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machine: introduce MachineClass.possible_cpu_arch_ids() hook
[qemu/kevin.git] / monitor.c
blobe99ca8c91e28d3112716af2fc295f1fdddbbb96e
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 "hw/hw.h"
27 #include "monitor/qdev.h"
28 #include "hw/usb.h"
29 #include "hw/i386/pc.h"
30 #include "hw/pci/pci.h"
31 #include "sysemu/watchdog.h"
32 #include "hw/loader.h"
33 #include "exec/gdbstub.h"
34 #include "net/net.h"
35 #include "net/slirp.h"
36 #include "sysemu/char.h"
37 #include "ui/qemu-spice.h"
38 #include "sysemu/sysemu.h"
39 #include "sysemu/numa.h"
40 #include "monitor/monitor.h"
41 #include "qemu/readline.h"
42 #include "ui/console.h"
43 #include "ui/input.h"
44 #include "sysemu/blockdev.h"
45 #include "audio/audio.h"
46 #include "disas/disas.h"
47 #include "sysemu/balloon.h"
48 #include "qemu/timer.h"
49 #include "migration/migration.h"
50 #include "sysemu/kvm.h"
51 #include "qemu/acl.h"
52 #include "sysemu/tpm.h"
53 #include "qapi/qmp/qerror.h"
54 #include "qapi/qmp/qint.h"
55 #include "qapi/qmp/qfloat.h"
56 #include "qapi/qmp/qlist.h"
57 #include "qapi/qmp/qbool.h"
58 #include "qapi/qmp/qstring.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 "cpu.h"
64 #include "trace.h"
65 #include "trace/control.h"
66 #include "monitor/hmp-target.h"
67 #ifdef CONFIG_TRACE_SIMPLE
68 #include "trace/simple.h"
69 #endif
70 #include "exec/memory.h"
71 #include "qmp-commands.h"
72 #include "hmp.h"
73 #include "qemu/thread.h"
74 #include "block/qapi.h"
75 #include "qapi/qmp-event.h"
76 #include "qapi-event.h"
77 #include "qmp-introspect.h"
78 #include "sysemu/block-backend.h"
79
80 /* for hmp_info_irq/pic */
81 #if defined(TARGET_SPARC)
82 #include "hw/sparc/sun4m.h"
83 #endif
84 #include "hw/lm32/lm32_pic.h"
85
86 #if defined(TARGET_S390X)
87 #include "hw/s390x/storage-keys.h"
88 #endif
89
90 /*
91 * Supported types:
92 *
93 * 'F' filename
94 * 'B' block device name
95 * 's' string (accept optional quote)
96 * 'S' it just appends the rest of the string (accept optional quote)
97 * 'O' option string of the form NAME=VALUE,...
98 * parsed according to QemuOptsList given by its name
99 * Example: 'device:O' uses qemu_device_opts.
100 * Restriction: only lists with empty desc are supported
101 * TODO lift the restriction
102 * 'i' 32 bit integer
103 * 'l' target long (32 or 64 bit)
104 * 'M' Non-negative target long (32 or 64 bit), in user mode the
105 * value is multiplied by 2^20 (think Mebibyte)
106 * 'o' octets (aka bytes)
107 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
108 * K, k suffix, which multiplies the value by 2^60 for suffixes E
109 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
110 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
111 * 'T' double
112 * user mode accepts an optional ms, us, ns suffix,
113 * which divides the value by 1e3, 1e6, 1e9, respectively
114 * '/' optional gdb-like print format (like "/10x")
115 *
116 * '?' optional type (for all types, except '/')
117 * '.' other form of optional type (for 'i' and 'l')
118 * 'b' boolean
119 * user mode accepts "on" or "off"
120 * '-' optional parameter (eg. '-f')
121 *
122 */
123
124 typedef struct mon_cmd_t {
125 const char *name;
126 const char *args_type;
127 const char *params;
128 const char *help;
129 union {
130 void (*cmd)(Monitor *mon, const QDict *qdict);
131 void (*cmd_new)(QDict *params, QObject **ret_data, Error **errp);
132 } mhandler;
133 /* @sub_table is a list of 2nd level of commands. If it do not exist,
134 * mhandler should be used. If it exist, sub_table[?].mhandler should be
135 * used, and mhandler of 1st level plays the role of help function.
136 */
137 struct mon_cmd_t *sub_table;
138 void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
139 } mon_cmd_t;
140
141 /* file descriptors passed via SCM_RIGHTS */
142 typedef struct mon_fd_t mon_fd_t;
143 struct mon_fd_t {
144 char *name;
145 int fd;
146 QLIST_ENTRY(mon_fd_t) next;
147 };
148
149 /* file descriptor associated with a file descriptor set */
150 typedef struct MonFdsetFd MonFdsetFd;
151 struct MonFdsetFd {
152 int fd;
153 bool removed;
154 char *opaque;
155 QLIST_ENTRY(MonFdsetFd) next;
156 };
157
158 /* file descriptor set containing fds passed via SCM_RIGHTS */
159 typedef struct MonFdset MonFdset;
160 struct MonFdset {
161 int64_t id;
162 QLIST_HEAD(, MonFdsetFd) fds;
163 QLIST_HEAD(, MonFdsetFd) dup_fds;
164 QLIST_ENTRY(MonFdset) next;
165 };
166
167 typedef struct {
168 QObject *id;
169 JSONMessageParser parser;
170 /*
171 * When a client connects, we're in capabilities negotiation mode.
172 * When command qmp_capabilities succeeds, we go into command
173 * mode.
174 */
175 bool in_command_mode; /* are we in command mode? */
176 } MonitorQMP;
177
178 /*
179 * To prevent flooding clients, events can be throttled. The
180 * throttling is calculated globally, rather than per-Monitor
181 * instance.
182 */
183 typedef struct MonitorQAPIEventState {
184 QAPIEvent event; /* Throttling state for this event type and... */
185 QDict *data; /* ... data, see qapi_event_throttle_equal() */
186 QEMUTimer *timer; /* Timer for handling delayed events */
187 QDict *qdict; /* Delayed event (if any) */
188 } MonitorQAPIEventState;
189
190 typedef struct {
191 int64_t rate; /* Minimum time (in ns) between two events */
192 } MonitorQAPIEventConf;
193
194 struct Monitor {
195 CharDriverState *chr;
196 int reset_seen;
197 int flags;
198 int suspend_cnt;
199 bool skip_flush;
200
201 QemuMutex out_lock;
202 QString *outbuf;
203 guint out_watch;
204
205 /* Read under either BQL or out_lock, written with BQL+out_lock. */
206 int mux_out;
207
208 ReadLineState *rs;
209 MonitorQMP qmp;
210 CPUState *mon_cpu;
211 BlockCompletionFunc *password_completion_cb;
212 void *password_opaque;
213 mon_cmd_t *cmd_table;
214 QLIST_HEAD(,mon_fd_t) fds;
215 QLIST_ENTRY(Monitor) entry;
216 };
217
218 /* QMP checker flags */
219 #define QMP_ACCEPT_UNKNOWNS 1
220
221 /* Protects mon_list, monitor_event_state. */
222 static QemuMutex monitor_lock;
223
224 static QLIST_HEAD(mon_list, Monitor) mon_list;
225 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
226 static int mon_refcount;
227
228 static mon_cmd_t mon_cmds[];
229 static mon_cmd_t info_cmds[];
230
231 static const mon_cmd_t qmp_cmds[];
232
233 Monitor *cur_mon;
234
235 static void monitor_command_cb(void *opaque, const char *cmdline,
236 void *readline_opaque);
237
238 /**
239 * Is @mon a QMP monitor?
240 */
241 static inline bool monitor_is_qmp(const Monitor *mon)
242 {
243 return (mon->flags & MONITOR_USE_CONTROL);
244 }
245
246 /**
247 * Is the current monitor, if any, a QMP monitor?
248 */
249 bool monitor_cur_is_qmp(void)
250 {
251 return cur_mon && monitor_is_qmp(cur_mon);
252 }
253
254 void monitor_read_command(Monitor *mon, int show_prompt)
255 {
256 if (!mon->rs)
257 return;
258
259 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
260 if (show_prompt)
261 readline_show_prompt(mon->rs);
262 }
263
264 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
265 void *opaque)
266 {
267 if (mon->rs) {
268 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
269 /* prompt is printed on return from the command handler */
270 return 0;
271 } else {
272 monitor_printf(mon, "terminal does not support password prompting\n");
273 return -ENOTTY;
274 }
275 }
276
277 static void monitor_flush_locked(Monitor *mon);
278
279 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
280 void *opaque)
281 {
282 Monitor *mon = opaque;
283
284 qemu_mutex_lock(&mon->out_lock);
285 mon->out_watch = 0;
286 monitor_flush_locked(mon);
287 qemu_mutex_unlock(&mon->out_lock);
288 return FALSE;
289 }
290
291 /* Called with mon->out_lock held. */
292 static void monitor_flush_locked(Monitor *mon)
293 {
294 int rc;
295 size_t len;
296 const char *buf;
297
298 if (mon->skip_flush) {
299 return;
300 }
301
302 buf = qstring_get_str(mon->outbuf);
303 len = qstring_get_length(mon->outbuf);
304
305 if (len && !mon->mux_out) {
306 rc = qemu_chr_fe_write(mon->chr, (const uint8_t *) buf, len);
307 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
308 /* all flushed or error */
309 QDECREF(mon->outbuf);
310 mon->outbuf = qstring_new();
311 return;
312 }
313 if (rc > 0) {
314 /* partinal write */
315 QString *tmp = qstring_from_str(buf + rc);
316 QDECREF(mon->outbuf);
317 mon->outbuf = tmp;
318 }
319 if (mon->out_watch == 0) {
320 mon->out_watch = qemu_chr_fe_add_watch(mon->chr, G_IO_OUT|G_IO_HUP,
321 monitor_unblocked, mon);
322 }
323 }
324 }
325
326 void monitor_flush(Monitor *mon)
327 {
328 qemu_mutex_lock(&mon->out_lock);
329 monitor_flush_locked(mon);
330 qemu_mutex_unlock(&mon->out_lock);
331 }
332
333 /* flush at every end of line */
334 static void monitor_puts(Monitor *mon, const char *str)
335 {
336 char c;
337
338 qemu_mutex_lock(&mon->out_lock);
339 for(;;) {
340 c = *str++;
341 if (c == '\0')
342 break;
343 if (c == '\n') {
344 qstring_append_chr(mon->outbuf, '\r');
345 }
346 qstring_append_chr(mon->outbuf, c);
347 if (c == '\n') {
348 monitor_flush_locked(mon);
349 }
350 }
351 qemu_mutex_unlock(&mon->out_lock);
352 }
353
354 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
355 {
356 char *buf;
357
358 if (!mon)
359 return;
360
361 if (monitor_is_qmp(mon)) {
362 return;
363 }
364
365 buf = g_strdup_vprintf(fmt, ap);
366 monitor_puts(mon, buf);
367 g_free(buf);
368 }
369
370 void monitor_printf(Monitor *mon, const char *fmt, ...)
371 {
372 va_list ap;
373 va_start(ap, fmt);
374 monitor_vprintf(mon, fmt, ap);
375 va_end(ap);
376 }
377
378 int monitor_fprintf(FILE *stream, const char *fmt, ...)
379 {
380 va_list ap;
381 va_start(ap, fmt);
382 monitor_vprintf((Monitor *)stream, fmt, ap);
383 va_end(ap);
384 return 0;
385 }
386
387 static void monitor_json_emitter(Monitor *mon, const QObject *data)
388 {
389 QString *json;
390
391 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
392 qobject_to_json(data);
393 assert(json != NULL);
394
395 qstring_append_chr(json, '\n');
396 monitor_puts(mon, qstring_get_str(json));
397
398 QDECREF(json);
399 }
400
401 static QDict *build_qmp_error_dict(Error *err)
402 {
403 QObject *obj;
404
405 obj = qobject_from_jsonf("{ 'error': { 'class': %s, 'desc': %s } }",
406 QapiErrorClass_lookup[error_get_class(err)],
407 error_get_pretty(err));
408
409 return qobject_to_qdict(obj);
410 }
411
412 static void monitor_protocol_emitter(Monitor *mon, QObject *data,
413 Error *err)
414 {
415 QDict *qmp;
416
417 trace_monitor_protocol_emitter(mon);
418
419 if (!err) {
420 /* success response */
421 qmp = qdict_new();
422 if (data) {
423 qobject_incref(data);
424 qdict_put_obj(qmp, "return", data);
425 } else {
426 /* return an empty QDict by default */
427 qdict_put(qmp, "return", qdict_new());
428 }
429 } else {
430 /* error response */
431 qmp = build_qmp_error_dict(err);
432 }
433
434 if (mon->qmp.id) {
435 qdict_put_obj(qmp, "id", mon->qmp.id);
436 mon->qmp.id = NULL;
437 }
438
439 monitor_json_emitter(mon, QOBJECT(qmp));
440 QDECREF(qmp);
441 }
442
443
444 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
445 /* Limit guest-triggerable events to 1 per second */
446 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
447 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
448 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
449 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
450 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
451 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
452 };
453
454 GHashTable *monitor_qapi_event_state;
455
456 /*
457 * Emits the event to every monitor instance, @event is only used for trace
458 * Called with monitor_lock held.
459 */
460 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
461 {
462 Monitor *mon;
463
464 trace_monitor_protocol_event_emit(event, qdict);
465 QLIST_FOREACH(mon, &mon_list, entry) {
466 if (monitor_is_qmp(mon) && mon->qmp.in_command_mode) {
467 monitor_json_emitter(mon, QOBJECT(qdict));
468 }
469 }
470 }
471
472 static void monitor_qapi_event_handler(void *opaque);
473
474 /*
475 * Queue a new event for emission to Monitor instances,
476 * applying any rate limiting if required.
477 */
478 static void
479 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp)
480 {
481 MonitorQAPIEventConf *evconf;
482 MonitorQAPIEventState *evstate;
483
484 assert(event < QAPI_EVENT__MAX);
485 evconf = &monitor_qapi_event_conf[event];
486 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
487
488 qemu_mutex_lock(&monitor_lock);
489
490 if (!evconf->rate) {
491 /* Unthrottled event */
492 monitor_qapi_event_emit(event, qdict);
493 } else {
494 QDict *data = qobject_to_qdict(qdict_get(qdict, "data"));
495 MonitorQAPIEventState key = { .event = event, .data = data };
496
497 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
498 assert(!evstate || timer_pending(evstate->timer));
499
500 if (evstate) {
501 /*
502 * Timer is pending for (at least) evconf->rate ns after
503 * last send. Store event for sending when timer fires,
504 * replacing a prior stored event if any.
