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 #include <setupapi.h>
25 #include <cfgmgr32.h>
26 #include <initguid.h>
27 #endif
28 #include <lm.h>
29 #include <wtsapi32.h>
30 #include <wininet.h>
31
32 #include "guest-agent-core.h"
33 #include "vss-win32.h"
34 #include "qga-qapi-commands.h"
35 #include "qapi/error.h"
36 #include "qapi/qmp/qerror.h"
37 #include "qemu/queue.h"
38 #include "qemu/host-utils.h"
39 #include "qemu/base64.h"
40
41 #ifndef SHTDN_REASON_FLAG_PLANNED
42 #define SHTDN_REASON_FLAG_PLANNED 0x80000000
43 #endif
44
45 /* multiple of 100 nanoseconds elapsed between windows baseline
46 * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
47 #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
48 (365 * (1970 - 1601) + \
49 (1970 - 1601) / 4 - 3))
50
51 #define INVALID_SET_FILE_POINTER ((DWORD)-1)
52
53 typedef struct GuestFileHandle {
54 int64_t id;
55 HANDLE fh;
56 QTAILQ_ENTRY(GuestFileHandle) next;
57 } GuestFileHandle;
58
59 static struct {
60 QTAILQ_HEAD(, GuestFileHandle) filehandles;
61 } guest_file_state = {
62 .filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
63 };
64
65 #define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
66
67 typedef struct OpenFlags {
68 const char *forms;
69 DWORD desired_access;
70 DWORD creation_disposition;
71 } OpenFlags;
72 static OpenFlags guest_file_open_modes[] = {
73 {"r", GENERIC_READ, OPEN_EXISTING},
74 {"rb", GENERIC_READ, OPEN_EXISTING},
75 {"w", GENERIC_WRITE, CREATE_ALWAYS},
76 {"wb", GENERIC_WRITE, CREATE_ALWAYS},
77 {"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
78 {"r+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
79 {"rb+", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
80 {"r+b", GENERIC_WRITE|GENERIC_READ, OPEN_EXISTING},
81 {"w+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
82 {"wb+", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
83 {"w+b", GENERIC_WRITE|GENERIC_READ, CREATE_ALWAYS},
84 {"a+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
85 {"ab+", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS },
86 {"a+b", FILE_GENERIC_APPEND|GENERIC_READ, OPEN_ALWAYS }
87 };
88
89 #define debug_error(msg) do { \
90 char *suffix = g_win32_error_message(GetLastError()); \
91 g_debug("%s: %s", (msg), suffix); \
92 g_free(suffix); \
93 } while (0)
94
find_open_flag(const char * mode_str)95 static OpenFlags *find_open_flag(const char *mode_str)
96 {
97 int mode;
98 Error **errp = NULL;
99
100 for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
101 OpenFlags *flags = guest_file_open_modes + mode;
102
103 if (strcmp(flags->forms, mode_str) == 0) {
104 return flags;
105 }
106 }
107
108 error_setg(errp, "invalid file open mode '%s'", mode_str);
109 return NULL;
110 }
111
guest_file_handle_add(HANDLE fh,Error ** errp)112 static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
113 {
114 GuestFileHandle *gfh;
115 int64_t handle;
116
117 handle = ga_get_fd_handle(ga_state, errp);
118 if (handle < 0) {
119 return -1;
120 }
121 gfh = g_new0(GuestFileHandle, 1);
122 gfh->id = handle;
123 gfh->fh = fh;
124 QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
125
126 return handle;
127 }
128
guest_file_handle_find(int64_t id,Error ** errp)129 static GuestFileHandle *guest_file_handle_find(int64_t id, Error **errp)
130 {
131 GuestFileHandle *gfh;
132 QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
133 if (gfh->id == id) {
134 return gfh;
135 }
136 }
137 error_setg(errp, "handle '%" PRId64 "' has not been found", id);
138 return NULL;
139 }
140
handle_set_nonblocking(HANDLE fh)141 static void handle_set_nonblocking(HANDLE fh)
142 {
143 DWORD file_type, pipe_state;
144 file_type = GetFileType(fh);
145 if (file_type != FILE_TYPE_PIPE) {
146 return;
147 }
148 /* If file_type == FILE_TYPE_PIPE, according to MSDN
149 * the specified file is socket or named pipe */
150 if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
151 NULL, NULL, NULL, 0)) {
152 return;
153 }
154 /* The fd is named pipe fd */
155 if (pipe_state & PIPE_NOWAIT) {
156 return;
157 }
158
159 pipe_state |= PIPE_NOWAIT;
160 SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
161 }
162
qmp_guest_file_open(const char * path,bool has_mode,const char * mode,Error ** errp)163 int64_t qmp_guest_file_open(const char *path, bool has_mode,
164 const char *mode, Error **errp)
165 {
166 int64_t fd = -1;
167 HANDLE fh;
168 HANDLE templ_file = NULL;
169 DWORD share_mode = FILE_SHARE_READ;
170 DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
171 LPSECURITY_ATTRIBUTES sa_attr = NULL;
172 OpenFlags *guest_flags;
173 GError *gerr = NULL;
174 wchar_t *w_path = NULL;
175
176 if (!has_mode) {
177 mode = "r";
178 }
179 slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
180 guest_flags = find_open_flag(mode);
181 if (guest_flags == NULL) {
182 error_setg(errp, "invalid file open mode");
183 goto done;
184 }
185
186 w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
187 if (!w_path) {
188 goto done;
189 }
190
191 fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
192 guest_flags->creation_disposition, flags_and_attr,
193 templ_file);
194 if (fh == INVALID_HANDLE_VALUE) {
195 error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
196 path);
197 goto done;
198 }
199
200 /* set fd non-blocking to avoid common use cases (like reading from a
201 * named pipe) from hanging the agent
202 */
203 handle_set_nonblocking(fh);
204
205 fd = guest_file_handle_add(fh, errp);
206 if (fd < 0) {
207 CloseHandle(fh);
208 error_setg(errp, "failed to add handle to qmp handle table");
209 goto done;
210 }
211
212 slog("guest-file-open, handle: % " PRId64, fd);
213
214 done:
215 if (gerr) {
216 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
217 g_error_free(gerr);
218 }
219 g_free(w_path);
220 return fd;
221 }
222
qmp_guest_file_close(int64_t handle,Error ** errp)223 void qmp_guest_file_close(int64_t handle, Error **errp)
224 {
225 bool ret;
226 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
227 slog("guest-file-close called, handle: %" PRId64, handle);
228 if (gfh == NULL) {
229 return;
230 }
231 ret = CloseHandle(gfh->fh);
232 if (!ret) {
233 error_setg_win32(errp, GetLastError(), "failed close handle");
234 return;
235 }
236
237 QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
238 g_free(gfh);
239 }
240
acquire_privilege(const char * name,Error ** errp)241 static void acquire_privilege(const char *name, Error **errp)
242 {
243 HANDLE token = NULL;
244 TOKEN_PRIVILEGES priv;
245 Error *local_err = NULL;
246
247 if (OpenProcessToken(GetCurrentProcess(),
248 TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token))
249 {
250 if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
251 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
252 "no luid for requested privilege");
253 goto out;
254 }
255
256 priv.PrivilegeCount = 1;
257 priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
258
259 if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
260 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
261 "unable to acquire requested privilege");
262 goto out;
263 }
264
265 } else {
266 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
267 "failed to open privilege token");
268 }
269
270 out:
271 if (token) {
272 CloseHandle(token);
273 }
274 error_propagate(errp, local_err);
275 }
276
execute_async(DWORD WINAPI (* func)(LPVOID),LPVOID opaque,Error ** errp)277 static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
278 Error **errp)
279 {
280 Error *local_err = NULL;
281
282 HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
283 if (!thread) {
284 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
285 "failed to dispatch asynchronous command");
286 error_propagate(errp, local_err);
287 }
288 }
289
qmp_guest_shutdown(bool has_mode,const char * mode,Error ** errp)290 void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp)
291 {
292 Error *local_err = NULL;
293 UINT shutdown_flag = EWX_FORCE;
294
295 slog("guest-shutdown called, mode: %s", mode);
296
297 if (!has_mode || strcmp(mode, "powerdown") == 0) {
298 shutdown_flag |= EWX_POWEROFF;
299 } else if (strcmp(mode, "halt") == 0) {
300 shutdown_flag |= EWX_SHUTDOWN;
301 } else if (strcmp(mode, "reboot") == 0) {
302 shutdown_flag |= EWX_REBOOT;
303 } else {
304 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
305 "halt|powerdown|reboot");
306 return;
307 }
308
309 /* Request a shutdown privilege, but try to shut down the system
310 anyway. */
311 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
312 if (local_err) {
313 error_propagate(errp, local_err);
314 return;
315 }
316
317 if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
318 slog("guest-shutdown failed: %lu", GetLastError());
319 error_setg(errp, QERR_UNDEFINED_ERROR);
320 }
321 }
322
qmp_guest_file_read(int64_t handle,bool has_count,int64_t count,Error ** errp)323 GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
324 int64_t count, Error **errp)
325 {
326 GuestFileRead *read_data = NULL;
327 guchar *buf;
328 HANDLE fh;
329 bool is_ok;
330 DWORD read_count;
331 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
332
333 if (!gfh) {
334 return NULL;
335 }
336 if (!has_count) {
337 count = QGA_READ_COUNT_DEFAULT;
338 } else if (count < 0 || count >= UINT32_MAX) {
339 error_setg(errp, "value '%" PRId64
340 "' is invalid for argument count", count);
341 return NULL;
342 }
343
344 fh = gfh->fh;
345 buf = g_try_malloc0(count + 1);
346 if (!buf) {
347 error_setg(errp,
348 "failed to allocate sufficient memory "
349 "to complete the requested service");
350 return NULL;
351 }
352 is_ok = ReadFile(fh, buf, count, &read_count, NULL);
353 if (!is_ok) {
354 error_setg_win32(errp, GetLastError(), "failed to read file");
355 slog("guest-file-read failed, handle %" PRId64, handle);
356 } else {
357 buf[read_count] = 0;
358 read_data = g_new0(GuestFileRead, 1);
359 read_data->count = (size_t)read_count;
360 read_data->eof = read_count == 0;
361
362 if (read_count != 0) {
363 read_data->buf_b64 = g_base64_encode(buf, read_count);
364 }
