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vl: Convert machine help code to use object property iterators
[qemu/cris-port.git] / monitor.c
blobe4cf34e3cb18d199ed01e7ce15365fd43992f99e
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 <dirent.h>
25 #include "hw/hw.h"
26 #include "monitor/qdev.h"
27 #include "hw/usb.h"
28 #include "hw/i386/pc.h"
29 #include "hw/pci/pci.h"
30 #include "sysemu/watchdog.h"
31 #include "hw/loader.h"
32 #include "exec/gdbstub.h"
33 #include "net/net.h"
34 #include "net/slirp.h"
35 #include "sysemu/char.h"
36 #include "ui/qemu-spice.h"
37 #include "sysemu/sysemu.h"
38 #include "sysemu/numa.h"
39 #include "monitor/monitor.h"
40 #include "qemu/readline.h"
41 #include "ui/console.h"
42 #include "ui/input.h"
43 #include "sysemu/blockdev.h"
44 #include "audio/audio.h"
45 #include "disas/disas.h"
46 #include "sysemu/balloon.h"
47 #include "qemu/timer.h"
48 #include "migration/migration.h"
49 #include "sysemu/kvm.h"
50 #include "qemu/acl.h"
51 #include "sysemu/tpm.h"
52 #include "qapi/qmp/qerror.h"
53 #include "qapi/qmp/qint.h"
54 #include "qapi/qmp/qfloat.h"
55 #include "qapi/qmp/qlist.h"
56 #include "qapi/qmp/qbool.h"
57 #include "qapi/qmp/qstring.h"
58 #include "qapi/qmp/qjson.h"
59 #include "qapi/qmp/json-streamer.h"
60 #include "qapi/qmp/json-parser.h"
61 #include <qom/object_interfaces.h>
62 #include "qemu/osdep.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 ErrorClass_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 monitor_printf(mon, "%s\n", error_get_pretty(local_err));
1468 error_free(local_err);
1469 } else {
1470 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1471 }
1472 }
1473
1474 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1475 {
1476 mtree_info((fprintf_function)monitor_printf, mon);
1477 }
1478
1479 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1480 {
1481 int i;
1482 CPUState *cpu;
1483 uint64_t *node_mem;
1484
1485 node_mem = g_new0(uint64_t, nb_numa_nodes);
1486 query_numa_node_mem(node_mem);
1487 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1488 for (i = 0; i < nb_numa_nodes; i++) {
1489 monitor_printf(mon, "node %d cpus:", i);
1490 CPU_FOREACH(cpu) {
1491 if (cpu->numa_node == i) {
1492 monitor_printf(mon, " %d", cpu->cpu_index);
1493 }
1494 }
1495 monitor_printf(mon, "\n");
1496 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1497 node_mem[i] >> 20);
1498 }
1499 g_free(node_mem);
1500 }
1501
1502 #ifdef CONFIG_PROFILER
1503
1504 int64_t tcg_time;
1505 int64_t dev_time;
1506
1507 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1508 {
1509 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1510 dev_time, dev_time / (double)get_ticks_per_sec());
1511 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1512 tcg_time, tcg_time / (double)get_ticks_per_sec());
1513 tcg_time = 0;
1514 dev_time = 0;
1515 }
1516 #else
1517 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1518 {
1519 monitor_printf(mon, "Internal profiler not compiled\n");
1520 }
1521 #endif
1522
1523 /* Capture support */
1524 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1525
1526 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
1527 {
1528 int i;
1529 CaptureState *s;
1530
1531 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1532 monitor_printf(mon, "[%d]: ", i);
1533 s->ops.info (s->opaque);
1534 }
1535 }
1536
1537 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
1538 {
1539 int i;
1540 int n = qdict_get_int(qdict, "n");
1541 CaptureState *s;
1542
1543 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1544 if (i == n) {
1545 s->ops.destroy (s->opaque);
1546 QLIST_REMOVE (s, entries);
1547 g_free (s);
1548 return;
1549 }
1550 }
1551 }
1552
1553 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
1554 {
1555 const char *path = qdict_get_str(qdict, "path");
1556 int has_freq = qdict_haskey(qdict, "freq");
1557 int freq = qdict_get_try_int(qdict, "freq", -1);
1558 int has_bits = qdict_haskey(qdict, "bits");
1559 int bits = qdict_get_try_int(qdict, "bits", -1);
1560 int has_channels = qdict_haskey(qdict, "nchannels");
1561 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
1562 CaptureState *s;
1563
1564 s = g_malloc0 (sizeof (*s));
1565
1566 freq = has_freq ? freq : 44100;
1567 bits = has_bits ? bits : 16;
1568 nchannels = has_channels ? nchannels : 2;
1569
1570 if (wav_start_capture (s, path, freq, bits, nchannels)) {
1571 monitor_printf(mon, "Failed to add wave capture\n");
1572 g_free (s);
1573 return;
1574 }
1575 QLIST_INSERT_HEAD (&capture_head, s, entries);
1576 }
1577
1578 static qemu_acl *find_acl(Monitor *mon, const char *name)
1579 {
1580 qemu_acl *acl = qemu_acl_find(name);
1581
1582 if (!acl) {
1583 monitor_printf(mon, "acl: unknown list '%s'\n", name);
1584 }
1585 return acl;
1586 }
1587
1588 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
1589 {
1590 const char *aclname = qdict_get_str(qdict, "aclname");
1591 qemu_acl *acl = find_acl(mon, aclname);
1592 qemu_acl_entry *entry;
1593 int i = 0;
1594
1595 if (acl) {
1596 monitor_printf(mon, "policy: %s\n",
1597 acl->defaultDeny ? "deny" : "allow");
1598 QTAILQ_FOREACH(entry, &acl->entries, next) {
1599 i++;
1600 monitor_printf(mon, "%d: %s %s\n", i,
1601 entry->deny ? "deny" : "allow", entry->match);
1602 }
1603 }
1604 }
1605
1606 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
1607 {
1608 const char *aclname = qdict_get_str(qdict, "aclname");
1609 qemu_acl *acl = find_acl(mon, aclname);
1610
1611 if (acl) {
1612 qemu_acl_reset(acl);
1613 monitor_printf(mon, "acl: removed all rules\n");
1614 }
1615 }
1616
1617 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
1618 {
1619 const char *aclname = qdict_get_str(qdict, "aclname");
1620 const char *policy = qdict_get_str(qdict, "policy");
1621 qemu_acl *acl = find_acl(mon, aclname);
1622
1623 if (acl) {
1624 if (strcmp(policy, "allow") == 0) {
1625 acl->defaultDeny = 0;
1626 monitor_printf(mon, "acl: policy set to 'allow'\n");
1627 } else if (strcmp(policy, "deny") == 0) {
1628 acl->defaultDeny = 1;
1629 monitor_printf(mon, "acl: policy set to 'deny'\n");
1630 } else {
1631 monitor_printf(mon, "acl: unknown policy '%s', "
1632 "expected 'deny' or 'allow'\n", policy);
1633 }
1634 }
1635 }
1636
1637 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
1638 {
1639 const char *aclname = qdict_get_str(qdict, "aclname");
1640 const char *match = qdict_get_str(qdict, "match");
1641 const char *policy = qdict_get_str(qdict, "policy");
1642 int has_index = qdict_haskey(qdict, "index");
1643 int index = qdict_get_try_int(qdict, "index", -1);
1644 qemu_acl *acl = find_acl(mon, aclname);
1645 int deny, ret;
1646
1647 if (acl) {
1648 if (strcmp(policy, "allow") == 0) {
1649 deny = 0;
1650 } else if (strcmp(policy, "deny") == 0) {
1651 deny = 1;
1652 } else {
1653 monitor_printf(mon, "acl: unknown policy '%s', "
1654 "expected 'deny' or 'allow'\n", policy);
1655 return;
1656 }
1657 if (has_index)
1658 ret = qemu_acl_insert(acl, deny, match, index);
1659 else
1660 ret = qemu_acl_append(acl, deny, match);
1661 if (ret < 0)
1662 monitor_printf(mon, "acl: unable to add acl entry\n");
1663 else
1664 monitor_printf(mon, "acl: added rule at position %d\n", ret);
1665 }
1666 }
1667
1668 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
1669 {
1670 const char *aclname = qdict_get_str(qdict, "aclname");
1671 const char *match = qdict_get_str(qdict, "match");
1672 qemu_acl *acl = find_acl(mon, aclname);
1673 int ret;
1674
1675 if (acl) {
1676 ret = qemu_acl_remove(acl, match);
1677 if (ret < 0)
1678 monitor_printf(mon, "acl: no matching acl entry\n");
1679 else
1680 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
1681 }
1682 }
1683
1684 void qmp_getfd(const char *fdname, Error **errp)
1685 {
1686 mon_fd_t *monfd;
1687 int fd;
1688
1689 fd = qemu_chr_fe_get_msgfd(cur_mon->chr);
1690 if (fd == -1) {
1691 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1692 return;
1693 }
1694
1695 if (qemu_isdigit(fdname[0])) {
1696 close(fd);
1697 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
1698 "a name not starting with a digit");
1699 return;
1700 }
1701
1702 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1703 if (strcmp(monfd->name, fdname) != 0) {
1704 continue;
1705 }
1706
1707 close(monfd->fd);
1708 monfd->fd = fd;
1709 return;
1710 }
1711
1712 monfd = g_malloc0(sizeof(mon_fd_t));
1713 monfd->name = g_strdup(fdname);
1714 monfd->fd = fd;
1715
1716 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
1717 }
1718
1719 void qmp_closefd(const char *fdname, Error **errp)
1720 {
1721 mon_fd_t *monfd;
1722
1723 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1724 if (strcmp(monfd->name, fdname) != 0) {
1725 continue;
1726 }
1727
1728 QLIST_REMOVE(monfd, next);
1729 close(monfd->fd);
1730 g_free(monfd->name);
1731 g_free(monfd);
1732 return;
1733 }
1734
1735 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
1736 }
1737
1738 static void hmp_loadvm(Monitor *mon, const QDict *qdict)
1739 {
1740 int saved_vm_running = runstate_is_running();
1741 const char *name = qdict_get_str(qdict, "name");
1742
1743 vm_stop(RUN_STATE_RESTORE_VM);
1744
1745 if (load_vmstate(name) == 0 && saved_vm_running) {
1746 vm_start();
1747 }
1748 }
1749
1750 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
1751 {
1752 mon_fd_t *monfd;
1753
1754 QLIST_FOREACH(monfd, &mon->fds, next) {
