commands-win32.c · samitouri/QOSamiQemu

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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	#include <winioctl.h>
22	#include <ntddscsi.h>
23	#include <setupapi.h>
24	#include <cfgmgr32.h>
25	#include <initguid.h>
26	#include <devpropdef.h>
27	#include <lm.h>
28	#include <wtsapi32.h>
29	#include <wininet.h>
30	#include <pdh.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	#include "commands-common.h"
41
42	/*
43	* The following should be in devpkey.h, but it isn't. The key names were
44	* prefixed to avoid (future) name clashes. Once the definitions get into
45	* mingw the following lines can be removed.
46	*/
47	DEFINE_DEVPROPKEY(qga_DEVPKEY_NAME, 0xb725f130, 0x47ef, 0x101a, 0xa5,
48	0xf1, 0x02, 0x60, 0x8c, 0x9e, 0xeb, 0xac, 10);
49	/* DEVPROP_TYPE_STRING */
50	DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_HardwareIds, 0xa45c254e, 0xdf1c,
51	0x4efd, 0x80, 0x20, 0x67, 0xd1, 0x46, 0xa8, 0x50, 0xe0, 3);
52	/* DEVPROP_TYPE_STRING_LIST */
53	DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverDate, 0xa8b865dd, 0x2e3d,
54	0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 2);
55	/* DEVPROP_TYPE_FILETIME */
56	DEFINE_DEVPROPKEY(qga_DEVPKEY_Device_DriverVersion, 0xa8b865dd, 0x2e3d,
57	0x4094, 0xad, 0x97, 0xe5, 0x93, 0xa7, 0xc, 0x75, 0xd6, 3);
58	/* DEVPROP_TYPE_STRING */
59	/* The CM_Get_DevNode_PropertyW prototype is only sometimes in cfgmgr32.h */
60	#ifndef CM_Get_DevNode_Property
61	#pragma GCC diagnostic push
62	#pragma GCC diagnostic ignored "-Wredundant-decls"
63	CMAPI CONFIGRET WINAPI CM_Get_DevNode_PropertyW(
64	DEVINST dnDevInst,
65	CONST DEVPROPKEY * PropertyKey,
66	DEVPROPTYPE * PropertyType,
67	PBYTE PropertyBuffer,
68	PULONG PropertyBufferSize,
69	ULONG ulFlags
70	);
71	#define CM_Get_DevNode_Property CM_Get_DevNode_PropertyW
72	#pragma GCC diagnostic pop
73	#endif
74
75	#ifndef SHTDN_REASON_FLAG_PLANNED
76	#define SHTDN_REASON_FLAG_PLANNED 0x80000000
77	#endif
78
79	/* multiple of 100 nanoseconds elapsed between windows baseline
80	* (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */
81	#define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \
82	(365 * (1970 - 1601) + \
83	(1970 - 1601) / 4 - 3))
84
85	#define INVALID_SET_FILE_POINTER ((DWORD)-1)
86
87	struct GuestFileHandle {
88	int64_t id;
89	HANDLE fh;
90	QTAILQ_ENTRY(GuestFileHandle) next;
91	};
92
93	static struct {
94	QTAILQ_HEAD(, GuestFileHandle) filehandles;
95	} guest_file_state = {
96	.filehandles = QTAILQ_HEAD_INITIALIZER(guest_file_state.filehandles),
97	};
98
99	#define FILE_GENERIC_APPEND (FILE_GENERIC_WRITE & ~FILE_WRITE_DATA)
100
101	typedef struct OpenFlags {
102	const char *forms;
103	DWORD desired_access;
104	DWORD creation_disposition;
105	} OpenFlags;
106	static OpenFlags guest_file_open_modes[] = {
107	{"r", GENERIC_READ, OPEN_EXISTING},
108	{"rb", GENERIC_READ, OPEN_EXISTING},
109	{"w", GENERIC_WRITE, CREATE_ALWAYS},
110	{"wb", GENERIC_WRITE, CREATE_ALWAYS},
111	{"a", FILE_GENERIC_APPEND, OPEN_ALWAYS },
112	{"r+", GENERIC_WRITE \| GENERIC_READ, OPEN_EXISTING},
113	{"rb+", GENERIC_WRITE \| GENERIC_READ, OPEN_EXISTING},
114	{"r+b", GENERIC_WRITE \| GENERIC_READ, OPEN_EXISTING},
115	{"w+", GENERIC_WRITE \| GENERIC_READ, CREATE_ALWAYS},
116	{"wb+", GENERIC_WRITE \| GENERIC_READ, CREATE_ALWAYS},
117	{"w+b", GENERIC_WRITE \| GENERIC_READ, CREATE_ALWAYS},
118	{"a+", FILE_GENERIC_APPEND \| GENERIC_READ, OPEN_ALWAYS },
119	{"ab+", FILE_GENERIC_APPEND \| GENERIC_READ, OPEN_ALWAYS },
120	{"a+b", FILE_GENERIC_APPEND \| GENERIC_READ, OPEN_ALWAYS }
121	};
122
123	/*
124	* We use an exponentially weighted moving average, just like Unix systems do
125	* https://en.wikipedia.org/wiki/Load_(computing)#Unix-style_load_calculation
126	*
127	* These constants serve as the damping factor and are calculated with
128	* 1 / exp(sampling interval in seconds / window size in seconds)
129	*
130	* This formula comes from linux's include/linux/sched/loadavg.h
131	* https://github.com/torvalds/linux/blob/345671ea0f9258f410eb057b9ced9cefbbe5dc78/include/linux/sched/loadavg.h#L20-L23
132	*/
133	#define LOADAVG_FACTOR_1F 0.9200444146293232478931553241
134	#define LOADAVG_FACTOR_5F 0.9834714538216174894737477501
135	#define LOADAVG_FACTOR_15F 0.9944598480048967508795473394
136	/*
137	* The time interval in seconds between taking load counts, same as Linux
138	*/
139	#define LOADAVG_SAMPLING_INTERVAL 5
140
141	double load_avg_1m;
142	double load_avg_5m;
143	double load_avg_15m;
144
145	#define debug_error(msg) do { \
146	char *suffix = g_win32_error_message(GetLastError()); \
147	g_debug("%s: %s", (msg), suffix); \
148	g_free(suffix); \
149	} while (0)
150
151	static OpenFlags find_open_flag(const char mode_str)
152	{
153	int mode;
154	Error **errp = NULL;
155
156	for (mode = 0; mode < ARRAY_SIZE(guest_file_open_modes); ++mode) {
157	OpenFlags *flags = guest_file_open_modes + mode;
158
159	if (strcmp(flags->forms, mode_str) == 0) {
160	return flags;
161	}
162	}
163
164	error_setg(errp, "invalid file open mode '%s'", mode_str);
165	return NULL;
166	}
167
168	static int64_t guest_file_handle_add(HANDLE fh, Error **errp)
169	{
170	GuestFileHandle *gfh;
171	int64_t handle;
172
173	handle = ga_get_fd_handle(ga_state, errp);
174	if (handle < 0) {
175	return -1;
176	}
177	gfh = g_new0(GuestFileHandle, 1);
178	gfh->id = handle;
179	gfh->fh = fh;
180	QTAILQ_INSERT_TAIL(&guest_file_state.filehandles, gfh, next);
181
182	return handle;
183	}
184
185	GuestFileHandle guest_file_handle_find(int64_t id, Error *errp)
186	{
187	GuestFileHandle *gfh;
188	QTAILQ_FOREACH(gfh, &guest_file_state.filehandles, next) {
189	if (gfh->id == id) {
190	return gfh;
191	}
192	}
193	error_setg(errp, "handle '%" PRId64 "' has not been found", id);
194	return NULL;
195	}
196
197	static void handle_set_nonblocking(HANDLE fh)
198	{
199	DWORD file_type, pipe_state;
200	file_type = GetFileType(fh);
201	if (file_type != FILE_TYPE_PIPE) {
202	return;
203	}
204	/* If file_type == FILE_TYPE_PIPE, according to MSDN
205	* the specified file is socket or named pipe */
206	if (!GetNamedPipeHandleState(fh, &pipe_state, NULL,
207	NULL, NULL, NULL, 0)) {
208	return;
209	}
210	/* The fd is named pipe fd */
211	if (pipe_state & PIPE_NOWAIT) {
212	return;
213	}
214
215	pipe_state \|= PIPE_NOWAIT;
216	SetNamedPipeHandleState(fh, &pipe_state, NULL, NULL);
217	}
218
219	int64_t qmp_guest_file_open(const char path, const char mode, Error **errp)
220	{
221	int64_t fd = -1;
222	HANDLE fh;
223	HANDLE templ_file = NULL;
224	DWORD share_mode = FILE_SHARE_READ;
225	DWORD flags_and_attr = FILE_ATTRIBUTE_NORMAL;
226	LPSECURITY_ATTRIBUTES sa_attr = NULL;
227	OpenFlags *guest_flags;
228	GError *gerr = NULL;
229	wchar_t *w_path = NULL;
230
231	if (!mode) {
232	mode = "r";
233	}
234	slog("guest-file-open called, filepath: %s, mode: %s", path, mode);
235	guest_flags = find_open_flag(mode);
236	if (guest_flags == NULL) {
237	error_setg(errp, "invalid file open mode");
238	goto done;
239	}
240
241	w_path = g_utf8_to_utf16(path, -1, NULL, NULL, &gerr);
242	if (!w_path) {
243	error_setg(errp, "can't convert 'path' to UTF-16: %s",
244	gerr->message);
245	g_error_free(gerr);
246	goto done;
247	}
248
249	fh = CreateFileW(w_path, guest_flags->desired_access, share_mode, sa_attr,
250	guest_flags->creation_disposition, flags_and_attr,
251	templ_file);
252	if (fh == INVALID_HANDLE_VALUE) {
253	error_setg_win32(errp, GetLastError(), "failed to open file '%s'",
254	path);
255	goto done;
256	}
257
258	/* set fd non-blocking to avoid common use cases (like reading from a
259	* named pipe) from hanging the agent
260	*/
261	handle_set_nonblocking(fh);
262
263	fd = guest_file_handle_add(fh, errp);
264	if (fd < 0) {
265	CloseHandle(fh);
266	error_setg(errp, "failed to add handle to qmp handle table");
267	goto done;
268	}
269
270	slog("guest-file-open, handle: % " PRId64, fd);
271
272	done:
273	g_free(w_path);
274	return fd;
275	}
276
277	void qmp_guest_file_close(int64_t handle, Error **errp)
278	{
279	bool ret;
280	GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
281	slog("guest-file-close called, handle: %" PRId64, handle);
282	if (gfh == NULL) {
283	return;
284	}
285	ret = CloseHandle(gfh->fh);
286	if (!ret) {
287	error_setg_win32(errp, GetLastError(), "failed close handle");
288	return;
289	}
290
291	QTAILQ_REMOVE(&guest_file_state.filehandles, gfh, next);
292	g_free(gfh);
293	}
294
295	static void acquire_privilege(const char name, Error *errp)
296	{
297	HANDLE token = NULL;
298	TOKEN_PRIVILEGES priv;
299
300	if (OpenProcessToken(GetCurrentProcess(),
301	TOKEN_ADJUST_PRIVILEGES \| TOKEN_QUERY, &token))
302	{
303	if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) {
304	error_setg(errp, "no luid for requested privilege");
305	goto out;
306	}
307
308	priv.PrivilegeCount = 1;
309	priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
310
311	if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) {
312	error_setg(errp, "unable to acquire requested privilege");
313	goto out;
314	}
315
316	} else {
317	error_setg(errp, "failed to open privilege token");
318	}
319
320	out:
321	if (token) {
322	CloseHandle(token);
323	}
324	}
325
326	static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque,
327	Error **errp)
328	{
329	HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL);
330	if (!thread) {
331	error_setg(errp, "failed to dispatch asynchronous command");
332	}
333	}
334
335	void qmp_guest_shutdown(const char mode, Error *errp)
336	{
337	Error *local_err = NULL;
338	UINT shutdown_flag = EWX_FORCE;
339
340	slog("guest-shutdown called, mode: %s", mode);
341
342	if (!mode \|\| strcmp(mode, "powerdown") == 0) {
343	shutdown_flag \|= EWX_POWEROFF;
344	} else if (strcmp(mode, "halt") == 0) {
345	shutdown_flag \|= EWX_SHUTDOWN;
346	} else if (strcmp(mode, "reboot") == 0) {
347	shutdown_flag \|= EWX_REBOOT;
348	} else {
349	error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "mode",
350	"'halt', 'powerdown', or 'reboot'");
351	return;
352	}
353
354	/* Request a shutdown privilege, but try to shut down the system
355	anyway. */
356	acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
357	if (local_err) {
358	error_propagate(errp, local_err);
359	return;
360	}
361
362	if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) {
363	g_autofree gchar *emsg = g_win32_error_message(GetLastError());
364	slog("guest-shutdown failed: %s", emsg);
