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hw/arm/virt: no ITS on older machine types
[qemu/kevin.git] / monitor.c
blob8728dd9fa5f9e85c585f27758776ed7a82545caf
1 /*
2 * QEMU monitor
3 *
4 * Copyright (c) 2003-2004 Fabrice Bellard
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #include "qemu/osdep.h"
25 #include <dirent.h>
26 #include "qemu-common.h"
27 #include "cpu.h"
28 #include "hw/hw.h"
29 #include "monitor/qdev.h"
30 #include "hw/usb.h"
31 #include "hw/i386/pc.h"
32 #include "hw/pci/pci.h"
33 #include "sysemu/watchdog.h"
34 #include "hw/loader.h"
35 #include "exec/gdbstub.h"
36 #include "net/net.h"
37 #include "net/slirp.h"
38 #include "sysemu/char.h"
39 #include "ui/qemu-spice.h"
40 #include "sysemu/sysemu.h"
41 #include "sysemu/numa.h"
42 #include "monitor/monitor.h"
43 #include "qemu/readline.h"
44 #include "ui/console.h"
45 #include "ui/input.h"
46 #include "sysemu/blockdev.h"
47 #include "sysemu/block-backend.h"
48 #include "audio/audio.h"
49 #include "disas/disas.h"
50 #include "sysemu/balloon.h"
51 #include "qemu/timer.h"
52 #include "migration/migration.h"
53 #include "sysemu/kvm.h"
54 #include "qemu/acl.h"
55 #include "sysemu/tpm.h"
56 #include "qapi/qmp/qerror.h"
57 #include "qapi/qmp/types.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 "cpu.h"
63 #include "trace.h"
64 #include "trace/control.h"
65 #include "monitor/hmp-target.h"
66 #ifdef CONFIG_TRACE_SIMPLE
67 #include "trace/simple.h"
68 #endif
69 #include "exec/memory.h"
70 #include "exec/exec-all.h"
71 #include "qemu/log.h"
72 #include "qmp-commands.h"
73 #include "hmp.h"
74 #include "qemu/thread.h"
75 #include "block/qapi.h"
76 #include "qapi/qmp-event.h"
77 #include "qapi-event.h"
78 #include "qmp-introspect.h"
79 #include "sysemu/block-backend.h"
80 #include "sysemu/qtest.h"
81 #include "qemu/cutils.h"
82 #include "qapi/qmp/dispatch.h"
83
84 #if defined(TARGET_S390X)
85 #include "hw/s390x/storage-keys.h"
86 #endif
87
88 /*
89 * Supported types:
90 *
91 * 'F' filename
92 * 'B' block device name
93 * 's' string (accept optional quote)
94 * 'S' it just appends the rest of the string (accept optional quote)
95 * 'O' option string of the form NAME=VALUE,...
96 * parsed according to QemuOptsList given by its name
97 * Example: 'device:O' uses qemu_device_opts.
98 * Restriction: only lists with empty desc are supported
99 * TODO lift the restriction
100 * 'i' 32 bit integer
101 * 'l' target long (32 or 64 bit)
102 * 'M' Non-negative target long (32 or 64 bit), in user mode the
103 * value is multiplied by 2^20 (think Mebibyte)
104 * 'o' octets (aka bytes)
105 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
106 * K, k suffix, which multiplies the value by 2^60 for suffixes E
107 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
108 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
109 * 'T' double
110 * user mode accepts an optional ms, us, ns suffix,
111 * which divides the value by 1e3, 1e6, 1e9, respectively
112 * '/' optional gdb-like print format (like "/10x")
113 *
114 * '?' optional type (for all types, except '/')
115 * '.' other form of optional type (for 'i' and 'l')
116 * 'b' boolean
117 * user mode accepts "on" or "off"
118 * '-' optional parameter (eg. '-f')
119 *
120 */
121
122 typedef struct mon_cmd_t {
123 const char *name;
124 const char *args_type;
125 const char *params;
126 const char *help;
127 void (*cmd)(Monitor *mon, const QDict *qdict);
128 /* @sub_table is a list of 2nd level of commands. If it does not exist,
129 * cmd should be used. If it exists, sub_table[?].cmd should be
130 * used, and cmd of 1st level plays the role of help function.
131 */
132 struct mon_cmd_t *sub_table;
133 void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
134 } mon_cmd_t;
135
136 /* file descriptors passed via SCM_RIGHTS */
137 typedef struct mon_fd_t mon_fd_t;
138 struct mon_fd_t {
139 char *name;
140 int fd;
141 QLIST_ENTRY(mon_fd_t) next;
142 };
143
144 /* file descriptor associated with a file descriptor set */
145 typedef struct MonFdsetFd MonFdsetFd;
146 struct MonFdsetFd {
147 int fd;
148 bool removed;
149 char *opaque;
150 QLIST_ENTRY(MonFdsetFd) next;
151 };
152
153 /* file descriptor set containing fds passed via SCM_RIGHTS */
154 typedef struct MonFdset MonFdset;
155 struct MonFdset {
156 int64_t id;
157 QLIST_HEAD(, MonFdsetFd) fds;
158 QLIST_HEAD(, MonFdsetFd) dup_fds;
159 QLIST_ENTRY(MonFdset) next;
160 };
161
162 typedef struct {
163 JSONMessageParser parser;
164 /*
165 * When a client connects, we're in capabilities negotiation mode.
166 * When command qmp_capabilities succeeds, we go into command
167 * mode.
168 */
169 bool in_command_mode; /* are we in command mode? */
170 } MonitorQMP;
171
172 /*
173 * To prevent flooding clients, events can be throttled. The
174 * throttling is calculated globally, rather than per-Monitor
175 * instance.
176 */
177 typedef struct MonitorQAPIEventState {
178 QAPIEvent event; /* Throttling state for this event type and... */
179 QDict *data; /* ... data, see qapi_event_throttle_equal() */
180 QEMUTimer *timer; /* Timer for handling delayed events */
181 QDict *qdict; /* Delayed event (if any) */
182 } MonitorQAPIEventState;
183
184 typedef struct {
185 int64_t rate; /* Minimum time (in ns) between two events */
186 } MonitorQAPIEventConf;
187
188 struct Monitor {
189 CharDriverState *chr;
190 int reset_seen;
191 int flags;
192 int suspend_cnt;
193 bool skip_flush;
194
195 QemuMutex out_lock;
196 QString *outbuf;
197 guint out_watch;
198
199 /* Read under either BQL or out_lock, written with BQL+out_lock. */
200 int mux_out;
201
202 ReadLineState *rs;
203 MonitorQMP qmp;
204 CPUState *mon_cpu;
205 BlockCompletionFunc *password_completion_cb;
206 void *password_opaque;
207 mon_cmd_t *cmd_table;
208 QLIST_HEAD(,mon_fd_t) fds;
209 QLIST_ENTRY(Monitor) entry;
210 };
211
212 /* QMP checker flags */
213 #define QMP_ACCEPT_UNKNOWNS 1
214
215 /* Protects mon_list, monitor_event_state. */
216 static QemuMutex monitor_lock;
217
218 static QLIST_HEAD(mon_list, Monitor) mon_list;
219 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
220 static int mon_refcount;
221
222 static mon_cmd_t mon_cmds[];
223 static mon_cmd_t info_cmds[];
224
225 Monitor *cur_mon;
226
227 static QEMUClockType event_clock_type = QEMU_CLOCK_REALTIME;
228
229 static void monitor_command_cb(void *opaque, const char *cmdline,
230 void *readline_opaque);
231
232 /**
233 * Is @mon a QMP monitor?
234 */
235 static inline bool monitor_is_qmp(const Monitor *mon)
236 {
237 return (mon->flags & MONITOR_USE_CONTROL);
238 }
239
240 /**
241 * Is the current monitor, if any, a QMP monitor?
242 */
243 bool monitor_cur_is_qmp(void)
244 {
245 return cur_mon && monitor_is_qmp(cur_mon);
246 }
247
248 void monitor_read_command(Monitor *mon, int show_prompt)
249 {
250 if (!mon->rs)
251 return;
252
253 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
254 if (show_prompt)
255 readline_show_prompt(mon->rs);
256 }
257
258 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
259 void *opaque)
260 {
261 if (mon->rs) {
262 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
263 /* prompt is printed on return from the command handler */
264 return 0;
265 } else {
266 monitor_printf(mon, "terminal does not support password prompting\n");
267 return -ENOTTY;
268 }
269 }
270
271 static void monitor_flush_locked(Monitor *mon);
272
273 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
274 void *opaque)
275 {
276 Monitor *mon = opaque;
277
278 qemu_mutex_lock(&mon->out_lock);
279 mon->out_watch = 0;
280 monitor_flush_locked(mon);
281 qemu_mutex_unlock(&mon->out_lock);
282 return FALSE;
283 }
284
285 /* Called with mon->out_lock held. */
286 static void monitor_flush_locked(Monitor *mon)
287 {
288 int rc;
289 size_t len;
290 const char *buf;
291
292 if (mon->skip_flush) {
293 return;
294 }
295
296 buf = qstring_get_str(mon->outbuf);
297 len = qstring_get_length(mon->outbuf);
298
299 if (len && !mon->mux_out) {
300 rc = qemu_chr_fe_write(mon->chr, (const uint8_t *) buf, len);
301 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
302 /* all flushed or error */
303 QDECREF(mon->outbuf);
304 mon->outbuf = qstring_new();
305 return;
306 }
307 if (rc > 0) {
308 /* partial write */
309 QString *tmp = qstring_from_str(buf + rc);
310 QDECREF(mon->outbuf);
311 mon->outbuf = tmp;
312 }
313 if (mon->out_watch == 0) {
314 mon->out_watch = qemu_chr_fe_add_watch(mon->chr, G_IO_OUT|G_IO_HUP,
315 monitor_unblocked, mon);
316 }
317 }
318 }
319
320 void monitor_flush(Monitor *mon)
321 {
322 qemu_mutex_lock(&mon->out_lock);
323 monitor_flush_locked(mon);
324 qemu_mutex_unlock(&mon->out_lock);
325 }
326
327 /* flush at every end of line */
328 static void monitor_puts(Monitor *mon, const char *str)
329 {
330 char c;
331
332 qemu_mutex_lock(&mon->out_lock);
333 for(;;) {
334 c = *str++;
335 if (c == '\0')
336 break;
337 if (c == '\n') {
338 qstring_append_chr(mon->outbuf, '\r');
339 }
340 qstring_append_chr(mon->outbuf, c);
341 if (c == '\n') {
342 monitor_flush_locked(mon);
343 }
344 }
345 qemu_mutex_unlock(&mon->out_lock);
346 }
347
348 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
349 {
350 char *buf;
351
352 if (!mon)
353 return;
354
355 if (monitor_is_qmp(mon)) {
356 return;
357 }
358
359 buf = g_strdup_vprintf(fmt, ap);
360 monitor_puts(mon, buf);
361 g_free(buf);
362 }
363
364 void monitor_printf(Monitor *mon, const char *fmt, ...)
