]>
Commit | Line | Data |
---|---|---|
1 | /* | |
2 | * QEMU monitor | |
3 | * | |
4 | * Copyright (c) 2003-2004 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "qemu/osdep.h" | |
25 | #include <dirent.h> | |
26 | #include "qemu-common.h" | |
27 | #include "cpu.h" | |
28 | #include "hw/hw.h" | |
29 | #include "monitor/qdev.h" | |
30 | #include "hw/usb.h" | |
31 | #include "hw/i386/pc.h" | |
32 | #include "hw/pci/pci.h" | |
33 | #include "sysemu/watchdog.h" | |
34 | #include "hw/loader.h" | |
35 | #include "exec/gdbstub.h" | |
36 | #include "net/net.h" | |
37 | #include "net/slirp.h" | |
38 | #include "sysemu/char.h" | |
39 | #include "ui/qemu-spice.h" | |
40 | #include "sysemu/sysemu.h" | |
41 | #include "sysemu/numa.h" | |
42 | #include "monitor/monitor.h" | |
43 | #include "qemu/config-file.h" | |
44 | #include "qemu/readline.h" | |
45 | #include "ui/console.h" | |
46 | #include "ui/input.h" | |
47 | #include "sysemu/blockdev.h" | |
48 | #include "sysemu/block-backend.h" | |
49 | #include "audio/audio.h" | |
50 | #include "disas/disas.h" | |
51 | #include "sysemu/balloon.h" | |
52 | #include "qemu/timer.h" | |
53 | #include "migration/migration.h" | |
54 | #include "sysemu/hw_accel.h" | |
55 | #include "qemu/acl.h" | |
56 | #include "sysemu/tpm.h" | |
57 | #include "qapi/qmp/qerror.h" | |
58 | #include "qapi/qmp/types.h" | |
59 | #include "qapi/qmp/qjson.h" | |
60 | #include "qapi/qmp/json-streamer.h" | |
61 | #include "qapi/qmp/json-parser.h" | |
62 | #include "qom/object_interfaces.h" | |
63 | #include "trace-root.h" | |
64 | #include "trace/control.h" | |
65 | #include "monitor/hmp-target.h" | |
66 | #ifdef CONFIG_TRACE_SIMPLE | |
67 | #include "trace/simple.h" | |
68 | #endif | |
69 | #include "exec/memory.h" | |
70 | #include "exec/exec-all.h" | |
71 | #include "qemu/log.h" | |
72 | #include "qmp-commands.h" | |
73 | #include "hmp.h" | |
74 | #include "qemu/thread.h" | |
75 | #include "block/qapi.h" | |
76 | #include "qapi/qmp-event.h" | |
77 | #include "qapi-event.h" | |
78 | #include "qmp-introspect.h" | |
79 | #include "sysemu/qtest.h" | |
80 | #include "qemu/cutils.h" | |
81 | #include "qapi/qmp/dispatch.h" | |
82 | ||
83 | #if defined(TARGET_S390X) | |
84 | #include "hw/s390x/storage-keys.h" | |
85 | #endif | |
86 | ||
87 | /* | |
88 | * Supported types: | |
89 | * | |
90 | * 'F' filename | |
91 | * 'B' block device name | |
92 | * 's' string (accept optional quote) | |
93 | * 'S' it just appends the rest of the string (accept optional quote) | |
94 | * 'O' option string of the form NAME=VALUE,... | |
95 | * parsed according to QemuOptsList given by its name | |
96 | * Example: 'device:O' uses qemu_device_opts. | |
97 | * Restriction: only lists with empty desc are supported | |
98 | * TODO lift the restriction | |
99 | * 'i' 32 bit integer | |
100 | * 'l' target long (32 or 64 bit) | |
101 | * 'M' Non-negative target long (32 or 64 bit), in user mode the | |
102 | * value is multiplied by 2^20 (think Mebibyte) | |
103 | * 'o' octets (aka bytes) | |
104 | * user mode accepts an optional E, e, P, p, T, t, G, g, M, m, | |
105 | * K, k suffix, which multiplies the value by 2^60 for suffixes E | |
106 | * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t, | |
107 | * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k | |
108 | * 'T' double | |
109 | * user mode accepts an optional ms, us, ns suffix, | |
110 | * which divides the value by 1e3, 1e6, 1e9, respectively | |
111 | * '/' optional gdb-like print format (like "/10x") | |
112 | * | |
113 | * '?' optional type (for all types, except '/') | |
114 | * '.' other form of optional type (for 'i' and 'l') | |
115 | * 'b' boolean | |
116 | * user mode accepts "on" or "off" | |
117 | * '-' optional parameter (eg. '-f') | |
118 | * | |
119 | */ | |
120 | ||
121 | typedef struct mon_cmd_t { | |
122 | const char *name; | |
123 | const char *args_type; | |
124 | const char *params; | |
125 | const char *help; | |
126 | void (*cmd)(Monitor *mon, const QDict *qdict); | |
127 | /* @sub_table is a list of 2nd level of commands. If it does not exist, | |
128 | * cmd should be used. If it exists, sub_table[?].cmd should be | |
129 | * used, and cmd of 1st level plays the role of help function. | |
130 | */ | |
131 | struct mon_cmd_t *sub_table; | |
132 | void (*command_completion)(ReadLineState *rs, int nb_args, const char *str); | |
133 | } mon_cmd_t; | |
134 | ||
135 | /* file descriptors passed via SCM_RIGHTS */ | |
136 | typedef struct mon_fd_t mon_fd_t; | |
137 | struct mon_fd_t { | |
138 | char *name; | |
139 | int fd; | |
140 | QLIST_ENTRY(mon_fd_t) next; | |
141 | }; | |
142 | ||
143 | /* file descriptor associated with a file descriptor set */ | |
144 | typedef struct MonFdsetFd MonFdsetFd; | |
145 | struct MonFdsetFd { | |
146 | int fd; | |
147 | bool removed; | |
148 | char *opaque; | |
149 | QLIST_ENTRY(MonFdsetFd) next; | |
150 | }; | |
151 | ||
152 | /* file descriptor set containing fds passed via SCM_RIGHTS */ | |
153 | typedef struct MonFdset MonFdset; | |
154 | struct MonFdset { | |
155 | int64_t id; | |
156 | QLIST_HEAD(, MonFdsetFd) fds; | |
157 | QLIST_HEAD(, MonFdsetFd) dup_fds; | |
158 | QLIST_ENTRY(MonFdset) next; | |
159 | }; | |
160 | ||
161 | typedef struct { | |
162 | JSONMessageParser parser; | |
163 | /* | |
164 | * When a client connects, we're in capabilities negotiation mode. | |
165 | * When command qmp_capabilities succeeds, we go into command | |
166 | * mode. | |
167 | */ | |
168 | bool in_command_mode; /* are we in command mode? */ | |
169 | } MonitorQMP; | |
170 | ||
171 | /* | |
172 | * To prevent flooding clients, events can be throttled. The | |
173 | * throttling is calculated globally, rather than per-Monitor | |
174 | * instance. | |
175 | */ | |
176 | typedef struct MonitorQAPIEventState { | |
177 | QAPIEvent event; /* Throttling state for this event type and... */ | |
178 | QDict *data; /* ... data, see qapi_event_throttle_equal() */ | |
179 | QEMUTimer *timer; /* Timer for handling delayed events */ | |
180 | QDict *qdict; /* Delayed event (if any) */ | |
181 | } MonitorQAPIEventState; | |
182 | ||
183 | typedef struct { | |
184 | int64_t rate; /* Minimum time (in ns) between two events */ | |
185 | } MonitorQAPIEventConf; | |
186 | ||
187 | struct Monitor { | |
188 | CharBackend chr; | |
189 | int reset_seen; | |
190 | int flags; | |
191 | int suspend_cnt; | |
192 | bool skip_flush; | |
193 | ||
194 | QemuMutex out_lock; | |
195 | QString *outbuf; | |
196 | guint out_watch; | |
197 | ||
198 | /* Read under either BQL or out_lock, written with BQL+out_lock. */ | |
199 | int mux_out; | |
200 | ||
201 | ReadLineState *rs; | |
202 | MonitorQMP qmp; | |
203 | CPUState *mon_cpu; | |
204 | BlockCompletionFunc *password_completion_cb; | |
205 | void *password_opaque; | |
206 | mon_cmd_t *cmd_table; | |
207 | QLIST_HEAD(,mon_fd_t) fds; | |
208 | QLIST_ENTRY(Monitor) entry; | |
209 | }; | |
210 | ||
211 | /* QMP checker flags */ | |
212 | #define QMP_ACCEPT_UNKNOWNS 1 | |
213 | ||
214 | /* Protects mon_list, monitor_event_state. */ | |
215 | static QemuMutex monitor_lock; | |
216 | ||
217 | static QLIST_HEAD(mon_list, Monitor) mon_list; | |
218 | static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets; | |
219 | static int mon_refcount; | |
220 | ||
221 | static mon_cmd_t mon_cmds[]; | |
222 | static mon_cmd_t info_cmds[]; | |
223 | ||
224 | Monitor *cur_mon; | |
225 | ||
226 | static QEMUClockType event_clock_type = QEMU_CLOCK_REALTIME; | |
227 | ||
228 | static void monitor_command_cb(void *opaque, const char *cmdline, | |
229 | void *readline_opaque); | |
230 | ||
231 | /** | |
232 | * Is @mon a QMP monitor? | |
233 | */ | |
234 | static inline bool monitor_is_qmp(const Monitor *mon) | |
235 | { | |
236 | return (mon->flags & MONITOR_USE_CONTROL); | |
237 | } | |
238 | ||
239 | /** | |
240 | * Is the current monitor, if any, a QMP monitor? | |
241 | */ | |
242 | bool monitor_cur_is_qmp(void) | |
243 | { | |
244 | return cur_mon && monitor_is_qmp(cur_mon); | |
245 | } | |
246 | ||
247 | void monitor_read_command(Monitor *mon, int show_prompt) | |
248 | { | |
249 | if (!mon->rs) | |
250 | return; | |
251 | ||
252 | readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL); | |
253 | if (show_prompt) | |
254 | readline_show_prompt(mon->rs); | |
255 | } | |
256 | ||
257 | int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func, | |
258 | void *opaque) | |
259 | { | |
260 | if (mon->rs) { | |
261 | readline_start(mon->rs, "Password: ", 1, readline_func, opaque); | |
262 | /* prompt is printed on return from the command handler */ | |
263 | return 0; | |
264 | } else { | |
265 | monitor_printf(mon, "terminal does not support password prompting\n"); | |
266 | return -ENOTTY; | |
267 | } | |
268 | } | |
269 | ||
270 | static void monitor_flush_locked(Monitor *mon); | |
271 | ||
272 | static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond, | |
273 | void *opaque) | |
274 | { | |
275 | Monitor *mon = opaque; | |
276 | ||
277 | qemu_mutex_lock(&mon->out_lock); | |
278 | mon->out_watch = 0; | |
279 | monitor_flush_locked(mon); | |
280 | qemu_mutex_unlock(&mon->out_lock); | |
281 | return FALSE; | |
282 | } | |
283 | ||
284 | /* Called with mon->out_lock held. */ | |
285 | static void monitor_flush_locked(Monitor *mon) | |
286 | { | |
287 | int rc; | |
288 | size_t len; | |
289 | const char *buf; | |
290 | ||
291 | if (mon->skip_flush) { | |
292 | return; | |
293 | } | |
294 | ||
295 | buf = qstring_get_str(mon->outbuf); | |
296 | len = qstring_get_length(mon->outbuf); | |
297 | ||
298 | if (len && !mon->mux_out) { | |
299 | rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len); | |
300 | if ((rc < 0 && errno != EAGAIN) || (rc == len)) { | |
301 | /* all flushed or error */ | |
302 | QDECREF(mon->outbuf); | |
303 | mon->outbuf = qstring_new(); | |
304 | return; | |
305 | } | |
306 | if (rc > 0) { | |
307 | /* partial write */ | |
308 | QString *tmp = qstring_from_str(buf + rc); | |
309 | QDECREF(mon->outbuf); | |
310 | mon->outbuf = tmp; | |
311 | } | |
312 | if (mon->out_watch == 0) { | |
313 | mon->out_watch = | |
314 | qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP, | |
315 | monitor_unblocked, mon); | |
316 | } | |
317 | } | |
318 | } | |
319 | ||
320 | void monitor_flush(Monitor *mon) | |
321 | { | |
322 | qemu_mutex_lock(&mon->out_lock); | |
323 | monitor_flush_locked(mon); | |
324 | qemu_mutex_unlock(&mon->out_lock); | |
325 | } | |
326 | ||
327 | /* flush at every end of line */ | |
328 | static void monitor_puts(Monitor *mon, const char *str) | |
329 | { | |
330 | char c; | |
331 | ||
332 | qemu_mutex_lock(&mon->out_lock); | |
333 | for(;;) { | |
334 | c = *str++; | |
335 | if (c == '\0') | |
336 | break; | |
337 | if (c == '\n') { | |
338 | qstring_append_chr(mon->outbuf, '\r'); | |
339 | } | |
340 | qstring_append_chr(mon->outbuf, c); | |
341 | if (c == '\n') { | |
342 | monitor_flush_locked(mon); | |
343 | } | |
344 | } | |
345 | qemu_mutex_unlock(&mon->out_lock); | |
346 | } | |
347 | ||
348 | void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap) | |
349 | { | |
350 | char *buf; | |
351 | ||
352 | if (!mon) | |
353 | return; | |
354 | ||
355 | if (monitor_is_qmp(mon)) { | |
356 | return; | |
357 | } | |
358 | ||
359 | buf = g_strdup_vprintf(fmt, ap); | |
360 | monitor_puts(mon, buf); | |
361 | g_free(buf); | |
362 | } | |
363 | ||
364 | void monitor_printf(Monitor *mon, const char *fmt, ...) | |
365 | { | |
366 | va_list ap; | |
367 | va_start(ap, fmt); | |
368 | monitor_vprintf(mon, fmt, ap); | |
369 | va_end(ap); | |
370 | } | |
371 | ||
372 | int monitor_fprintf(FILE *stream, const char *fmt, ...) | |
373 | { | |
374 | va_list ap; | |
375 | va_start(ap, fmt); | |
376 | monitor_vprintf((Monitor *)stream, fmt, ap); | |
377 | va_end(ap); | |
378 | return 0; | |
379 | } | |
380 | ||
381 | static void monitor_json_emitter(Monitor *mon, const QObject *data) | |
382 | { | |
383 | QString *json; | |
384 | ||
385 | json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) : | |
386 | qobject_to_json(data); | |
387 | assert(json != NULL); | |
388 | ||
389 | qstring_append_chr(json, '\n'); | |
390 | monitor_puts(mon, qstring_get_str(json)); | |
391 | ||
392 | QDECREF(json); | |
393 | } | |
394 | ||
395 | static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = { | |
396 | /* Limit guest-triggerable events to 1 per second */ | |
397 | [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS }, | |
398 | [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS }, | |
399 | [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS }, | |
400 | [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS }, | |
401 | [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS }, | |
402 | [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS }, | |
403 | }; | |
404 | ||
405 | GHashTable *monitor_qapi_event_state; | |
406 | ||
407 | /* | |
408 | * Emits the event to every monitor instance, @event is only used for trace | |
409 | * Called with monitor_lock held. | |
410 | */ | |
411 | static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict) | |
412 | { | |
413 | Monitor *mon; | |
414 | ||
415 | trace_monitor_protocol_event_emit(event, qdict); | |
416 | QLIST_FOREACH(mon, &mon_list, entry) { | |
417 | if (monitor_is_qmp(mon) && mon->qmp.in_command_mode) { | |
418 | monitor_json_emitter(mon, QOBJECT(qdict)); | |
419 | } | |
420 | } | |
421 | } | |
422 | ||
423 | static void monitor_qapi_event_handler(void *opaque); | |
424 | ||
425 | /* | |
426 | * Queue a new event for emission to Monitor instances, | |
427 | * applying any rate limiting if required. | |
428 | */ | |
429 | static void | |
430 | monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp) | |
431 | { | |
432 | MonitorQAPIEventConf *evconf; | |
433 | MonitorQAPIEventState *evstate; | |
434 | ||
435 | assert(event < QAPI_EVENT__MAX); | |
436 | evconf = &monitor_qapi_event_conf[event]; | |
437 | trace_monitor_protocol_event_queue(event, qdict, evconf->rate); | |
438 | ||
439 | qemu_mutex_lock(&monitor_lock); | |
440 | ||
441 | if (!evconf->rate) { | |
442 | /* Unthrottled event */ | |
443 | monitor_qapi_event_emit(event, qdict); | |
444 | } else { | |
445 | QDict *data = qobject_to_qdict(qdict_get(qdict, "data")); | |
446 | MonitorQAPIEventState key = { .event = event, .data = data }; | |
447 | ||
448 | evstate = g_hash_table_lookup(monitor_qapi_event_state, &key); | |
449 | assert(!evstate || timer_pending(evstate->timer)); | |
450 | ||
451 | if (evstate) { | |
452 | /* | |
453 | * Timer is pending for (at least) evconf->rate ns after | |
454 | * last send. Store event for sending when timer fires, | |
455 | * replacing a prior stored event if any. | |
456 | */ | |
457 | QDECREF(evstate->qdict); | |
458 | evstate->qdict = qdict; | |
459 | QINCREF(evstate->qdict); | |
460 | } else { | |
461 | /* | |
462 | * Last send was (at least) evconf->rate ns ago. | |
463 | * Send immediately, and arm the timer to call | |
464 | * monitor_qapi_event_handler() in evconf->rate ns. Any | |
465 | * events arriving before then will be delayed until then. | |
466 | */ | |
467 | int64_t now = qemu_clock_get_ns(event_clock_type); | |
468 | ||
469 | monitor_qapi_event_emit(event, qdict); | |
470 | ||
471 | evstate = g_new(MonitorQAPIEventState, 1); | |
472 | evstate->event = event; | |
473 | evstate->data = data; | |
474 | QINCREF(evstate->data); | |
475 | evstate->qdict = NULL; | |
476 | evstate->timer = timer_new_ns(event_clock_type, | |
477 | monitor_qapi_event_handler, | |
478 | evstate); | |
479 | g_hash_table_add(monitor_qapi_event_state, evstate); | |
480 | timer_mod_ns(evstate->timer, now + evconf->rate); | |
481 | } | |
482 | } | |
483 | ||
484 | qemu_mutex_unlock(&monitor_lock); | |
485 | } | |
486 | ||
487 | /* | |
488 | * This function runs evconf->rate ns after sending a throttled | |
489 | * event. | |
490 | * If another event has since been stored, send it. | |
491 | */ | |
492 | static void monitor_qapi_event_handler(void *opaque) | |
493 | { | |
494 | MonitorQAPIEventState *evstate = opaque; | |
495 | MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event]; | |