365	error_setg_win32(errp, GetLastError(), "guest-shutdown failed");
366	}
367	}
368
369	GuestFileRead guest_file_read_unsafe(GuestFileHandle gfh,
370	int64_t count, Error **errp)
371	{
372	GuestFileRead *read_data = NULL;
373	guchar *buf;
374	HANDLE fh = gfh->fh;
375	bool is_ok;
376	DWORD read_count;
377
378	buf = g_malloc0(count + 1);
379	is_ok = ReadFile(fh, buf, count, &read_count, NULL);
380	if (!is_ok) {
381	error_setg_win32(errp, GetLastError(), "failed to read file");
382	} else {
383	buf[read_count] = 0;
384	read_data = g_new0(GuestFileRead, 1);
385	read_data->count = (size_t)read_count;
386	read_data->eof = read_count == 0;
387
388	if (read_count != 0) {
389	read_data->buf_b64 = g_base64_encode(buf, read_count);
390	}
391	}
392	g_free(buf);
393
394	return read_data;
395	}
396
397	GuestFileWrite qmp_guest_file_write(int64_t handle, const char buf_b64,
398	bool has_count, int64_t count,
399	Error **errp)
400	{
401	GuestFileWrite *write_data = NULL;
402	guchar *buf;
403	gsize buf_len;
404	bool is_ok;
405	DWORD write_count;
406	GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
407	HANDLE fh;
408
409	if (!gfh) {
410	return NULL;
411	}
412	fh = gfh->fh;
413	buf = qbase64_decode(buf_b64, -1, &buf_len, errp);
414	if (!buf) {
415	return NULL;
416	}
417
418	if (!has_count) {
419	count = buf_len;
420	} else if (count < 0 \|\| count > buf_len) {
421	error_setg(errp, "value '%" PRId64
422	"' is invalid for argument count", count);
423	goto done;
424	}
425
426	is_ok = WriteFile(fh, buf, count, &write_count, NULL);
427	if (!is_ok) {
428	error_setg_win32(errp, GetLastError(), "failed to write to file");
429	slog("guest-file-write-failed, handle: %" PRId64, handle);
430	} else {
431	write_data = g_new0(GuestFileWrite, 1);
432	write_data->count = (size_t) write_count;
433	}
434
435	done:
436	g_free(buf);
437	return write_data;
438	}
439
440	GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset,
441	GuestFileWhence *whence_code,
442	Error **errp)
443	{
444	GuestFileHandle *gfh;
445	GuestFileSeek *seek_data;
446	HANDLE fh;
447	LARGE_INTEGER new_pos, off_pos;
448	off_pos.QuadPart = offset;
449	BOOL res;
450	int whence;
451	Error *err = NULL;
452
453	gfh = guest_file_handle_find(handle, errp);
454	if (!gfh) {
455	return NULL;
456	}
457
458	/* We stupidly exposed 'whence':'int' in our qapi */
459	whence = ga_parse_whence(whence_code, &err);
460	if (err) {
461	error_propagate(errp, err);
462	return NULL;
463	}
464
465	fh = gfh->fh;
466	res = SetFilePointerEx(fh, off_pos, &new_pos, whence);
467	if (!res) {
468	error_setg_win32(errp, GetLastError(), "failed to seek file");
469	return NULL;
470	}
471	seek_data = g_new0(GuestFileSeek, 1);
472	seek_data->position = new_pos.QuadPart;
473	return seek_data;
474	}
475
476	void qmp_guest_file_flush(int64_t handle, Error **errp)
477	{
478	HANDLE fh;
479	GuestFileHandle *gfh = guest_file_handle_find(handle, errp);
480	if (!gfh) {
481	return;
482	}
483
484	fh = gfh->fh;
485	if (!FlushFileBuffers(fh)) {
486	error_setg_win32(errp, GetLastError(), "failed to flush file");
487	}
488	}
489
490	static GuestDiskBusType win2qemu[] = {
491	[BusTypeUnknown] = GUEST_DISK_BUS_TYPE_UNKNOWN,
492	[BusTypeScsi] = GUEST_DISK_BUS_TYPE_SCSI,
493	[BusTypeAtapi] = GUEST_DISK_BUS_TYPE_IDE,
494	[BusTypeAta] = GUEST_DISK_BUS_TYPE_IDE,
495	[BusType1394] = GUEST_DISK_BUS_TYPE_IEEE1394,
496	[BusTypeSsa] = GUEST_DISK_BUS_TYPE_SSA,
497	[BusTypeFibre] = GUEST_DISK_BUS_TYPE_SSA,
498	[BusTypeUsb] = GUEST_DISK_BUS_TYPE_USB,
499	[BusTypeRAID] = GUEST_DISK_BUS_TYPE_RAID,
500	[BusTypeiScsi] = GUEST_DISK_BUS_TYPE_ISCSI,
501	[BusTypeSas] = GUEST_DISK_BUS_TYPE_SAS,
502	[BusTypeSata] = GUEST_DISK_BUS_TYPE_SATA,
503	[BusTypeSd] = GUEST_DISK_BUS_TYPE_SD,
504	[BusTypeMmc] = GUEST_DISK_BUS_TYPE_MMC,
505	[BusTypeVirtual] = GUEST_DISK_BUS_TYPE_VIRTUAL,
506	[BusTypeFileBackedVirtual] = GUEST_DISK_BUS_TYPE_FILE_BACKED_VIRTUAL,
507	/*
508	* BusTypeSpaces currently is not supported
509	*/
510	[BusTypeSpaces] = GUEST_DISK_BUS_TYPE_UNKNOWN,
511	[BusTypeNvme] = GUEST_DISK_BUS_TYPE_NVME,
512	};
513
514	static GuestDiskBusType find_bus_type(STORAGE_BUS_TYPE bus)
515	{
516	if (bus >= ARRAY_SIZE(win2qemu) \|\| (int)bus < 0) {
517	return GUEST_DISK_BUS_TYPE_UNKNOWN;
518	}
519	return win2qemu[(int)bus];
520	}
521
522	static void get_pci_address_for_device(GuestPCIAddress *pci,
523	HDEVINFO dev_info)
524	{
525	SP_DEVINFO_DATA dev_info_data;
526	DWORD j;
527	DWORD size;
528	bool partial_pci = false;
529
530	dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
531
532	for (j = 0;
533	SetupDiEnumDeviceInfo(dev_info, j, &dev_info_data);
534	j++) {
535	DWORD addr, bus, ui_slot, type;
536	int func, slot;
537	size = sizeof(DWORD);
538
539	/*
540	* There is no need to allocate buffer in the next functions. The
541	* size is known and ULONG according to
542	* https://msdn.microsoft.com/en-us/library/windows/hardware/ff543095(v=vs.85).aspx
543	*/
544	if (!SetupDiGetDeviceRegistryProperty(
545	dev_info, &dev_info_data, SPDRP_BUSNUMBER,
546	&type, (PBYTE)&bus, size, NULL)) {
547	debug_error("failed to get PCI bus");
548	bus = -1;
549	partial_pci = true;
550	}
551
552	/*
553	* The function retrieves the device's address. This value will be
554	* transformed into device function and number
555	*/
556	if (!SetupDiGetDeviceRegistryProperty(
557	dev_info, &dev_info_data, SPDRP_ADDRESS,
558	&type, (PBYTE)&addr, size, NULL)) {
559	debug_error("failed to get PCI address");
560	addr = -1;
561	partial_pci = true;
562	}
563
564	/*
565	* This call returns UINumber of DEVICE_CAPABILITIES structure.
566	* This number is typically a user-perceived slot number.
567	*/
568	if (!SetupDiGetDeviceRegistryProperty(
569	dev_info, &dev_info_data, SPDRP_UI_NUMBER,
570	&type, (PBYTE)&ui_slot, size, NULL)) {
571	debug_error("failed to get PCI slot");
572	ui_slot = -1;
573	partial_pci = true;
574	}
575
576	/*
577	* SetupApi gives us the same information as driver with
578	* IoGetDeviceProperty. According to Microsoft:
579	*
580	* FunctionNumber = (USHORT)((propertyAddress) & 0x0000FFFF)
581	* DeviceNumber = (USHORT)(((propertyAddress) >> 16) & 0x0000FFFF)
582	* SPDRP_ADDRESS is propertyAddress, so we do the same.
583	*
584	* https://docs.microsoft.com/en-us/windows/desktop/api/setupapi/nf-setupapi-setupdigetdeviceregistrypropertya
585	*/
586	if (partial_pci) {
587	pci->domain = -1;
588	pci->slot = -1;
589	pci->function = -1;
590	pci->bus = -1;
591	continue;
592	} else {
593	func = ((int)addr == -1) ? -1 : addr & 0x0000FFFF;
594	slot = ((int)addr == -1) ? -1 : (addr >> 16) & 0x0000FFFF;
595	if ((int)ui_slot != slot) {
596	g_debug("mismatch with reported slot values: %d vs %d",
597	(int)ui_slot, slot);
598	}
599	pci->domain = 0;
600	pci->slot = (int)ui_slot;
601	pci->function = func;
602	pci->bus = (int)bus;
603	return;
604	}
605	}
606	}
607
608	static GuestPCIAddress *get_empty_pci_address(void)
609	{
610	GuestPCIAddress *pci = NULL;
611
612	pci = g_malloc0(sizeof(*pci));
613	pci->domain = -1;
614	pci->slot = -1;
615	pci->function = -1;
616	pci->bus = -1;
617	return pci;
618	}
619
620	static GuestPCIAddress get_pci_info(int number, Error *errp)
621	{
622	HDEVINFO dev_info = INVALID_HANDLE_VALUE;
623	HDEVINFO parent_dev_info = INVALID_HANDLE_VALUE;
624
625	SP_DEVINFO_DATA dev_info_data;
626	SP_DEVICE_INTERFACE_DATA dev_iface_data;
627	HANDLE dev_file;
628	int i;
629	GuestPCIAddress *pci = get_empty_pci_address();
630
631	dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
632	DIGCF_PRESENT \| DIGCF_DEVICEINTERFACE);
633	if (dev_info == INVALID_HANDLE_VALUE) {
634	error_setg_win32(errp, GetLastError(), "failed to get devices tree");
635	goto end;
636	}
637
638	g_debug("enumerating devices");
639	dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
640	dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
641	for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
642	g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA pdev_iface_detail_data = NULL;
643	STORAGE_DEVICE_NUMBER sdn;
644	g_autofree char *parent_dev_id = NULL;
645	SP_DEVINFO_DATA parent_dev_info_data;
646	DWORD size = 0;
647
648	g_debug("getting device path");
649	if (SetupDiEnumDeviceInterfaces(dev_info, &dev_info_data,
650	&GUID_DEVINTERFACE_DISK, 0,
651	&dev_iface_data)) {
652	if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
653	pdev_iface_detail_data,
654	size, &size,
655	&dev_info_data)) {
656	if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
657	pdev_iface_detail_data = g_malloc(size);
658	pdev_iface_detail_data->cbSize =
659	sizeof(*pdev_iface_detail_data);
660	} else {
661	error_setg_win32(errp, GetLastError(),
662	"failed to get device interfaces");
663	goto end;
664	}
665	}
666
667	if (!SetupDiGetDeviceInterfaceDetail(dev_info, &dev_iface_data,
668	pdev_iface_detail_data,
669	size, &size,
670	&dev_info_data)) {
671	// pdev_iface_detail_data already is allocated
672	error_setg_win32(errp, GetLastError(),
673	"failed to get device interfaces");
674	goto end;
675	}
676
677	dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
678	FILE_SHARE_READ, NULL, OPEN_EXISTING, 0,
679	NULL);
680
681	if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
682	NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
683	CloseHandle(dev_file);
684	error_setg_win32(errp, GetLastError(),
685	"failed to get device slot number");
686	goto end;
687	}
688
689	CloseHandle(dev_file);
690	if (sdn.DeviceNumber != number) {
691	continue;
692	}
693	} else {
694	error_setg_win32(errp, GetLastError(),
695	"failed to get device interfaces");
696	goto end;
697	}
698
699	g_debug("found device slot %d. Getting storage controller", number);
700	{
701	CONFIGRET cr;
702	DEVINST dev_inst, parent_dev_inst;
703	ULONG dev_id_size = 0;
704
705	size = 0;
706	if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
707	parent_dev_id, size, &size)) {
708	if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
709	parent_dev_id = g_malloc(size);
710	} else {
711	error_setg_win32(errp, GetLastError(),
712	"failed to get device instance ID");
713	goto end;
714	}
715	}
716
717	if (!SetupDiGetDeviceInstanceId(dev_info, &dev_info_data,
718	parent_dev_id, size, &size)) {
719	// parent_dev_id already is allocated
720	error_setg_win32(errp, GetLastError(),
721	"failed to get device instance ID");
722	goto end;
723	}
724
725	/*
726	* CM API used here as opposed to
727	* SetupDiGetDeviceProperty(..., DEVPKEY_Device_Parent, ...)