365 }
366 g_free(buf);
367
368 return read_data;
369 }
370
qmp_guest_file_write(int64_t handle,const char * buf_b64,bool has_count,int64_t count,Error ** errp)371 GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64,
372 bool has_count, int64_t count,
373 Error **errp)
374 {
375 GuestFileWrite *write_data = NULL;
376 guchar *buf;
377 gsize buf_len;
378 bool is_ok;
379 DWORD write_count;
380 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
381 HANDLE fh;
382
383 if (!gfh) {
384 return NULL;
385 }
386 fh = gfh->fh;
387 buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
388 if (!buf) {
389 return NULL;
390 }
391
392 if (!has_count) {
393 count = buf_len;
394 } else if (count < 0 || count > buf_len) {
395 error_setg(errp, "value '%" PRId64
396 "' is invalid for argument count", count);
397 goto done;
398 }
399
400 is_ok = WriteFile(fh, buf, count, &write_count, NULL);
401 if (!is_ok) {
402 error_setg_win32(errp, GetLastError(), "failed to write to file");
403 slog("guest-file-write-failed, handle: %" PRId64, handle);
404 } else {
405 write_data = g_new0(GuestFileWrite, 1);
406 write_data->count = (size_t) write_count;
407 }
408
409 done:
410 g_free(buf);
411 return write_data;
412 }
413
qmp_guest_file_seek(int64_t handle,int64_t offset,GuestFileWhence * whence_code,Error ** errp)414 GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
415 GuestFileWhence *whence_code,
416 Error **errp)
417 {
418 GuestFileHandle *gfh;
419 GuestFileSeek *seek_data;
420 HANDLE fh;
421 LARGE_INTEGER new_pos, off_pos;
422 off_pos.QuadPart = offset;
423 BOOL res;
424 int whence;
425 Error *err = NULL;
426
427 gfh = guest_file_handle_find(handle, errp);
428 if (!gfh) {
429 return NULL;
430 }
431
432 /* We stupidly exposed 'whence':'int' in our qapi */
433 whence = ga_parse_whence(whence_code, &err);
434 if (err) {
435 error_propagate(errp, err);
436 return NULL;
437 }
438
439 fh = gfh->fh;
440 res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
441 if (!res) {
442 error_setg_win32(errp, GetLastError(), "failed to seek file");
443 return NULL;
444 }
445 seek_data = g_new0(GuestFileSeek, 1);
446 seek_data->position = new_pos.QuadPart;
447 return seek_data;
448 }
449
qmp_guest_file_flush(int64_t handle,Error ** errp)450 void qmp_guest_file_flush(int64_t handle, Error **errp)
451 {
452 HANDLE fh;
453 GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
454 if (!gfh) {
455 return;
456 }
457
458 fh = gfh->fh;
459 if (!FlushFileBuffers(fh)) {
460 error_setg_win32(errp, GetLastError(), "failed to flush file");
461 }
462 }
463
464 #ifdef CONFIG_QGA_NTDDSCSI
465
466 static GuestDiskBusType win2qemu[] = {
467 [BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
468 [BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
469 [BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
470 [BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
471 [BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
472 [BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
473 [BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
474 [BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
475 [BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
476 [BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
477 [BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
478 [BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
479 [BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
480 [BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
481 #if (_WIN32_WINNT >= 0x0601)
482 [BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
483 [BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
484 #endif
485 };
486
find_bus_type(STORAGE_BUS_TYPE bus)487 static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
488 {
489 if (bus >= ARRAY_SIZE(win2qemu) || (int)bus < 0) {
490 return GUEST_DISK_BUS_TYPE_UNKNOWN;
491 }
492 return win2qemu[(int)bus];
493 }
494
495 DEFINE_GUID(GUID_DEVINTERFACE_DISK,
496 0x53f56307L, 0xb6bf, 0x11d0, 0x94, 0xf2,
497 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
498 DEFINE_GUID(GUID_DEVINTERFACE_STORAGEPORT,
499 0x2accfe60L, 0xc130, 0x11d2, 0xb0, 0x82,
500 0x00, 0xa0, 0xc9, 0x1e, 0xfb, 0x8b);
501
get_pci_info(int number,Error ** errp)502 static GuestPCIAddress *get_pci_info(int number, Error **errp)
503 {
504 HDEVINFO dev_info;
505 SP_DEVINFO_DATA dev_info_data;
506 SP_DEVICE_INTERFACE_DATA dev_iface_data;
507 HANDLE dev_file;
508 int i;
509 GuestPCIAddress *pci = NULL;
510 bool partial_pci = false;
511
512 pci = g_malloc0(sizeof(*pci));
513 pci->domain = -1;
514 pci->slot = -1;
515 pci->function = -1;
516 pci->bus = -1;
517
518 dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
519 DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
520 if (dev_info == INVALID_HANDLE_VALUE) {
521 error_setg_win32(errp, GetLastError(), "failed to get devices tree");
522 goto out;
523 }
524
525 g_debug("enumerating devices");
526 dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
527 dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
528 for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
529 PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
530 STORAGE_DEVICE_NUMBER sdn;
531 char *parent_dev_id = NULL;
532 HDEVINFO parent_dev_info;
533 SP_DEVINFO_DATA parent_dev_info_data;
534 DWORD j;
535 DWORD size = 0;
536
537 g_debug("getting device path");
538 if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
539 &GUID_DEVINTERFACE_DISK, 0,
540 &dev_iface_data)) {
541 while (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
542 pdev_iface_detail_data,
543 size, &size,
544 &dev_info_data)) {
545 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
546 pdev_iface_detail_data = g_malloc(size);
547 pdev_iface_detail_data->cbSize =
548 sizeof(*pdev_iface_detail_data);
549 } else {
550 error_setg_win32(errp, GetLastError(),
551 "failed to get device interfaces");
552 goto free_dev_info;
553 }
554 }
555
556 dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
557 FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
558 NULL);
559 g_free(pdev_iface_detail_data);
560
561 if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
562 NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
563 CloseHandle(dev_file);
564 error_setg_win32(errp, GetLastError(),
565 "failed to get device slot number");
566 goto free_dev_info;
567 }
568
569 CloseHandle(dev_file);
570 if (sdn.DeviceNumber != number) {
571 continue;
572 }
573 } else {
574 error_setg_win32(errp, GetLastError(),
575 "failed to get device interfaces");
576 goto free_dev_info;
577 }
578
579 g_debug("found device slot %d. Getting storage controller", number);
580 {
581 CONFIGRET cr;
582 DEVINST dev_inst, parent_dev_inst;
583 ULONG dev_id_size = 0;
584
585 size = 0;
586 while (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
587 parent_dev_id, size, &size)) {
588 if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
589 parent_dev_id = g_malloc(size);
590 } else {
591 error_setg_win32(errp, GetLastError(),
592 "failed to get device instance ID");
593 goto out;
594 }
595 }
596
597 /*
598 * CM API used here as opposed to
599 * SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
600 * which exports are only available in mingw-w64 6+
601 */
602 cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
603 if (cr != CR_SUCCESS) {
604 g_error("CM_Locate_DevInst failed with code %lx", cr);
605 error_setg_win32(errp, GetLastError(),
606 "failed to get device instance");
607 goto out;
608 }
609 cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
610 if (cr != CR_SUCCESS) {
611 g_error("CM_Get_Parent failed with code %lx", cr);
612 error_setg_win32(errp, GetLastError(),
613 "failed to get parent device instance");
614 goto out;
615 }
616
617 cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
618 if (cr != CR_SUCCESS) {
619 g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
620 error_setg_win32(errp, GetLastError(),
621 "failed to get parent device ID length");
622 goto out;
623 }
624
625 ++dev_id_size;
626 if (dev_id_size > size) {
627 g_free(parent_dev_id);
628 parent_dev_id = g_malloc(dev_id_size);
629 }
630
631 cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
632 0);
633 if (cr != CR_SUCCESS) {
634 g_error("CM_Get_Device_ID failed with code %lx", cr);
635 error_setg_win32(errp, GetLastError(),
636 "failed to get parent device ID");
637 goto out;
638 }
639 }
640
641 g_debug("querying storage controller %s for PCI information",
642 parent_dev_id);
643 parent_dev_info =
644 SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
645 NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
646 g_free(parent_dev_id);
647
648 if (parent_dev_info == INVALID_HANDLE_VALUE) {
649 error_setg_win32(errp, GetLastError(),
650 "failed to get parent device");
651 goto out;
652 }
653
654 parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
655 if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
656 error_setg_win32(errp, GetLastError(),
657 "failed to get parent device data");
658 goto out;
659 }
660
661 for (j = 0;
662 SetupDiEnumDeviceInfo(parent_dev_info, j, &parent_dev_info_data);
663 j++) {
664 DWORD addr, bus, ui_slot, type;
665 int func, slot;
666
667 /*
668 * There is no need to allocate buffer in the next functions. The
669 * size is known and ULONG according to
670 * https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
671 */
672 if (!SetupDiGetDeviceRegistryProperty(
673 parent_dev_info, &parent_dev_info_data, SPDRP_BUSNUMBER,
674 &type, (PBYTE)&bus, size, NULL)) {
675 debug_error("failed to get PCI bus");
676 bus = -1;
677 partial_pci = true;
678 }
679
680 /*
681 * The function retrieves the device's address. This value will be
682 * transformed into device function and number
683 */
684 if (!SetupDiGetDeviceRegistryProperty(
685 parent_dev_info, &parent_dev_info_data, SPDRP_ADDRESS,
686 &type, (PBYTE)&addr, size, NULL)) {
687 debug_error("failed to get PCI address");
688 addr = -1;
689 partial_pci = true;
690 }
691
692 /*
693 * This call returns UINumber of DEVICE_CAPABILITIES structure.