496 | ||
497 | trace_monitor_protocol_event_handler(evstate->event, evstate->qdict); | |
498 | qemu_mutex_lock(&monitor_lock); | |
499 | ||
500 | if (evstate->qdict) { | |
501 | int64_t now = qemu_clock_get_ns(event_clock_type); | |
502 | ||
503 | monitor_qapi_event_emit(evstate->event, evstate->qdict); | |
504 | QDECREF(evstate->qdict); | |
505 | evstate->qdict = NULL; | |
506 | timer_mod_ns(evstate->timer, now + evconf->rate); | |
507 | } else { | |
508 | g_hash_table_remove(monitor_qapi_event_state, evstate); | |
509 | QDECREF(evstate->data); | |
510 | timer_free(evstate->timer); | |
511 | g_free(evstate); | |
512 | } | |
513 | ||
514 | qemu_mutex_unlock(&monitor_lock); | |
515 | } | |
516 | ||
517 | static unsigned int qapi_event_throttle_hash(const void *key) | |
518 | { | |
519 | const MonitorQAPIEventState *evstate = key; | |
520 | unsigned int hash = evstate->event * 255; | |
521 | ||
522 | if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) { | |
523 | hash += g_str_hash(qdict_get_str(evstate->data, "id")); | |
524 | } | |
525 | ||
526 | if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) { | |
527 | hash += g_str_hash(qdict_get_str(evstate->data, "node-name")); | |
528 | } | |
529 | ||
530 | return hash; | |
531 | } | |
532 | ||
533 | static gboolean qapi_event_throttle_equal(const void *a, const void *b) | |
534 | { | |
535 | const MonitorQAPIEventState *eva = a; | |
536 | const MonitorQAPIEventState *evb = b; | |
537 | ||
538 | if (eva->event != evb->event) { | |
539 | return FALSE; | |
540 | } | |
541 | ||
542 | if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) { | |
543 | return !strcmp(qdict_get_str(eva->data, "id"), | |
544 | qdict_get_str(evb->data, "id")); | |
545 | } | |
546 | ||
547 | if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) { | |
548 | return !strcmp(qdict_get_str(eva->data, "node-name"), | |
549 | qdict_get_str(evb->data, "node-name")); | |
550 | } | |
551 | ||
552 | return TRUE; | |
553 | } | |
554 | ||
555 | static void monitor_qapi_event_init(void) | |
556 | { | |
557 | if (qtest_enabled()) { | |
558 | event_clock_type = QEMU_CLOCK_VIRTUAL; | |
559 | } | |
560 | ||
561 | monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash, | |
562 | qapi_event_throttle_equal); | |
563 | qmp_event_set_func_emit(monitor_qapi_event_queue); | |
564 | } | |
565 | ||
566 | void qmp_qmp_capabilities(Error **errp) | |
567 | { | |
568 | cur_mon->qmp.in_command_mode = true; | |
569 | } | |
570 | ||
571 | static void handle_hmp_command(Monitor *mon, const char *cmdline); | |
572 | ||
573 | static void monitor_data_init(Monitor *mon) | |
574 | { | |
575 | memset(mon, 0, sizeof(Monitor)); | |
576 | qemu_mutex_init(&mon->out_lock); | |
577 | mon->outbuf = qstring_new(); | |
578 | /* Use *mon_cmds by default. */ | |
579 | mon->cmd_table = mon_cmds; | |
580 | } | |
581 | ||
582 | static void monitor_data_destroy(Monitor *mon) | |
583 | { | |
584 | qemu_chr_fe_deinit(&mon->chr); | |
585 | if (monitor_is_qmp(mon)) { | |
586 | json_message_parser_destroy(&mon->qmp.parser); | |
587 | } | |
588 | g_free(mon->rs); | |
589 | QDECREF(mon->outbuf); | |
590 | qemu_mutex_destroy(&mon->out_lock); | |
591 | } | |
592 | ||
593 | char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index, | |
594 | int64_t cpu_index, Error **errp) | |
595 | { | |
596 | char *output = NULL; | |
597 | Monitor *old_mon, hmp; | |
598 | ||
599 | monitor_data_init(&hmp); | |
600 | hmp.skip_flush = true; | |
601 | ||
602 | old_mon = cur_mon; | |
603 | cur_mon = &hmp; | |
604 | ||
605 | if (has_cpu_index) { | |
606 | int ret = monitor_set_cpu(cpu_index); | |
607 | if (ret < 0) { | |
608 | cur_mon = old_mon; | |
609 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index", | |
610 | "a CPU number"); | |
611 | goto out; | |
612 | } | |
613 | } | |
614 | ||
615 | handle_hmp_command(&hmp, command_line); | |
616 | cur_mon = old_mon; | |
617 | ||
618 | qemu_mutex_lock(&hmp.out_lock); | |
619 | if (qstring_get_length(hmp.outbuf) > 0) { | |
620 | output = g_strdup(qstring_get_str(hmp.outbuf)); | |
621 | } else { | |
622 | output = g_strdup(""); | |
623 | } | |
624 | qemu_mutex_unlock(&hmp.out_lock); | |
625 | ||
626 | out: | |
627 | monitor_data_destroy(&hmp); | |
628 | return output; | |
629 | } | |
630 | ||
631 | static int compare_cmd(const char *name, const char *list) | |
632 | { | |
633 | const char *p, *pstart; | |
634 | int len; | |
635 | len = strlen(name); | |
636 | p = list; | |
637 | for(;;) { | |
638 | pstart = p; | |
639 | p = strchr(p, '|'); | |
640 | if (!p) | |
641 | p = pstart + strlen(pstart); | |
642 | if ((p - pstart) == len && !memcmp(pstart, name, len)) | |
643 | return 1; | |
644 | if (*p == '\0') | |
645 | break; | |
646 | p++; | |
647 | } | |
648 | return 0; | |
649 | } | |
650 | ||
651 | static int get_str(char *buf, int buf_size, const char **pp) | |
652 | { | |
653 | const char *p; | |
654 | char *q; | |
655 | int c; | |
656 | ||
657 | q = buf; | |
658 | p = *pp; | |
659 | while (qemu_isspace(*p)) { | |
660 | p++; | |
661 | } | |
662 | if (*p == '\0') { | |
663 | fail: | |
664 | *q = '\0'; | |
665 | *pp = p; | |
666 | return -1; | |
667 | } | |
668 | if (*p == '\"') { | |
669 | p++; | |
670 | while (*p != '\0' && *p != '\"') { | |
671 | if (*p == '\\') { | |
672 | p++; | |
673 | c = *p++; | |
674 | switch (c) { | |
675 | case 'n': | |
676 | c = '\n'; | |
677 | break; | |
678 | case 'r': | |
679 | c = '\r'; | |
680 | break; | |
681 | case '\\': | |
682 | case '\'': | |
683 | case '\"': | |
684 | break; | |
685 | default: | |
686 | printf("unsupported escape code: '\\%c'\n", c); | |
687 | goto fail; | |
688 | } | |
689 | if ((q - buf) < buf_size - 1) { | |
690 | *q++ = c; | |
691 | } | |
692 | } else { | |
693 | if ((q - buf) < buf_size - 1) { | |
694 | *q++ = *p; | |
695 | } | |
696 | p++; | |
697 | } | |
698 | } | |
699 | if (*p != '\"') { | |
700 | printf("unterminated string\n"); | |
701 | goto fail; | |
702 | } | |
703 | p++; | |
704 | } else { | |
705 | while (*p != '\0' && !qemu_isspace(*p)) { | |
706 | if ((q - buf) < buf_size - 1) { | |
707 | *q++ = *p; | |
708 | } | |
709 | p++; | |
710 | } | |
711 | } | |
712 | *q = '\0'; | |
713 | *pp = p; | |
714 | return 0; | |
715 | } | |
716 | ||
717 | #define MAX_ARGS 16 | |
718 | ||
719 | static void free_cmdline_args(char **args, int nb_args) | |
720 | { | |
721 | int i; | |
722 | ||
723 | assert(nb_args <= MAX_ARGS); | |
724 | ||
725 | for (i = 0; i < nb_args; i++) { | |
726 | g_free(args[i]); | |
727 | } | |
728 | ||
729 | } | |
730 | ||
731 | /* | |
732 | * Parse the command line to get valid args. | |
733 | * @cmdline: command line to be parsed. | |
734 | * @pnb_args: location to store the number of args, must NOT be NULL. | |
735 | * @args: location to store the args, which should be freed by caller, must | |
736 | * NOT be NULL. | |
737 | * | |
738 | * Returns 0 on success, negative on failure. | |
739 | * | |
740 | * NOTE: this parser is an approximate form of the real command parser. Number | |
741 | * of args have a limit of MAX_ARGS. If cmdline contains more, it will | |
742 | * return with failure. | |
743 | */ | |
744 | static int parse_cmdline(const char *cmdline, | |
745 | int *pnb_args, char **args) | |
746 | { | |
747 | const char *p; | |
748 | int nb_args, ret; | |
749 | char buf[1024]; | |
750 | ||
751 | p = cmdline; | |
752 | nb_args = 0; | |
753 | for (;;) { | |
754 | while (qemu_isspace(*p)) { | |
755 | p++; | |
756 | } | |
757 | if (*p == '\0') { | |
758 | break; | |
759 | } | |
760 | if (nb_args >= MAX_ARGS) { | |
761 | goto fail; | |
762 | } | |
763 | ret = get_str(buf, sizeof(buf), &p); | |
764 | if (ret < 0) { | |
765 | goto fail; | |
766 | } | |
767 | args[nb_args] = g_strdup(buf); | |
768 | nb_args++; | |
769 | } | |
770 | *pnb_args = nb_args; | |
771 | return 0; | |
772 | ||
773 | fail: | |
774 | free_cmdline_args(args, nb_args); | |
775 | return -1; | |
776 | } | |
777 | ||
778 | static void help_cmd_dump_one(Monitor *mon, | |
779 | const mon_cmd_t *cmd, | |
780 | char **prefix_args, | |
781 | int prefix_args_nb) | |
782 | { | |
783 | int i; | |
784 | ||
785 | for (i = 0; i < prefix_args_nb; i++) { | |
786 | monitor_printf(mon, "%s ", prefix_args[i]); | |
787 | } | |
788 | monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help); | |
789 | } | |
790 | ||
791 | /* @args[@arg_index] is the valid command need to find in @cmds */ | |
792 | static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds, | |
793 | char **args, int nb_args, int arg_index) | |
794 | { | |
795 | const mon_cmd_t *cmd; | |
796 | ||
797 | /* No valid arg need to compare with, dump all in *cmds */ | |
798 | if (arg_index >= nb_args) { | |
799 | for (cmd = cmds; cmd->name != NULL; cmd++) { | |
800 | help_cmd_dump_one(mon, cmd, args, arg_index); | |
801 | } | |
802 | return; | |
803 | } | |
804 | ||
805 | /* Find one entry to dump */ | |
806 | for (cmd = cmds; cmd->name != NULL; cmd++) { | |
807 | if (compare_cmd(args[arg_index], cmd->name)) { | |
808 | if (cmd->sub_table) { | |
809 | /* continue with next arg */ | |
810 | help_cmd_dump(mon, cmd->sub_table, | |
811 | args, nb_args, arg_index + 1); | |
812 | } else { | |
813 | help_cmd_dump_one(mon, cmd, args, arg_index); | |
814 | } | |
815 | break; | |
816 | } | |
817 | } | |
818 | } | |
819 | ||
820 | static void help_cmd(Monitor *mon, const char *name) | |
821 | { | |
822 | char *args[MAX_ARGS]; | |
823 | int nb_args = 0; | |
824 | ||
825 | /* 1. parse user input */ | |
826 | if (name) { | |
827 | /* special case for log, directly dump and return */ | |
828 | if (!strcmp(name, "log")) { | |
829 | const QEMULogItem *item; | |
830 | monitor_printf(mon, "Log items (comma separated):\n"); | |
831 | monitor_printf(mon, "%-10s %s\n", "none", "remove all logs"); | |
832 | for (item = qemu_log_items; item->mask != 0; item++) { | |
833 | monitor_printf(mon, "%-10s %s\n", item->name, item->help); | |
834 | } | |
835 | return; | |
836 | } | |
837 | ||
838 | if (parse_cmdline(name, &nb_args, args) < 0) { | |
839 | return; | |
840 | } | |
841 | } | |
842 | ||
843 | /* 2. dump the contents according to parsed args */ | |
844 | help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0); | |
845 | ||
846 | free_cmdline_args(args, nb_args); | |
847 | } | |
848 | ||
849 | static void do_help_cmd(Monitor *mon, const QDict *qdict) | |
850 | { | |
851 | help_cmd(mon, qdict_get_try_str(qdict, "name")); | |
852 | } | |
853 | ||
854 | static void hmp_trace_event(Monitor *mon, const QDict *qdict) | |
855 | { | |
856 | const char *tp_name = qdict_get_str(qdict, "name"); | |
857 | bool new_state = qdict_get_bool(qdict, "option"); | |
858 | bool has_vcpu = qdict_haskey(qdict, "vcpu"); | |
859 | int vcpu = qdict_get_try_int(qdict, "vcpu", 0); | |
860 | Error *local_err = NULL; | |
861 | ||
862 | if (vcpu < 0) { | |
863 | monitor_printf(mon, "argument vcpu must be positive"); | |
864 | return; | |
865 | } | |
866 | ||
867 | qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err); | |
868 | if (local_err) { | |
869 | error_report_err(local_err); | |
870 | } | |
871 | } | |
872 | ||
873 | #ifdef CONFIG_TRACE_SIMPLE | |
874 | static void hmp_trace_file(Monitor *mon, const QDict *qdict) | |
875 | { | |
876 | const char *op = qdict_get_try_str(qdict, "op"); | |
877 | const char *arg = qdict_get_try_str(qdict, "arg"); | |
878 | ||
879 | if (!op) { | |
880 | st_print_trace_file_status((FILE *)mon, &monitor_fprintf); | |
881 | } else if (!strcmp(op, "on")) { | |
882 | st_set_trace_file_enabled(true); | |
883 | } else if (!strcmp(op, "off")) { | |
884 | st_set_trace_file_enabled(false); | |
885 | } else if (!strcmp(op, "flush")) { | |
886 | st_flush_trace_buffer(); | |
887 | } else if (!strcmp(op, "set")) { | |
888 | if (arg) { | |
889 | st_set_trace_file(arg); | |
890 | } | |
891 | } else { | |
892 | monitor_printf(mon, "unexpected argument \"%s\"\n", op); | |
893 | help_cmd(mon, "trace-file"); | |
894 | } | |
895 | } | |
896 | #endif | |
897 | ||
898 | static void hmp_info_help(Monitor *mon, const QDict *qdict) | |
899 | { | |
900 | help_cmd(mon, "info"); | |
901 | } | |
902 | ||
903 | static void query_commands_cb(QmpCommand *cmd, void *opaque) | |
904 | { | |
905 | CommandInfoList *info, **list = opaque; | |
906 | ||
907 | if (!cmd->enabled) { | |
908 | return; | |
909 | } | |
910 | ||
911 | info = g_malloc0(sizeof(*info)); | |
912 | info->value = g_malloc0(sizeof(*info->value)); | |
913 | info->value->name = g_strdup(cmd->name); | |
914 | info->next = *list; | |
915 | *list = info; | |
916 | } | |
917 | ||
918 | CommandInfoList *qmp_query_commands(Error **errp) | |
919 | { | |
920 | CommandInfoList *list = NULL; | |
921 | ||
922 | qmp_for_each_command(query_commands_cb, &list); | |
923 | ||
924 | return list; | |
925 | } | |
926 | ||
927 | EventInfoList *qmp_query_events(Error **errp) | |
928 | { | |
929 | EventInfoList *info, *ev_list = NULL; | |
930 | QAPIEvent e; | |
931 | ||
932 | for (e = 0 ; e < QAPI_EVENT__MAX ; e++) { | |
933 | const char *event_name = QAPIEvent_lookup[e]; | |
934 | assert(event_name != NULL); | |
935 | info = g_malloc0(sizeof(*info)); | |
936 | info->value = g_malloc0(sizeof(*info->value)); | |
937 | info->value->name = g_strdup(event_name); | |
938 | ||
939 | info->next = ev_list; | |
940 | ev_list = info; | |
941 | } | |
942 | ||
943 | return ev_list; | |
944 | } | |
945 | ||
946 | /* | |
947 | * Minor hack: generated marshalling suppressed for this command | |
948 | * ('gen': false in the schema) so we can parse the JSON string | |
949 | * directly into QObject instead of first parsing it with | |
950 | * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it | |
951 | * to QObject with generated output marshallers, every time. Instead, | |
952 | * we do it in test-qobject-input-visitor.c, just to make sure | |
953 | * qapi-introspect.py's output actually conforms to the schema. | |
954 | */ | |
955 | static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data, | |
956 | Error **errp) | |
957 | { | |
958 | *ret_data = qobject_from_json(qmp_schema_json); | |
959 | } | |
960 | ||
961 | /* | |
962 | * We used to define commands in qmp-commands.hx in addition to the | |
963 | * QAPI schema. This permitted defining some of them only in certain | |
964 | * configurations. query-commands has always reflected that (good, | |
965 | * because it lets QMP clients figure out what's actually available), | |
966 | * while query-qmp-schema never did (not so good). This function is a | |
967 | * hack to keep the configuration-specific commands defined exactly as | |
968 | * before, even though qmp-commands.hx is gone. | |
969 | * | |
970 | * FIXME Educate the QAPI schema on configuration-specific commands, | |
971 | * and drop this hack. | |
972 | */ | |
973 | static void qmp_unregister_commands_hack(void) | |
974 | { | |
975 | #ifndef CONFIG_SPICE | |
976 | qmp_unregister_command("query-spice"); | |
977 | #endif | |
978 | #ifndef TARGET_I386 | |
979 | qmp_unregister_command("rtc-reset-reinjection"); | |
980 | #endif | |
981 | #ifndef TARGET_S390X | |
982 | qmp_unregister_command("dump-skeys"); | |
983 | #endif | |
984 | #ifndef TARGET_ARM | |
985 | qmp_unregister_command("query-gic-capabilities"); | |
986 | #endif | |
987 | #if !defined(TARGET_S390X) | |
988 | qmp_unregister_command("query-cpu-model-expansion"); | |
989 | qmp_unregister_command("query-cpu-model-baseline"); | |
990 | qmp_unregister_command("query-cpu-model-comparison"); | |
991 | #endif | |
992 | #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \ | |
993 | && !defined(TARGET_S390X) | |
994 | qmp_unregister_command("query-cpu-definitions"); | |
995 | #endif | |
996 | } | |
997 | ||
998 | static void qmp_init_marshal(void) | |
999 | { | |
1000 | qmp_register_command("query-qmp-schema", qmp_query_qmp_schema, | |
1001 | QCO_NO_OPTIONS); | |
1002 | qmp_register_command("device_add", qmp_device_add, | |
1003 | QCO_NO_OPTIONS); | |
1004 | qmp_register_command("netdev_add", qmp_netdev_add, | |
1005 | QCO_NO_OPTIONS); | |
1006 | ||
1007 | /* call it after the rest of qapi_init() */ | |
1008 | register_module_init(qmp_unregister_commands_hack, MODULE_INIT_QAPI); | |