505 */
506 QDECREF(evstate->qdict);
507 evstate->qdict = qdict;
508 QINCREF(evstate->qdict);
509 } else {
510 /*
511 * Last send was (at least) evconf->rate ns ago.
512 * Send immediately, and arm the timer to call
513 * monitor_qapi_event_handler() in evconf->rate ns. Any
514 * events arriving before then will be delayed until then.
515 */
516 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
517
518 monitor_qapi_event_emit(event, qdict);
519
520 evstate = g_new(MonitorQAPIEventState, 1);
521 evstate->event = event;
522 evstate->data = data;
523 QINCREF(evstate->data);
524 evstate->qdict = NULL;
525 evstate->timer = timer_new_ns(QEMU_CLOCK_REALTIME,
526 monitor_qapi_event_handler,
527 evstate);
528 g_hash_table_add(monitor_qapi_event_state, evstate);
529 timer_mod_ns(evstate->timer, now + evconf->rate);
530 }
531 }
532
533 qemu_mutex_unlock(&monitor_lock);
534 }
535
536 /*
537 * This function runs evconf->rate ns after sending a throttled
538 * event.
539 * If another event has since been stored, send it.
540 */
541 static void monitor_qapi_event_handler(void *opaque)
542 {
543 MonitorQAPIEventState *evstate = opaque;
544 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
545
546 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
547 qemu_mutex_lock(&monitor_lock);
548
549 if (evstate->qdict) {
550 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
551
552 monitor_qapi_event_emit(evstate->event, evstate->qdict);
553 QDECREF(evstate->qdict);
554 evstate->qdict = NULL;
555 timer_mod_ns(evstate->timer, now + evconf->rate);
556 } else {
557 g_hash_table_remove(monitor_qapi_event_state, evstate);
558 QDECREF(evstate->data);
559 timer_free(evstate->timer);
560 g_free(evstate);
561 }
562
563 qemu_mutex_unlock(&monitor_lock);
564 }
565
566 static unsigned int qapi_event_throttle_hash(const void *key)
567 {
568 const MonitorQAPIEventState *evstate = key;
569 unsigned int hash = evstate->event * 255;
570
571 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
572 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
573 }
574
575 return hash;
576 }
577
578 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
579 {
580 const MonitorQAPIEventState *eva = a;
581 const MonitorQAPIEventState *evb = b;
582
583 if (eva->event != evb->event) {
584 return FALSE;
585 }
586
587 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
588 return !strcmp(qdict_get_str(eva->data, "id"),
589 qdict_get_str(evb->data, "id"));
590 }
591
592 return TRUE;
593 }
594
595 static void monitor_qapi_event_init(void)
596 {
597 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
598 qapi_event_throttle_equal);
599 qmp_event_set_func_emit(monitor_qapi_event_queue);
600 }
601
602 static void qmp_capabilities(QDict *params, QObject **ret_data, Error **errp)
603 {
604 cur_mon->qmp.in_command_mode = true;
605 }
606
607 static void handle_hmp_command(Monitor *mon, const char *cmdline);
608
609 static void monitor_data_init(Monitor *mon)
610 {
611 memset(mon, 0, sizeof(Monitor));
612 qemu_mutex_init(&mon->out_lock);
613 mon->outbuf = qstring_new();
614 /* Use *mon_cmds by default. */
615 mon->cmd_table = mon_cmds;
616 }
617
618 static void monitor_data_destroy(Monitor *mon)
619 {
620 QDECREF(mon->outbuf);
621 qemu_mutex_destroy(&mon->out_lock);
622 }
623
624 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
625 int64_t cpu_index, Error **errp)
626 {
627 char *output = NULL;
628 Monitor *old_mon, hmp;
629
630 monitor_data_init(&hmp);
631 hmp.skip_flush = true;
632
633 old_mon = cur_mon;
634 cur_mon = &hmp;
635
636 if (has_cpu_index) {
637 int ret = monitor_set_cpu(cpu_index);
638 if (ret < 0) {
639 cur_mon = old_mon;
640 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
641 "a CPU number");
642 goto out;
643 }
644 }
645
646 handle_hmp_command(&hmp, command_line);
647 cur_mon = old_mon;
648
649 qemu_mutex_lock(&hmp.out_lock);
650 if (qstring_get_length(hmp.outbuf) > 0) {
651 output = g_strdup(qstring_get_str(hmp.outbuf));
652 } else {
653 output = g_strdup("");
654 }
655 qemu_mutex_unlock(&hmp.out_lock);
656
657 out:
658 monitor_data_destroy(&hmp);
659 return output;
660 }
661
662 static int compare_cmd(const char *name, const char *list)
663 {
664 const char *p, *pstart;
665 int len;
666 len = strlen(name);
667 p = list;
668 for(;;) {
669 pstart = p;
670 p = strchr(p, '|');
671 if (!p)
672 p = pstart + strlen(pstart);
673 if ((p - pstart) == len && !memcmp(pstart, name, len))
674 return 1;
675 if (*p == '\0')
676 break;
677 p++;
678 }
679 return 0;
680 }
681
682 static int get_str(char *buf, int buf_size, const char **pp)
683 {
684 const char *p;
685 char *q;
686 int c;
687
688 q = buf;
689 p = *pp;
690 while (qemu_isspace(*p)) {
691 p++;
692 }
693 if (*p == '\0') {
694 fail:
695 *q = '\0';
696 *pp = p;
697 return -1;
698 }
699 if (*p == '\"') {
700 p++;
701 while (*p != '\0' && *p != '\"') {
702 if (*p == '\\') {
703 p++;
704 c = *p++;
705 switch (c) {
706 case 'n':
707 c = '\n';
708 break;
709 case 'r':
710 c = '\r';
711 break;
712 case '\\':
713 case '\'':
714 case '\"':
715 break;
716 default:
717 printf("unsupported escape code: '\\%c'\n", c);
718 goto fail;
719 }
720 if ((q - buf) < buf_size - 1) {
721 *q++ = c;
722 }
723 } else {
724 if ((q - buf) < buf_size - 1) {
725 *q++ = *p;
726 }
727 p++;
728 }
729 }
730 if (*p != '\"') {
731 printf("unterminated string\n");
732 goto fail;
733 }
734 p++;
735 } else {
736 while (*p != '\0' && !qemu_isspace(*p)) {
737 if ((q - buf) < buf_size - 1) {
738 *q++ = *p;
739 }
740 p++;
741 }
742 }
743 *q = '\0';
744 *pp = p;
745 return 0;
746 }
747
748 #define MAX_ARGS 16
749
750 static void free_cmdline_args(char **args, int nb_args)
751 {
752 int i;
753
754 assert(nb_args <= MAX_ARGS);
755
756 for (i = 0; i < nb_args; i++) {
757 g_free(args[i]);
758 }
759
760 }
761
762 /*
763 * Parse the command line to get valid args.
764 * @cmdline: command line to be parsed.
765 * @pnb_args: location to store the number of args, must NOT be NULL.
766 * @args: location to store the args, which should be freed by caller, must
767 * NOT be NULL.
768 *
769 * Returns 0 on success, negative on failure.
770 *
771 * NOTE: this parser is an approximate form of the real command parser. Number
772 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
773 * return with failure.
774 */
775 static int parse_cmdline(const char *cmdline,
776 int *pnb_args, char **args)
777 {
778 const char *p;
779 int nb_args, ret;
780 char buf[1024];
781
782 p = cmdline;
783 nb_args = 0;
784 for (;;) {
785 while (qemu_isspace(*p)) {
786 p++;
787 }
788 if (*p == '\0') {
789 break;
790 }
791 if (nb_args >= MAX_ARGS) {
792 goto fail;
793 }
794 ret = get_str(buf, sizeof(buf), &p);
795 if (ret < 0) {
796 goto fail;
797 }
798 args[nb_args] = g_strdup(buf);
799 nb_args++;
800 }
801 *pnb_args = nb_args;
802 return 0;
803
804 fail:
805 free_cmdline_args(args, nb_args);
806 return -1;
807 }
808
809 static void help_cmd_dump_one(Monitor *mon,
810 const mon_cmd_t *cmd,
811 char **prefix_args,
812 int prefix_args_nb)
813 {
814 int i;
815
816 for (i = 0; i < prefix_args_nb; i++) {
817 monitor_printf(mon, "%s ", prefix_args[i]);
818 }
819 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
820 }
821
822 /* @args[@arg_index] is the valid command need to find in @cmds */
823 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
824 char **args, int nb_args, int arg_index)
825 {
826 const mon_cmd_t *cmd;
827
828 /* No valid arg need to compare with, dump all in *cmds */
829 if (arg_index >= nb_args) {
830 for (cmd = cmds; cmd->name != NULL; cmd++) {
831 help_cmd_dump_one(mon, cmd, args, arg_index);
832 }
833 return;
834 }
835
836 /* Find one entry to dump */
837 for (cmd = cmds; cmd->name != NULL; cmd++) {
838 if (compare_cmd(args[arg_index], cmd->name)) {
839 if (cmd->sub_table) {
840 /* continue with next arg */
841 help_cmd_dump(mon, cmd->sub_table,
842 args, nb_args, arg_index + 1);
843 } else {
844 help_cmd_dump_one(mon, cmd, args, arg_index);
845 }
846 break;
847 }
848 }
849 }
850
851 static void help_cmd(Monitor *mon, const char *name)
852 {
853 char *args[MAX_ARGS];
854 int nb_args = 0;
855
856 /* 1. parse user input */
857 if (name) {
858 /* special case for log, directly dump and return */
859 if (!strcmp(name, "log")) {
860 const QEMULogItem *item;
861 monitor_printf(mon, "Log items (comma separated):\n");
862 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
863 for (item = qemu_log_items; item->mask != 0; item++) {
864 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
865 }
866 return;
867 }
868
869 if (parse_cmdline(name, &nb_args, args) < 0) {
870 return;
871 }
872 }
873
874 /* 2. dump the contents according to parsed args */
875 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
876
877 free_cmdline_args(args, nb_args);
878 }
879
880 static void do_help_cmd(Monitor *mon, const QDict *qdict)
881 {
882 help_cmd(mon, qdict_get_try_str(qdict, "name"));
883 }
884
885 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
886 {
887 const char *tp_name = qdict_get_str(qdict, "name");
888 bool new_state = qdict_get_bool(qdict, "option");
889 Error *local_err = NULL;
890
891 qmp_trace_event_set_state(tp_name, new_state, true, true, &local_err);
892 if (local_err) {
893 error_report_err(local_err);
894 }
895 }
896
897 #ifdef CONFIG_TRACE_SIMPLE
898 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
899 {
900 const char *op = qdict_get_try_str(qdict, "op");
901 const char *arg = qdict_get_try_str(qdict, "arg");
902
903 if (!op) {
904 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
905 } else if (!strcmp(op, "on")) {
906 st_set_trace_file_enabled(true);
907 } else if (!strcmp(op, "off")) {
908 st_set_trace_file_enabled(false);
909 } else if (!strcmp(op, "flush")) {
910 st_flush_trace_buffer();
911 } else if (!strcmp(op, "set")) {
912 if (arg) {
913 st_set_trace_file(arg);
914 }
915 } else {
916 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
917 help_cmd(mon, "trace-file");
918 }
919 }
920 #endif
921
922 static void hmp_info_help(Monitor *mon, const QDict *qdict)
923 {
924 help_cmd(mon, "info");
925 }
926
927 CommandInfoList *qmp_query_commands(Error **errp)
928 {
929 CommandInfoList *info, *cmd_list = NULL;
930 const mon_cmd_t *cmd;
931
932 for (cmd = qmp_cmds; cmd->name != NULL; cmd++) {
933 info = g_malloc0(sizeof(*info));
934 info->value = g_malloc0(sizeof(*info->value));
935 info->value->name = g_strdup(cmd->name);
936
937 info->next = cmd_list;
938 cmd_list = info;
939 }
940
941 return cmd_list;
942 }
943
944 EventInfoList *qmp_query_events(Error **errp)
945 {
946 EventInfoList *info, *ev_list = NULL;
947 QAPIEvent e;
948
949 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
950 const char *event_name = QAPIEvent_lookup[e];
951 assert(event_name != NULL);
952 info = g_malloc0(sizeof(*info));
953 info->value = g_malloc0(sizeof(*info->value));
954 info->value->name = g_strdup(event_name);
955
956 info->next = ev_list;
957 ev_list = info;
958 }
959
960 return ev_list;
961 }
962
963 /*
964 * Minor hack: generated marshalling suppressed for this command
965 * ('gen': false in the schema) so we can parse the JSON string
966 * directly into QObject instead of first parsing it with
967 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
968 * to QObject with generated output marshallers, every time. Instead,
969 * we do it in test-qmp-input-visitor.c, just to make sure
970 * qapi-introspect.py's output actually conforms to the schema.