694 * This number is typically a user-perceived slot number.
695 */
696 if (!SetupDiGetDeviceRegistryProperty(
697 parent_dev_info, &parent_dev_info_data, SPDRP_UI_NUMBER,
698 &type, (PBYTE)&ui_slot, size, NULL)) {
699 debug_error("failed to get PCI slot");
700 ui_slot = -1;
701 partial_pci = true;
702 }
703
704 /*
705 * SetupApi gives us the same information as driver with
706 * IoGetDeviceProperty. According to Microsoft:
707 *
708 * FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
709 * DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
710 * SPDRP_ADDRESS is propertyAddress, so we do the same.
711 *
712 * https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
713 */
714 if (partial_pci) {
715 pci->domain = -1;
716 pci->slot = -1;
717 pci->function = -1;
718 pci->bus = -1;
719 continue;
720 } else {
721 func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
722 slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
723 if ((int)ui_slot != slot) {
724 g_debug("mismatch with reported slot values: %d vs %d",
725 (int)ui_slot, slot);
726 }
727 pci->domain = 0;
728 pci->slot = (int)ui_slot;
729 pci->function = func;
730 pci->bus = (int)bus;
731 break;
732 }
733 }
734 SetupDiDestroyDeviceInfoList(parent_dev_info);
735 break;
736 }
737
738 free_dev_info:
739 SetupDiDestroyDeviceInfoList(dev_info);
740 out:
741 return pci;
742 }
743
get_disk_properties(HANDLE vol_h,GuestDiskAddress * disk,Error ** errp)744 static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
745 Error **errp)
746 {
747 STORAGE_PROPERTY_QUERY query;
748 STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
749 DWORD received;
750 ULONG size = sizeof(buf);
751
752 dev_desc = &buf;
753 query.PropertyId = StorageDeviceProperty;
754 query.QueryType = PropertyStandardQuery;
755
756 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
757 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
758 size, &received, NULL)) {
759 error_setg_win32(errp, GetLastError(), "failed to get bus type");
760 return;
761 }
762 disk->bus_type = find_bus_type(dev_desc->BusType);
763 g_debug("bus type %d", disk->bus_type);
764
765 /* Query once more. Now with long enough buffer. */
766 size = dev_desc->Size;
767 dev_desc = g_malloc0(size);
768 if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
769 sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
770 size, &received, NULL)) {
771 error_setg_win32(errp, GetLastError(), "failed to get serial number");
772 g_debug("failed to get serial number");
773 goto out_free;
774 }
775 if (dev_desc->SerialNumberOffset > 0) {
776 const char *serial;
777 size_t len;
778
779 if (dev_desc->SerialNumberOffset >= received) {
780 error_setg(errp, "failed to get serial number: offset outside the buffer");
781 g_debug("serial number offset outside the buffer");
782 goto out_free;
783 }
784 serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
785 len = received - dev_desc->SerialNumberOffset;
786 g_debug("serial number \"%s\"", serial);
787 if (*serial != 0) {
788 disk->serial = g_strndup(serial, len);
789 disk->has_serial = true;
790 }
791 }
792 out_free:
793 g_free(dev_desc);
794
795 return;
796 }
797
get_single_disk_info(int disk_number,GuestDiskAddress * disk,Error ** errp)798 static void get_single_disk_info(int disk_number,
799 GuestDiskAddress *disk, Error **errp)
800 {
801 SCSI_ADDRESS addr, *scsi_ad;
802 DWORD len;
803 HANDLE disk_h;
804 Error *local_err = NULL;
805
806 scsi_ad = &addr;
807
808 g_debug("getting disk info for: %s", disk->dev);
809 disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
810 0, NULL);
811 if (disk_h == INVALID_HANDLE_VALUE) {
812 error_setg_win32(errp, GetLastError(), "failed to open disk");
813 return;
814 }
815
816 get_disk_properties(disk_h, disk, &local_err);
817 if (local_err) {
818 error_propagate(errp, local_err);
819 goto err_close;
820 }
821
822 g_debug("bus type %d", disk->bus_type);
823 /* always set pci_controller as required by schema. get_pci_info() should
824 * report -1 values for non-PCI buses rather than fail. fail the command
825 * if that doesn't hold since that suggests some other unexpected
826 * breakage
827 */
828 disk->pci_controller = get_pci_info(disk_number, &local_err);
829 if (local_err) {
830 error_propagate(errp, local_err);
831 goto err_close;
832 }
833 if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
834 || disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
835 || disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
836 /* This bus type is not supported before Windows Server 2003 SP1 */
837 || disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
838 ) {
839 /* We are able to use the same ioctls for different bus types
840 * according to Microsoft docs
841 * https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
842 g_debug("getting SCSI info");
843 if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
844 sizeof(SCSI_ADDRESS), &len, NULL)) {
845 disk->unit = addr.Lun;
846 disk->target = addr.TargetId;
847 disk->bus = addr.PathId;
848 }
849 /* We do not set error in this case, because we still have enough
850 * information about volume. */
851 }
852
853 err_close:
854 CloseHandle(disk_h);
855 return;
856 }
857
858 /* VSS provider works with volumes, thus there is no difference if
859 * the volume consist of spanned disks. Info about the first disk in the
860 * volume is returned for the spanned disk group (LVM) */
build_guest_disk_info(char * guid,Error ** errp)861 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
862 {
863 Error *local_err = NULL;
864 GuestDiskAddressList *list = NULL, *cur_item = NULL;
865 GuestDiskAddress *disk = NULL;
866 int i;
867 HANDLE vol_h;
868 DWORD size;
869 PVOLUME_DISK_EXTENTS extents = NULL;
870
871 /* strip final backslash */
872 char *name = g_strdup(guid);
873 if (g_str_has_suffix(name, "\\")) {
874 name[strlen(name) - 1] = 0;
875 }
876
877 g_debug("opening %s", name);
878 vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
879 0, NULL);
880 if (vol_h == INVALID_HANDLE_VALUE) {
881 error_setg_win32(errp, GetLastError(), "failed to open volume");
882 goto out;
883 }
884
885 /* Get list of extents */
886 g_debug("getting disk extents");
887 size = sizeof(VOLUME_DISK_EXTENTS);
888 extents = g_malloc0(size);
889 if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
890 0, extents, size, &size, NULL)) {
891 DWORD last_err = GetLastError();
892 if (last_err == ERROR_MORE_DATA) {
893 /* Try once more with big enough buffer */
894 g_free(extents);
895 extents = g_malloc0(size);
896 if (!DeviceIoControl(
897 vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
898 0, extents, size, NULL, NULL)) {
899 error_setg_win32(errp, GetLastError(),
900 "failed to get disk extents");
901 goto out;
902 }
903 } else if (last_err == ERROR_INVALID_FUNCTION) {
904 /* Possibly CD-ROM or a shared drive. Try to pass the volume */
905 g_debug("volume not on disk");
906 disk = g_malloc0(sizeof(GuestDiskAddress));
907 disk->has_dev = true;
908 disk->dev = g_strdup(name);
909 get_single_disk_info(0xffffffff, disk, &local_err);