365 {
366 va_list ap;
367 va_start(ap, fmt);
368 monitor_vprintf(mon, fmt, ap);
369 va_end(ap);
370 }
371
372 int monitor_fprintf(FILE *stream, const char *fmt, ...)
373 {
374 va_list ap;
375 va_start(ap, fmt);
376 monitor_vprintf((Monitor *)stream, fmt, ap);
377 va_end(ap);
378 return 0;
379 }
380
381 static void monitor_json_emitter(Monitor *mon, const QObject *data)
382 {
383 QString *json;
384
385 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
386 qobject_to_json(data);
387 assert(json != NULL);
388
389 qstring_append_chr(json, '\n');
390 monitor_puts(mon, qstring_get_str(json));
391
392 QDECREF(json);
393 }
394
395 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
396 /* Limit guest-triggerable events to 1 per second */
397 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
398 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
399 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
400 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
401 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
402 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
403 };
404
405 GHashTable *monitor_qapi_event_state;
406
407 /*
408 * Emits the event to every monitor instance, @event is only used for trace
409 * Called with monitor_lock held.
410 */
411 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
412 {
413 Monitor *mon;
414
415 trace_monitor_protocol_event_emit(event, qdict);
416 QLIST_FOREACH(mon, &mon_list, entry) {
417 if (monitor_is_qmp(mon) && mon->qmp.in_command_mode) {
418 monitor_json_emitter(mon, QOBJECT(qdict));
419 }
420 }
421 }
422
423 static void monitor_qapi_event_handler(void *opaque);
424
425 /*
426 * Queue a new event for emission to Monitor instances,
427 * applying any rate limiting if required.
428 */
429 static void
430 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp)
431 {
432 MonitorQAPIEventConf *evconf;
433 MonitorQAPIEventState *evstate;
434
435 assert(event < QAPI_EVENT__MAX);
436 evconf = &monitor_qapi_event_conf[event];
437 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
438
439 qemu_mutex_lock(&monitor_lock);
440
441 if (!evconf->rate) {
442 /* Unthrottled event */
443 monitor_qapi_event_emit(event, qdict);
444 } else {
445 QDict *data = qobject_to_qdict(qdict_get(qdict, "data"));
446 MonitorQAPIEventState key = { .event = event, .data = data };
447
448 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
449 assert(!evstate || timer_pending(evstate->timer));
450
451 if (evstate) {
452 /*
453 * Timer is pending for (at least) evconf->rate ns after
454 * last send. Store event for sending when timer fires,
455 * replacing a prior stored event if any.
456 */
457 QDECREF(evstate->qdict);
458 evstate->qdict = qdict;
459 QINCREF(evstate->qdict);
460 } else {
461 /*
462 * Last send was (at least) evconf->rate ns ago.
463 * Send immediately, and arm the timer to call
464 * monitor_qapi_event_handler() in evconf->rate ns. Any
465 * events arriving before then will be delayed until then.
466 */
467 int64_t now = qemu_clock_get_ns(event_clock_type);
468
469 monitor_qapi_event_emit(event, qdict);
470
471 evstate = g_new(MonitorQAPIEventState, 1);
472 evstate->event = event;
473 evstate->data = data;
474 QINCREF(evstate->data);
475 evstate->qdict = NULL;
476 evstate->timer = timer_new_ns(event_clock_type,
477 monitor_qapi_event_handler,
478 evstate);
479 g_hash_table_add(monitor_qapi_event_state, evstate);
480 timer_mod_ns(evstate->timer, now + evconf->rate);
481 }
482 }
483
484 qemu_mutex_unlock(&monitor_lock);
485 }
486
487 /*
488 * This function runs evconf->rate ns after sending a throttled
489 * event.
490 * If another event has since been stored, send it.
491 */
492 static void monitor_qapi_event_handler(void *opaque)
493 {
494 MonitorQAPIEventState *evstate = opaque;
495 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
496
497 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
498 qemu_mutex_lock(&monitor_lock);
499
500 if (evstate->qdict) {
501 int64_t now = qemu_clock_get_ns(event_clock_type);
502
503 monitor_qapi_event_emit(evstate->event, evstate->qdict);
504 QDECREF(evstate->qdict);
505 evstate->qdict = NULL;
506 timer_mod_ns(evstate->timer, now + evconf->rate);
507 } else {
508 g_hash_table_remove(monitor_qapi_event_state, evstate);
509 QDECREF(evstate->data);
510 timer_free(evstate->timer);
511 g_free(evstate);
512 }
513
514 qemu_mutex_unlock(&monitor_lock);
515 }
516
517 static unsigned int qapi_event_throttle_hash(const void *key)
518 {
519 const MonitorQAPIEventState *evstate = key;
520 unsigned int hash = evstate->event * 255;
521
522 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
523 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
524 }
525
526 if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
527 hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
528 }
529
530 return hash;
531 }
532
533 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
534 {
535 const MonitorQAPIEventState *eva = a;
536 const MonitorQAPIEventState *evb = b;
537
538 if (eva->event != evb->event) {
539 return FALSE;
540 }
541
542 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
543 return !strcmp(qdict_get_str(eva->data, "id"),
544 qdict_get_str(evb->data, "id"));
545 }
546
547 if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
548 return !strcmp(qdict_get_str(eva->data, "node-name"),
549 qdict_get_str(evb->data, "node-name"));
550 }
551
552 return TRUE;
553 }
554
555 static void monitor_qapi_event_init(void)
556 {
557 if (qtest_enabled()) {
558 event_clock_type = QEMU_CLOCK_VIRTUAL;
559 }
560
561 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
562 qapi_event_throttle_equal);
563 qmp_event_set_func_emit(monitor_qapi_event_queue);
564 }
565
566 void qmp_qmp_capabilities(Error **errp)
567 {
568 cur_mon->qmp.in_command_mode = true;
569 }
570
571 static void handle_hmp_command(Monitor *mon, const char *cmdline);
572
573 static void monitor_data_init(Monitor *mon)
574 {
575 memset(mon, 0, sizeof(Monitor));
576 qemu_mutex_init(&mon->out_lock);
577 mon->outbuf = qstring_new();
578 /* Use *mon_cmds by default. */
579 mon->cmd_table = mon_cmds;
580 }
581
582 static void monitor_data_destroy(Monitor *mon)
583 {
584 if (mon->chr) {
585 qemu_chr_add_handlers(mon->chr, NULL, NULL, NULL, NULL);
586 }
587 if (monitor_is_qmp(mon)) {
588 json_message_parser_destroy(&mon->qmp.parser);
589 }
590 g_free(mon->rs);
591 QDECREF(mon->outbuf);
592 qemu_mutex_destroy(&mon->out_lock);
593 }
594
595 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
596 int64_t cpu_index, Error **errp)
597 {
598 char *output = NULL;
599 Monitor *old_mon, hmp;
600
601 monitor_data_init(&hmp);
602 hmp.skip_flush = true;
603
604 old_mon = cur_mon;
605 cur_mon = &hmp;
606
607 if (has_cpu_index) {
608 int ret = monitor_set_cpu(cpu_index);
609 if (ret < 0) {
610 cur_mon = old_mon;
611 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
612 "a CPU number");
613 goto out;
614 }
615 }
616
617 handle_hmp_command(&hmp, command_line);
618 cur_mon = old_mon;
619
620 qemu_mutex_lock(&hmp.out_lock);
621 if (qstring_get_length(hmp.outbuf) > 0) {
622 output = g_strdup(qstring_get_str(hmp.outbuf));
623 } else {
624 output = g_strdup("");
625 }
626 qemu_mutex_unlock(&hmp.out_lock);
627
628 out:
629 monitor_data_destroy(&hmp);
630 return output;
631 }
632
633 static int compare_cmd(const char *name, const char *list)
634 {
635 const char *p, *pstart;
636 int len;
637 len = strlen(name);
638 p = list;
639 for(;;) {
640 pstart = p;
641 p = strchr(p, '|');
642 if (!p)
643 p = pstart + strlen(pstart);
644 if ((p - pstart) == len && !memcmp(pstart, name, len))
645 return 1;
646 if (*p == '\0')
647 break;
648 p++;
649 }
650 return 0;
651 }
652
653 static int get_str(char *buf, int buf_size, const char **pp)
654 {
655 const char *p;
656 char *q;
657 int c;
658
659 q = buf;
660 p = *pp;
661 while (qemu_isspace(*p)) {
662 p++;
663 }
664 if (*p == '\0') {
665 fail:
666 *q = '\0';
667 *pp = p;
668 return -1;
669 }
670 if (*p == '\"') {
671 p++;
672 while (*p != '\0' && *p != '\"') {
673 if (*p == '\\') {
674 p++;
675 c = *p++;
676 switch (c) {
677 case 'n':
678 c = '\n';
679 break;
680 case 'r':
681 c = '\r';
682 break;
683 case '\\':
684 case '\'':
685 case '\"':
686 break;
687 default:
688 printf("unsupported escape code: '\\%c'\n", c);
689 goto fail;
690 }
691 if ((q - buf) < buf_size - 1) {
692 *q++ = c;
693 }
694 } else {
695 if ((q - buf) < buf_size - 1) {
696 *q++ = *p;
697 }
698 p++;
699 }
700 }
701 if (*p != '\"') {
702 printf("unterminated string\n");
703 goto fail;
704 }
705 p++;
706 } else {
707 while (*p != '\0' && !qemu_isspace(*p)) {
708 if ((q - buf) < buf_size - 1) {
709 *q++ = *p;
710 }
711 p++;
712 }
713 }
714 *q = '\0';
715 *pp = p;
716 return 0;
717 }
718
719 #define MAX_ARGS 16
720
721 static void free_cmdline_args(char **args, int nb_args)
722 {
723 int i;
724
725 assert(nb_args <= MAX_ARGS);
726
727 for (i = 0; i < nb_args; i++) {
728 g_free(args[i]);
729 }
730
731 }
732
733 /*
734 * Parse the command line to get valid args.