971 */
972 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
973 Error **errp)
974 {
975 *ret_data = qobject_from_json(qmp_schema_json);
976 }
977
978 /* set the current CPU defined by the user */
979 int monitor_set_cpu(int cpu_index)
980 {
981 CPUState *cpu;
982
983 cpu = qemu_get_cpu(cpu_index);
984 if (cpu == NULL) {
985 return -1;
986 }
987 cur_mon->mon_cpu = cpu;
988 return 0;
989 }
990
991 CPUState *mon_get_cpu(void)
992 {
993 if (!cur_mon->mon_cpu) {
994 monitor_set_cpu(0);
995 }
996 cpu_synchronize_state(cur_mon->mon_cpu);
997 return cur_mon->mon_cpu;
998 }
999
1000 CPUArchState *mon_get_cpu_env(void)
1001 {
1002 return mon_get_cpu()->env_ptr;
1003 }
1004
1005 int monitor_get_cpu_index(void)
1006 {
1007 return mon_get_cpu()->cpu_index;
1008 }
1009
1010 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1011 {
1012 cpu_dump_state(mon_get_cpu(), (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1013 }
1014
1015 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1016 {
1017 dump_exec_info((FILE *)mon, monitor_fprintf);
1018 dump_drift_info((FILE *)mon, monitor_fprintf);
1019 }
1020
1021 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1022 {
1023 dump_opcount_info((FILE *)mon, monitor_fprintf);
1024 }
1025
1026 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1027 {
1028 int i;
1029 const char *str;
1030
1031 if (!mon->rs)
1032 return;
1033 i = 0;
1034 for(;;) {
1035 str = readline_get_history(mon->rs, i);
1036 if (!str)
1037 break;
1038 monitor_printf(mon, "%d: '%s'\n", i, str);
1039 i++;
1040 }
1041 }
1042
1043 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1044 {
1045 cpu_dump_statistics(mon_get_cpu(), (FILE *)mon, &monitor_fprintf, 0);
1046 }
1047
1048 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1049 {
1050 TraceEventInfoList *events = qmp_trace_event_get_state("*", NULL);
1051 TraceEventInfoList *elem;
1052
1053 for (elem = events; elem != NULL; elem = elem->next) {
1054 monitor_printf(mon, "%s : state %u\n",
1055 elem->value->name,
1056 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1057 }
1058 qapi_free_TraceEventInfoList(events);
1059 }
1060
1061 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1062 bool has_port, int64_t port,
1063 bool has_tls_port, int64_t tls_port,
1064 bool has_cert_subject, const char *cert_subject,
1065 Error **errp)
1066 {
1067 if (strcmp(protocol, "spice") == 0) {
1068 if (!qemu_using_spice(errp)) {
1069 return;
1070 }
1071
1072 if (!has_port && !has_tls_port) {
1073 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1074 return;
1075 }
1076
1077 if (qemu_spice_migrate_info(hostname,
1078 has_port ? port : -1,
1079 has_tls_port ? tls_port : -1,
1080 cert_subject)) {
1081 error_setg(errp, QERR_UNDEFINED_ERROR);
1082 return;
1083 }
1084 return;
1085 }
1086
1087 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1088 }
1089
1090 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1091 {
1092 qemu_set_log_filename(qdict_get_str(qdict, "filename"));
1093 }
1094
1095 static void hmp_log(Monitor *mon, const QDict *qdict)
1096 {
1097 int mask;
1098 const char *items = qdict_get_str(qdict, "items");
1099
1100 if (!strcmp(items, "none")) {
1101 mask = 0;
1102 } else {
1103 mask = qemu_str_to_log_mask(items);
1104 if (!mask) {
1105 help_cmd(mon, "log");
1106 return;
1107 }
1108 }
1109 qemu_set_log(mask);
1110 }
1111
1112 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1113 {
1114 const char *option = qdict_get_try_str(qdict, "option");
1115 if (!option || !strcmp(option, "on")) {
1116 singlestep = 1;
1117 } else if (!strcmp(option, "off")) {
1118 singlestep = 0;
1119 } else {
1120 monitor_printf(mon, "unexpected option %s\n", option);
1121 }
1122 }
1123
1124 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1125 {
1126 const char *device = qdict_get_try_str(qdict, "device");
1127 if (!device)
1128 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1129 if (gdbserver_start(device) < 0) {
1130 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1131 device);
1132 } else if (strcmp(device, "none") == 0) {
1133 monitor_printf(mon, "Disabled gdbserver\n");
1134 } else {
1135 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1136 device);
1137 }
1138 }
1139
1140 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1141 {
1142 const char *action = qdict_get_str(qdict, "action");
1143 if (select_watchdog_action(action) == -1) {
1144 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1145 }
1146 }
1147
1148 static void monitor_printc(Monitor *mon, int c)
1149 {
1150 monitor_printf(mon, "'");
1151 switch(c) {
1152 case '\'':
1153 monitor_printf(mon, "\\'");
1154 break;
1155 case '\\':
1156 monitor_printf(mon, "\\\\");
1157 break;
1158 case '\n':
1159 monitor_printf(mon, "\\n");
1160 break;
1161 case '\r':
1162 monitor_printf(mon, "\\r");
1163 break;
1164 default:
1165 if (c >= 32 && c <= 126) {
1166 monitor_printf(mon, "%c", c);
1167 } else {
1168 monitor_printf(mon, "\\x%02x", c);
1169 }
1170 break;
1171 }
1172 monitor_printf(mon, "'");
1173 }
1174
1175 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1176 hwaddr addr, int is_physical)
1177 {
1178 int l, line_size, i, max_digits, len;
1179 uint8_t buf[16];
1180 uint64_t v;
1181
1182 if (format == 'i') {
1183 int flags = 0;
1184 #ifdef TARGET_I386
1185 CPUArchState *env = mon_get_cpu_env();
1186 if (wsize == 2) {
1187 flags = 1;
1188 } else if (wsize == 4) {
1189 flags = 0;
1190 } else {
1191 /* as default we use the current CS size */
1192 flags = 0;
1193 if (env) {
1194 #ifdef TARGET_X86_64
1195 if ((env->efer & MSR_EFER_LMA) &&
1196 (env->segs[R_CS].flags & DESC_L_MASK))
1197 flags = 2;
1198 else
1199 #endif
1200 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1201 flags = 1;
1202 }
1203 }
1204 #endif
1205 #ifdef TARGET_PPC
1206 CPUArchState *env = mon_get_cpu_env();
1207 flags = msr_le << 16;
1208 flags |= env->bfd_mach;
1209 #endif
1210 monitor_disas(mon, mon_get_cpu(), addr, count, is_physical, flags);
1211 return;
1212 }
1213
1214 len = wsize * count;
1215 if (wsize == 1)
1216 line_size = 8;
1217 else
1218 line_size = 16;
1219 max_digits = 0;
1220
1221 switch(format) {
1222 case 'o':
1223 max_digits = (wsize * 8 + 2) / 3;
1224 break;
1225 default:
1226 case 'x':
1227 max_digits = (wsize * 8) / 4;
1228 break;
1229 case 'u':
1230 case 'd':
1231 max_digits = (wsize * 8 * 10 + 32) / 33;
1232 break;
1233 case 'c':
1234 wsize = 1;
1235 break;
1236 }
1237
1238 while (len > 0) {
1239 if (is_physical)
1240 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1241 else
1242 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1243 l = len;
1244 if (l > line_size)
1245 l = line_size;
1246 if (is_physical) {
1247 cpu_physical_memory_read(addr, buf, l);
1248 } else {
1249 if (cpu_memory_rw_debug(mon_get_cpu(), addr, buf, l, 0) < 0) {
1250 monitor_printf(mon, " Cannot access memory\n");
1251 break;
1252 }
1253 }
1254 i = 0;
1255 while (i < l) {
1256 switch(wsize) {
1257 default:
1258 case 1:
1259 v = ldub_p(buf + i);
1260 break;
1261 case 2:
1262 v = lduw_p(buf + i);
1263 break;
1264 case 4:
1265 v = (uint32_t)ldl_p(buf + i);
1266 break;
1267 case 8:
1268 v = ldq_p(buf + i);
1269 break;
1270 }
1271 monitor_printf(mon, " ");
1272 switch(format) {
1273 case 'o':
1274 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1275 break;
1276 case 'x':
1277 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1278 break;
1279 case 'u':
1280 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1281 break;
1282 case 'd':
1283 monitor_printf(mon, "%*" PRId64, max_digits, v);
1284 break;
1285 case 'c':
1286 monitor_printc(mon, v);
1287 break;
1288 }
1289 i += wsize;
1290 }
1291 monitor_printf(mon, "\n");
1292 addr += l;
1293 len -= l;
1294 }
1295 }
1296
1297 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1298 {
1299 int count = qdict_get_int(qdict, "count");
1300 int format = qdict_get_int(qdict, "format");
1301 int size = qdict_get_int(qdict, "size");
1302 target_long addr = qdict_get_int(qdict, "addr");
1303
1304 memory_dump(mon, count, format, size, addr, 0);
1305 }
1306
1307 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1308 {
1309 int count = qdict_get_int(qdict, "count");
1310 int format = qdict_get_int(qdict, "format");
1311 int size = qdict_get_int(qdict, "size");
1312 hwaddr addr = qdict_get_int(qdict, "addr");
1313
1314 memory_dump(mon, count, format, size, addr, 1);
1315 }
1316
1317 static void do_print(Monitor *mon, const QDict *qdict)
1318 {
1319 int format = qdict_get_int(qdict, "format");
1320 hwaddr val = qdict_get_int(qdict, "val");
1321
1322 switch(format) {
1323 case 'o':
1324 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1325 break;
1326 case 'x':
1327 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1328 break;
1329 case 'u':
1330 monitor_printf(mon, "%" HWADDR_PRIu, val);
1331 break;
1332 default:
1333 case 'd':
1334 monitor_printf(mon, "%" HWADDR_PRId, val);
1335 break;
1336 case 'c':
1337 monitor_printc(mon, val);
1338 break;
1339 }
1340 monitor_printf(mon, "\n");
1341 }
1342
1343 static void hmp_sum(Monitor *mon, const QDict *qdict)
1344 {
1345 uint32_t addr;
1346 uint16_t sum;
1347 uint32_t start = qdict_get_int(qdict, "start");
1348 uint32_t size = qdict_get_int(qdict, "size");
1349
1350 sum = 0;
1351 for(addr = start; addr < (start + size); addr++) {
1352 uint8_t val = address_space_ldub(&address_space_memory, addr,
1353 MEMTXATTRS_UNSPECIFIED, NULL);
1354 /* BSD sum algorithm ('sum' Unix command) */
1355 sum = (sum >> 1) | (sum << 15);
1356 sum += val;
1357 }
1358 monitor_printf(mon, "%05d\n", sum);
1359 }
1360
1361 static int mouse_button_state;
1362
1363 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1364 {
1365 int dx, dy, dz, button;
1366 const char *dx_str = qdict_get_str(qdict, "dx_str");
1367 const char *dy_str = qdict_get_str(qdict, "dy_str");
1368 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1369
1370 dx = strtol(dx_str, NULL, 0);
1371 dy = strtol(dy_str, NULL, 0);
1372 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1373 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1374
1375 if (dz_str) {
1376 dz = strtol(dz_str, NULL, 0);
1377 if (dz != 0) {
1378 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1379 qemu_input_queue_btn(NULL, button, true);
1380 qemu_input_event_sync();
1381 qemu_input_queue_btn(NULL, button, false);
1382 }
1383 }
1384 qemu_input_event_sync();
1385 }
1386
1387 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1388 {
1389 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1390 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1391 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1392 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1393 };
1394 int button_state = qdict_get_int(qdict, "button_state");
1395
1396 if (mouse_button_state == button_state) {
1397 return;
1398 }
1399 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1400 qemu_input_event_sync();
1401 mouse_button_state = button_state;
1402 }
1403
1404 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1405 {
1406 int size = qdict_get_int(qdict, "size");
1407 int addr = qdict_get_int(qdict, "addr");
1408 int has_index = qdict_haskey(qdict, "index");
1409 uint32_t val;
1410 int suffix;
1411
1412 if (has_index) {
1413 int index = qdict_get_int(qdict, "index");
1414 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1415 addr++;
1416 }
1417 addr &= 0xffff;
1418
1419 switch(size) {
1420 default:
1421 case 1:
1422 val = cpu_inb(addr);
1423 suffix = 'b';
1424 break;
1425 case 2:
1426 val = cpu_inw(addr);
1427 suffix = 'w';
1428 break;
1429 case 4:
1430 val = cpu_inl(addr);
1431 suffix = 'l';
1432 break;
1433 }
1434 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1435 suffix, addr, size * 2, val);
1436 }
1437
1438 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1439 {
1440 int size = qdict_get_int(qdict, "size");
1441 int addr = qdict_get_int(qdict, "addr");
1442 int val = qdict_get_int(qdict, "val");
1443
1444 addr &= IOPORTS_MASK;
1445
1446 switch (size) {
1447 default:
1448 case 1:
1449 cpu_outb(addr, val);
1450 break;
1451 case 2:
1452 cpu_outw(addr, val);
1453 break;
1454 case 4:
1455 cpu_outl(addr, val);
1456 break;
1457 }
1458 }
1459
1460 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1461 {
1462 Error *local_err = NULL;
1463 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1464
1465 qemu_boot_set(bootdevice, &local_err);
1466 if (local_err) {
1467 error_report_err(local_err);
1468 } else {
1469 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1470 }
1471 }
1472
1473 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1474 {
1475 mtree_info((fprintf_function)monitor_printf, mon);
1476 }
1477
1478 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1479 {
1480 int i;
1481 CPUState *cpu;
1482 uint64_t *node_mem;
1483
1484 node_mem = g_new0(uint64_t, nb_numa_nodes);
1485 query_numa_node_mem(node_mem);
1486 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1487 for (i = 0; i < nb_numa_nodes; i++) {
1488 monitor_printf(mon, "node %d cpus:", i);
1489 CPU_FOREACH(cpu) {
1490 if (cpu->numa_node == i) {
1491 monitor_printf(mon, " %d", cpu->cpu_index);
1492 }
1493 }
1494 monitor_printf(mon, "\n");
1495 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1496 node_mem[i] >> 20);
1497 }
1498 g_free(node_mem);
1499 }
1500
1501 #ifdef CONFIG_PROFILER
1502
1503 int64_t tcg_time;
1504 int64_t dev_time;
1505
1506 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1507 {
1508 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1509 dev_time, dev_time / (double)get_ticks_per_sec());
1510 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1511 tcg_time, tcg_time / (double)get_ticks_per_sec());
1512 tcg_time = 0;
1513 dev_time = 0;
1514 }
1515 #else
1516 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1517 {
1518 monitor_printf(mon, "Internal profiler not compiled\n");
1519 }
1520 #endif
1521
1522 /* Capture support */
1523 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1524
1525 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
1526 {
1527 int i;
1528 CaptureState *s;
1529
1530 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1531 monitor_printf(mon, "[%d]: ", i);
1532 s->ops.info (s->opaque);
1533 }
1534 }
1535
1536 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
1537 {
1538 int i;
1539 int n = qdict_get_int(qdict, "n");
1540 CaptureState *s;
1541
1542 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1543 if (i == n) {
1544 s->ops.destroy (s->opaque);
1545 QLIST_REMOVE (s, entries);
1546 g_free (s);
1547 return;
1548 }
1549 }
1550 }
1551
1552 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
1553 {
1554 const char *path = qdict_get_str(qdict, "path");
1555 int has_freq = qdict_haskey(qdict, "freq");
1556 int freq = qdict_get_try_int(qdict, "freq", -1);