728	* which exports are only available in mingw-w64 6+
729	*/
730	cr = CM_Locate_DevInst(&dev_inst, parent_dev_id, 0);
731	if (cr != CR_SUCCESS) {
732	g_error("CM_Locate_DevInst failed with code %lx", cr);
733	error_setg_win32(errp, GetLastError(),
734	"failed to get device instance");
735	goto end;
736	}
737	cr = CM_Get_Parent(&parent_dev_inst, dev_inst, 0);
738	if (cr != CR_SUCCESS) {
739	g_error("CM_Get_Parent failed with code %lx", cr);
740	error_setg_win32(errp, GetLastError(),
741	"failed to get parent device instance");
742	goto end;
743	}
744
745	cr = CM_Get_Device_ID_Size(&dev_id_size, parent_dev_inst, 0);
746	if (cr != CR_SUCCESS) {
747	g_error("CM_Get_Device_ID_Size failed with code %lx", cr);
748	error_setg_win32(errp, GetLastError(),
749	"failed to get parent device ID length");
750	goto end;
751	}
752
753	++dev_id_size;
754	if (dev_id_size > size) {
755	g_free(parent_dev_id);
756	parent_dev_id = g_malloc(dev_id_size);
757	}
758
759	cr = CM_Get_Device_ID(parent_dev_inst, parent_dev_id, dev_id_size,
760	0);
761	if (cr != CR_SUCCESS) {
762	g_error("CM_Get_Device_ID failed with code %lx", cr);
763	error_setg_win32(errp, GetLastError(),
764	"failed to get parent device ID");
765	goto end;
766	}
767	}
768
769	g_debug("querying storage controller %s for PCI information",
770	parent_dev_id);
771	parent_dev_info =
772	SetupDiGetClassDevs(&GUID_DEVINTERFACE_STORAGEPORT, parent_dev_id,
773	NULL, DIGCF_PRESENT \| DIGCF_DEVICEINTERFACE);
774
775	if (parent_dev_info == INVALID_HANDLE_VALUE) {
776	error_setg_win32(errp, GetLastError(),
777	"failed to get parent device");
778	goto end;
779	}
780
781	parent_dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
782	if (!SetupDiEnumDeviceInfo(parent_dev_info, 0, &parent_dev_info_data)) {
783	error_setg_win32(errp, GetLastError(),
784	"failed to get parent device data");
785	goto end;
786	}
787
788	get_pci_address_for_device(pci, parent_dev_info);
789
790	break;
791	}
792
793	end:
794	if (parent_dev_info != INVALID_HANDLE_VALUE) {
795	SetupDiDestroyDeviceInfoList(parent_dev_info);
796	}
797	if (dev_info != INVALID_HANDLE_VALUE) {
798	SetupDiDestroyDeviceInfoList(dev_info);
799	}
800	return pci;
801	}
802
803	static void get_disk_properties(HANDLE vol_h, GuestDiskAddress *disk,
804	Error **errp)
805	{
806	STORAGE_PROPERTY_QUERY query;
807	STORAGE_DEVICE_DESCRIPTOR *dev_desc, buf;
808	DWORD received;
809	ULONG size = sizeof(buf);
810
811	dev_desc = &buf;
812	query.PropertyId = StorageDeviceProperty;
813	query.QueryType = PropertyStandardQuery;
814
815	if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
816	sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
817	size, &received, NULL)) {
818	error_setg_win32(errp, GetLastError(), "failed to get bus type");
819	return;
820	}
821	disk->bus_type = find_bus_type(dev_desc->BusType);
822	g_debug("bus type %d", disk->bus_type);
823
824	/* Query once more. Now with long enough buffer. */
825	size = dev_desc->Size;
826	dev_desc = g_malloc0(size);
827	if (!DeviceIoControl(vol_h, IOCTL_STORAGE_QUERY_PROPERTY, &query,
828	sizeof(STORAGE_PROPERTY_QUERY), dev_desc,
829	size, &received, NULL)) {
830	error_setg_win32(errp, GetLastError(), "failed to get serial number");
831	g_debug("failed to get serial number");
832	goto out_free;
833	}
834	if (dev_desc->SerialNumberOffset > 0) {
835	const char *serial;
836	size_t len;
837
838	if (dev_desc->SerialNumberOffset >= received) {
839	error_setg(errp, "failed to get serial number: offset outside the buffer");
840	g_debug("serial number offset outside the buffer");
841	goto out_free;
842	}
843	serial = (char *)dev_desc + dev_desc->SerialNumberOffset;
844	len = received - dev_desc->SerialNumberOffset;
845	g_debug("serial number \"%s\"", serial);
846	if (*serial != 0) {
847	disk->serial = g_strndup(serial, len);
848	}
849	}
850	out_free:
851	g_free(dev_desc);
852	}
853
854	static void get_single_disk_info(int disk_number,
855	GuestDiskAddress disk, Error *errp)
856	{
857	SCSI_ADDRESS addr, *scsi_ad;
858	DWORD len;
859	HANDLE disk_h;
860	Error *local_err = NULL;
861
862	scsi_ad = &addr;
863
864	g_debug("getting disk info for: %s", disk->dev);
865	disk_h = CreateFile(disk->dev, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
866	0, NULL);
867	if (disk_h == INVALID_HANDLE_VALUE) {
868	error_setg_win32(errp, GetLastError(), "failed to open disk");
869	return;
870	}
871
872	get_disk_properties(disk_h, disk, &local_err);
873	if (local_err) {
874	error_propagate(errp, local_err);
875	goto err_close;
876	}
877
878	g_debug("bus type %d", disk->bus_type);
879	/* always set pci_controller as required by schema. get_pci_info() should
880	* report -1 values for non-PCI buses rather than fail. fail the command
881	* if that doesn't hold since that suggests some other unexpected
882	* breakage
883	*/
884	if (disk->bus_type == GUEST_DISK_BUS_TYPE_USB) {
885	disk->pci_controller = get_empty_pci_address();
886	} else {
887	disk->pci_controller = get_pci_info(disk_number, &local_err);
888	if (local_err) {
889	error_propagate(errp, local_err);
890	goto err_close;
891	}
892	}
893	if (disk->bus_type == GUEST_DISK_BUS_TYPE_SCSI
894	\|\| disk->bus_type == GUEST_DISK_BUS_TYPE_IDE
895	\|\| disk->bus_type == GUEST_DISK_BUS_TYPE_RAID
896	/* This bus type is not supported before Windows Server 2003 SP1 */
897	\|\| disk->bus_type == GUEST_DISK_BUS_TYPE_SAS
898	) {
899	/* We are able to use the same ioctls for different bus types
900	* according to Microsoft docs
901	* https://technet.microsoft.com/en-us/library/ee851589(v=ws.10).aspx */
902	g_debug("getting SCSI info");
903	if (DeviceIoControl(disk_h, IOCTL_SCSI_GET_ADDRESS, NULL, 0, scsi_ad,
904	sizeof(SCSI_ADDRESS), &len, NULL)) {
905	disk->unit = addr.Lun;
906	disk->target = addr.TargetId;
907	disk->bus = addr.PathId;
908	}
909	/* We do not set error in this case, because we still have enough
910	* information about volume. */
911	}
912
913	err_close:
914	CloseHandle(disk_h);
915	}
916
917	/* VSS provider works with volumes, thus there is no difference if
918	* the volume consist of spanned disks. Info about the first disk in the
919	* volume is returned for the spanned disk group (LVM) */
920	static GuestDiskAddressList build_guest_disk_info(char guid, Error **errp)
921	{
922	Error *local_err = NULL;
923	GuestDiskAddressList *list = NULL;
924	GuestDiskAddress *disk = NULL;
925	int i;
926	HANDLE vol_h;
927	DWORD size;
928	PVOLUME_DISK_EXTENTS extents = NULL;
929
930	/* strip final backslash */
931	char *name = g_strdup(guid);
932	if (g_str_has_suffix(name, "\\")) {
933	name[strlen(name) - 1] = 0;
934	}
935
936	g_debug("opening %s", name);
937	vol_h = CreateFile(name, 0, FILE_SHARE_READ, NULL, OPEN_EXISTING,
938	0, NULL);
939	if (vol_h == INVALID_HANDLE_VALUE) {
940	error_setg_win32(errp, GetLastError(), "failed to open volume");
941	goto out;
942	}
943
944	/* Get list of extents */
945	g_debug("getting disk extents");
946	size = sizeof(VOLUME_DISK_EXTENTS);
947	extents = g_malloc0(size);
948	if (!DeviceIoControl(vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
949	0, extents, size, &size, NULL)) {
950	DWORD last_err = GetLastError();
951	if (last_err == ERROR_MORE_DATA) {
952	/* Try once more with big enough buffer */
953	size = sizeof(VOLUME_DISK_EXTENTS) +
954	(sizeof(DISK_EXTENT) * (extents->NumberOfDiskExtents - 1));
955	g_free(extents);
956	extents = g_malloc0(size);
957	if (!DeviceIoControl(
958	vol_h, IOCTL_VOLUME_GET_VOLUME_DISK_EXTENTS, NULL,
959	0, extents, size, NULL, NULL)) {
960	error_setg_win32(errp, GetLastError(),
961	"failed to get disk extents");
962	goto out;
963	}
964	} else if (last_err == ERROR_INVALID_FUNCTION) {
965	/* Possibly CD-ROM or a shared drive. Try to pass the volume */
966	g_debug("volume not on disk");
967	disk = g_new0(GuestDiskAddress, 1);
968	disk->dev = g_strdup(name);
969	get_single_disk_info(0xffffffff, disk, &local_err);
970	if (local_err) {
971	g_debug("failed to get disk info, ignoring error: %s",
972	error_get_pretty(local_err));
973	error_free(local_err);
974	goto out;
975	}
976	QAPI_LIST_PREPEND(list, disk);
977	disk = NULL;
978	goto out;
979	} else {
980	error_setg_win32(errp, GetLastError(),
981	"failed to get disk extents");
982	goto out;
983	}
984	}
985	g_debug("Number of extents: %lu", extents->NumberOfDiskExtents);
986
987	/* Go through each extent */
988	for (i = 0; i < extents->NumberOfDiskExtents; i++) {
989	disk = g_new0(GuestDiskAddress, 1);
990
991	/* Disk numbers directly correspond to numbers used in UNCs
992	*
993	* See documentation for DISK_EXTENT:
994	* https://docs.microsoft.com/en-us/windows/desktop/api/winioctl/ns-winioctl-_disk_extent
995	*
996	* See also Naming Files, Paths and Namespaces:
997	* https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file#win32-device-namespaces
998	*/
999	disk->dev = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1000	extents->Extents[i].DiskNumber);
1001
1002	get_single_disk_info(extents->Extents[i].DiskNumber, disk, &local_err);
1003	if (local_err) {
1004	error_propagate(errp, local_err);
1005	goto out;
1006	}
1007	QAPI_LIST_PREPEND(list, disk);
1008	disk = NULL;
1009	}
1010
1011
1012	out:
1013	if (vol_h != INVALID_HANDLE_VALUE) {
1014	CloseHandle(vol_h);
1015	}
1016	qapi_free_GuestDiskAddress(disk);
1017	g_free(extents);
1018	g_free(name);
1019
1020	return list;
1021	}
1022
1023	GuestDiskInfoList qmp_guest_get_disks(Error *errp)
1024	{
1025	GuestDiskInfoList *ret = NULL;
1026	HDEVINFO dev_info;
1027	SP_DEVICE_INTERFACE_DATA dev_iface_data;
1028	int i;
1029
1030	dev_info = SetupDiGetClassDevs(&GUID_DEVINTERFACE_DISK, 0, 0,
1031	DIGCF_PRESENT \| DIGCF_DEVICEINTERFACE);
1032	if (dev_info == INVALID_HANDLE_VALUE) {
1033	error_setg_win32(errp, GetLastError(), "failed to get device tree");
1034	return NULL;
1035	}
1036
1037	g_debug("enumerating devices");
1038	dev_iface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
1039	for (i = 0;
1040	SetupDiEnumDeviceInterfaces(dev_info, NULL, &GUID_DEVINTERFACE_DISK,
1041	i, &dev_iface_data);
1042	i++) {
1043	GuestDiskAddress *address = NULL;
1044	GuestDiskInfo *disk = NULL;
1045	Error *local_err = NULL;
1046	g_autofree PSP_DEVICE_INTERFACE_DETAIL_DATA