1009 | } | |
1010 | ||
1011 | qapi_init(qmp_init_marshal); | |
1012 | ||
1013 | /* set the current CPU defined by the user */ | |
1014 | int monitor_set_cpu(int cpu_index) | |
1015 | { | |
1016 | CPUState *cpu; | |
1017 | ||
1018 | cpu = qemu_get_cpu(cpu_index); | |
1019 | if (cpu == NULL) { | |
1020 | return -1; | |
1021 | } | |
1022 | cur_mon->mon_cpu = cpu; | |
1023 | return 0; | |
1024 | } | |
1025 | ||
1026 | CPUState *mon_get_cpu(void) | |
1027 | { | |
1028 | if (!cur_mon->mon_cpu) { | |
1029 | if (!first_cpu) { | |
1030 | return NULL; | |
1031 | } | |
1032 | monitor_set_cpu(first_cpu->cpu_index); | |
1033 | } | |
1034 | cpu_synchronize_state(cur_mon->mon_cpu); | |
1035 | return cur_mon->mon_cpu; | |
1036 | } | |
1037 | ||
1038 | CPUArchState *mon_get_cpu_env(void) | |
1039 | { | |
1040 | CPUState *cs = mon_get_cpu(); | |
1041 | ||
1042 | return cs ? cs->env_ptr : NULL; | |
1043 | } | |
1044 | ||
1045 | int monitor_get_cpu_index(void) | |
1046 | { | |
1047 | CPUState *cs = mon_get_cpu(); | |
1048 | ||
1049 | return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX; | |
1050 | } | |
1051 | ||
1052 | static void hmp_info_registers(Monitor *mon, const QDict *qdict) | |
1053 | { | |
1054 | CPUState *cs = mon_get_cpu(); | |
1055 | ||
1056 | if (!cs) { | |
1057 | monitor_printf(mon, "No CPU available\n"); | |
1058 | return; | |
1059 | } | |
1060 | cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU); | |
1061 | } | |
1062 | ||
1063 | static void hmp_info_jit(Monitor *mon, const QDict *qdict) | |
1064 | { | |
1065 | dump_exec_info((FILE *)mon, monitor_fprintf); | |
1066 | dump_drift_info((FILE *)mon, monitor_fprintf); | |
1067 | } | |
1068 | ||
1069 | static void hmp_info_opcount(Monitor *mon, const QDict *qdict) | |
1070 | { | |
1071 | dump_opcount_info((FILE *)mon, monitor_fprintf); | |
1072 | } | |
1073 | ||
1074 | static void hmp_info_history(Monitor *mon, const QDict *qdict) | |
1075 | { | |
1076 | int i; | |
1077 | const char *str; | |
1078 | ||
1079 | if (!mon->rs) | |
1080 | return; | |
1081 | i = 0; | |
1082 | for(;;) { | |
1083 | str = readline_get_history(mon->rs, i); | |
1084 | if (!str) | |
1085 | break; | |
1086 | monitor_printf(mon, "%d: '%s'\n", i, str); | |
1087 | i++; | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | static void hmp_info_cpustats(Monitor *mon, const QDict *qdict) | |
1092 | { | |
1093 | CPUState *cs = mon_get_cpu(); | |
1094 | ||
1095 | if (!cs) { | |
1096 | monitor_printf(mon, "No CPU available\n"); | |
1097 | return; | |
1098 | } | |
1099 | cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0); | |
1100 | } | |
1101 | ||
1102 | static void hmp_info_trace_events(Monitor *mon, const QDict *qdict) | |
1103 | { | |
1104 | const char *name = qdict_get_try_str(qdict, "name"); | |
1105 | bool has_vcpu = qdict_haskey(qdict, "vcpu"); | |
1106 | int vcpu = qdict_get_try_int(qdict, "vcpu", 0); | |
1107 | TraceEventInfoList *events; | |
1108 | TraceEventInfoList *elem; | |
1109 | Error *local_err = NULL; | |
1110 | ||
1111 | if (name == NULL) { | |
1112 | name = "*"; | |
1113 | } | |
1114 | if (vcpu < 0) { | |
1115 | monitor_printf(mon, "argument vcpu must be positive"); | |
1116 | return; | |
1117 | } | |
1118 | ||
1119 | events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err); | |
1120 | if (local_err) { | |
1121 | error_report_err(local_err); | |
1122 | return; | |
1123 | } | |
1124 | ||
1125 | for (elem = events; elem != NULL; elem = elem->next) { | |
1126 | monitor_printf(mon, "%s : state %u\n", | |
1127 | elem->value->name, | |
1128 | elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0); | |
1129 | } | |
1130 | qapi_free_TraceEventInfoList(events); | |
1131 | } | |
1132 | ||
1133 | void qmp_client_migrate_info(const char *protocol, const char *hostname, | |
1134 | bool has_port, int64_t port, | |
1135 | bool has_tls_port, int64_t tls_port, | |
1136 | bool has_cert_subject, const char *cert_subject, | |
1137 | Error **errp) | |
1138 | { | |
1139 | if (strcmp(protocol, "spice") == 0) { | |
1140 | if (!qemu_using_spice(errp)) { | |
1141 | return; | |
1142 | } | |
1143 | ||
1144 | if (!has_port && !has_tls_port) { | |
1145 | error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port"); | |
1146 | return; | |
1147 | } | |
1148 | ||
1149 | if (qemu_spice_migrate_info(hostname, | |
1150 | has_port ? port : -1, | |
1151 | has_tls_port ? tls_port : -1, | |
1152 | cert_subject)) { | |
1153 | error_setg(errp, QERR_UNDEFINED_ERROR); | |
1154 | return; | |
1155 | } | |
1156 | return; | |
1157 | } | |
1158 | ||
1159 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice"); | |
1160 | } | |
1161 | ||
1162 | static void hmp_logfile(Monitor *mon, const QDict *qdict) | |
1163 | { | |
1164 | Error *err = NULL; | |
1165 | ||
1166 | qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err); | |
1167 | if (err) { | |
1168 | error_report_err(err); | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | static void hmp_log(Monitor *mon, const QDict *qdict) | |
1173 | { | |
1174 | int mask; | |
1175 | const char *items = qdict_get_str(qdict, "items"); | |
1176 | ||
1177 | if (!strcmp(items, "none")) { | |
1178 | mask = 0; | |
1179 | } else { | |
1180 | mask = qemu_str_to_log_mask(items); | |
1181 | if (!mask) { | |
1182 | help_cmd(mon, "log"); | |
1183 | return; | |
1184 | } | |
1185 | } | |
1186 | qemu_set_log(mask); | |
1187 | } | |
1188 | ||
1189 | static void hmp_singlestep(Monitor *mon, const QDict *qdict) | |
1190 | { | |
1191 | const char *option = qdict_get_try_str(qdict, "option"); | |
1192 | if (!option || !strcmp(option, "on")) { | |
1193 | singlestep = 1; | |
1194 | } else if (!strcmp(option, "off")) { | |
1195 | singlestep = 0; | |
1196 | } else { | |
1197 | monitor_printf(mon, "unexpected option %s\n", option); | |
1198 | } | |
1199 | } | |
1200 | ||
1201 | static void hmp_gdbserver(Monitor *mon, const QDict *qdict) | |
1202 | { | |
1203 | const char *device = qdict_get_try_str(qdict, "device"); | |
1204 | if (!device) | |
1205 | device = "tcp::" DEFAULT_GDBSTUB_PORT; | |
1206 | if (gdbserver_start(device) < 0) { | |
1207 | monitor_printf(mon, "Could not open gdbserver on device '%s'\n", | |
1208 | device); | |
1209 | } else if (strcmp(device, "none") == 0) { | |
1210 | monitor_printf(mon, "Disabled gdbserver\n"); | |
1211 | } else { | |
1212 | monitor_printf(mon, "Waiting for gdb connection on device '%s'\n", | |
1213 | device); | |
1214 | } | |
1215 | } | |
1216 | ||
1217 | static void hmp_watchdog_action(Monitor *mon, const QDict *qdict) | |
1218 | { | |
1219 | const char *action = qdict_get_str(qdict, "action"); | |
1220 | if (select_watchdog_action(action) == -1) { | |
1221 | monitor_printf(mon, "Unknown watchdog action '%s'\n", action); | |
1222 | } | |
1223 | } | |
1224 | ||
1225 | static void monitor_printc(Monitor *mon, int c) | |
1226 | { | |
1227 | monitor_printf(mon, "'"); | |
1228 | switch(c) { | |
1229 | case '\'': | |
1230 | monitor_printf(mon, "\\'"); | |
1231 | break; | |
1232 | case '\\': | |
1233 | monitor_printf(mon, "\\\\"); | |
1234 | break; | |
1235 | case '\n': | |
1236 | monitor_printf(mon, "\\n"); | |
1237 | break; | |
1238 | case '\r': | |
1239 | monitor_printf(mon, "\\r"); | |
1240 | break; | |
1241 | default: | |
1242 | if (c >= 32 && c <= 126) { | |
1243 | monitor_printf(mon, "%c", c); | |
1244 | } else { | |
1245 | monitor_printf(mon, "\\x%02x", c); | |
1246 | } | |
1247 | break; | |
1248 | } | |
1249 | monitor_printf(mon, "'"); | |
1250 | } | |
1251 | ||
1252 | static void memory_dump(Monitor *mon, int count, int format, int wsize, | |
1253 | hwaddr addr, int is_physical) | |
1254 | { | |
1255 | int l, line_size, i, max_digits, len; | |
1256 | uint8_t buf[16]; | |
1257 | uint64_t v; | |
1258 | CPUState *cs = mon_get_cpu(); | |
1259 | ||
1260 | if (!cs && (format == 'i' || !is_physical)) { | |
1261 | monitor_printf(mon, "Can not dump without CPU\n"); | |
1262 | return; | |
1263 | } | |
1264 | ||
1265 | if (format == 'i') { | |
1266 | int flags = 0; | |
1267 | #ifdef TARGET_I386 | |
1268 | CPUArchState *env = mon_get_cpu_env(); | |
1269 | if (wsize == 2) { | |
1270 | flags = 1; | |
1271 | } else if (wsize == 4) { | |
1272 | flags = 0; | |
1273 | } else { | |
1274 | /* as default we use the current CS size */ | |
1275 | flags = 0; | |
1276 | if (env) { | |
1277 | #ifdef TARGET_X86_64 | |
1278 | if ((env->efer & MSR_EFER_LMA) && | |
1279 | (env->segs[R_CS].flags & DESC_L_MASK)) | |
1280 | flags = 2; | |
1281 | else | |
1282 | #endif | |
1283 | if (!(env->segs[R_CS].flags & DESC_B_MASK)) | |
1284 | flags = 1; | |
1285 | } | |
1286 | } | |
1287 | #endif | |
1288 | #ifdef TARGET_PPC | |
1289 | CPUArchState *env = mon_get_cpu_env(); | |
1290 | flags = msr_le << 16; | |
1291 | flags |= env->bfd_mach; | |
1292 | #endif | |
1293 | monitor_disas(mon, cs, addr, count, is_physical, flags); | |
1294 | return; | |
1295 | } | |
1296 | ||
1297 | len = wsize * count; | |
1298 | if (wsize == 1) | |
1299 | line_size = 8; | |
1300 | else | |
1301 | line_size = 16; | |
1302 | max_digits = 0; | |
1303 | ||
1304 | switch(format) { | |
1305 | case 'o': | |
1306 | max_digits = (wsize * 8 + 2) / 3; | |
1307 | break; | |
1308 | default: | |
1309 | case 'x': | |
1310 | max_digits = (wsize * 8) / 4; | |
1311 | break; | |
1312 | case 'u': | |
1313 | case 'd': | |
1314 | max_digits = (wsize * 8 * 10 + 32) / 33; | |
1315 | break; | |
1316 | case 'c': | |
1317 | wsize = 1; | |
1318 | break; | |
1319 | } | |
1320 | ||
1321 | while (len > 0) { | |
1322 | if (is_physical) | |
1323 | monitor_printf(mon, TARGET_FMT_plx ":", addr); | |
1324 | else | |
1325 | monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr); | |
1326 | l = len; | |
1327 | if (l > line_size) | |
1328 | l = line_size; | |
1329 | if (is_physical) { | |
1330 | cpu_physical_memory_read(addr, buf, l); | |
1331 | } else { | |
1332 | if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) { | |
1333 | monitor_printf(mon, " Cannot access memory\n"); | |
1334 | break; | |
1335 | } | |
1336 | } | |
1337 | i = 0; | |
1338 | while (i < l) { | |
1339 | switch(wsize) { | |
1340 | default: | |
1341 | case 1: | |
1342 | v = ldub_p(buf + i); | |
1343 | break; | |
1344 | case 2: | |
1345 | v = lduw_p(buf + i); | |
1346 | break; | |
1347 | case 4: | |
1348 | v = (uint32_t)ldl_p(buf + i); | |
1349 | break; | |
1350 | case 8: | |
1351 | v = ldq_p(buf + i); | |
1352 | break; | |
1353 | } | |
1354 | monitor_printf(mon, " "); | |
1355 | switch(format) { | |
1356 | case 'o': | |
1357 | monitor_printf(mon, "%#*" PRIo64, max_digits, v); | |
1358 | break; | |
1359 | case 'x': | |
1360 | monitor_printf(mon, "0x%0*" PRIx64, max_digits, v); | |
1361 | break; | |
1362 | case 'u': | |
1363 | monitor_printf(mon, "%*" PRIu64, max_digits, v); | |
1364 | break; | |
1365 | case 'd': | |
1366 | monitor_printf(mon, "%*" PRId64, max_digits, v); | |
1367 | break; | |
1368 | case 'c': | |
1369 | monitor_printc(mon, v); | |
1370 | break; | |
1371 | } | |
1372 | i += wsize; | |
1373 | } | |
1374 | monitor_printf(mon, "\n"); | |
1375 | addr += l; | |
1376 | len -= l; | |
1377 | } | |
1378 | } | |
1379 | ||
1380 | static void hmp_memory_dump(Monitor *mon, const QDict *qdict) | |
1381 | { | |
1382 | int count = qdict_get_int(qdict, "count"); | |
1383 | int format = qdict_get_int(qdict, "format"); | |
1384 | int size = qdict_get_int(qdict, "size"); | |
1385 | target_long addr = qdict_get_int(qdict, "addr"); | |
1386 | ||
1387 | memory_dump(mon, count, format, size, addr, 0); | |
1388 | } | |
1389 | ||
1390 | static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict) | |
1391 | { | |
1392 | int count = qdict_get_int(qdict, "count"); | |
1393 | int format = qdict_get_int(qdict, "format"); | |
1394 | int size = qdict_get_int(qdict, "size"); | |
1395 | hwaddr addr = qdict_get_int(qdict, "addr"); | |
1396 | ||
1397 | memory_dump(mon, count, format, size, addr, 1); | |
1398 | } | |
1399 | ||
1400 | static void do_print(Monitor *mon, const QDict *qdict) | |
1401 | { | |
1402 | int format = qdict_get_int(qdict, "format"); | |
1403 | hwaddr val = qdict_get_int(qdict, "val"); | |
1404 | ||
1405 | switch(format) { | |
1406 | case 'o': | |
1407 | monitor_printf(mon, "%#" HWADDR_PRIo, val); | |
1408 | break; | |
1409 | case 'x': | |
1410 | monitor_printf(mon, "%#" HWADDR_PRIx, val); | |
1411 | break; | |
1412 | case 'u': | |
1413 | monitor_printf(mon, "%" HWADDR_PRIu, val); | |
1414 | break; | |
1415 | default: | |
1416 | case 'd': | |
1417 | monitor_printf(mon, "%" HWADDR_PRId, val); | |
1418 | break; | |
1419 | case 'c': | |
1420 | monitor_printc(mon, val); | |
1421 | break; | |
1422 | } | |
1423 | monitor_printf(mon, "\n"); | |
1424 | } | |
1425 | ||
1426 | static void hmp_sum(Monitor *mon, const QDict *qdict) | |
1427 | { | |
1428 | uint32_t addr; | |
1429 | uint16_t sum; | |
1430 | uint32_t start = qdict_get_int(qdict, "start"); | |
1431 | uint32_t size = qdict_get_int(qdict, "size"); | |
1432 | ||
1433 | sum = 0; | |
1434 | for(addr = start; addr < (start + size); addr++) { | |
1435 | uint8_t val = address_space_ldub(&address_space_memory, addr, | |
1436 | MEMTXATTRS_UNSPECIFIED, NULL); | |
1437 | /* BSD sum algorithm ('sum' Unix command) */ | |
1438 | sum = (sum >> 1) | (sum << 15); | |
1439 | sum += val; | |
1440 | } | |
1441 | monitor_printf(mon, "%05d\n", sum); | |
1442 | } | |
1443 | ||
1444 | static int mouse_button_state; | |
1445 | ||
1446 | static void hmp_mouse_move(Monitor *mon, const QDict *qdict) | |
1447 | { | |
1448 | int dx, dy, dz, button; | |
1449 | const char *dx_str = qdict_get_str(qdict, "dx_str"); | |
1450 | const char *dy_str = qdict_get_str(qdict, "dy_str"); | |
1451 | const char *dz_str = qdict_get_try_str(qdict, "dz_str"); | |
1452 | ||
1453 | dx = strtol(dx_str, NULL, 0); | |
1454 | dy = strtol(dy_str, NULL, 0); | |
1455 | qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx); | |
1456 | qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy); | |
1457 | ||
1458 | if (dz_str) { | |
1459 | dz = strtol(dz_str, NULL, 0); | |
1460 | if (dz != 0) { | |
1461 | button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN; | |
1462 | qemu_input_queue_btn(NULL, button, true); | |
1463 | qemu_input_event_sync(); | |
1464 | qemu_input_queue_btn(NULL, button, false); | |
1465 | } | |
1466 | } | |
1467 | qemu_input_event_sync(); | |
1468 | } | |
1469 | ||
1470 | static void hmp_mouse_button(Monitor *mon, const QDict *qdict) | |
1471 | { | |
1472 | static uint32_t bmap[INPUT_BUTTON__MAX] = { | |
1473 | [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON, | |
1474 | [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON, | |
1475 | [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON, | |
1476 | }; | |
1477 | int button_state = qdict_get_int(qdict, "button_state"); | |
1478 | ||
1479 | if (mouse_button_state == button_state) { | |
1480 | return; | |
1481 | } | |
1482 | qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state); | |
1483 | qemu_input_event_sync(); | |
1484 | mouse_button_state = button_state; | |
1485 | } | |
1486 | ||
1487 | static void hmp_ioport_read(Monitor *mon, const QDict *qdict) | |
1488 | { | |
1489 | int size = qdict_get_int(qdict, "size"); | |
1490 | int addr = qdict_get_int(qdict, "addr"); | |
1491 | int has_index = qdict_haskey(qdict, "index"); | |
1492 | uint32_t val; | |
1493 | int suffix; | |
1494 | ||
1495 | if (has_index) { | |
1496 | int index = qdict_get_int(qdict, "index"); | |
1497 | cpu_outb(addr & IOPORTS_MASK, index & 0xff); | |
1498 | addr++; | |
1499 | } | |
1500 | addr &= 0xffff; | |
1501 | ||
1502 | switch(size) { | |
1503 | default: | |
1504 | case 1: | |
1505 | val = cpu_inb(addr); | |
1506 | suffix = 'b'; | |
1507 | break; | |
1508 | case 2: | |
1509 | val = cpu_inw(addr); | |
1510 | suffix = 'w'; | |
1511 | break; | |
1512 | case 4: | |
1513 | val = cpu_inl(addr); | |
1514 | suffix = 'l'; | |
1515 | break; | |
1516 | } | |
1517 | monitor_printf(mon, "port%c[0x%04x] = %#0*x\n", | |
1518 | suffix, addr, size * 2, val); | |
1519 | } | |
1520 | ||
1521 | static void hmp_ioport_write(Monitor *mon, const QDict *qdict) | |
1522 | { | |
1523 | int size = qdict_get_int(qdict, "size"); | |