1557 int has_bits = qdict_haskey(qdict, "bits");
1558 int bits = qdict_get_try_int(qdict, "bits", -1);
1559 int has_channels = qdict_haskey(qdict, "nchannels");
1560 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
1561 CaptureState *s;
1562
1563 s = g_malloc0 (sizeof (*s));
1564
1565 freq = has_freq ? freq : 44100;
1566 bits = has_bits ? bits : 16;
1567 nchannels = has_channels ? nchannels : 2;
1568
1569 if (wav_start_capture (s, path, freq, bits, nchannels)) {
1570 monitor_printf(mon, "Failed to add wave capture\n");
1571 g_free (s);
1572 return;
1573 }
1574 QLIST_INSERT_HEAD (&capture_head, s, entries);
1575 }
1576
1577 static qemu_acl *find_acl(Monitor *mon, const char *name)
1578 {
1579 qemu_acl *acl = qemu_acl_find(name);
1580
1581 if (!acl) {
1582 monitor_printf(mon, "acl: unknown list '%s'\n", name);
1583 }
1584 return acl;
1585 }
1586
1587 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
1588 {
1589 const char *aclname = qdict_get_str(qdict, "aclname");
1590 qemu_acl *acl = find_acl(mon, aclname);
1591 qemu_acl_entry *entry;
1592 int i = 0;
1593
1594 if (acl) {
1595 monitor_printf(mon, "policy: %s\n",
1596 acl->defaultDeny ? "deny" : "allow");
1597 QTAILQ_FOREACH(entry, &acl->entries, next) {
1598 i++;
1599 monitor_printf(mon, "%d: %s %s\n", i,
1600 entry->deny ? "deny" : "allow", entry->match);
1601 }
1602 }
1603 }
1604
1605 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
1606 {
1607 const char *aclname = qdict_get_str(qdict, "aclname");
1608 qemu_acl *acl = find_acl(mon, aclname);
1609
1610 if (acl) {
1611 qemu_acl_reset(acl);
1612 monitor_printf(mon, "acl: removed all rules\n");
1613 }
1614 }
1615
1616 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
1617 {
1618 const char *aclname = qdict_get_str(qdict, "aclname");
1619 const char *policy = qdict_get_str(qdict, "policy");
1620 qemu_acl *acl = find_acl(mon, aclname);
1621
1622 if (acl) {
1623 if (strcmp(policy, "allow") == 0) {
1624 acl->defaultDeny = 0;
1625 monitor_printf(mon, "acl: policy set to 'allow'\n");
1626 } else if (strcmp(policy, "deny") == 0) {
1627 acl->defaultDeny = 1;
1628 monitor_printf(mon, "acl: policy set to 'deny'\n");
1629 } else {
1630 monitor_printf(mon, "acl: unknown policy '%s', "
1631 "expected 'deny' or 'allow'\n", policy);
1632 }
1633 }
1634 }
1635
1636 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
1637 {
1638 const char *aclname = qdict_get_str(qdict, "aclname");
1639 const char *match = qdict_get_str(qdict, "match");
1640 const char *policy = qdict_get_str(qdict, "policy");
1641 int has_index = qdict_haskey(qdict, "index");
1642 int index = qdict_get_try_int(qdict, "index", -1);
1643 qemu_acl *acl = find_acl(mon, aclname);
1644 int deny, ret;
1645
1646 if (acl) {
1647 if (strcmp(policy, "allow") == 0) {
1648 deny = 0;
1649 } else if (strcmp(policy, "deny") == 0) {
1650 deny = 1;
1651 } else {
1652 monitor_printf(mon, "acl: unknown policy '%s', "
1653 "expected 'deny' or 'allow'\n", policy);
1654 return;
1655 }
1656 if (has_index)
1657 ret = qemu_acl_insert(acl, deny, match, index);
1658 else
1659 ret = qemu_acl_append(acl, deny, match);
1660 if (ret < 0)
1661 monitor_printf(mon, "acl: unable to add acl entry\n");
1662 else
1663 monitor_printf(mon, "acl: added rule at position %d\n", ret);
1664 }
1665 }
1666
1667 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
1668 {
1669 const char *aclname = qdict_get_str(qdict, "aclname");
1670 const char *match = qdict_get_str(qdict, "match");
1671 qemu_acl *acl = find_acl(mon, aclname);
1672 int ret;
1673
1674 if (acl) {
1675 ret = qemu_acl_remove(acl, match);
1676 if (ret < 0)
1677 monitor_printf(mon, "acl: no matching acl entry\n");
1678 else
1679 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
1680 }
1681 }
1682
1683 void qmp_getfd(const char *fdname, Error **errp)
1684 {
1685 mon_fd_t *monfd;
1686 int fd;
1687
1688 fd = qemu_chr_fe_get_msgfd(cur_mon->chr);
1689 if (fd == -1) {
1690 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1691 return;
1692 }
1693
1694 if (qemu_isdigit(fdname[0])) {
1695 close(fd);
1696 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
1697 "a name not starting with a digit");
1698 return;
1699 }
1700
1701 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1702 if (strcmp(monfd->name, fdname) != 0) {
1703 continue;
1704 }
1705
1706 close(monfd->fd);
1707 monfd->fd = fd;
1708 return;
1709 }
1710
1711 monfd = g_malloc0(sizeof(mon_fd_t));
1712 monfd->name = g_strdup(fdname);
1713 monfd->fd = fd;
1714
1715 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
1716 }
1717
1718 void qmp_closefd(const char *fdname, Error **errp)
1719 {
1720 mon_fd_t *monfd;
1721
1722 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1723 if (strcmp(monfd->name, fdname) != 0) {
1724 continue;
1725 }
1726
1727 QLIST_REMOVE(monfd, next);
1728 close(monfd->fd);
1729 g_free(monfd->name);
1730 g_free(monfd);
1731 return;
1732 }
1733
1734 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
1735 }
1736
1737 static void hmp_loadvm(Monitor *mon, const QDict *qdict)
1738 {
1739 int saved_vm_running = runstate_is_running();
1740 const char *name = qdict_get_str(qdict, "name");
1741
1742 vm_stop(RUN_STATE_RESTORE_VM);
1743
1744 if (load_vmstate(name) == 0 && saved_vm_running) {
1745 vm_start();
1746 }
1747 }
1748
1749 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
1750 {
1751 mon_fd_t *monfd;
1752
1753 QLIST_FOREACH(monfd, &mon->fds, next) {
1754 int fd;
1755
1756 if (strcmp(monfd->name, fdname) != 0) {
1757 continue;
1758 }
1759
1760 fd = monfd->fd;
1761
1762 /* caller takes ownership of fd */
1763 QLIST_REMOVE(monfd, next);
1764 g_free(monfd->name);
1765 g_free(monfd);
1766
1767 return fd;
1768 }
1769
1770 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
1771 return -1;
1772 }
1773
1774 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
1775 {
1776 MonFdsetFd *mon_fdset_fd;
1777 MonFdsetFd *mon_fdset_fd_next;
1778
1779 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
1780 if ((mon_fdset_fd->removed ||
1781 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
1782 runstate_is_running()) {
1783 close(mon_fdset_fd->fd);
1784 g_free(mon_fdset_fd->opaque);
1785 QLIST_REMOVE(mon_fdset_fd, next);
1786 g_free(mon_fdset_fd);
1787 }
1788 }
1789
1790 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
1791 QLIST_REMOVE(mon_fdset, next);
1792 g_free(mon_fdset);
1793 }
1794 }
1795
1796 static void monitor_fdsets_cleanup(void)
1797 {
1798 MonFdset *mon_fdset;
1799 MonFdset *mon_fdset_next;
1800
1801 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
1802 monitor_fdset_cleanup(mon_fdset);
1803 }
1804 }
1805
1806 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
1807 const char *opaque, Error **errp)
1808 {
1809 int fd;
1810 Monitor *mon = cur_mon;
1811 AddfdInfo *fdinfo;
1812
1813 fd = qemu_chr_fe_get_msgfd(mon->chr);
1814 if (fd == -1) {
1815 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1816 goto error;
1817 }
1818
1819 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
1820 has_opaque, opaque, errp);
1821 if (fdinfo) {
1822 return fdinfo;
1823 }
1824
1825 error:
1826 if (fd != -1) {
1827 close(fd);
1828 }
1829 return NULL;
1830 }
1831
1832 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
1833 {
1834 MonFdset *mon_fdset;
1835 MonFdsetFd *mon_fdset_fd;
1836 char fd_str[60];
1837
1838 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1839 if (mon_fdset->id != fdset_id) {
1840 continue;
1841 }
1842 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1843 if (has_fd) {
1844 if (mon_fdset_fd->fd != fd) {
1845 continue;
1846 }
1847 mon_fdset_fd->removed = true;
1848 break;
1849 } else {
1850 mon_fdset_fd->removed = true;
1851 }
1852 }
1853 if (has_fd && !mon_fdset_fd) {
1854 goto error;
1855 }
1856 monitor_fdset_cleanup(mon_fdset);
1857 return;
1858 }
1859
1860 error:
1861 if (has_fd) {
1862 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
1863 fdset_id, fd);
1864 } else {
1865 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
1866 }
1867 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
1868 }
1869
1870 FdsetInfoList *qmp_query_fdsets(Error **errp)
1871 {
1872 MonFdset *mon_fdset;
1873 MonFdsetFd *mon_fdset_fd;
1874 FdsetInfoList *fdset_list = NULL;
1875
1876 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1877 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
1878 FdsetFdInfoList *fdsetfd_list = NULL;
1879
1880 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
1881 fdset_info->value->fdset_id = mon_fdset->id;
1882
1883 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1884 FdsetFdInfoList *fdsetfd_info;
1885
1886 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
1887 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
1888 fdsetfd_info->value->fd = mon_fdset_fd->fd;
1889 if (mon_fdset_fd->opaque) {
1890 fdsetfd_info->value->has_opaque = true;
1891 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
1892 } else {
1893 fdsetfd_info->value->has_opaque = false;
1894 }
1895
1896 fdsetfd_info->next = fdsetfd_list;
1897 fdsetfd_list = fdsetfd_info;
1898 }
1899
1900 fdset_info->value->fds = fdsetfd_list;
1901
1902 fdset_info->next = fdset_list;
1903 fdset_list = fdset_info;
1904 }
1905
1906 return fdset_list;
1907 }
1908
1909 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
1910 bool has_opaque, const char *opaque,
1911 Error **errp)
1912 {
1913 MonFdset *mon_fdset = NULL;
1914 MonFdsetFd *mon_fdset_fd;
1915 AddfdInfo *fdinfo;
1916
1917 if (has_fdset_id) {
1918 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1919 /* Break if match found or match impossible due to ordering by ID */
1920 if (fdset_id <= mon_fdset->id) {
1921 if (fdset_id < mon_fdset->id) {
1922 mon_fdset = NULL;
1923 }
1924 break;
1925 }
1926 }
1927 }
1928
1929 if (mon_fdset == NULL) {
1930 int64_t fdset_id_prev = -1;
1931 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
1932
1933 if (has_fdset_id) {
1934 if (fdset_id < 0) {
1935 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
1936 "a non-negative value");
1937 return NULL;
1938 }
1939 /* Use specified fdset ID */
1940 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1941 mon_fdset_cur = mon_fdset;
1942 if (fdset_id < mon_fdset_cur->id) {
1943 break;
1944 }
1945 }
1946 } else {
1947 /* Use first available fdset ID */
1948 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1949 mon_fdset_cur = mon_fdset;
1950 if (fdset_id_prev == mon_fdset_cur->id - 1) {
1951 fdset_id_prev = mon_fdset_cur->id;
1952 continue;
1953 }
1954 break;
1955 }
1956 }
1957
1958 mon_fdset = g_malloc0(sizeof(*mon_fdset));
1959 if (has_fdset_id) {
1960 mon_fdset->id = fdset_id;
1961 } else {
1962 mon_fdset->id = fdset_id_prev + 1;
1963 }
1964
1965 /* The fdset list is ordered by fdset ID */
1966 if (!mon_fdset_cur) {
1967 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
1968 } else if (mon_fdset->id < mon_fdset_cur->id) {
1969 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
1970 } else {
1971 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
1972 }
1973 }
1974
1975 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
1976 mon_fdset_fd->fd = fd;
1977 mon_fdset_fd->removed = false;
1978 if (has_opaque) {
1979 mon_fdset_fd->opaque = g_strdup(opaque);
1980 }
1981 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
1982
1983 fdinfo = g_malloc0(sizeof(*fdinfo));
1984 fdinfo->fdset_id = mon_fdset->id;
1985 fdinfo->fd = mon_fdset_fd->fd;
1986
1987 return fdinfo;
1988 }
1989
1990 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
1991 {
1992 #ifndef _WIN32
1993 MonFdset *mon_fdset;
1994 MonFdsetFd *mon_fdset_fd;
1995 int mon_fd_flags;
1996
1997 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1998 if (mon_fdset->id != fdset_id) {
1999 continue;
2000 }
2001 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2002 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2003 if (mon_fd_flags == -1) {
2004 return -1;
2005 }
2006
2007 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2008 return mon_fdset_fd->fd;
2009 }
2010 }
2011 errno = EACCES;
2012 return -1;
2013 }
2014 #endif
2015
2016 errno = ENOENT;
2017 return -1;
2018 }
2019
2020 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2021 {
2022 MonFdset *mon_fdset;
2023 MonFdsetFd *mon_fdset_fd_dup;
2024
2025 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2026 if (mon_fdset->id != fdset_id) {
2027 continue;
2028 }
2029 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2030 if (mon_fdset_fd_dup->fd == dup_fd) {
2031 return -1;
2032 }
2033 }
2034 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2035 mon_fdset_fd_dup->fd = dup_fd;
2036 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2037 return 0;
2038 }
2039 return -1;
2040 }
2041
2042 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2043 {
2044 MonFdset *mon_fdset;
2045 MonFdsetFd *mon_fdset_fd_dup;
2046
2047 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2048 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2049 if (mon_fdset_fd_dup->fd == dup_fd) {
2050 if (remove) {
2051 QLIST_REMOVE(mon_fdset_fd_dup, next);
2052 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2053 monitor_fdset_cleanup(mon_fdset);
2054 }
2055 return -1;
2056 } else {
2057 return mon_fdset->id;
2058 }
2059 }
2060 }
2061 }
2062 return -1;
2063 }
2064
2065 int monitor_fdset_dup_fd_find(int dup_fd)
2066 {
2067 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2068 }
2069
2070 void monitor_fdset_dup_fd_remove(int dup_fd)
2071 {
2072 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2073 }
2074
2075 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2076 {
2077 int fd;
2078 Error *local_err = NULL;
2079
2080 if (!qemu_isdigit(fdname[0]) && mon) {
2081 fd = monitor_get_fd(mon, fdname, &local_err);
2082 } else {
2083 fd = qemu_parse_fd(fdname);
2084 if (fd == -1) {
2085 error_setg(&local_err, "Invalid file descriptor number '%s'",
2086 fdname);
2087 }
2088 }
2089 if (local_err) {
2090 error_propagate(errp, local_err);
2091 assert(fd == -1);
2092 } else {
2093 assert(fd != -1);
2094 }
2095
2096 return fd;
2097 }
2098
2099 /* Please update hmp-commands.hx when adding or changing commands */
2100 static mon_cmd_t info_cmds[] = {
2101 #include "hmp-commands-info.h"
2102 { NULL, NULL, },
2103 };
2104
2105 /* mon_cmds and info_cmds would be sorted at runtime */
2106 static mon_cmd_t mon_cmds[] = {
2107 #include "hmp-commands.h"
2108 { NULL, NULL, },
2109 };
2110
2111 static const mon_cmd_t qmp_cmds[] = {
2112 #include "qmp-commands-old.h"
2113 { /* NULL */ },
2114 };
2115
2116 /*******************************************************************/
2117
2118 static const char *pch;
2119 static sigjmp_buf expr_env;
2120
2121
2122 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2123 expr_error(Monitor *mon, const char *fmt, ...)