1047	pdev_iface_detail_data = NULL;
1048	STORAGE_DEVICE_NUMBER sdn;
1049	HANDLE dev_file;
1050	DWORD size = 0;
1051	BOOL result;
1052	int attempt;
1053
1054	g_debug(" getting device path");
1055	for (attempt = 0, result = FALSE; attempt < 2 && !result; attempt++) {
1056	result = SetupDiGetDeviceInterfaceDetail(dev_info,
1057	&dev_iface_data, pdev_iface_detail_data, size, &size, NULL);
1058	if (result) {
1059	break;
1060	}
1061	if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) {
1062	pdev_iface_detail_data = g_realloc(pdev_iface_detail_data,
1063	size);
1064	pdev_iface_detail_data->cbSize =
1065	sizeof(*pdev_iface_detail_data);
1066	} else {
1067	g_debug("failed to get device interface details");
1068	break;
1069	}
1070	}
1071	if (!result) {
1072	g_debug("skipping device");
1073	continue;
1074	}
1075
1076	g_debug(" device: %s", pdev_iface_detail_data->DevicePath);
1077	dev_file = CreateFile(pdev_iface_detail_data->DevicePath, 0,
1078	FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
1079	if (!DeviceIoControl(dev_file, IOCTL_STORAGE_GET_DEVICE_NUMBER,
1080	NULL, 0, &sdn, sizeof(sdn), &size, NULL)) {
1081	CloseHandle(dev_file);
1082	debug_error("failed to get storage device number");
1083	continue;
1084	}
1085	CloseHandle(dev_file);
1086
1087	disk = g_new0(GuestDiskInfo, 1);
1088	disk->name = g_strdup_printf("\\\\.\\PhysicalDrive%lu",
1089	sdn.DeviceNumber);
1090
1091	g_debug(" number: %lu", sdn.DeviceNumber);
1092	address = g_new0(GuestDiskAddress, 1);
1093	address->dev = g_strdup(disk->name);
1094	get_single_disk_info(sdn.DeviceNumber, address, &local_err);
1095	if (local_err) {
1096	g_debug("failed to get disk info: %s",
1097	error_get_pretty(local_err));
1098	error_free(local_err);
1099	qapi_free_GuestDiskAddress(address);
1100	address = NULL;
1101	} else {
1102	disk->address = address;
1103	}
1104
1105	QAPI_LIST_PREPEND(ret, disk);
1106	}
1107
1108	SetupDiDestroyDeviceInfoList(dev_info);
1109	return ret;
1110	}
1111
1112	static GuestFilesystemInfo build_guest_fsinfo(char guid, Error **errp)
1113	{
1114	DWORD info_size;
1115	char mnt, *mnt_point;
1116	wchar_t wfs_name[32];
1117	char fs_name[32];
1118	wchar_t vol_info[MAX_PATH + 1];
1119	size_t len;
1120	uint64_t i64FreeBytesToCaller, i64TotalBytes, i64FreeBytes;
1121	GuestFilesystemInfo *fs = NULL;
1122	HANDLE hLocalDiskHandle = INVALID_HANDLE_VALUE;
1123
1124	GetVolumePathNamesForVolumeName(guid, (LPCH)&mnt, 0, &info_size);
1125	if (GetLastError() != ERROR_MORE_DATA) {
1126	error_setg_win32(errp, GetLastError(), "failed to get volume name");
1127	return NULL;
1128	}
1129
1130	mnt_point = g_malloc(info_size + 1);
1131	if (!GetVolumePathNamesForVolumeName(guid, mnt_point, info_size,
1132	&info_size)) {
1133	error_setg_win32(errp, GetLastError(), "failed to get volume name");
1134	goto free;
1135	}
1136
1137	hLocalDiskHandle = CreateFile(guid, 0 , 0, NULL, OPEN_EXISTING,
1138	FILE_ATTRIBUTE_NORMAL \|
1139	FILE_FLAG_BACKUP_SEMANTICS, NULL);
1140	if (INVALID_HANDLE_VALUE == hLocalDiskHandle) {
1141	error_setg_win32(errp, GetLastError(), "failed to get handle for volume");
1142	goto free;
1143	}
1144
1145	len = strlen(mnt_point);
1146	mnt_point[len] = '\\';
1147	mnt_point[len + 1] = 0;
1148
1149	if (!GetVolumeInformationByHandleW(hLocalDiskHandle, vol_info,
1150	sizeof(vol_info), NULL, NULL, NULL,
1151	(LPWSTR) & wfs_name, sizeof(wfs_name))) {
1152	if (GetLastError() != ERROR_NOT_READY) {
1153	error_setg_win32(errp, GetLastError(), "failed to get volume info");
1154	}
1155	goto free;
1156	}
1157
1158	fs = g_malloc(sizeof(*fs));
1159	fs->name = g_strdup(guid);
1160	fs->has_total_bytes = false;
1161	fs->has_total_bytes_privileged = false;
1162	fs->has_used_bytes = false;
1163	if (len == 0) {
1164	fs->mountpoint = g_strdup("System Reserved");
1165	} else {
1166	fs->mountpoint = g_strndup(mnt_point, len);
1167	}
1168	if (GetDiskFreeSpaceEx(fs->name,
1169	(PULARGE_INTEGER) & i64FreeBytesToCaller,
1170	(PULARGE_INTEGER) & i64TotalBytes,
1171	(PULARGE_INTEGER) & i64FreeBytes)) {
1172	fs->used_bytes = i64TotalBytes - i64FreeBytes;
1173	fs->total_bytes = i64TotalBytes;
1174	fs->has_total_bytes = true;
1175	fs->has_used_bytes = true;
1176	}
1177	wcstombs(fs_name, wfs_name, sizeof(wfs_name));
1178	fs->type = g_strdup(fs_name);
1179	fs->disk = build_guest_disk_info(guid, errp);
1180	free:
1181	if (hLocalDiskHandle != INVALID_HANDLE_VALUE) {
1182	CloseHandle(hLocalDiskHandle);
1183	}
1184	g_free(mnt_point);
1185	return fs;
1186	}
1187
1188	GuestFilesystemInfoList qmp_guest_get_fsinfo(Error *errp)
1189	{
1190	HANDLE vol_h;
1191	GuestFilesystemInfoList *ret = NULL;
1192	char guid[256];
1193
1194	vol_h = FindFirstVolume(guid, sizeof(guid));
1195	if (vol_h == INVALID_HANDLE_VALUE) {
1196	error_setg_win32(errp, GetLastError(), "failed to find any volume");
1197	return NULL;
1198	}
1199
1200	do {
1201	Error *local_err = NULL;
1202	GuestFilesystemInfo *info = build_guest_fsinfo(guid, &local_err);
1203	if (local_err) {
1204	g_debug("failed to get filesystem info, ignoring error: %s",
1205	error_get_pretty(local_err));
1206	error_free(local_err);
1207	continue;
1208	}
1209	QAPI_LIST_PREPEND(ret, info);
1210	} while (FindNextVolume(vol_h, guid, sizeof(guid)));
1211
1212	if (GetLastError() != ERROR_NO_MORE_FILES) {
1213	error_setg_win32(errp, GetLastError(), "failed to find next volume");
1214	}
1215
1216	FindVolumeClose(vol_h);
1217	return ret;
1218	}
1219
1220	/*
1221	* Return status of freeze/thaw
1222	*/
1223	GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp)
1224	{
1225	if (!vss_initialized()) {
1226	error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1227	return 0;
1228	}
1229
1230	if (ga_is_frozen(ga_state)) {
1231	return GUEST_FSFREEZE_STATUS_FROZEN;
1232	}
1233
1234	return GUEST_FSFREEZE_STATUS_THAWED;
1235	}
1236
1237	/*
1238	* Freeze local file systems using Volume Shadow-copy Service.
1239	* The frozen state is limited for up to 10 seconds by VSS.
1240	*/
1241	int64_t qmp_guest_fsfreeze_freeze(Error **errp)
1242	{
1243	return qmp_guest_fsfreeze_freeze_list(false, NULL, errp);
1244	}
1245
1246	int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints,
1247	strList *mountpoints,
1248	Error **errp)
1249	{
1250	int i;
1251	Error *local_err = NULL;
1252
1253	if (!vss_initialized()) {
1254	error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1255	return 0;
1256	}
1257
1258	slog("guest-fsfreeze called");
1259
1260	/* cannot risk guest agent blocking itself on a write in this state */
1261	ga_set_frozen(ga_state);
1262
1263	qga_vss_fsfreeze(&i, true, mountpoints, &local_err);
1264	if (local_err) {
1265	error_propagate(errp, local_err);
1266	goto error;
1267	}
1268
1269	return i;
1270
1271	error:
1272	local_err = NULL;
1273	qmp_guest_fsfreeze_thaw(&local_err);
1274	if (local_err) {
1275	g_debug("cleanup thaw: %s", error_get_pretty(local_err));
1276	error_free(local_err);
1277	}
1278	return 0;
1279	}
1280
1281	/*
1282	* Thaw local file systems using Volume Shadow-copy Service.
1283	*/
1284	int64_t qmp_guest_fsfreeze_thaw(Error **errp)
1285	{
1286	int i;
1287
1288	if (!vss_initialized()) {
1289	error_setg(errp, "fsfreeze not possible as VSS failed to initialize");
1290	return 0;
1291	}
1292
1293	qga_vss_fsfreeze(&i, false, NULL, errp);
1294
1295	ga_unset_frozen(ga_state);
1296
1297	slog("guest-fsthaw called");
1298
1299	return i;
1300	}
1301
1302	static void guest_fsfreeze_cleanup(void)
1303	{
1304	Error *err = NULL;
1305
1306	if (!vss_initialized()) {
1307	return;
1308	}
1309
1310	if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) {
1311	qmp_guest_fsfreeze_thaw(&err);
1312	if (err) {
1313	slog("failed to clean up frozen filesystems: %s",
1314	error_get_pretty(err));
1315	error_free(err);
1316	}
1317	}
1318
1319	vss_deinit(true);
1320	}
1321
1322	/*
1323	* Walk list of mounted file systems in the guest, and discard unused
1324	* areas.
1325	*/
1326	GuestFilesystemTrimResponse *
1327	qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp)
1328	{
1329	GuestFilesystemTrimResponse *resp;
1330	HANDLE handle;
1331	WCHAR guid[MAX_PATH] = L"";
1332	OSVERSIONINFO osvi;
1333	BOOL win8_or_later;
1334
1335	ZeroMemory(&osvi, sizeof(OSVERSIONINFO));
1336	osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1337	GetVersionEx(&osvi);
1338	win8_or_later = (osvi.dwMajorVersion > 6 \|\|
1339	((osvi.dwMajorVersion == 6) &&
1340	(osvi.dwMinorVersion >= 2)));
1341	if (!win8_or_later) {
1342	error_setg(errp, "fstrim is only supported for Win8+");
1343	return NULL;
1344	}
1345
1346	handle = FindFirstVolumeW(guid, ARRAYSIZE(guid));
1347	if (handle == INVALID_HANDLE_VALUE) {
1348	error_setg_win32(errp, GetLastError(), "failed to find any volume");
1349	return NULL;
1350	}
1351
1352	resp = g_new0(GuestFilesystemTrimResponse, 1);
1353
1354	do {
1355	GuestFilesystemTrimResult *res;
1356	PWCHAR uc_path;
1357	DWORD char_count = 0;
1358	char path, out;
1359	GError *gerr = NULL;
1360	gchar *argv[4];
1361
1362	GetVolumePathNamesForVolumeNameW(guid, NULL, 0, &char_count);
1363
1364	if (GetLastError() != ERROR_MORE_DATA) {
1365	continue;
1366	}
1367	if (GetDriveTypeW(guid) != DRIVE_FIXED) {
1368	continue;
1369	}
1370
1371	uc_path = g_new(WCHAR, char_count);
1372	if (!GetVolumePathNamesForVolumeNameW(guid, uc_path, char_count,
1373	&char_count) \|\| !*uc_path) {
1374	/* strange, but this condition could be faced even with size == 2 */
1375	g_free(uc_path);
1376	continue;
1377	}
1378
1379	res = g_new0(GuestFilesystemTrimResult, 1);
1380
1381	path = g_utf16_to_utf8(uc_path, char_count, NULL, NULL, &gerr);
1382
1383	g_free(uc_path);
1384
1385	if (!path) {
1386	res->error = g_strdup(gerr->message);
1387	g_error_free(gerr);
1388	break;
1389	}
1390
1391	res->path = path;
1392
1393	QAPI_LIST_PREPEND(resp->paths, res);
1394
1395	memset(argv, 0, sizeof(argv));
1396	argv[0] = (gchar *)"defrag.exe";
1397	argv[1] = (gchar *)"/L";
1398	argv[2] = path;
1399
1400	if (!g_spawn_sync(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
1401	&out /* stdout /, NULL / stdin */,
1402	NULL, &gerr)) {
1403	res->error = g_strdup(gerr->message);
1404	g_error_free(gerr);
1405	} else {
1406	/* defrag.exe is UGLY. Exit code is ALWAYS zero.