1524 | int addr = qdict_get_int(qdict, "addr"); | |
1525 | int val = qdict_get_int(qdict, "val"); | |
1526 | ||
1527 | addr &= IOPORTS_MASK; | |
1528 | ||
1529 | switch (size) { | |
1530 | default: | |
1531 | case 1: | |
1532 | cpu_outb(addr, val); | |
1533 | break; | |
1534 | case 2: | |
1535 | cpu_outw(addr, val); | |
1536 | break; | |
1537 | case 4: | |
1538 | cpu_outl(addr, val); | |
1539 | break; | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | static void hmp_boot_set(Monitor *mon, const QDict *qdict) | |
1544 | { | |
1545 | Error *local_err = NULL; | |
1546 | const char *bootdevice = qdict_get_str(qdict, "bootdevice"); | |
1547 | ||
1548 | qemu_boot_set(bootdevice, &local_err); | |
1549 | if (local_err) { | |
1550 | error_report_err(local_err); | |
1551 | } else { | |
1552 | monitor_printf(mon, "boot device list now set to %s\n", bootdevice); | |
1553 | } | |
1554 | } | |
1555 | ||
1556 | static void hmp_info_mtree(Monitor *mon, const QDict *qdict) | |
1557 | { | |
1558 | bool flatview = qdict_get_try_bool(qdict, "flatview", false); | |
1559 | ||
1560 | mtree_info((fprintf_function)monitor_printf, mon, flatview); | |
1561 | } | |
1562 | ||
1563 | static void hmp_info_numa(Monitor *mon, const QDict *qdict) | |
1564 | { | |
1565 | int i; | |
1566 | CPUState *cpu; | |
1567 | uint64_t *node_mem; | |
1568 | ||
1569 | node_mem = g_new0(uint64_t, nb_numa_nodes); | |
1570 | query_numa_node_mem(node_mem); | |
1571 | monitor_printf(mon, "%d nodes\n", nb_numa_nodes); | |
1572 | for (i = 0; i < nb_numa_nodes; i++) { | |
1573 | monitor_printf(mon, "node %d cpus:", i); | |
1574 | CPU_FOREACH(cpu) { | |
1575 | if (cpu->numa_node == i) { | |
1576 | monitor_printf(mon, " %d", cpu->cpu_index); | |
1577 | } | |
1578 | } | |
1579 | monitor_printf(mon, "\n"); | |
1580 | monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i, | |
1581 | node_mem[i] >> 20); | |
1582 | } | |
1583 | g_free(node_mem); | |
1584 | } | |
1585 | ||
1586 | #ifdef CONFIG_PROFILER | |
1587 | ||
1588 | int64_t tcg_time; | |
1589 | int64_t dev_time; | |
1590 | ||
1591 | static void hmp_info_profile(Monitor *mon, const QDict *qdict) | |
1592 | { | |
1593 | monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n", | |
1594 | dev_time, dev_time / (double)NANOSECONDS_PER_SECOND); | |
1595 | monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n", | |
1596 | tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND); | |
1597 | tcg_time = 0; | |
1598 | dev_time = 0; | |
1599 | } | |
1600 | #else | |
1601 | static void hmp_info_profile(Monitor *mon, const QDict *qdict) | |
1602 | { | |
1603 | monitor_printf(mon, "Internal profiler not compiled\n"); | |
1604 | } | |
1605 | #endif | |
1606 | ||
1607 | /* Capture support */ | |
1608 | static QLIST_HEAD (capture_list_head, CaptureState) capture_head; | |
1609 | ||
1610 | static void hmp_info_capture(Monitor *mon, const QDict *qdict) | |
1611 | { | |
1612 | int i; | |
1613 | CaptureState *s; | |
1614 | ||
1615 | for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) { | |
1616 | monitor_printf(mon, "[%d]: ", i); | |
1617 | s->ops.info (s->opaque); | |
1618 | } | |
1619 | } | |
1620 | ||
1621 | static void hmp_stopcapture(Monitor *mon, const QDict *qdict) | |
1622 | { | |
1623 | int i; | |
1624 | int n = qdict_get_int(qdict, "n"); | |
1625 | CaptureState *s; | |
1626 | ||
1627 | for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) { | |
1628 | if (i == n) { | |
1629 | s->ops.destroy (s->opaque); | |
1630 | QLIST_REMOVE (s, entries); | |
1631 | g_free (s); | |
1632 | return; | |
1633 | } | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | static void hmp_wavcapture(Monitor *mon, const QDict *qdict) | |
1638 | { | |
1639 | const char *path = qdict_get_str(qdict, "path"); | |
1640 | int has_freq = qdict_haskey(qdict, "freq"); | |
1641 | int freq = qdict_get_try_int(qdict, "freq", -1); | |
1642 | int has_bits = qdict_haskey(qdict, "bits"); | |
1643 | int bits = qdict_get_try_int(qdict, "bits", -1); | |
1644 | int has_channels = qdict_haskey(qdict, "nchannels"); | |
1645 | int nchannels = qdict_get_try_int(qdict, "nchannels", -1); | |
1646 | CaptureState *s; | |
1647 | ||
1648 | s = g_malloc0 (sizeof (*s)); | |
1649 | ||
1650 | freq = has_freq ? freq : 44100; | |
1651 | bits = has_bits ? bits : 16; | |
1652 | nchannels = has_channels ? nchannels : 2; | |
1653 | ||
1654 | if (wav_start_capture (s, path, freq, bits, nchannels)) { | |
1655 | monitor_printf(mon, "Failed to add wave capture\n"); | |
1656 | g_free (s); | |
1657 | return; | |
1658 | } | |
1659 | QLIST_INSERT_HEAD (&capture_head, s, entries); | |
1660 | } | |
1661 | ||
1662 | static qemu_acl *find_acl(Monitor *mon, const char *name) | |
1663 | { | |
1664 | qemu_acl *acl = qemu_acl_find(name); | |
1665 | ||
1666 | if (!acl) { | |
1667 | monitor_printf(mon, "acl: unknown list '%s'\n", name); | |
1668 | } | |
1669 | return acl; | |
1670 | } | |
1671 | ||
1672 | static void hmp_acl_show(Monitor *mon, const QDict *qdict) | |
1673 | { | |
1674 | const char *aclname = qdict_get_str(qdict, "aclname"); | |
1675 | qemu_acl *acl = find_acl(mon, aclname); | |
1676 | qemu_acl_entry *entry; | |
1677 | int i = 0; | |
1678 | ||
1679 | if (acl) { | |
1680 | monitor_printf(mon, "policy: %s\n", | |
1681 | acl->defaultDeny ? "deny" : "allow"); | |
1682 | QTAILQ_FOREACH(entry, &acl->entries, next) { | |
1683 | i++; | |
1684 | monitor_printf(mon, "%d: %s %s\n", i, | |
1685 | entry->deny ? "deny" : "allow", entry->match); | |
1686 | } | |
1687 | } | |
1688 | } | |
1689 | ||
1690 | static void hmp_acl_reset(Monitor *mon, const QDict *qdict) | |
1691 | { | |
1692 | const char *aclname = qdict_get_str(qdict, "aclname"); | |
1693 | qemu_acl *acl = find_acl(mon, aclname); | |
1694 | ||
1695 | if (acl) { | |
1696 | qemu_acl_reset(acl); | |
1697 | monitor_printf(mon, "acl: removed all rules\n"); | |
1698 | } | |
1699 | } | |
1700 | ||
1701 | static void hmp_acl_policy(Monitor *mon, const QDict *qdict) | |
1702 | { | |
1703 | const char *aclname = qdict_get_str(qdict, "aclname"); | |
1704 | const char *policy = qdict_get_str(qdict, "policy"); | |
1705 | qemu_acl *acl = find_acl(mon, aclname); | |
1706 | ||
1707 | if (acl) { | |
1708 | if (strcmp(policy, "allow") == 0) { | |
1709 | acl->defaultDeny = 0; | |
1710 | monitor_printf(mon, "acl: policy set to 'allow'\n"); | |
1711 | } else if (strcmp(policy, "deny") == 0) { | |
1712 | acl->defaultDeny = 1; | |
1713 | monitor_printf(mon, "acl: policy set to 'deny'\n"); | |
1714 | } else { | |
1715 | monitor_printf(mon, "acl: unknown policy '%s', " | |
1716 | "expected 'deny' or 'allow'\n", policy); | |
1717 | } | |
1718 | } | |
1719 | } | |
1720 | ||
1721 | static void hmp_acl_add(Monitor *mon, const QDict *qdict) | |
1722 | { | |
1723 | const char *aclname = qdict_get_str(qdict, "aclname"); | |
1724 | const char *match = qdict_get_str(qdict, "match"); | |
1725 | const char *policy = qdict_get_str(qdict, "policy"); | |
1726 | int has_index = qdict_haskey(qdict, "index"); | |
1727 | int index = qdict_get_try_int(qdict, "index", -1); | |
1728 | qemu_acl *acl = find_acl(mon, aclname); | |
1729 | int deny, ret; | |
1730 | ||
1731 | if (acl) { | |
1732 | if (strcmp(policy, "allow") == 0) { | |
1733 | deny = 0; | |
1734 | } else if (strcmp(policy, "deny") == 0) { | |
1735 | deny = 1; | |
1736 | } else { | |
1737 | monitor_printf(mon, "acl: unknown policy '%s', " | |
1738 | "expected 'deny' or 'allow'\n", policy); | |
1739 | return; | |
1740 | } | |
1741 | if (has_index) | |
1742 | ret = qemu_acl_insert(acl, deny, match, index); | |
1743 | else | |
1744 | ret = qemu_acl_append(acl, deny, match); | |
1745 | if (ret < 0) | |
1746 | monitor_printf(mon, "acl: unable to add acl entry\n"); | |
1747 | else | |
1748 | monitor_printf(mon, "acl: added rule at position %d\n", ret); | |
1749 | } | |
1750 | } | |
1751 | ||
1752 | static void hmp_acl_remove(Monitor *mon, const QDict *qdict) | |
1753 | { | |
1754 | const char *aclname = qdict_get_str(qdict, "aclname"); | |
1755 | const char *match = qdict_get_str(qdict, "match"); | |
1756 | qemu_acl *acl = find_acl(mon, aclname); | |
1757 | int ret; | |
1758 | ||
1759 | if (acl) { | |
1760 | ret = qemu_acl_remove(acl, match); | |
1761 | if (ret < 0) | |
1762 | monitor_printf(mon, "acl: no matching acl entry\n"); | |
1763 | else | |
1764 | monitor_printf(mon, "acl: removed rule at position %d\n", ret); | |
1765 | } | |
1766 | } | |
1767 | ||
1768 | void qmp_getfd(const char *fdname, Error **errp) | |
1769 | { | |
1770 | mon_fd_t *monfd; | |
1771 | int fd; | |
1772 | ||
1773 | fd = qemu_chr_fe_get_msgfd(&cur_mon->chr); | |
1774 | if (fd == -1) { | |
1775 | error_setg(errp, QERR_FD_NOT_SUPPLIED); | |
1776 | return; | |
1777 | } | |
1778 | ||
1779 | if (qemu_isdigit(fdname[0])) { | |
1780 | close(fd); | |
1781 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname", | |
1782 | "a name not starting with a digit"); | |
1783 | return; | |
1784 | } | |
1785 | ||
1786 | QLIST_FOREACH(monfd, &cur_mon->fds, next) { | |
1787 | if (strcmp(monfd->name, fdname) != 0) { | |
1788 | continue; | |
1789 | } | |
1790 | ||
1791 | close(monfd->fd); | |
1792 | monfd->fd = fd; | |
1793 | return; | |
1794 | } | |
1795 | ||
1796 | monfd = g_malloc0(sizeof(mon_fd_t)); | |
1797 | monfd->name = g_strdup(fdname); | |
1798 | monfd->fd = fd; | |
1799 | ||
1800 | QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next); | |
1801 | } | |
1802 | ||
1803 | void qmp_closefd(const char *fdname, Error **errp) | |
1804 | { | |
1805 | mon_fd_t *monfd; | |
1806 | ||
1807 | QLIST_FOREACH(monfd, &cur_mon->fds, next) { | |
1808 | if (strcmp(monfd->name, fdname) != 0) { | |
1809 | continue; | |
1810 | } | |
1811 | ||
1812 | QLIST_REMOVE(monfd, next); | |
1813 | close(monfd->fd); | |
1814 | g_free(monfd->name); | |
1815 | g_free(monfd); | |
1816 | return; | |
1817 | } | |
1818 | ||
1819 | error_setg(errp, QERR_FD_NOT_FOUND, fdname); | |
1820 | } | |
1821 | ||
1822 | static void hmp_loadvm(Monitor *mon, const QDict *qdict) | |
1823 | { | |
1824 | int saved_vm_running = runstate_is_running(); | |
1825 | const char *name = qdict_get_str(qdict, "name"); | |
1826 | ||
1827 | vm_stop(RUN_STATE_RESTORE_VM); | |
1828 | ||
1829 | if (load_vmstate(name) == 0 && saved_vm_running) { | |
1830 | vm_start(); | |
1831 | } | |
1832 | } | |
1833 | ||
1834 | int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp) | |
1835 | { | |
1836 | mon_fd_t *monfd; | |
1837 | ||
1838 | QLIST_FOREACH(monfd, &mon->fds, next) { | |
1839 | int fd; | |
1840 | ||
1841 | if (strcmp(monfd->name, fdname) != 0) { | |
1842 | continue; | |
1843 | } | |
1844 | ||
1845 | fd = monfd->fd; | |
1846 | ||
1847 | /* caller takes ownership of fd */ | |
1848 | QLIST_REMOVE(monfd, next); | |
1849 | g_free(monfd->name); | |
1850 | g_free(monfd); | |
1851 | ||
1852 | return fd; | |
1853 | } | |
1854 | ||
1855 | error_setg(errp, "File descriptor named '%s' has not been found", fdname); | |
1856 | return -1; | |
1857 | } | |
1858 | ||
1859 | static void monitor_fdset_cleanup(MonFdset *mon_fdset) | |
1860 | { | |
1861 | MonFdsetFd *mon_fdset_fd; | |
1862 | MonFdsetFd *mon_fdset_fd_next; | |
1863 | ||
1864 | QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) { | |
1865 | if ((mon_fdset_fd->removed || | |
1866 | (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) && | |
1867 | runstate_is_running()) { | |
1868 | close(mon_fdset_fd->fd); | |
1869 | g_free(mon_fdset_fd->opaque); | |
1870 | QLIST_REMOVE(mon_fdset_fd, next); | |
1871 | g_free(mon_fdset_fd); | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) { | |
1876 | QLIST_REMOVE(mon_fdset, next); | |
1877 | g_free(mon_fdset); | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | static void monitor_fdsets_cleanup(void) | |
1882 | { | |
1883 | MonFdset *mon_fdset; | |
1884 | MonFdset *mon_fdset_next; | |
1885 | ||
1886 | QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) { | |
1887 | monitor_fdset_cleanup(mon_fdset); | |
1888 | } | |
1889 | } | |
1890 | ||
1891 | AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque, | |
1892 | const char *opaque, Error **errp) | |
1893 | { | |
1894 | int fd; | |
1895 | Monitor *mon = cur_mon; | |
1896 | AddfdInfo *fdinfo; | |
1897 | ||
1898 | fd = qemu_chr_fe_get_msgfd(&mon->chr); | |
1899 | if (fd == -1) { | |
1900 | error_setg(errp, QERR_FD_NOT_SUPPLIED); | |
1901 | goto error; | |
1902 | } | |
1903 | ||
1904 | fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id, | |
1905 | has_opaque, opaque, errp); | |
1906 | if (fdinfo) { | |
1907 | return fdinfo; | |
1908 | } | |
1909 | ||
1910 | error: | |
1911 | if (fd != -1) { | |
1912 | close(fd); | |
1913 | } | |
1914 | return NULL; | |
1915 | } | |
1916 | ||
1917 | void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp) | |
1918 | { | |
1919 | MonFdset *mon_fdset; | |
1920 | MonFdsetFd *mon_fdset_fd; | |
1921 | char fd_str[60]; | |
1922 | ||
1923 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
1924 | if (mon_fdset->id != fdset_id) { | |
1925 | continue; | |
1926 | } | |
1927 | QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { | |
1928 | if (has_fd) { | |
1929 | if (mon_fdset_fd->fd != fd) { | |
1930 | continue; | |
1931 | } | |
1932 | mon_fdset_fd->removed = true; | |
1933 | break; | |
1934 | } else { | |
1935 | mon_fdset_fd->removed = true; | |
1936 | } | |
1937 | } | |
1938 | if (has_fd && !mon_fdset_fd) { | |
1939 | goto error; | |
1940 | } | |
1941 | monitor_fdset_cleanup(mon_fdset); | |
1942 | return; | |
1943 | } | |
1944 | ||
1945 | error: | |
1946 | if (has_fd) { | |
1947 | snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64, | |
1948 | fdset_id, fd); | |
1949 | } else { | |
1950 | snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id); | |
1951 | } | |
1952 | error_setg(errp, QERR_FD_NOT_FOUND, fd_str); | |
1953 | } | |
1954 | ||
1955 | FdsetInfoList *qmp_query_fdsets(Error **errp) | |
1956 | { | |
1957 | MonFdset *mon_fdset; | |
1958 | MonFdsetFd *mon_fdset_fd; | |
1959 | FdsetInfoList *fdset_list = NULL; | |
1960 | ||
1961 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
1962 | FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info)); | |
1963 | FdsetFdInfoList *fdsetfd_list = NULL; | |
1964 | ||
1965 | fdset_info->value = g_malloc0(sizeof(*fdset_info->value)); | |
1966 | fdset_info->value->fdset_id = mon_fdset->id; | |
1967 | ||
1968 | QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { | |
1969 | FdsetFdInfoList *fdsetfd_info; | |
1970 | ||
1971 | fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info)); | |
1972 | fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value)); | |
1973 | fdsetfd_info->value->fd = mon_fdset_fd->fd; | |
1974 | if (mon_fdset_fd->opaque) { | |
1975 | fdsetfd_info->value->has_opaque = true; | |
1976 | fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque); | |
1977 | } else { | |
1978 | fdsetfd_info->value->has_opaque = false; | |
1979 | } | |
1980 | ||
1981 | fdsetfd_info->next = fdsetfd_list; | |
1982 | fdsetfd_list = fdsetfd_info; | |
1983 | } | |
1984 | ||
1985 | fdset_info->value->fds = fdsetfd_list; | |
1986 | ||
1987 | fdset_info->next = fdset_list; | |
1988 | fdset_list = fdset_info; | |
1989 | } | |
1990 | ||
1991 | return fdset_list; | |
1992 | } | |
1993 | ||
1994 | AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id, | |
1995 | bool has_opaque, const char *opaque, | |
1996 | Error **errp) | |
1997 | { | |
1998 | MonFdset *mon_fdset = NULL; | |
1999 | MonFdsetFd *mon_fdset_fd; | |
2000 | AddfdInfo *fdinfo; | |
2001 | ||
2002 | if (has_fdset_id) { | |
2003 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2004 | /* Break if match found or match impossible due to ordering by ID */ | |
2005 | if (fdset_id <= mon_fdset->id) { | |
2006 | if (fdset_id < mon_fdset->id) { | |
2007 | mon_fdset = NULL; | |
2008 | } | |
2009 | break; | |
2010 | } | |
2011 | } | |
2012 | } | |
2013 | ||
2014 | if (mon_fdset == NULL) { | |
2015 | int64_t fdset_id_prev = -1; | |
2016 | MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets); | |
2017 | ||
2018 | if (has_fdset_id) { | |
2019 | if (fdset_id < 0) { | |
2020 | error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id", | |