735 * @cmdline: command line to be parsed.
736 * @pnb_args: location to store the number of args, must NOT be NULL.
737 * @args: location to store the args, which should be freed by caller, must
738 * NOT be NULL.
739 *
740 * Returns 0 on success, negative on failure.
741 *
742 * NOTE: this parser is an approximate form of the real command parser. Number
743 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
744 * return with failure.
745 */
746 static int parse_cmdline(const char *cmdline,
747 int *pnb_args, char **args)
748 {
749 const char *p;
750 int nb_args, ret;
751 char buf[1024];
752
753 p = cmdline;
754 nb_args = 0;
755 for (;;) {
756 while (qemu_isspace(*p)) {
757 p++;
758 }
759 if (*p == '\0') {
760 break;
761 }
762 if (nb_args >= MAX_ARGS) {
763 goto fail;
764 }
765 ret = get_str(buf, sizeof(buf), &p);
766 if (ret < 0) {
767 goto fail;
768 }
769 args[nb_args] = g_strdup(buf);
770 nb_args++;
771 }
772 *pnb_args = nb_args;
773 return 0;
774
775 fail:
776 free_cmdline_args(args, nb_args);
777 return -1;
778 }
779
780 static void help_cmd_dump_one(Monitor *mon,
781 const mon_cmd_t *cmd,
782 char **prefix_args,
783 int prefix_args_nb)
784 {
785 int i;
786
787 for (i = 0; i < prefix_args_nb; i++) {
788 monitor_printf(mon, "%s ", prefix_args[i]);
789 }
790 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
791 }
792
793 /* @args[@arg_index] is the valid command need to find in @cmds */
794 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
795 char **args, int nb_args, int arg_index)
796 {
797 const mon_cmd_t *cmd;
798
799 /* No valid arg need to compare with, dump all in *cmds */
800 if (arg_index >= nb_args) {
801 for (cmd = cmds; cmd->name != NULL; cmd++) {
802 help_cmd_dump_one(mon, cmd, args, arg_index);
803 }
804 return;
805 }
806
807 /* Find one entry to dump */
808 for (cmd = cmds; cmd->name != NULL; cmd++) {
809 if (compare_cmd(args[arg_index], cmd->name)) {
810 if (cmd->sub_table) {
811 /* continue with next arg */
812 help_cmd_dump(mon, cmd->sub_table,
813 args, nb_args, arg_index + 1);
814 } else {
815 help_cmd_dump_one(mon, cmd, args, arg_index);
816 }
817 break;
818 }
819 }
820 }
821
822 static void help_cmd(Monitor *mon, const char *name)
823 {
824 char *args[MAX_ARGS];
825 int nb_args = 0;
826
827 /* 1. parse user input */
828 if (name) {
829 /* special case for log, directly dump and return */
830 if (!strcmp(name, "log")) {
831 const QEMULogItem *item;
832 monitor_printf(mon, "Log items (comma separated):\n");
833 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
834 for (item = qemu_log_items; item->mask != 0; item++) {
835 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
836 }
837 return;
838 }
839
840 if (parse_cmdline(name, &nb_args, args) < 0) {
841 return;
842 }
843 }
844
845 /* 2. dump the contents according to parsed args */
846 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
847
848 free_cmdline_args(args, nb_args);
849 }
850
851 static void do_help_cmd(Monitor *mon, const QDict *qdict)
852 {
853 help_cmd(mon, qdict_get_try_str(qdict, "name"));
854 }
855
856 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
857 {
858 const char *tp_name = qdict_get_str(qdict, "name");
859 bool new_state = qdict_get_bool(qdict, "option");
860 bool has_vcpu = qdict_haskey(qdict, "vcpu");
861 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
862 Error *local_err = NULL;
863
864 if (vcpu < 0) {
865 monitor_printf(mon, "argument vcpu must be positive");
866 return;
867 }
868
869 qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
870 if (local_err) {
871 error_report_err(local_err);
872 }
873 }
874
875 #ifdef CONFIG_TRACE_SIMPLE
876 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
877 {
878 const char *op = qdict_get_try_str(qdict, "op");
879 const char *arg = qdict_get_try_str(qdict, "arg");
880
881 if (!op) {
882 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
883 } else if (!strcmp(op, "on")) {
884 st_set_trace_file_enabled(true);
885 } else if (!strcmp(op, "off")) {
886 st_set_trace_file_enabled(false);
887 } else if (!strcmp(op, "flush")) {
888 st_flush_trace_buffer();
889 } else if (!strcmp(op, "set")) {
890 if (arg) {
891 st_set_trace_file(arg);
892 }
893 } else {
894 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
895 help_cmd(mon, "trace-file");
896 }
897 }
898 #endif
899
900 static void hmp_info_help(Monitor *mon, const QDict *qdict)
901 {
902 help_cmd(mon, "info");
903 }
904
905 static void query_commands_cb(QmpCommand *cmd, void *opaque)
906 {
907 CommandInfoList *info, **list = opaque;
908
909 if (!cmd->enabled) {
910 return;
911 }
912
913 info = g_malloc0(sizeof(*info));
914 info->value = g_malloc0(sizeof(*info->value));
915 info->value->name = g_strdup(cmd->name);
916 info->next = *list;
917 *list = info;
918 }
919
920 CommandInfoList *qmp_query_commands(Error **errp)
921 {
922 CommandInfoList *list = NULL;
923
924 qmp_for_each_command(query_commands_cb, &list);
925
926 return list;
927 }
928
929 EventInfoList *qmp_query_events(Error **errp)
930 {
931 EventInfoList *info, *ev_list = NULL;
932 QAPIEvent e;
933
934 for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
935 const char *event_name = QAPIEvent_lookup[e];
936 assert(event_name != NULL);
937 info = g_malloc0(sizeof(*info));
938 info->value = g_malloc0(sizeof(*info->value));
939 info->value->name = g_strdup(event_name);
940
941 info->next = ev_list;
942 ev_list = info;
943 }
944
945 return ev_list;
946 }
947
948 /*
949 * Minor hack: generated marshalling suppressed for this command
950 * ('gen': false in the schema) so we can parse the JSON string
951 * directly into QObject instead of first parsing it with
952 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
953 * to QObject with generated output marshallers, every time. Instead,
954 * we do it in test-qmp-input-visitor.c, just to make sure
955 * qapi-introspect.py's output actually conforms to the schema.
956 */
957 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
958 Error **errp)
959 {
960 *ret_data = qobject_from_json(qmp_schema_json);
961 }
962
963 /*
964 * We used to define commands in qmp-commands.hx in addition to the
965 * QAPI schema. This permitted defining some of them only in certain
966 * configurations. query-commands has always reflected that (good,
967 * because it lets QMP clients figure out what's actually available),
968 * while query-qmp-schema never did (not so good). This function is a
969 * hack to keep the configuration-specific commands defined exactly as
970 * before, even though qmp-commands.hx is gone.
971 *
972 * FIXME Educate the QAPI schema on configuration-specific commands,
973 * and drop this hack.