2124 {
2125 va_list ap;
2126 va_start(ap, fmt);
2127 monitor_vprintf(mon, fmt, ap);
2128 monitor_printf(mon, "\n");
2129 va_end(ap);
2130 siglongjmp(expr_env, 1);
2131 }
2132
2133 /* return 0 if OK, -1 if not found */
2134 static int get_monitor_def(target_long *pval, const char *name)
2135 {
2136 const MonitorDef *md = target_monitor_defs();
2137 void *ptr;
2138 uint64_t tmp = 0;
2139 int ret;
2140
2141 if (md == NULL) {
2142 return -1;
2143 }
2144
2145 for(; md->name != NULL; md++) {
2146 if (compare_cmd(name, md->name)) {
2147 if (md->get_value) {
2148 *pval = md->get_value(md, md->offset);
2149 } else {
2150 CPUArchState *env = mon_get_cpu_env();
2151 ptr = (uint8_t *)env + md->offset;
2152 switch(md->type) {
2153 case MD_I32:
2154 *pval = *(int32_t *)ptr;
2155 break;
2156 case MD_TLONG:
2157 *pval = *(target_long *)ptr;
2158 break;
2159 default:
2160 *pval = 0;
2161 break;
2162 }
2163 }
2164 return 0;
2165 }
2166 }
2167
2168 ret = target_get_monitor_def(mon_get_cpu(), name, &tmp);
2169 if (!ret) {
2170 *pval = (target_long) tmp;
2171 }
2172
2173 return ret;
2174 }
2175
2176 static void next(void)
2177 {
2178 if (*pch != '\0') {
2179 pch++;
2180 while (qemu_isspace(*pch))
2181 pch++;
2182 }
2183 }
2184
2185 static int64_t expr_sum(Monitor *mon);
2186
2187 static int64_t expr_unary(Monitor *mon)
2188 {
2189 int64_t n;
2190 char *p;
2191 int ret;
2192
2193 switch(*pch) {
2194 case '+':
2195 next();
2196 n = expr_unary(mon);
2197 break;
2198 case '-':
2199 next();
2200 n = -expr_unary(mon);
2201 break;
2202 case '~':
2203 next();
2204 n = ~expr_unary(mon);
2205 break;
2206 case '(':
2207 next();
2208 n = expr_sum(mon);
2209 if (*pch != ')') {
2210 expr_error(mon, "')' expected");
2211 }
2212 next();
2213 break;
2214 case '\'':
2215 pch++;
2216 if (*pch == '\0')
2217 expr_error(mon, "character constant expected");
2218 n = *pch;
2219 pch++;
2220 if (*pch != '\'')
2221 expr_error(mon, "missing terminating \' character");
2222 next();
2223 break;
2224 case '$':
2225 {
2226 char buf[128], *q;
2227 target_long reg=0;
2228
2229 pch++;
2230 q = buf;
2231 while ((*pch >= 'a' && *pch <= 'z') ||
2232 (*pch >= 'A' && *pch <= 'Z') ||
2233 (*pch >= '0' && *pch <= '9') ||
2234 *pch == '_' || *pch == '.') {
2235 if ((q - buf) < sizeof(buf) - 1)
2236 *q++ = *pch;
2237 pch++;
2238 }
2239 while (qemu_isspace(*pch))
2240 pch++;
2241 *q = 0;
2242 ret = get_monitor_def(&reg, buf);
2243 if (ret < 0)
2244 expr_error(mon, "unknown register");
2245 n = reg;
2246 }
2247 break;
2248 case '\0':
2249 expr_error(mon, "unexpected end of expression");
2250 n = 0;
2251 break;
2252 default:
2253 errno = 0;
2254 n = strtoull(pch, &p, 0);
2255 if (errno == ERANGE) {
2256 expr_error(mon, "number too large");
2257 }
2258 if (pch == p) {
2259 expr_error(mon, "invalid char '%c' in expression", *p);
2260 }
2261 pch = p;
2262 while (qemu_isspace(*pch))
2263 pch++;
2264 break;
2265 }
2266 return n;
2267 }
2268
2269
2270 static int64_t expr_prod(Monitor *mon)
2271 {
2272 int64_t val, val2;
2273 int op;
2274
2275 val = expr_unary(mon);
2276 for(;;) {
2277 op = *pch;
2278 if (op != '*' && op != '/' && op != '%')
2279 break;
2280 next();
2281 val2 = expr_unary(mon);
2282 switch(op) {
2283 default:
2284 case '*':
2285 val *= val2;
2286 break;
2287 case '/':
2288 case '%':
2289 if (val2 == 0)
2290 expr_error(mon, "division by zero");
2291 if (op == '/')
2292 val /= val2;
2293 else
2294 val %= val2;
2295 break;
2296 }
2297 }
2298 return val;
2299 }
2300
2301 static int64_t expr_logic(Monitor *mon)
2302 {
2303 int64_t val, val2;
2304 int op;
2305
2306 val = expr_prod(mon);
2307 for(;;) {
2308 op = *pch;
2309 if (op != '&' && op != '|' && op != '^')
2310 break;
2311 next();
2312 val2 = expr_prod(mon);
2313 switch(op) {
2314 default:
2315 case '&':
2316 val &= val2;
2317 break;
2318 case '|':
2319 val |= val2;
2320 break;
2321 case '^':
2322 val ^= val2;
2323 break;
2324 }
2325 }
2326 return val;
2327 }
2328
2329 static int64_t expr_sum(Monitor *mon)
2330 {
2331 int64_t val, val2;
2332 int op;
2333
2334 val = expr_logic(mon);
2335 for(;;) {
2336 op = *pch;
2337 if (op != '+' && op != '-')
2338 break;
2339 next();
2340 val2 = expr_logic(mon);
2341 if (op == '+')
2342 val += val2;
2343 else
2344 val -= val2;
2345 }
2346 return val;
2347 }
2348
2349 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2350 {
2351 pch = *pp;
2352 if (sigsetjmp(expr_env, 0)) {
2353 *pp = pch;
2354 return -1;
2355 }
2356 while (qemu_isspace(*pch))
2357 pch++;
2358 *pval = expr_sum(mon);
2359 *pp = pch;
2360 return 0;
2361 }
2362
2363 static int get_double(Monitor *mon, double *pval, const char **pp)
2364 {
2365 const char *p = *pp;
2366 char *tailp;
2367 double d;
2368
2369 d = strtod(p, &tailp);
2370 if (tailp == p) {
2371 monitor_printf(mon, "Number expected\n");
2372 return -1;
2373 }
2374 if (d != d || d - d != 0) {
2375 /* NaN or infinity */
2376 monitor_printf(mon, "Bad number\n");
2377 return -1;
2378 }
2379 *pval = d;
2380 *pp = tailp;
2381 return 0;
2382 }
2383
2384 /*
2385 * Store the command-name in cmdname, and return a pointer to
2386 * the remaining of the command string.
2387 */
2388 static const char *get_command_name(const char *cmdline,
2389 char *cmdname, size_t nlen)
2390 {
2391 size_t len;
2392 const char *p, *pstart;
2393
2394 p = cmdline;
2395 while (qemu_isspace(*p))
2396 p++;
2397 if (*p == '\0')
2398 return NULL;
2399 pstart = p;
2400 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2401 p++;
2402 len = p - pstart;
2403 if (len > nlen - 1)
2404 len = nlen - 1;
2405 memcpy(cmdname, pstart, len);
2406 cmdname[len] = '\0';
2407 return p;
2408 }
2409
2410 /**
2411 * Read key of 'type' into 'key' and return the current
2412 * 'type' pointer.
2413 */
2414 static char *key_get_info(const char *type, char **key)
2415 {
2416 size_t len;
2417 char *p, *str;
2418
2419 if (*type == ',')
2420 type++;
2421
2422 p = strchr(type, ':');
2423 if (!p) {
2424 *key = NULL;
2425 return NULL;
2426 }
2427 len = p - type;
2428
2429 str = g_malloc(len + 1);
2430 memcpy(str, type, len);
2431 str[len] = '\0';
2432
2433 *key = str;
2434 return ++p;
2435 }
2436
2437 static int default_fmt_format = 'x';
2438 static int default_fmt_size = 4;
2439
2440 static int is_valid_option(const char *c, const char *typestr)
2441 {
2442 char option[3];
2443
2444 option[0] = '-';
2445 option[1] = *c;
2446 option[2] = '\0';
2447
2448 typestr = strstr(typestr, option);
2449 return (typestr != NULL);
2450 }
2451
2452 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2453 const char *cmdname)
2454 {
2455 const mon_cmd_t *cmd;
2456
2457 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2458 if (compare_cmd(cmdname, cmd->name)) {
2459 return cmd;
2460 }
2461 }
2462
2463 return NULL;
2464 }
2465
2466 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
2467 {
2468 return search_dispatch_table(qmp_cmds, cmdname);
2469 }
2470
2471 /*
2472 * Parse command name from @cmdp according to command table @table.
2473 * If blank, return NULL.
2474 * Else, if no valid command can be found, report to @mon, and return
2475 * NULL.
2476 * Else, change @cmdp to point right behind the name, and return its
2477 * command table entry.
2478 * Do not assume the return value points into @table! It doesn't when
2479 * the command is found in a sub-command table.
2480 */
2481 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2482 const char **cmdp,
2483 mon_cmd_t *table)
2484 {
2485 const char *p;
2486 const mon_cmd_t *cmd;
2487 char cmdname[256];
2488
2489 /* extract the command name */
2490 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2491 if (!p)
2492 return NULL;
2493
2494 cmd = search_dispatch_table(table, cmdname);
2495 if (!cmd) {
2496 monitor_printf(mon, "unknown command: '%.*s'\n",
2497 (int)(p - *cmdp), *cmdp);
2498 return NULL;
2499 }
2500
2501 /* filter out following useless space */
2502 while (qemu_isspace(*p)) {
2503 p++;
2504 }
2505
2506 *cmdp = p;
2507 /* search sub command */
2508 if (cmd->sub_table != NULL && *p != '\0') {
2509 return monitor_parse_command(mon, cmdp, cmd->sub_table);
2510 }
2511
2512 return cmd;
2513 }
2514
2515 /*
2516 * Parse arguments for @cmd.
2517 * If it can't be parsed, report to @mon, and return NULL.
2518 * Else, insert command arguments into a QDict, and return it.
2519 * Note: On success, caller has to free the QDict structure.