1755 int fd;
1756
1757 if (strcmp(monfd->name, fdname) != 0) {
1758 continue;
1759 }
1760
1761 fd = monfd->fd;
1762
1763 /* caller takes ownership of fd */
1764 QLIST_REMOVE(monfd, next);
1765 g_free(monfd->name);
1766 g_free(monfd);
1767
1768 return fd;
1769 }
1770
1771 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
1772 return -1;
1773 }
1774
1775 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
1776 {
1777 MonFdsetFd *mon_fdset_fd;
1778 MonFdsetFd *mon_fdset_fd_next;
1779
1780 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
1781 if ((mon_fdset_fd->removed ||
1782 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
1783 runstate_is_running()) {
1784 close(mon_fdset_fd->fd);
1785 g_free(mon_fdset_fd->opaque);
1786 QLIST_REMOVE(mon_fdset_fd, next);
1787 g_free(mon_fdset_fd);
1788 }
1789 }
1790
1791 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
1792 QLIST_REMOVE(mon_fdset, next);
1793 g_free(mon_fdset);
1794 }
1795 }
1796
1797 static void monitor_fdsets_cleanup(void)
1798 {
1799 MonFdset *mon_fdset;
1800 MonFdset *mon_fdset_next;
1801
1802 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
1803 monitor_fdset_cleanup(mon_fdset);
1804 }
1805 }
1806
1807 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
1808 const char *opaque, Error **errp)
1809 {
1810 int fd;
1811 Monitor *mon = cur_mon;
1812 AddfdInfo *fdinfo;
1813
1814 fd = qemu_chr_fe_get_msgfd(mon->chr);
1815 if (fd == -1) {
1816 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1817 goto error;
1818 }
1819
1820 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
1821 has_opaque, opaque, errp);
1822 if (fdinfo) {
1823 return fdinfo;
1824 }
1825
1826 error:
1827 if (fd != -1) {
1828 close(fd);
1829 }
1830 return NULL;
1831 }
1832
1833 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
1834 {
1835 MonFdset *mon_fdset;
1836 MonFdsetFd *mon_fdset_fd;
1837 char fd_str[60];
1838
1839 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1840 if (mon_fdset->id != fdset_id) {
1841 continue;
1842 }
1843 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1844 if (has_fd) {
1845 if (mon_fdset_fd->fd != fd) {
1846 continue;
1847 }
1848 mon_fdset_fd->removed = true;
1849 break;
1850 } else {
1851 mon_fdset_fd->removed = true;
1852 }
1853 }
1854 if (has_fd && !mon_fdset_fd) {
1855 goto error;
1856 }
1857 monitor_fdset_cleanup(mon_fdset);
1858 return;
1859 }
1860
1861 error:
1862 if (has_fd) {
1863 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
1864 fdset_id, fd);
1865 } else {
1866 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
1867 }
1868 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
1869 }
1870
1871 FdsetInfoList *qmp_query_fdsets(Error **errp)
1872 {
1873 MonFdset *mon_fdset;
1874 MonFdsetFd *mon_fdset_fd;
1875 FdsetInfoList *fdset_list = NULL;
1876
1877 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1878 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
1879 FdsetFdInfoList *fdsetfd_list = NULL;
1880
1881 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
1882 fdset_info->value->fdset_id = mon_fdset->id;
1883
1884 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1885 FdsetFdInfoList *fdsetfd_info;
1886
1887 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
1888 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
1889 fdsetfd_info->value->fd = mon_fdset_fd->fd;
1890 if (mon_fdset_fd->opaque) {
1891 fdsetfd_info->value->has_opaque = true;
1892 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
1893 } else {
1894 fdsetfd_info->value->has_opaque = false;
1895 }
1896
1897 fdsetfd_info->next = fdsetfd_list;
1898 fdsetfd_list = fdsetfd_info;
1899 }
1900
1901 fdset_info->value->fds = fdsetfd_list;
1902
1903 fdset_info->next = fdset_list;
1904 fdset_list = fdset_info;
1905 }
1906
1907 return fdset_list;
1908 }
1909
1910 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
1911 bool has_opaque, const char *opaque,
1912 Error **errp)
1913 {
1914 MonFdset *mon_fdset = NULL;
1915 MonFdsetFd *mon_fdset_fd;
1916 AddfdInfo *fdinfo;
1917
1918 if (has_fdset_id) {
1919 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1920 /* Break if match found or match impossible due to ordering by ID */
1921 if (fdset_id <= mon_fdset->id) {
1922 if (fdset_id < mon_fdset->id) {
1923 mon_fdset = NULL;
1924 }
1925 break;
1926 }
1927 }
1928 }
1929
1930 if (mon_fdset == NULL) {
1931 int64_t fdset_id_prev = -1;
1932 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
1933
1934 if (has_fdset_id) {
1935 if (fdset_id < 0) {
1936 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
1937 "a non-negative value");
1938 return NULL;
1939 }
1940 /* Use specified fdset ID */
1941 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1942 mon_fdset_cur = mon_fdset;
1943 if (fdset_id < mon_fdset_cur->id) {
1944 break;
1945 }
1946 }
1947 } else {
1948 /* Use first available fdset ID */
1949 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1950 mon_fdset_cur = mon_fdset;
1951 if (fdset_id_prev == mon_fdset_cur->id - 1) {
1952 fdset_id_prev = mon_fdset_cur->id;
1953 continue;
1954 }
1955 break;
1956 }
1957 }
1958
1959 mon_fdset = g_malloc0(sizeof(*mon_fdset));
1960 if (has_fdset_id) {
1961 mon_fdset->id = fdset_id;
1962 } else {
1963 mon_fdset->id = fdset_id_prev + 1;
1964 }
1965
1966 /* The fdset list is ordered by fdset ID */
1967 if (!mon_fdset_cur) {
1968 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
1969 } else if (mon_fdset->id < mon_fdset_cur->id) {
1970 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
1971 } else {
1972 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
1973 }
1974 }
1975
1976 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
1977 mon_fdset_fd->fd = fd;
1978 mon_fdset_fd->removed = false;
1979 if (has_opaque) {
1980 mon_fdset_fd->opaque = g_strdup(opaque);
1981 }
1982 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
1983
1984 fdinfo = g_malloc0(sizeof(*fdinfo));
1985 fdinfo->fdset_id = mon_fdset->id;
1986 fdinfo->fd = mon_fdset_fd->fd;
1987
1988 return fdinfo;
1989 }
1990
1991 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
1992 {
1993 #ifndef _WIN32
1994 MonFdset *mon_fdset;
1995 MonFdsetFd *mon_fdset_fd;
1996 int mon_fd_flags;
1997
1998 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1999 if (mon_fdset->id != fdset_id) {
2000 continue;
2001 }
2002 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2003 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2004 if (mon_fd_flags == -1) {
2005 return -1;
2006 }
2007
2008 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2009 return mon_fdset_fd->fd;
2010 }
2011 }
2012 errno = EACCES;
2013 return -1;
2014 }
2015 #endif
2016
2017 errno = ENOENT;
2018 return -1;
2019 }
2020
2021 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2022 {
2023 MonFdset *mon_fdset;
2024 MonFdsetFd *mon_fdset_fd_dup;
2025
2026 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2027 if (mon_fdset->id != fdset_id) {
2028 continue;
2029 }
2030 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2031 if (mon_fdset_fd_dup->fd == dup_fd) {
2032 return -1;
2033 }
2034 }
2035 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2036 mon_fdset_fd_dup->fd = dup_fd;
2037 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2038 return 0;
2039 }
2040 return -1;
2041 }
2042
2043 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2044 {
2045 MonFdset *mon_fdset;
2046 MonFdsetFd *mon_fdset_fd_dup;
2047
2048 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2049 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2050 if (mon_fdset_fd_dup->fd == dup_fd) {
2051 if (remove) {
2052 QLIST_REMOVE(mon_fdset_fd_dup, next);
2053 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2054 monitor_fdset_cleanup(mon_fdset);
2055 }
2056 return -1;
2057 } else {
2058 return mon_fdset->id;
2059 }
2060 }
2061 }
2062 }
2063 return -1;
2064 }
2065
2066 int monitor_fdset_dup_fd_find(int dup_fd)
2067 {
2068 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2069 }
2070
2071 void monitor_fdset_dup_fd_remove(int dup_fd)
2072 {
2073 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2074 }
2075
2076 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2077 {
2078 int fd;
2079 Error *local_err = NULL;
2080
2081 if (!qemu_isdigit(fdname[0]) && mon) {
2082 fd = monitor_get_fd(mon, fdname, &local_err);
2083 } else {
2084 fd = qemu_parse_fd(fdname);
2085 if (fd == -1) {
2086 error_setg(&local_err, "Invalid file descriptor number '%s'",
2087 fdname);
2088 }
2089 }
2090 if (local_err) {
2091 error_propagate(errp, local_err);
2092 assert(fd == -1);
2093 } else {
2094 assert(fd != -1);
2095 }
2096
2097 return fd;
2098 }
2099
2100 /* Please update hmp-commands.hx when adding or changing commands */
2101 static mon_cmd_t info_cmds[] = {
2102 #include "hmp-commands-info.h"
2103 { NULL, NULL, },
2104 };
2105
2106 /* mon_cmds and info_cmds would be sorted at runtime */
2107 static mon_cmd_t mon_cmds[] = {
2108 #include "hmp-commands.h"
2109 { NULL, NULL, },
2110 };
2111
2112 static const mon_cmd_t qmp_cmds[] = {
2113 #include "qmp-commands-old.h"
2114 { /* NULL */ },
2115 };
2116
2117 /*******************************************************************/
2118
2119 static const char *pch;
2120 static sigjmp_buf expr_env;
2121
2122
2123 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2124 expr_error(Monitor *mon, const char *fmt, ...)
