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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-common.h" | |
17 | #include "sysemu.h" | |
18 | #include "qmp-commands.h" | |
19 | #include "ui/qemu-spice.h" | |
20 | #include "ui/vnc.h" | |
21 | #include "kvm.h" | |
22 | #include "arch_init.h" | |
23 | #include "hw/qdev.h" | |
24 | #include "qapi/qmp-input-visitor.h" | |
25 | #include "qapi/qmp-output-visitor.h" | |
26 | ||
27 | NameInfo *qmp_query_name(Error **errp) | |
28 | { | |
29 | NameInfo *info = g_malloc0(sizeof(*info)); | |
30 | ||
31 | if (qemu_name) { | |
32 | info->has_name = true; | |
33 | info->name = g_strdup(qemu_name); | |
34 | } | |
35 | ||
36 | return info; | |
37 | } | |
38 | ||
39 | VersionInfo *qmp_query_version(Error **err) | |
40 | { | |
41 | VersionInfo *info = g_malloc0(sizeof(*info)); | |
42 | const char *version = QEMU_VERSION; | |
43 | char *tmp; | |
44 | ||
45 | info->qemu.major = strtol(version, &tmp, 10); | |
46 | tmp++; | |
47 | info->qemu.minor = strtol(tmp, &tmp, 10); | |
48 | tmp++; | |
49 | info->qemu.micro = strtol(tmp, &tmp, 10); | |
50 | info->package = g_strdup(QEMU_PKGVERSION); | |
51 | ||
52 | return info; | |
53 | } | |
54 | ||
55 | KvmInfo *qmp_query_kvm(Error **errp) | |
56 | { | |
57 | KvmInfo *info = g_malloc0(sizeof(*info)); | |
58 | ||
59 | info->enabled = kvm_enabled(); | |
60 | info->present = kvm_available(); | |
61 | ||
62 | return info; | |
63 | } | |
64 | ||
65 | UuidInfo *qmp_query_uuid(Error **errp) | |
66 | { | |
67 | UuidInfo *info = g_malloc0(sizeof(*info)); | |
68 | char uuid[64]; | |
69 | ||
70 | snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1], | |
71 | qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5], | |
72 | qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9], | |
73 | qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13], | |
74 | qemu_uuid[14], qemu_uuid[15]); | |
75 | ||
76 | info->UUID = g_strdup(uuid); | |
77 | return info; | |
78 | } | |
79 | ||
80 | void qmp_quit(Error **err) | |
81 | { | |
82 | no_shutdown = 0; | |
83 | qemu_system_shutdown_request(); | |
84 | } | |
85 | ||
86 | void qmp_stop(Error **errp) | |
87 | { | |
88 | vm_stop(RUN_STATE_PAUSED); | |
89 | } | |
90 | ||
91 | void qmp_system_reset(Error **errp) | |
92 | { | |
93 | qemu_system_reset_request(); | |
94 | } | |
95 | ||
96 | void qmp_system_powerdown(Error **erp) | |
97 | { | |
98 | qemu_system_powerdown_request(); | |
99 | } | |
100 | ||
101 | void qmp_cpu(int64_t index, Error **errp) | |
102 | { | |
103 | /* Just do nothing */ | |
104 | } | |
105 | ||
106 | #ifndef CONFIG_VNC | |
107 | /* If VNC support is enabled, the "true" query-vnc command is | |
108 | defined in the VNC subsystem */ | |
109 | VncInfo *qmp_query_vnc(Error **errp) | |
110 | { | |
111 | error_set(errp, QERR_FEATURE_DISABLED, "vnc"); | |
112 | return NULL; | |
113 | }; | |
114 | #endif | |
115 | ||
116 | #ifndef CONFIG_SPICE | |
117 | /* If SPICE support is enabled, the "true" query-spice command is | |
118 | defined in the SPICE subsystem. Also note that we use a small | |
119 | trick to maintain query-spice's original behavior, which is not | |
120 | to be available in the namespace if SPICE is not compiled in */ | |
121 | SpiceInfo *qmp_query_spice(Error **errp) | |
122 | { | |
123 | error_set(errp, QERR_COMMAND_NOT_FOUND, "query-spice"); | |
124 | return NULL; | |
125 | }; | |
126 | #endif | |
127 | ||
