]>
Commit | Line | Data |
---|---|---|
d8ca685a MR |
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> | |
aa59637e | 8 | * Gal Hammer <ghammer@redhat.com> |
d8ca685a MR |
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 | ||
14 | #include <glib.h> | |
aa59637e GH |
15 | #include <wtypes.h> |
16 | #include <powrprof.h> | |
d8ca685a | 17 | #include "qga/guest-agent-core.h" |
64c00317 | 18 | #include "qga/vss-win32.h" |
d8ca685a | 19 | #include "qga-qmp-commands.h" |
7b1b5d19 | 20 | #include "qapi/qmp/qerror.h" |
d8ca685a | 21 | |
546b60d0 MR |
22 | #ifndef SHTDN_REASON_FLAG_PLANNED |
23 | #define SHTDN_REASON_FLAG_PLANNED 0x80000000 | |
24 | #endif | |
25 | ||
3f2a6087 LL |
26 | /* multiple of 100 nanoseconds elapsed between windows baseline |
27 | * (1/1/1601) and Unix Epoch (1/1/1970), accounting for leap years */ | |
28 | #define W32_FT_OFFSET (10000000ULL * 60 * 60 * 24 * \ | |
29 | (365 * (1970 - 1601) + \ | |
30 | (1970 - 1601) / 4 - 3)) | |
31 | ||
77dbc81b | 32 | static void acquire_privilege(const char *name, Error **errp) |
d8ca685a | 33 | { |
546b60d0 MR |
34 | HANDLE token; |
35 | TOKEN_PRIVILEGES priv; | |
aa59637e GH |
36 | Error *local_err = NULL; |
37 | ||
aa59637e GH |
38 | if (OpenProcessToken(GetCurrentProcess(), |
39 | TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &token)) | |
40 | { | |
41 | if (!LookupPrivilegeValue(NULL, name, &priv.Privileges[0].Luid)) { | |
42 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
43 | "no luid for requested privilege"); | |
44 | goto out; | |
45 | } | |
46 | ||
47 | priv.PrivilegeCount = 1; | |
48 | priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; | |
49 | ||
50 | if (!AdjustTokenPrivileges(token, FALSE, &priv, 0, NULL, 0)) { | |
51 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
52 | "unable to acquire requested privilege"); | |
53 | goto out; | |
54 | } | |
55 | ||
56 | CloseHandle(token); | |
57 | } else { | |
58 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
59 | "failed to open privilege token"); | |
60 | } | |
61 | ||
62 | out: | |
63 | if (local_err) { | |
77dbc81b | 64 | error_propagate(errp, local_err); |
aa59637e GH |
65 | } |
66 | } | |
67 | ||
77dbc81b MA |
68 | static void execute_async(DWORD WINAPI (*func)(LPVOID), LPVOID opaque, |
69 | Error **errp) | |
aa59637e GH |
70 | { |
71 | Error *local_err = NULL; | |
72 | ||
aa59637e GH |
73 | HANDLE thread = CreateThread(NULL, 0, func, opaque, 0, NULL); |
74 | if (!thread) { | |
75 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
76 | "failed to dispatch asynchronous command"); | |
77dbc81b | 77 | error_propagate(errp, local_err); |
aa59637e GH |
78 | } |
79 | } | |
80 | ||
77dbc81b | 81 | void qmp_guest_shutdown(bool has_mode, const char *mode, Error **errp) |
aa59637e | 82 | { |
0f230bf7 | 83 | Error *local_err = NULL; |
546b60d0 MR |
84 | UINT shutdown_flag = EWX_FORCE; |
85 | ||
86 | slog("guest-shutdown called, mode: %s", mode); | |
87 | ||
88 | if (!has_mode || strcmp(mode, "powerdown") == 0) { | |