2125 {
2126 va_list ap;
2127 va_start(ap, fmt);
2128 monitor_vprintf(mon, fmt, ap);
2129 monitor_printf(mon, "\n");
2130 va_end(ap);
2131 siglongjmp(expr_env, 1);
2132 }
2133
2134 /* return 0 if OK, -1 if not found */
2135 static int get_monitor_def(target_long *pval, const char *name)
2136 {
2137 const MonitorDef *md = target_monitor_defs();
2138 void *ptr;
2139 uint64_t tmp = 0;
2140 int ret;
2141
2142 if (md == NULL) {
2143 return -1;
2144 }
2145
2146 for(; md->name != NULL; md++) {
2147 if (compare_cmd(name, md->name)) {
2148 if (md->get_value) {
2149 *pval = md->get_value(md, md->offset);
2150 } else {
2151 CPUArchState *env = mon_get_cpu_env();
2152 ptr = (uint8_t *)env + md->offset;
2153 switch(md->type) {
2154 case MD_I32:
2155 *pval = *(int32_t *)ptr;
2156 break;
2157 case MD_TLONG:
2158 *pval = *(target_long *)ptr;
2159 break;
2160 default:
2161 *pval = 0;
2162 break;
2163 }
2164 }
2165 return 0;
2166 }
2167 }
2168
2169 ret = target_get_monitor_def(mon_get_cpu(), name, &tmp);
2170 if (!ret) {
2171 *pval = (target_long) tmp;
2172 }
2173
2174 return ret;
2175 }
2176
2177 static void next(void)
2178 {
2179 if (*pch != '\0') {
2180 pch++;
2181 while (qemu_isspace(*pch))
2182 pch++;
2183 }
2184 }
2185
2186 static int64_t expr_sum(Monitor *mon);
2187
2188 static int64_t expr_unary(Monitor *mon)
2189 {
2190 int64_t n;
2191 char *p;
2192 int ret;
2193
2194 switch(*pch) {
2195 case '+':
2196 next();
2197 n = expr_unary(mon);
2198 break;
2199 case '-':
2200 next();
2201 n = -expr_unary(mon);
2202 break;
2203 case '~':
2204 next();
2205 n = ~expr_unary(mon);
2206 break;
2207 case '(':
2208 next();
2209 n = expr_sum(mon);
2210 if (*pch != ')') {
2211 expr_error(mon, "')' expected");
2212 }
2213 next();
2214 break;
2215 case '\'':
2216 pch++;
2217 if (*pch == '\0')
2218 expr_error(mon, "character constant expected");
2219 n = *pch;
2220 pch++;
2221 if (*pch != '\'')
2222 expr_error(mon, "missing terminating \' character");
2223 next();
2224 break;
2225 case '$':
2226 {
2227 char buf[128], *q;
2228 target_long reg=0;
2229
2230 pch++;
2231 q = buf;
2232 while ((*pch >= 'a' && *pch <= 'z') ||
2233 (*pch >= 'A' && *pch <= 'Z') ||
2234 (*pch >= '0' && *pch <= '9') ||
2235 *pch == '_' || *pch == '.') {
2236 if ((q - buf) < sizeof(buf) - 1)
2237 *q++ = *pch;
2238 pch++;
2239 }
2240 while (qemu_isspace(*pch))
2241 pch++;
2242 *q = 0;
2243 ret = get_monitor_def(&reg, buf);
2244 if (ret < 0)
2245 expr_error(mon, "unknown register");
2246 n = reg;
2247 }
2248 break;
2249 case '\0':
2250 expr_error(mon, "unexpected end of expression");
2251 n = 0;
2252 break;
2253 default:
2254 errno = 0;
2255 n = strtoull(pch, &p, 0);
2256 if (errno == ERANGE) {
2257 expr_error(mon, "number too large");
2258 }
2259 if (pch == p) {
2260 expr_error(mon, "invalid char '%c' in expression", *p);
2261 }
2262 pch = p;
2263 while (qemu_isspace(*pch))
2264 pch++;
2265 break;
2266 }
2267 return n;
2268 }
2269
2270
2271 static int64_t expr_prod(Monitor *mon)
2272 {
2273 int64_t val, val2;
2274 int op;
2275
2276 val = expr_unary(mon);
2277 for(;;) {
2278 op = *pch;
2279 if (op != '*' && op != '/' && op != '%')
2280 break;
2281 next();
2282 val2 = expr_unary(mon);
2283 switch(op) {
2284 default:
2285 case '*':
2286 val *= val2;
2287 break;
2288 case '/':
2289 case '%':
2290 if (val2 == 0)
2291 expr_error(mon, "division by zero");
2292 if (op == '/')
2293 val /= val2;
2294 else
2295 val %= val2;
2296 break;
2297 }
2298 }
2299 return val;
2300 }
2301
2302 static int64_t expr_logic(Monitor *mon)
2303 {
2304 int64_t val, val2;
2305 int op;
2306
2307 val = expr_prod(mon);
2308 for(;;) {
2309 op = *pch;
2310 if (op != '&' && op != '|' && op != '^')
2311 break;
2312 next();
2313 val2 = expr_prod(mon);
2314 switch(op) {
2315 default:
2316 case '&':
2317 val &= val2;
2318 break;
2319 case '|':
2320 val |= val2;
2321 break;
2322 case '^':
2323 val ^= val2;
2324 break;
2325 }
2326 }
2327 return val;
2328 }
2329
2330 static int64_t expr_sum(Monitor *mon)
2331 {
2332 int64_t val, val2;
2333 int op;
2334
2335 val = expr_logic(mon);
2336 for(;;) {
2337 op = *pch;
2338 if (op != '+' && op != '-')
2339 break;
2340 next();
2341 val2 = expr_logic(mon);
2342 if (op == '+')
2343 val += val2;
2344 else
2345 val -= val2;
2346 }
2347 return val;
2348 }
2349
2350 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2351 {
2352 pch = *pp;
2353 if (sigsetjmp(expr_env, 0)) {
2354 *pp = pch;
2355 return -1;
2356 }
2357 while (qemu_isspace(*pch))
2358 pch++;
2359 *pval = expr_sum(mon);
2360 *pp = pch;
2361 return 0;
2362 }
2363
2364 static int get_double(Monitor *mon, double *pval, const char **pp)
2365 {
2366 const char *p = *pp;
2367 char *tailp;
2368 double d;
2369
2370 d = strtod(p, &tailp);
2371 if (tailp == p) {
2372 monitor_printf(mon, "Number expected\n");
2373 return -1;
2374 }
2375 if (d != d || d - d != 0) {
2376 /* NaN or infinity */
2377 monitor_printf(mon, "Bad number\n");
2378 return -1;
2379 }
2380 *pval = d;
2381 *pp = tailp;
2382 return 0;
2383 }
2384
2385 /*
2386 * Store the command-name in cmdname, and return a pointer to
2387 * the remaining of the command string.
