block: Rename raw-{posix,win32} to file-*.c
[qemu.git] / qmp.c
1 /*
2 * QEMU Management Protocol
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
11 *
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
14 */
15
16 #include "qemu/osdep.h"
17 #include "qemu-version.h"
18 #include "qemu/cutils.h"
19 #include "monitor/monitor.h"
20 #include "sysemu/sysemu.h"
21 #include "qemu/uuid.h"
22 #include "qmp-commands.h"
23 #include "sysemu/char.h"
24 #include "ui/qemu-spice.h"
25 #include "ui/vnc.h"
26 #include "sysemu/kvm.h"
27 #include "sysemu/arch_init.h"
28 #include "hw/qdev.h"
29 #include "sysemu/blockdev.h"
30 #include "sysemu/block-backend.h"
31 #include "qom/qom-qobject.h"
32 #include "qapi/qmp/qerror.h"
33 #include "qapi/qmp/qobject.h"
34 #include "qapi/qobject-input-visitor.h"
35 #include "hw/boards.h"
36 #include "qom/object_interfaces.h"
37 #include "hw/mem/pc-dimm.h"
38 #include "hw/acpi/acpi_dev_interface.h"
39
40 NameInfo *qmp_query_name(Error **errp)
41 {
42 NameInfo *info = g_malloc0(sizeof(*info));
43
44 if (qemu_name) {
45 info->has_name = true;
46 info->name = g_strdup(qemu_name);
47 }
48
49 return info;
50 }
51
52 VersionInfo *qmp_query_version(Error **errp)
53 {
54 VersionInfo *info = g_new0(VersionInfo, 1);
55
56 info->qemu = g_new0(VersionTriple, 1);
57 info->qemu->major = QEMU_VERSION_MAJOR;
58 info->qemu->minor = QEMU_VERSION_MINOR;
59 info->qemu->micro = QEMU_VERSION_MICRO;
60 info->package = g_strdup(QEMU_PKGVERSION);
61
62 return info;
63 }
64
65 KvmInfo *qmp_query_kvm(Error **errp)
66 {
67 KvmInfo *info = g_malloc0(sizeof(*info));
68
69 info->enabled = kvm_enabled();
70 info->present = kvm_available();
71
72 return info;
73 }
74
75 UuidInfo *qmp_query_uuid(Error **errp)
76 {
77 UuidInfo *info = g_malloc0(sizeof(*info));
78
79 info->UUID = qemu_uuid_unparse_strdup(&qemu_uuid);
80 return info;
81 }
82
83 void qmp_quit(Error **errp)
84 {
85 no_shutdown = 0;
86 qemu_system_shutdown_request();
87 }
88
89 void qmp_stop(Error **errp)
90 {
91 /* if there is a dump in background, we should wait until the dump
92 * finished */
93 if (dump_in_progress()) {
94 error_setg(errp, "There is a dump in process, please wait.");
95 return;
96 }
97
98 if (runstate_check(RUN_STATE_INMIGRATE)) {
99 autostart = 0;
100 } else {
101 vm_stop(RUN_STATE_PAUSED);
102 }
103 }
104
105 void qmp_system_reset(Error **errp)
106 {
107 qemu_system_reset_request();
108 }
109
110 void qmp_system_powerdown(Error **erp)
111 {
112 qemu_system_powerdown_request();
113 }
114
115 void qmp_cpu(int64_t index, Error **errp)
116 {
117 /* Just do nothing */
118 }
119
120 void qmp_cpu_add(int64_t id, Error **errp)
121 {
122 MachineClass *mc;
123
124 mc = MACHINE_GET_CLASS(current_machine);
125 if (mc->hot_add_cpu) {
126 mc->hot_add_cpu(id, errp);
127 } else {
128 error_setg(errp, "Not supported");
129 }
130 }
131
132 #ifndef CONFIG_VNC
133 /* If VNC support is enabled, the "true" query-vnc command is
134 defined in the VNC subsystem */
135 VncInfo *qmp_query_vnc(Error **errp)
136 {
137 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
138 return NULL;
139 };
140
141 VncInfo2List *qmp_query_vnc_servers(Error **errp)
142 {
143 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
144 return NULL;
145 };
146 #endif
147
148 #ifndef CONFIG_SPICE
149 /*
150 * qmp-commands.hx ensures that QMP command query-spice exists only
151 * #ifdef CONFIG_SPICE. Necessary for an accurate query-commands
152 * result. However, the QAPI schema is blissfully unaware of that,
153 * and the QAPI code generator happily generates a dead
154 * qmp_marshal_query_spice() that calls qmp_query_spice(). Provide it
155 * one, or else linking fails. FIXME Educate the QAPI schema on
156 * CONFIG_SPICE.