2520 */
2521
2522 static QDict *monitor_parse_arguments(Monitor *mon,
2523 const char **endp,
2524 const mon_cmd_t *cmd)
2525 {
2526 const char *typestr;
2527 char *key;
2528 int c;
2529 const char *p = *endp;
2530 char buf[1024];
2531 QDict *qdict = qdict_new();
2532
2533 /* parse the parameters */
2534 typestr = cmd->args_type;
2535 for(;;) {
2536 typestr = key_get_info(typestr, &key);
2537 if (!typestr)
2538 break;
2539 c = *typestr;
2540 typestr++;
2541 switch(c) {
2542 case 'F':
2543 case 'B':
2544 case 's':
2545 {
2546 int ret;
2547
2548 while (qemu_isspace(*p))
2549 p++;
2550 if (*typestr == '?') {
2551 typestr++;
2552 if (*p == '\0') {
2553 /* no optional string: NULL argument */
2554 break;
2555 }
2556 }
2557 ret = get_str(buf, sizeof(buf), &p);
2558 if (ret < 0) {
2559 switch(c) {
2560 case 'F':
2561 monitor_printf(mon, "%s: filename expected\n",
2562 cmd->name);
2563 break;
2564 case 'B':
2565 monitor_printf(mon, "%s: block device name expected\n",
2566 cmd->name);
2567 break;
2568 default:
2569 monitor_printf(mon, "%s: string expected\n", cmd->name);
2570 break;
2571 }
2572 goto fail;
2573 }
2574 qdict_put(qdict, key, qstring_from_str(buf));
2575 }
2576 break;
2577 case 'O':
2578 {
2579 QemuOptsList *opts_list;
2580 QemuOpts *opts;
2581
2582 opts_list = qemu_find_opts(key);
2583 if (!opts_list || opts_list->desc->name) {
2584 goto bad_type;
2585 }
2586 while (qemu_isspace(*p)) {
2587 p++;
2588 }
2589 if (!*p)
2590 break;
2591 if (get_str(buf, sizeof(buf), &p) < 0) {
2592 goto fail;
2593 }
2594 opts = qemu_opts_parse_noisily(opts_list, buf, true);
2595 if (!opts) {
2596 goto fail;
2597 }
2598 qemu_opts_to_qdict(opts, qdict);
2599 qemu_opts_del(opts);
2600 }
2601 break;
2602 case '/':
2603 {
2604 int count, format, size;
2605
2606 while (qemu_isspace(*p))
2607 p++;
2608 if (*p == '/') {
2609 /* format found */
2610 p++;
2611 count = 1;
2612 if (qemu_isdigit(*p)) {
2613 count = 0;
2614 while (qemu_isdigit(*p)) {
2615 count = count * 10 + (*p - '0');
2616 p++;
2617 }
2618 }
2619 size = -1;
2620 format = -1;
2621 for(;;) {
2622 switch(*p) {
2623 case 'o':
2624 case 'd':
2625 case 'u':
2626 case 'x':
2627 case 'i':
2628 case 'c':
2629 format = *p++;
2630 break;
2631 case 'b':
2632 size = 1;
2633 p++;
2634 break;
2635 case 'h':
2636 size = 2;
2637 p++;
2638 break;
2639 case 'w':
2640 size = 4;
2641 p++;
2642 break;
2643 case 'g':
2644 case 'L':
2645 size = 8;
2646 p++;
2647 break;
2648 default:
2649 goto next;
2650 }
2651 }
2652 next:
2653 if (*p != '\0' && !qemu_isspace(*p)) {
2654 monitor_printf(mon, "invalid char in format: '%c'\n",
2655 *p);
2656 goto fail;
2657 }
2658 if (format < 0)
2659 format = default_fmt_format;
2660 if (format != 'i') {
2661 /* for 'i', not specifying a size gives -1 as size */
2662 if (size < 0)
2663 size = default_fmt_size;
2664 default_fmt_size = size;
2665 }
2666 default_fmt_format = format;
2667 } else {
2668 count = 1;
2669 format = default_fmt_format;
2670 if (format != 'i') {
2671 size = default_fmt_size;
2672 } else {
2673 size = -1;
2674 }
2675 }
2676 qdict_put(qdict, "count", qint_from_int(count));
2677 qdict_put(qdict, "format", qint_from_int(format));
2678 qdict_put(qdict, "size", qint_from_int(size));
2679 }
2680 break;
2681 case 'i':
2682 case 'l':
2683 case 'M':
2684 {
2685 int64_t val;
2686
2687 while (qemu_isspace(*p))
2688 p++;
2689 if (*typestr == '?' || *typestr == '.') {
2690 if (*typestr == '?') {
2691 if (*p == '\0') {
2692 typestr++;
2693 break;
2694 }
2695 } else {
2696 if (*p == '.') {
2697 p++;
2698 while (qemu_isspace(*p))
2699 p++;
2700 } else {
2701 typestr++;
2702 break;
2703 }
2704 }
2705 typestr++;
2706 }
2707 if (get_expr(mon, &val, &p))
2708 goto fail;
2709 /* Check if 'i' is greater than 32-bit */
2710 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
2711 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
2712 monitor_printf(mon, "integer is for 32-bit values\n");
2713 goto fail;
2714 } else if (c == 'M') {
2715 if (val < 0) {
2716 monitor_printf(mon, "enter a positive value\n");
2717 goto fail;
2718 }
2719 val <<= 20;
2720 }
2721 qdict_put(qdict, key, qint_from_int(val));
2722 }
2723 break;
2724 case 'o':
2725 {
2726 int64_t val;
2727 char *end;
2728
2729 while (qemu_isspace(*p)) {
2730 p++;
2731 }
2732 if (*typestr == '?') {
2733 typestr++;
2734 if (*p == '\0') {
2735 break;
2736 }
2737 }
2738 val = qemu_strtosz(p, &end);
2739 if (val < 0) {
2740 monitor_printf(mon, "invalid size\n");
2741 goto fail;
2742 }
2743 qdict_put(qdict, key, qint_from_int(val));
2744 p = end;
2745 }
2746 break;
2747 case 'T':
2748 {
2749 double val;
2750
2751 while (qemu_isspace(*p))
2752 p++;
2753 if (*typestr == '?') {
2754 typestr++;
2755 if (*p == '\0') {
2756 break;
2757 }
2758 }
2759 if (get_double(mon, &val, &p) < 0) {
2760 goto fail;
2761 }
2762 if (p[0] && p[1] == 's') {
2763 switch (*p) {
2764 case 'm':
2765 val /= 1e3; p += 2; break;
2766 case 'u':
2767 val /= 1e6; p += 2; break;
2768 case 'n':
2769 val /= 1e9; p += 2; break;
2770 }
2771 }
2772 if (*p && !qemu_isspace(*p)) {
2773 monitor_printf(mon, "Unknown unit suffix\n");
2774 goto fail;
2775 }
2776 qdict_put(qdict, key, qfloat_from_double(val));
2777 }
2778 break;
2779 case 'b':
2780 {
2781 const char *beg;
2782 bool val;
2783
2784 while (qemu_isspace(*p)) {
2785 p++;
2786 }
2787 beg = p;
2788 while (qemu_isgraph(*p)) {
2789 p++;
2790 }
2791 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
2792 val = true;
2793 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
2794 val = false;
2795 } else {
2796 monitor_printf(mon, "Expected 'on' or 'off'\n");
2797 goto fail;
2798 }
2799 qdict_put(qdict, key, qbool_from_bool(val));
2800 }
2801 break;
2802 case '-':
2803 {
2804 const char *tmp = p;
2805 int skip_key = 0;
2806 /* option */
2807
2808 c = *typestr++;
2809 if (c == '\0')
2810 goto bad_type;
2811 while (qemu_isspace(*p))
2812 p++;
2813 if (*p == '-') {
2814 p++;
2815 if(c != *p) {
2816 if(!is_valid_option(p, typestr)) {
2817
2818 monitor_printf(mon, "%s: unsupported option -%c\n",
2819 cmd->name, *p);
2820 goto fail;
2821 } else {
2822 skip_key = 1;
2823 }
2824 }
2825 if(skip_key) {
2826 p = tmp;
2827 } else {
2828 /* has option */
2829 p++;
2830 qdict_put(qdict, key, qbool_from_bool(true));
2831 }
2832 }
2833 }
2834 break;
2835 case 'S':
2836 {
2837 /* package all remaining string */
2838 int len;
2839
2840 while (qemu_isspace(*p)) {
2841 p++;
2842 }
2843 if (*typestr == '?') {
2844 typestr++;
2845 if (*p == '\0') {
2846 /* no remaining string: NULL argument */
2847 break;
2848 }
2849 }
2850 len = strlen(p);
2851 if (len <= 0) {
2852 monitor_printf(mon, "%s: string expected\n",
2853 cmd->name);
2854 goto fail;
2855 }
2856 qdict_put(qdict, key, qstring_from_str(p));
2857 p += len;
2858 }
2859 break;
2860 default:
2861 bad_type:
2862 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
2863 goto fail;
2864 }
2865 g_free(key);
2866 key = NULL;
2867 }
2868 /* check that all arguments were parsed */
2869 while (qemu_isspace(*p))
2870 p++;
2871 if (*p != '\0') {
2872 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
2873 cmd->name);
2874 goto fail;
2875 }
2876
2877 return qdict;
2878
2879 fail:
2880 QDECREF(qdict);
2881 g_free(key);
2882 return NULL;
2883 }
2884
2885 static void handle_hmp_command(Monitor *mon, const char *cmdline)
2886 {
2887 QDict *qdict;
2888 const mon_cmd_t *cmd;
2889
2890 cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table);
2891 if (!cmd) {
2892 return;
2893 }
2894
2895 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
2896 if (!qdict) {
2897 monitor_printf(mon, "Try \"help %s\" for more information\n",
2898 cmd->name);
2899 return;
2900 }
2901
2902 cmd->mhandler.cmd(mon, qdict);
2903 QDECREF(qdict);
2904 }
2905
2906 static void cmd_completion(Monitor *mon, const char *name, const char *list)
2907 {
2908 const char *p, *pstart;
2909 char cmd[128];
2910 int len;
2911
2912 p = list;
2913 for(;;) {
2914 pstart = p;
2915 p = strchr(p, '|');
2916 if (!p)
2917 p = pstart + strlen(pstart);
2918 len = p - pstart;
2919 if (len > sizeof(cmd) - 2)
2920 len = sizeof(cmd) - 2;
2921 memcpy(cmd, pstart, len);
2922 cmd[len] = '\0';
2923 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2924 readline_add_completion(mon->rs, cmd);
2925 }
2926 if (*p == '\0')
2927 break;
2928 p++;
2929 }
2930 }
2931
2932 static void file_completion(Monitor *mon, const char *input)
2933 {
2934 DIR *ffs;
2935 struct dirent *d;
2936 char path[1024];
2937 char file[1024], file_prefix[1024];
2938 int input_path_len;
2939 const char *p;
2940
2941 p = strrchr(input, '/');
2942 if (!p) {
2943 input_path_len = 0;
2944 pstrcpy(file_prefix, sizeof(file_prefix), input);
2945 pstrcpy(path, sizeof(path), ".");
2946 } else {
2947 input_path_len = p - input + 1;
2948 memcpy(path, input, input_path_len);
2949 if (input_path_len > sizeof(path) - 1)
2950 input_path_len = sizeof(path) - 1;
2951 path[input_path_len] = '\0';
2952 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
2953 }
2954
2955 ffs = opendir(path);
2956 if (!ffs)
2957 return;
2958 for(;;) {
2959 struct stat sb;
2960 d = readdir(ffs);
2961 if (!d)
2962 break;
2963
2964 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
2965 continue;
2966 }
2967
2968 if (strstart(d->d_name, file_prefix, NULL)) {
2969 memcpy(file, input, input_path_len);
2970 if (input_path_len < sizeof(file))
2971 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
2972 d->d_name);
2973 /* stat the file to find out if it's a directory.
2974 * In that case add a slash to speed up typing long paths
2975 */
2976 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
2977 pstrcat(file, sizeof(file), "/");
2978 }
2979 readline_add_completion(mon->rs, file);
2980 }
2981 }
2982 closedir(ffs);
2983 }
2984
2985 static const char *next_arg_type(const char *typestr)
2986 {
2987 const char *p = strchr(typestr, ':');
2988 return (p != NULL ? ++p : typestr);
2989 }
2990
2991 static void add_completion_option(ReadLineState *rs, const char *str,
2992 const char *option)
2993 {
2994 if (!str || !option) {
2995 return;
2996 }
2997 if (!strncmp(option, str, strlen(str))) {
2998 readline_add_completion(rs, option);
2999 }
3000 }
3001
3002 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3003 {
3004 size_t len;
3005 ChardevBackendInfoList *list, *start;
3006
3007 if (nb_args != 2) {
3008 return;
3009 }
3010 len = strlen(str);
3011 readline_set_completion_index(rs, len);
3012
3013 start = list = qmp_query_chardev_backends(NULL);
3014 while (list) {
3015 const char *chr_name = list->value->name;
3016
3017 if (!strncmp(chr_name, str, len)) {
3018 readline_add_completion(rs, chr_name);
3019 }
3020 list = list->next;
3021 }
3022 qapi_free_ChardevBackendInfoList(start);
3023 }
3024
3025 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3026 {
3027 size_t len;
3028 int i;
3029
3030 if (nb_args != 2) {
3031 return;
3032 }
3033 len = strlen(str);
3034 readline_set_completion_index(rs, len);
3035 for (i = 0; NetClientOptionsKind_lookup[i]; i++) {
3036 add_completion_option(rs, str, NetClientOptionsKind_lookup[i]);
3037 }
3038 }
3039
3040 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3041 {
3042 GSList *list, *elt;
3043 size_t len;
3044
3045 if (nb_args != 2) {
3046 return;
3047 }
3048
3049 len = strlen(str);
3050 readline_set_completion_index(rs, len);
3051 list = elt = object_class_get_list(TYPE_DEVICE, false);
3052 while (elt) {
3053 const char *name;
3054 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3055 TYPE_DEVICE);
3056 name = object_class_get_name(OBJECT_CLASS(dc));
3057
3058 if (!dc->cannot_instantiate_with_device_add_yet
3059 && !strncmp(name, str, len)) {
3060 readline_add_completion(rs, name);
3061 }
3062 elt = elt->next;
3063 }
3064 g_slist_free(list);
3065 }
3066
3067 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3068 {
3069 GSList *list, *elt;
3070 size_t len;
3071
3072 if (nb_args != 2) {
3073 return;
3074 }
3075
3076 len = strlen(str);
3077 readline_set_completion_index(rs, len);
3078 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3079 while (elt) {
3080 const char *name;
3081
3082 name = object_class_get_name(OBJECT_CLASS(elt->data));
3083 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3084 readline_add_completion(rs, name);
3085 }
3086 elt = elt->next;
3087 }
3088 g_slist_free(list);
3089 }
3090
3091 static void peripheral_device_del_completion(ReadLineState *rs,
3092 const char *str, size_t len)
3093 {
3094 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3095 GSList *list, *item;
3096
3097 list = qdev_build_hotpluggable_device_list(peripheral);
3098 if (!list) {
3099 return;
3100 }
3101
3102 for (item = list; item; item = g_slist_next(item)) {
3103 DeviceState *dev = item->data;
3104
3105 if (dev->id && !strncmp(str, dev->id, len)) {
3106 readline_add_completion(rs, dev->id);
3107 }
3108 }
3109
3110 g_slist_free(list);
3111 }
3112
3113 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3114 {
3115 size_t len;
3116 ChardevInfoList *list, *start;
3117
3118 if (nb_args != 2) {
3119 return;
3120 }
3121 len = strlen(str);
3122 readline_set_completion_index(rs, len);
3123
3124 start = list = qmp_query_chardev(NULL);
3125 while (list) {
3126 ChardevInfo *chr = list->value;
3127
3128 if (!strncmp(chr->label, str, len)) {
3129 readline_add_completion(rs, chr->label);
3130 }
3131 list = list->next;
3132 }
3133 qapi_free_ChardevInfoList(start);
3134 }
3135
3136 static void ringbuf_completion(ReadLineState *rs, const char *str)
3137 {
3138 size_t len;
3139 ChardevInfoList *list, *start;
3140
3141 len = strlen(str);
3142 readline_set_completion_index(rs, len);
3143
3144 start = list = qmp_query_chardev(NULL);
3145 while (list) {
3146 ChardevInfo *chr_info = list->value;
3147
3148 if (!strncmp(chr_info->label, str, len)) {
3149 CharDriverState *chr = qemu_chr_find(chr_info->label);