2388 */
2389 static const char *get_command_name(const char *cmdline,
2390 char *cmdname, size_t nlen)
2391 {
2392 size_t len;
2393 const char *p, *pstart;
2394
2395 p = cmdline;
2396 while (qemu_isspace(*p))
2397 p++;
2398 if (*p == '\0')
2399 return NULL;
2400 pstart = p;
2401 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2402 p++;
2403 len = p - pstart;
2404 if (len > nlen - 1)
2405 len = nlen - 1;
2406 memcpy(cmdname, pstart, len);
2407 cmdname[len] = '\0';
2408 return p;
2409 }
2410
2411 /**
2412 * Read key of 'type' into 'key' and return the current
2413 * 'type' pointer.
2414 */
2415 static char *key_get_info(const char *type, char **key)
2416 {
2417 size_t len;
2418 char *p, *str;
2419
2420 if (*type == ',')
2421 type++;
2422
2423 p = strchr(type, ':');
2424 if (!p) {
2425 *key = NULL;
2426 return NULL;
2427 }
2428 len = p - type;
2429
2430 str = g_malloc(len + 1);
2431 memcpy(str, type, len);
2432 str[len] = '\0';
2433
2434 *key = str;
2435 return ++p;
2436 }
2437
2438 static int default_fmt_format = 'x';
2439 static int default_fmt_size = 4;
2440
2441 static int is_valid_option(const char *c, const char *typestr)
2442 {
2443 char option[3];
2444
2445 option[0] = '-';
2446 option[1] = *c;
2447 option[2] = '\0';
2448
2449 typestr = strstr(typestr, option);
2450 return (typestr != NULL);
2451 }
2452
2453 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2454 const char *cmdname)
2455 {
2456 const mon_cmd_t *cmd;
2457
2458 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2459 if (compare_cmd(cmdname, cmd->name)) {
2460 return cmd;
2461 }
2462 }
2463
2464 return NULL;
2465 }
2466
2467 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
2468 {
2469 return search_dispatch_table(qmp_cmds, cmdname);
2470 }
2471
2472 /*
2473 * Parse command name from @cmdp according to command table @table.
2474 * If blank, return NULL.
2475 * Else, if no valid command can be found, report to @mon, and return
2476 * NULL.
2477 * Else, change @cmdp to point right behind the name, and return its
2478 * command table entry.
2479 * Do not assume the return value points into @table! It doesn't when
2480 * the command is found in a sub-command table.
2481 */
2482 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2483 const char **cmdp,
2484 mon_cmd_t *table)
2485 {
2486 const char *p;
2487 const mon_cmd_t *cmd;
2488 char cmdname[256];
2489
2490 /* extract the command name */
2491 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2492 if (!p)
2493 return NULL;
2494
2495 cmd = search_dispatch_table(table, cmdname);
2496 if (!cmd) {
2497 monitor_printf(mon, "unknown command: '%.*s'\n",
2498 (int)(p - *cmdp), *cmdp);
2499 return NULL;
2500 }
2501
2502 /* filter out following useless space */
2503 while (qemu_isspace(*p)) {
2504 p++;
2505 }
2506
2507 *cmdp = p;
2508 /* search sub command */
2509 if (cmd->sub_table != NULL && *p != '\0') {
2510 return monitor_parse_command(mon, cmdp, cmd->sub_table);
2511 }
2512
2513 return cmd;
2514 }
2515
2516 /*
2517 * Parse arguments for @cmd.
2518 * If it can't be parsed, report to @mon, and return NULL.
2519 * Else, insert command arguments into a QDict, and return it.
2520 * Note: On success, caller has to free the QDict structure.
2521 */
2522
2523 static QDict *monitor_parse_arguments(Monitor *mon,
2524 const char **endp,
2525 const mon_cmd_t *cmd)
2526 {
2527 const char *typestr;
2528 char *key;
2529 int c;
2530 const char *p = *endp;
2531 char buf[1024];
2532 QDict *qdict = qdict_new();
2533
2534 /* parse the parameters */
2535 typestr = cmd->args_type;
2536 for(;;) {
2537 typestr = key_get_info(typestr, &key);
2538 if (!typestr)
2539 break;
2540 c = *typestr;
2541 typestr++;
2542 switch(c) {
2543 case 'F':
2544 case 'B':
2545 case 's':
2546 {
2547 int ret;
2548
2549 while (qemu_isspace(*p))
2550 p++;
2551 if (*typestr == '?') {
2552 typestr++;
2553 if (*p == '\0') {
2554 /* no optional string: NULL argument */
2555 break;
2556 }
2557 }
2558 ret = get_str(buf, sizeof(buf), &p);
2559 if (ret < 0) {
2560 switch(c) {
2561 case 'F':
2562 monitor_printf(mon, "%s: filename expected\n",
2563 cmd->name);
2564 break;
2565 case 'B':
2566 monitor_printf(mon, "%s: block device name expected\n",
2567 cmd->name);
2568 break;
2569 default:
2570 monitor_printf(mon, "%s: string expected\n", cmd->name);
2571 break;
2572 }
2573 goto fail;
2574 }
2575 qdict_put(qdict, key, qstring_from_str(buf));
2576 }
2577 break;
2578 case 'O':
2579 {
2580 QemuOptsList *opts_list;
2581 QemuOpts *opts;
2582
2583 opts_list = qemu_find_opts(key);
2584 if (!opts_list || opts_list->desc->name) {
2585 goto bad_type;
2586 }
2587 while (qemu_isspace(*p)) {
2588 p++;
2589 }
2590 if (!*p)
2591 break;
2592 if (get_str(buf, sizeof(buf), &p) < 0) {
2593 goto fail;
2594 }
2595 opts = qemu_opts_parse_noisily(opts_list, buf, true);
2596 if (!opts) {
2597 goto fail;
2598 }
2599 qemu_opts_to_qdict(opts, qdict);
2600 qemu_opts_del(opts);
2601 }
2602 break;
2603 case '/':
2604 {
2605 int count, format, size;
2606
2607 while (qemu_isspace(*p))
2608 p++;
2609 if (*p == '/') {
2610 /* format found */
2611 p++;
2612 count = 1;
2613 if (qemu_isdigit(*p)) {
2614 count = 0;
2615 while (qemu_isdigit(*p)) {
2616 count = count * 10 + (*p - '0');
2617 p++;
2618 }
2619 }
2620 size = -1;
2621 format = -1;
2622 for(;;) {
2623 switch(*p) {
2624 case 'o':
2625 case 'd':
2626 case 'u':
2627 case 'x':
2628 case 'i':
2629 case 'c':
2630 format = *p++;
2631 break;
2632 case 'b':
2633 size = 1;
2634 p++;
2635 break;
2636 case 'h':
2637 size = 2;
2638 p++;
2639 break;
2640 case 'w':
2641 size = 4;
2642 p++;
2643 break;
2644 case 'g':
2645 case 'L':
2646 size = 8;
2647 p++;
2648 break;
2649 default:
2650 goto next;
2651 }
2652 }
2653 next:
2654 if (*p != '\0' && !qemu_isspace(*p)) {
2655 monitor_printf(mon, "invalid char in format: '%c'\n",
2656 *p);
2657 goto fail;
2658 }
2659 if (format < 0)
2660 format = default_fmt_format;
2661 if (format != 'i') {
2662 /* for 'i', not specifying a size gives -1 as size */
2663 if (size < 0)
2664 size = default_fmt_size;
2665 default_fmt_size = size;
2666 }
2667 default_fmt_format = format;
2668 } else {
2669 count = 1;
2670 format = default_fmt_format;
2671 if (format != 'i') {
2672 size = default_fmt_size;
2673 } else {
2674 size = -1;
2675 }
2676 }
2677 qdict_put(qdict, "count", qint_from_int(count));