157 */
158 SpiceInfo *qmp_query_spice(Error **errp)
159 {
160 abort();
161 };
162 #endif
163
164 void qmp_cont(Error **errp)
165 {
166 Error *local_err = NULL;
167 BlockBackend *blk;
168 BlockDriverState *bs;
169 BdrvNextIterator it;
170
171 /* if there is a dump in background, we should wait until the dump
172 * finished */
173 if (dump_in_progress()) {
174 error_setg(errp, "There is a dump in process, please wait.");
175 return;
176 }
177
178 if (runstate_needs_reset()) {
179 error_setg(errp, "Resetting the Virtual Machine is required");
180 return;
181 } else if (runstate_check(RUN_STATE_SUSPENDED)) {
182 return;
183 }
184
185 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
186 blk_iostatus_reset(blk);
187 }
188
189 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
190 bdrv_add_key(bs, NULL, &local_err);
191 if (local_err) {
192 error_propagate(errp, local_err);
193 return;
194 }
195 }
196
197 /* Continuing after completed migration. Images have been inactivated to
198 * allow the destination to take control. Need to get control back now. */
199 if (runstate_check(RUN_STATE_FINISH_MIGRATE) ||
200 runstate_check(RUN_STATE_POSTMIGRATE))
201 {
202 bdrv_invalidate_cache_all(&local_err);
203 if (local_err) {
204 error_propagate(errp, local_err);
205 return;
206 }
207 }
208
209 if (runstate_check(RUN_STATE_INMIGRATE)) {
210 autostart = 1;
211 } else {
212 vm_start();
213 }
214 }
215
216 void qmp_system_wakeup(Error **errp)
217 {
218 qemu_system_wakeup_request(QEMU_WAKEUP_REASON_OTHER);
219 }
220
221 ObjectPropertyInfoList *qmp_qom_list(const char *path, Error **errp)
222 {
223 Object *obj;
224 bool ambiguous = false;
225 ObjectPropertyInfoList *props = NULL;
226 ObjectProperty *prop;
227 ObjectPropertyIterator iter;
228
229 obj = object_resolve_path(path, &ambiguous);
230 if (obj == NULL) {
231 if (ambiguous) {
232 error_setg(errp, "Path '%s' is ambiguous", path);
233 } else {
234 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
235 "Device '%s' not found", path);
236 }
237 return NULL;
238 }
239
240 object_property_iter_init(&iter, obj);
241 while ((prop = object_property_iter_next(&iter))) {
242 ObjectPropertyInfoList *entry = g_malloc0(sizeof(*entry));
243
244 entry->value = g_malloc0(sizeof(ObjectPropertyInfo));
245 entry->next = props;
246 props = entry;
247
248 entry->value->name = g_strdup(prop->name);
249 entry->value->type = g_strdup(prop->type);
250 }
251
252 return props;
253 }
254
255 void qmp_qom_set(const char *path, const char *property, QObject *value,
256 Error **errp)
257 {
258 Object *obj;
259
260 obj = object_resolve_path(path, NULL);
261 if (!obj) {
262 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
263 "Device '%s' not found", path);
264 return;
265 }
266
267 object_property_set_qobject(obj, value, property, errp);
268 }
269
270 QObject *qmp_qom_get(const char *path, const char *property, Error **errp)
271 {
272 Object *obj;
273
274 obj = object_resolve_path(path, NULL);
275 if (!obj) {
276 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
277 "Device '%s' not found", path);
278 return NULL;
279 }
280
281 return object_property_get_qobject(obj, property, errp);
282 }
283
284 void qmp_set_password(const char *protocol, const char *password,
285 bool has_connected, const char *connected, Error **errp)
286 {
287 int disconnect_if_connected = 0;
288 int fail_if_connected = 0;
289 int rc;
290
291 if (has_connected) {
292 if (strcmp(connected, "fail") == 0) {
293 fail_if_connected = 1;
294 } else if (strcmp(connected, "disconnect") == 0) {
295 disconnect_if_connected = 1;
296 } else if (strcmp(connected, "keep") == 0) {
297 /* nothing */
298 } else {
299 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
300 return;
301 }
302 }
303
304 if (strcmp(protocol, "spice") == 0) {
305 if (!qemu_using_spice(errp)) {
306 return;
307 }
308 rc = qemu_spice_set_passwd(password, fail_if_connected,
309 disconnect_if_connected);