974 */
975 static void qmp_unregister_commands_hack(void)
976 {
977 #ifndef CONFIG_SPICE
978 qmp_unregister_command("query-spice");
979 #endif
980 #ifndef TARGET_I386
981 qmp_unregister_command("rtc-reset-reinjection");
982 #endif
983 #ifndef TARGET_S390X
984 qmp_unregister_command("dump-skeys");
985 #endif
986 #ifndef TARGET_ARM
987 qmp_unregister_command("query-gic-capabilities");
988 #endif
989 #if !defined(TARGET_S390X)
990 qmp_unregister_command("query-cpu-model-expansion");
991 qmp_unregister_command("query-cpu-model-baseline");
992 qmp_unregister_command("query-cpu-model-comparison");
993 #endif
994 #if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
995 && !defined(TARGET_S390X)
996 qmp_unregister_command("query-cpu-definitions");
997 #endif
998 }
999
1000 static void qmp_init_marshal(void)
1001 {
1002 qmp_register_command("query-qmp-schema", qmp_query_qmp_schema,
1003 QCO_NO_OPTIONS);
1004 qmp_register_command("device_add", qmp_device_add,
1005 QCO_NO_OPTIONS);
1006 qmp_register_command("netdev_add", qmp_netdev_add,
1007 QCO_NO_OPTIONS);
1008
1009 /* call it after the rest of qapi_init() */
1010 register_module_init(qmp_unregister_commands_hack, MODULE_INIT_QAPI);
1011 }
1012
1013 qapi_init(qmp_init_marshal);
1014
1015 /* set the current CPU defined by the user */
1016 int monitor_set_cpu(int cpu_index)
1017 {
1018 CPUState *cpu;
1019
1020 cpu = qemu_get_cpu(cpu_index);
1021 if (cpu == NULL) {
1022 return -1;
1023 }
1024 cur_mon->mon_cpu = cpu;
1025 return 0;
1026 }
1027
1028 CPUState *mon_get_cpu(void)
1029 {
1030 if (!cur_mon->mon_cpu) {
1031 monitor_set_cpu(first_cpu->cpu_index);
1032 }
1033 cpu_synchronize_state(cur_mon->mon_cpu);
1034 return cur_mon->mon_cpu;
1035 }
1036
1037 CPUArchState *mon_get_cpu_env(void)
1038 {
1039 return mon_get_cpu()->env_ptr;
1040 }
1041
1042 int monitor_get_cpu_index(void)
1043 {
1044 return mon_get_cpu()->cpu_index;
1045 }
1046
1047 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1048 {
1049 cpu_dump_state(mon_get_cpu(), (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1050 }
1051
1052 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1053 {
1054 dump_exec_info((FILE *)mon, monitor_fprintf);
1055 dump_drift_info((FILE *)mon, monitor_fprintf);
1056 }
1057
1058 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1059 {
1060 dump_opcount_info((FILE *)mon, monitor_fprintf);
1061 }
1062
1063 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1064 {
1065 int i;
1066 const char *str;
1067
1068 if (!mon->rs)
1069 return;
1070 i = 0;
1071 for(;;) {
1072 str = readline_get_history(mon->rs, i);
1073 if (!str)
1074 break;
1075 monitor_printf(mon, "%d: '%s'\n", i, str);
1076 i++;
1077 }
1078 }
1079
1080 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1081 {
1082 cpu_dump_statistics(mon_get_cpu(), (FILE *)mon, &monitor_fprintf, 0);
1083 }
1084
1085 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1086 {
1087 const char *name = qdict_get_try_str(qdict, "name");
1088 bool has_vcpu = qdict_haskey(qdict, "vcpu");
1089 int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
1090 TraceEventInfoList *events;
1091 TraceEventInfoList *elem;
1092 Error *local_err = NULL;
1093
1094 if (name == NULL) {
1095 name = "*";
1096 }
1097 if (vcpu < 0) {
1098 monitor_printf(mon, "argument vcpu must be positive");
1099 return;
1100 }
1101
1102 events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
1103 if (local_err) {
1104 error_report_err(local_err);
1105 return;
1106 }
1107
1108 for (elem = events; elem != NULL; elem = elem->next) {
1109 monitor_printf(mon, "%s : state %u\n",
1110 elem->value->name,
1111 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1112 }
1113 qapi_free_TraceEventInfoList(events);
1114 }
1115
1116 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1117 bool has_port, int64_t port,
1118 bool has_tls_port, int64_t tls_port,
1119 bool has_cert_subject, const char *cert_subject,
1120 Error **errp)
1121 {
1122 if (strcmp(protocol, "spice") == 0) {
1123 if (!qemu_using_spice(errp)) {
1124 return;
1125 }
1126
1127 if (!has_port && !has_tls_port) {
1128 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1129 return;
1130 }
1131
1132 if (qemu_spice_migrate_info(hostname,
1133 has_port ? port : -1,
1134 has_tls_port ? tls_port : -1,
1135 cert_subject)) {
1136 error_setg(errp, QERR_UNDEFINED_ERROR);
1137 return;
1138 }
1139 return;
1140 }
1141
1142 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1143 }
1144
1145 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1146 {
1147 Error *err = NULL;
1148
1149 qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
1150 if (err) {
1151 error_report_err(err);
1152 }
1153 }
1154
1155 static void hmp_log(Monitor *mon, const QDict *qdict)
1156 {
1157 int mask;
1158 const char *items = qdict_get_str(qdict, "items");
1159
1160 if (!strcmp(items, "none")) {
1161 mask = 0;
1162 } else {
1163 mask = qemu_str_to_log_mask(items);
1164 if (!mask) {
1165 help_cmd(mon, "log");
1166 return;
1167 }
1168 }
1169 qemu_set_log(mask);
1170 }
1171
1172 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1173 {
1174 const char *option = qdict_get_try_str(qdict, "option");
1175 if (!option || !strcmp(option, "on")) {
1176 singlestep = 1;
1177 } else if (!strcmp(option, "off")) {
1178 singlestep = 0;
1179 } else {
1180 monitor_printf(mon, "unexpected option %s\n", option);
1181 }
1182 }
1183
1184 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1185 {
1186 const char *device = qdict_get_try_str(qdict, "device");
1187 if (!device)
1188 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1189 if (gdbserver_start(device) < 0) {
1190 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1191 device);
1192 } else if (strcmp(device, "none") == 0) {
1193 monitor_printf(mon, "Disabled gdbserver\n");
1194 } else {
1195 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1196 device);
1197 }
1198 }
1199
1200 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1201 {
1202 const char *action = qdict_get_str(qdict, "action");
1203 if (select_watchdog_action(action) == -1) {
1204 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1205 }
1206 }
1207
1208 static void monitor_printc(Monitor *mon, int c)
1209 {
1210 monitor_printf(mon, "'");
1211 switch(c) {
1212 case '\'':
1213 monitor_printf(mon, "\\'");
1214 break;
1215 case '\\':
1216 monitor_printf(mon, "\\\\");
1217 break;
1218 case '\n':
1219 monitor_printf(mon, "\\n");
1220 break;
1221 case '\r':
1222 monitor_printf(mon, "\\r");
1223 break;
1224 default:
1225 if (c >= 32 && c <= 126) {
1226 monitor_printf(mon, "%c", c);
1227 } else {
1228 monitor_printf(mon, "\\x%02x", c);
1229 }
1230 break;
1231 }
1232 monitor_printf(mon, "'");
1233 }
1234
1235 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1236 hwaddr addr, int is_physical)
1237 {
1238 int l, line_size, i, max_digits, len;
1239 uint8_t buf[16];
1240 uint64_t v;
1241
1242 if (format == 'i') {
1243 int flags = 0;
1244 #ifdef TARGET_I386
1245 CPUArchState *env = mon_get_cpu_env();
1246 if (wsize == 2) {
1247 flags = 1;
1248 } else if (wsize == 4) {
1249 flags = 0;
1250 } else {
1251 /* as default we use the current CS size */
1252 flags = 0;
1253 if (env) {
1254 #ifdef TARGET_X86_64
1255 if ((env->efer & MSR_EFER_LMA) &&
1256 (env->segs[R_CS].flags & DESC_L_MASK))
1257 flags = 2;
1258 else
1259 #endif
1260 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1261 flags = 1;
1262 }
1263 }
1264 #endif
1265 #ifdef TARGET_PPC
1266 CPUArchState *env = mon_get_cpu_env();
1267 flags = msr_le << 16;
1268 flags |= env->bfd_mach;
1269 #endif
1270 monitor_disas(mon, mon_get_cpu(), addr, count, is_physical, flags);
1271 return;
1272 }
1273
1274 len = wsize * count;
1275 if (wsize == 1)
1276 line_size = 8;
1277 else
1278 line_size = 16;
1279 max_digits = 0;
1280
1281 switch(format) {
1282 case 'o':
1283 max_digits = (wsize * 8 + 2) / 3;
1284 break;
1285 default:
1286 case 'x':
1287 max_digits = (wsize * 8) / 4;
1288 break;
1289 case 'u':
1290 case 'd':
1291 max_digits = (wsize * 8 * 10 + 32) / 33;
1292 break;
1293 case 'c':
1294 wsize = 1;
1295 break;
1296 }
1297
1298 while (len > 0) {
1299 if (is_physical)
1300 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1301 else
1302 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1303 l = len;
1304 if (l > line_size)
1305 l = line_size;
1306 if (is_physical) {
1307 cpu_physical_memory_read(addr, buf, l);
1308 } else {
1309 if (cpu_memory_rw_debug(mon_get_cpu(), addr, buf, l, 0) < 0) {
1310 monitor_printf(mon, " Cannot access memory\n");
1311 break;
1312 }
1313 }
1314 i = 0;
1315 while (i < l) {
1316 switch(wsize) {
1317 default:
1318 case 1:
1319 v = ldub_p(buf + i);
1320 break;
1321 case 2:
1322 v = lduw_p(buf + i);
1323 break;
1324 case 4:
1325 v = (uint32_t)ldl_p(buf + i);
1326 break;
1327 case 8:
1328 v = ldq_p(buf + i);
1329 break;
1330 }
1331 monitor_printf(mon, " ");
1332 switch(format) {
1333 case 'o':
1334 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1335 break;
1336 case 'x':
1337 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1338 break;