2021 | "a non-negative value"); | |
2022 | return NULL; | |
2023 | } | |
2024 | /* Use specified fdset ID */ | |
2025 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2026 | mon_fdset_cur = mon_fdset; | |
2027 | if (fdset_id < mon_fdset_cur->id) { | |
2028 | break; | |
2029 | } | |
2030 | } | |
2031 | } else { | |
2032 | /* Use first available fdset ID */ | |
2033 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2034 | mon_fdset_cur = mon_fdset; | |
2035 | if (fdset_id_prev == mon_fdset_cur->id - 1) { | |
2036 | fdset_id_prev = mon_fdset_cur->id; | |
2037 | continue; | |
2038 | } | |
2039 | break; | |
2040 | } | |
2041 | } | |
2042 | ||
2043 | mon_fdset = g_malloc0(sizeof(*mon_fdset)); | |
2044 | if (has_fdset_id) { | |
2045 | mon_fdset->id = fdset_id; | |
2046 | } else { | |
2047 | mon_fdset->id = fdset_id_prev + 1; | |
2048 | } | |
2049 | ||
2050 | /* The fdset list is ordered by fdset ID */ | |
2051 | if (!mon_fdset_cur) { | |
2052 | QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next); | |
2053 | } else if (mon_fdset->id < mon_fdset_cur->id) { | |
2054 | QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next); | |
2055 | } else { | |
2056 | QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next); | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd)); | |
2061 | mon_fdset_fd->fd = fd; | |
2062 | mon_fdset_fd->removed = false; | |
2063 | if (has_opaque) { | |
2064 | mon_fdset_fd->opaque = g_strdup(opaque); | |
2065 | } | |
2066 | QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next); | |
2067 | ||
2068 | fdinfo = g_malloc0(sizeof(*fdinfo)); | |
2069 | fdinfo->fdset_id = mon_fdset->id; | |
2070 | fdinfo->fd = mon_fdset_fd->fd; | |
2071 | ||
2072 | return fdinfo; | |
2073 | } | |
2074 | ||
2075 | int monitor_fdset_get_fd(int64_t fdset_id, int flags) | |
2076 | { | |
2077 | #ifndef _WIN32 | |
2078 | MonFdset *mon_fdset; | |
2079 | MonFdsetFd *mon_fdset_fd; | |
2080 | int mon_fd_flags; | |
2081 | ||
2082 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2083 | if (mon_fdset->id != fdset_id) { | |
2084 | continue; | |
2085 | } | |
2086 | QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { | |
2087 | mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL); | |
2088 | if (mon_fd_flags == -1) { | |
2089 | return -1; | |
2090 | } | |
2091 | ||
2092 | if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) { | |
2093 | return mon_fdset_fd->fd; | |
2094 | } | |
2095 | } | |
2096 | errno = EACCES; | |
2097 | return -1; | |
2098 | } | |
2099 | #endif | |
2100 | ||
2101 | errno = ENOENT; | |
2102 | return -1; | |
2103 | } | |
2104 | ||
2105 | int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd) | |
2106 | { | |
2107 | MonFdset *mon_fdset; | |
2108 | MonFdsetFd *mon_fdset_fd_dup; | |
2109 | ||
2110 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2111 | if (mon_fdset->id != fdset_id) { | |
2112 | continue; | |
2113 | } | |
2114 | QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) { | |
2115 | if (mon_fdset_fd_dup->fd == dup_fd) { | |
2116 | return -1; | |
2117 | } | |
2118 | } | |
2119 | mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup)); | |
2120 | mon_fdset_fd_dup->fd = dup_fd; | |
2121 | QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next); | |
2122 | return 0; | |
2123 | } | |
2124 | return -1; | |
2125 | } | |
2126 | ||
2127 | static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove) | |
2128 | { | |
2129 | MonFdset *mon_fdset; | |
2130 | MonFdsetFd *mon_fdset_fd_dup; | |
2131 | ||
2132 | QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { | |
2133 | QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) { | |
2134 | if (mon_fdset_fd_dup->fd == dup_fd) { | |
2135 | if (remove) { | |
2136 | QLIST_REMOVE(mon_fdset_fd_dup, next); | |
2137 | if (QLIST_EMPTY(&mon_fdset->dup_fds)) { | |
2138 | monitor_fdset_cleanup(mon_fdset); | |
2139 | } | |
2140 | return -1; | |
2141 | } else { | |
2142 | return mon_fdset->id; | |
2143 | } | |
2144 | } | |
2145 | } | |
2146 | } | |
2147 | return -1; | |
2148 | } | |
2149 | ||
2150 | int monitor_fdset_dup_fd_find(int dup_fd) | |
2151 | { | |
2152 | return monitor_fdset_dup_fd_find_remove(dup_fd, false); | |
2153 | } | |
2154 | ||
2155 | void monitor_fdset_dup_fd_remove(int dup_fd) | |
2156 | { | |
2157 | monitor_fdset_dup_fd_find_remove(dup_fd, true); | |
2158 | } | |
2159 | ||
2160 | int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp) | |
2161 | { | |
2162 | int fd; | |
2163 | Error *local_err = NULL; | |
2164 | ||
2165 | if (!qemu_isdigit(fdname[0]) && mon) { | |
2166 | fd = monitor_get_fd(mon, fdname, &local_err); | |
2167 | } else { | |
2168 | fd = qemu_parse_fd(fdname); | |
2169 | if (fd == -1) { | |
2170 | error_setg(&local_err, "Invalid file descriptor number '%s'", | |
2171 | fdname); | |
2172 | } | |
2173 | } | |
2174 | if (local_err) { | |
2175 | error_propagate(errp, local_err); | |
2176 | assert(fd == -1); | |
2177 | } else { | |
2178 | assert(fd != -1); | |
2179 | } | |
2180 | ||
2181 | return fd; | |
2182 | } | |
2183 | ||
2184 | /* Please update hmp-commands.hx when adding or changing commands */ | |
2185 | static mon_cmd_t info_cmds[] = { | |
2186 | #include "hmp-commands-info.h" | |
2187 | { NULL, NULL, }, | |
2188 | }; | |
2189 | ||
2190 | /* mon_cmds and info_cmds would be sorted at runtime */ | |
2191 | static mon_cmd_t mon_cmds[] = { | |
2192 | #include "hmp-commands.h" | |
2193 | { NULL, NULL, }, | |
2194 | }; | |
2195 | ||
2196 | /*******************************************************************/ | |
2197 | ||
2198 | static const char *pch; | |
2199 | static sigjmp_buf expr_env; | |
2200 | ||
2201 | ||
2202 | static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN | |
2203 | expr_error(Monitor *mon, const char *fmt, ...) | |
2204 | { | |
2205 | va_list ap; | |
2206 | va_start(ap, fmt); | |
2207 | monitor_vprintf(mon, fmt, ap); | |
2208 | monitor_printf(mon, "\n"); | |
2209 | va_end(ap); | |
2210 | siglongjmp(expr_env, 1); | |
2211 | } | |
2212 | ||
2213 | /* return 0 if OK, -1 if not found */ | |
2214 | static int get_monitor_def(target_long *pval, const char *name) | |
2215 | { | |
2216 | const MonitorDef *md = target_monitor_defs(); | |
2217 | CPUState *cs = mon_get_cpu(); | |
2218 | void *ptr; | |
2219 | uint64_t tmp = 0; | |
2220 | int ret; | |
2221 | ||
2222 | if (cs == NULL || md == NULL) { | |
2223 | return -1; | |
2224 | } | |
2225 | ||
2226 | for(; md->name != NULL; md++) { | |
2227 | if (compare_cmd(name, md->name)) { | |
2228 | if (md->get_value) { | |
2229 | *pval = md->get_value(md, md->offset); | |
2230 | } else { | |
2231 | CPUArchState *env = mon_get_cpu_env(); | |
2232 | ptr = (uint8_t *)env + md->offset; | |
2233 | switch(md->type) { | |
2234 | case MD_I32: | |
2235 | *pval = *(int32_t *)ptr; | |
2236 | break; | |
2237 | case MD_TLONG: | |
2238 | *pval = *(target_long *)ptr; | |
2239 | break; | |
2240 | default: | |
2241 | *pval = 0; | |
2242 | break; | |
2243 | } | |
2244 | } | |
2245 | return 0; | |
2246 | } | |
2247 | } | |
2248 | ||
2249 | ret = target_get_monitor_def(cs, name, &tmp); | |
2250 | if (!ret) { | |
2251 | *pval = (target_long) tmp; | |
2252 | } | |
2253 | ||
2254 | return ret; | |
2255 | } | |
2256 | ||
2257 | static void next(void) | |
2258 | { | |
2259 | if (*pch != '\0') { | |
2260 | pch++; | |
2261 | while (qemu_isspace(*pch)) | |
2262 | pch++; | |
2263 | } | |
2264 | } | |
2265 | ||
2266 | static int64_t expr_sum(Monitor *mon); | |
2267 | ||
2268 | static int64_t expr_unary(Monitor *mon) | |
2269 | { | |
2270 | int64_t n; | |
2271 | char *p; | |
2272 | int ret; | |
2273 | ||
2274 | switch(*pch) { | |
2275 | case '+': | |
2276 | next(); | |
2277 | n = expr_unary(mon); | |
2278 | break; | |
2279 | case '-': | |
2280 | next(); | |
2281 | n = -expr_unary(mon); | |
2282 | break; | |
2283 | case '~': | |
2284 | next(); | |
2285 | n = ~expr_unary(mon); | |
2286 | break; | |
2287 | case '(': | |
2288 | next(); | |
2289 | n = expr_sum(mon); | |
2290 | if (*pch != ')') { | |
2291 | expr_error(mon, "')' expected"); | |
2292 | } | |
2293 | next(); | |
2294 | break; | |
2295 | case '\'': | |
2296 | pch++; | |
2297 | if (*pch == '\0') | |
2298 | expr_error(mon, "character constant expected"); | |
2299 | n = *pch; | |
2300 | pch++; | |
2301 | if (*pch != '\'') | |
2302 | expr_error(mon, "missing terminating \' character"); | |
2303 | next(); | |
2304 | break; | |
2305 | case '$': | |
2306 | { | |
2307 | char buf[128], *q; | |
2308 | target_long reg=0; | |
2309 | ||
2310 | pch++; | |
2311 | q = buf; | |
2312 | while ((*pch >= 'a' && *pch <= 'z') || | |
2313 | (*pch >= 'A' && *pch <= 'Z') || | |
2314 | (*pch >= '0' && *pch <= '9') || | |
2315 | *pch == '_' || *pch == '.') { | |
2316 | if ((q - buf) < sizeof(buf) - 1) | |
2317 | *q++ = *pch; | |
2318 | pch++; | |
2319 | } | |
2320 | while (qemu_isspace(*pch)) | |
2321 | pch++; | |
2322 | *q = 0; | |
2323 | ret = get_monitor_def(®, buf); | |
2324 | if (ret < 0) | |
2325 | expr_error(mon, "unknown register"); | |
2326 | n = reg; | |
2327 | } | |
2328 | break; | |
2329 | case '\0': | |
2330 | expr_error(mon, "unexpected end of expression"); | |
2331 | n = 0; | |
2332 | break; | |
2333 | default: | |
2334 | errno = 0; | |
2335 | n = strtoull(pch, &p, 0); | |
2336 | if (errno == ERANGE) { | |
2337 | expr_error(mon, "number too large"); | |
2338 | } | |
2339 | if (pch == p) { | |
2340 | expr_error(mon, "invalid char '%c' in expression", *p); | |
2341 | } | |
2342 | pch = p; | |
2343 | while (qemu_isspace(*pch)) | |
2344 | pch++; | |
2345 | break; | |
2346 | } | |
2347 | return n; | |
2348 | } | |
2349 | ||
2350 | ||
2351 | static int64_t expr_prod(Monitor *mon) | |
2352 | { | |
2353 | int64_t val, val2; | |
2354 | int op; | |
2355 | ||
2356 | val = expr_unary(mon); | |
2357 | for(;;) { | |
2358 | op = *pch; | |
2359 | if (op != '*' && op != '/' && op != '%') | |
2360 | break; | |
2361 | next(); | |
2362 | val2 = expr_unary(mon); | |
2363 | switch(op) { | |
2364 | default: | |
2365 | case '*': | |
2366 | val *= val2; | |
2367 | break; | |
2368 | case '/': | |
2369 | case '%': | |
2370 | if (val2 == 0) | |
2371 | expr_error(mon, "division by zero"); | |
2372 | if (op == '/') | |
2373 | val /= val2; | |
2374 | else | |
2375 | val %= val2; | |
2376 | break; | |
2377 | } | |
2378 | } | |
2379 | return val; | |
2380 | } | |
2381 | ||
2382 | static int64_t expr_logic(Monitor *mon) | |
2383 | { | |
2384 | int64_t val, val2; | |
2385 | int op; | |
2386 | ||
2387 | val = expr_prod(mon); | |
2388 | for(;;) { | |
2389 | op = *pch; | |
2390 | if (op != '&' && op != '|' && op != '^') | |
2391 | break; | |
2392 | next(); | |
2393 | val2 = expr_prod(mon); | |
2394 | switch(op) { | |
2395 | default: | |
2396 | case '&': | |
2397 | val &= val2; | |
2398 | break; | |
2399 | case '|': | |
2400 | val |= val2; | |
2401 | break; | |
2402 | case '^': | |
2403 | val ^= val2; | |
2404 | break; | |
2405 | } | |
2406 | } | |
2407 | return val; | |
2408 | } | |
2409 | ||
2410 | static int64_t expr_sum(Monitor *mon) | |
2411 | { | |
2412 | int64_t val, val2; | |
2413 | int op; | |
2414 | ||
2415 | val = expr_logic(mon); | |
2416 | for(;;) { | |
2417 | op = *pch; | |
2418 | if (op != '+' && op != '-') | |
2419 | break; | |
2420 | next(); | |
2421 | val2 = expr_logic(mon); | |
2422 | if (op == '+') | |
2423 | val += val2; | |
2424 | else | |
2425 | val -= val2; | |
2426 | } | |
2427 | return val; | |
2428 | } | |
2429 | ||
2430 | static int get_expr(Monitor *mon, int64_t *pval, const char **pp) | |
2431 | { | |
2432 | pch = *pp; | |
2433 | if (sigsetjmp(expr_env, 0)) { | |
2434 | *pp = pch; | |
2435 | return -1; | |
2436 | } | |
2437 | while (qemu_isspace(*pch)) | |
2438 | pch++; | |
2439 | *pval = expr_sum(mon); | |
2440 | *pp = pch; | |
2441 | return 0; | |
2442 | } | |
2443 | ||
2444 | static int get_double(Monitor *mon, double *pval, const char **pp) | |
2445 | { | |
2446 | const char *p = *pp; | |
2447 | char *tailp; | |
2448 | double d; | |
2449 | ||
2450 | d = strtod(p, &tailp); | |
2451 | if (tailp == p) { | |
2452 | monitor_printf(mon, "Number expected\n"); | |
2453 | return -1; | |
2454 | } | |
2455 | if (d != d || d - d != 0) { | |
2456 | /* NaN or infinity */ | |
2457 | monitor_printf(mon, "Bad number\n"); | |
2458 | return -1; | |
2459 | } | |
2460 | *pval = d; | |
2461 | *pp = tailp; | |
2462 | return 0; | |
2463 | } | |
2464 | ||
2465 | /* | |
2466 | * Store the command-name in cmdname, and return a pointer to | |
2467 | * the remaining of the command string. | |
2468 | */ | |
2469 | static const char *get_command_name(const char *cmdline, | |
2470 | char *cmdname, size_t nlen) | |
2471 | { | |
2472 | size_t len; | |
2473 | const char *p, *pstart; | |
2474 | ||
2475 | p = cmdline; | |
2476 | while (qemu_isspace(*p)) | |
2477 | p++; | |
2478 | if (*p == '\0') | |
2479 | return NULL; | |
2480 | pstart = p; | |
2481 | while (*p != '\0' && *p != '/' && !qemu_isspace(*p)) | |
2482 | p++; | |
2483 | len = p - pstart; | |
2484 | if (len > nlen - 1) | |
2485 | len = nlen - 1; | |
2486 | memcpy(cmdname, pstart, len); | |
2487 | cmdname[len] = '\0'; | |
2488 | return p; | |
2489 | } | |
2490 | ||
2491 | /** | |
2492 | * Read key of 'type' into 'key' and return the current | |
2493 | * 'type' pointer. | |
2494 | */ | |
2495 | static char *key_get_info(const char *type, char **key) | |
2496 | { | |
2497 | size_t len; | |
2498 | char *p, *str; | |
2499 | ||
2500 | if (*type == ',') | |
2501 | type++; | |
2502 | ||
2503 | p = strchr(type, ':'); | |
2504 | if (!p) { | |
2505 | *key = NULL; | |
2506 | return NULL; | |
2507 | } | |
2508 | len = p - type; | |
2509 | ||
2510 | str = g_malloc(len + 1); | |
2511 | memcpy(str, type, len); | |
2512 | str[len] = '\0'; | |
2513 | ||
2514 | *key = str; | |
2515 | return ++p; | |
2516 | } | |
2517 | ||
2518 | static int default_fmt_format = 'x'; | |
2519 | static int default_fmt_size = 4; | |
2520 | ||
2521 | static int is_valid_option(const char *c, const char *typestr) | |
2522 | { | |
2523 | char option[3]; | |
2524 | ||
2525 | option[0] = '-'; | |
2526 | option[1] = *c; | |
2527 | option[2] = '\0'; | |
2528 | ||
2529 | typestr = strstr(typestr, option); | |
2530 | return (typestr != NULL); | |
2531 | } | |
2532 | ||
2533 | static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table, | |
2534 | const char *cmdname) | |
2535 | { | |
2536 | const mon_cmd_t *cmd; | |
2537 | ||
2538 | for (cmd = disp_table; cmd->name != NULL; cmd++) { | |
2539 | if (compare_cmd(cmdname, cmd->name)) { | |
2540 | return cmd; | |
2541 | } | |
2542 | } | |
2543 | ||
2544 | return NULL; | |
2545 | } | |
2546 | ||
2547 | /* | |
2548 | * Parse command name from @cmdp according to command table @table. | |
2549 | * If blank, return NULL. | |
2550 | * Else, if no valid command can be found, report to @mon, and return | |
2551 | * NULL. | |
2552 | * Else, change @cmdp to point right behind the name, and return its | |
2553 | * command table entry. | |
2554 | * Do not assume the return value points into @table! It doesn't when | |
2555 | * the command is found in a sub-command table. | |
2556 | */ | |
2557 | static const mon_cmd_t *monitor_parse_command(Monitor *mon, | |
2558 | const char **cmdp, | |
2559 | mon_cmd_t *table) | |
2560 | { | |
2561 | const char *p; | |
2562 | const mon_cmd_t *cmd; | |
2563 | char cmdname[256]; | |
2564 | ||
2565 | /* extract the command name */ | |
2566 | p = get_command_name(*cmdp, cmdname, sizeof(cmdname)); | |
2567 | if (!p) | |
2568 | return NULL; | |
2569 | ||
2570 | cmd = search_dispatch_table(table, cmdname); | |
2571 | if (!cmd) { | |
2572 | monitor_printf(mon, "unknown command: '%.*s'\n", | |
2573 | (int)(p - *cmdp), *cmdp); | |
2574 | return NULL; | |
2575 | } | |
2576 | ||
2577 | /* filter out following useless space */ | |
2578 | while (qemu_isspace(*p)) { | |
2579 | p++; | |
2580 | } | |
2581 | ||
2582 | *cmdp = p; | |
2583 | /* search sub command */ | |
2584 | if (cmd->sub_table != NULL && *p != '\0') { | |
2585 | return monitor_parse_command(mon, cmdp, cmd->sub_table); | |
2586 | } | |
2587 | ||
2588 | return cmd; | |
2589 | } | |
2590 | ||
2591 | /* | |
2592 | * Parse arguments for @cmd. | |