1407	Error is reported in the output with something like
1408	(x89000020) etc code in the stdout */
1409
1410	int i;
1411	gchar **lines = g_strsplit(out, "\r\n", 0);
1412	g_free(out);
1413
1414	for (i = 0; lines[i] != NULL; i++) {
1415	if (g_strstr_len(lines[i], -1, "(0x") == NULL) {
1416	continue;
1417	}
1418	res->error = g_strdup(lines[i]);
1419	break;
1420	}
1421	g_strfreev(lines);
1422	}
1423	} while (FindNextVolumeW(handle, guid, ARRAYSIZE(guid)));
1424
1425	FindVolumeClose(handle);
1426	return resp;
1427	}
1428
1429	typedef enum {
1430	GUEST_SUSPEND_MODE_DISK,
1431	GUEST_SUSPEND_MODE_RAM
1432	} GuestSuspendMode;
1433
1434	static void check_suspend_mode(GuestSuspendMode mode, Error **errp)
1435	{
1436	SYSTEM_POWER_CAPABILITIES sys_pwr_caps;
1437
1438	ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps));
1439	if (!GetPwrCapabilities(&sys_pwr_caps)) {
1440	error_setg(errp, "failed to determine guest suspend capabilities");
1441	return;
1442	}
1443
1444	switch (mode) {
1445	case GUEST_SUSPEND_MODE_DISK:
1446	if (!sys_pwr_caps.SystemS4) {
1447	error_setg(errp, "suspend-to-disk not supported by OS");
1448	}
1449	break;
1450	case GUEST_SUSPEND_MODE_RAM:
1451	if (!sys_pwr_caps.SystemS3) {
1452	error_setg(errp, "suspend-to-ram not supported by OS");
1453	}
1454	break;
1455	default:
1456	abort();
1457	}
1458	}
1459
1460	static DWORD WINAPI do_suspend(LPVOID opaque)
1461	{
1462	GuestSuspendMode *mode = opaque;
1463	DWORD ret = 0;
1464
1465	if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) {
1466	g_autofree gchar *emsg = g_win32_error_message(GetLastError());
1467	slog("failed to suspend guest: %s", emsg);
1468	ret = -1;
1469	}
1470	g_free(mode);
1471	return ret;
1472	}
1473
1474	void qmp_guest_suspend_disk(Error **errp)
1475	{
1476	Error *local_err = NULL;
1477	GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1478
1479	*mode = GUEST_SUSPEND_MODE_DISK;
1480	check_suspend_mode(*mode, &local_err);
1481	if (local_err) {
1482	goto out;
1483	}
1484	acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1485	if (local_err) {
1486	goto out;
1487	}
1488	execute_async(do_suspend, mode, &local_err);
1489
1490	out:
1491	if (local_err) {
1492	error_propagate(errp, local_err);
1493	g_free(mode);
1494	}
1495	}
1496
1497	void qmp_guest_suspend_ram(Error **errp)
1498	{
1499	Error *local_err = NULL;
1500	GuestSuspendMode *mode = g_new(GuestSuspendMode, 1);
1501
1502	*mode = GUEST_SUSPEND_MODE_RAM;
1503	check_suspend_mode(*mode, &local_err);
1504	if (local_err) {
1505	goto out;
1506	}
1507	acquire_privilege(SE_SHUTDOWN_NAME, &local_err);
1508	if (local_err) {
1509	goto out;
1510	}
1511	execute_async(do_suspend, mode, &local_err);
1512
1513	out:
1514	if (local_err) {
1515	error_propagate(errp, local_err);
1516	g_free(mode);
1517	}
1518	}
1519
1520	static IP_ADAPTER_ADDRESSES guest_get_adapters_addresses(Error *errp)
1521	{
1522	IP_ADAPTER_ADDRESSES *adptr_addrs = NULL;
1523	ULONG adptr_addrs_len = 0;
1524	DWORD ret;
1525
1526	/* Call the first time to get the adptr_addrs_len. */
1527	GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1528	NULL, adptr_addrs, &adptr_addrs_len);
1529
1530	adptr_addrs = g_malloc(adptr_addrs_len);
1531	ret = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX,
1532	NULL, adptr_addrs, &adptr_addrs_len);
1533	if (ret != ERROR_SUCCESS) {
1534	error_setg_win32(errp, ret, "failed to get adapters addresses");
1535	g_free(adptr_addrs);
1536	adptr_addrs = NULL;
1537	}
1538	return adptr_addrs;
1539	}
1540
1541	static char guest_wctomb_dup(WCHAR wstr)
1542	{
1543	char *str;
1544	size_t str_size;
1545
1546	str_size = WideCharToMultiByte(CP_UTF8, 0, wstr, -1, NULL, 0, NULL, NULL);
1547	/* add 1 to str_size for NULL terminator */
1548	str = g_malloc(str_size + 1);
1549	WideCharToMultiByte(CP_UTF8, 0, wstr, -1, str, str_size, NULL, NULL);
1550	return str;
1551	}
1552
1553	static char guest_addr_to_str(IP_ADAPTER_UNICAST_ADDRESS ip_addr,
1554	Error **errp)
1555	{
1556	char addr_str[INET6_ADDRSTRLEN + INET_ADDRSTRLEN];
1557	DWORD len;
1558	int ret;
1559
1560	if (ip_addr->Address.lpSockaddr->sa_family == AF_INET \|\|
1561	ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1562	len = sizeof(addr_str);
1563	ret = WSAAddressToString(ip_addr->Address.lpSockaddr,
1564	ip_addr->Address.iSockaddrLength,
1565	NULL,
1566	addr_str,
1567	&len);
1568	if (ret != 0) {
1569	error_setg_win32(errp, WSAGetLastError(),
1570	"failed address presentation form conversion");
1571	return NULL;
1572	}
1573	return g_strdup(addr_str);
1574	}
1575	return NULL;
1576	}
1577
1578	static int64_t guest_ip_prefix(IP_ADAPTER_UNICAST_ADDRESS *ip_addr)
1579	{
1580	/* For Windows Vista/2008 and newer, use the OnLinkPrefixLength
1581	* field to obtain the prefix.
1582	*/
1583	return ip_addr->OnLinkPrefixLength;
1584	}
1585
1586	#define INTERFACE_PATH_BUF_SZ 512
1587
1588	static DWORD get_interface_index(const char *guid)
1589	{
1590	ULONG index;
1591	DWORD status;
1592	wchar_t wbuf[INTERFACE_PATH_BUF_SZ];
1593	swprintf(wbuf, INTERFACE_PATH_BUF_SZ, L"\\device\\tcpip_%s", guid);
1594	wbuf[INTERFACE_PATH_BUF_SZ - 1] = 0;
1595	status = GetAdapterIndex (wbuf, &index);
1596	if (status != NO_ERROR) {
1597	return (DWORD)~0;
1598	} else {
1599	return index;
1600	}
1601	}
1602
1603	typedef NETIOAPI_API (WINAPI *GetIfEntry2Func)(PMIB_IF_ROW2 Row);
1604
1605	static int guest_get_network_stats(const char *name,
1606	GuestNetworkInterfaceStat *stats)
1607	{
1608	OSVERSIONINFO os_ver;
1609
1610	os_ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
1611	GetVersionEx(&os_ver);
1612	if (os_ver.dwMajorVersion >= 6) {
1613	MIB_IF_ROW2 a_mid_ifrow;
1614	GetIfEntry2Func getifentry2_ex;
1615	DWORD if_index = 0;
1616	HMODULE module = GetModuleHandle("iphlpapi");
1617	PVOID func = GetProcAddress(module, "GetIfEntry2");
1618
1619	if (func == NULL) {
1620	return -1;
1621	}
1622
1623	getifentry2_ex = (GetIfEntry2Func)func;
1624	if_index = get_interface_index(name);
1625	if (if_index == (DWORD)~0) {
1626	return -1;
1627	}
1628
1629	memset(&a_mid_ifrow, 0, sizeof(a_mid_ifrow));
1630	a_mid_ifrow.InterfaceIndex = if_index;
1631	if (NO_ERROR == getifentry2_ex(&a_mid_ifrow)) {
1632	stats->rx_bytes = a_mid_ifrow.InOctets;
1633	stats->rx_packets = a_mid_ifrow.InUcastPkts;
1634	stats->rx_errs = a_mid_ifrow.InErrors;
1635	stats->rx_dropped = a_mid_ifrow.InDiscards;
1636	stats->tx_bytes = a_mid_ifrow.OutOctets;
1637	stats->tx_packets = a_mid_ifrow.OutUcastPkts;
1638	stats->tx_errs = a_mid_ifrow.OutErrors;
1639	stats->tx_dropped = a_mid_ifrow.OutDiscards;
1640	return 0;
1641	}
1642	}
1643	return -1;
1644	}
1645
1646	GuestNetworkInterfaceList qmp_guest_network_get_interfaces(Error *errp)
1647	{
1648	IP_ADAPTER_ADDRESSES adptr_addrs, addr;
1649	IP_ADAPTER_UNICAST_ADDRESS *ip_addr = NULL;
1650	GuestNetworkInterfaceList head = NULL, *tail = &head;
1651	GuestIpAddressList head_addr, *tail_addr;
1652	GuestNetworkInterface *info;
1653	GuestNetworkInterfaceStat *interface_stat = NULL;
1654	GuestIpAddress *address_item = NULL;
1655	unsigned char *mac_addr;
1656	char *addr_str;
1657	WORD wsa_version;
1658	WSADATA wsa_data;
1659	int ret;
1660
1661	adptr_addrs = guest_get_adapters_addresses(errp);
1662	if (adptr_addrs == NULL) {
1663	return NULL;
1664	}
1665
1666	/* Make WSA APIs available. */
1667	wsa_version = MAKEWORD(2, 2);
1668	ret = WSAStartup(wsa_version, &wsa_data);
1669	if (ret != 0) {
1670	error_setg_win32(errp, ret, "failed socket startup");
1671	goto out;
1672	}
1673
1674	for (addr = adptr_addrs; addr; addr = addr->Next) {
1675	info = g_malloc0(sizeof(*info));
1676
1677	QAPI_LIST_APPEND(tail, info);
1678
1679	info->name = guest_wctomb_dup(addr->FriendlyName);
1680
1681	if (addr->PhysicalAddressLength != 0) {
1682	mac_addr = addr->PhysicalAddress;
1683
1684	info->hardware_address =
1685	g_strdup_printf("%02x:%02x:%02x:%02x:%02x:%02x",
1686	(int) mac_addr[0], (int) mac_addr[1],
1687	(int) mac_addr[2], (int) mac_addr[3],
1688	(int) mac_addr[4], (int) mac_addr[5]);
1689	}
1690
1691	head_addr = NULL;
1692	tail_addr = &head_addr;
1693	for (ip_addr = addr->FirstUnicastAddress;
1694	ip_addr;
1695	ip_addr = ip_addr->Next) {
1696	addr_str = guest_addr_to_str(ip_addr, errp);
1697	if (addr_str == NULL) {
1698	continue;
1699	}
1700
1701	address_item = g_malloc0(sizeof(*address_item));
1702
1703	QAPI_LIST_APPEND(tail_addr, address_item);
1704
1705	address_item->ip_address = addr_str;
1706	address_item->prefix = guest_ip_prefix(ip_addr);
1707	if (ip_addr->Address.lpSockaddr->sa_family == AF_INET) {
1708	address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV4;
1709	} else if (ip_addr->Address.lpSockaddr->sa_family == AF_INET6) {
1710	address_item->ip_address_type = GUEST_IP_ADDRESS_TYPE_IPV6;
1711	}
1712	}
1713	if (head_addr) {
1714	info->has_ip_addresses = true;
1715	info->ip_addresses = head_addr;
1716	}
1717	if (!info->statistics) {
1718	interface_stat = g_malloc0(sizeof(*interface_stat));
1719	if (guest_get_network_stats(addr->AdapterName, interface_stat)
1720	== -1) {
1721	g_free(interface_stat);
1722	} else {
1723	info->statistics = interface_stat;
1724	}
1725	}
1726	}
1727	WSACleanup();
1728	out:
1729	g_free(adptr_addrs);
1730	return head;
1731	}
1732
1733	static int64_t filetime_to_ns(const FILETIME *tf)
1734	{
1735	return ((((int64_t)tf->dwHighDateTime << 32) \| tf->dwLowDateTime)
1736	- W32_FT_OFFSET) * 100;
1737	}
1738
1739	void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp)
1740	{
1741	Error *local_err = NULL;
1742	SYSTEMTIME ts;
1743	FILETIME tf;
1744	LONGLONG time;
1745
1746	if (!has_time) {
1747	/* Unfortunately, Windows libraries don't provide an easy way to access
1748	* RTC yet:
1749	*
1750	* https://msdn.microsoft.com/en-us/library/aa908981.aspx
1751	*
1752	* Instead, a workaround is to use the Windows win32tm command to
1753	* resync the time using the Windows Time service.