1339 case 'u':
1340 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1341 break;
1342 case 'd':
1343 monitor_printf(mon, "%*" PRId64, max_digits, v);
1344 break;
1345 case 'c':
1346 monitor_printc(mon, v);
1347 break;
1348 }
1349 i += wsize;
1350 }
1351 monitor_printf(mon, "\n");
1352 addr += l;
1353 len -= l;
1354 }
1355 }
1356
1357 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1358 {
1359 int count = qdict_get_int(qdict, "count");
1360 int format = qdict_get_int(qdict, "format");
1361 int size = qdict_get_int(qdict, "size");
1362 target_long addr = qdict_get_int(qdict, "addr");
1363
1364 memory_dump(mon, count, format, size, addr, 0);
1365 }
1366
1367 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1368 {
1369 int count = qdict_get_int(qdict, "count");
1370 int format = qdict_get_int(qdict, "format");
1371 int size = qdict_get_int(qdict, "size");
1372 hwaddr addr = qdict_get_int(qdict, "addr");
1373
1374 memory_dump(mon, count, format, size, addr, 1);
1375 }
1376
1377 static void do_print(Monitor *mon, const QDict *qdict)
1378 {
1379 int format = qdict_get_int(qdict, "format");
1380 hwaddr val = qdict_get_int(qdict, "val");
1381
1382 switch(format) {
1383 case 'o':
1384 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1385 break;
1386 case 'x':
1387 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1388 break;
1389 case 'u':
1390 monitor_printf(mon, "%" HWADDR_PRIu, val);
1391 break;
1392 default:
1393 case 'd':
1394 monitor_printf(mon, "%" HWADDR_PRId, val);
1395 break;
1396 case 'c':
1397 monitor_printc(mon, val);
1398 break;
1399 }
1400 monitor_printf(mon, "\n");
1401 }
1402
1403 static void hmp_sum(Monitor *mon, const QDict *qdict)
1404 {
1405 uint32_t addr;
1406 uint16_t sum;
1407 uint32_t start = qdict_get_int(qdict, "start");
1408 uint32_t size = qdict_get_int(qdict, "size");
1409
1410 sum = 0;
1411 for(addr = start; addr < (start + size); addr++) {
1412 uint8_t val = address_space_ldub(&address_space_memory, addr,
1413 MEMTXATTRS_UNSPECIFIED, NULL);
1414 /* BSD sum algorithm ('sum' Unix command) */
1415 sum = (sum >> 1) | (sum << 15);
1416 sum += val;
1417 }
1418 monitor_printf(mon, "%05d\n", sum);
1419 }
1420
1421 static int mouse_button_state;
1422
1423 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1424 {
1425 int dx, dy, dz, button;
1426 const char *dx_str = qdict_get_str(qdict, "dx_str");
1427 const char *dy_str = qdict_get_str(qdict, "dy_str");
1428 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1429
1430 dx = strtol(dx_str, NULL, 0);
1431 dy = strtol(dy_str, NULL, 0);
1432 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1433 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1434
1435 if (dz_str) {
1436 dz = strtol(dz_str, NULL, 0);
1437 if (dz != 0) {
1438 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1439 qemu_input_queue_btn(NULL, button, true);
1440 qemu_input_event_sync();
1441 qemu_input_queue_btn(NULL, button, false);
1442 }
1443 }
1444 qemu_input_event_sync();
1445 }
1446
1447 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1448 {
1449 static uint32_t bmap[INPUT_BUTTON__MAX] = {
1450 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1451 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1452 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1453 };
1454 int button_state = qdict_get_int(qdict, "button_state");
1455
1456 if (mouse_button_state == button_state) {
1457 return;
1458 }
1459 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1460 qemu_input_event_sync();
1461 mouse_button_state = button_state;
1462 }
1463
1464 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1465 {
1466 int size = qdict_get_int(qdict, "size");
1467 int addr = qdict_get_int(qdict, "addr");
1468 int has_index = qdict_haskey(qdict, "index");
1469 uint32_t val;
1470 int suffix;
1471
1472 if (has_index) {
1473 int index = qdict_get_int(qdict, "index");
1474 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1475 addr++;
1476 }
1477 addr &= 0xffff;
1478
1479 switch(size) {
1480 default:
1481 case 1:
1482 val = cpu_inb(addr);
1483 suffix = 'b';
1484 break;
1485 case 2:
1486 val = cpu_inw(addr);
1487 suffix = 'w';
1488 break;
1489 case 4:
1490 val = cpu_inl(addr);
1491 suffix = 'l';
1492 break;
1493 }
1494 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1495 suffix, addr, size * 2, val);
1496 }
1497
1498 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1499 {
1500 int size = qdict_get_int(qdict, "size");
1501 int addr = qdict_get_int(qdict, "addr");
1502 int val = qdict_get_int(qdict, "val");
1503
1504 addr &= IOPORTS_MASK;
1505
1506 switch (size) {
1507 default:
1508 case 1:
1509 cpu_outb(addr, val);
1510 break;
1511 case 2:
1512 cpu_outw(addr, val);
1513 break;
1514 case 4:
1515 cpu_outl(addr, val);
1516 break;
1517 }
1518 }
1519
1520 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1521 {
1522 Error *local_err = NULL;
1523 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1524
1525 qemu_boot_set(bootdevice, &local_err);
1526 if (local_err) {
1527 error_report_err(local_err);
1528 } else {
1529 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1530 }
1531 }
1532
1533 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1534 {
1535 mtree_info((fprintf_function)monitor_printf, mon);
1536 }
1537
1538 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1539 {
1540 int i;
1541 CPUState *cpu;
1542 uint64_t *node_mem;
1543
1544 node_mem = g_new0(uint64_t, nb_numa_nodes);
1545 query_numa_node_mem(node_mem);
1546 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1547 for (i = 0; i < nb_numa_nodes; i++) {
1548 monitor_printf(mon, "node %d cpus:", i);
1549 CPU_FOREACH(cpu) {
1550 if (cpu->numa_node == i) {
1551 monitor_printf(mon, " %d", cpu->cpu_index);
1552 }
1553 }
1554 monitor_printf(mon, "\n");
1555 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1556 node_mem[i] >> 20);
1557 }
1558 g_free(node_mem);
1559 }
1560
1561 #ifdef CONFIG_PROFILER
1562
1563 int64_t tcg_time;
1564 int64_t dev_time;
1565
1566 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1567 {
1568 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1569 dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
1570 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1571 tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND);
1572 tcg_time = 0;
1573 dev_time = 0;
1574 }
1575 #else
1576 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1577 {
1578 monitor_printf(mon, "Internal profiler not compiled\n");
1579 }
1580 #endif
1581
1582 /* Capture support */
1583 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1584
1585 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
1586 {
1587 int i;
1588 CaptureState *s;
1589
1590 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1591 monitor_printf(mon, "[%d]: ", i);
1592 s->ops.info (s->opaque);
1593 }
1594 }
1595
1596 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
1597 {
1598 int i;
1599 int n = qdict_get_int(qdict, "n");
1600 CaptureState *s;
1601
1602 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1603 if (i == n) {
1604 s->ops.destroy (s->opaque);
1605 QLIST_REMOVE (s, entries);
1606 g_free (s);
1607 return;
1608 }
1609 }
1610 }
1611
1612 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
1613 {
1614 const char *path = qdict_get_str(qdict, "path");
1615 int has_freq = qdict_haskey(qdict, "freq");
1616 int freq = qdict_get_try_int(qdict, "freq", -1);
1617 int has_bits = qdict_haskey(qdict, "bits");
1618 int bits = qdict_get_try_int(qdict, "bits", -1);
1619 int has_channels = qdict_haskey(qdict, "nchannels");
1620 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
1621 CaptureState *s;
1622
1623 s = g_malloc0 (sizeof (*s));
1624
1625 freq = has_freq ? freq : 44100;
1626 bits = has_bits ? bits : 16;
1627 nchannels = has_channels ? nchannels : 2;
1628
1629 if (wav_start_capture (s, path, freq, bits, nchannels)) {
1630 monitor_printf(mon, "Failed to add wave capture\n");
1631 g_free (s);
1632 return;
1633 }
1634 QLIST_INSERT_HEAD (&capture_head, s, entries);
1635 }
1636
1637 static qemu_acl *find_acl(Monitor *mon, const char *name)
1638 {
1639 qemu_acl *acl = qemu_acl_find(name);
1640
1641 if (!acl) {
1642 monitor_printf(mon, "acl: unknown list '%s'\n", name);
1643 }
1644 return acl;
1645 }
1646
1647 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
1648 {
1649 const char *aclname = qdict_get_str(qdict, "aclname");
1650 qemu_acl *acl = find_acl(mon, aclname);
1651 qemu_acl_entry *entry;
1652 int i = 0;
1653
1654 if (acl) {
1655 monitor_printf(mon, "policy: %s\n",
1656 acl->defaultDeny ? "deny" : "allow");
1657 QTAILQ_FOREACH(entry, &acl->entries, next) {
1658 i++;
1659 monitor_printf(mon, "%d: %s %s\n", i,
1660 entry->deny ? "deny" : "allow", entry->match);
1661 }
1662 }
1663 }
1664
1665 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
1666 {
1667 const char *aclname = qdict_get_str(qdict, "aclname");
1668 qemu_acl *acl = find_acl(mon, aclname);
1669
1670 if (acl) {
1671 qemu_acl_reset(acl);
1672 monitor_printf(mon, "acl: removed all rules\n");
1673 }
1674 }