3150 if (chr && chr_is_ringbuf(chr)) {
3151 readline_add_completion(rs, chr_info->label);
3152 }
3153 }
3154 list = list->next;
3155 }
3156 qapi_free_ChardevInfoList(start);
3157 }
3158
3159 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3160 {
3161 if (nb_args != 2) {
3162 return;
3163 }
3164 ringbuf_completion(rs, str);
3165 }
3166
3167 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3168 {
3169 size_t len;
3170
3171 if (nb_args != 2) {
3172 return;
3173 }
3174
3175 len = strlen(str);
3176 readline_set_completion_index(rs, len);
3177 peripheral_device_del_completion(rs, str, len);
3178 }
3179
3180 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3181 {
3182 ObjectPropertyInfoList *list, *start;
3183 size_t len;
3184
3185 if (nb_args != 2) {
3186 return;
3187 }
3188 len = strlen(str);
3189 readline_set_completion_index(rs, len);
3190
3191 start = list = qmp_qom_list("/objects", NULL);
3192 while (list) {
3193 ObjectPropertyInfo *info = list->value;
3194
3195 if (!strncmp(info->type, "child<", 5)
3196 && !strncmp(info->name, str, len)) {
3197 readline_add_completion(rs, info->name);
3198 }
3199 list = list->next;
3200 }
3201 qapi_free_ObjectPropertyInfoList(start);
3202 }
3203
3204 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3205 {
3206 int i;
3207 char *sep;
3208 size_t len;
3209
3210 if (nb_args != 2) {
3211 return;
3212 }
3213 sep = strrchr(str, '-');
3214 if (sep) {
3215 str = sep + 1;
3216 }
3217 len = strlen(str);
3218 readline_set_completion_index(rs, len);
3219 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3220 if (!strncmp(str, QKeyCode_lookup[i], len)) {
3221 readline_add_completion(rs, QKeyCode_lookup[i]);
3222 }
3223 }
3224 }
3225
3226 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3227 {
3228 size_t len;
3229
3230 len = strlen(str);
3231 readline_set_completion_index(rs, len);
3232 if (nb_args == 2) {
3233 NetClientState *ncs[MAX_QUEUE_NUM];
3234 int count, i;
3235 count = qemu_find_net_clients_except(NULL, ncs,
3236 NET_CLIENT_OPTIONS_KIND_NONE,
3237 MAX_QUEUE_NUM);
3238 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3239 const char *name = ncs[i]->name;
3240 if (!strncmp(str, name, len)) {
3241 readline_add_completion(rs, name);
3242 }
3243 }
3244 } else if (nb_args == 3) {
3245 add_completion_option(rs, str, "on");
3246 add_completion_option(rs, str, "off");
3247 }
3248 }
3249
3250 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3251 {
3252 int len, count, i;
3253 NetClientState *ncs[MAX_QUEUE_NUM];
3254
3255 if (nb_args != 2) {
3256 return;
3257 }
3258
3259 len = strlen(str);
3260 readline_set_completion_index(rs, len);
3261 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_OPTIONS_KIND_NIC,
3262 MAX_QUEUE_NUM);
3263 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3264 QemuOpts *opts;
3265 const char *name = ncs[i]->name;
3266 if (strncmp(str, name, len)) {
3267 continue;
3268 }
3269 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3270 if (opts) {
3271 readline_add_completion(rs, name);
3272 }
3273 }
3274 }
3275
3276 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3277 {
3278 size_t len;
3279
3280 len = strlen(str);
3281 readline_set_completion_index(rs, len);
3282 if (nb_args == 2) {
3283 TraceEventID id;
3284 for (id = 0; id < trace_event_count(); id++) {
3285 const char *event_name = trace_event_get_name(trace_event_id(id));
3286 if (!strncmp(str, event_name, len)) {
3287 readline_add_completion(rs, event_name);
3288 }
3289 }
3290 } else if (nb_args == 3) {
3291 add_completion_option(rs, str, "on");
3292 add_completion_option(rs, str, "off");
3293 }
3294 }
3295
3296 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3297 {
3298 int i;
3299
3300 if (nb_args != 2) {
3301 return;
3302 }
3303 readline_set_completion_index(rs, strlen(str));
3304 for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
3305 add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
3306 }
3307 }
3308
3309 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3310 const char *str)
3311 {
3312 size_t len;
3313
3314 len = strlen(str);
3315 readline_set_completion_index(rs, len);
3316 if (nb_args == 2) {
3317 int i;
3318 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3319 const char *name = MigrationCapability_lookup[i];
3320 if (!strncmp(str, name, len)) {
3321 readline_add_completion(rs, name);
3322 }
3323 }
3324 } else if (nb_args == 3) {
3325 add_completion_option(rs, str, "on");
3326 add_completion_option(rs, str, "off");
3327 }
3328 }
3329
3330 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3331 const char *str)
3332 {
3333 size_t len;
3334
3335 len = strlen(str);
3336 readline_set_completion_index(rs, len);
3337 if (nb_args == 2) {
3338 int i;
3339 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3340 const char *name = MigrationParameter_lookup[i];
3341 if (!strncmp(str, name, len)) {
3342 readline_add_completion(rs, name);
3343 }
3344 }
3345 }
3346 }
3347
3348 void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
3349 {
3350 int i;
3351 size_t len;
3352 if (nb_args != 2) {
3353 return;
3354 }
3355 len = strlen(str);
3356 readline_set_completion_index(rs, len);
3357 for (i = 0; host_net_devices[i]; i++) {
3358 if (!strncmp(host_net_devices[i], str, len)) {
3359 readline_add_completion(rs, host_net_devices[i]);
3360 }
3361 }
3362 }
3363
3364 void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3365 {
3366 NetClientState *ncs[MAX_QUEUE_NUM];
3367 int count, i, len;
3368
3369 len = strlen(str);
3370 readline_set_completion_index(rs, len);
3371 if (nb_args == 2) {
3372 count = qemu_find_net_clients_except(NULL, ncs,
3373 NET_CLIENT_OPTIONS_KIND_NONE,
3374 MAX_QUEUE_NUM);
3375 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3376 int id;
3377 char name[16];
3378
3379 if (net_hub_id_for_client(ncs[i], &id)) {
3380 continue;
3381 }
3382 snprintf(name, sizeof(name), "%d", id);
3383 if (!strncmp(str, name, len)) {
3384 readline_add_completion(rs, name);
3385 }
3386 }
3387 return;
3388 } else if (nb_args == 3) {
3389 count = qemu_find_net_clients_except(NULL, ncs,
3390 NET_CLIENT_OPTIONS_KIND_NIC,
3391 MAX_QUEUE_NUM);
3392 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3393 int id;
3394 const char *name;
3395
3396 if (ncs[i]->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT ||
3397 net_hub_id_for_client(ncs[i], &id)) {
3398 continue;
3399 }
3400 name = ncs[i]->name;
3401 if (!strncmp(str, name, len)) {
3402 readline_add_completion(rs, name);
3403 }
3404 }
3405 return;
3406 }
3407 }
3408
3409 static void vm_completion(ReadLineState *rs, const char *str)
3410 {
3411 size_t len;
3412 BlockDriverState *bs = NULL;
3413
3414 len = strlen(str);
3415 readline_set_completion_index(rs, len);
3416 while ((bs = bdrv_next(bs))) {
3417 SnapshotInfoList *snapshots, *snapshot;
3418 AioContext *ctx = bdrv_get_aio_context(bs);
3419 bool ok = false;
3420
3421 aio_context_acquire(ctx);
3422 if (bdrv_can_snapshot(bs)) {
3423 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3424 }
3425 aio_context_release(ctx);
3426 if (!ok) {
3427 continue;
3428 }
3429
3430 snapshot = snapshots;
3431 while (snapshot) {
3432 char *completion = snapshot->value->name;
3433 if (!strncmp(str, completion, len)) {
3434 readline_add_completion(rs, completion);
3435 }
3436 completion = snapshot->value->id;
3437 if (!strncmp(str, completion, len)) {
3438 readline_add_completion(rs, completion);
3439 }
3440 snapshot = snapshot->next;
3441 }
3442 qapi_free_SnapshotInfoList(snapshots);
3443 }
3444
3445 }
3446
3447 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3448 {
3449 if (nb_args == 2) {
3450 vm_completion(rs, str);
3451 }
3452 }
3453
3454 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3455 {
3456 if (nb_args == 2) {
3457 vm_completion(rs, str);
3458 }
3459 }
3460
3461 static void monitor_find_completion_by_table(Monitor *mon,
3462 const mon_cmd_t *cmd_table,
3463 char **args,
3464 int nb_args)
3465 {
3466 const char *cmdname;
3467 int i;
3468 const char *ptype, *str, *name;
3469 const mon_cmd_t *cmd;
3470 BlockDriverState *bs;
3471
3472 if (nb_args <= 1) {
3473 /* command completion */
3474 if (nb_args == 0)
3475 cmdname = "";
3476 else
3477 cmdname = args[0];
3478 readline_set_completion_index(mon->rs, strlen(cmdname));
3479 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3480 cmd_completion(mon, cmdname, cmd->name);
3481 }
3482 } else {
3483 /* find the command */
3484 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3485 if (compare_cmd(args[0], cmd->name)) {
3486 break;
3487 }
3488 }
3489 if (!cmd->name) {
3490 return;
3491 }
3492
3493 if (cmd->sub_table) {
3494 /* do the job again */
3495 monitor_find_completion_by_table(mon, cmd->sub_table,
3496 &args[1], nb_args - 1);
3497 return;
3498 }
3499 if (cmd->command_completion) {
3500 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3501 return;
3502 }
3503
3504 ptype = next_arg_type(cmd->args_type);
3505 for(i = 0; i < nb_args - 2; i++) {
3506 if (*ptype != '\0') {
3507 ptype = next_arg_type(ptype);
3508 while (*ptype == '?')
3509 ptype = next_arg_type(ptype);
3510 }
3511 }
3512 str = args[nb_args - 1];
3513 while (*ptype == '-' && ptype[1] != '\0') {
3514 ptype = next_arg_type(ptype);
3515 }
3516 switch(*ptype) {
3517 case 'F':
3518 /* file completion */
3519 readline_set_completion_index(mon->rs, strlen(str));
3520 file_completion(mon, str);
3521 break;
3522 case 'B':
3523 /* block device name completion */
3524 readline_set_completion_index(mon->rs, strlen(str));
3525 for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
3526 name = bdrv_get_device_name(bs);
3527 if (str[0] == '\0' ||
3528 !strncmp(name, str, strlen(str))) {
3529 readline_add_completion(mon->rs, name);
3530 }
3531 }
3532 break;
3533 case 's':
3534 case 'S':
3535 if (!strcmp(cmd->name, "help|?")) {
3536 monitor_find_completion_by_table(mon, cmd_table,
3537 &args[1], nb_args - 1);
3538 }
3539 break;
3540 default:
3541 break;
3542 }
3543 }
3544 }
3545
3546 static void monitor_find_completion(void *opaque,
3547 const char *cmdline)
3548 {
3549 Monitor *mon = opaque;
3550 char *args[MAX_ARGS];
3551 int nb_args, len;
3552
3553 /* 1. parse the cmdline */
3554 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
3555 return;
3556 }
3557
3558 /* if the line ends with a space, it means we want to complete the
3559 next arg */
3560 len = strlen(cmdline);
3561 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3562 if (nb_args >= MAX_ARGS) {
3563 goto cleanup;
3564 }
3565 args[nb_args++] = g_strdup("");
3566 }
3567
3568 /* 2. auto complete according to args */
3569 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
3570
3571 cleanup:
3572 free_cmdline_args(args, nb_args);
3573 }
3574
3575 static int monitor_can_read(void *opaque)
3576 {
3577 Monitor *mon = opaque;
3578
3579 return (mon->suspend_cnt == 0) ? 1 : 0;
3580 }
3581
3582 static bool invalid_qmp_mode(const Monitor *mon, const mon_cmd_t *cmd,
3583 Error **errp)
3584 {
3585 bool is_cap = cmd->mhandler.cmd_new == qmp_capabilities;
3586
3587 if (is_cap && mon->qmp.in_command_mode) {
3588 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3589 "Capabilities negotiation is already complete, command "
3590 "'%s' ignored", cmd->name);
3591 return true;
3592 }
3593 if (!is_cap && !mon->qmp.in_command_mode) {
3594 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3595 "Expecting capabilities negotiation with "
3596 "'qmp_capabilities' before command '%s'", cmd->name);
3597 return true;
3598 }
3599 return false;
3600 }
3601
3602 /*
3603 * Argument validation rules:
3604 *
3605 * 1. The argument must exist in cmd_args qdict
3606 * 2. The argument type must be the expected one
3607 *
3608 * Special case: If the argument doesn't exist in cmd_args and
3609 * the QMP_ACCEPT_UNKNOWNS flag is set, then the
3610 * checking is skipped for it.
3611 */
3612 static void check_client_args_type(const QDict *client_args,
3613 const QDict *cmd_args, int flags,
3614 Error **errp)
3615 {
3616 const QDictEntry *ent;
3617
3618 for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
3619 QObject *obj;
3620 QString *arg_type;
3621 const QObject *client_arg = qdict_entry_value(ent);
3622 const char *client_arg_name = qdict_entry_key(ent);
3623
3624 obj = qdict_get(cmd_args, client_arg_name);
3625 if (!obj) {
3626 if (flags & QMP_ACCEPT_UNKNOWNS) {
3627 /* handler accepts unknowns */
3628 continue;
3629 }
3630 /* client arg doesn't exist */
3631 error_setg(errp, QERR_INVALID_PARAMETER, client_arg_name);
3632 return;
3633 }
3634
3635 arg_type = qobject_to_qstring(obj);
3636 assert(arg_type != NULL);
3637
3638 /* check if argument's type is correct */
3639 switch (qstring_get_str(arg_type)[0]) {
3640 case 'F':
3641 case 'B':
3642 case 's':
3643 if (qobject_type(client_arg) != QTYPE_QSTRING) {
3644 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3645 client_arg_name, "string");
3646 return;
3647 }
3648 break;
3649 case 'i':
3650 case 'l':
3651 case 'M':
3652 case 'o':
3653 if (qobject_type(client_arg) != QTYPE_QINT) {
3654 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3655 client_arg_name, "int");
3656 return;
3657 }
3658 break;
3659 case 'T':
3660 if (qobject_type(client_arg) != QTYPE_QINT &&
3661 qobject_type(client_arg) != QTYPE_QFLOAT) {
3662 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3663 client_arg_name, "number");
3664 return;
3665 }
3666 break;
3667 case 'b':
3668 case '-':
3669 if (qobject_type(client_arg) != QTYPE_QBOOL) {
3670 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3671 client_arg_name, "bool");
3672 return;
3673 }
3674 break;
3675 case 'O':
3676 assert(flags & QMP_ACCEPT_UNKNOWNS);
3677 break;
3678 case 'q':
3679 /* Any QObject can be passed. */
3680 break;
3681 case '/':
3682 case '.':
3683 /*
3684 * These types are not supported by QMP and thus are not
3685 * handled here. Fall through.