310 if (rc != 0) {
311 error_setg(errp, QERR_SET_PASSWD_FAILED);
312 }
313 return;
314 }
315
316 if (strcmp(protocol, "vnc") == 0) {
317 if (fail_if_connected || disconnect_if_connected) {
318 /* vnc supports "connected=keep" only */
319 error_setg(errp, QERR_INVALID_PARAMETER, "connected");
320 return;
321 }
322 /* Note that setting an empty password will not disable login through
323 * this interface. */
324 rc = vnc_display_password(NULL, password);
325 if (rc < 0) {
326 error_setg(errp, QERR_SET_PASSWD_FAILED);
327 }
328 return;
329 }
330
331 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
332 }
333
334 void qmp_expire_password(const char *protocol, const char *whenstr,
335 Error **errp)
336 {
337 time_t when;
338 int rc;
339
340 if (strcmp(whenstr, "now") == 0) {
341 when = 0;
342 } else if (strcmp(whenstr, "never") == 0) {
343 when = TIME_MAX;
344 } else if (whenstr[0] == '+') {
345 when = time(NULL) + strtoull(whenstr+1, NULL, 10);
346 } else {
347 when = strtoull(whenstr, NULL, 10);
348 }
349
350 if (strcmp(protocol, "spice") == 0) {
351 if (!qemu_using_spice(errp)) {
352 return;
353 }
354 rc = qemu_spice_set_pw_expire(when);
355 if (rc != 0) {
356 error_setg(errp, QERR_SET_PASSWD_FAILED);
357 }
358 return;
359 }
360
361 if (strcmp(protocol, "vnc") == 0) {
362 rc = vnc_display_pw_expire(NULL, when);
363 if (rc != 0) {
364 error_setg(errp, QERR_SET_PASSWD_FAILED);
365 }
366 return;
367 }
368
369 error_setg(errp, QERR_INVALID_PARAMETER, "protocol");
370 }
371
372 #ifdef CONFIG_VNC
373 void qmp_change_vnc_password(const char *password, Error **errp)
374 {
375 if (vnc_display_password(NULL, password) < 0) {
376 error_setg(errp, QERR_SET_PASSWD_FAILED);
377 }
378 }
379
380 static void qmp_change_vnc_listen(const char *target, Error **errp)
381 {
382 QemuOptsList *olist = qemu_find_opts("vnc");
383 QemuOpts *opts;
384
385 if (strstr(target, "id=")) {
386 error_setg(errp, "id not supported");
387 return;
388 }
389
390 opts = qemu_opts_find(olist, "default");
391 if (opts) {
392 qemu_opts_del(opts);
393 }
394 opts = vnc_parse(target, errp);
395 if (!opts) {
396 return;
397 }
398
399 vnc_display_open("default", errp);
400 }
401
402 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
403 Error **errp)
404 {
405 if (strcmp(target, "passwd") == 0 || strcmp(target, "password") == 0) {
406 if (!has_arg) {
407 error_setg(errp, QERR_MISSING_PARAMETER, "password");
408 } else {
409 qmp_change_vnc_password(arg, errp);
410 }
411 } else {
412 qmp_change_vnc_listen(target, errp);
413 }
414 }
415 #else
416 void qmp_change_vnc_password(const char *password, Error **errp)
417 {
418 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
419 }
420 static void qmp_change_vnc(const char *target, bool has_arg, const char *arg,
421 Error **errp)
422 {
423 error_setg(errp, QERR_FEATURE_DISABLED, "vnc");
424 }
425 #endif /* !CONFIG_VNC */
426
427 void qmp_change(const char *device, const char *target,
428 bool has_arg, const char *arg, Error **errp)
429 {
430 if (strcmp(device, "vnc") == 0) {
431 qmp_change_vnc(target, has_arg, arg, errp);
432 } else {
433 qmp_blockdev_change_medium(true, device, false, NULL, target,
434 has_arg, arg, false, 0, errp);
435 }
436 }
437
438 static void qom_list_types_tramp(ObjectClass *klass, void *data)
439 {
440 ObjectTypeInfoList *e, **pret = data;
441 ObjectTypeInfo *info;
442
443 info = g_malloc0(sizeof(*info));
444 info->name = g_strdup(object_class_get_name(klass));
445
446 e = g_malloc0(sizeof(*e));
447 e->value = info;
448 e->next = *pret;
449 *pret = e;
450 }
451
452 ObjectTypeInfoList *qmp_qom_list_types(bool has_implements,
453 const char *implements,
454 bool has_abstract,
455 bool abstract,
456 Error **errp)
457 {
458 ObjectTypeInfoList *ret = NULL;
459
460 object_class_foreach(qom_list_types_tramp, implements, abstract, &ret);
461
462 return ret;
463 }
464
465 /* Return a DevicePropertyInfo for a qdev property.