1675
1676 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
1677 {
1678 const char *aclname = qdict_get_str(qdict, "aclname");
1679 const char *policy = qdict_get_str(qdict, "policy");
1680 qemu_acl *acl = find_acl(mon, aclname);
1681
1682 if (acl) {
1683 if (strcmp(policy, "allow") == 0) {
1684 acl->defaultDeny = 0;
1685 monitor_printf(mon, "acl: policy set to 'allow'\n");
1686 } else if (strcmp(policy, "deny") == 0) {
1687 acl->defaultDeny = 1;
1688 monitor_printf(mon, "acl: policy set to 'deny'\n");
1689 } else {
1690 monitor_printf(mon, "acl: unknown policy '%s', "
1691 "expected 'deny' or 'allow'\n", policy);
1692 }
1693 }
1694 }
1695
1696 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
1697 {
1698 const char *aclname = qdict_get_str(qdict, "aclname");
1699 const char *match = qdict_get_str(qdict, "match");
1700 const char *policy = qdict_get_str(qdict, "policy");
1701 int has_index = qdict_haskey(qdict, "index");
1702 int index = qdict_get_try_int(qdict, "index", -1);
1703 qemu_acl *acl = find_acl(mon, aclname);
1704 int deny, ret;
1705
1706 if (acl) {
1707 if (strcmp(policy, "allow") == 0) {
1708 deny = 0;
1709 } else if (strcmp(policy, "deny") == 0) {
1710 deny = 1;
1711 } else {
1712 monitor_printf(mon, "acl: unknown policy '%s', "
1713 "expected 'deny' or 'allow'\n", policy);
1714 return;
1715 }
1716 if (has_index)
1717 ret = qemu_acl_insert(acl, deny, match, index);
1718 else
1719 ret = qemu_acl_append(acl, deny, match);
1720 if (ret < 0)
1721 monitor_printf(mon, "acl: unable to add acl entry\n");
1722 else
1723 monitor_printf(mon, "acl: added rule at position %d\n", ret);
1724 }
1725 }
1726
1727 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
1728 {
1729 const char *aclname = qdict_get_str(qdict, "aclname");
1730 const char *match = qdict_get_str(qdict, "match");
1731 qemu_acl *acl = find_acl(mon, aclname);
1732 int ret;
1733
1734 if (acl) {
1735 ret = qemu_acl_remove(acl, match);
1736 if (ret < 0)
1737 monitor_printf(mon, "acl: no matching acl entry\n");
1738 else
1739 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
1740 }
1741 }
1742
1743 void qmp_getfd(const char *fdname, Error **errp)
1744 {
1745 mon_fd_t *monfd;
1746 int fd;
1747
1748 fd = qemu_chr_fe_get_msgfd(cur_mon->chr);
1749 if (fd == -1) {
1750 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1751 return;
1752 }
1753
1754 if (qemu_isdigit(fdname[0])) {
1755 close(fd);
1756 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
1757 "a name not starting with a digit");
1758 return;
1759 }
1760
1761 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1762 if (strcmp(monfd->name, fdname) != 0) {
1763 continue;
1764 }
1765
1766 close(monfd->fd);
1767 monfd->fd = fd;
1768 return;
1769 }
1770
1771 monfd = g_malloc0(sizeof(mon_fd_t));
1772 monfd->name = g_strdup(fdname);
1773 monfd->fd = fd;
1774
1775 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
1776 }
1777
1778 void qmp_closefd(const char *fdname, Error **errp)
1779 {
1780 mon_fd_t *monfd;
1781
1782 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1783 if (strcmp(monfd->name, fdname) != 0) {
1784 continue;
1785 }
1786
1787 QLIST_REMOVE(monfd, next);
1788 close(monfd->fd);
1789 g_free(monfd->name);
1790 g_free(monfd);
1791 return;
1792 }
1793
1794 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
1795 }
1796
1797 static void hmp_loadvm(Monitor *mon, const QDict *qdict)
1798 {
1799 int saved_vm_running = runstate_is_running();
1800 const char *name = qdict_get_str(qdict, "name");
1801
1802 vm_stop(RUN_STATE_RESTORE_VM);
1803
1804 if (load_vmstate(name) == 0 && saved_vm_running) {
1805 vm_start();
1806 }
1807 }
1808
1809 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
1810 {
1811 mon_fd_t *monfd;
1812
1813 QLIST_FOREACH(monfd, &mon->fds, next) {
1814 int fd;
1815
1816 if (strcmp(monfd->name, fdname) != 0) {
1817 continue;
1818 }
1819
1820 fd = monfd->fd;
1821
1822 /* caller takes ownership of fd */
1823 QLIST_REMOVE(monfd, next);
1824 g_free(monfd->name);
1825 g_free(monfd);
1826
1827 return fd;
1828 }
1829
1830 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
1831 return -1;
1832 }
1833
1834 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
1835 {
1836 MonFdsetFd *mon_fdset_fd;
1837 MonFdsetFd *mon_fdset_fd_next;
1838
1839 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
1840 if ((mon_fdset_fd->removed ||
1841 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
1842 runstate_is_running()) {
1843 close(mon_fdset_fd->fd);
1844 g_free(mon_fdset_fd->opaque);
1845 QLIST_REMOVE(mon_fdset_fd, next);
1846 g_free(mon_fdset_fd);
1847 }
1848 }
1849
1850 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
1851 QLIST_REMOVE(mon_fdset, next);
1852 g_free(mon_fdset);
1853 }
1854 }
1855
1856 static void monitor_fdsets_cleanup(void)
1857 {
1858 MonFdset *mon_fdset;
1859 MonFdset *mon_fdset_next;
1860
1861 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
1862 monitor_fdset_cleanup(mon_fdset);
1863 }
1864 }
1865
1866 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
1867 const char *opaque, Error **errp)
1868 {
1869 int fd;
1870 Monitor *mon = cur_mon;
1871 AddfdInfo *fdinfo;
1872
1873 fd = qemu_chr_fe_get_msgfd(mon->chr);
1874 if (fd == -1) {
1875 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1876 goto error;
1877 }
1878
1879 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
1880 has_opaque, opaque, errp);
1881 if (fdinfo) {
1882 return fdinfo;
1883 }
1884
1885 error:
1886 if (fd != -1) {
1887 close(fd);
1888 }
1889 return NULL;
1890 }
1891
1892 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
1893 {
1894 MonFdset *mon_fdset;
1895 MonFdsetFd *mon_fdset_fd;
1896 char fd_str[60];
1897
1898 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1899 if (mon_fdset->id != fdset_id) {
1900 continue;
1901 }
1902 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1903 if (has_fd) {
1904 if (mon_fdset_fd->fd != fd) {
1905 continue;
1906 }
1907 mon_fdset_fd->removed = true;
1908 break;
1909 } else {
1910 mon_fdset_fd->removed = true;
1911 }
1912 }
1913 if (has_fd && !mon_fdset_fd) {
1914 goto error;
1915 }
1916 monitor_fdset_cleanup(mon_fdset);
1917 return;
1918 }
1919
1920 error:
1921 if (has_fd) {
1922 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
1923 fdset_id, fd);
1924 } else {
1925 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
1926 }
1927 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
1928 }
1929
1930 FdsetInfoList *qmp_query_fdsets(Error **errp)
1931 {
1932 MonFdset *mon_fdset;
1933 MonFdsetFd *mon_fdset_fd;
1934 FdsetInfoList *fdset_list = NULL;
1935
1936 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1937 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
1938 FdsetFdInfoList *fdsetfd_list = NULL;
1939
1940 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
1941 fdset_info->value->fdset_id = mon_fdset->id;
1942
1943 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1944 FdsetFdInfoList *fdsetfd_info;
1945
1946 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
1947 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
1948 fdsetfd_info->value->fd = mon_fdset_fd->fd;
1949 if (mon_fdset_fd->opaque) {
1950 fdsetfd_info->value->has_opaque = true;
1951 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
1952 } else {
1953 fdsetfd_info->value->has_opaque = false;
1954 }
1955
1956 fdsetfd_info->next = fdsetfd_list;
1957 fdsetfd_list = fdsetfd_info;
1958 }
1959
1960 fdset_info->value->fds = fdsetfd_list;
1961
1962 fdset_info->next = fdset_list;
1963 fdset_list = fdset_info;
1964 }
1965
1966 return fdset_list;
1967 }
1968
1969 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
1970 bool has_opaque, const char *opaque,
1971 Error **errp)
1972 {
1973 MonFdset *mon_fdset = NULL;
1974 MonFdsetFd *mon_fdset_fd;
1975 AddfdInfo *fdinfo;
1976
1977 if (has_fdset_id) {
1978 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1979 /* Break if match found or match impossible due to ordering by ID */
1980 if (fdset_id <= mon_fdset->id) {
1981 if (fdset_id < mon_fdset->id) {
1982 mon_fdset = NULL;
1983 }
1984 break;
1985 }
1986 }
1987 }
1988
1989 if (mon_fdset == NULL) {
1990 int64_t fdset_id_prev = -1;
1991 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
1992
1993 if (has_fdset_id) {
1994 if (fdset_id < 0) {
1995 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
1996 "a non-negative value");
1997 return NULL;
1998 }
1999 /* Use specified fdset ID */
2000 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2001 mon_fdset_cur = mon_fdset;
2002 if (fdset_id < mon_fdset_cur->id) {
2003 break;
2004 }
2005 }
2006 } else {
2007 /* Use first available fdset ID */
2008 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2009 mon_fdset_cur = mon_fdset;
2010 if (fdset_id_prev == mon_fdset_cur->id - 1) {
2011 fdset_id_prev = mon_fdset_cur->id;
2012 continue;
2013 }
2014 break;
2015 }
2016 }
2017
2018 mon_fdset = g_malloc0(sizeof(*mon_fdset));
2019 if (has_fdset_id) {
2020 mon_fdset->id = fdset_id;
2021 } else {
2022 mon_fdset->id = fdset_id_prev + 1;
2023 }
2024