2593 | * If it can't be parsed, report to @mon, and return NULL. | |
2594 | * Else, insert command arguments into a QDict, and return it. | |
2595 | * Note: On success, caller has to free the QDict structure. | |
2596 | */ | |
2597 | ||
2598 | static QDict *monitor_parse_arguments(Monitor *mon, | |
2599 | const char **endp, | |
2600 | const mon_cmd_t *cmd) | |
2601 | { | |
2602 | const char *typestr; | |
2603 | char *key; | |
2604 | int c; | |
2605 | const char *p = *endp; | |
2606 | char buf[1024]; | |
2607 | QDict *qdict = qdict_new(); | |
2608 | ||
2609 | /* parse the parameters */ | |
2610 | typestr = cmd->args_type; | |
2611 | for(;;) { | |
2612 | typestr = key_get_info(typestr, &key); | |
2613 | if (!typestr) | |
2614 | break; | |
2615 | c = *typestr; | |
2616 | typestr++; | |
2617 | switch(c) { | |
2618 | case 'F': | |
2619 | case 'B': | |
2620 | case 's': | |
2621 | { | |
2622 | int ret; | |
2623 | ||
2624 | while (qemu_isspace(*p)) | |
2625 | p++; | |
2626 | if (*typestr == '?') { | |
2627 | typestr++; | |
2628 | if (*p == '\0') { | |
2629 | /* no optional string: NULL argument */ | |
2630 | break; | |
2631 | } | |
2632 | } | |
2633 | ret = get_str(buf, sizeof(buf), &p); | |
2634 | if (ret < 0) { | |
2635 | switch(c) { | |
2636 | case 'F': | |
2637 | monitor_printf(mon, "%s: filename expected\n", | |
2638 | cmd->name); | |
2639 | break; | |
2640 | case 'B': | |
2641 | monitor_printf(mon, "%s: block device name expected\n", | |
2642 | cmd->name); | |
2643 | break; | |
2644 | default: | |
2645 | monitor_printf(mon, "%s: string expected\n", cmd->name); | |
2646 | break; | |
2647 | } | |
2648 | goto fail; | |
2649 | } | |
2650 | qdict_put(qdict, key, qstring_from_str(buf)); | |
2651 | } | |
2652 | break; | |
2653 | case 'O': | |
2654 | { | |
2655 | QemuOptsList *opts_list; | |
2656 | QemuOpts *opts; | |
2657 | ||
2658 | opts_list = qemu_find_opts(key); | |
2659 | if (!opts_list || opts_list->desc->name) { | |
2660 | goto bad_type; | |
2661 | } | |
2662 | while (qemu_isspace(*p)) { | |
2663 | p++; | |
2664 | } | |
2665 | if (!*p) | |
2666 | break; | |
2667 | if (get_str(buf, sizeof(buf), &p) < 0) { | |
2668 | goto fail; | |
2669 | } | |
2670 | opts = qemu_opts_parse_noisily(opts_list, buf, true); | |
2671 | if (!opts) { | |
2672 | goto fail; | |
2673 | } | |
2674 | qemu_opts_to_qdict(opts, qdict); | |
2675 | qemu_opts_del(opts); | |
2676 | } | |
2677 | break; | |
2678 | case '/': | |
2679 | { | |
2680 | int count, format, size; | |
2681 | ||
2682 | while (qemu_isspace(*p)) | |
2683 | p++; | |
2684 | if (*p == '/') { | |
2685 | /* format found */ | |
2686 | p++; | |
2687 | count = 1; | |
2688 | if (qemu_isdigit(*p)) { | |
2689 | count = 0; | |
2690 | while (qemu_isdigit(*p)) { | |
2691 | count = count * 10 + (*p - '0'); | |
2692 | p++; | |
2693 | } | |
2694 | } | |
2695 | size = -1; | |
2696 | format = -1; | |
2697 | for(;;) { | |
2698 | switch(*p) { | |
2699 | case 'o': | |
2700 | case 'd': | |
2701 | case 'u': | |
2702 | case 'x': | |
2703 | case 'i': | |
2704 | case 'c': | |
2705 | format = *p++; | |
2706 | break; | |
2707 | case 'b': | |
2708 | size = 1; | |
2709 | p++; | |
2710 | break; | |
2711 | case 'h': | |
2712 | size = 2; | |
2713 | p++; | |
2714 | break; | |
2715 | case 'w': | |
2716 | size = 4; | |
2717 | p++; | |
2718 | break; | |
2719 | case 'g': | |
2720 | case 'L': | |
2721 | size = 8; | |
2722 | p++; | |
2723 | break; | |
2724 | default: | |
2725 | goto next; | |
2726 | } | |
2727 | } | |
2728 | next: | |
2729 | if (*p != '\0' && !qemu_isspace(*p)) { | |
2730 | monitor_printf(mon, "invalid char in format: '%c'\n", | |
2731 | *p); | |
2732 | goto fail; | |
2733 | } | |
2734 | if (format < 0) | |
2735 | format = default_fmt_format; | |
2736 | if (format != 'i') { | |
2737 | /* for 'i', not specifying a size gives -1 as size */ | |
2738 | if (size < 0) | |
2739 | size = default_fmt_size; | |
2740 | default_fmt_size = size; | |
2741 | } | |
2742 | default_fmt_format = format; | |
2743 | } else { | |
2744 | count = 1; | |
2745 | format = default_fmt_format; | |
2746 | if (format != 'i') { | |
2747 | size = default_fmt_size; | |
2748 | } else { | |
2749 | size = -1; | |
2750 | } | |
2751 | } | |
2752 | qdict_put(qdict, "count", qint_from_int(count)); | |
2753 | qdict_put(qdict, "format", qint_from_int(format)); | |
2754 | qdict_put(qdict, "size", qint_from_int(size)); | |
2755 | } | |
2756 | break; | |
2757 | case 'i': | |
2758 | case 'l': | |
2759 | case 'M': | |
2760 | { | |
2761 | int64_t val; | |
2762 | ||
2763 | while (qemu_isspace(*p)) | |
2764 | p++; | |
2765 | if (*typestr == '?' || *typestr == '.') { | |
2766 | if (*typestr == '?') { | |
2767 | if (*p == '\0') { | |
2768 | typestr++; | |
2769 | break; | |
2770 | } | |
2771 | } else { | |
2772 | if (*p == '.') { | |
2773 | p++; | |
2774 | while (qemu_isspace(*p)) | |
2775 | p++; | |
2776 | } else { | |
2777 | typestr++; | |
2778 | break; | |
2779 | } | |
2780 | } | |
2781 | typestr++; | |
2782 | } | |
2783 | if (get_expr(mon, &val, &p)) | |
2784 | goto fail; | |
2785 | /* Check if 'i' is greater than 32-bit */ | |
2786 | if ((c == 'i') && ((val >> 32) & 0xffffffff)) { | |
2787 | monitor_printf(mon, "\'%s\' has failed: ", cmd->name); | |
2788 | monitor_printf(mon, "integer is for 32-bit values\n"); | |
2789 | goto fail; | |
2790 | } else if (c == 'M') { | |
2791 | if (val < 0) { | |
2792 | monitor_printf(mon, "enter a positive value\n"); | |
2793 | goto fail; | |
2794 | } | |
2795 | val <<= 20; | |
2796 | } | |
2797 | qdict_put(qdict, key, qint_from_int(val)); | |
2798 | } | |
2799 | break; | |
2800 | case 'o': | |
2801 | { | |
2802 | int ret; | |
2803 | uint64_t val; | |
2804 | char *end; | |
2805 | ||
2806 | while (qemu_isspace(*p)) { | |
2807 | p++; | |
2808 | } | |
2809 | if (*typestr == '?') { | |
2810 | typestr++; | |
2811 | if (*p == '\0') { | |
2812 | break; | |
2813 | } | |
2814 | } | |
2815 | ret = qemu_strtosz_MiB(p, &end, &val); | |
2816 | if (ret < 0 || val > INT64_MAX) { | |
2817 | monitor_printf(mon, "invalid size\n"); | |
2818 | goto fail; | |
2819 | } | |
2820 | qdict_put(qdict, key, qint_from_int(val)); | |
2821 | p = end; | |
2822 | } | |
2823 | break; | |
2824 | case 'T': | |
2825 | { | |
2826 | double val; | |
2827 | ||
2828 | while (qemu_isspace(*p)) | |
2829 | p++; | |
2830 | if (*typestr == '?') { | |
2831 | typestr++; | |
2832 | if (*p == '\0') { | |
2833 | break; | |
2834 | } | |
2835 | } | |
2836 | if (get_double(mon, &val, &p) < 0) { | |
2837 | goto fail; | |
2838 | } | |
2839 | if (p[0] && p[1] == 's') { | |
2840 | switch (*p) { | |
2841 | case 'm': | |
2842 | val /= 1e3; p += 2; break; | |
2843 | case 'u': | |
2844 | val /= 1e6; p += 2; break; | |
2845 | case 'n': | |
2846 | val /= 1e9; p += 2; break; | |
2847 | } | |
2848 | } | |
2849 | if (*p && !qemu_isspace(*p)) { | |
2850 | monitor_printf(mon, "Unknown unit suffix\n"); | |
2851 | goto fail; | |
2852 | } | |
2853 | qdict_put(qdict, key, qfloat_from_double(val)); | |
2854 | } | |
2855 | break; | |
2856 | case 'b': | |
2857 | { | |
2858 | const char *beg; | |
2859 | bool val; | |
2860 | ||
2861 | while (qemu_isspace(*p)) { | |
2862 | p++; | |
2863 | } | |
2864 | beg = p; | |
2865 | while (qemu_isgraph(*p)) { | |
2866 | p++; | |
2867 | } | |
2868 | if (p - beg == 2 && !memcmp(beg, "on", p - beg)) { | |
2869 | val = true; | |
2870 | } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) { | |
2871 | val = false; | |
2872 | } else { | |
2873 | monitor_printf(mon, "Expected 'on' or 'off'\n"); | |
2874 | goto fail; | |
2875 | } | |
2876 | qdict_put(qdict, key, qbool_from_bool(val)); | |
2877 | } | |
2878 | break; | |
2879 | case '-': | |
2880 | { | |
2881 | const char *tmp = p; | |
2882 | int skip_key = 0; | |
2883 | /* option */ | |
2884 | ||
2885 | c = *typestr++; | |
2886 | if (c == '\0') | |
2887 | goto bad_type; | |
2888 | while (qemu_isspace(*p)) | |
2889 | p++; | |
2890 | if (*p == '-') { | |
2891 | p++; | |
2892 | if(c != *p) { | |
2893 | if(!is_valid_option(p, typestr)) { | |
2894 | ||
2895 | monitor_printf(mon, "%s: unsupported option -%c\n", | |
2896 | cmd->name, *p); | |
2897 | goto fail; | |
2898 | } else { | |
2899 | skip_key = 1; | |
2900 | } | |
2901 | } | |
2902 | if(skip_key) { | |
2903 | p = tmp; | |
2904 | } else { | |
2905 | /* has option */ | |
2906 | p++; | |
2907 | qdict_put(qdict, key, qbool_from_bool(true)); | |
2908 | } | |
2909 | } | |
2910 | } | |
2911 | break; | |
2912 | case 'S': | |
2913 | { | |
2914 | /* package all remaining string */ | |
2915 | int len; | |
2916 | ||
2917 | while (qemu_isspace(*p)) { | |
2918 | p++; | |
2919 | } | |
2920 | if (*typestr == '?') { | |
2921 | typestr++; | |
2922 | if (*p == '\0') { | |
2923 | /* no remaining string: NULL argument */ | |
2924 | break; | |
2925 | } | |
2926 | } | |
2927 | len = strlen(p); | |
2928 | if (len <= 0) { | |
2929 | monitor_printf(mon, "%s: string expected\n", | |
2930 | cmd->name); | |
2931 | goto fail; | |
2932 | } | |
2933 | qdict_put(qdict, key, qstring_from_str(p)); | |
2934 | p += len; | |
2935 | } | |
2936 | break; | |
2937 | default: | |
2938 | bad_type: | |
2939 | monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c); | |
2940 | goto fail; | |
2941 | } | |
2942 | g_free(key); | |
2943 | key = NULL; | |
2944 | } | |
2945 | /* check that all arguments were parsed */ | |
2946 | while (qemu_isspace(*p)) | |
2947 | p++; | |
2948 | if (*p != '\0') { | |
2949 | monitor_printf(mon, "%s: extraneous characters at the end of line\n", | |
2950 | cmd->name); | |
2951 | goto fail; | |
2952 | } | |
2953 | ||
2954 | return qdict; | |
2955 | ||
2956 | fail: | |
2957 | QDECREF(qdict); | |
2958 | g_free(key); | |
2959 | return NULL; | |
2960 | } | |
2961 | ||
2962 | static void handle_hmp_command(Monitor *mon, const char *cmdline) | |
2963 | { | |
2964 | QDict *qdict; | |
2965 | const mon_cmd_t *cmd; | |
2966 | ||
2967 | cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table); | |
2968 | if (!cmd) { | |
2969 | return; | |
2970 | } | |
2971 | ||
2972 | qdict = monitor_parse_arguments(mon, &cmdline, cmd); | |
2973 | if (!qdict) { | |
2974 | monitor_printf(mon, "Try \"help %s\" for more information\n", | |
2975 | cmd->name); | |
2976 | return; | |
2977 | } | |
2978 | ||
2979 | cmd->cmd(mon, qdict); | |
2980 | QDECREF(qdict); | |
2981 | } | |
2982 | ||
2983 | static void cmd_completion(Monitor *mon, const char *name, const char *list) | |
2984 | { | |
2985 | const char *p, *pstart; | |
2986 | char cmd[128]; | |
2987 | int len; | |
2988 | ||
2989 | p = list; | |
2990 | for(;;) { | |
2991 | pstart = p; | |
2992 | p = strchr(p, '|'); | |
2993 | if (!p) | |
2994 | p = pstart + strlen(pstart); | |
2995 | len = p - pstart; | |
2996 | if (len > sizeof(cmd) - 2) | |
2997 | len = sizeof(cmd) - 2; | |
2998 | memcpy(cmd, pstart, len); | |
2999 | cmd[len] = '\0'; | |
3000 | if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) { | |
3001 | readline_add_completion(mon->rs, cmd); | |
3002 | } | |
3003 | if (*p == '\0') | |
3004 | break; | |
3005 | p++; | |
3006 | } | |
3007 | } | |
3008 | ||
3009 | static void file_completion(Monitor *mon, const char *input) | |
3010 | { | |
3011 | DIR *ffs; | |
3012 | struct dirent *d; | |
3013 | char path[1024]; | |
3014 | char file[1024], file_prefix[1024]; | |
3015 | int input_path_len; | |
3016 | const char *p; | |
3017 | ||
3018 | p = strrchr(input, '/'); | |
3019 | if (!p) { | |
3020 | input_path_len = 0; | |
3021 | pstrcpy(file_prefix, sizeof(file_prefix), input); | |
3022 | pstrcpy(path, sizeof(path), "."); | |
3023 | } else { | |
3024 | input_path_len = p - input + 1; | |
3025 | memcpy(path, input, input_path_len); | |
3026 | if (input_path_len > sizeof(path) - 1) | |
3027 | input_path_len = sizeof(path) - 1; | |
3028 | path[input_path_len] = '\0'; | |
3029 | pstrcpy(file_prefix, sizeof(file_prefix), p + 1); | |
3030 | } | |
3031 | ||
3032 | ffs = opendir(path); | |
3033 | if (!ffs) | |
3034 | return; | |
3035 | for(;;) { | |
3036 | struct stat sb; | |
3037 | d = readdir(ffs); | |
3038 | if (!d) | |
3039 | break; | |
3040 | ||
3041 | if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) { | |
3042 | continue; | |
3043 | } | |
3044 | ||
3045 | if (strstart(d->d_name, file_prefix, NULL)) { | |
3046 | memcpy(file, input, input_path_len); | |
3047 | if (input_path_len < sizeof(file)) | |
3048 | pstrcpy(file + input_path_len, sizeof(file) - input_path_len, | |
3049 | d->d_name); | |
3050 | /* stat the file to find out if it's a directory. | |
3051 | * In that case add a slash to speed up typing long paths | |
3052 | */ | |
3053 | if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) { | |
3054 | pstrcat(file, sizeof(file), "/"); | |
3055 | } | |
3056 | readline_add_completion(mon->rs, file); | |
3057 | } | |
3058 | } | |
3059 | closedir(ffs); | |
3060 | } | |
3061 | ||
3062 | static const char *next_arg_type(const char *typestr) | |
3063 | { | |
3064 | const char *p = strchr(typestr, ':'); | |
3065 | return (p != NULL ? ++p : typestr); | |
3066 | } | |
3067 | ||
3068 | static void add_completion_option(ReadLineState *rs, const char *str, | |
3069 | const char *option) | |
3070 | { | |
3071 | if (!str || !option) { | |
3072 | return; | |
3073 | } | |
3074 | if (!strncmp(option, str, strlen(str))) { | |
3075 | readline_add_completion(rs, option); | |
3076 | } | |
3077 | } | |
3078 | ||
3079 | void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str) | |
3080 | { | |
3081 | size_t len; | |
3082 | ChardevBackendInfoList *list, *start; | |
3083 | ||
3084 | if (nb_args != 2) { | |
3085 | return; | |
3086 | } | |
3087 | len = strlen(str); | |
3088 | readline_set_completion_index(rs, len); | |
3089 | ||
3090 | start = list = qmp_query_chardev_backends(NULL); | |
3091 | while (list) { | |
3092 | const char *chr_name = list->value->name; | |
3093 | ||
3094 | if (!strncmp(chr_name, str, len)) { | |
3095 | readline_add_completion(rs, chr_name); | |
3096 | } | |
3097 | list = list->next; | |
3098 | } | |
3099 | qapi_free_ChardevBackendInfoList(start); | |
3100 | } | |
3101 | ||
3102 | void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str) | |
3103 | { | |
3104 | size_t len; | |
3105 | int i; | |
3106 | ||
3107 | if (nb_args != 2) { | |
3108 | return; | |
3109 | } | |
3110 | len = strlen(str); | |
3111 | readline_set_completion_index(rs, len); | |
3112 | for (i = 0; NetClientDriver_lookup[i]; i++) { | |
3113 | add_completion_option(rs, str, NetClientDriver_lookup[i]); | |
3114 | } | |
3115 | } | |
3116 | ||
3117 | void device_add_completion(ReadLineState *rs, int nb_args, const char *str) | |
3118 | { | |
3119 | GSList *list, *elt; | |
3120 | size_t len; | |
3121 | ||
3122 | if (nb_args != 2) { | |
3123 | return; | |
3124 | } | |
3125 | ||
3126 | len = strlen(str); | |
3127 | readline_set_completion_index(rs, len); | |
3128 | list = elt = object_class_get_list(TYPE_DEVICE, false); | |
3129 | while (elt) { | |
3130 | const char *name; | |
3131 | DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, | |
3132 | TYPE_DEVICE); | |
3133 | name = object_class_get_name(OBJECT_CLASS(dc)); | |
3134 | ||
3135 | if (!dc->cannot_instantiate_with_device_add_yet | |
3136 | && !strncmp(name, str, len)) { | |
3137 | readline_add_completion(rs, name); | |
3138 | } | |
3139 | elt = elt->next; | |
3140 | } | |
3141 | g_slist_free(list); | |
3142 | } | |
3143 | ||
3144 | void object_add_completion(ReadLineState *rs, int nb_args, const char *str) | |
3145 | { | |
3146 | GSList *list, *elt; | |
3147 | size_t len; | |
3148 | ||
3149 | if (nb_args != 2) { | |
3150 | return; | |
3151 | } | |
3152 | ||
3153 | len = strlen(str); | |
3154 | readline_set_completion_index(rs, len); | |
3155 | list = elt = object_class_get_list(TYPE_USER_CREATABLE, false); | |
3156 | while (elt) { | |
3157 | const char *name; | |
3158 | ||
3159 | name = object_class_get_name(OBJECT_CLASS(elt->data)); | |
3160 | if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) { | |
3161 | readline_add_completion(rs, name); | |
3162 | } | |
3163 | elt = elt->next; | |
3164 | } | |
3165 | g_slist_free(list); | |
3166 | } | |
3167 | ||
3168 | static void peripheral_device_del_completion(ReadLineState *rs, | |
3169 | const char *str, size_t len) | |