1754	*/
1755	LPVOID msg_buffer;
1756	DWORD ret_flags;
1757
1758	HRESULT hr = system("w32tm /resync /nowait");
1759
1760	if (GetLastError() != 0) {
1761	strerror_s((LPTSTR) & msg_buffer, 0, errno);
1762	error_setg(errp, "system(...) failed: %s", (LPCTSTR)msg_buffer);
1763	} else if (hr != 0) {
1764	if (hr == HRESULT_FROM_WIN32(ERROR_SERVICE_NOT_ACTIVE)) {
1765	error_setg(errp, "Windows Time service not running on the "
1766	"guest");
1767	} else {
1768	if (!FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER \|
1769	FORMAT_MESSAGE_FROM_SYSTEM \|
1770	FORMAT_MESSAGE_IGNORE_INSERTS, NULL,
1771	(DWORD)hr, MAKELANGID(LANG_NEUTRAL,
1772	SUBLANG_DEFAULT), (LPTSTR) & msg_buffer, 0,
1773	NULL)) {
1774	error_setg(errp, "w32tm failed with error (0x%lx), couldn'"
1775	"t retrieve error message", hr);
1776	} else {
1777	error_setg(errp, "w32tm failed with error (0x%lx): %s", hr,
1778	(LPCTSTR)msg_buffer);
1779	LocalFree(msg_buffer);
1780	}
1781	}
1782	} else if (!InternetGetConnectedState(&ret_flags, 0)) {
1783	error_setg(errp, "No internet connection on guest, sync not "
1784	"accurate");
1785	}
1786	return;
1787	}
1788
1789	/* Validate time passed by user. */
1790	if (time_ns < 0 \|\| time_ns / 100 > INT64_MAX - W32_FT_OFFSET) {
1791	error_setg(errp, "Time %" PRId64 "is invalid", time_ns);
1792	return;
1793	}
1794
1795	time = time_ns / 100 + W32_FT_OFFSET;
1796
1797	tf.dwLowDateTime = (DWORD) time;
1798	tf.dwHighDateTime = (DWORD) (time >> 32);
1799
1800	if (!FileTimeToSystemTime(&tf, &ts)) {
1801	error_setg_win32(errp, GetLastError(),
1802	"Failed to convert system time");
1803	return;
1804	}
1805
1806	acquire_privilege(SE_SYSTEMTIME_NAME, &local_err);
1807	if (local_err) {
1808	error_propagate(errp, local_err);
1809	return;
1810	}
1811
1812	if (!SetSystemTime(&ts)) {
1813	error_setg_win32(errp, GetLastError(),
1814	"Failed to set time to guest");
1815	return;
1816	}
1817	}
1818
1819	GuestLogicalProcessorList qmp_guest_get_vcpus(Error *errp)
1820	{
1821	PSYSTEM_LOGICAL_PROCESSOR_INFORMATION pslpi, ptr;
1822	DWORD length;
1823	GuestLogicalProcessorList head, *tail;
1824	Error *local_err = NULL;
1825	int64_t current;
1826
1827	ptr = pslpi = NULL;
1828	length = 0;
1829	current = 0;
1830	head = NULL;
1831	tail = &head;
1832
1833	if ((GetLogicalProcessorInformation(pslpi, &length) == FALSE) &&
1834	(GetLastError() == ERROR_INSUFFICIENT_BUFFER) &&
1835	(length > sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION))) {
1836	ptr = pslpi = g_malloc0(length);
1837	if (GetLogicalProcessorInformation(pslpi, &length) == FALSE) {
1838	error_setg_win32(&local_err, GetLastError(),
1839	"Failed to get processor information");
1840	}
1841	} else {
1842	error_setg_win32(&local_err, GetLastError(),
1843	"Failed to get processor information buffer length");
1844	}
1845
1846	while ((local_err == NULL) && (length > 0)) {
1847	if (pslpi->Relationship == RelationProcessorCore) {
1848	ULONG_PTR cpu_bits = pslpi->ProcessorMask;
1849
1850	while (cpu_bits > 0) {
1851	if (!!(cpu_bits & 1)) {
1852	GuestLogicalProcessor *vcpu;
1853
1854	vcpu = g_malloc0(sizeof *vcpu);
1855	vcpu->logical_id = current++;
1856	vcpu->online = true;
1857	vcpu->has_can_offline = true;
1858
1859	QAPI_LIST_APPEND(tail, vcpu);
1860	}
1861	cpu_bits >>= 1;
1862	}
1863	}
1864	length -= sizeof(SYSTEM_LOGICAL_PROCESSOR_INFORMATION);
1865	pslpi++; /* next entry */
1866	}
1867
1868	g_free(ptr);
1869
1870	if (local_err == NULL) {
1871	if (head != NULL) {
1872	return head;
1873	}
1874	/* there's no guest with zero VCPUs */
1875	error_setg(&local_err, "Guest reported zero VCPUs");
1876	}
1877
1878	qapi_free_GuestLogicalProcessorList(head);
1879	error_propagate(errp, local_err);
1880	return NULL;
1881	}
1882
1883	static gchar *
1884	get_net_error_message(gint error)
1885	{
1886	HMODULE module = NULL;
1887	gchar *retval = NULL;
1888	wchar_t *msg = NULL;
1889	int flags;
1890	size_t nchars;
1891
1892	flags = FORMAT_MESSAGE_ALLOCATE_BUFFER \|
1893	FORMAT_MESSAGE_IGNORE_INSERTS \|
1894	FORMAT_MESSAGE_FROM_SYSTEM;
1895
1896	if (error >= NERR_BASE && error <= MAX_NERR) {
1897	module = LoadLibraryExW(L"netmsg.dll", NULL, LOAD_LIBRARY_AS_DATAFILE);
1898
1899	if (module != NULL) {
1900	flags \|= FORMAT_MESSAGE_FROM_HMODULE;
1901	}
1902	}
1903
1904	FormatMessageW(flags, module, error, 0, (LPWSTR)&msg, 0, NULL);
1905
1906	if (msg != NULL) {
1907	nchars = wcslen(msg);
1908
1909	if (nchars >= 2 &&
1910	msg[nchars - 1] == L'\n' &&
1911	msg[nchars - 2] == L'\r') {
1912	msg[nchars - 2] = L'\0';
1913	}
1914
1915	retval = g_utf16_to_utf8(msg, -1, NULL, NULL, NULL);
1916
1917	LocalFree(msg);
1918	}
1919
1920	if (module != NULL) {
1921	FreeLibrary(module);
1922	}
1923
1924	return retval;
1925	}
1926
1927	void qmp_guest_set_user_password(const char *username,
1928	const char *password,
1929	bool crypted,
1930	Error **errp)
1931	{
1932	NET_API_STATUS nas;
1933	char *rawpasswddata = NULL;
1934	size_t rawpasswdlen;
1935	wchar_t user = NULL, wpass = NULL;
1936	USER_INFO_1003 pi1003 = { 0, };
1937	GError *gerr = NULL;
1938
1939	if (crypted) {
1940	error_setg(errp, "'crypted' must be off on this host");
1941	return;
1942	}
1943
1944	rawpasswddata = (char *)qbase64_decode(password, -1, &rawpasswdlen, errp);
1945	if (!rawpasswddata) {
1946	return;
1947	}
1948	rawpasswddata = g_renew(char, rawpasswddata, rawpasswdlen + 1);
1949	rawpasswddata[rawpasswdlen] = '\0';
1950
1951	user = g_utf8_to_utf16(username, -1, NULL, NULL, &gerr);
1952	if (!user) {
1953	error_setg(errp, "can't convert 'username' to UTF-16: %s",
1954	gerr->message);
1955	g_error_free(gerr);
1956	goto done;
1957	}
1958
1959	wpass = g_utf8_to_utf16(rawpasswddata, -1, NULL, NULL, &gerr);
1960	if (!wpass) {
1961	error_setg(errp, "can't convert 'password' to UTF-16: %s",
1962	gerr->message);
1963	g_error_free(gerr);
1964	goto done;
1965	}
1966
1967	pi1003.usri1003_password = wpass;
1968	nas = NetUserSetInfo(NULL, user,
1969	1003, (LPBYTE)&pi1003,
1970	NULL);
1971
1972	if (nas != NERR_Success) {
1973	gchar *msg = get_net_error_message(nas);
1974	error_setg(errp, "failed to set password: %s", msg);
1975	g_free(msg);
1976	}
1977
1978	done:
1979	g_free(user);
1980	g_free(wpass);
1981	g_free(rawpasswddata);
1982	}
1983
1984	/* register init/cleanup routines for stateful command groups */
1985	void ga_command_state_init(GAState s, GACommandState cs)
1986	{
1987	if (!vss_initialized()) {
1988	ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup);
1989	}
1990	}
1991
1992	/* MINGW is missing two fields: IncomingFrames & OutgoingFrames */
1993	typedef struct _GA_WTSINFOA {
1994	WTS_CONNECTSTATE_CLASS State;
1995	DWORD SessionId;
1996	DWORD IncomingBytes;
1997	DWORD OutgoingBytes;
1998	DWORD IncomingFrames;
1999	DWORD OutgoingFrames;
2000	DWORD IncomingCompressedBytes;
2001	DWORD OutgoingCompressedBy;
2002	CHAR WinStationName[WINSTATIONNAME_LENGTH];
2003	CHAR Domain[DOMAIN_LENGTH];
2004	CHAR UserName[USERNAME_LENGTH + 1];
2005	LARGE_INTEGER ConnectTime;
2006	LARGE_INTEGER DisconnectTime;
2007	LARGE_INTEGER LastInputTime;
2008	LARGE_INTEGER LogonTime;
2009	LARGE_INTEGER CurrentTime;
2010
2011	} GA_WTSINFOA;
2012
2013	GuestUserList qmp_guest_get_users(Error *errp)
2014	{
2015	#define QGA_NANOSECONDS 10000000
2016
2017	GHashTable *cache = NULL;
2018	GuestUserList head = NULL, *tail = &head;
2019
2020	DWORD buffer_size = 0, count = 0, i = 0;
2021	GA_WTSINFOA *info = NULL;
2022	WTS_SESSION_INFOA *entries = NULL;
2023	GuestUser *user = NULL;
2024	gpointer value = NULL;
2025	INT64 login = 0;
2026	double login_time = 0;
2027
2028	cache = g_hash_table_new(g_str_hash, g_str_equal);
2029
2030	if (WTSEnumerateSessionsA(NULL, 0, 1, &entries, &count)) {
2031	for (i = 0; i < count; ++i) {
2032	buffer_size = 0;
2033	info = NULL;
2034	if (WTSQuerySessionInformationA(
2035	NULL,
2036	entries[i].SessionId,
2037	WTSSessionInfo,
2038	(LPSTR *)&info,
2039	&buffer_size
2040	)) {
2041
2042	if (strlen(info->UserName) == 0) {
2043	WTSFreeMemory(info);
2044	continue;
2045	}
2046
2047	login = info->LogonTime.QuadPart;
2048	login -= W32_FT_OFFSET;
2049	login_time = ((double)login) / QGA_NANOSECONDS;
2050
2051	if (g_hash_table_contains(cache, info->UserName)) {
2052	value = g_hash_table_lookup(cache, info->UserName);
2053	user = (GuestUser *)value;
2054	if (user->login_time > login_time) {
2055	user->login_time = login_time;
2056	}
2057	} else {
2058	user = g_new0(GuestUser, 1);
2059
2060	user->user = g_strdup(info->UserName);
2061	user->domain = g_strdup(info->Domain);
2062
2063	user->login_time = login_time;
2064
2065	g_hash_table_add(cache, user->user);
2066
2067	QAPI_LIST_APPEND(tail, user);
2068	}
2069	}
2070	WTSFreeMemory(info);
2071	}
2072	WTSFreeMemory(entries);
2073	}
2074	g_hash_table_destroy(cache);
2075	return head;
2076	}
2077
2078	typedef struct _ga_matrix_lookup_t {
2079	int major;
2080	int minor;
2081	const char *version;
2082	const char *version_id;
2083	} ga_matrix_lookup_t;
2084
2085	static const ga_matrix_lookup_t WIN_CLIENT_VERSION_MATRIX[] = {
2086	{ 5, 0, "Microsoft Windows 2000", "2000"},
2087	{ 5, 1, "Microsoft Windows XP", "xp"},
2088	{ 6, 0, "Microsoft Windows Vista", "vista"},
2089	{ 6, 1, "Microsoft Windows 7" "7"},
2090	{ 6, 2, "Microsoft Windows 8", "8"},
2091	{ 6, 3, "Microsoft Windows 8.1", "8.1"},
2092	{ }
2093	};
2094
2095	static const ga_matrix_lookup_t WIN_SERVER_VERSION_MATRIX[] = {
2096	{ 5, 2, "Microsoft Windows Server 2003", "2003"},
2097	{ 6, 0, "Microsoft Windows Server 2008", "2008"},
2098	{ 6, 1, "Microsoft Windows Server 2008 R2", "2008r2"},
2099	{ 6, 2, "Microsoft Windows Server 2012", "2012"},
2100	{ 6, 3, "Microsoft Windows Server 2012 R2", "2012r2"},
2101	{ },
2102	};
2103
2104	typedef struct _ga_win_10_0_t {
2105	int first_build;
2106	const char *version;
2107	const char *version_id;
2108	} ga_win_10_0_t;
2109
2110	static const ga_win_10_0_t WIN_10_0_SERVER_VERSION_MATRIX[] = {
2111	{14393, "Microsoft Windows Server 2016", "2016"},
2112	{17763, "Microsoft Windows Server 2019", "2019"},
2113	{20344, "Microsoft Windows Server 2022", "2022"},
2114	{26040, "Microsoft Windows Server 2025", "2025"},
2115	{ }
2116	};
2117
2118	static const ga_win_10_0_t WIN_10_0_CLIENT_VERSION_MATRIX[] = {
2119	{10240, "Microsoft Windows 10", "10"},
2120	{22000, "Microsoft Windows 11", "11"},
2121	{ }
2122	};
2123
2124	static void ga_get_win_version(RTL_OSVERSIONINFOEXW info, Error *errp)
2125	{
2126	typedef NTSTATUS(WINAPI *rtl_get_version_t)(
2127	RTL_OSVERSIONINFOEXW *os_version_info_ex);
2128
2129	info->dwOSVersionInfoSize = sizeof(RTL_OSVERSIONINFOEXW);
2130
2131	HMODULE module = GetModuleHandle("ntdll");
2132	PVOID fun = GetProcAddress(module, "RtlGetVersion");
2133	if (fun == NULL) {
2134	error_setg(errp, "Failed to get address of RtlGetVersion");
2135	return;
2136	}
2137
2138	rtl_get_version_t rtl_get_version = (rtl_get_version_t)fun;
2139	rtl_get_version(info);
2140	}
2141
2142	static char ga_get_win_name(const OSVERSIONINFOEXW os_version, bool id)
2143	{
2144	DWORD major = os_version->dwMajorVersion;
2145	DWORD minor = os_version->dwMinorVersion;
2146	DWORD build = os_version->dwBuildNumber;
2147	int tbl_idx = (os_version->wProductType != VER_NT_WORKSTATION);
2148	const ga_matrix_lookup_t *table = tbl_idx ?