910 if (local_err) {
911 g_debug("failed to get disk info, ignoring error: %s",
912 error_get_pretty(local_err));
913 error_free(local_err);
914 goto out;
915 }
916 list = g_malloc0(sizeof(*list));
917 list->value = disk;
918 disk = NULL;
919 list->next = NULL;
920 goto out;
921 } else {
922 error_setg_win32(errp, GetLastError(),
923 "failed to get disk extents");
924 goto out;
925 }
926 }
927 g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
928
929 /* Go through each extent */
930 for (i = 0; i < extents->NumberOfDiskExtents; i++) {
931 disk = g_malloc0(sizeof(GuestDiskAddress));
932
933 /* Disk numbers directly correspond to numbers used in UNCs
934 *
935 * See documentation for DISK_EXTENT:
936 * https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
937 *
938 * See also Naming Files, Paths and Namespaces:
939 * https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
940 */
941 disk->has_dev = true;
942 disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
943 extents->Extents[i].DiskNumber);
944
945 get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
946 if (local_err) {
947 error_propagate(errp, local_err);
948 goto out;
949 }
950 cur_item = g_malloc0(sizeof(*list));
951 cur_item->value = disk;
952 disk = NULL;
953 cur_item->next = list;
954 list = cur_item;
955 }
956
957
958 out:
959 if (vol_h != INVALID_HANDLE_VALUE) {
960 CloseHandle(vol_h);
961 }
962 qapi_free_GuestDiskAddress(disk);
963 g_free(extents);
964 g_free(name);
965
966 return list;
967 }
968
969 #else
970
build_guest_disk_info(char * guid,Error ** errp)971 static GuestDiskAddressList *build_guest_disk_info(char *guid, Error **errp)
972 {
973 return NULL;
974 }
975
976 #endif /* CONFIG_QGA_NTDDSCSI */
977
build_guest_fsinfo(char * guid,Error ** errp)978 static GuestFilesystemInfo *build_guest_fsinfo(char *guid, Error **errp)
979 {
980 DWORD info_size;
981 char mnt, *mnt_point;
982 char fs_name[32];
983 char vol_info[MAX_PATH+1];
984 size_t len;
985 uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
986 GuestFilesystemInfo *fs = NULL;
987
988 GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
989 if (GetLastError() != ERROR_MORE_DATA) {
990 error_setg_win32(errp, GetLastError(), "failed to get volume name");
991 return NULL;
992 }
993
994 mnt_point = g_malloc(info_size + 1);
995 if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
996 &info_size)) {
997 error_setg_win32(errp, GetLastError(), "failed to get volume name");
998 goto free;
999 }
1000
1001 len = strlen(mnt_point);
1002 mnt_point[len] = '\\';
1003 mnt_point[len+1] = 0;
1004 if (!GetVolumeInformation(mnt_point, vol_info, sizeof(vol_info), NULL, NULL,
1005 NULL, (LPSTR)&fs_name, sizeof(fs_name))) {
1006 if (GetLastError() != ERROR_NOT_READY) {
1007 error_setg_win32(errp, GetLastError(), "failed to get volume info");
1008 }
1009 goto free;
1010 }
1011
1012 fs_name[sizeof(fs_name) - 1] = 0;
1013 fs = g_malloc(sizeof(*fs));
1014 fs->name = g_strdup(guid);
1015 fs->has_total_bytes = false;
1016 fs->has_used_bytes = false;
1017 if (len == 0) {
1018 fs->mountpoint = g_strdup("System Reserved");
1019 } else {
1020 fs->mountpoint = g_strndup(mnt_point, len);
1021 if (GetDiskFreeSpaceEx(fs->mountpoint,
1022 (PULARGE_INTEGER) & i64FreeBytesToCaller,
1023 (PULARGE_INTEGER) & i64TotalBytes,
1024 (PULARGE_INTEGER) & i64FreeBytes)) {
1025 fs->used_bytes = i64TotalBytes - i64FreeBytes;
1026 fs->total_bytes = i64TotalBytes;
1027 fs->has_total_bytes = true;
1028 fs->has_used_bytes = true;
1029 }
1030 }
1031 fs->type = g_strdup(fs_name);
1032 fs->disk = build_guest_disk_info(guid, errp);
1033 free:
1034 g_free(mnt_point);
1035 return fs;
1036 }
1037
qmp_guest_get_fsinfo(Error ** errp)1038 GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp)
1039 {
1040 HANDLE vol_h;
1041 GuestFilesystemInfoList *new, *ret = NULL;
1042 char guid[256];
1043
1044 vol_h = FindFirstVolume(guid, sizeof(guid));
1045 if (vol_h == INVALID_HANDLE_VALUE) {
1046 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1047 return NULL;
1048 }
1049
1050 do {
1051 GuestFilesystemInfo *info = build_guest_fsinfo(guid, errp);
1052 if (info == NULL) {
1053 continue;
1054 }
1055 new = g_malloc(sizeof(*ret));
1056 new->value = info;
1057 new->next = ret;
1058 ret = new;
1059 } while (FindNextVolume(vol_h, guid, sizeof(guid)));
1060
1061 if (GetLastError() != ERROR_NO_MORE_FILES) {
1062 error_setg_win32(errp, GetLastError(), "failed to find next volume");
1063 }
1064
1065 FindVolumeClose(vol_h);
1066 return ret;
1067 }
1068
1069 /*
1070 * Return status of freeze/thaw
1071 */
qmp_guest_fsfreeze_status(Error ** errp)1072 GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1073 {
1074 if (!vss_initialized()) {
1075 error_setg(errp, QERR_UNSUPPORTED);
1076 return 0;
1077 }
1078
1079 if (ga_is_frozen(ga_state)) {
1080 return GUEST_FSFREEZE_STATUS_FROZEN;
1081 }
1082
1083 return GUEST_FSFREEZE_STATUS_THAWED;
1084 }
1085
1086 /*
1087 * Freeze local file systems using Volume Shadow-copy Service.
1088 * The frozen state is limited for up to 10 seconds by VSS.
1089 */
qmp_guest_fsfreeze_freeze(Error ** errp)1090 int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1091 {
1092 return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1093 }
1094
qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,strList * mountpoints,Error ** errp)1095 int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1096 strList *mountpoints,
1097 Error **errp)
1098 {
1099 int i;
1100 Error *local_err = NULL;
1101
1102 if (!vss_initialized()) {
1103 error_setg(errp, QERR_UNSUPPORTED);
1104 return 0;
1105 }
1106
1107 slog("guest-fsfreeze called");
1108
1109 /* cannot risk guest agent blocking itself on a write in this state */
1110 ga_set_frozen(ga_state);
1111
1112 qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1113 if (local_err) {
1114 error_propagate(errp, local_err);
1115 goto error;
1116 }
1117
1118 return i;
1119
1120 error:
1121 local_err = NULL;
1122 qmp_guest_fsfreeze_thaw(&local_err);
1123 if (local_err) {
1124 g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1125 error_free(local_err);
1126 }
1127 return 0;
1128 }
1129
1130 /*
1131 * Thaw local file systems using Volume Shadow-copy Service.
1132 */
qmp_guest_fsfreeze_thaw(Error ** errp)1133 int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1134 {
1135 int i;
1136
1137 if (!vss_initialized()) {
1138 error_setg(errp, QERR_UNSUPPORTED);
1139 return 0;
1140 }
1141
1142 qga_vss_fsfreeze(&i, false, NULL, errp);
1143
1144 ga_unset_frozen(ga_state);
1145 return i;
1146 }
1147
guest_fsfreeze_cleanup(void)1148 static void guest_fsfreeze_cleanup(void)
1149 {
1150 Error *err = NULL;
1151
1152 if (!vss_initialized()) {
1153 return;
1154 }
1155
1156 if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1157 qmp_guest_fsfreeze_thaw(&err);
1158 if (err) {
1159 slog("failed to clean up frozen filesystems: %s",
1160 error_get_pretty(err));
1161 error_free(err);
1162 }
1163 }
1164
1165 vss_deinit(true);
1166 }
1167
1168 /*
1169 * Walk list of mounted file systems in the guest, and discard unused
1170 * areas.
