }
1564
1565 #define INTERFACE_PATH_BUF_SZ 512
1566
1567 static DWORD get_interface_index(const char *guid)
1568 {
1569 ULONG index;
1570 DWORD status;
1571 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1572 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1573 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1574 status = GetAdapterIndex (wbuf, &index);
1575 if (status != NO_ERROR) {
1576 return (DWORD)~0;
1577 } else {
1578 return index;
1579 }
1580 }
1581
1582 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1583
1584 static int guest_get_network_stats(const char *name,
1585 GuestNetworkInterfaceStat *stats)
1586 {
1587 OSVERSIONINFO os_ver;
1588
1589 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1590 GetVersionEx(&os_ver);
1591 if (os_ver.dwMajorVersion >= 6) {
1592 MIB_IF_ROW2 a_mid_ifrow;
1593 GetIfEntry2Func getifentry2_ex;
1594 DWORD if_index = 0;
1595 HMODULE module = GetModuleHandle("iphlpapi");
1596 PVOID func = GetProcAddress(module, "GetIfEntry2");
1597
1598 if (func == NULL) {
1599 return -1;
1600 }
1601
1602 getifentry2_ex = (GetIfEntry2Func)func;
1603 if_index = get_interface_index(name);
1604 if (if_index == (DWORD)~0) {
1605 return -1;
1606 }
1607
1608 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1609 a_mid_ifrow.InterfaceIndex = if_index;
1610 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1611 stats->rx_bytes = a_mid_ifrow.InOctets;
1612 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1613 stats->rx_errs = a_mid_ifrow.InErrors;
1614 stats->rx_dropped = a_mid_ifrow.InDiscards;
1615 stats->tx_bytes = a_mid_ifrow.OutOctets;
1616 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1617 stats->tx_errs = a_mid_ifrow.OutErrors;
1618 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1619 return 0;
1620 }
1621 }
1622 return -1;
1623 }
1624
1625 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1626 {
1627 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1628 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1629 GuestNetworkInterfaceList *head = NULL, **tail = &head;
1630 GuestIpAddressList *head_addr, **tail_addr;
1631 GuestNetworkInterface *info;
1632 GuestNetworkInterfaceStat *interface_stat = NULL;
1633 GuestIpAddress *address_item = NULL;
1634 unsigned char *mac_addr;
1635 char *addr_str;
1636 WORD wsa_version;
1637 WSADATA wsa_data;
1638 int ret;
1639
1640 adptr_addrs = guest_get_adapters_addresses(errp);
1641 if (adptr_addrs == NULL) {
1642 return NULL;
1643 }
1644
1645 /* Make WSA APIs available. */
1646 wsa_version = MAKEWORD(2, 2);
1647 ret = WSAStartup(wsa_version, &wsa_data);
1648 if (ret != 0) {
1649 error_setg_win32(errp, ret, "failed socket startup");
1650 goto out;
1651 }
1652
1653 for (addr = adptr_addrs; addr; addr = addr->Next) {
1654 info = g_malloc0(sizeof(*info));
1655
1656 QAPI_LIST_APPEND(tail, info);
1657
1658 info->name = guest_wctomb_dup(addr->FriendlyName);
1659
1660 if (addr->PhysicalAddressLength != 0) {
1661 mac_addr = addr->PhysicalAddress;
1662
1663 info->hardware_address =
1664 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1665 (int) mac_addr[0], (int) mac_addr[1],
1666 (int) mac_addr[2], (int) mac_addr[3],
1667 (int) mac_addr[4], (int) mac_addr[5]);
1668
1669 info->has_hardware_address = true;
1670 }
1671
1672 head_addr = NULL;
1673 tail_addr = &head_addr;
1674 for (ip_addr = addr->FirstUnicastAddress;
1675 ip_addr;
1676 ip_addr = ip_addr->Next) {
1677 addr_str = guest_addr_to_str(ip_addr, errp);
1678 if (addr_str == NULL) {
1679 continue;
1680 }
1681
1682 address_item = g_malloc0(sizeof(*address_item));
1683
1684 QAPI_LIST_APPEND(tail_addr, address_item);
1685
1686 address_item->ip_address = addr_str;
1687 address_item->prefix = guest_ip_prefix(ip_addr);
1688 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1689 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1690 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1691 address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1692 }