89 | shutdown_flag |= EWX_POWEROFF; | |
90 | } else if (strcmp(mode, "halt") == 0) { | |
91 | shutdown_flag |= EWX_SHUTDOWN; | |
92 | } else if (strcmp(mode, "reboot") == 0) { | |
93 | shutdown_flag |= EWX_REBOOT; | |
94 | } else { | |
77dbc81b | 95 | error_set(errp, QERR_INVALID_PARAMETER_VALUE, "mode", |
546b60d0 MR |
96 | "halt|powerdown|reboot"); |
97 | return; | |
98 | } | |
99 | ||
100 | /* Request a shutdown privilege, but try to shut down the system | |
101 | anyway. */ | |
0f230bf7 MA |
102 | acquire_privilege(SE_SHUTDOWN_NAME, &local_err); |
103 | if (local_err) { | |
104 | error_propagate(errp, local_err); | |
aa59637e | 105 | return; |
546b60d0 MR |
106 | } |
107 | ||
108 | if (!ExitWindowsEx(shutdown_flag, SHTDN_REASON_FLAG_PLANNED)) { | |
16f4e8fa | 109 | slog("guest-shutdown failed: %lu", GetLastError()); |
77dbc81b | 110 | error_set(errp, QERR_UNDEFINED_ERROR); |
546b60d0 | 111 | } |
d8ca685a MR |
112 | } |
113 | ||
77dbc81b MA |
114 | int64_t qmp_guest_file_open(const char *path, bool has_mode, const char *mode, |
115 | Error **errp) | |
d8ca685a | 116 | { |
77dbc81b | 117 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
118 | return 0; |
119 | } | |
120 | ||
77dbc81b | 121 | void qmp_guest_file_close(int64_t handle, Error **errp) |
d8ca685a | 122 | { |
77dbc81b | 123 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
124 | } |
125 | ||
126 | GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count, | |
77dbc81b | 127 | int64_t count, Error **errp) |
d8ca685a | 128 | { |
77dbc81b | 129 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
130 | return 0; |
131 | } | |
132 | ||
133 | GuestFileWrite *qmp_guest_file_write(int64_t handle, const char *buf_b64, | |
77dbc81b MA |
134 | bool has_count, int64_t count, |
135 | Error **errp) | |
d8ca685a | 136 | { |
77dbc81b | 137 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
138 | return 0; |
139 | } | |
140 | ||
141 | GuestFileSeek *qmp_guest_file_seek(int64_t handle, int64_t offset, | |
77dbc81b | 142 | int64_t whence, Error **errp) |
d8ca685a | 143 | { |
77dbc81b | 144 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
145 | return 0; |
146 | } | |
147 | ||
77dbc81b | 148 | void qmp_guest_file_flush(int64_t handle, Error **errp) |
d8ca685a | 149 | { |
77dbc81b | 150 | error_set(errp, QERR_UNSUPPORTED); |
d8ca685a MR |
151 | } |
152 | ||
153 | /* | |
154 | * Return status of freeze/thaw | |
155 | */ | |
77dbc81b | 156 | GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) |
d8ca685a | 157 | { |
64c00317 | 158 | if (!vss_initialized()) { |
77dbc81b | 159 | error_set(errp, QERR_UNSUPPORTED); |
64c00317 TS |
160 | return 0; |
161 | } | |
162 | ||
163 | if (ga_is_frozen(ga_state)) { | |
164 | return GUEST_FSFREEZE_STATUS_FROZEN; | |
165 | } | |
166 | ||
167 | return GUEST_FSFREEZE_STATUS_THAWED; | |
d8ca685a MR |
168 | } |
169 | ||
170 | /* | |
64c00317 TS |
171 | * Freeze local file systems using Volume Shadow-copy Service. |