1171 */
1172 GuestFilesystemTrimResponse *
qmp_guest_fstrim(bool has_minimum,int64_t minimum,Error ** errp)1173 qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1174 {
1175 GuestFilesystemTrimResponse *resp;
1176 HANDLE handle;
1177 WCHAR guid[MAX_PATH] = L"";
1178 OSVERSIONINFO osvi;
1179 BOOL win8_or_later;
1180
1181 ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1182 osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1183 GetVersionEx(&osvi);
1184 win8_or_later = (osvi.dwMajorVersion > 6 ||
1185 ((osvi.dwMajorVersion == 6) &&
1186 (osvi.dwMinorVersion >= 2)));
1187 if (!win8_or_later) {
1188 error_setg(errp, "fstrim is only supported for Win8+");
1189 return NULL;
1190 }
1191
1192 handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1193 if (handle == INVALID_HANDLE_VALUE) {
1194 error_setg_win32(errp, GetLastError(), "failed to find any volume");
1195 return NULL;
1196 }
1197
1198 resp = g_new0(GuestFilesystemTrimResponse, 1);
1199
1200 do {
1201 GuestFilesystemTrimResult *res;
1202 GuestFilesystemTrimResultList *list;
1203 PWCHAR uc_path;
1204 DWORD char_count = 0;
1205 char *path, *out;
1206 GError *gerr = NULL;
1207 gchar * argv[4];
1208
1209 GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1210
1211 if (GetLastError() != ERROR_MORE_DATA) {
1212 continue;
1213 }
1214 if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1215 continue;
1216 }
1217
1218 uc_path = g_malloc(sizeof(WCHAR) * char_count);
1219 if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1220 &char_count) || !*uc_path) {
1221 /* strange, but this condition could be faced even with size == 2 */
1222 g_free(uc_path);
1223 continue;
1224 }
1225
1226 res = g_new0(GuestFilesystemTrimResult, 1);
1227
1228 path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1229
1230 g_free(uc_path);
1231
1232 if (!path) {
1233 res->has_error = true;
1234 res->error = g_strdup(gerr->message);
1235 g_error_free(gerr);
1236 break;
1237 }
1238
1239 res->path = path;
1240
1241 list = g_new0(GuestFilesystemTrimResultList, 1);
1242 list->value = res;
1243 list->next = resp->paths;
1244
1245 resp->paths = list;
1246
1247 memset(argv, 0, sizeof(argv));
1248 argv[0] = (gchar *)"defrag.exe";
1249 argv[1] = (gchar *)"/L";
1250 argv[2] = path;
1251
1252 if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1253 &out /* stdout */, NULL /* stdin */,
1254 NULL, &gerr)) {
1255 res->has_error = true;
1256 res->error = g_strdup(gerr->message);
1257 g_error_free(gerr);
1258 } else {
1259 /* defrag.exe is UGLY. Exit code is ALWAYS zero.
1260 Error is reported in the output with something like
1261 (x89000020) etc code in the stdout */
1262
1263 int i;
1264 gchar **lines = g_strsplit(out, "\r\n", 0);
1265 g_free(out);
1266
1267 for (i = 0; lines[i] != NULL; i++) {
1268 if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1269 continue;
1270 }
1271 res->has_error = true;
1272 res->error = g_strdup(lines[i]);
1273 break;
1274 }
1275 g_strfreev(lines);
1276 }
1277 } while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1278
1279 FindVolumeClose(handle);
1280 return resp;
1281 }
1282
1283 typedef enum {
1284 GUEST_SUSPEND_MODE_DISK,
1285 GUEST_SUSPEND_MODE_RAM
1286 } GuestSuspendMode;
1287
check_suspend_mode(GuestSuspendMode mode,Error ** errp)1288 static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1289 {
1290 SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1291 Error *local_err = NULL;
1292
1293 ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1294 if (!GetPwrCapabilities(&sys_pwr_caps)) {
1295 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
1296 "failed to determine guest suspend capabilities");
1297 goto out;
1298 }
1299
1300 switch (mode) {
1301 case GUEST_SUSPEND_MODE_DISK:
1302 if (!sys_pwr_caps.SystemS4) {
1303 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
1304 "suspend-to-disk not supported by OS");
1305 }
1306 break;
1307 case GUEST_SUSPEND_MODE_RAM:
1308 if (!sys_pwr_caps.SystemS3) {
1309 error_setg(&local_err, QERR_QGA_COMMAND_FAILED,
1310 "suspend-to-ram not supported by OS");
1311 }
1312 break;
1313 default:
1314 error_setg(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode",
1315 "GuestSuspendMode");
1316 }
1317
1318 out:
1319 error_propagate(errp, local_err);
1320 }
1321
do_suspend(LPVOID opaque)1322 static DWORD WINAPI do_suspend(LPVOID opaque)
1323 {
1324 GuestSuspendMode *mode = opaque;
1325 DWORD ret = 0;
1326
1327 if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1328 slog("failed to suspend guest, %lu", GetLastError());
1329 ret = -1;
1330 }
1331 g_free(mode);
1332 return ret;
1333 }
1334
qmp_guest_suspend_disk(Error ** errp)1335 void qmp_guest_suspend_disk(Error **errp)
1336 {
1337 Error *local_err = NULL;
1338 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1339
1340 *mode = GUEST_SUSPEND_MODE_DISK;
1341 check_suspend_mode(*mode, &local_err);
1342 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1343 execute_async(do_suspend, mode, &local_err);
1344
1345 if (local_err) {
1346 error_propagate(errp, local_err);
1347 g_free(mode);
1348 }
1349 }
1350
qmp_guest_suspend_ram(Error ** errp)1351 void qmp_guest_suspend_ram(Error **errp)
1352 {
1353 Error *local_err = NULL;
1354 GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1355
1356 *mode = GUEST_SUSPEND_MODE_RAM;
1357 check_suspend_mode(*mode, &local_err);
1358 acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1359 execute_async(do_suspend, mode, &local_err);
1360
1361 if (local_err) {
1362 error_propagate(errp, local_err);
1363 g_free(mode);
1364 }
1365 }
1366
qmp_guest_suspend_hybrid(Error ** errp)1367 void qmp_guest_suspend_hybrid(Error **errp)
1368 {
1369 error_setg(errp, QERR_UNSUPPORTED);
1370 }
1371
guest_get_adapters_addresses(Error ** errp)1372 static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp)
1373 {
1374 IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1375 ULONG adptr_addrs_len = 0;
1376 DWORD ret;
1377
1378 /* Call the first time to get the adptr_addrs_len. */
1379 GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1380 NULL, adptr_addrs, &adptr_addrs_len);
1381
1382 adptr_addrs = g_malloc(adptr_addrs_len);
1383 ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1384 NULL, adptr_addrs, &adptr_addrs_len);
1385 if (ret != ERROR_SUCCESS) {
1386 error_setg_win32(errp, ret, "failed to get adapters addresses");
1387 g_free(adptr_addrs);
1388 adptr_addrs = NULL;
1389 }
1390 return adptr_addrs;
1391 }
1392
guest_wctomb_dup(WCHAR * wstr)1393 static char *guest_wctomb_dup(WCHAR *wstr)
1394 {
1395 char *str;
1396 size_t str_size;
1397
1398 str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1399 /* add 1 to str_size for NULL terminator */
1400 str = g_malloc(str_size + 1);
1401 WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1402 return str;
1403 }
1404
guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS * ip_addr,Error ** errp)1405 static char *guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS *ip_addr,
1406 Error **errp)
1407 {
1408 char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1409 DWORD len;
1410 int ret;
1411
1412 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET ||
1413 ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1414 len = sizeof(addr_str);
1415 ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1416 ip_addr->Address.iSockaddrLength,
1417 NULL,
1418 addr_str,
1419 &len);
1420 if (ret != 0) {
1421 error_setg_win32(errp, WSAGetLastError(),
1422 "failed address presentation form conversion");
1423 return NULL;
1424 }
1425 return g_strdup(addr_str);
1426 }
1427 return NULL;
1428 }
1429
guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS * ip_addr)1430 static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1431 {
1432 /* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1433 * field to obtain the prefix.