1693 }
1694 if (head_addr) {
1695 info->has_ip_addresses = true;
1696 info->ip_addresses = head_addr;
1697 }
1698 if (!info->has_statistics) {
1699 interface_stat = g_malloc0(sizeof(*interface_stat));
1700 if (guest_get_network_stats(addr->AdapterName,
1701 interface_stat) == -1) {
1702 info->has_statistics = false;
1703 g_free(interface_stat);
1704 } else {
1705 info->statistics = interface_stat;
1706 info->has_statistics = true;
1707 }
1708 }
1709 }
1710 WSACleanup();
1711 out:
1712 g_free(adptr_addrs);
1713 return head;
1714 }
1715
1716 static int64_t filetime_to_ns(const FILETIME *tf)
1717 {
1718 return ((((int64_t)tf->dwHighDateTime << 32) | tf->dwLowDateTime)
1719 - W32_FT_OFFSET) * 100;
1720 }
1721
1722 int64_t qmp_guest_get_time(Error **errp)
1723 {
1724 SYSTEMTIME ts = {0};
1725 FILETIME tf;
1726
1727 GetSystemTime(&ts);
1728 if (ts.wYear < 1601 || ts.wYear > 30827) {
1729 error_setg(errp, "Failed to get time");
1730 return -1;
1731 }
1732
1733 if (!SystemTimeToFileTime(&ts, &tf)) {
1734 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1735 return -1;
1736 }
1737
1738 return filetime_to_ns(&tf);
1739 }
1740
1741 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1742 {
1743 Error *local_err = NULL;
1744 SYSTEMTIME ts;
1745 FILETIME tf;
1746 LONGLONG time;
1747
1748 if (!has_time) {
1749 /* Unfortunately, Windows libraries don't provide an easy way to access
1750 * RTC yet:
1751 *
1752 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1753 *
1754 * Instead, a workaround is to use the Windows win32tm command to
1755 * resync the time using the Windows Time service.
1756 */
1757 LPVOID msg_buffer;
1758 DWORD ret_flags;
1759
1760 HRESULT hr = system("w32tm /resync /nowait");
1761
1762 if (GetLastError() != 0) {
1763 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1764 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1765 } else if (hr != 0) {
1766 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1767 error_setg(errp, "Windows Time service not running on the "
1768 "guest");
1769 } else {
1770 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1771 FORMAT_MESSAGE_FROM_SYSTEM |
1772 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1773 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1774 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1775 NULL)) {
1776 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1777 "t retrieve error message", hr);
1778 } else {
1779 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1780 (LPCTSTR)msg_buffer);
1781 LocalFree(msg_buffer);
1782 }
1783 }
1784 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1785 error_setg(errp, "No internet connection on guest, sync not "
1786 "accurate");
1787 }
1788 return;
1789 }
1790
1791 /* Validate time passed by user. */
1792 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1793 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1794 return;
1795 }
1796
1797 time = time_ns / 100 + W32_FT_OFFSET;
1798
1799 tf.dwLowDateTime = (DWORD) time;
1800 tf.dwHighDateTime = (DWORD) (time >> 32);
1801
1802 if (!FileTimeToSystemTime(&tf, &ts)) {
1803 error_setg(errp, "Failed to convert system time %d",
1804 (int)GetLastError());
1805 return;
1806 }
1807
1808 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1809 if (local_err) {
1810 error_propagate(errp, local_err);
1811 return;
1812 }
1813
1814 if (!SetSystemTime(&ts)) {
1815 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1816 return;
1817 }
1818 }
1819
1820 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1821 {
1822 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1823 DWORD length;
1824 GuestLogicalProcessorList *head, **tail;
1825 Error *local_err = NULL;
1826 int64_t current;
1827
1828 ptr = pslpi = NULL;
1829 length = 0;
1830 current = 0;
1831 head = NULL;