172 | * The frozen state is limited for up to 10 seconds by VSS. | |
d8ca685a | 173 | */ |
77dbc81b | 174 | int64_t qmp_guest_fsfreeze_freeze(Error **errp) |
d8ca685a | 175 | { |
64c00317 TS |
176 | int i; |
177 | Error *local_err = NULL; | |
178 | ||
179 | if (!vss_initialized()) { | |
77dbc81b | 180 | error_set(errp, QERR_UNSUPPORTED); |
64c00317 TS |
181 | return 0; |
182 | } | |
183 | ||
184 | slog("guest-fsfreeze called"); | |
185 | ||
186 | /* cannot risk guest agent blocking itself on a write in this state */ | |
187 | ga_set_frozen(ga_state); | |
188 | ||
0f230bf7 MA |
189 | qga_vss_fsfreeze(&i, &local_err, true); |
190 | if (local_err) { | |
191 | error_propagate(errp, local_err); | |
64c00317 TS |
192 | goto error; |
193 | } | |
194 | ||
195 | return i; | |
196 | ||
197 | error: | |
0f230bf7 | 198 | local_err = NULL; |
64c00317 | 199 | qmp_guest_fsfreeze_thaw(&local_err); |
84d18f06 | 200 | if (local_err) { |
64c00317 TS |
201 | g_debug("cleanup thaw: %s", error_get_pretty(local_err)); |
202 | error_free(local_err); | |
203 | } | |
d8ca685a MR |
204 | return 0; |
205 | } | |
206 | ||
207 | /* | |
64c00317 | 208 | * Thaw local file systems using Volume Shadow-copy Service. |
d8ca685a | 209 | */ |
77dbc81b | 210 | int64_t qmp_guest_fsfreeze_thaw(Error **errp) |
d8ca685a | 211 | { |
64c00317 TS |
212 | int i; |
213 | ||
214 | if (!vss_initialized()) { | |
77dbc81b | 215 | error_set(errp, QERR_UNSUPPORTED); |
64c00317 TS |
216 | return 0; |
217 | } | |
218 | ||
77dbc81b | 219 | qga_vss_fsfreeze(&i, errp, false); |
64c00317 TS |
220 | |
221 | ga_unset_frozen(ga_state); | |
222 | return i; | |
223 | } | |
224 | ||
225 | static void guest_fsfreeze_cleanup(void) | |
226 | { | |
227 | Error *err = NULL; | |
228 | ||
229 | if (!vss_initialized()) { | |
230 | return; | |
231 | } | |
232 | ||
233 | if (ga_is_frozen(ga_state) == GUEST_FSFREEZE_STATUS_FROZEN) { | |
234 | qmp_guest_fsfreeze_thaw(&err); | |
235 | if (err) { | |
236 | slog("failed to clean up frozen filesystems: %s", | |
237 | error_get_pretty(err)); | |
238 | error_free(err); | |
239 | } | |
240 | } | |
241 | ||
242 | vss_deinit(true); | |
d8ca685a MR |
243 | } |
244 | ||
eab5fd59 PB |
245 | /* |
246 | * Walk list of mounted file systems in the guest, and discard unused | |
247 | * areas. | |
248 | */ | |
77dbc81b | 249 | void qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) |
eab5fd59 | 250 | { |
77dbc81b | 251 | error_set(errp, QERR_UNSUPPORTED); |
eab5fd59 PB |
252 | } |
253 | ||
aa59637e | 254 | typedef enum { |
f54603b6 MR |
255 | GUEST_SUSPEND_MODE_DISK, |
256 | GUEST_SUSPEND_MODE_RAM | |
aa59637e GH |
257 | } GuestSuspendMode; |
258 | ||
77dbc81b | 259 | static void check_suspend_mode(GuestSuspendMode mode, Error **errp) |
aa59637e GH |
260 | { |
261 | SYSTEM_POWER_CAPABILITIES sys_pwr_caps; | |
262 | Error *local_err = NULL; | |
263 | ||
aa59637e GH |
264 | ZeroMemory(&sys_pwr_caps, sizeof(sys_pwr_caps)); |
265 | if (!GetPwrCapabilities(&sys_pwr_caps)) { | |