3686 */
3687 default:
3688 abort();
3689 }
3690 }
3691 }
3692
3693 /*
3694 * - Check if the client has passed all mandatory args
3695 * - Set special flags for argument validation
3696 */
3697 static void check_mandatory_args(const QDict *cmd_args,
3698 const QDict *client_args, int *flags,
3699 Error **errp)
3700 {
3701 const QDictEntry *ent;
3702
3703 for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
3704 const char *cmd_arg_name = qdict_entry_key(ent);
3705 QString *type = qobject_to_qstring(qdict_entry_value(ent));
3706 assert(type != NULL);
3707
3708 if (qstring_get_str(type)[0] == 'O') {
3709 assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
3710 *flags |= QMP_ACCEPT_UNKNOWNS;
3711 } else if (qstring_get_str(type)[0] != '-' &&
3712 qstring_get_str(type)[1] != '?' &&
3713 !qdict_haskey(client_args, cmd_arg_name)) {
3714 error_setg(errp, QERR_MISSING_PARAMETER, cmd_arg_name);
3715 return;
3716 }
3717 }
3718 }
3719
3720 static QDict *qdict_from_args_type(const char *args_type)
3721 {
3722 int i;
3723 QDict *qdict;
3724 QString *key, *type, *cur_qs;
3725
3726 assert(args_type != NULL);
3727
3728 qdict = qdict_new();
3729
3730 if (args_type == NULL || args_type[0] == '\0') {
3731 /* no args, empty qdict */
3732 goto out;
3733 }
3734
3735 key = qstring_new();
3736 type = qstring_new();
3737
3738 cur_qs = key;
3739
3740 for (i = 0;; i++) {
3741 switch (args_type[i]) {
3742 case ',':
3743 case '\0':
3744 qdict_put(qdict, qstring_get_str(key), type);
3745 QDECREF(key);
3746 if (args_type[i] == '\0') {
3747 goto out;
3748 }
3749 type = qstring_new(); /* qdict has ref */
3750 cur_qs = key = qstring_new();
3751 break;
3752 case ':':
3753 cur_qs = type;
3754 break;
3755 default:
3756 qstring_append_chr(cur_qs, args_type[i]);
3757 break;
3758 }
3759 }
3760
3761 out:
3762 return qdict;
3763 }
3764
3765 /*
3766 * Client argument checking rules:
3767 *
3768 * 1. Client must provide all mandatory arguments
3769 * 2. Each argument provided by the client must be expected
3770 * 3. Each argument provided by the client must have the type expected
3771 * by the command
3772 */
3773 static void qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args,
3774 Error **errp)
3775 {
3776 Error *err = NULL;
3777 int flags;
3778 QDict *cmd_args;
3779
3780 cmd_args = qdict_from_args_type(cmd->args_type);
3781
3782 flags = 0;
3783 check_mandatory_args(cmd_args, client_args, &flags, &err);
3784 if (err) {
3785 goto out;
3786 }
3787
3788 check_client_args_type(client_args, cmd_args, flags, &err);
3789
3790 out:
3791 error_propagate(errp, err);
3792 QDECREF(cmd_args);
3793 }
3794
3795 /*
3796 * Input object checking rules
3797 *
3798 * 1. Input object must be a dict
3799 * 2. The "execute" key must exist
3800 * 3. The "execute" key must be a string
3801 * 4. If the "arguments" key exists, it must be a dict
3802 * 5. If the "id" key exists, it can be anything (ie. json-value)
3803 * 6. Any argument not listed above is considered invalid
3804 */
3805 static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp)
3806 {
3807 const QDictEntry *ent;
3808 int has_exec_key = 0;
3809 QDict *input_dict;
3810
3811 if (qobject_type(input_obj) != QTYPE_QDICT) {
3812 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object");
3813 return NULL;
3814 }
3815
3816 input_dict = qobject_to_qdict(input_obj);
3817
3818 for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
3819 const char *arg_name = qdict_entry_key(ent);
3820 const QObject *arg_obj = qdict_entry_value(ent);
3821
3822 if (!strcmp(arg_name, "execute")) {
3823 if (qobject_type(arg_obj) != QTYPE_QSTRING) {
3824 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3825 "execute", "string");
3826 return NULL;
3827 }
3828 has_exec_key = 1;
3829 } else if (!strcmp(arg_name, "arguments")) {
3830 if (qobject_type(arg_obj) != QTYPE_QDICT) {
3831 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3832 "arguments", "object");
3833 return NULL;
3834 }
3835 } else if (!strcmp(arg_name, "id")) {
3836 /* Any string is acceptable as "id", so nothing to check */
3837 } else {
3838 error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name);
3839 return NULL;
3840 }
3841 }
3842
3843 if (!has_exec_key) {
3844 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute");
3845 return NULL;
3846 }
3847
3848 return input_dict;
3849 }
3850
3851 static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
3852 {
3853 Error *local_err = NULL;
3854 QObject *obj, *data;
3855 QDict *input, *args;
3856 const mon_cmd_t *cmd;
3857 const char *cmd_name;
3858 Monitor *mon = cur_mon;
3859
3860 args = input = NULL;
3861 data = NULL;
3862
3863 obj = json_parser_parse(tokens, NULL);
3864 if (!obj) {
3865 // FIXME: should be triggered in json_parser_parse()
3866 error_setg(&local_err, QERR_JSON_PARSING);
3867 goto err_out;
3868 }
3869
3870 input = qmp_check_input_obj(obj, &local_err);
3871 if (!input) {
3872 qobject_decref(obj);
3873 goto err_out;
3874 }
3875
3876 mon->qmp.id = qdict_get(input, "id");
3877 qobject_incref(mon->qmp.id);
3878
3879 cmd_name = qdict_get_str(input, "execute");
3880 trace_handle_qmp_command(mon, cmd_name);
3881 cmd = qmp_find_cmd(cmd_name);
3882 if (!cmd) {
3883 error_set(&local_err, ERROR_CLASS_COMMAND_NOT_FOUND,
3884 "The command %s has not been found", cmd_name);
3885 goto err_out;
3886 }
3887 if (invalid_qmp_mode(mon, cmd, &local_err)) {
3888 goto err_out;
3889 }
3890
3891 obj = qdict_get(input, "arguments");
3892 if (!obj) {
3893 args = qdict_new();
3894 } else {
3895 args = qobject_to_qdict(obj);
3896 QINCREF(args);
3897 }
3898
3899 qmp_check_client_args(cmd, args, &local_err);
3900 if (local_err) {
3901 goto err_out;
3902 }
3903
3904 cmd->mhandler.cmd_new(args, &data, &local_err);
3905
3906 err_out:
3907 monitor_protocol_emitter(mon, data, local_err);
3908 qobject_decref(data);
3909 error_free(local_err);
3910 QDECREF(input);
3911 QDECREF(args);
3912 }
3913
3914 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
3915 {
3916 Monitor *old_mon = cur_mon;
3917
3918 cur_mon = opaque;
3919
3920 json_message_parser_feed(&cur_mon->qmp.parser, (const char *) buf, size);
3921
3922 cur_mon = old_mon;
3923 }
3924
3925 static void monitor_read(void *opaque, const uint8_t *buf, int size)
3926 {
3927 Monitor *old_mon = cur_mon;
3928 int i;
3929
3930 cur_mon = opaque;
3931
3932 if (cur_mon->rs) {
3933 for (i = 0; i < size; i++)
3934 readline_handle_byte(cur_mon->rs, buf[i]);
3935 } else {
3936 if (size == 0 || buf[size - 1] != 0)
3937 monitor_printf(cur_mon, "corrupted command\n");
3938 else
3939 handle_hmp_command(cur_mon, (char *)buf);
3940 }
3941
3942 cur_mon = old_mon;
3943 }
3944
3945 static void monitor_command_cb(void *opaque, const char *cmdline,
3946 void *readline_opaque)
3947 {
3948 Monitor *mon = opaque;
3949
3950 monitor_suspend(mon);
3951 handle_hmp_command(mon, cmdline);
3952 monitor_resume(mon);
3953 }
3954
3955 int monitor_suspend(Monitor *mon)
3956 {
3957 if (!mon->rs)
3958 return -ENOTTY;
3959 mon->suspend_cnt++;
3960 return 0;
3961 }
3962
3963 void monitor_resume(Monitor *mon)
3964 {
3965 if (!mon->rs)
3966 return;
3967 if (--mon->suspend_cnt == 0)
3968 readline_show_prompt(mon->rs);
3969 }
3970
3971 static QObject *get_qmp_greeting(void)
3972 {
3973 QObject *ver = NULL;
3974
3975 qmp_marshal_query_version(NULL, &ver, NULL);
3976 return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
3977 }
3978
3979 static void monitor_qmp_event(void *opaque, int event)
3980 {
3981 QObject *data;
3982 Monitor *mon = opaque;
3983
3984 switch (event) {
3985 case CHR_EVENT_OPENED:
3986 mon->qmp.in_command_mode = false;
3987 data = get_qmp_greeting();
3988 monitor_json_emitter(mon, data);
3989 qobject_decref(data);
3990 mon_refcount++;
3991 break;
3992 case CHR_EVENT_CLOSED:
3993 json_message_parser_destroy(&mon->qmp.parser);
3994 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
3995 mon_refcount--;
3996 monitor_fdsets_cleanup();
3997 break;
3998 }
3999 }
4000
4001 static void monitor_event(void *opaque, int event)
4002 {
4003 Monitor *mon = opaque;
4004
4005 switch (event) {
4006 case CHR_EVENT_MUX_IN:
4007 qemu_mutex_lock(&mon->out_lock);
4008 mon->mux_out = 0;
4009 qemu_mutex_unlock(&mon->out_lock);
4010 if (mon->reset_seen) {
4011 readline_restart(mon->rs);
4012 monitor_resume(mon);
4013 monitor_flush(mon);
4014 } else {
4015 mon->suspend_cnt = 0;
4016 }
4017 break;
4018
4019 case CHR_EVENT_MUX_OUT:
4020 if (mon->reset_seen) {
4021 if (mon->suspend_cnt == 0) {
4022 monitor_printf(mon, "\n");
4023 }
4024 monitor_flush(mon);
4025 monitor_suspend(mon);
4026 } else {
4027 mon->suspend_cnt++;
4028 }
4029 qemu_mutex_lock(&mon->out_lock);
4030 mon->mux_out = 1;
4031 qemu_mutex_unlock(&mon->out_lock);
4032 break;
4033
4034 case CHR_EVENT_OPENED:
4035 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4036 "information\n", QEMU_VERSION);
4037 if (!mon->mux_out) {
4038 readline_restart(mon->rs);
4039 readline_show_prompt(mon->rs);
4040 }
4041 mon->reset_seen = 1;
4042 mon_refcount++;
4043 break;
4044
4045 case CHR_EVENT_CLOSED:
4046 mon_refcount--;
4047 monitor_fdsets_cleanup();
4048 break;
4049 }
4050 }
4051
4052 static int
4053 compare_mon_cmd(const void *a, const void *b)
4054 {
4055 return strcmp(((const mon_cmd_t *)a)->name,
4056 ((const mon_cmd_t *)b)->name);
4057 }
4058
4059 static void sortcmdlist(void)
4060 {
4061 int array_num;
4062 int elem_size = sizeof(mon_cmd_t);
4063
4064 array_num = sizeof(mon_cmds)/elem_size-1;
4065 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4066
4067 array_num = sizeof(info_cmds)/elem_size-1;
4068 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4069 }
4070
4071
4072 /*
4073 * Local variables:
4074 * c-indent-level: 4
4075 * c-basic-offset: 4
4076 * tab-width: 8
4077 * End:
4078 */
4079
4080 /* These functions just adapt the readline interface in a typesafe way. We
4081 * could cast function pointers but that discards compiler checks.
4082 */
4083 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4084 const char *fmt, ...)
4085 {
4086 va_list ap;
4087 va_start(ap, fmt);
4088 monitor_vprintf(opaque, fmt, ap);
4089 va_end(ap);
4090 }
4091
4092 static void monitor_readline_flush(void *opaque)
4093 {
4094 monitor_flush(opaque);
4095 }
4096
4097 static void __attribute__((constructor)) monitor_lock_init(void)
4098 {
4099 qemu_mutex_init(&monitor_lock);
4100 }
4101
4102 void monitor_init(CharDriverState *chr, int flags)
4103 {
4104 static int is_first_init = 1;
4105 Monitor *mon;
4106
4107 if (is_first_init) {
4108 monitor_qapi_event_init();
4109 sortcmdlist();
4110 is_first_init = 0;
4111 }
4112
4113 mon = g_malloc(sizeof(*mon));
4114 monitor_data_init(mon);
4115
4116 mon->chr = chr;
4117 mon->flags = flags;
4118 if (flags & MONITOR_USE_READLINE) {
4119 mon->rs = readline_init(monitor_readline_printf,
4120 monitor_readline_flush,
4121 mon,
4122 monitor_find_completion);
4123 monitor_read_command(mon, 0);
4124 }
4125
4126 if (monitor_is_qmp(mon)) {
4127 qemu_chr_add_handlers(chr, monitor_can_read, monitor_qmp_read,
4128 monitor_qmp_event, mon);
4129 qemu_chr_fe_set_echo(chr, true);
4130 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
4131 } else {
4132 qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4133 monitor_event, mon);
4134 }
4135
4136 qemu_mutex_lock(&monitor_lock);
4137 QLIST_INSERT_HEAD(&mon_list, mon, entry);
4138 qemu_mutex_unlock(&monitor_lock);
4139 }
4140
4141 static void bdrv_password_cb(void *opaque, const char *password,
4142 void *readline_opaque)
4143 {
4144 Monitor *mon = opaque;
4145 BlockDriverState *bs = readline_opaque;
4146 int ret = 0;
4147 Error *local_err = NULL;
4148
4149 bdrv_add_key(bs, password, &local_err);
4150 if (local_err) {
4151 error_report_err(local_err);
4152 ret = -EPERM;
4153 }
4154 if (mon->password_completion_cb)
4155 mon->password_completion_cb(mon->password_opaque, ret);
4156
4157 monitor_read_command(mon, 1);
4158 }
4159
4160 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4161 BlockCompletionFunc *completion_cb,
4162 void *opaque)
4163 {
4164 int err;
4165
4166 monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4167 bdrv_get_encrypted_filename(bs));
4168
4169 mon->password_completion_cb = completion_cb;
4170 mon->password_opaque = opaque;
4171
4172 err = monitor_read_password(mon, bdrv_password_cb, bs);
4173
4174 if (err && completion_cb)
4175 completion_cb(opaque, err);
4176
4177 return err;
4178 }
4179
4180 int monitor_read_block_device_key(Monitor *mon, const char *device,
4181 BlockCompletionFunc *completion_cb,
4182 void *opaque)
4183 {
4184 Error *err = NULL;
4185 BlockBackend *blk;
4186
4187 blk = blk_by_name(device);
4188 if (!blk) {
4189 monitor_printf(mon, "Device not found %s\n", device);
4190 return -1;
4191 }
4192 if (!blk_bs(blk)) {
4193 monitor_printf(mon, "Device '%s' has no medium\n", device);
4194 return -1;
4195 }
4196
4197 bdrv_add_key(blk_bs(blk), NULL, &err);
4198 if (err) {
4199 error_free(err);
4200 return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque);
4201 }
4202
4203 if (completion_cb) {
4204 completion_cb(opaque, 0);
4205 }
4206 return 0;
4207 }
4208
4209 QemuOptsList qemu_mon_opts = {
4210 .name = "mon",
4211 .implied_opt_name = "chardev",
4212 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4213 .desc = {
4214 {
4215 .name = "mode",
4216 .type = QEMU_OPT_STRING,
4217 },{
4218 .name = "chardev",
4219 .type = QEMU_OPT_STRING,
4220 },{
4221 .name = "default",
4222 .type = QEMU_OPT_BOOL,
4223 },{
4224 .name = "pretty",
4225 .type = QEMU_OPT_BOOL,
4226 },
4227 { /* end of list */ }
4228 },
4229 };
4230
4231 #ifndef TARGET_I386
4232 void qmp_rtc_reset_reinjection(Error **errp)
4233 {
4234 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4235 }
4236 #endif
4237
4238 #ifndef TARGET_S390X
4239 void qmp_dump_skeys(const char *filename, Error **errp)
4240 {
4241 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4242 }
4243 #endif
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