1832 tail = &head;
1833
1834 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1835 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1836 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1837 ptr = pslpi = g_malloc0(length);
1838 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1839 error_setg(&local_err, "Failed to get processor information: %d",
1840 (int)GetLastError());
1841 }
1842 } else {
1843 error_setg(&local_err,
1844 "Failed to get processor information buffer length: %d",
1845 (int)GetLastError());
1846 }
1847
1848 while ((local_err == NULL) && (length > 0)) {
1849 if (pslpi->Relationship == RelationProcessorCore) {
1850 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1851
1852 while (cpu_bits > 0) {
1853 if (!!(cpu_bits & 1)) {
1854 GuestLogicalProcessor *vcpu;
1855
1856 vcpu = g_malloc0(sizeof *vcpu);
1857 vcpu->logical_id = current++;
1858 vcpu->online = true;
1859 vcpu->has_can_offline = true;
1860
1861 QAPI_LIST_APPEND(tail, vcpu);
1862 }
1863 cpu_bits >>= 1;
1864 }
1865 }
1866 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1867 pslpi++; /* next entry */
1868 }
1869
1870 g_free(ptr);
1871
1872 if (local_err == NULL) {
1873 if (head != NULL) {
1874 return head;
1875 }
1876 /* there's no guest with zero VCPUs */
1877 error_setg(&local_err, "Guest reported zero VCPUs");
1878 }
1879
1880 qapi_free_GuestLogicalProcessorList(head);
1881 error_propagate(errp, local_err);
1882 return NULL;
1883 }
1884
1885 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1886 {
1887 error_setg(errp, QERR_UNSUPPORTED);
1888 return -1;
1889 }
1890
1891 static gchar *
1892 get_net_error_message(gint error)
1893 {
1894 HMODULE module = NULL;
1895 gchar *retval = NULL;
1896 wchar_t *msg = NULL;
1897 int flags;
1898 size_t nchars;
1899
1900 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1901 FORMAT_MESSAGE_IGNORE_INSERTS |
1902 FORMAT_MESSAGE_FROM_SYSTEM;
1903
1904 if (error >= NERR_BASE && error <= MAX_NERR) {
1905 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1906
1907 if (module != NULL) {
1908 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1909 }
1910 }
1911
1912 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1913
1914 if (msg != NULL) {
1915 nchars = wcslen(msg);
1916
1917 if (nchars >= 2 &&
1918 msg[nchars - 1] == L'\n' &&
1919 msg[nchars - 2] == L'\r') {
1920 msg[nchars - 2] = L'\0';
1921 }
1922
1923 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1924
1925 LocalFree(msg);
1926 }
1927
1928 if (module != NULL) {
1929 FreeLibrary(module);
1930 }
1931
1932 return retval;
1933 }
1934
1935 void qmp_guest_set_user_password(const char *username,
1936 const char *password,
1937 bool crypted,
1938 Error **errp)
1939 {
1940 NET_API_STATUS nas;
1941 char *rawpasswddata = NULL;
1942 size_t rawpasswdlen;
1943 wchar_t *user = NULL, *wpass = NULL;
1944 USER_INFO_1003 pi1003 = { 0, };
1945 GError *gerr = NULL;
1946
1947 if (crypted) {
1948 error_setg(errp, QERR_UNSUPPORTED);
1949 return;
1950 }
1951
1952 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1953 if (!rawpasswddata) {
1954 return;
1955 }
1956 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1957 rawpasswddata[rawpasswdlen] = '\0';
1958
1959 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1960 if (!user) {
1961 goto done;
1962 }
1963
1964 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1965 if (!wpass) {
1966 goto done;
1967 }
1968
1969 pi1003.usri1003_password = wpass;
1970 nas = NetUserSetInfo(NULL, user,
1971 1003, (LPBYTE)&pi1003,
1972 NULL);
1973
1974 if (nas != NERR_Success) {
1975 gchar *msg = get_net_error_message(nas);
1976 error_setg(errp, "failed to set password: %s", msg);
1977 g_free(msg);
1978 }
1979
1980 done:
1981 if (gerr) {
1982 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1983 g_error_free(gerr);
1984 }
1985 g_free(user);
1986 g_free(wpass);
1987 g_free(rawpasswddata);
1988 }
1989