2025 /* The fdset list is ordered by fdset ID */
2026 if (!mon_fdset_cur) {
2027 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
2028 } else if (mon_fdset->id < mon_fdset_cur->id) {
2029 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
2030 } else {
2031 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
2032 }
2033 }
2034
2035 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
2036 mon_fdset_fd->fd = fd;
2037 mon_fdset_fd->removed = false;
2038 if (has_opaque) {
2039 mon_fdset_fd->opaque = g_strdup(opaque);
2040 }
2041 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
2042
2043 fdinfo = g_malloc0(sizeof(*fdinfo));
2044 fdinfo->fdset_id = mon_fdset->id;
2045 fdinfo->fd = mon_fdset_fd->fd;
2046
2047 return fdinfo;
2048 }
2049
2050 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
2051 {
2052 #ifndef _WIN32
2053 MonFdset *mon_fdset;
2054 MonFdsetFd *mon_fdset_fd;
2055 int mon_fd_flags;
2056
2057 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2058 if (mon_fdset->id != fdset_id) {
2059 continue;
2060 }
2061 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2062 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2063 if (mon_fd_flags == -1) {
2064 return -1;
2065 }
2066
2067 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2068 return mon_fdset_fd->fd;
2069 }
2070 }
2071 errno = EACCES;
2072 return -1;
2073 }
2074 #endif
2075
2076 errno = ENOENT;
2077 return -1;
2078 }
2079
2080 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2081 {
2082 MonFdset *mon_fdset;
2083 MonFdsetFd *mon_fdset_fd_dup;
2084
2085 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2086 if (mon_fdset->id != fdset_id) {
2087 continue;
2088 }
2089 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2090 if (mon_fdset_fd_dup->fd == dup_fd) {
2091 return -1;
2092 }
2093 }
2094 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2095 mon_fdset_fd_dup->fd = dup_fd;
2096 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2097 return 0;
2098 }
2099 return -1;
2100 }
2101
2102 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2103 {
2104 MonFdset *mon_fdset;
2105 MonFdsetFd *mon_fdset_fd_dup;
2106
2107 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2108 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2109 if (mon_fdset_fd_dup->fd == dup_fd) {
2110 if (remove) {
2111 QLIST_REMOVE(mon_fdset_fd_dup, next);
2112 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2113 monitor_fdset_cleanup(mon_fdset);
2114 }
2115 return -1;
2116 } else {
2117 return mon_fdset->id;
2118 }
2119 }
2120 }
2121 }
2122 return -1;
2123 }
2124
2125 int monitor_fdset_dup_fd_find(int dup_fd)
2126 {
2127 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2128 }
2129
2130 void monitor_fdset_dup_fd_remove(int dup_fd)
2131 {
2132 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2133 }
2134
2135 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2136 {
2137 int fd;
2138 Error *local_err = NULL;
2139
2140 if (!qemu_isdigit(fdname[0]) && mon) {
2141 fd = monitor_get_fd(mon, fdname, &local_err);
2142 } else {
2143 fd = qemu_parse_fd(fdname);
2144 if (fd == -1) {
2145 error_setg(&local_err, "Invalid file descriptor number '%s'",
2146 fdname);
2147 }
2148 }
2149 if (local_err) {
2150 error_propagate(errp, local_err);
2151 assert(fd == -1);
2152 } else {
2153 assert(fd != -1);
2154 }
2155
2156 return fd;
2157 }
2158
2159 /* Please update hmp-commands.hx when adding or changing commands */
2160 static mon_cmd_t info_cmds[] = {
2161 #include "hmp-commands-info.h"
2162 { NULL, NULL, },
2163 };
2164
2165 /* mon_cmds and info_cmds would be sorted at runtime */
2166 static mon_cmd_t mon_cmds[] = {
2167 #include "hmp-commands.h"
2168 { NULL, NULL, },
2169 };
2170
2171 /*******************************************************************/
2172
2173 static const char *pch;
2174 static sigjmp_buf expr_env;
2175
2176
2177 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2178 expr_error(Monitor *mon, const char *fmt, ...)
2179 {
2180 va_list ap;
2181 va_start(ap, fmt);
2182 monitor_vprintf(mon, fmt, ap);
2183 monitor_printf(mon, "\n");
2184 va_end(ap);
2185 siglongjmp(expr_env, 1);
2186 }
2187
2188 /* return 0 if OK, -1 if not found */
2189 static int get_monitor_def(target_long *pval, const char *name)
2190 {
2191 const MonitorDef *md = target_monitor_defs();
2192 void *ptr;
2193 uint64_t tmp = 0;
2194 int ret;
2195
2196 if (md == NULL) {
2197 return -1;
2198 }
2199
2200 for(; md->name != NULL; md++) {
2201 if (compare_cmd(name, md->name)) {
2202 if (md->get_value) {
2203 *pval = md->get_value(md, md->offset);
2204 } else {
2205 CPUArchState *env = mon_get_cpu_env();
2206 ptr = (uint8_t *)env + md->offset;
2207 switch(md->type) {
2208 case MD_I32:
2209 *pval = *(int32_t *)ptr;
2210 break;
2211 case MD_TLONG:
2212 *pval = *(target_long *)ptr;
2213 break;
2214 default:
2215 *pval = 0;
2216 break;
2217 }
2218 }
2219 return 0;
2220 }
2221 }
2222
2223 ret = target_get_monitor_def(mon_get_cpu(), name, &tmp);
2224 if (!ret) {
2225 *pval = (target_long) tmp;
2226 }
2227
2228 return ret;
2229 }
2230
2231 static void next(void)
2232 {
2233 if (*pch != '\0') {
2234 pch++;
2235 while (qemu_isspace(*pch))
2236 pch++;
2237 }
2238 }
2239
2240 static int64_t expr_sum(Monitor *mon);
2241
2242 static int64_t expr_unary(Monitor *mon)
2243 {
2244 int64_t n;
2245 char *p;
2246 int ret;
2247
2248 switch(*pch) {
2249 case '+':
2250 next();
2251 n = expr_unary(mon);
2252 break;
2253 case '-':
2254 next();
2255 n = -expr_unary(mon);
2256 break;
2257 case '~':
2258 next();
2259 n = ~expr_unary(mon);
2260 break;
2261 case '(':
2262 next();
2263 n = expr_sum(mon);
2264 if (*pch != ')') {
2265 expr_error(mon, "')' expected");
2266 }
2267 next();
2268 break;
2269 case '\'':
2270 pch++;
2271 if (*pch == '\0')
2272 expr_error(mon, "character constant expected");
2273 n = *pch;
2274 pch++;
2275 if (*pch != '\'')
2276 expr_error(mon, "missing terminating \' character");
2277 next();
2278 break;
2279 case '$':
2280 {
2281 char buf[128], *q;
2282 target_long reg=0;
2283
2284 pch++;
2285 q = buf;
2286 while ((*pch >= 'a' && *pch <= 'z') ||
2287 (*pch >= 'A' && *pch <= 'Z') ||
2288 (*pch >= '0' && *pch <= '9') ||
2289 *pch == '_' || *pch == '.') {
2290 if ((q - buf) < sizeof(buf) - 1)
2291 *q++ = *pch;
2292 pch++;
2293 }
2294 while (qemu_isspace(*pch))
2295 pch++;
2296 *q = 0;
2297 ret = get_monitor_def(&reg, buf);
2298 if (ret < 0)
2299 expr_error(mon, "unknown register");
2300 n = reg;
2301 }
2302 break;
2303 case '\0':
2304 expr_error(mon, "unexpected end of expression");
2305 n = 0;
2306 break;
2307 default:
2308 errno = 0;
2309 n = strtoull(pch, &p, 0);
2310 if (errno == ERANGE) {
2311 expr_error(mon, "number too large");
2312 }
2313 if (pch == p) {
2314 expr_error(mon, "invalid char '%c' in expression", *p);
2315 }
2316 pch = p;
2317 while (qemu_isspace(*pch))
2318 pch++;
2319 break;
2320 }
2321 return n;
2322 }
2323
2324
2325 static int64_t expr_prod(Monitor *mon)
2326 {
2327 int64_t val, val2;
2328 int op;
2329
2330 val = expr_unary(mon);
2331 for(;;) {
2332 op = *pch;
2333 if (op != '*' && op != '/' && op != '%')
2334 break;
2335 next();
2336 val2 = expr_unary(mon);
2337 switch(op) {
2338 default:
2339 case '*':
2340 val *= val2;
2341 break;
2342 case '/':
2343 case '%':
2344 if (val2 == 0)
2345 expr_error(mon, "division by zero");
2346 if (op == '/')
2347 val /= val2;
2348 else
2349 val %= val2;
2350 break;
2351 }
2352 }
2353 return val;
2354 }
2355
2356 static int64_t expr_logic(Monitor *mon)
2357 {
2358 int64_t val, val2;
2359 int op;
2360
2361 val = expr_prod(mon);
2362 for(;;) {
2363 op = *pch;
2364 if (op != '&' && op != '|' && op != '^')
2365 break;
2366 next();
2367 val2 = expr_prod(mon);
2368 switch(op) {
2369 default:
2370 case '&':
2371 val &= val2;
2372 break;
2373 case '|':
2374 val |= val2;
2375 break;
2376 case '^':
2377 val ^= val2;
2378 break;
2379 }
2380 }
2381 return val;
2382 }
2383
2384 static int64_t expr_sum(Monitor *mon)
2385 {
2386 int64_t val, val2;
2387 int op;
2388
2389 val = expr_logic(mon);
2390 for(;;) {
2391 op = *pch;
2392 if (op != '+' && op != '-')
2393 break;
2394 next();
2395 val2 = expr_logic(mon);
2396 if (op == '+')
2397 val += val2;
2398 else
2399 val -= val2;
2400 }
2401 return val;
2402 }
2403
2404 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2405 {
2406 pch = *pp;
2407 if (sigsetjmp(expr_env, 0)) {
2408 *pp = pch;
2409 return -1;
2410 }
2411 while (qemu_isspace(*pch))
2412 pch++;
2413 *pval = expr_sum(mon);
2414 *pp = pch;
2415 return 0;
2416 }
2417
2418 static int get_double(Monitor *mon, double *pval, const char **pp)
2419 {
2420 const char *p = *pp;
2421 char *tailp;
2422 double d;
2423
2424 d = strtod(p, &tailp);
2425 if (tailp == p) {
2426 monitor_printf(mon, "Number expected\n");
2427 return -1;
2428 }
2429 if (d != d || d - d != 0) {
2430 /* NaN or infinity */
2431 monitor_printf(mon, "Bad number\n");
2432 return -1;
2433 }
2434 *pval = d;
2435 *pp = tailp;
2436 return 0;
2437 }
2438
2439 /*
2440 * Store the command-name in cmdname, and return a pointer to
2441 * the remaining of the command string.