2678 qdict_put(qdict, "format", qint_from_int(format));
2679 qdict_put(qdict, "size", qint_from_int(size));
2680 }
2681 break;
2682 case 'i':
2683 case 'l':
2684 case 'M':
2685 {
2686 int64_t val;
2687
2688 while (qemu_isspace(*p))
2689 p++;
2690 if (*typestr == '?' || *typestr == '.') {
2691 if (*typestr == '?') {
2692 if (*p == '\0') {
2693 typestr++;
2694 break;
2695 }
2696 } else {
2697 if (*p == '.') {
2698 p++;
2699 while (qemu_isspace(*p))
2700 p++;
2701 } else {
2702 typestr++;
2703 break;
2704 }
2705 }
2706 typestr++;
2707 }
2708 if (get_expr(mon, &val, &p))
2709 goto fail;
2710 /* Check if 'i' is greater than 32-bit */
2711 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
2712 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
2713 monitor_printf(mon, "integer is for 32-bit values\n");
2714 goto fail;
2715 } else if (c == 'M') {
2716 if (val < 0) {
2717 monitor_printf(mon, "enter a positive value\n");
2718 goto fail;
2719 }
2720 val <<= 20;
2721 }
2722 qdict_put(qdict, key, qint_from_int(val));
2723 }
2724 break;
2725 case 'o':
2726 {
2727 int64_t val;
2728 char *end;
2729
2730 while (qemu_isspace(*p)) {
2731 p++;
2732 }
2733 if (*typestr == '?') {
2734 typestr++;
2735 if (*p == '\0') {
2736 break;
2737 }
2738 }
2739 val = qemu_strtosz(p, &end);
2740 if (val < 0) {
2741 monitor_printf(mon, "invalid size\n");
2742 goto fail;
2743 }
2744 qdict_put(qdict, key, qint_from_int(val));
2745 p = end;
2746 }
2747 break;
2748 case 'T':
2749 {
2750 double val;
2751
2752 while (qemu_isspace(*p))
2753 p++;
2754 if (*typestr == '?') {
2755 typestr++;
2756 if (*p == '\0') {
2757 break;
2758 }
2759 }
2760 if (get_double(mon, &val, &p) < 0) {
2761 goto fail;
2762 }
2763 if (p[0] && p[1] == 's') {
2764 switch (*p) {
2765 case 'm':
2766 val /= 1e3; p += 2; break;
2767 case 'u':
2768 val /= 1e6; p += 2; break;
2769 case 'n':
2770 val /= 1e9; p += 2; break;
2771 }
2772 }
2773 if (*p && !qemu_isspace(*p)) {
2774 monitor_printf(mon, "Unknown unit suffix\n");
2775 goto fail;
2776 }
2777 qdict_put(qdict, key, qfloat_from_double(val));
2778 }
2779 break;
2780 case 'b':
2781 {
2782 const char *beg;
2783 bool val;
2784
2785 while (qemu_isspace(*p)) {
2786 p++;
2787 }
2788 beg = p;
2789 while (qemu_isgraph(*p)) {
2790 p++;
2791 }
2792 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
2793 val = true;
2794 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
2795 val = false;
2796 } else {
2797 monitor_printf(mon, "Expected 'on' or 'off'\n");
2798 goto fail;
2799 }
2800 qdict_put(qdict, key, qbool_from_bool(val));
2801 }
2802 break;
2803 case '-':
2804 {
2805 const char *tmp = p;
2806 int skip_key = 0;
2807 /* option */
2808
2809 c = *typestr++;
2810 if (c == '\0')
2811 goto bad_type;
2812 while (qemu_isspace(*p))
2813 p++;
2814 if (*p == '-') {
2815 p++;
2816 if(c != *p) {
2817 if(!is_valid_option(p, typestr)) {
2818
2819 monitor_printf(mon, "%s: unsupported option -%c\n",
2820 cmd->name, *p);
2821 goto fail;
2822 } else {
2823 skip_key = 1;
2824 }
2825 }
2826 if(skip_key) {
2827 p = tmp;
2828 } else {
2829 /* has option */
2830 p++;
2831 qdict_put(qdict, key, qbool_from_bool(true));
2832 }
2833 }
2834 }
2835 break;
2836 case 'S':
2837 {
2838 /* package all remaining string */
2839 int len;
2840
2841 while (qemu_isspace(*p)) {
2842 p++;
2843 }
2844 if (*typestr == '?') {
2845 typestr++;
2846 if (*p == '\0') {
2847 /* no remaining string: NULL argument */
2848 break;
2849 }
2850 }
2851 len = strlen(p);
2852 if (len <= 0) {
2853 monitor_printf(mon, "%s: string expected\n",
2854 cmd->name);
2855 goto fail;
2856 }
2857 qdict_put(qdict, key, qstring_from_str(p));
2858 p += len;
2859 }
2860 break;
2861 default:
2862 bad_type:
2863 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
2864 goto fail;
2865 }
2866 g_free(key);
2867 key = NULL;
2868 }
2869 /* check that all arguments were parsed */
2870 while (qemu_isspace(*p))
2871 p++;
2872 if (*p != '\0') {
2873 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
2874 cmd->name);
2875 goto fail;
2876 }
2877
2878 return qdict;
2879
2880 fail:
2881 QDECREF(qdict);
2882 g_free(key);
2883 return NULL;
2884 }
2885
2886 static void handle_hmp_command(Monitor *mon, const char *cmdline)
2887 {
2888 QDict *qdict;
2889 const mon_cmd_t *cmd;
2890
2891 cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table);
2892 if (!cmd) {
2893 return;
2894 }
2895
2896 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
2897 if (!qdict) {
2898 monitor_printf(mon, "Try \"help %s\" for more information\n",
2899 cmd->name);
2900 return;
2901 }
2902
2903 cmd->mhandler.cmd(mon, qdict);
2904 QDECREF(qdict);
2905 }
2906
2907 static void cmd_completion(Monitor *mon, const char *name, const char *list)
2908 {
2909 const char *p, *pstart;
2910 char cmd[128];
2911 int len;
2912
2913 p = list;
2914 for(;;) {
2915 pstart = p;
2916 p = strchr(p, '|');
2917 if (!p)
2918 p = pstart + strlen(pstart);
2919 len = p - pstart;
2920 if (len > sizeof(cmd) - 2)
2921 len = sizeof(cmd) - 2;
2922 memcpy(cmd, pstart, len);
2923 cmd[len] = '\0';
2924 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2925 readline_add_completion(mon->rs, cmd);
2926 }
2927 if (*p == '\0')
2928 break;
2929 p++;
2930 }
2931 }
2932
2933 static void file_completion(Monitor *mon, const char *input)
2934 {
2935 DIR *ffs;
2936 struct dirent *d;
2937 char path[1024];
2938 char file[1024], file_prefix[1024];
2939 int input_path_len;
2940 const char *p;
2941
2942 p = strrchr(input, '/');
2943 if (!p) {
2944 input_path_len = 0;
2945 pstrcpy(file_prefix, sizeof(file_prefix), input);
2946 pstrcpy(path, sizeof(path), ".");
2947 } else {
2948 input_path_len = p - input + 1;
2949 memcpy(path, input, input_path_len);
2950 if (input_path_len > sizeof(path) - 1)
2951 input_path_len = sizeof(path) - 1;
2952 path[input_path_len] = '\0';
2953 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
2954 }
2955
2956 ffs = opendir(path);
2957 if (!ffs)
2958 return;
2959 for(;;) {
2960 struct stat sb;
2961 d = readdir(ffs);
2962 if (!d)
2963 break;
2964
2965 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
2966 continue;
2967 }
2968
2969 if (strstart(d->d_name, file_prefix, NULL)) {
2970 memcpy(file, input, input_path_len);
2971 if (input_path_len < sizeof(file))
2972 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
2973 d->d_name);
2974 /* stat the file to find out if it's a directory.