1990 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1991 {
1992 error_setg(errp, QERR_UNSUPPORTED);
1993 return NULL;
1994 }
1995
1996 GuestMemoryBlockResponseList *
1997 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1998 {
1999 error_setg(errp, QERR_UNSUPPORTED);
2000 return NULL;
2001 }
2002
2003 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
2004 {
2005 error_setg(errp, QERR_UNSUPPORTED);
2006 return NULL;
2007 }
2008
2009 /* add unsupported commands to the blacklist */
2010 GList *ga_command_blacklist_init(GList *blacklist)
2011 {
2012 const char *list_unsupported[] = {
2013 "guest-suspend-hybrid",
2014 "guest-set-vcpus",
2015 "guest-get-memory-blocks", "guest-set-memory-blocks",
2016 "guest-get-memory-block-size", "guest-get-memory-block-info",
2017 NULL};
2018 char **p = (char **)list_unsupported;
2019
2020 while (*p) {
2021 blacklist = g_list_append(blacklist, g_strdup(*p++));
2022 }
2023
2024 if (!vss_init(true)) {
2025 g_debug("vss_init failed, vss commands are going to be disabled");
2026 const char *list[] = {
2027 "guest-get-fsinfo", "guest-fsfreeze-status",
2028 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
2029 p = (char **)list;
2030
2031 while (*p) {
2032 blacklist = g_list_append(blacklist, g_strdup(*p++));
2033 }
2034 }
2035
2036 return blacklist;
2037 }
2038
2039 /* register init/cleanup routines for stateful command groups */
2040 void ga_command_state_init(GAState *s, GACommandState *cs)
2041 {
2042 if (!vss_initialized()) {
2043 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
2044 }
2045 }
2046
2047 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
2048 typedef struct _GA_WTSINFOA {
2049 WTS_CONNECTSTATE_CLASS State;
2050 DWORD SessionId;
2051 DWORD IncomingBytes;
2052 DWORD OutgoingBytes;
2053 DWORD IncomingFrames;
2054 DWORD OutgoingFrames;
2055 DWORD IncomingCompressedBytes;
2056 DWORD OutgoingCompressedBy;
2057 CHAR WinStationName[WINSTATIONNAME_LENGTH];
2058 CHAR Domain[DOMAIN_LENGTH];
2059 CHAR UserName[USERNAME_LENGTH + 1];
2060 LARGE_INTEGER ConnectTime;
2061 LARGE_INTEGER DisconnectTime;
2062 LARGE_INTEGER LastInputTime;
2063 LARGE_INTEGER LogonTime;
2064 LARGE_INTEGER CurrentTime;
2065
2066 } GA_WTSINFOA;
2067
2068 GuestUserList *qmp_guest_get_users(Error **errp)
2069 {
2070 #define QGA_NANOSECONDS 10000000
2071
2072 GHashTable *cache = NULL;
2073 GuestUserList *head = NULL, **tail = &head;
2074
2075 DWORD buffer_size = 0, count = 0, i = 0;
2076 GA_WTSINFOA *info = NULL;
2077 WTS_SESSION_INFOA *entries = NULL;
2078 GuestUser *user = NULL;
2079 gpointer value = NULL;
2080 INT64 login = 0;
2081 double login_time = 0;
2082
2083 cache = g_hash_table_new(g_str_hash, g_str_equal);
2084
2085 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2086 for (i = 0; i < count; ++i) {
2087 buffer_size = 0;
2088 info = NULL;
2089 if (WTSQuerySessionInformationA(
2090 NULL,
2091 entries[i].SessionId,
2092 WTSSessionInfo,
2093 (LPSTR *)&info,
2094 &buffer_size
2095 )) {
2096
2097 if (strlen(info->UserName) == 0) {
2098 WTSFreeMemory(info);
2099 continue;
2100 }
2101
2102 login = info->LogonTime.QuadPart;
2103 login -= W32_FT_OFFSET;
2104 login_time = ((double)login) / QGA_NANOSECONDS;
2105
2106 if (g_hash_table_contains(cache, info->UserName)) {
2107 value = g_hash_table_lookup(cache, info->UserName);
2108 user = (GuestUser *)value;
2109 if (user->login_time > login_time) {
2110 user->login_time = login_time;
2111 }
2112 } else {
2113 user = g_new0(GuestUser, 1);
2114
2115 user->user = g_strdup(info->UserName);
2116 user->domain = g_strdup(info->Domain);
2117 user->has_domain = true;
2118
2119 user->login_time = login_time;
2120
2121 g_hash_table_add(cache, user->user);
2122
2123 QAPI_LIST_APPEND(tail, user);
2124 }
2125 }
2126 WTSFreeMemory(info);
2127 }
2128 WTSFreeMemory(entries);
2129 }
2130 g_hash_table_destroy(cache);
2131 return head;
2132 }
2133
2134 typedef struct _ga_matrix_lookup_t {