1434 */
1435 return ip_addr->OnLinkPrefixLength;
1436 }
1437
1438 #define INTERFACE_PATH_BUF_SZ 512
1439
get_interface_index(const char * guid)1440 static DWORD get_interface_index(const char *guid)
1441 {
1442 ULONG index;
1443 DWORD status;
1444 wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1445 snwprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1446 wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1447 status = GetAdapterIndex (wbuf, &index);
1448 if (status != NO_ERROR) {
1449 return (DWORD)~0;
1450 } else {
1451 return index;
1452 }
1453 }
1454
1455 typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1456
guest_get_network_stats(const char * name,GuestNetworkInterfaceStat * stats)1457 static int guest_get_network_stats(const char *name,
1458 GuestNetworkInterfaceStat *stats)
1459 {
1460 OSVERSIONINFO os_ver;
1461
1462 os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1463 GetVersionEx(&os_ver);
1464 if (os_ver.dwMajorVersion >= 6) {
1465 MIB_IF_ROW2 a_mid_ifrow;
1466 GetIfEntry2Func getifentry2_ex;
1467 DWORD if_index = 0;
1468 HMODULE module = GetModuleHandle("iphlpapi");
1469 PVOID func = GetProcAddress(module, "GetIfEntry2");
1470
1471 if (func == NULL) {
1472 return -1;
1473 }
1474
1475 getifentry2_ex = (GetIfEntry2Func)func;
1476 if_index = get_interface_index(name);
1477 if (if_index == (DWORD)~0) {
1478 return -1;
1479 }
1480
1481 memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1482 a_mid_ifrow.InterfaceIndex = if_index;
1483 if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1484 stats->rx_bytes = a_mid_ifrow.InOctets;
1485 stats->rx_packets = a_mid_ifrow.InUcastPkts;
1486 stats->rx_errs = a_mid_ifrow.InErrors;
1487 stats->rx_dropped = a_mid_ifrow.InDiscards;
1488 stats->tx_bytes = a_mid_ifrow.OutOctets;
1489 stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1490 stats->tx_errs = a_mid_ifrow.OutErrors;
1491 stats->tx_dropped = a_mid_ifrow.OutDiscards;
1492 return 0;
1493 }
1494 }
1495 return -1;
1496 }
1497
qmp_guest_network_get_interfaces(Error ** errp)1498 GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp)
1499 {
1500 IP_ADAPTER_ADDRESSES *adptr_addrs, *addr;
1501 IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1502 GuestNetworkInterfaceList *head = NULL, *cur_item = NULL;
1503 GuestIpAddressList *head_addr, *cur_addr;
1504 GuestNetworkInterfaceList *info;
1505 GuestNetworkInterfaceStat *interface_stat = NULL;
1506 GuestIpAddressList *address_item = NULL;
1507 unsigned char *mac_addr;
1508 char *addr_str;
1509 WORD wsa_version;
1510 WSADATA wsa_data;
1511 int ret;
1512
1513 adptr_addrs = guest_get_adapters_addresses(errp);
1514 if (adptr_addrs == NULL) {
1515 return NULL;
1516 }
1517
1518 /* Make WSA APIs available. */
1519 wsa_version = MAKEWORD(2, 2);
1520 ret = WSAStartup(wsa_version, &wsa_data);
1521 if (ret != 0) {
1522 error_setg_win32(errp, ret, "failed socket startup");
1523 goto out;
1524 }
1525
1526 for (addr = adptr_addrs; addr; addr = addr->Next) {
1527 info = g_malloc0(sizeof(*info));
1528
1529 if (cur_item == NULL) {
1530 head = cur_item = info;
1531 } else {
1532 cur_item->next = info;
1533 cur_item = info;
1534 }
1535
1536 info->value = g_malloc0(sizeof(*info->value));
1537 info->value->name = guest_wctomb_dup(addr->FriendlyName);
1538
1539 if (addr->PhysicalAddressLength != 0) {
1540 mac_addr = addr->PhysicalAddress;
1541
1542 info->value->hardware_address =
1543 g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1544 (int) mac_addr[0], (int) mac_addr[1],
1545 (int) mac_addr[2], (int) mac_addr[3],
1546 (int) mac_addr[4], (int) mac_addr[5]);
1547
1548 info->value->has_hardware_address = true;
1549 }
1550
1551 head_addr = NULL;
1552 cur_addr = NULL;
1553 for (ip_addr = addr->FirstUnicastAddress;
1554 ip_addr;
1555 ip_addr = ip_addr->Next) {
1556 addr_str = guest_addr_to_str(ip_addr, errp);
1557 if (addr_str == NULL) {
1558 continue;
1559 }
1560
1561 address_item = g_malloc0(sizeof(*address_item));
1562
1563 if (!cur_addr) {
1564 head_addr = cur_addr = address_item;
1565 } else {
1566 cur_addr->next = address_item;
1567 cur_addr = address_item;
1568 }
1569
1570 address_item->value = g_malloc0(sizeof(*address_item->value));
1571 address_item->value->ip_address = addr_str;
1572 address_item->value->prefix = guest_ip_prefix(ip_addr);
1573 if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1574 address_item->value->ip_address_type =
1575 GUEST_IP_ADDRESS_TYPE_IPV4;
1576 } else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1577 address_item->value->ip_address_type =
1578 GUEST_IP_ADDRESS_TYPE_IPV6;
1579 }
1580 }
1581 if (head_addr) {
1582 info->value->has_ip_addresses = true;
1583 info->value->ip_addresses = head_addr;
1584 }
1585 if (!info->value->has_statistics) {
1586 interface_stat = g_malloc0(sizeof(*interface_stat));
1587 if (guest_get_network_stats(addr->AdapterName,
1588 interface_stat) == -1) {
1589 info->value->has_statistics = false;
1590 g_free(interface_stat);
1591 } else {
1592 info->value->statistics = interface_stat;
1593 info->value->has_statistics = true;
1594 }
1595 }
1596 }
1597 WSACleanup();
1598 out:
1599 g_free(adptr_addrs);
1600 return head;
1601 }
1602
qmp_guest_get_time(Error ** errp)1603 int64_t qmp_guest_get_time(Error **errp)
1604 {
1605 SYSTEMTIME ts = {0};
1606 FILETIME tf;
1607
1608 GetSystemTime(&ts);
1609 if (ts.wYear < 1601 || ts.wYear > 30827) {
1610 error_setg(errp, "Failed to get time");
1611 return -1;
1612 }
1613
1614 if (!SystemTimeToFileTime(&ts, &tf)) {
1615 error_setg(errp, "Failed to convert system time: %d", (int)GetLastError());
1616 return -1;
1617 }
1618
1619 return ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime)
1620 - W32_FT_OFFSET) * 100;
1621 }
1622
qmp_guest_set_time(bool has_time,int64_t time_ns,Error ** errp)1623 void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1624 {
1625 Error *local_err = NULL;
1626 SYSTEMTIME ts;
1627 FILETIME tf;
1628 LONGLONG time;
1629
1630 if (!has_time) {
1631 /* Unfortunately, Windows libraries don't provide an easy way to access
1632 * RTC yet:
1633 *
1634 * https://msdn.microsoft.com/en-us/library/aa908981.aspx
1635 *
1636 * Instead, a workaround is to use the Windows win32tm command to
1637 * resync the time using the Windows Time service.