3170 | { | |
3171 | Object *peripheral = container_get(qdev_get_machine(), "/peripheral"); | |
3172 | GSList *list, *item; | |
3173 | ||
3174 | list = qdev_build_hotpluggable_device_list(peripheral); | |
3175 | if (!list) { | |
3176 | return; | |
3177 | } | |
3178 | ||
3179 | for (item = list; item; item = g_slist_next(item)) { | |
3180 | DeviceState *dev = item->data; | |
3181 | ||
3182 | if (dev->id && !strncmp(str, dev->id, len)) { | |
3183 | readline_add_completion(rs, dev->id); | |
3184 | } | |
3185 | } | |
3186 | ||
3187 | g_slist_free(list); | |
3188 | } | |
3189 | ||
3190 | void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str) | |
3191 | { | |
3192 | size_t len; | |
3193 | ChardevInfoList *list, *start; | |
3194 | ||
3195 | if (nb_args != 2) { | |
3196 | return; | |
3197 | } | |
3198 | len = strlen(str); | |
3199 | readline_set_completion_index(rs, len); | |
3200 | ||
3201 | start = list = qmp_query_chardev(NULL); | |
3202 | while (list) { | |
3203 | ChardevInfo *chr = list->value; | |
3204 | ||
3205 | if (!strncmp(chr->label, str, len)) { | |
3206 | readline_add_completion(rs, chr->label); | |
3207 | } | |
3208 | list = list->next; | |
3209 | } | |
3210 | qapi_free_ChardevInfoList(start); | |
3211 | } | |
3212 | ||
3213 | static void ringbuf_completion(ReadLineState *rs, const char *str) | |
3214 | { | |
3215 | size_t len; | |
3216 | ChardevInfoList *list, *start; | |
3217 | ||
3218 | len = strlen(str); | |
3219 | readline_set_completion_index(rs, len); | |
3220 | ||
3221 | start = list = qmp_query_chardev(NULL); | |
3222 | while (list) { | |
3223 | ChardevInfo *chr_info = list->value; | |
3224 | ||
3225 | if (!strncmp(chr_info->label, str, len)) { | |
3226 | Chardev *chr = qemu_chr_find(chr_info->label); | |
3227 | if (chr && CHARDEV_IS_RINGBUF(chr)) { | |
3228 | readline_add_completion(rs, chr_info->label); | |
3229 | } | |
3230 | } | |
3231 | list = list->next; | |
3232 | } | |
3233 | qapi_free_ChardevInfoList(start); | |
3234 | } | |
3235 | ||
3236 | void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str) | |
3237 | { | |
3238 | if (nb_args != 2) { | |
3239 | return; | |
3240 | } | |
3241 | ringbuf_completion(rs, str); | |
3242 | } | |
3243 | ||
3244 | void device_del_completion(ReadLineState *rs, int nb_args, const char *str) | |
3245 | { | |
3246 | size_t len; | |
3247 | ||
3248 | if (nb_args != 2) { | |
3249 | return; | |
3250 | } | |
3251 | ||
3252 | len = strlen(str); | |
3253 | readline_set_completion_index(rs, len); | |
3254 | peripheral_device_del_completion(rs, str, len); | |
3255 | } | |
3256 | ||
3257 | void object_del_completion(ReadLineState *rs, int nb_args, const char *str) | |
3258 | { | |
3259 | ObjectPropertyInfoList *list, *start; | |
3260 | size_t len; | |
3261 | ||
3262 | if (nb_args != 2) { | |
3263 | return; | |
3264 | } | |
3265 | len = strlen(str); | |
3266 | readline_set_completion_index(rs, len); | |
3267 | ||
3268 | start = list = qmp_qom_list("/objects", NULL); | |
3269 | while (list) { | |
3270 | ObjectPropertyInfo *info = list->value; | |
3271 | ||
3272 | if (!strncmp(info->type, "child<", 5) | |
3273 | && !strncmp(info->name, str, len)) { | |
3274 | readline_add_completion(rs, info->name); | |
3275 | } | |
3276 | list = list->next; | |
3277 | } | |
3278 | qapi_free_ObjectPropertyInfoList(start); | |
3279 | } | |
3280 | ||
3281 | void sendkey_completion(ReadLineState *rs, int nb_args, const char *str) | |
3282 | { | |
3283 | int i; | |
3284 | char *sep; | |
3285 | size_t len; | |
3286 | ||
3287 | if (nb_args != 2) { | |
3288 | return; | |
3289 | } | |
3290 | sep = strrchr(str, '-'); | |
3291 | if (sep) { | |
3292 | str = sep + 1; | |
3293 | } | |
3294 | len = strlen(str); | |
3295 | readline_set_completion_index(rs, len); | |
3296 | for (i = 0; i < Q_KEY_CODE__MAX; i++) { | |
3297 | if (!strncmp(str, QKeyCode_lookup[i], len)) { | |
3298 | readline_add_completion(rs, QKeyCode_lookup[i]); | |
3299 | } | |
3300 | } | |
3301 | } | |
3302 | ||
3303 | void set_link_completion(ReadLineState *rs, int nb_args, const char *str) | |
3304 | { | |
3305 | size_t len; | |
3306 | ||
3307 | len = strlen(str); | |
3308 | readline_set_completion_index(rs, len); | |
3309 | if (nb_args == 2) { | |
3310 | NetClientState *ncs[MAX_QUEUE_NUM]; | |
3311 | int count, i; | |
3312 | count = qemu_find_net_clients_except(NULL, ncs, | |
3313 | NET_CLIENT_DRIVER_NONE, | |
3314 | MAX_QUEUE_NUM); | |
3315 | for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { | |
3316 | const char *name = ncs[i]->name; | |
3317 | if (!strncmp(str, name, len)) { | |
3318 | readline_add_completion(rs, name); | |
3319 | } | |
3320 | } | |
3321 | } else if (nb_args == 3) { | |
3322 | add_completion_option(rs, str, "on"); | |
3323 | add_completion_option(rs, str, "off"); | |
3324 | } | |
3325 | } | |
3326 | ||
3327 | void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str) | |
3328 | { | |
3329 | int len, count, i; | |
3330 | NetClientState *ncs[MAX_QUEUE_NUM]; | |
3331 | ||
3332 | if (nb_args != 2) { | |
3333 | return; | |
3334 | } | |
3335 | ||
3336 | len = strlen(str); | |
3337 | readline_set_completion_index(rs, len); | |
3338 | count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC, | |
3339 | MAX_QUEUE_NUM); | |
3340 | for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { | |
3341 | QemuOpts *opts; | |
3342 | const char *name = ncs[i]->name; | |
3343 | if (strncmp(str, name, len)) { | |
3344 | continue; | |
3345 | } | |
3346 | opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name); | |
3347 | if (opts) { | |
3348 | readline_add_completion(rs, name); | |
3349 | } | |
3350 | } | |
3351 | } | |
3352 | ||
3353 | void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str) | |
3354 | { | |
3355 | size_t len; | |
3356 | ||
3357 | len = strlen(str); | |
3358 | readline_set_completion_index(rs, len); | |
3359 | if (nb_args == 2) { | |
3360 | TraceEventIter iter; | |
3361 | TraceEvent *ev; | |
3362 | char *pattern = g_strdup_printf("%s*", str); | |
3363 | trace_event_iter_init(&iter, pattern); | |
3364 | while ((ev = trace_event_iter_next(&iter)) != NULL) { | |
3365 | readline_add_completion(rs, trace_event_get_name(ev)); | |
3366 | } | |
3367 | g_free(pattern); | |
3368 | } | |
3369 | } | |
3370 | ||
3371 | void trace_event_completion(ReadLineState *rs, int nb_args, const char *str) | |
3372 | { | |
3373 | size_t len; | |
3374 | ||
3375 | len = strlen(str); | |
3376 | readline_set_completion_index(rs, len); | |
3377 | if (nb_args == 2) { | |
3378 | TraceEventIter iter; | |
3379 | TraceEvent *ev; | |
3380 | char *pattern = g_strdup_printf("%s*", str); | |
3381 | trace_event_iter_init(&iter, pattern); | |
3382 | while ((ev = trace_event_iter_next(&iter)) != NULL) { | |
3383 | readline_add_completion(rs, trace_event_get_name(ev)); | |
3384 | } | |
3385 | g_free(pattern); | |
3386 | } else if (nb_args == 3) { | |
3387 | add_completion_option(rs, str, "on"); | |
3388 | add_completion_option(rs, str, "off"); | |
3389 | } | |
3390 | } | |
3391 | ||
3392 | void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str) | |
3393 | { | |
3394 | int i; | |
3395 | ||
3396 | if (nb_args != 2) { | |
3397 | return; | |
3398 | } | |
3399 | readline_set_completion_index(rs, strlen(str)); | |
3400 | for (i = 0; WatchdogExpirationAction_lookup[i]; i++) { | |
3401 | add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]); | |
3402 | } | |
3403 | } | |
3404 | ||
3405 | void migrate_set_capability_completion(ReadLineState *rs, int nb_args, | |
3406 | const char *str) | |
3407 | { | |
3408 | size_t len; | |
3409 | ||
3410 | len = strlen(str); | |
3411 | readline_set_completion_index(rs, len); | |
3412 | if (nb_args == 2) { | |
3413 | int i; | |
3414 | for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { | |
3415 | const char *name = MigrationCapability_lookup[i]; | |
3416 | if (!strncmp(str, name, len)) { | |
3417 | readline_add_completion(rs, name); | |
3418 | } | |
3419 | } | |
3420 | } else if (nb_args == 3) { | |
3421 | add_completion_option(rs, str, "on"); | |
3422 | add_completion_option(rs, str, "off"); | |
3423 | } | |
3424 | } | |
3425 | ||
3426 | void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, | |
3427 | const char *str) | |
3428 | { | |
3429 | size_t len; | |
3430 | ||
3431 | len = strlen(str); | |
3432 | readline_set_completion_index(rs, len); | |
3433 | if (nb_args == 2) { | |
3434 | int i; | |
3435 | for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { | |
3436 | const char *name = MigrationParameter_lookup[i]; | |
3437 | if (!strncmp(str, name, len)) { | |
3438 | readline_add_completion(rs, name); | |
3439 | } | |
3440 | } | |
3441 | } | |
3442 | } | |
3443 | ||
3444 | void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str) | |
3445 | { | |
3446 | int i; | |
3447 | size_t len; | |
3448 | if (nb_args != 2) { | |
3449 | return; | |
3450 | } | |
3451 | len = strlen(str); | |
3452 | readline_set_completion_index(rs, len); | |
3453 | for (i = 0; host_net_devices[i]; i++) { | |
3454 | if (!strncmp(host_net_devices[i], str, len)) { | |
3455 | readline_add_completion(rs, host_net_devices[i]); | |
3456 | } | |
3457 | } | |
3458 | } | |
3459 | ||
3460 | void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str) | |
3461 | { | |
3462 | NetClientState *ncs[MAX_QUEUE_NUM]; | |
3463 | int count, i, len; | |
3464 | ||
3465 | len = strlen(str); | |
3466 | readline_set_completion_index(rs, len); | |
3467 | if (nb_args == 2) { | |
3468 | count = qemu_find_net_clients_except(NULL, ncs, | |
3469 | NET_CLIENT_DRIVER_NONE, | |
3470 | MAX_QUEUE_NUM); | |
3471 | for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { | |
3472 | int id; | |
3473 | char name[16]; | |
3474 | ||
3475 | if (net_hub_id_for_client(ncs[i], &id)) { | |
3476 | continue; | |
3477 | } | |
3478 | snprintf(name, sizeof(name), "%d", id); | |
3479 | if (!strncmp(str, name, len)) { | |
3480 | readline_add_completion(rs, name); | |
3481 | } | |
3482 | } | |
3483 | return; | |
3484 | } else if (nb_args == 3) { | |
3485 | count = qemu_find_net_clients_except(NULL, ncs, | |
3486 | NET_CLIENT_DRIVER_NIC, | |
3487 | MAX_QUEUE_NUM); | |
3488 | for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { | |
3489 | int id; | |
3490 | const char *name; | |
3491 | ||
3492 | if (ncs[i]->info->type == NET_CLIENT_DRIVER_HUBPORT || | |
3493 | net_hub_id_for_client(ncs[i], &id)) { | |
3494 | continue; | |
3495 | } | |
3496 | name = ncs[i]->name; | |
3497 | if (!strncmp(str, name, len)) { | |
3498 | readline_add_completion(rs, name); | |
3499 | } | |
3500 | } | |
3501 | return; | |
3502 | } | |
3503 | } | |
3504 | ||
3505 | static void vm_completion(ReadLineState *rs, const char *str) | |
3506 | { | |
3507 | size_t len; | |
3508 | BlockDriverState *bs; | |
3509 | BdrvNextIterator it; | |
3510 | ||
3511 | len = strlen(str); | |
3512 | readline_set_completion_index(rs, len); | |
3513 | ||
3514 | for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) { | |
3515 | SnapshotInfoList *snapshots, *snapshot; | |
3516 | AioContext *ctx = bdrv_get_aio_context(bs); | |
3517 | bool ok = false; | |
3518 | ||
3519 | aio_context_acquire(ctx); | |
3520 | if (bdrv_can_snapshot(bs)) { | |
3521 | ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; | |
3522 | } | |
3523 | aio_context_release(ctx); | |
3524 | if (!ok) { | |
3525 | continue; | |
3526 | } | |
3527 | ||
3528 | snapshot = snapshots; | |
3529 | while (snapshot) { | |
3530 | char *completion = snapshot->value->name; | |
3531 | if (!strncmp(str, completion, len)) { | |
3532 | readline_add_completion(rs, completion); | |
3533 | } | |
3534 | completion = snapshot->value->id; | |
3535 | if (!strncmp(str, completion, len)) { | |
3536 | readline_add_completion(rs, completion); | |
3537 | } | |
3538 | snapshot = snapshot->next; | |
3539 | } | |
3540 | qapi_free_SnapshotInfoList(snapshots); | |
3541 | } | |
3542 | ||
3543 | } | |
3544 | ||
3545 | void delvm_completion(ReadLineState *rs, int nb_args, const char *str) | |
3546 | { | |
3547 | if (nb_args == 2) { | |
3548 | vm_completion(rs, str); | |
3549 | } | |
3550 | } | |
3551 | ||
3552 | void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) | |
3553 | { | |
3554 | if (nb_args == 2) { | |
3555 | vm_completion(rs, str); | |
3556 | } | |
3557 | } | |
3558 | ||
3559 | static void monitor_find_completion_by_table(Monitor *mon, | |
3560 | const mon_cmd_t *cmd_table, | |
3561 | char **args, | |
3562 | int nb_args) | |
3563 | { | |
3564 | const char *cmdname; | |
3565 | int i; | |
3566 | const char *ptype, *str, *name; | |
3567 | const mon_cmd_t *cmd; | |
3568 | BlockBackend *blk = NULL; | |
3569 | ||
3570 | if (nb_args <= 1) { | |
3571 | /* command completion */ | |
3572 | if (nb_args == 0) | |
3573 | cmdname = ""; | |
3574 | else | |
3575 | cmdname = args[0]; | |
3576 | readline_set_completion_index(mon->rs, strlen(cmdname)); | |
3577 | for (cmd = cmd_table; cmd->name != NULL; cmd++) { | |
3578 | cmd_completion(mon, cmdname, cmd->name); | |
3579 | } | |
3580 | } else { | |
3581 | /* find the command */ | |
3582 | for (cmd = cmd_table; cmd->name != NULL; cmd++) { | |
3583 | if (compare_cmd(args[0], cmd->name)) { | |
3584 | break; | |
3585 | } | |
3586 | } | |
3587 | if (!cmd->name) { | |
3588 | return; | |
3589 | } | |
3590 | ||
3591 | if (cmd->sub_table) { | |
3592 | /* do the job again */ | |
3593 | monitor_find_completion_by_table(mon, cmd->sub_table, | |
3594 | &args[1], nb_args - 1); | |
3595 | return; | |
3596 | } | |
3597 | if (cmd->command_completion) { | |
3598 | cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]); | |
3599 | return; | |
3600 | } | |
3601 | ||
3602 | ptype = next_arg_type(cmd->args_type); | |
3603 | for(i = 0; i < nb_args - 2; i++) { | |
3604 | if (*ptype != '\0') { | |
3605 | ptype = next_arg_type(ptype); | |
3606 | while (*ptype == '?') | |
3607 | ptype = next_arg_type(ptype); | |
3608 | } | |
3609 | } | |
3610 | str = args[nb_args - 1]; | |
3611 | while (*ptype == '-' && ptype[1] != '\0') { | |
3612 | ptype = next_arg_type(ptype); | |
3613 | } | |
3614 | switch(*ptype) { | |
3615 | case 'F': | |
3616 | /* file completion */ | |
3617 | readline_set_completion_index(mon->rs, strlen(str)); | |
3618 | file_completion(mon, str); | |
3619 | break; | |
3620 | case 'B': | |
3621 | /* block device name completion */ | |
3622 | readline_set_completion_index(mon->rs, strlen(str)); | |
3623 | while ((blk = blk_next(blk)) != NULL) { | |
3624 | name = blk_name(blk); | |
3625 | if (str[0] == '\0' || | |
3626 | !strncmp(name, str, strlen(str))) { | |
3627 | readline_add_completion(mon->rs, name); | |
3628 | } | |
3629 | } | |
3630 | break; | |
3631 | case 's': | |
3632 | case 'S': | |
3633 | if (!strcmp(cmd->name, "help|?")) { | |
3634 | monitor_find_completion_by_table(mon, cmd_table, | |
3635 | &args[1], nb_args - 1); | |
3636 | } | |
3637 | break; | |
3638 | default: | |
3639 | break; | |
3640 | } | |
3641 | } | |
3642 | } | |
3643 | ||
3644 | static void monitor_find_completion(void *opaque, | |
3645 | const char *cmdline) | |
3646 | { | |
3647 | Monitor *mon = opaque; | |
3648 | char *args[MAX_ARGS]; | |
3649 | int nb_args, len; | |
3650 | ||
3651 | /* 1. parse the cmdline */ | |
3652 | if (parse_cmdline(cmdline, &nb_args, args) < 0) { | |
3653 | return; | |
3654 | } | |
3655 | ||
3656 | /* if the line ends with a space, it means we want to complete the | |
3657 | next arg */ | |
3658 | len = strlen(cmdline); | |
3659 | if (len > 0 && qemu_isspace(cmdline[len - 1])) { | |
3660 | if (nb_args >= MAX_ARGS) { | |
3661 | goto cleanup; | |
3662 | } | |
3663 | args[nb_args++] = g_strdup(""); | |
3664 | } | |
3665 | ||
3666 | /* 2. auto complete according to args */ | |
3667 | monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args); | |
3668 | ||
3669 | cleanup: | |
3670 | free_cmdline_args(args, nb_args); | |
3671 | } | |
3672 | ||
3673 | static int monitor_can_read(void *opaque) | |
3674 | { | |
3675 | Monitor *mon = opaque; | |
3676 | ||
3677 | return (mon->suspend_cnt == 0) ? 1 : 0; | |
3678 | } | |
3679 | ||
3680 | static bool invalid_qmp_mode(const Monitor *mon, const char *cmd, | |
3681 | Error **errp) | |
3682 | { | |