2975 * In that case add a slash to speed up typing long paths
2976 */
2977 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
2978 pstrcat(file, sizeof(file), "/");
2979 }
2980 readline_add_completion(mon->rs, file);
2981 }
2982 }
2983 closedir(ffs);
2984 }
2985
2986 static const char *next_arg_type(const char *typestr)
2987 {
2988 const char *p = strchr(typestr, ':');
2989 return (p != NULL ? ++p : typestr);
2990 }
2991
2992 static void add_completion_option(ReadLineState *rs, const char *str,
2993 const char *option)
2994 {
2995 if (!str || !option) {
2996 return;
2997 }
2998 if (!strncmp(option, str, strlen(str))) {
2999 readline_add_completion(rs, option);
3000 }
3001 }
3002
3003 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3004 {
3005 size_t len;
3006 ChardevBackendInfoList *list, *start;
3007
3008 if (nb_args != 2) {
3009 return;
3010 }
3011 len = strlen(str);
3012 readline_set_completion_index(rs, len);
3013
3014 start = list = qmp_query_chardev_backends(NULL);
3015 while (list) {
3016 const char *chr_name = list->value->name;
3017
3018 if (!strncmp(chr_name, str, len)) {
3019 readline_add_completion(rs, chr_name);
3020 }
3021 list = list->next;
3022 }
3023 qapi_free_ChardevBackendInfoList(start);
3024 }
3025
3026 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3027 {
3028 size_t len;
3029 int i;
3030
3031 if (nb_args != 2) {
3032 return;
3033 }
3034 len = strlen(str);
3035 readline_set_completion_index(rs, len);
3036 for (i = 0; NetClientOptionsKind_lookup[i]; i++) {
3037 add_completion_option(rs, str, NetClientOptionsKind_lookup[i]);
3038 }
3039 }
3040
3041 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3042 {
3043 GSList *list, *elt;
3044 size_t len;
3045
3046 if (nb_args != 2) {
3047 return;
3048 }
3049
3050 len = strlen(str);
3051 readline_set_completion_index(rs, len);
3052 list = elt = object_class_get_list(TYPE_DEVICE, false);
3053 while (elt) {
3054 const char *name;
3055 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3056 TYPE_DEVICE);
3057 name = object_class_get_name(OBJECT_CLASS(dc));
3058
3059 if (!dc->cannot_instantiate_with_device_add_yet
3060 && !strncmp(name, str, len)) {
3061 readline_add_completion(rs, name);
3062 }
3063 elt = elt->next;
3064 }
3065 g_slist_free(list);
3066 }
3067
3068 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3069 {
3070 GSList *list, *elt;
3071 size_t len;
3072
3073 if (nb_args != 2) {
3074 return;
3075 }
3076
3077 len = strlen(str);
3078 readline_set_completion_index(rs, len);
3079 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3080 while (elt) {
3081 const char *name;
3082
3083 name = object_class_get_name(OBJECT_CLASS(elt->data));
3084 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3085 readline_add_completion(rs, name);
3086 }
3087 elt = elt->next;
3088 }
3089 g_slist_free(list);
3090 }
3091
3092 static void peripheral_device_del_completion(ReadLineState *rs,
3093 const char *str, size_t len)
3094 {
3095 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3096 GSList *list, *item;
3097
3098 list = qdev_build_hotpluggable_device_list(peripheral);
3099 if (!list) {
3100 return;
3101 }
3102
3103 for (item = list; item; item = g_slist_next(item)) {
3104 DeviceState *dev = item->data;
3105
3106 if (dev->id && !strncmp(str, dev->id, len)) {
3107 readline_add_completion(rs, dev->id);
3108 }
3109 }
3110
3111 g_slist_free(list);
3112 }
3113
3114 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3115 {
3116 size_t len;
3117 ChardevInfoList *list, *start;
3118
3119 if (nb_args != 2) {
3120 return;
3121 }
3122 len = strlen(str);
3123 readline_set_completion_index(rs, len);
3124
3125 start = list = qmp_query_chardev(NULL);
3126 while (list) {
3127 ChardevInfo *chr = list->value;
3128
3129 if (!strncmp(chr->label, str, len)) {
3130 readline_add_completion(rs, chr->label);
3131 }
3132 list = list->next;
3133 }
3134 qapi_free_ChardevInfoList(start);
3135 }
3136
3137 static void ringbuf_completion(ReadLineState *rs, const char *str)
3138 {
3139 size_t len;
3140 ChardevInfoList *list, *start;
3141
3142 len = strlen(str);
3143 readline_set_completion_index(rs, len);
3144
3145 start = list = qmp_query_chardev(NULL);
3146 while (list) {
3147 ChardevInfo *chr_info = list->value;
3148
3149 if (!strncmp(chr_info->label, str, len)) {
3150 CharDriverState *chr = qemu_chr_find(chr_info->label);
3151 if (chr && chr_is_ringbuf(chr)) {
3152 readline_add_completion(rs, chr_info->label);
3153 }
3154 }
3155 list = list->next;
3156 }
3157 qapi_free_ChardevInfoList(start);
3158 }
3159
3160 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3161 {
3162 if (nb_args != 2) {
3163 return;
3164 }
3165 ringbuf_completion(rs, str);
3166 }
3167
3168 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3169 {
3170 size_t len;
3171
3172 if (nb_args != 2) {
3173 return;
3174 }
3175
3176 len = strlen(str);
3177 readline_set_completion_index(rs, len);
3178 peripheral_device_del_completion(rs, str, len);
3179 }
3180
3181 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3182 {
3183 ObjectPropertyInfoList *list, *start;
3184 size_t len;
3185
3186 if (nb_args != 2) {
3187 return;
3188 }
3189 len = strlen(str);
3190 readline_set_completion_index(rs, len);
3191
3192 start = list = qmp_qom_list("/objects", NULL);
3193 while (list) {
3194 ObjectPropertyInfo *info = list->value;
3195
3196 if (!strncmp(info->type, "child<", 5)
3197 && !strncmp(info->name, str, len)) {
3198 readline_add_completion(rs, info->name);
3199 }
3200 list = list->next;
3201 }
3202 qapi_free_ObjectPropertyInfoList(start);
3203 }
3204
3205 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3206 {
3207 int i;
3208 char *sep;
3209 size_t len;
3210
3211 if (nb_args != 2) {
3212 return;
3213 }
3214 sep = strrchr(str, '-');
3215 if (sep) {
3216 str = sep + 1;
3217 }
3218 len = strlen(str);
3219 readline_set_completion_index(rs, len);
3220 for (i = 0; i < Q_KEY_CODE_MAX; i++) {
3221 if (!strncmp(str, QKeyCode_lookup[i], len)) {
3222 readline_add_completion(rs, QKeyCode_lookup[i]);
3223 }
3224 }
3225 }
3226
3227 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3228 {
3229 size_t len;
3230
3231 len = strlen(str);
3232 readline_set_completion_index(rs, len);
3233 if (nb_args == 2) {
3234 NetClientState *ncs[MAX_QUEUE_NUM];
3235 int count, i;
3236 count = qemu_find_net_clients_except(NULL, ncs,
3237 NET_CLIENT_OPTIONS_KIND_NONE,
3238 MAX_QUEUE_NUM);
3239 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3240 const char *name = ncs[i]->name;
3241 if (!strncmp(str, name, len)) {
3242 readline_add_completion(rs, name);
3243 }
3244 }
3245 } else if (nb_args == 3) {
3246 add_completion_option(rs, str, "on");
3247 add_completion_option(rs, str, "off");
3248 }
3249 }
3250
3251 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3252 {
3253 int len, count, i;
3254 NetClientState *ncs[MAX_QUEUE_NUM];
3255
3256 if (nb_args != 2) {
3257 return;
3258 }
3259
3260 len = strlen(str);
3261 readline_set_completion_index(rs, len);
3262 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_OPTIONS_KIND_NIC,
3263 MAX_QUEUE_NUM);
3264 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3265 QemuOpts *opts;
3266 const char *name = ncs[i]->name;
3267 if (strncmp(str, name, len)) {
3268 continue;
3269 }
3270 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3271 if (opts) {
3272 readline_add_completion(rs, name);
3273 }
3274 }
3275 }
3276
3277 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3278 {
3279 size_t len;
3280
3281 len = strlen(str);
3282 readline_set_completion_index(rs, len);
3283 if (nb_args == 2) {
3284 TraceEventID id;
3285 for (id = 0; id < trace_event_count(); id++) {
3286 const char *event_name = trace_event_get_name(trace_event_id(id));
3287 if (!strncmp(str, event_name, len)) {
3288 readline_add_completion(rs, event_name);
3289 }
3290 }
3291 } else if (nb_args == 3) {
3292 add_completion_option(rs, str, "on");
3293 add_completion_option(rs, str, "off");
3294 }
3295 }
3296
3297 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3298 {
3299 int i;
3300
3301 if (nb_args != 2) {
3302 return;
3303 }
3304 readline_set_completion_index(rs, strlen(str));
3305 for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
3306 add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
3307 }
3308 }
3309
3310 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3311 const char *str)
3312 {
3313 size_t len;
3314
3315 len = strlen(str);
3316 readline_set_completion_index(rs, len);
3317 if (nb_args == 2) {
3318 int i;
3319 for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) {
3320 const char *name = MigrationCapability_lookup[i];
3321 if (!strncmp(str, name, len)) {
3322 readline_add_completion(rs, name);
3323 }
3324 }
3325 } else if (nb_args == 3) {
3326 add_completion_option(rs, str, "on");
3327 add_completion_option(rs, str, "off");
3328 }
3329 }
3330
3331 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3332 const char *str)
3333 {
3334 size_t len;
3335
3336 len = strlen(str);
3337 readline_set_completion_index(rs, len);
3338 if (nb_args == 2) {
3339 int i;
3340 for (i = 0; i < MIGRATION_PARAMETER_MAX; i++) {