128 | static void iostatus_bdrv_it(void *opaque, BlockDriverState *bs) | |
129 | { | |
130 | bdrv_iostatus_reset(bs); | |
131 | } | |
132 | ||
133 | static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs) | |
134 | { | |
135 | Error **err = opaque; | |
136 | ||
137 | if (!error_is_set(err) && bdrv_key_required(bs)) { | |
138 | error_set(err, QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs)); | |
139 | } | |
140 | } | |
141 | ||
142 | void qmp_cont(Error **errp) | |
143 | { | |
144 | Error *local_err = NULL; | |
145 | ||
146 | if (runstate_check(RUN_STATE_INMIGRATE)) { | |
147 | error_set(errp, QERR_MIGRATION_EXPECTED); | |
148 | return; | |
149 | } else if (runstate_check(RUN_STATE_INTERNAL_ERROR) || | |
150 | runstate_check(RUN_STATE_SHUTDOWN)) { | |
151 | error_set(errp, QERR_RESET_REQUIRED); | |
152 | return; | |
153 | } | |
154 | ||
155 | bdrv_iterate(iostatus_bdrv_it, NULL); | |
156 | bdrv_iterate(encrypted_bdrv_it, &local_err); | |
157 | if (local_err) { | |
158 | error_propagate(errp, local_err); | |
159 | return; | |
160 | } | |
161 | ||
162 | vm_start(); | |
163 | } | |
164 | ||
165 | DevicePropertyInfoList *qmp_qom_list(const char *path, Error **errp) | |
166 | { | |
167 | DeviceState *dev; | |
168 | bool ambiguous = false; | |
169 | DevicePropertyInfoList *props = NULL; | |
170 | DeviceProperty *prop; | |
171 | ||
172 | dev = qdev_resolve_path(path, &ambiguous); | |
173 | if (dev == NULL) { | |
174 | error_set(errp, QERR_DEVICE_NOT_FOUND, path); | |
175 | return NULL; | |
176 | } | |
177 | ||
178 | QTAILQ_FOREACH(prop, &dev->properties, node) { | |
179 | DevicePropertyInfoList *entry = g_malloc0(sizeof(*entry)); | |
180 | ||
181 | entry->value = g_malloc0(sizeof(DevicePropertyInfo)); | |
182 | entry->next = props; | |
183 | props = entry; | |
184 | ||
185 | entry->value->name = g_strdup(prop->name); | |
186 | entry->value->type = g_strdup(prop->type); | |
187 | } | |
188 | ||
189 | return props; | |
190 | } | |
191 | ||
192 | /* FIXME: teach qapi about how to pass through Visitors */ | |
193 | int qmp_qom_set(Monitor *mon, const QDict *qdict, QObject **ret) | |
194 | { | |
195 | const char *path = qdict_get_str(qdict, "path"); | |
196 | const char *property = qdict_get_str(qdict, "property"); | |
197 | QObject *value = qdict_get(qdict, "value"); | |
198 | Error *local_err = NULL; | |
199 | QmpInputVisitor *mi; | |
200 | DeviceState *dev; | |
201 | ||
202 | dev = qdev_resolve_path(path, NULL); | |
203 | if (!dev) { | |
204 | error_set(&local_err, QERR_DEVICE_NOT_FOUND, path); | |
205 | goto out; | |
206 | } | |
207 | ||
208 | mi = qmp_input_visitor_new(value); | |
209 | qdev_property_set(dev, qmp_input_get_visitor(mi), property, &local_err); | |
210 | ||
211 | qmp_input_visitor_cleanup(mi); | |
212 | ||
213 | out: | |
214 | if (local_err) { | |
215 | qerror_report_err(local_err); | |
216 | error_free(local_err); | |
217 | return -1; | |
218 | } | |
219 | ||
220 | return 0; | |
221 | } | |
222 | ||
223 | int qmp_qom_get(Monitor *mon, const QDict *qdict, QObject **ret) | |
224 | { | |
225 | const char *path = qdict_get_str(qdict, "path"); | |
226 | const char *property = qdict_get_str(qdict, "property"); | |
227 | Error *local_err = NULL; | |
228 | QmpOutputVisitor *mo; | |
229 | DeviceState *dev; | |
230 | ||
231 | dev = qdev_resolve_path(path, NULL); | |
232 | if (!dev) { | |
233 | error_set(&local_err, QERR_DEVICE_NOT_FOUND, path); | |
234 | goto out; | |
235 | } | |