1638 */
1639 LPVOID msg_buffer;
1640 DWORD ret_flags;
1641
1642 HRESULT hr = system("w32tm /resync /nowait");
1643
1644 if (GetLastError() != 0) {
1645 strerror_s((LPTSTR) & msg_buffer, 0, errno);
1646 error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1647 } else if (hr != 0) {
1648 if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1649 error_setg(errp, "Windows Time service not running on the "
1650 "guest");
1651 } else {
1652 if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER |
1653 FORMAT_MESSAGE_FROM_SYSTEM |
1654 FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1655 (DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1656 SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1657 NULL)) {
1658 error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1659 "t retrieve error message", hr);
1660 } else {
1661 error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1662 (LPCTSTR)msg_buffer);
1663 LocalFree(msg_buffer);
1664 }
1665 }
1666 } else if (!InternetGetConnectedState(&ret_flags, 0)) {
1667 error_setg(errp, "No internet connection on guest, sync not "
1668 "accurate");
1669 }
1670 return;
1671 }
1672
1673 /* Validate time passed by user. */
1674 if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1675 error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1676 return;
1677 }
1678
1679 time = time_ns / 100 + W32_FT_OFFSET;
1680
1681 tf.dwLowDateTime = (DWORD) time;
1682 tf.dwHighDateTime = (DWORD) (time >> 32);
1683
1684 if (!FileTimeToSystemTime(&tf, &ts)) {
1685 error_setg(errp, "Failed to convert system time %d",
1686 (int)GetLastError());
1687 return;
1688 }
1689
1690 acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1691 if (local_err) {
1692 error_propagate(errp, local_err);
1693 return;
1694 }
1695
1696 if (!SetSystemTime(&ts)) {
1697 error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError());
1698 return;
1699 }
1700 }
1701
qmp_guest_get_vcpus(Error ** errp)1702 GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp)
1703 {
1704 PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1705 DWORD length;
1706 GuestLogicalProcessorList *head, **link;
1707 Error *local_err = NULL;
1708 int64_t current;
1709
1710 ptr = pslpi = NULL;
1711 length = 0;
1712 current = 0;
1713 head = NULL;
1714 link = &head;
1715
1716 if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1717 (GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1718 (length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1719 ptr = pslpi = g_malloc0(length);
1720 if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1721 error_setg(&local_err, "Failed to get processor information: %d",
1722 (int)GetLastError());
1723 }
1724 } else {
1725 error_setg(&local_err,
1726 "Failed to get processor information buffer length: %d",
1727 (int)GetLastError());
1728 }
1729
1730 while ((local_err == NULL) && (length > 0)) {
1731 if (pslpi->Relationship == RelationProcessorCore) {
1732 ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1733
1734 while (cpu_bits > 0) {
1735 if (!!(cpu_bits & 1)) {
1736 GuestLogicalProcessor *vcpu;
1737 GuestLogicalProcessorList *entry;
1738
1739 vcpu = g_malloc0(sizeof *vcpu);
1740 vcpu->logical_id = current++;
1741 vcpu->online = true;
1742 vcpu->has_can_offline = true;
1743
1744 entry = g_malloc0(sizeof *entry);
1745 entry->value = vcpu;
1746
1747 *link = entry;
1748 link = &entry->next;
1749 }
1750 cpu_bits >>= 1;
1751 }
1752 }
1753 length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1754 pslpi++; /* next entry */
1755 }
1756
1757 g_free(ptr);
1758
1759 if (local_err == NULL) {
1760 if (head != NULL) {
1761 return head;
1762 }
1763 /* there's no guest with zero VCPUs */
1764 error_setg(&local_err, "Guest reported zero VCPUs");
1765 }
1766
1767 qapi_free_GuestLogicalProcessorList(head);
1768 error_propagate(errp, local_err);
1769 return NULL;
1770 }
1771
qmp_guest_set_vcpus(GuestLogicalProcessorList * vcpus,Error ** errp)1772 int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp)
1773 {
1774 error_setg(errp, QERR_UNSUPPORTED);
1775 return -1;
1776 }
1777
1778 static gchar *
get_net_error_message(gint error)1779 get_net_error_message(gint error)
1780 {
1781 HMODULE module = NULL;
1782 gchar *retval = NULL;
1783 wchar_t *msg = NULL;
1784 int flags;
1785 size_t nchars;
1786
1787 flags = FORMAT_MESSAGE_ALLOCATE_BUFFER |
1788 FORMAT_MESSAGE_IGNORE_INSERTS |
1789 FORMAT_MESSAGE_FROM_SYSTEM;
1790
1791 if (error >= NERR_BASE && error <= MAX_NERR) {
1792 module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1793
1794 if (module != NULL) {
1795 flags |= FORMAT_MESSAGE_FROM_HMODULE;
1796 }
1797 }
1798
1799 FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1800
1801 if (msg != NULL) {
1802 nchars = wcslen(msg);
1803
1804 if (nchars >= 2 &&
1805 msg[nchars - 1] == L'\n' &&
1806 msg[nchars - 2] == L'\r') {
1807 msg[nchars - 2] = L'\0';
1808 }
1809
1810 retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1811
1812 LocalFree(msg);
1813 }
1814
1815 if (module != NULL) {
1816 FreeLibrary(module);
1817 }
1818
1819 return retval;
1820 }
1821
qmp_guest_set_user_password(const char * username,const char * password,bool crypted,Error ** errp)1822 void qmp_guest_set_user_password(const char *username,
1823 const char *password,
1824 bool crypted,
1825 Error **errp)
1826 {
1827 NET_API_STATUS nas;
1828 char *rawpasswddata = NULL;
1829 size_t rawpasswdlen;
1830 wchar_t *user = NULL, *wpass = NULL;
1831 USER_INFO_1003 pi1003 = { 0, };
1832 GError *gerr = NULL;
1833
1834 if (crypted) {
1835 error_setg(errp, QERR_UNSUPPORTED);
1836 return;
1837 }
1838
1839 rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1840 if (!rawpasswddata) {
1841 return;
1842 }
1843 rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1844 rawpasswddata[rawpasswdlen] = '\0';
1845
1846 user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1847 if (!user) {
1848 goto done;
1849 }
1850
1851 wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1852 if (!wpass) {
1853 goto done;
1854 }
1855
1856 pi1003.usri1003_password = wpass;
1857 nas = NetUserSetInfo(NULL, user,
1858 1003, (LPBYTE)&pi1003,
1859 NULL);
1860
1861 if (nas != NERR_Success) {
1862 gchar *msg = get_net_error_message(nas);
1863 error_setg(errp, "failed to set password: %s", msg);
1864 g_free(msg);
1865 }
1866
1867 done:
1868 if (gerr) {
1869 error_setg(errp, QERR_QGA_COMMAND_FAILED, gerr->message);
1870 g_error_free(gerr);
1871 }
1872 g_free(user);
1873 g_free(wpass);
1874 g_free(rawpasswddata);
1875 }
1876
qmp_guest_get_memory_blocks(Error ** errp)1877 GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp)
1878 {
1879 error_setg(errp, QERR_UNSUPPORTED);
1880 return NULL;
1881 }
1882
1883 GuestMemoryBlockResponseList *
qmp_guest_set_memory_blocks(GuestMemoryBlockList * mem_blks,Error ** errp)1884 qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp)
1885 {
1886 error_setg(errp, QERR_UNSUPPORTED);
1887 return NULL;
1888 }
1889
qmp_guest_get_memory_block_info(Error ** errp)1890 GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp)
1891 {
1892 error_setg(errp, QERR_UNSUPPORTED);
1893 return NULL;
1894 }
1895
1896 /* add unsupported commands to the blacklist */
ga_command_blacklist_init(GList * blacklist)1897 GList *ga_command_blacklist_init(GList *blacklist)
1898 {
1899 const char *list_unsupported[] = {
1900 "guest-suspend-hybrid",
1901 "guest-set-vcpus",
1902 "guest-get-memory-blocks", "guest-set-memory-blocks",
1903 "guest-get-memory-block-size", "guest-get-memory-block-info",
1904 NULL};
1905 char **p = (char **)list_unsupported;
1906
1907 while (*p) {
1908 blacklist = g_list_append(blacklist, g_strdup(*p++));
1909 }
1910
1911 if (!vss_init(true)) {
1912 g_debug("vss_init failed, vss commands are going to be disabled");
1913 const char *list[] = {
1914 "guest-get-fsinfo", "guest-fsfreeze-status",
1915 "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL};
1916 p = (char **)list;
1917
1918 while (*p) {
1919 blacklist = g_list_append(blacklist, g_strdup(*p++));
1920 }
1921 }
1922
1923 return blacklist;
1924 }
1925
1926 /* register init/cleanup routines for stateful command groups */
ga_command_state_init(GAState * s,GACommandState * cs)1927 void ga_command_state_init(GAState *s, GACommandState *cs)
1928 {
1929 if (!vss_initialized()) {
1930 ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1931 }
1932 }
1933
1934 /* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
1935 typedef struct _GA_WTSINFOA {
1936 WTS_CONNECTSTATE_CLASS State;
1937 DWORD SessionId;
1938 DWORD IncomingBytes;
1939 DWORD OutgoingBytes;
1940 DWORD IncomingFrames;
1941 DWORD OutgoingFrames;
1942 DWORD IncomingCompressedBytes;
1943 DWORD OutgoingCompressedBy;
1944 CHAR WinStationName[WINSTATIONNAME_LENGTH];
1945 CHAR Domain[DOMAIN_LENGTH];
1946 CHAR UserName[USERNAME_LENGTH + 1];