3341 const char *name = MigrationParameter_lookup[i];
3342 if (!strncmp(str, name, len)) {
3343 readline_add_completion(rs, name);
3344 }
3345 }
3346 }
3347 }
3348
3349 void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
3350 {
3351 int i;
3352 size_t len;
3353 if (nb_args != 2) {
3354 return;
3355 }
3356 len = strlen(str);
3357 readline_set_completion_index(rs, len);
3358 for (i = 0; host_net_devices[i]; i++) {
3359 if (!strncmp(host_net_devices[i], str, len)) {
3360 readline_add_completion(rs, host_net_devices[i]);
3361 }
3362 }
3363 }
3364
3365 void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3366 {
3367 NetClientState *ncs[MAX_QUEUE_NUM];
3368 int count, i, len;
3369
3370 len = strlen(str);
3371 readline_set_completion_index(rs, len);
3372 if (nb_args == 2) {
3373 count = qemu_find_net_clients_except(NULL, ncs,
3374 NET_CLIENT_OPTIONS_KIND_NONE,
3375 MAX_QUEUE_NUM);
3376 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3377 int id;
3378 char name[16];
3379
3380 if (net_hub_id_for_client(ncs[i], &id)) {
3381 continue;
3382 }
3383 snprintf(name, sizeof(name), "%d", id);
3384 if (!strncmp(str, name, len)) {
3385 readline_add_completion(rs, name);
3386 }
3387 }
3388 return;
3389 } else if (nb_args == 3) {
3390 count = qemu_find_net_clients_except(NULL, ncs,
3391 NET_CLIENT_OPTIONS_KIND_NIC,
3392 MAX_QUEUE_NUM);
3393 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3394 int id;
3395 const char *name;
3396
3397 if (ncs[i]->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT ||
3398 net_hub_id_for_client(ncs[i], &id)) {
3399 continue;
3400 }
3401 name = ncs[i]->name;
3402 if (!strncmp(str, name, len)) {
3403 readline_add_completion(rs, name);
3404 }
3405 }
3406 return;
3407 }
3408 }
3409
3410 static void vm_completion(ReadLineState *rs, const char *str)
3411 {
3412 size_t len;
3413 BlockDriverState *bs = NULL;
3414
3415 len = strlen(str);
3416 readline_set_completion_index(rs, len);
3417 while ((bs = bdrv_next(bs))) {
3418 SnapshotInfoList *snapshots, *snapshot;
3419 AioContext *ctx = bdrv_get_aio_context(bs);
3420 bool ok = false;
3421
3422 aio_context_acquire(ctx);
3423 if (bdrv_can_snapshot(bs)) {
3424 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3425 }
3426 aio_context_release(ctx);
3427 if (!ok) {
3428 continue;
3429 }
3430
3431 snapshot = snapshots;
3432 while (snapshot) {
3433 char *completion = snapshot->value->name;
3434 if (!strncmp(str, completion, len)) {
3435 readline_add_completion(rs, completion);
3436 }
3437 completion = snapshot->value->id;
3438 if (!strncmp(str, completion, len)) {
3439 readline_add_completion(rs, completion);
3440 }
3441 snapshot = snapshot->next;
3442 }
3443 qapi_free_SnapshotInfoList(snapshots);
3444 }
3445
3446 }
3447
3448 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3449 {
3450 if (nb_args == 2) {
3451 vm_completion(rs, str);
3452 }
3453 }
3454
3455 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3456 {
3457 if (nb_args == 2) {
3458 vm_completion(rs, str);
3459 }
3460 }
3461
3462 static void monitor_find_completion_by_table(Monitor *mon,
3463 const mon_cmd_t *cmd_table,
3464 char **args,
3465 int nb_args)
3466 {
3467 const char *cmdname;
3468 int i;
3469 const char *ptype, *str, *name;
3470 const mon_cmd_t *cmd;
3471 BlockDriverState *bs;
3472
3473 if (nb_args <= 1) {
3474 /* command completion */
3475 if (nb_args == 0)
3476 cmdname = "";
3477 else
3478 cmdname = args[0];
3479 readline_set_completion_index(mon->rs, strlen(cmdname));
3480 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3481 cmd_completion(mon, cmdname, cmd->name);
3482 }
3483 } else {
3484 /* find the command */
3485 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3486 if (compare_cmd(args[0], cmd->name)) {
3487 break;
3488 }
3489 }
3490 if (!cmd->name) {
3491 return;
3492 }
3493
3494 if (cmd->sub_table) {
3495 /* do the job again */
3496 monitor_find_completion_by_table(mon, cmd->sub_table,
3497 &args[1], nb_args - 1);
3498 return;
3499 }
3500 if (cmd->command_completion) {
3501 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3502 return;
3503 }
3504
3505 ptype = next_arg_type(cmd->args_type);
3506 for(i = 0; i < nb_args - 2; i++) {
3507 if (*ptype != '\0') {
3508 ptype = next_arg_type(ptype);
3509 while (*ptype == '?')
3510 ptype = next_arg_type(ptype);
3511 }
3512 }
3513 str = args[nb_args - 1];
3514 while (*ptype == '-' && ptype[1] != '\0') {
3515 ptype = next_arg_type(ptype);
3516 }
3517 switch(*ptype) {
3518 case 'F':
3519 /* file completion */
3520 readline_set_completion_index(mon->rs, strlen(str));
3521 file_completion(mon, str);
3522 break;
3523 case 'B':
3524 /* block device name completion */
3525 readline_set_completion_index(mon->rs, strlen(str));
3526 for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
3527 name = bdrv_get_device_name(bs);
3528 if (str[0] == '\0' ||
3529 !strncmp(name, str, strlen(str))) {
3530 readline_add_completion(mon->rs, name);
3531 }
3532 }
3533 break;
3534 case 's':
3535 case 'S':
3536 if (!strcmp(cmd->name, "help|?")) {
3537 monitor_find_completion_by_table(mon, cmd_table,
3538 &args[1], nb_args - 1);
3539 }
3540 break;
3541 default:
3542 break;
3543 }
3544 }
3545 }
3546
3547 static void monitor_find_completion(void *opaque,
3548 const char *cmdline)
3549 {
3550 Monitor *mon = opaque;
3551 char *args[MAX_ARGS];
3552 int nb_args, len;
3553
3554 /* 1. parse the cmdline */
3555 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
3556 return;
3557 }
3558
3559 /* if the line ends with a space, it means we want to complete the
3560 next arg */
3561 len = strlen(cmdline);
3562 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3563 if (nb_args >= MAX_ARGS) {
3564 goto cleanup;
3565 }
3566 args[nb_args++] = g_strdup("");
3567 }
3568
3569 /* 2. auto complete according to args */
3570 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
3571
3572 cleanup:
3573 free_cmdline_args(args, nb_args);
3574 }
3575
3576 static int monitor_can_read(void *opaque)
3577 {
3578 Monitor *mon = opaque;
3579
3580 return (mon->suspend_cnt == 0) ? 1 : 0;
3581 }
3582
3583 static bool invalid_qmp_mode(const Monitor *mon, const mon_cmd_t *cmd,
3584 Error **errp)
3585 {
3586 bool is_cap = cmd->mhandler.cmd_new == qmp_capabilities;
3587
3588 if (is_cap && mon->qmp.in_command_mode) {
3589 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3590 "Capabilities negotiation is already complete, command "
3591 "'%s' ignored", cmd->name);
3592 return true;
3593 }
3594 if (!is_cap && !mon->qmp.in_command_mode) {
3595 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3596 "Expecting capabilities negotiation with "
3597 "'qmp_capabilities' before command '%s'", cmd->name);
3598 return true;
3599 }
3600 return false;
3601 }
3602
3603 /*
3604 * Argument validation rules:
3605 *
3606 * 1. The argument must exist in cmd_args qdict
3607 * 2. The argument type must be the expected one
3608 *
3609 * Special case: If the argument doesn't exist in cmd_args and
3610 * the QMP_ACCEPT_UNKNOWNS flag is set, then the
3611 * checking is skipped for it.
3612 */
3613 static void check_client_args_type(const QDict *client_args,
3614 const QDict *cmd_args, int flags,
3615 Error **errp)
3616 {
3617 const QDictEntry *ent;
3618
3619 for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
3620 QObject *obj;
3621 QString *arg_type;
3622 const QObject *client_arg = qdict_entry_value(ent);
3623 const char *client_arg_name = qdict_entry_key(ent);
3624
3625 obj = qdict_get(cmd_args, client_arg_name);
3626 if (!obj) {
3627 if (flags & QMP_ACCEPT_UNKNOWNS) {
3628 /* handler accepts unknowns */
3629 continue;
3630 }
3631 /* client arg doesn't exist */
3632 error_setg(errp, QERR_INVALID_PARAMETER, client_arg_name);
3633 return;
3634 }
3635
3636 arg_type = qobject_to_qstring(obj);
3637 assert(arg_type != NULL);
3638
3639 /* check if argument's type is correct */
3640 switch (qstring_get_str(arg_type)[0]) {
3641 case 'F':
3642 case 'B':
3643 case 's':
3644 if (qobject_type(client_arg) != QTYPE_QSTRING) {
3645 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3646 client_arg_name, "string");
3647 return;
3648 }
3649 break;
3650 case 'i':
3651 case 'l':
3652 case 'M':
3653 case 'o':
3654 if (qobject_type(client_arg) != QTYPE_QINT) {
3655 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3656 client_arg_name, "int");
3657 return;
3658 }
3659 break;
3660 case 'T':
3661 if (qobject_type(client_arg) != QTYPE_QINT &&
3662 qobject_type(client_arg) != QTYPE_QFLOAT) {
3663 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3664 client_arg_name, "number");
3665 return;
3666 }
3667 break;
3668 case 'b':
3669 case '-':
3670 if (qobject_type(client_arg) != QTYPE_QBOOL) {
3671 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3672 client_arg_name, "bool");
3673 return;
3674 }
3675 break;
3676 case 'O':
3677 assert(flags & QMP_ACCEPT_UNKNOWNS);
3678 break;
3679 case 'q':
3680 /* Any QObject can be passed. */
3681 break;
3682 case '/':
3683 case '.':
3684 /*
3685 * These types are not supported by QMP and thus are not
3686 * handled here. Fall through.