2135 int major;
2136 int minor;
2137 char const *version;
2138 char const *version_id;
2139 } ga_matrix_lookup_t;
2140
2141 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = {
2142 {
2143 /* Desktop editions */
2144 { 5, 0, "Microsoft Windows 2000", "2000"},
2145 { 5, 1, "Microsoft Windows XP", "xp"},
2146 { 6, 0, "Microsoft Windows Vista", "vista"},
2147 { 6, 1, "Microsoft Windows 7" "7"},
2148 { 6, 2, "Microsoft Windows 8", "8"},
2149 { 6, 3, "Microsoft Windows 8.1", "8.1"},
2150 {10, 0, "Microsoft Windows 10", "10"},
2151 { 0, 0, 0}
2152 },{
2153 /* Server editions */
2154 { 5, 2, "Microsoft Windows Server 2003", "2003"},
2155 { 6, 0, "Microsoft Windows Server 2008", "2008"},
2156 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2157 { 6, 2, "Microsoft Windows Server 2012", "2012"},
2158 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2159 { 0, 0, 0},
2160 { 0, 0, 0},
2161 { 0, 0, 0}
2162 }
2163 };
2164
2165 typedef struct _ga_win_10_0_server_t {
2166 int final_build;
2167 char const *version;
2168 char const *version_id;
2169 } ga_win_10_0_server_t;
2170
2171 static ga_win_10_0_server_t const WIN_10_0_SERVER_VERSION_MATRIX[4] = {
2172 {14393, "Microsoft Windows Server 2016", "2016"},
2173 {17763, "Microsoft Windows Server 2019", "2019"},
2174 {20344, "Microsoft Windows Server 2022", "2022"},
2175 {0, 0}
2176 };
2177
2178 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2179 {
2180 typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2181 RTL_OSVERSIONINFOEXW *os_version_info_ex);
2182
2183 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2184
2185 HMODULE module = GetModuleHandle("ntdll");
2186 PVOID fun = GetProcAddress(module, "RtlGetVersion");
2187 if (fun == NULL) {
2188 error_setg(errp, QERR_QGA_COMMAND_FAILED,
2189 "Failed to get address of RtlGetVersion");
2190 return;
2191 }
2192
2193 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2194 rtl_get_version(info);
2195 return;
2196 }
2197
2198 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
2199 {
2200 DWORD major = os_version->dwMajorVersion;
2201 DWORD minor = os_version->dwMinorVersion;
2202 DWORD build = os_version->dwBuildNumber;
2203 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2204 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
2205 ga_win_10_0_server_t const *win_10_0_table = WIN_10_0_SERVER_VERSION_MATRIX;
2206 while (table->version != NULL) {
2207 if (major == 10 && minor == 0 && tbl_idx) {
2208 while (win_10_0_table->version != NULL) {
2209 if (build <= win_10_0_table->final_build) {
2210 if (id) {
2211 return g_strdup(win_10_0_table->version_id);
2212 } else {
2213 return g_strdup(win_10_0_table->version);
2214 }
2215 }
2216 win_10_0_table++;
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->has_kernel_version = true;
2328 info->kernel_version = g_strdup_printf("%lu.%lu",
2329 os_version.dwMajorVersion,
2330 os_version.dwMinorVersion);
2331 info->has_kernel_release = true;
2332 info->kernel_release = g_strdup_printf("%lu",
2333 os_version.dwBuildNumber);
2334 info->has_machine = true;
2335 info->machine = ga_get_current_arch();
2336
2337 info->has_id = true;
2338 info->id = g_strdup("mswindows");
2339 info->has_name = true;
2340 info->name = g_strdup("Microsoft Windows");
2341 info->has_pretty_name = true;
2342 info->pretty_name = product_name;
2343 info->has_version = true;
2344 info->version = ga_get_win_name(&os_version, false);
2345 info->has_version_id = true;
2346 info->version_id = ga_get_win_name(&os_version, true);
2347 info->has_variant = true;
2348 info->variant = g_strdup(server ? "server" : "client");
2349 info->has_variant_id = true;
2350 info->variant_id = g_strdup(server ? "server" : "client");
2351
2352 return info;
2353 }
2354
2355 /*
2356 * Safely get device property. Returned strings are using wide characters.
2357 * Caller is responsible for freeing the buffer.