1947 LARGE_INTEGER ConnectTime;
1948 LARGE_INTEGER DisconnectTime;
1949 LARGE_INTEGER LastInputTime;
1950 LARGE_INTEGER LogonTime;
1951 LARGE_INTEGER CurrentTime;
1952
1953 } GA_WTSINFOA;
1954
qmp_guest_get_users(Error ** err)1955 GuestUserList *qmp_guest_get_users(Error **err)
1956 {
1957 #define QGA_NANOSECONDS 10000000
1958
1959 GHashTable *cache = NULL;
1960 GuestUserList *head = NULL, *cur_item = NULL;
1961
1962 DWORD buffer_size = 0, count = 0, i = 0;
1963 GA_WTSINFOA *info = NULL;
1964 WTS_SESSION_INFOA *entries = NULL;
1965 GuestUserList *item = NULL;
1966 GuestUser *user = NULL;
1967 gpointer value = NULL;
1968 INT64 login = 0;
1969 double login_time = 0;
1970
1971 cache = g_hash_table_new(g_str_hash, g_str_equal);
1972
1973 if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
1974 for (i = 0; i < count; ++i) {
1975 buffer_size = 0;
1976 info = NULL;
1977 if (WTSQuerySessionInformationA(
1978 NULL,
1979 entries[i].SessionId,
1980 WTSSessionInfo,
1981 (LPSTR *)&info,
1982 &buffer_size
1983 )) {
1984
1985 if (strlen(info->UserName) == 0) {
1986 WTSFreeMemory(info);
1987 continue;
1988 }
1989
1990 login = info->LogonTime.QuadPart;
1991 login -= W32_FT_OFFSET;
1992 login_time = ((double)login) / QGA_NANOSECONDS;
1993
1994 if (g_hash_table_contains(cache, info->UserName)) {
1995 value = g_hash_table_lookup(cache, info->UserName);
1996 user = (GuestUser *)value;
1997 if (user->login_time > login_time) {
1998 user->login_time = login_time;
1999 }
2000 } else {
2001 item = g_new0(GuestUserList, 1);
2002 item->value = g_new0(GuestUser, 1);
2003
2004 item->value->user = g_strdup(info->UserName);
2005 item->value->domain = g_strdup(info->Domain);
2006 item->value->has_domain = true;
2007
2008 item->value->login_time = login_time;
2009
2010 g_hash_table_add(cache, item->value->user);
2011
2012 if (!cur_item) {
2013 head = cur_item = item;
2014 } else {
2015 cur_item->next = item;
2016 cur_item = item;
2017 }
2018 }
2019 }
2020 WTSFreeMemory(info);
2021 }
2022 WTSFreeMemory(entries);
2023 }
2024 g_hash_table_destroy(cache);
2025 return head;
2026 }
2027
2028 typedef struct _ga_matrix_lookup_t {
2029 int major;
2030 int minor;
2031 char const *version;
2032 char const *version_id;
2033 } ga_matrix_lookup_t;
2034
2035 static ga_matrix_lookup_t const WIN_VERSION_MATRIX[2][8] = {
2036 {
2037 /* Desktop editions */
2038 { 5, 0, "Microsoft Windows 2000", "2000"},
2039 { 5, 1, "Microsoft Windows XP", "xp"},
2040 { 6, 0, "Microsoft Windows Vista", "vista"},
2041 { 6, 1, "Microsoft Windows 7" "7"},
2042 { 6, 2, "Microsoft Windows 8", "8"},
2043 { 6, 3, "Microsoft Windows 8.1", "8.1"},
2044 {10, 0, "Microsoft Windows 10", "10"},
2045 { 0, 0, 0}
2046 },{
2047 /* Server editions */
2048 { 5, 2, "Microsoft Windows Server 2003", "2003"},
2049 { 6, 0, "Microsoft Windows Server 2008", "2008"},
2050 { 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2051 { 6, 2, "Microsoft Windows Server 2012", "2012"},
2052 { 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2053 { 0, 0, 0},
2054 { 0, 0, 0},
2055 { 0, 0, 0}
2056 }
2057 };
2058
2059 typedef struct _ga_win_10_0_server_t {
2060 int final_build;
2061 char const *version;
2062 char const *version_id;
2063 } ga_win_10_0_server_t;
2064
2065 static ga_win_10_0_server_t const WIN_10_0_SERVER_VERSION_MATRIX[3] = {
2066 {14393, "Microsoft Windows Server 2016", "2016"},
2067 {17763, "Microsoft Windows Server 2019", "2019"},
2068 {0, 0}
2069 };
2070
ga_get_win_version(RTL_OSVERSIONINFOEXW * info,Error ** errp)2071 static void ga_get_win_version(RTL_OSVERSIONINFOEXW *info, Error **errp)
2072 {
2073 typedef NTSTATUS(WINAPI * rtl_get_version_t)(
2074 RTL_OSVERSIONINFOEXW *os_version_info_ex);
2075
2076 info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2077
2078 HMODULE module = GetModuleHandle("ntdll");
2079 PVOID fun = GetProcAddress(module, "RtlGetVersion");
2080 if (fun == NULL) {
2081 error_setg(errp, QERR_QGA_COMMAND_FAILED,
2082 "Failed to get address of RtlGetVersion");
2083 return;
2084 }
2085
2086 rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2087 rtl_get_version(info);
2088 return;
2089 }
2090
ga_get_win_name(OSVERSIONINFOEXW const * os_version,bool id)2091 static char *ga_get_win_name(OSVERSIONINFOEXW const *os_version, bool id)
2092 {
2093 DWORD major = os_version->dwMajorVersion;
2094 DWORD minor = os_version->dwMinorVersion;
2095 DWORD build = os_version->dwBuildNumber;
2096 int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2097 ga_matrix_lookup_t const *table = WIN_VERSION_MATRIX[tbl_idx];
2098 ga_win_10_0_server_t const *win_10_0_table = WIN_10_0_SERVER_VERSION_MATRIX;
2099 while (table->version != NULL) {
2100 if (major == 10 && minor == 0 && tbl_idx) {
2101 while (win_10_0_table->version != NULL) {
2102 if (build <= win_10_0_table->final_build) {
2103 if (id) {
2104 return g_strdup(win_10_0_table->version_id);
2105 } else {
2106 return g_strdup(win_10_0_table->version);
2107 }
2108 }
2109 win_10_0_table++;
2110 }
2111 } else if (major == table->major && minor == table->minor) {
2112 if (id) {
2113 return g_strdup(table->version_id);
2114 } else {
2115 return g_strdup(table->version);
2116 }
2117 }
2118 ++table;
2119 }
2120 slog("failed to lookup Windows version: major=%lu, minor=%lu",
2121 major, minor);
2122 return g_strdup("N/A");
2123 }
2124
ga_get_win_product_name(Error ** errp)2125 static char *ga_get_win_product_name(Error **errp)
2126 {
2127 HKEY key = NULL;
2128 DWORD size = 128;
2129 char *result = g_malloc0(size);
2130 LONG err = ERROR_SUCCESS;
2131
2132 err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2133 "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2134 &key);
2135 if (err != ERROR_SUCCESS) {
2136 error_setg_win32(errp, err, "failed to open registry key");
2137 goto fail;
2138 }
2139
2140 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2141 (LPBYTE)result, &size);
2142 if (err == ERROR_MORE_DATA) {
2143 slog("ProductName longer than expected (%lu bytes), retrying",
2144 size);
2145 g_free(result);
2146 result = NULL;
2147 if (size > 0) {
2148 result = g_malloc0(size);
2149 err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2150 (LPBYTE)result, &size);
2151 }
2152 }
2153 if (err != ERROR_SUCCESS) {
2154 error_setg_win32(errp, err, "failed to retrive ProductName");
2155 goto fail;
2156 }
2157
2158 return result;
2159
2160 fail:
2161 g_free(result);
2162 return NULL;
2163 }
2164
ga_get_current_arch(void)2165 static char *ga_get_current_arch(void)
2166 {
2167 SYSTEM_INFO info;
2168 GetNativeSystemInfo(&info);
2169 char *result = NULL;
2170 switch (info.wProcessorArchitecture) {
2171 case PROCESSOR_ARCHITECTURE_AMD64:
2172 result = g_strdup("x86_64");
2173 break;
2174 case PROCESSOR_ARCHITECTURE_ARM:
2175 result = g_strdup("arm");
2176 break;
2177 case PROCESSOR_ARCHITECTURE_IA64:
2178 result = g_strdup("ia64");
2179 break;
2180 case PROCESSOR_ARCHITECTURE_INTEL:
2181 result = g_strdup("x86");
2182 break;
2183 case PROCESSOR_ARCHITECTURE_UNKNOWN:
2184 default:
2185 slog("unknown processor architecture 0x%0x",
2186 info.wProcessorArchitecture);
2187 result = g_strdup("unknown");
2188 break;
2189 }
2190 return result;
2191 }
2192
qmp_guest_get_osinfo(Error ** errp)2193 GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
2194 {
2195 Error *local_err = NULL;
2196 OSVERSIONINFOEXW os_version = {0};
2197 bool server;
2198 char *product_name;
2199 GuestOSInfo *info;
2200
2201 ga_get_win_version(&os_version, &local_err);
2202 if (local_err) {
2203 error_propagate(errp, local_err);
2204 return NULL;
2205 }
2206
2207 server = os_version.wProductType != VER_NT_WORKSTATION;
2208 product_name = ga_get_win_product_name(&local_err);
2209 if (product_name == NULL) {
2210 error_propagate(errp, local_err);
2211 return NULL;
2212 }
2213
2214 info = g_new0(GuestOSInfo, 1);
2215
2216 info->has_kernel_version = true;
2217 info->kernel_version = g_strdup_printf("%lu.%lu",
2218 os_version.dwMajorVersion,
2219 os_version.dwMinorVersion);
2220 info->has_kernel_release = true;
2221 info->kernel_release = g_strdup_printf("%lu",
2222 os_version.dwBuildNumber);
2223 info->has_machine = true;
2224 info->machine = ga_get_current_arch();
2225
2226 info->has_id = true;
2227 info->id = g_strdup("mswindows");
2228 info->has_name = true;
2229 info->name = g_strdup("Microsoft Windows");
2230 info->has_pretty_name = true;
2231 info->pretty_name = product_name;
2232 info->has_version = true;
2233 info->version = ga_get_win_name(&os_version, false);
2234 info->has_version_id = true;
2235 info->version_id = ga_get_win_name(&os_version, true);
2236 info->has_variant = true;
2237 info->variant = g_strdup(server ? "server" : "client");
2238 info->has_variant_id = true;
2239 info->variant_id = g_strdup(server ? "server" : "client");
2240
2241 return info;
2242 }
2243