2149	WIN_SERVER_VERSION_MATRIX : WIN_CLIENT_VERSION_MATRIX;
2150	const ga_win_10_0_t *win_10_0_table = tbl_idx ?
2151	WIN_10_0_SERVER_VERSION_MATRIX : WIN_10_0_CLIENT_VERSION_MATRIX;
2152	const ga_win_10_0_t *win_10_0_version = NULL;
2153	while (table->version != NULL) {
2154	if (major == 10 && minor == 0) {
2155	while (win_10_0_table->version != NULL) {
2156	if (build >= win_10_0_table->first_build) {
2157	win_10_0_version = win_10_0_table;
2158	}
2159	win_10_0_table++;
2160	}
2161	if (win_10_0_table) {
2162	if (id) {
2163	return g_strdup(win_10_0_version->version_id);
2164	} else {
2165	return g_strdup(win_10_0_version->version);
2166	}
2167	}
2168	} else if (major == table->major && minor == table->minor) {
2169	if (id) {
2170	return g_strdup(table->version_id);
2171	} else {
2172	return g_strdup(table->version);
2173	}
2174	}
2175	++table;
2176	}
2177	slog("failed to lookup Windows version: major=%lu, minor=%lu",
2178	major, minor);
2179	return g_strdup("N/A");
2180	}
2181
2182	static char ga_get_win_product_name(Error *errp)
2183	{
2184	HKEY key = INVALID_HANDLE_VALUE;
2185	DWORD size = 128;
2186	char *result = g_malloc0(size);
2187	LONG err = ERROR_SUCCESS;
2188
2189	err = RegOpenKeyA(HKEY_LOCAL_MACHINE,
2190	"SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion",
2191	&key);
2192	if (err != ERROR_SUCCESS) {
2193	error_setg_win32(errp, err, "failed to open registry key");
2194	g_free(result);
2195	return NULL;
2196	}
2197
2198	err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2199	(LPBYTE)result, &size);
2200	if (err == ERROR_MORE_DATA) {
2201	slog("ProductName longer than expected (%lu bytes), retrying",
2202	size);
2203	g_free(result);
2204	result = NULL;
2205	if (size > 0) {
2206	result = g_malloc0(size);
2207	err = RegQueryValueExA(key, "ProductName", NULL, NULL,
2208	(LPBYTE)result, &size);
2209	}
2210	}
2211	if (err != ERROR_SUCCESS) {
2212	error_setg_win32(errp, err, "failed to retrieve ProductName");
2213	goto fail;
2214	}
2215
2216	RegCloseKey(key);
2217	return result;
2218
2219	fail:
2220	if (key != INVALID_HANDLE_VALUE) {
2221	RegCloseKey(key);
2222	}
2223	g_free(result);
2224	return NULL;
2225	}
2226
2227	static char *ga_get_current_arch(void)
2228	{
2229	SYSTEM_INFO info;
2230	GetNativeSystemInfo(&info);
2231	char *result = NULL;
2232	switch (info.wProcessorArchitecture) {
2233	case PROCESSOR_ARCHITECTURE_AMD64:
2234	result = g_strdup("x86_64");
2235	break;
2236	case PROCESSOR_ARCHITECTURE_ARM:
2237	result = g_strdup("arm");
2238	break;
2239	case PROCESSOR_ARCHITECTURE_IA64:
2240	result = g_strdup("ia64");
2241	break;
2242	case PROCESSOR_ARCHITECTURE_INTEL:
2243	result = g_strdup("x86");
2244	break;
2245	case PROCESSOR_ARCHITECTURE_UNKNOWN:
2246	default:
2247	slog("unknown processor architecture 0x%0x",
2248	info.wProcessorArchitecture);
2249	result = g_strdup("unknown");
2250	break;
2251	}
2252	return result;
2253	}
2254
2255	GuestOSInfo qmp_guest_get_osinfo(Error *errp)
2256	{
2257	Error *local_err = NULL;
2258	OSVERSIONINFOEXW os_version = {0};
2259	bool server;
2260	char *product_name;
2261	GuestOSInfo *info;
2262
2263	ga_get_win_version(&os_version, &local_err);
2264	if (local_err) {
2265	error_propagate(errp, local_err);
2266	return NULL;
2267	}
2268
2269	server = os_version.wProductType != VER_NT_WORKSTATION;
2270	product_name = ga_get_win_product_name(errp);
2271	if (product_name == NULL) {
2272	return NULL;
2273	}
2274
2275	info = g_new0(GuestOSInfo, 1);
2276
2277	info->kernel_version = g_strdup_printf("%lu.%lu",
2278	os_version.dwMajorVersion,
2279	os_version.dwMinorVersion);
2280	info->kernel_release = g_strdup_printf("%lu",
2281	os_version.dwBuildNumber);
2282	info->machine = ga_get_current_arch();
2283
2284	info->id = g_strdup("mswindows");
2285	info->name = g_strdup("Microsoft Windows");
2286	info->pretty_name = product_name;
2287	info->version = ga_get_win_name(&os_version, false);
2288	info->version_id = ga_get_win_name(&os_version, true);
2289	info->variant = g_strdup(server ? "server" : "client");
2290	info->variant_id = g_strdup(server ? "server" : "client");
2291
2292	return info;
2293	}
2294
2295	/*
2296	* Safely get device property. Returned strings are using wide characters.
2297	* Caller is responsible for freeing the buffer.
2298	*/
2299	static LPBYTE cm_get_property(DEVINST devInst, const DEVPROPKEY *propName,
2300	PDEVPROPTYPE propType)
2301	{
2302	CONFIGRET cr;
2303	g_autofree LPBYTE buffer = NULL;
2304	ULONG buffer_len = 0;
2305
2306	/* First query for needed space */
2307	cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2308	buffer, &buffer_len, 0);
2309	if (cr != CR_SUCCESS && cr != CR_BUFFER_SMALL) {
2310
2311	slog("failed to get property size, error=0x%lx", cr);
2312	return NULL;
2313	}
2314	buffer = g_new0(BYTE, buffer_len + 1);
2315	cr = CM_Get_DevNode_PropertyW(devInst, propName, propType,
2316	buffer, &buffer_len, 0);
2317	if (cr != CR_SUCCESS) {
2318	slog("failed to get device property, error=0x%lx", cr);
2319	return NULL;
2320	}
2321	return g_steal_pointer(&buffer);
2322	}
2323
2324	static GStrv ga_get_hardware_ids(DEVINST devInstance)
2325	{
2326	GArray *values = NULL;
2327	DEVPROPTYPE cm_type;
2328	LPWSTR id;
2329	g_autofree LPWSTR property = (LPWSTR)cm_get_property(devInstance,
2330	&qga_DEVPKEY_Device_HardwareIds, &cm_type);
2331	if (property == NULL) {
2332	slog("failed to get hardware IDs");
2333	return NULL;
2334	}
2335	if (*property == '\0') {
2336	/* empty list */
2337	return NULL;
2338	}
2339	values = g_array_new(TRUE, TRUE, sizeof(gchar *));
2340	for (id = property; '\0' != *id; id += lstrlenW(id) + 1) {
2341	gchar *id8 = g_utf16_to_utf8(id, -1, NULL, NULL, NULL);
2342	g_array_append_val(values, id8);
2343	}
2344	return (GStrv)g_array_free(values, FALSE);
2345	}
2346
2347	/*
2348	* https://docs.microsoft.com/en-us/windows-hardware/drivers/install/identifiers-for-pci-devices
2349	*/
2350	#define DEVICE_PCI_RE "PCI\\\\VEN_(1AF4\|1B36)&DEV_([0-9A-B]{4})(&\|$)"
2351
2352	GuestDeviceInfoList qmp_guest_get_devices(Error *errp)
2353	{
2354	GuestDeviceInfoList head = NULL, *tail = &head;
2355	HDEVINFO dev_info = INVALID_HANDLE_VALUE;
2356	SP_DEVINFO_DATA dev_info_data;
2357	int i, j;
2358	GError *gerr = NULL;
2359	g_autoptr(GRegex) device_pci_re = NULL;
2360	DEVPROPTYPE cm_type;
2361
2362	device_pci_re = g_regex_new(DEVICE_PCI_RE,
2363	G_REGEX_ANCHORED \| G_REGEX_OPTIMIZE, 0,
2364	&gerr);
2365	g_assert(device_pci_re != NULL);
2366
2367	dev_info_data.cbSize = sizeof(SP_DEVINFO_DATA);
2368	dev_info = SetupDiGetClassDevs(0, 0, 0, DIGCF_PRESENT \| DIGCF_ALLCLASSES);
2369	if (dev_info == INVALID_HANDLE_VALUE) {
2370	error_setg(errp, "failed to get device tree");
2371	return NULL;
2372	}
2373
2374	slog("enumerating devices");
2375	for (i = 0; SetupDiEnumDeviceInfo(dev_info, i, &dev_info_data); i++) {
2376	bool skip = true;
2377	g_autofree LPWSTR name = NULL;
2378	g_autofree LPFILETIME date = NULL;
2379	g_autofree LPWSTR version = NULL;
2380	g_auto(GStrv) hw_ids = NULL;
2381	g_autoptr(GuestDeviceInfo) device = g_new0(GuestDeviceInfo, 1);
2382	g_autofree char *vendor_id = NULL;
2383	g_autofree char *device_id = NULL;
2384
2385	name = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2386	&qga_DEVPKEY_NAME, &cm_type);
2387	if (name == NULL) {
2388	slog("failed to get device description");
2389	continue;
2390	}
2391	device->driver_name = g_utf16_to_utf8(name, -1, NULL, NULL, NULL);
2392	if (device->driver_name == NULL) {
2393	error_setg(errp, "conversion to utf8 failed (driver name)");
2394	return NULL;
2395	}
2396	slog("querying device: %s", device->driver_name);
2397	hw_ids = ga_get_hardware_ids(dev_info_data.DevInst);
2398	if (hw_ids == NULL) {
2399	continue;
2400	}
2401	for (j = 0; hw_ids[j] != NULL; j++) {
2402	g_autoptr(GMatchInfo) match_info;
2403	GuestDeviceIdPCI *id;
2404	if (!g_regex_match(device_pci_re, hw_ids[j], 0, &match_info)) {
2405	continue;
2406	}
2407	skip = false;
2408
2409	vendor_id = g_match_info_fetch(match_info, 1);
2410	device_id = g_match_info_fetch(match_info, 2);
2411
2412	device->id = g_new0(GuestDeviceId, 1);
2413	device->id->type = GUEST_DEVICE_TYPE_PCI;
2414	id = &device->id->u.pci;
2415	id->vendor_id = g_ascii_strtoull(vendor_id, NULL, 16);
2416	id->device_id = g_ascii_strtoull(device_id, NULL, 16);
2417
2418	break;
2419	}
2420	if (skip) {
2421	continue;
2422	}
2423
2424	version = (LPWSTR)cm_get_property(dev_info_data.DevInst,
2425	&qga_DEVPKEY_Device_DriverVersion, &cm_type);
2426	if (version == NULL) {
2427	slog("failed to get driver version");
2428	continue;
2429	}
2430	device->driver_version = g_utf16_to_utf8(version, -1, NULL,
2431	NULL, NULL);
2432	if (device->driver_version == NULL) {
2433	error_setg(errp, "conversion to utf8 failed (driver version)");
2434	return NULL;
2435	}
2436
2437	date = (LPFILETIME)cm_get_property(dev_info_data.DevInst,
2438	&qga_DEVPKEY_Device_DriverDate, &cm_type);
2439	if (date == NULL) {
2440	slog("failed to get driver date");
2441	continue;
2442	}
2443	device->driver_date = filetime_to_ns(date);
2444	device->has_driver_date = true;
2445
2446	slog("driver: %s\ndriver version: %" PRId64 ",%s\n",
2447	device->driver_name, device->driver_date,
2448	device->driver_version);
2449	QAPI_LIST_APPEND(tail, g_steal_pointer(&device));
2450	}
2451
2452	if (dev_info != INVALID_HANDLE_VALUE) {
2453	SetupDiDestroyDeviceInfoList(dev_info);
2454	}
2455	return head;
2456	}
2457
2458	char qga_get_host_name(Error *errp)
2459	{
2460	wchar_t tmp[MAX_COMPUTERNAME_LENGTH + 1];
2461	DWORD size = G_N_ELEMENTS(tmp);
2462
2463	if (GetComputerNameW(tmp, &size) == 0) {
2464	error_setg_win32(errp, GetLastError(), "failed close handle");
2465	return NULL;
2466	}
2467
2468	return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL);
2469	}
2470
2471
2472	static VOID CALLBACK load_avg_callback(PVOID hCounter, BOOLEAN timedOut)
2473	{
2474	PDH_FMT_COUNTERVALUE displayValue;
2475	double currentLoad;
2476	PDH_STATUS err;
2477
2478	err = PdhGetFormattedCounterValue(
2479	(PDH_HCOUNTER)hCounter, PDH_FMT_DOUBLE, 0, &displayValue);
2480	/* Skip updating the load if we can't get the value successfully */
2481	if (err != ERROR_SUCCESS) {
2482	slog("PdhGetFormattedCounterValue failed to get load value with 0x%lx",
2483	err);
2484	return;
2485	}
2486	currentLoad = displayValue.doubleValue;
2487
2488	load_avg_1m = load_avg_1m * LOADAVG_FACTOR_1F + currentLoad * \
2489	(1.0 - LOADAVG_FACTOR_1F);
2490	load_avg_5m = load_avg_5m * LOADAVG_FACTOR_5F + currentLoad * \
2491	(1.0 - LOADAVG_FACTOR_5F);
2492	load_avg_15m = load_avg_15m * LOADAVG_FACTOR_15F + currentLoad * \
2493	(1.0 - LOADAVG_FACTOR_15F);
2494	}
2495
2496	static BOOL init_load_avg_counter(Error **errp)
2497	{
2498	CONST WCHAR *szCounterPath = L"\\System\\Processor Queue Length";
2499	PDH_STATUS status;
2500	BOOL ret;
2501	HQUERY hQuery;
2502	HCOUNTER hCounter;
2503	HANDLE event;
2504	HANDLE waitHandle;
2505
2506	status = PdhOpenQueryW(NULL, 0, &hQuery);
2507	if (status != ERROR_SUCCESS) {
2508	/*
2509	* If the function fails, the return value is a system error code or
2510	* a PDH error code. error_setg_win32 cant translate PDH error code
2511	* properly, so just report it as is.