466 *
467 * If a qdev property with the given name does not exist, use the given default
468 * type. If the qdev property info should not be shown, return NULL.
469 *
470 * The caller must free the return value.
471 */
472 static DevicePropertyInfo *make_device_property_info(ObjectClass *klass,
473 const char *name,
474 const char *default_type,
475 const char *description)
476 {
477 DevicePropertyInfo *info;
478 Property *prop;
479
480 do {
481 for (prop = DEVICE_CLASS(klass)->props; prop && prop->name; prop++) {
482 if (strcmp(name, prop->name) != 0) {
483 continue;
484 }
485
486 /*
487 * TODO Properties without a parser are just for dirty hacks.
488 * qdev_prop_ptr is the only such PropertyInfo. It's marked
489 * for removal. This conditional should be removed along with
490 * it.
491 */
492 if (!prop->info->set) {
493 return NULL; /* no way to set it, don't show */
494 }
495
496 info = g_malloc0(sizeof(*info));
497 info->name = g_strdup(prop->name);
498 info->type = g_strdup(prop->info->name);
499 info->has_description = !!prop->info->description;
500 info->description = g_strdup(prop->info->description);
501 return info;
502 }
503 klass = object_class_get_parent(klass);
504 } while (klass != object_class_by_name(TYPE_DEVICE));
505
506 /* Not a qdev property, use the default type */
507 info = g_malloc0(sizeof(*info));
508 info->name = g_strdup(name);
509 info->type = g_strdup(default_type);
510 info->has_description = !!description;
511 info->description = g_strdup(description);
512
513 return info;
514 }
515
516 DevicePropertyInfoList *qmp_device_list_properties(const char *typename,
517 Error **errp)
518 {
519 ObjectClass *klass;
520 Object *obj;
521 ObjectProperty *prop;
522 ObjectPropertyIterator iter;
523 DevicePropertyInfoList *prop_list = NULL;
524
525 klass = object_class_by_name(typename);
526 if (klass == NULL) {
527 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
528 "Device '%s' not found", typename);
529 return NULL;
530 }
531
532 klass = object_class_dynamic_cast(klass, TYPE_DEVICE);
533 if (klass == NULL) {
534 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "name", TYPE_DEVICE);
535 return NULL;
536 }
537
538 if (object_class_is_abstract(klass)) {
539 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "name",
540 "non-abstract device type");
541 return NULL;
542 }
543
544 if (DEVICE_CLASS(klass)->cannot_destroy_with_object_finalize_yet) {
545 error_setg(errp, "Can't list properties of device '%s'", typename);
546 return NULL;
547 }
548
549 obj = object_new(typename);
550
551 object_property_iter_init(&iter, obj);
552 while ((prop = object_property_iter_next(&iter))) {
553 DevicePropertyInfo *info;
554 DevicePropertyInfoList *entry;
555
556 /* Skip Object and DeviceState properties */
557 if (strcmp(prop->name, "type") == 0 ||
558 strcmp(prop->name, "realized") == 0 ||
559 strcmp(prop->name, "hotpluggable") == 0 ||
560 strcmp(prop->name, "hotplugged") == 0 ||
561 strcmp(prop->name, "parent_bus") == 0) {
562 continue;
563 }
564
565 /* Skip legacy properties since they are just string versions of
566 * properties that we already list.