2358 */
2359 static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2360 PDEVPROPTYPE propType)
2361 {
2362 CONFIGRET cr;
2363 g_autofree LPBYTE buffer = NULL;
2364 ULONG buffer_len = 0;
2365
2366 /* First query for needed space */
2367 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2368 buffer, &buffer_len, 0);
2369 if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2370
2371 slog("failed to get property size, error=0x%lx", cr);
2372 return NULL;
2373 }
2374 buffer = g_new0(BYTE, buffer_len + 1);
2375 cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2376 buffer, &buffer_len, 0);
2377 if (cr != CR_SUCCESS) {
2378 slog("failed to get device property, error=0x%lx", cr);
2379 return NULL;
2380 }
2381 return g_steal_pointer(&buffer);
2382 }
2383
2384 static GStrv ga_get_hardware_ids(DEVINST devInstance)
2385 {
2386 GArray *values = NULL;
2387 DEVPROPTYPE cm_type;
2388 LPWSTR id;
2389 g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2390 &qga_DEVPKEY_Device_HardwareIds, &cm_type);
2391 if (property == NULL) {
2392 slog("failed to get hardware IDs");
2393 return NULL;
2394 }
2395 if (*property == '\0') {
2396 /* empty list */
2397 return NULL;
2398 }
2399 values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2400 for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2401 gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2402 g_array_append_val(values, id8);
2403 }
2404 return (GStrv)g_array_free(values, FALSE);
2405 }
2406
2407 /*
2408 * https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2409 */
2410 #define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4|1B36)&DEV_([0-9A-B]{4})(&|$)"
2411
2412 GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
2413 {
2414 GuestDeviceInfoList *head = NULL, **tail = &head;
2415 HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2416 SP_DEVINFO_DATA dev_info_data;
2417 int i, j;
2418 GError *gerr = NULL;
2419 g_autoptr(GRegex) device_pci_re = NULL;
2420 DEVPROPTYPE cm_type;
2421
2422 device_pci_re = g_regex_new(DEVICE_PCI_RE,
2423 G_REGEX_ANCHORED | G_REGEX_OPTIMIZE, 0,
2424 &gerr);
2425 g_assert(device_pci_re != NULL);
2426
2427 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2428 dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT | DIGCF_ALLCLASSES);
2429 if (dev_info == INVALID_HANDLE_VALUE) {
2430 error_setg(errp, "failed to get device tree");
2431 return NULL;
2432 }
2433
2434 slog("enumerating devices");
2435 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2436 bool skip = true;
2437 g_autofree LPWSTR name = NULL;
2438 g_autofree LPFILETIME date = NULL;
2439 g_autofree LPWSTR version = NULL;
2440 g_auto(GStrv) hw_ids = NULL;
2441 g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2442 g_autofree char *vendor_id = NULL;
2443 g_autofree char *device_id = NULL;
2444
2445 name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2446 &qga_DEVPKEY_NAME, &cm_type);
2447 if (name == NULL) {
2448 slog("failed to get device description");
2449 continue;
2450 }
2451 device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2452 if (device->driver_name == NULL) {
2453 error_setg(errp, "conversion to utf8 failed (driver name)");
2454 return NULL;
2455 }
2456 slog("querying device: %s", device->driver_name);
2457 hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2458 if (hw_ids == NULL) {
2459 continue;
2460 }
2461 for (j = 0; hw_ids[j] != NULL; j++) {
2462 g_autoptr(GMatchInfo) match_info;
2463 GuestDeviceIdPCI *id;
2464 if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2465 continue;
2466 }
2467 skip = false;
2468
2469 vendor_id = g_match_info_fetch(match_info, 1);
2470 device_id = g_match_info_fetch(match_info, 2);
2471
2472 device->id = g_new0(GuestDeviceId, 1);
2473 device->has_id = true;
2474 device->id->type = GUEST_DEVICE_TYPE_PCI;
2475 id = &device->id->u.pci;
2476 id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2477 id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2478
2479 break;
2480 }
2481 if (skip) {
2482 continue;
2483 }
2484
2485 version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2486 &qga_DEVPKEY_Device_DriverVersion, &cm_type);
2487 if (version == NULL) {
2488 slog("failed to get driver version");
2489 continue;
2490 }
2491 device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2492 NULL, NULL);
2493 if (device->driver_version == NULL) {
2494 error_setg(errp, "conversion to utf8 failed (driver version)");
2495 return NULL;
2496 }
2497 device->has_driver_version = true;
2498
2499 date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2500 &qga_DEVPKEY_Device_DriverDate, &cm_type);
2501 if (date == NULL) {
2502 slog("failed to get driver date");
2503 continue;
2504 }
2505 device->driver_date = filetime_to_ns(date);
2506 device->has_driver_date = true;
2507
2508 slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2509 device->driver_name, device->driver_date,
2510 device->driver_version);
2511 QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2512 }
2513
2514 if (dev_info != INVALID_HANDLE_VALUE) {
2515 SetupDiDestroyDeviceInfoList(dev_info);
2516 }
2517 return head;
2518 }
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