3683 | bool is_cap = g_str_equal(cmd, "qmp_capabilities"); | |
3684 | ||
3685 | if (is_cap && mon->qmp.in_command_mode) { | |
3686 | error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND, | |
3687 | "Capabilities negotiation is already complete, command " | |
3688 | "'%s' ignored", cmd); | |
3689 | return true; | |
3690 | } | |
3691 | if (!is_cap && !mon->qmp.in_command_mode) { | |
3692 | error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND, | |
3693 | "Expecting capabilities negotiation with " | |
3694 | "'qmp_capabilities' before command '%s'", cmd); | |
3695 | return true; | |
3696 | } | |
3697 | return false; | |
3698 | } | |
3699 | ||
3700 | /* | |
3701 | * Input object checking rules | |
3702 | * | |
3703 | * 1. Input object must be a dict | |
3704 | * 2. The "execute" key must exist | |
3705 | * 3. The "execute" key must be a string | |
3706 | * 4. If the "arguments" key exists, it must be a dict | |
3707 | * 5. If the "id" key exists, it can be anything (ie. json-value) | |
3708 | * 6. Any argument not listed above is considered invalid | |
3709 | */ | |
3710 | static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp) | |
3711 | { | |
3712 | const QDictEntry *ent; | |
3713 | int has_exec_key = 0; | |
3714 | QDict *input_dict; | |
3715 | ||
3716 | input_dict = qobject_to_qdict(input_obj); | |
3717 | if (!input_dict) { | |
3718 | error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object"); | |
3719 | return NULL; | |
3720 | } | |
3721 | ||
3722 | ||
3723 | for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){ | |
3724 | const char *arg_name = qdict_entry_key(ent); | |
3725 | const QObject *arg_obj = qdict_entry_value(ent); | |
3726 | ||
3727 | if (!strcmp(arg_name, "execute")) { | |
3728 | if (qobject_type(arg_obj) != QTYPE_QSTRING) { | |
3729 | error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER, | |
3730 | "execute", "string"); | |
3731 | return NULL; | |
3732 | } | |
3733 | has_exec_key = 1; | |
3734 | } else if (!strcmp(arg_name, "arguments")) { | |
3735 | if (qobject_type(arg_obj) != QTYPE_QDICT) { | |
3736 | error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER, | |
3737 | "arguments", "object"); | |
3738 | return NULL; | |
3739 | } | |
3740 | } else if (!strcmp(arg_name, "id")) { | |
3741 | /* Any string is acceptable as "id", so nothing to check */ | |
3742 | } else { | |
3743 | error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name); | |
3744 | return NULL; | |
3745 | } | |
3746 | } | |
3747 | ||
3748 | if (!has_exec_key) { | |
3749 | error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute"); | |
3750 | return NULL; | |
3751 | } | |
3752 | ||
3753 | return input_dict; | |
3754 | } | |
3755 | ||
3756 | static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens) | |
3757 | { | |
3758 | QObject *req, *rsp = NULL, *id = NULL; | |
3759 | QDict *qdict = NULL; | |
3760 | const char *cmd_name; | |
3761 | Monitor *mon = cur_mon; | |
3762 | Error *err = NULL; | |
3763 | ||
3764 | req = json_parser_parse_err(tokens, NULL, &err); | |
3765 | if (!req && !err) { | |
3766 | /* json_parser_parse_err() sucks: can fail without setting @err */ | |
3767 | error_setg(&err, QERR_JSON_PARSING); | |
3768 | } | |
3769 | if (err) { | |
3770 | goto err_out; | |
3771 | } | |
3772 | ||
3773 | qdict = qmp_check_input_obj(req, &err); | |
3774 | if (!qdict) { | |
3775 | goto err_out; | |
3776 | } | |
3777 | ||
3778 | id = qdict_get(qdict, "id"); | |
3779 | qobject_incref(id); | |
3780 | qdict_del(qdict, "id"); | |
3781 | ||
3782 | cmd_name = qdict_get_str(qdict, "execute"); | |
3783 | trace_handle_qmp_command(mon, cmd_name); | |
3784 | ||
3785 | if (invalid_qmp_mode(mon, cmd_name, &err)) { | |
3786 | goto err_out; | |
3787 | } | |
3788 | ||
3789 | rsp = qmp_dispatch(req); | |
3790 | ||
3791 | err_out: | |
3792 | if (err) { | |
3793 | qdict = qdict_new(); | |
3794 | qdict_put_obj(qdict, "error", qmp_build_error_object(err)); | |
3795 | error_free(err); | |
3796 | rsp = QOBJECT(qdict); | |
3797 | } | |
3798 | ||
3799 | if (rsp) { | |
3800 | if (id) { | |
3801 | qdict_put_obj(qobject_to_qdict(rsp), "id", id); | |
3802 | id = NULL; | |
3803 | } | |
3804 | ||
3805 | monitor_json_emitter(mon, rsp); | |
3806 | } | |
3807 | ||
3808 | qobject_decref(id); | |
3809 | qobject_decref(rsp); | |
3810 | qobject_decref(req); | |
3811 | } | |
3812 | ||
3813 | static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size) | |
3814 | { | |
3815 | Monitor *old_mon = cur_mon; | |
3816 | ||
3817 | cur_mon = opaque; | |
3818 | ||
3819 | json_message_parser_feed(&cur_mon->qmp.parser, (const char *) buf, size); | |
3820 | ||
3821 | cur_mon = old_mon; | |
3822 | } | |
3823 | ||
3824 | static void monitor_read(void *opaque, const uint8_t *buf, int size) | |
3825 | { | |
3826 | Monitor *old_mon = cur_mon; | |
3827 | int i; | |
3828 | ||
3829 | cur_mon = opaque; | |
3830 | ||
3831 | if (cur_mon->rs) { | |
3832 | for (i = 0; i < size; i++) | |
3833 | readline_handle_byte(cur_mon->rs, buf[i]); | |
3834 | } else { | |
3835 | if (size == 0 || buf[size - 1] != 0) | |
3836 | monitor_printf(cur_mon, "corrupted command\n"); | |
3837 | else | |
3838 | handle_hmp_command(cur_mon, (char *)buf); | |
3839 | } | |
3840 | ||
3841 | cur_mon = old_mon; | |
3842 | } | |
3843 | ||
3844 | static void monitor_command_cb(void *opaque, const char *cmdline, | |
3845 | void *readline_opaque) | |
3846 | { | |
3847 | Monitor *mon = opaque; | |
3848 | ||
3849 | monitor_suspend(mon); | |
3850 | handle_hmp_command(mon, cmdline); | |
3851 | monitor_resume(mon); | |
3852 | } | |
3853 | ||
3854 | int monitor_suspend(Monitor *mon) | |
3855 | { | |
3856 | if (!mon->rs) | |
3857 | return -ENOTTY; | |
3858 | mon->suspend_cnt++; | |
3859 | return 0; | |
3860 | } | |
3861 | ||
3862 | void monitor_resume(Monitor *mon) | |
3863 | { | |
3864 | if (!mon->rs) | |
3865 | return; | |
3866 | if (--mon->suspend_cnt == 0) | |
3867 | readline_show_prompt(mon->rs); | |
3868 | } | |
3869 | ||
3870 | static QObject *get_qmp_greeting(void) | |
3871 | { | |
3872 | QObject *ver = NULL; | |
3873 | ||
3874 | qmp_marshal_query_version(NULL, &ver, NULL); | |
3875 | ||
3876 | return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': []}}", | |
3877 | ver); | |
3878 | } | |
3879 | ||
3880 | static void monitor_qmp_event(void *opaque, int event) | |
3881 | { | |
3882 | QObject *data; | |
3883 | Monitor *mon = opaque; | |
3884 | ||
3885 | switch (event) { | |
3886 | case CHR_EVENT_OPENED: | |
3887 | mon->qmp.in_command_mode = false; | |
3888 | data = get_qmp_greeting(); | |
3889 | monitor_json_emitter(mon, data); | |
3890 | qobject_decref(data); | |
3891 | mon_refcount++; | |
3892 | break; | |
3893 | case CHR_EVENT_CLOSED: | |
3894 | json_message_parser_destroy(&mon->qmp.parser); | |
3895 | json_message_parser_init(&mon->qmp.parser, handle_qmp_command); | |
3896 | mon_refcount--; | |
3897 | monitor_fdsets_cleanup(); | |
3898 | break; | |
3899 | } | |
3900 | } | |
3901 | ||
3902 | static void monitor_event(void *opaque, int event) | |
3903 | { | |
3904 | Monitor *mon = opaque; | |
3905 | ||
3906 | switch (event) { | |
3907 | case CHR_EVENT_MUX_IN: | |
3908 | qemu_mutex_lock(&mon->out_lock); | |
3909 | mon->mux_out = 0; | |
3910 | qemu_mutex_unlock(&mon->out_lock); | |
3911 | if (mon->reset_seen) { | |
3912 | readline_restart(mon->rs); | |
3913 | monitor_resume(mon); | |
3914 | monitor_flush(mon); | |
3915 | } else { | |
3916 | mon->suspend_cnt = 0; | |
3917 | } | |
3918 | break; | |
3919 | ||
3920 | case CHR_EVENT_MUX_OUT: | |
3921 | if (mon->reset_seen) { | |
3922 | if (mon->suspend_cnt == 0) { | |
3923 | monitor_printf(mon, "\n"); | |
3924 | } | |
3925 | monitor_flush(mon); | |
3926 | monitor_suspend(mon); | |
3927 | } else { | |
3928 | mon->suspend_cnt++; | |
3929 | } | |
3930 | qemu_mutex_lock(&mon->out_lock); | |
3931 | mon->mux_out = 1; | |
3932 | qemu_mutex_unlock(&mon->out_lock); | |
3933 | break; | |
3934 | ||
3935 | case CHR_EVENT_OPENED: | |
3936 | monitor_printf(mon, "QEMU %s monitor - type 'help' for more " | |
3937 | "information\n", QEMU_VERSION); | |
3938 | if (!mon->mux_out) { | |
3939 | readline_restart(mon->rs); | |
3940 | readline_show_prompt(mon->rs); | |
3941 | } | |
3942 | mon->reset_seen = 1; | |
3943 | mon_refcount++; | |
3944 | break; | |
3945 | ||
3946 | case CHR_EVENT_CLOSED: | |
3947 | mon_refcount--; | |
3948 | monitor_fdsets_cleanup(); | |
3949 | break; | |
3950 | } | |
3951 | } | |
3952 | ||
3953 | static int | |
3954 | compare_mon_cmd(const void *a, const void *b) | |
3955 | { | |
3956 | return strcmp(((const mon_cmd_t *)a)->name, | |
3957 | ((const mon_cmd_t *)b)->name); | |
3958 | } | |
3959 | ||
3960 | static void sortcmdlist(void) | |
3961 | { | |
3962 | int array_num; | |
3963 | int elem_size = sizeof(mon_cmd_t); | |
3964 | ||
3965 | array_num = sizeof(mon_cmds)/elem_size-1; | |
3966 | qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd); | |
3967 | ||
3968 | array_num = sizeof(info_cmds)/elem_size-1; | |
3969 | qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd); | |
3970 | } | |
3971 | ||
3972 | /* These functions just adapt the readline interface in a typesafe way. We | |
3973 | * could cast function pointers but that discards compiler checks. | |
3974 | */ | |
3975 | static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque, | |
3976 | const char *fmt, ...) | |
3977 | { | |
3978 | va_list ap; | |
3979 | va_start(ap, fmt); | |
3980 | monitor_vprintf(opaque, fmt, ap); | |
3981 | va_end(ap); | |
3982 | } | |
3983 | ||
3984 | static void monitor_readline_flush(void *opaque) | |
3985 | { | |
3986 | monitor_flush(opaque); | |
3987 | } | |
3988 | ||
3989 | /* | |
3990 | * Print to current monitor if we have one, else to stderr. | |
3991 | * TODO should return int, so callers can calculate width, but that | |
3992 | * requires surgery to monitor_vprintf(). Left for another day. | |
3993 | */ | |
3994 | void error_vprintf(const char *fmt, va_list ap) | |
3995 | { | |
3996 | if (cur_mon && !monitor_cur_is_qmp()) { | |
3997 | monitor_vprintf(cur_mon, fmt, ap); | |
3998 | } else { | |
3999 | vfprintf(stderr, fmt, ap); | |
4000 | } | |
4001 | } | |
4002 | ||
4003 | void error_vprintf_unless_qmp(const char *fmt, va_list ap) | |
4004 | { | |
4005 | if (cur_mon && !monitor_cur_is_qmp()) { | |
4006 | monitor_vprintf(cur_mon, fmt, ap); | |
4007 | } else if (!cur_mon) { | |
4008 | vfprintf(stderr, fmt, ap); | |
4009 | } | |
4010 | } | |
4011 | ||
4012 | static void __attribute__((constructor)) monitor_lock_init(void) | |
4013 | { | |
4014 | qemu_mutex_init(&monitor_lock); | |
4015 | } | |
4016 | ||
4017 | void monitor_init(Chardev *chr, int flags) | |
4018 | { | |
4019 | static int is_first_init = 1; | |
4020 | Monitor *mon; | |
4021 | ||
4022 | if (is_first_init) { | |
4023 | monitor_qapi_event_init(); | |
4024 | sortcmdlist(); | |
4025 | is_first_init = 0; | |
4026 | } | |
4027 | ||
4028 | mon = g_malloc(sizeof(*mon)); | |
4029 | monitor_data_init(mon); | |
4030 | ||
4031 | qemu_chr_fe_init(&mon->chr, chr, &error_abort); | |
4032 | mon->flags = flags; | |
4033 | if (flags & MONITOR_USE_READLINE) { | |
4034 | mon->rs = readline_init(monitor_readline_printf, | |
4035 | monitor_readline_flush, | |
4036 | mon, | |
4037 | monitor_find_completion); | |
4038 | monitor_read_command(mon, 0); | |
4039 | } | |
4040 | ||
4041 | if (monitor_is_qmp(mon)) { | |
4042 | qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read, | |
4043 | monitor_qmp_event, mon, NULL, true); | |
4044 | qemu_chr_fe_set_echo(&mon->chr, true); | |
4045 | json_message_parser_init(&mon->qmp.parser, handle_qmp_command); | |
4046 | } else { | |
4047 | qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read, | |
4048 | monitor_event, mon, NULL, true); | |
4049 | } | |
4050 | ||
4051 | qemu_mutex_lock(&monitor_lock); | |
4052 | QLIST_INSERT_HEAD(&mon_list, mon, entry); | |
4053 | qemu_mutex_unlock(&monitor_lock); | |
4054 | } | |
4055 | ||
4056 | void monitor_cleanup(void) | |
4057 | { | |
4058 | Monitor *mon, *next; | |
4059 | ||
4060 | qemu_mutex_lock(&monitor_lock); | |
4061 | QLIST_FOREACH_SAFE(mon, &mon_list, entry, next) { | |
4062 | QLIST_REMOVE(mon, entry); | |
4063 | monitor_data_destroy(mon); | |
4064 | g_free(mon); | |
4065 | } | |
4066 | qemu_mutex_unlock(&monitor_lock); | |
4067 | } | |
4068 | ||
4069 | static void bdrv_password_cb(void *opaque, const char *password, | |
4070 | void *readline_opaque) | |
4071 | { | |
4072 | Monitor *mon = opaque; | |
4073 | BlockDriverState *bs = readline_opaque; | |
4074 | int ret = 0; | |
4075 | Error *local_err = NULL; | |
4076 | ||
4077 | bdrv_add_key(bs, password, &local_err); | |
4078 | if (local_err) { | |
4079 | error_report_err(local_err); | |
4080 | ret = -EPERM; | |
4081 | } | |
4082 | if (mon->password_completion_cb) | |
4083 | mon->password_completion_cb(mon->password_opaque, ret); | |
4084 | ||
4085 | monitor_read_command(mon, 1); | |
4086 | } | |
4087 | ||
4088 | int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs, | |
4089 | BlockCompletionFunc *completion_cb, | |
4090 | void *opaque) | |
4091 | { | |
4092 | int err; | |
4093 | ||
4094 | monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs), | |
4095 | bdrv_get_encrypted_filename(bs)); | |
4096 | ||
4097 | mon->password_completion_cb = completion_cb; | |
4098 | mon->password_opaque = opaque; | |
4099 | ||
4100 | err = monitor_read_password(mon, bdrv_password_cb, bs); | |
4101 | ||
4102 | if (err && completion_cb) | |
4103 | completion_cb(opaque, err); | |
4104 | ||
4105 | return err; | |
4106 | } | |
4107 | ||
4108 | int monitor_read_block_device_key(Monitor *mon, const char *device, | |
4109 | BlockCompletionFunc *completion_cb, | |
4110 | void *opaque) | |
4111 | { | |
4112 | Error *err = NULL; | |
4113 | BlockBackend *blk; | |
4114 | ||
4115 | blk = blk_by_name(device); | |
4116 | if (!blk) { | |
4117 | monitor_printf(mon, "Device not found %s\n", device); | |
4118 | return -1; | |
4119 | } | |
4120 | if (!blk_bs(blk)) { | |
4121 | monitor_printf(mon, "Device '%s' has no medium\n", device); | |
4122 | return -1; | |
4123 | } | |
4124 | ||
4125 | bdrv_add_key(blk_bs(blk), NULL, &err); | |
4126 | if (err) { | |
4127 | error_free(err); | |
4128 | return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque); | |
4129 | } | |
4130 | ||
4131 | if (completion_cb) { | |
4132 | completion_cb(opaque, 0); | |
4133 | } | |
4134 | return 0; | |
4135 | } | |
4136 | ||
4137 | QemuOptsList qemu_mon_opts = { | |
4138 | .name = "mon", | |
4139 | .implied_opt_name = "chardev", | |
4140 | .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head), | |
4141 | .desc = { | |
4142 | { | |
4143 | .name = "mode", | |
4144 | .type = QEMU_OPT_STRING, | |
4145 | },{ | |
4146 | .name = "chardev", | |
4147 | .type = QEMU_OPT_STRING, | |
4148 | },{ | |
4149 | .name = "default", /* deprecated */ | |
4150 | .type = QEMU_OPT_BOOL, | |
4151 | },{ | |
4152 | .name = "pretty", | |
4153 | .type = QEMU_OPT_BOOL, | |
4154 | }, | |
4155 | { /* end of list */ } | |
4156 | }, | |
4157 | }; | |
4158 | ||
4159 | #ifndef TARGET_I386 | |
4160 | void qmp_rtc_reset_reinjection(Error **errp) | |
4161 | { | |
4162 | error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection"); | |
4163 | } | |
4164 | #endif | |
4165 | ||
4166 | #ifndef TARGET_S390X | |
4167 | void qmp_dump_skeys(const char *filename, Error **errp) | |
4168 | { | |
4169 | error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys"); | |
4170 | } | |
4171 | #endif | |
4172 | ||
4173 | #ifndef TARGET_ARM | |
4174 | GICCapabilityList *qmp_query_gic_capabilities(Error **errp) | |
4175 | { | |
4176 | error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities"); | |
4177 | return NULL; | |
4178 | } | |
4179 | #endif | |
4180 | ||
4181 | HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp) | |
4182 | { | |
4183 | MachineState *ms = MACHINE(qdev_get_machine()); | |
4184 | MachineClass *mc = MACHINE_GET_CLASS(ms); | |
4185 | ||
4186 | if (!mc->has_hotpluggable_cpus) { | |
4187 | error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus"); | |
4188 | return NULL; | |
4189 | } | |
4190 | ||
4191 | return machine_query_hotpluggable_cpus(ms); | |
4192 | } |