266 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
267 | "failed to determine guest suspend capabilities"); | |
268 | goto out; | |
269 | } | |
270 | ||
f54603b6 MR |
271 | switch (mode) { |
272 | case GUEST_SUSPEND_MODE_DISK: | |
273 | if (!sys_pwr_caps.SystemS4) { | |
274 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
275 | "suspend-to-disk not supported by OS"); | |
aa59637e | 276 | } |
f54603b6 MR |
277 | break; |
278 | case GUEST_SUSPEND_MODE_RAM: | |
279 | if (!sys_pwr_caps.SystemS3) { | |
280 | error_set(&local_err, QERR_QGA_COMMAND_FAILED, | |
281 | "suspend-to-ram not supported by OS"); | |
282 | } | |
283 | break; | |
284 | default: | |
aa59637e GH |
285 | error_set(&local_err, QERR_INVALID_PARAMETER_VALUE, "mode", |
286 | "GuestSuspendMode"); | |
aa59637e GH |
287 | } |
288 | ||
aa59637e GH |
289 | out: |
290 | if (local_err) { | |
77dbc81b | 291 | error_propagate(errp, local_err); |
aa59637e GH |
292 | } |
293 | } | |
294 | ||
295 | static DWORD WINAPI do_suspend(LPVOID opaque) | |
296 | { | |
297 | GuestSuspendMode *mode = opaque; | |
298 | DWORD ret = 0; | |
299 | ||
300 | if (!SetSuspendState(*mode == GUEST_SUSPEND_MODE_DISK, TRUE, TRUE)) { | |
16f4e8fa | 301 | slog("failed to suspend guest, %lu", GetLastError()); |
aa59637e GH |
302 | ret = -1; |
303 | } | |
304 | g_free(mode); | |
305 | return ret; | |
306 | } | |
307 | ||
77dbc81b | 308 | void qmp_guest_suspend_disk(Error **errp) |
11d0f125 | 309 | { |
0f230bf7 | 310 | Error *local_err = NULL; |
aa59637e GH |
311 | GuestSuspendMode *mode = g_malloc(sizeof(GuestSuspendMode)); |
312 | ||
313 | *mode = GUEST_SUSPEND_MODE_DISK; | |
0f230bf7 MA |
314 | check_suspend_mode(*mode, &local_err); |
315 | acquire_privilege(SE_SHUTDOWN_NAME, &local_err); | |
316 | execute_async(do_suspend, mode, &local_err); | |
aa59637e | 317 | |
0f230bf7 MA |
318 | if (local_err) { |
319 | error_propagate(errp, local_err); | |
aa59637e GH |
320 | g_free(mode); |
321 | } | |
11d0f125 LC |
322 | } |
323 | ||
77dbc81b | 324 | void qmp_guest_suspend_ram(Error **errp) |
fbf42210 | 325 | { |
0f230bf7 | 326 | Error *local_err = NULL; |
f54603b6 MR |
327 | GuestSuspendMode *mode = g_malloc(sizeof(GuestSuspendMode)); |
328 | ||
329 | *mode = GUEST_SUSPEND_MODE_RAM; | |
0f230bf7 MA |
330 | check_suspend_mode(*mode, &local_err); |
331 | acquire_privilege(SE_SHUTDOWN_NAME, &local_err); | |
332 | execute_async(do_suspend, mode, &local_err); | |
f54603b6 | 333 | |
0f230bf7 MA |
334 | if (local_err) { |
335 | error_propagate(errp, local_err); | |
f54603b6 MR |
336 | g_free(mode); |
337 | } | |
fbf42210 LC |
338 | } |
339 | ||
77dbc81b | 340 | void qmp_guest_suspend_hybrid(Error **errp) |
95f4f404 | 341 | { |
77dbc81b | 342 | error_set(errp, QERR_UNSUPPORTED); |
95f4f404 LC |
343 | } |
344 | ||
77dbc81b | 345 | GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) |
3424fc9f | 346 | { |
77dbc81b | 347 | error_set(errp, QERR_UNSUPPORTED); |
3424fc9f MP |
348 | return NULL; |
349 | } | |
350 | ||