567 */
568 if (strstart(prop->name, "legacy-", NULL)) {
569 continue;
570 }
571
572 info = make_device_property_info(klass, prop->name, prop->type,
573 prop->description);
574 if (!info) {
575 continue;
576 }
577
578 entry = g_malloc0(sizeof(*entry));
579 entry->value = info;
580 entry->next = prop_list;
581 prop_list = entry;
582 }
583
584 object_unref(obj);
585
586 return prop_list;
587 }
588
589 CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp)
590 {
591 return arch_query_cpu_definitions(errp);
592 }
593
594 CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type,
595 CpuModelInfo *model,
596 Error **errp)
597 {
598 return arch_query_cpu_model_expansion(type, model, errp);
599 }
600
601 CpuModelCompareInfo *qmp_query_cpu_model_comparison(CpuModelInfo *modela,
602 CpuModelInfo *modelb,
603 Error **errp)
604 {
605 return arch_query_cpu_model_comparison(modela, modelb, errp);
606 }
607
608 CpuModelBaselineInfo *qmp_query_cpu_model_baseline(CpuModelInfo *modela,
609 CpuModelInfo *modelb,
610 Error **errp)
611 {
612 return arch_query_cpu_model_baseline(modela, modelb, errp);
613 }
614
615 void qmp_add_client(const char *protocol, const char *fdname,
616 bool has_skipauth, bool skipauth, bool has_tls, bool tls,
617 Error **errp)
618 {
619 CharDriverState *s;
620 int fd;
621
622 fd = monitor_get_fd(cur_mon, fdname, errp);
623 if (fd < 0) {
624 return;
625 }
626
627 if (strcmp(protocol, "spice") == 0) {
628 if (!qemu_using_spice(errp)) {
629 close(fd);
630 return;
631 }
632 skipauth = has_skipauth ? skipauth : false;
633 tls = has_tls ? tls : false;
634 if (qemu_spice_display_add_client(fd, skipauth, tls) < 0) {
635 error_setg(errp, "spice failed to add client");
636 close(fd);
637 }
638 return;
639 #ifdef CONFIG_VNC
640 } else if (strcmp(protocol, "vnc") == 0) {
641 skipauth = has_skipauth ? skipauth : false;
642 vnc_display_add_client(NULL, fd, skipauth);
643 return;
644 #endif
645 } else if ((s = qemu_chr_find(protocol)) != NULL) {
646 if (qemu_chr_add_client(s, fd) < 0) {
647 error_setg(errp, "failed to add client");
648 close(fd);
649 return;
650 }
651 return;
652 }
653
654 error_setg(errp, "protocol '%s' is invalid", protocol);
655 close(fd);
656 }
657
658
659 void qmp_object_add(const char *type, const char *id,
660 bool has_props, QObject *props, Error **errp)
661 {
662 QDict *pdict;
663 Visitor *v;
664 Object *obj;
665
666 if (props) {
667 pdict = qobject_to_qdict(props);
668 if (!pdict) {
669 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict");
670 return;
671 }
672 QINCREF(pdict);
673 } else {
674 pdict = qdict_new();
675 }
676
677 v = qobject_input_visitor_new(QOBJECT(pdict), true);
678 obj = user_creatable_add_type(type, id, pdict, v, errp);
679 visit_free(v);
680 if (obj) {
681 object_unref(obj);
682 }
683 QDECREF(pdict);
684 }
685
686 void qmp_object_del(const char *id, Error **errp)
687 {
688 user_creatable_del(id, errp);
689 }
690
691 MemoryDeviceInfoList *qmp_query_memory_devices(Error **errp)
692 {
693 MemoryDeviceInfoList *head = NULL;
694 MemoryDeviceInfoList **prev = &head;
695
696 qmp_pc_dimm_device_list(qdev_get_machine(), &prev);
697
698 return head;
699 }
700
701 ACPIOSTInfoList *qmp_query_acpi_ospm_status(Error **errp)
702 {
703 bool ambig;
704 ACPIOSTInfoList *head = NULL;
705 ACPIOSTInfoList **prev = &head;
706 Object *obj = object_resolve_path_type("", TYPE_ACPI_DEVICE_IF, &ambig);
707
708 if (obj) {
709 AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(obj);
710 AcpiDeviceIf *adev = ACPI_DEVICE_IF(obj);
711
712 adevc->ospm_status(adev, &prev);
713 } else {
714 error_setg(errp, "command is not supported, missing ACPI device");
715 }
716
717 return head;
718 }