3687 */
3688 default:
3689 abort();
3690 }
3691 }
3692 }
3693
3694 /*
3695 * - Check if the client has passed all mandatory args
3696 * - Set special flags for argument validation
3697 */
3698 static void check_mandatory_args(const QDict *cmd_args,
3699 const QDict *client_args, int *flags,
3700 Error **errp)
3701 {
3702 const QDictEntry *ent;
3703
3704 for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
3705 const char *cmd_arg_name = qdict_entry_key(ent);
3706 QString *type = qobject_to_qstring(qdict_entry_value(ent));
3707 assert(type != NULL);
3708
3709 if (qstring_get_str(type)[0] == 'O') {
3710 assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
3711 *flags |= QMP_ACCEPT_UNKNOWNS;
3712 } else if (qstring_get_str(type)[0] != '-' &&
3713 qstring_get_str(type)[1] != '?' &&
3714 !qdict_haskey(client_args, cmd_arg_name)) {
3715 error_setg(errp, QERR_MISSING_PARAMETER, cmd_arg_name);
3716 return;
3717 }
3718 }
3719 }
3720
3721 static QDict *qdict_from_args_type(const char *args_type)
3722 {
3723 int i;
3724 QDict *qdict;
3725 QString *key, *type, *cur_qs;
3726
3727 assert(args_type != NULL);
3728
3729 qdict = qdict_new();
3730
3731 if (args_type == NULL || args_type[0] == '\0') {
3732 /* no args, empty qdict */
3733 goto out;
3734 }
3735
3736 key = qstring_new();
3737 type = qstring_new();
3738
3739 cur_qs = key;
3740
3741 for (i = 0;; i++) {
3742 switch (args_type[i]) {
3743 case ',':
3744 case '\0':
3745 qdict_put(qdict, qstring_get_str(key), type);
3746 QDECREF(key);
3747 if (args_type[i] == '\0') {
3748 goto out;
3749 }
3750 type = qstring_new(); /* qdict has ref */
3751 cur_qs = key = qstring_new();
3752 break;
3753 case ':':
3754 cur_qs = type;
3755 break;
3756 default:
3757 qstring_append_chr(cur_qs, args_type[i]);
3758 break;
3759 }
3760 }
3761
3762 out:
3763 return qdict;
3764 }
3765
3766 /*
3767 * Client argument checking rules:
3768 *
3769 * 1. Client must provide all mandatory arguments
3770 * 2. Each argument provided by the client must be expected
3771 * 3. Each argument provided by the client must have the type expected
3772 * by the command
3773 */
3774 static void qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args,
3775 Error **errp)
3776 {
3777 Error *err = NULL;
3778 int flags;
3779 QDict *cmd_args;
3780
3781 cmd_args = qdict_from_args_type(cmd->args_type);
3782
3783 flags = 0;
3784 check_mandatory_args(cmd_args, client_args, &flags, &err);
3785 if (err) {
3786 goto out;
3787 }
3788
3789 check_client_args_type(client_args, cmd_args, flags, &err);
3790
3791 out:
3792 error_propagate(errp, err);
3793 QDECREF(cmd_args);
3794 }
3795
3796 /*
3797 * Input object checking rules
3798 *
3799 * 1. Input object must be a dict
3800 * 2. The "execute" key must exist
3801 * 3. The "execute" key must be a string
3802 * 4. If the "arguments" key exists, it must be a dict
3803 * 5. If the "id" key exists, it can be anything (ie. json-value)
3804 * 6. Any argument not listed above is considered invalid
3805 */
3806 static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp)
3807 {
3808 const QDictEntry *ent;
3809 int has_exec_key = 0;
3810 QDict *input_dict;
3811
3812 if (qobject_type(input_obj) != QTYPE_QDICT) {
3813 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object");
3814 return NULL;
3815 }
3816
3817 input_dict = qobject_to_qdict(input_obj);
3818
3819 for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
3820 const char *arg_name = qdict_entry_key(ent);
3821 const QObject *arg_obj = qdict_entry_value(ent);
3822
3823 if (!strcmp(arg_name, "execute")) {
3824 if (qobject_type(arg_obj) != QTYPE_QSTRING) {
3825 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3826 "execute", "string");
3827 return NULL;
3828 }
3829 has_exec_key = 1;
3830 } else if (!strcmp(arg_name, "arguments")) {
3831 if (qobject_type(arg_obj) != QTYPE_QDICT) {
3832 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3833 "arguments", "object");
3834 return NULL;
3835 }
3836 } else if (!strcmp(arg_name, "id")) {
3837 /* Any string is acceptable as "id", so nothing to check */
3838 } else {
3839 error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name);
3840 return NULL;
3841 }
3842 }
3843
3844 if (!has_exec_key) {
3845 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute");
3846 return NULL;
3847 }
3848
3849 return input_dict;
3850 }
3851
3852 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
3853 {
3854 Error *local_err = NULL;
3855 QObject *obj, *data;
3856 QDict *input, *args;
3857 const mon_cmd_t *cmd;
3858 const char *cmd_name;
3859 Monitor *mon = cur_mon;
3860
3861 args = input = NULL;
3862 data = NULL;
3863
3864 obj = json_parser_parse(tokens, NULL);
3865 if (!obj) {
3866 // FIXME: should be triggered in json_parser_parse()
3867 error_setg(&local_err, QERR_JSON_PARSING);
3868 goto err_out;
3869 }
3870
3871 input = qmp_check_input_obj(obj, &local_err);
3872 if (!input) {
3873 qobject_decref(obj);
3874 goto err_out;
3875 }
3876
3877 mon->qmp.id = qdict_get(input, "id");
3878 qobject_incref(mon->qmp.id);
3879
3880 cmd_name = qdict_get_str(input, "execute");
3881 trace_handle_qmp_command(mon, cmd_name);
3882 cmd = qmp_find_cmd(cmd_name);
3883 if (!cmd) {
3884 error_set(&local_err, ERROR_CLASS_COMMAND_NOT_FOUND,
3885 "The command %s has not been found", cmd_name);
3886 goto err_out;
3887 }
3888 if (invalid_qmp_mode(mon, cmd, &local_err)) {
3889 goto err_out;
3890 }
3891
3892 obj = qdict_get(input, "arguments");
3893 if (!obj) {
3894 args = qdict_new();
3895 } else {
3896 args = qobject_to_qdict(obj);
3897 QINCREF(args);
3898 }
3899
3900 qmp_check_client_args(cmd, args, &local_err);
3901 if (local_err) {
3902 goto err_out;
3903 }
3904
3905 cmd->mhandler.cmd_new(args, &data, &local_err);
3906
3907 err_out:
3908 monitor_protocol_emitter(mon, data, local_err);
3909 qobject_decref(data);
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 monitor_printf(mon, "%s\n", error_get_pretty(local_err));
4152 error_free(local_err);
4153 ret = -EPERM;
4154 }
4155 if (mon->password_completion_cb)
4156 mon->password_completion_cb(mon->password_opaque, ret);
4157
4158 monitor_read_command(mon, 1);
4159 }
4160
4161 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4162 BlockCompletionFunc *completion_cb,
4163 void *opaque)
4164 {
4165 int err;
4166
4167 monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4168 bdrv_get_encrypted_filename(bs));
4169
4170 mon->password_completion_cb = completion_cb;
4171 mon->password_opaque = opaque;
4172
4173 err = monitor_read_password(mon, bdrv_password_cb, bs);
4174
4175 if (err && completion_cb)
4176 completion_cb(opaque, err);
4177
4178 return err;
4179 }
4180
4181 int monitor_read_block_device_key(Monitor *mon, const char *device,
4182 BlockCompletionFunc *completion_cb,
4183 void *opaque)
4184 {
4185 Error *err = NULL;
4186 BlockBackend *blk;
4187
4188 blk = blk_by_name(device);
4189 if (!blk) {
4190 monitor_printf(mon, "Device not found %s\n", device);
4191 return -1;
4192 }
4193 if (!blk_bs(blk)) {
4194 monitor_printf(mon, "Device '%s' has no medium\n", device);
4195 return -1;
4196 }
4197
4198 bdrv_add_key(blk_bs(blk), NULL, &err);
4199 if (err) {
4200 error_free(err);
4201 return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque);
4202 }
4203
4204 if (completion_cb) {
4205 completion_cb(opaque, 0);
4206 }
4207 return 0;
4208 }
4209
4210 QemuOptsList qemu_mon_opts = {
4211 .name = "mon",
4212 .implied_opt_name = "chardev",
4213 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4214 .desc = {
4215 {
4216 .name = "mode",
4217 .type = QEMU_OPT_STRING,
4218 },{
4219 .name = "chardev",
4220 .type = QEMU_OPT_STRING,
4221 },{
4222 .name = "default",
4223 .type = QEMU_OPT_BOOL,
4224 },{
4225 .name = "pretty",
4226 .type = QEMU_OPT_BOOL,
4227 },
4228 { /* end of list */ }
4229 },
4230 };
4231
4232 #ifndef TARGET_I386
4233 void qmp_rtc_reset_reinjection(Error **errp)
4234 {
4235 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4236 }
4237 #endif
4238
4239 #ifndef TARGET_S390X
4240 void qmp_dump_skeys(const char *filename, Error **errp)
4241 {
4242 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4243 }
4244 #endif
CRIS target port of Qemu