6912e6a9 LL |
351 | int64_t qmp_guest_get_time(Error **errp) |
352 | { | |
3f2a6087 LL |
353 | SYSTEMTIME ts = {0}; |
354 | int64_t time_ns; | |
355 | FILETIME tf; | |
356 | ||
357 | GetSystemTime(&ts); | |
358 | if (ts.wYear < 1601 || ts.wYear > 30827) { | |
359 | error_setg(errp, "Failed to get time"); | |
360 | return -1; | |
361 | } | |
362 | ||
363 | if (!SystemTimeToFileTime(&ts, &tf)) { | |
364 | error_setg(errp, "Failed to convert system time: %d", (int)GetLastError()); | |
365 | return -1; | |
366 | } | |
367 | ||
368 | time_ns = ((((int64_t)tf.dwHighDateTime << 32) | tf.dwLowDateTime) | |
369 | - W32_FT_OFFSET) * 100; | |
370 | ||
371 | return time_ns; | |
6912e6a9 LL |
372 | } |
373 | ||
2c958923 | 374 | void qmp_guest_set_time(bool has_time, int64_t time_ns, Error **errp) |
a1bca57f | 375 | { |
0f230bf7 | 376 | Error *local_err = NULL; |
b8f954fe LL |
377 | SYSTEMTIME ts; |
378 | FILETIME tf; | |
379 | LONGLONG time; | |
380 | ||
2c958923 MP |
381 | if (has_time) { |
382 | /* Okay, user passed a time to set. Validate it. */ | |
383 | if (time_ns < 0 || time_ns / 100 > INT64_MAX - W32_FT_OFFSET) { | |
384 | error_setg(errp, "Time %" PRId64 "is invalid", time_ns); | |
385 | return; | |
386 | } | |
b8f954fe | 387 | |
2c958923 | 388 | time = time_ns / 100 + W32_FT_OFFSET; |
b8f954fe | 389 | |
2c958923 MP |
390 | tf.dwLowDateTime = (DWORD) time; |
391 | tf.dwHighDateTime = (DWORD) (time >> 32); | |
b8f954fe | 392 | |
2c958923 MP |
393 | if (!FileTimeToSystemTime(&tf, &ts)) { |
394 | error_setg(errp, "Failed to convert system time %d", | |
395 | (int)GetLastError()); | |
396 | return; | |
397 | } | |
398 | } else { | |
399 | /* Otherwise read the time from RTC which contains the correct value. | |
400 | * Hopefully. */ | |
401 | GetSystemTime(&ts); | |
402 | if (ts.wYear < 1601 || ts.wYear > 30827) { | |
403 | error_setg(errp, "Failed to get time"); | |
404 | return; | |
405 | } | |
b8f954fe LL |
406 | } |
407 | ||
0f230bf7 MA |
408 | acquire_privilege(SE_SYSTEMTIME_NAME, &local_err); |
409 | if (local_err) { | |
410 | error_propagate(errp, local_err); | |
b8f954fe LL |
411 | return; |
412 | } | |
413 | ||
414 | if (!SetSystemTime(&ts)) { | |
415 | error_setg(errp, "Failed to set time to guest: %d", (int)GetLastError()); | |
416 | return; | |
417 | } | |
a1bca57f LL |
418 | } |
419 | ||
70e133a7 LE |
420 | GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) |
421 | { | |
422 | error_set(errp, QERR_UNSUPPORTED); | |
423 | return NULL; | |
424 | } | |
425 | ||
426 | int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) | |
427 | { | |
428 | error_set(errp, QERR_UNSUPPORTED); | |
429 | return -1; | |
430 | } | |
431 | ||
d8ca685a MR |
432 | /* register init/cleanup routines for stateful command groups */ |
433 | void ga_command_state_init(GAState *s, GACommandState *cs) | |
434 | { | |
64c00317 TS |
435 | if (vss_init(true)) { |
436 | ga_command_state_add(cs, NULL, guest_fsfreeze_cleanup); | |
437 | } | |
d8ca685a | 438 | } |