236 | ||
237 | mo = qmp_output_visitor_new(); | |
238 | qdev_property_get(dev, qmp_output_get_visitor(mo), property, &local_err); | |
239 | if (!local_err) { | |
240 | *ret = qmp_output_get_qobject(mo); | |
241 | } | |
242 | ||
243 | qmp_output_visitor_cleanup(mo); | |
244 | ||
245 | out: | |
246 | if (local_err) { | |
247 | qerror_report_err(local_err); | |
248 | error_free(local_err); | |
249 | return -1; | |
250 | } | |
251 | ||
252 | return 0; | |
253 | } | |
254 | ||
255 | void qmp_set_password(const char *protocol, const char *password, | |
256 | bool has_connected, const char *connected, Error **errp) | |
257 | { | |
258 | int disconnect_if_connected = 0; | |
259 | int fail_if_connected = 0; | |
260 | int rc; | |
261 | ||
262 | if (has_connected) { | |
263 | if (strcmp(connected, "fail") == 0) { | |
264 | fail_if_connected = 1; | |
265 | } else if (strcmp(connected, "disconnect") == 0) { | |
266 | disconnect_if_connected = 1; | |
267 | } else if (strcmp(connected, "keep") == 0) { | |
268 | /* nothing */ | |
269 | } else { | |
270 | error_set(errp, QERR_INVALID_PARAMETER, "connected"); | |
271 | return; | |
272 | } | |
273 | } | |
274 | ||
275 | if (strcmp(protocol, "spice") == 0) { | |
276 | if (!using_spice) { | |
277 | /* correct one? spice isn't a device ,,, */ | |
278 | error_set(errp, QERR_DEVICE_NOT_ACTIVE, "spice"); | |
279 | return; | |
280 | } | |
281 | rc = qemu_spice_set_passwd(password, fail_if_connected, | |
282 | disconnect_if_connected); | |
283 | if (rc != 0) { | |
284 | error_set(errp, QERR_SET_PASSWD_FAILED); | |
285 | } | |
286 | return; | |
287 | } | |
288 | ||
289 | if (strcmp(protocol, "vnc") == 0) { | |
290 | if (fail_if_connected || disconnect_if_connected) { | |
291 | /* vnc supports "connected=keep" only */ | |
292 | error_set(errp, QERR_INVALID_PARAMETER, "connected"); | |
293 | return; | |
294 | } | |
295 | /* Note that setting an empty password will not disable login through | |
296 | * this interface. */ | |
297 | rc = vnc_display_password(NULL, password); | |
298 | if (rc < 0) { | |
299 | error_set(errp, QERR_SET_PASSWD_FAILED); | |
300 | } | |
301 | return; | |
302 | } | |
303 | ||
304 | error_set(errp, QERR_INVALID_PARAMETER, "protocol"); | |
305 | } | |
306 | ||
307 | void qmp_expire_password(const char *protocol, const char *whenstr, | |
308 | Error **errp) | |
309 | { | |
310 | time_t when; | |
311 | int rc; | |
312 | ||
313 | if (strcmp(whenstr, "now") == 0) { | |
314 | when = 0; | |
315 | } else if (strcmp(whenstr, "never") == 0) { | |
316 | when = TIME_MAX; | |
317 | } else if (whenstr[0] == '+') { | |
318 | when = time(NULL) + strtoull(whenstr+1, NULL, 10); | |
319 | } else { | |
320 | when = strtoull(whenstr, NULL, 10); | |
321 | } | |
322 | ||
323 | if (strcmp(protocol, "spice") == 0) { | |
324 | if (!using_spice) { | |
325 | /* correct one? spice isn't a device ,,, */ | |
326 | error_set(errp, QERR_DEVICE_NOT_ACTIVE, "spice"); | |
327 | return; | |
328 | } | |
329 | rc = qemu_spice_set_pw_expire(when); | |
330 | if (rc != 0) { | |
331 | error_set(errp, QERR_SET_PASSWD_FAILED); | |
332 | } | |
333 | return; | |
334 | } | |
335 | ||
336 | if (strcmp(protocol, "vnc") == 0) { | |
337 | rc = vnc_display_pw_expire(NULL, when); | |
338 | if (rc != 0) { | |
339 | error_set(errp, QERR_SET_PASSWD_FAILED); | |
340 | } | |
341 | return; | |
342 | } | |
343 | ||
344 | error_set(errp, QERR_INVALID_PARAMETER, "protocol"); | |
345 | } |