2512	*/
2513	error_setg_win32(errp, (DWORD)status,
2514	"PdhOpenQueryW failed with 0x%lx", status);
2515	return FALSE;
2516	}
2517
2518	status = PdhAddEnglishCounterW(hQuery, szCounterPath, 0, &hCounter);
2519	if (status != ERROR_SUCCESS) {
2520	error_setg_win32(errp, (DWORD)status,
2521	"PdhAddEnglishCounterW failed with 0x%lx. Performance counters may be disabled.",
2522	status);
2523	PdhCloseQuery(hQuery);
2524	return FALSE;
2525	}
2526
2527	event = CreateEventW(NULL, FALSE, FALSE, L"LoadUpdateEvent");
2528	if (event == NULL) {
2529	error_setg_win32(errp, GetLastError(), "Create LoadUpdateEvent failed");
2530	PdhCloseQuery(hQuery);
2531	return FALSE;
2532	}
2533
2534	status = PdhCollectQueryDataEx(hQuery, LOADAVG_SAMPLING_INTERVAL, event);
2535	if (status != ERROR_SUCCESS) {
2536	error_setg_win32(errp, (DWORD)status,
2537	"PdhCollectQueryDataEx failed with 0x%lx", status);
2538	CloseHandle(event);
2539	PdhCloseQuery(hQuery);
2540	return FALSE;
2541	}
2542
2543	ret = RegisterWaitForSingleObject(
2544	&waitHandle,
2545	event,
2546	(WAITORTIMERCALLBACK)load_avg_callback,
2547	(PVOID)hCounter,
2548	INFINITE,
2549	WT_EXECUTEDEFAULT);
2550
2551	if (ret == 0) {
2552	error_setg_win32(errp, GetLastError(),
2553	"RegisterWaitForSingleObject failed");
2554	CloseHandle(event);
2555	PdhCloseQuery(hQuery);
2556	return FALSE;
2557	}
2558
2559	ga_set_load_avg_wait_handle(ga_state, waitHandle);
2560	ga_set_load_avg_event(ga_state, event);
2561	ga_set_load_avg_pdh_query(ga_state, hQuery);
2562
2563	return TRUE;
2564	}
2565
2566	GuestLoadAverage qmp_guest_get_load(Error *errp)
2567	{
2568	/*
2569	* The load average logic calls PerformaceCounterAPI, which can result
2570	* in a performance penalty. This avoids running the load average logic
2571	* until a management application actually requests it. The load average
2572	* will not initially be very accurate, but assuming that any interested
2573	* management application will request it repeatedly throughout the lifetime
2574	* of the VM, this seems like a good mitigation.
2575	*/
2576	if (ga_get_load_avg_pdh_query(ga_state) == NULL) {
2577	/* set initial values */
2578	load_avg_1m = 0;
2579	load_avg_5m = 0;
2580	load_avg_15m = 0;
2581
2582	if (init_load_avg_counter(errp) == false) {
2583	return NULL;
2584	}
2585	}
2586
2587	GuestLoadAverage *ret = NULL;
2588
2589	ret = g_new0(GuestLoadAverage, 1);
2590	ret->load1m = load_avg_1m;
2591	ret->load5m = load_avg_5m;
2592	ret->load15m = load_avg_15m;
2593	return ret;
2594	}
2595
2596	/* Helper function to get interface name with fallbacks */
2597	static char get_interface_name(const MIB_IPFORWARD_ROW2 row,
2598	IP_ADAPTER_ADDRESSES *adptr_addrs)
2599	{
2600	IP_ADAPTER_ADDRESSES *adapter;
2601	char *iface_name = NULL;
2602
2603	if (adptr_addrs) {
2604	for (adapter = adptr_addrs; adapter; adapter = adapter->Next) {
2605	if (adapter->Luid.Value == row->InterfaceLuid.Value) {
2606	iface_name = guest_wctomb_dup(adapter->FriendlyName);
2607	break;
2608	}
2609	}
2610	}
2611
2612	if (!iface_name) {
2613	iface_name = g_strdup_printf("if%lu", row->InterfaceIndex);
2614	}
2615
2616	return iface_name;
2617	}
2618
2619	/* Helper function to fill IPv4 route information */
2620	static void fill_ipv4_route_info(GuestNetworkRoute *route,
2621	const MIB_IPFORWARD_ROW2 *row)
2622	{
2623	struct sockaddr_in *addr_in;
2624	char addr_str[INET_ADDRSTRLEN];
2625
2626	addr_in = (struct sockaddr_in *)&row->DestinationPrefix.Prefix;
2627	if (inet_ntop(AF_INET, &addr_in->sin_addr, addr_str, INET_ADDRSTRLEN)) {
2628	route->destination = g_strdup(addr_str);
2629	} else {
2630	route->destination = g_strdup("0.0.0.0");
2631	}
2632
2633	if (row->DestinationPrefix.PrefixLength == 0) {
2634	route->mask = g_strdup("0.0.0.0");
2635	} else {
2636	uint32_t mask = htonl(0xFFFFFFFF << (32 -
2637	row->DestinationPrefix.PrefixLength));
2638	struct in_addr mask_addr = { .s_addr = mask };
2639	route->mask = g_strdup(inet_ntoa(mask_addr));
2640	}
2641
2642	addr_in = (struct sockaddr_in *)&row->NextHop;
2643	if (inet_ntop(AF_INET, &addr_in->sin_addr, addr_str, INET_ADDRSTRLEN)) {
2644	route->gateway = g_strdup(addr_str);
2645	} else {
2646	route->gateway = g_strdup("0.0.0.0");
2647	}
2648
2649	route->version = 4;
2650	}
2651
2652	/* Helper function to fill IPv6 route information */
2653	static void fill_ipv6_route_info(GuestNetworkRoute *route,
2654	const MIB_IPFORWARD_ROW2 *row)
2655	{
2656	struct sockaddr_in6 *addr_in6;
2657	char addr_str[INET6_ADDRSTRLEN];
2658
2659	addr_in6 = (struct sockaddr_in6 *)&row->DestinationPrefix.Prefix;
2660	if (inet_ntop(AF_INET6, &addr_in6->sin6_addr, addr_str, INET6_ADDRSTRLEN)) {
2661	route->destination = g_strdup(addr_str);
2662	} else {
2663	route->destination = g_strdup("::");
2664	}
2665
2666	addr_in6 = (struct sockaddr_in6 *)&row->NextHop;
2667	if (inet_ntop(AF_INET6, &addr_in6->sin6_addr, addr_str, INET6_ADDRSTRLEN)) {
2668	route->nexthop = g_strdup(addr_str);
2669	} else {
2670	route->nexthop = g_strdup("::");
2671	}
2672
2673	route->desprefixlen = g_strdup_printf("%u",
2674	row->DestinationPrefix.PrefixLength);
2675	route->version = 6;
2676	}
2677
2678	GuestNetworkRouteList qmp_guest_network_get_route(Error *errp)
2679	{
2680	GuestNetworkRouteList head = NULL, *tail = &head;
2681	PMIB_IPFORWARD_TABLE2 pIpForwardTable2;
2682	DWORD dwRetVal = 0;
2683	DWORD i;
2684	PMIB_IPFORWARD_ROW2 row;
2685	GuestNetworkRoute *route;
2686	IP_ADAPTER_ADDRESSES *adptr_addrs;
2687	MIB_IPINTERFACE_ROW ipifrow;
2688	MIB_IF_ROW2 ifrow2;
2689	Error *local_err = NULL;
2690	GHashTable *interface_metric_cache;
2691
2692	dwRetVal = GetIpForwardTable2(AF_UNSPEC, &pIpForwardTable2);
2693	if (dwRetVal != NO_ERROR) {
2694	error_setg_win32(errp, dwRetVal, "failed to get IP routes");
2695	return NULL;
2696	}
2697
2698	interface_metric_cache = g_hash_table_new_full(g_str_hash, g_str_equal,
2699	g_free, NULL);
2700	adptr_addrs = guest_get_adapters_addresses(&local_err);
2701	if (local_err) {
2702	error_free(local_err);
2703	adptr_addrs = NULL;
2704	}
2705
2706	for (i = 0; i < pIpForwardTable2->NumEntries; i++) {
2707	row = &pIpForwardTable2->Table[i];
2708
2709	if (row->DestinationPrefix.Prefix.si_family == AF_INET) {
2710	route = g_new0(GuestNetworkRoute, 1);
2711	fill_ipv4_route_info(route, row);
2712	} else if (row->DestinationPrefix.Prefix.si_family == AF_INET6) {
2713	route = g_new0(GuestNetworkRoute, 1);
2714	fill_ipv6_route_info(route, row);
2715	} else {
2716	continue;
2717	}
2718
2719	route->iface = get_interface_name(row, adptr_addrs);
2720
2721	/*
2722	* Get interface metric for combined route metric calculation.
2723	* Windows calculates effective route metric as route + interface metric.
2724	* This matches the values displayed by Windows 'route print' command.
2725	* See:
2726	* https://learn.microsoft.com/en-us/windows/win32/api/netioapi/ns-netioapi-mib_ipforward_row2
2727	*/
2728	gchar *luid_key = g_strdup_printf("%" G_GUINT64_FORMAT,
2729	row->InterfaceLuid.Value);
2730	gpointer cached_metric = g_hash_table_lookup(interface_metric_cache,
2731	luid_key);
2732
2733	if (cached_metric) {
2734	route->metric = (int)row->Metric + GPOINTER_TO_INT(cached_metric);
2735	g_free(luid_key);
2736	} else {
2737	memset(&ipifrow, 0, sizeof(ipifrow));
2738	InitializeIpInterfaceEntry(&ipifrow);
2739	ipifrow.InterfaceLuid = row->InterfaceLuid;
2740	ipifrow.Family = row->DestinationPrefix.Prefix.si_family;
2741	if (GetIpInterfaceEntry(&ipifrow) == NO_ERROR) {
2742	g_hash_table_insert(interface_metric_cache, luid_key,
2743	GINT_TO_POINTER(ipifrow.Metric));
2744	route->metric = (int)row->Metric + (int)ipifrow.Metric;
2745	} else {
2746	route->metric = (int)row->Metric;
2747	g_free(luid_key);
2748	}
2749	}
2750
2751	memset(&ifrow2, 0, sizeof(ifrow2));
2752	ifrow2.InterfaceLuid = row->InterfaceLuid;
2753	if (GetIfEntry2(&ifrow2) == NO_ERROR) {
2754	route->has_mtu = true;
2755	route->mtu = (int)ifrow2.Mtu;
2756	}
2757
2758	QAPI_LIST_APPEND(tail, route);
2759	route = NULL;
2760	}
2761
2762	FreeMibTable(pIpForwardTable2);
2763	g_free(adptr_addrs);
2764	g_hash_table_destroy(interface_metric_cache);
2765	return head;
2766	}