2442 */
2443 static const char *get_command_name(const char *cmdline,
2444 char *cmdname, size_t nlen)
2445 {
2446 size_t len;
2447 const char *p, *pstart;
2448
2449 p = cmdline;
2450 while (qemu_isspace(*p))
2451 p++;
2452 if (*p == '\0')
2453 return NULL;
2454 pstart = p;
2455 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2456 p++;
2457 len = p - pstart;
2458 if (len > nlen - 1)
2459 len = nlen - 1;
2460 memcpy(cmdname, pstart, len);
2461 cmdname[len] = '\0';
2462 return p;
2463 }
2464
2465 /**
2466 * Read key of 'type' into 'key' and return the current
2467 * 'type' pointer.
2468 */
2469 static char *key_get_info(const char *type, char **key)
2470 {
2471 size_t len;
2472 char *p, *str;
2473
2474 if (*type == ',')
2475 type++;
2476
2477 p = strchr(type, ':');
2478 if (!p) {
2479 *key = NULL;
2480 return NULL;
2481 }
2482 len = p - type;
2483
2484 str = g_malloc(len + 1);
2485 memcpy(str, type, len);
2486 str[len] = '\0';
2487
2488 *key = str;
2489 return ++p;
2490 }
2491
2492 static int default_fmt_format = 'x';
2493 static int default_fmt_size = 4;
2494
2495 static int is_valid_option(const char *c, const char *typestr)
2496 {
2497 char option[3];
2498
2499 option[0] = '-';
2500 option[1] = *c;
2501 option[2] = '\0';
2502
2503 typestr = strstr(typestr, option);
2504 return (typestr != NULL);
2505 }
2506
2507 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2508 const char *cmdname)
2509 {
2510 const mon_cmd_t *cmd;
2511
2512 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2513 if (compare_cmd(cmdname, cmd->name)) {
2514 return cmd;
2515 }
2516 }
2517
2518 return NULL;
2519 }
2520
2521 /*
2522 * Parse command name from @cmdp according to command table @table.
2523 * If blank, return NULL.
2524 * Else, if no valid command can be found, report to @mon, and return
2525 * NULL.
2526 * Else, change @cmdp to point right behind the name, and return its
2527 * command table entry.
2528 * Do not assume the return value points into @table! It doesn't when
2529 * the command is found in a sub-command table.
2530 */
2531 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2532 const char **cmdp,
2533 mon_cmd_t *table)
2534 {
2535 const char *p;
2536 const mon_cmd_t *cmd;
2537 char cmdname[256];
2538
2539 /* extract the command name */
2540 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2541 if (!p)
2542 return NULL;
2543
2544 cmd = search_dispatch_table(table, cmdname);
2545 if (!cmd) {
2546 monitor_printf(mon, "unknown command: '%.*s'\n",
2547 (int)(p - *cmdp), *cmdp);
2548 return NULL;
2549 }
2550
2551 /* filter out following useless space */
2552 while (qemu_isspace(*p)) {
2553 p++;
2554 }
2555
2556 *cmdp = p;
2557 /* search sub command */
2558 if (cmd->sub_table != NULL && *p != '\0') {
2559 return monitor_parse_command(mon, cmdp, cmd->sub_table);
2560 }
2561
2562 return cmd;
2563 }
2564
2565 /*
2566 * Parse arguments for @cmd.
2567 * If it can't be parsed, report to @mon, and return NULL.
2568 * Else, insert command arguments into a QDict, and return it.
2569 * Note: On success, caller has to free the QDict structure.
2570 */
2571
2572 static QDict *monitor_parse_arguments(Monitor *mon,
2573 const char **endp,
2574 const mon_cmd_t *cmd)
2575 {
2576 const char *typestr;
2577 char *key;
2578 int c;
2579 const char *p = *endp;
2580 char buf[1024];
2581 QDict *qdict = qdict_new();
2582
2583 /* parse the parameters */
2584 typestr = cmd->args_type;
2585 for(;;) {
2586 typestr = key_get_info(typestr, &key);
2587 if (!typestr)
2588 break;
2589 c = *typestr;
2590 typestr++;
2591 switch(c) {
2592 case 'F':
2593 case 'B':
2594 case 's':
2595 {
2596 int ret;
2597
2598 while (qemu_isspace(*p))
2599 p++;
2600 if (*typestr == '?') {
2601 typestr++;
2602 if (*p == '\0') {
2603 /* no optional string: NULL argument */
2604 break;
2605 }
2606 }
2607 ret = get_str(buf, sizeof(buf), &p);
2608 if (ret < 0) {
2609 switch(c) {
2610 case 'F':
2611 monitor_printf(mon, "%s: filename expected\n",
2612 cmd->name);
2613 break;
2614 case 'B':
2615 monitor_printf(mon, "%s: block device name expected\n",
2616 cmd->name);
2617 break;
2618 default:
2619 monitor_printf(mon, "%s: string expected\n", cmd->name);
2620 break;
2621 }
2622 goto fail;
2623 }
2624 qdict_put(qdict, key, qstring_from_str(buf));
2625 }
2626 break;
2627 case 'O':
2628 {
2629 QemuOptsList *opts_list;
2630 QemuOpts *opts;
2631
2632 opts_list = qemu_find_opts(key);
2633 if (!opts_list || opts_list->desc->name) {
2634 goto bad_type;
2635 }
2636 while (qemu_isspace(*p)) {
2637 p++;
2638 }
2639 if (!*p)
2640 break;
2641 if (get_str(buf, sizeof(buf), &p) < 0) {
2642 goto fail;
2643 }
2644 opts = qemu_opts_parse_noisily(opts_list, buf, true);
2645 if (!opts) {
2646 goto fail;
2647 }
2648 qemu_opts_to_qdict(opts, qdict);
2649 qemu_opts_del(opts);
2650 }
2651 break;
2652 case '/':
2653 {
2654 int count, format, size;
2655
2656 while (qemu_isspace(*p))
2657 p++;
2658 if (*p == '/') {
2659 /* format found */
2660 p++;
2661 count = 1;
2662 if (qemu_isdigit(*p)) {
2663 count = 0;
2664 while (qemu_isdigit(*p)) {
2665 count = count * 10 + (*p - '0');
2666 p++;
2667 }
2668 }
2669 size = -1;
2670 format = -1;
2671 for(;;) {
2672 switch(*p) {
2673 case 'o':
2674 case 'd':
2675 case 'u':
2676 case 'x':
2677 case 'i':
2678 case 'c':
2679 format = *p++;
2680 break;
2681 case 'b':
2682 size = 1;
2683 p++;
2684 break;
2685 case 'h':
2686 size = 2;
2687 p++;
2688 break;
2689 case 'w':
2690 size = 4;
2691 p++;
2692 break;
2693 case 'g':
2694 case 'L':
2695 size = 8;
2696 p++;
2697 break;
2698 default:
2699 goto next;
2700 }
2701 }
2702 next:
2703 if (*p != '\0' && !qemu_isspace(*p)) {
2704 monitor_printf(mon, "invalid char in format: '%c'\n",
2705 *p);
2706 goto fail;
2707 }
2708 if (format < 0)
2709 format = default_fmt_format;
2710 if (format != 'i') {
2711 /* for 'i', not specifying a size gives -1 as size */
2712 if (size < 0)
2713 size = default_fmt_size;
2714 default_fmt_size = size;
2715 }
2716 default_fmt_format = format;
2717 } else {
2718 count = 1;
2719 format = default_fmt_format;
2720 if (format != 'i') {
2721 size = default_fmt_size;
2722 } else {
2723 size = -1;
2724 }
2725 }
2726 qdict_put(qdict, "count", qint_from_int(count));
2727 qdict_put(qdict, "format", qint_from_int(format));
2728 qdict_put(qdict, "size", qint_from_int(size));
2729 }
2730 break;
2731 case 'i':
2732 case 'l':
2733 case 'M':
2734 {
2735 int64_t val;
2736
2737 while (qemu_isspace(*p))
2738 p++;
2739 if (*typestr == '?' || *typestr == '.') {
2740 if (*typestr == '?') {
2741 if (*p == '\0') {
2742 typestr++;
2743 break;
2744 }
2745 } else {
2746 if (*p == '.') {
2747 p++;
2748 while (qemu_isspace(*p))
2749 p++;
2750 } else {
2751 typestr++;
2752 break;
2753 }
2754 }
2755 typestr++;
2756 }
2757 if (get_expr(mon, &val, &p))
2758 goto fail;
2759 /* Check if 'i' is greater than 32-bit */
2760 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
2761 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
2762 monitor_printf(mon, "integer is for 32-bit values\n");
2763 goto fail;
2764 } else if (c == 'M') {
2765 if (val < 0) {
2766 monitor_printf(mon, "enter a positive value\n");
2767 goto fail;
2768 }
2769 val <<= 20;
2770 }
2771 qdict_put(qdict, key, qint_from_int(val));
2772 }
2773 break;
2774 case 'o':
2775 {
2776 int64_t val;
2777 char *end;
2778
2779 while (qemu_isspace(*p)) {
2780 p++;
2781 }
2782 if (*typestr == '?') {
2783 typestr++;
2784 if (*p == '\0') {
2785 break;
2786 }
2787 }
2788 val = qemu_strtosz(p, &end);
2789 if (val < 0) {
2790 monitor_printf(mon, "invalid size\n");
2791 goto fail;
2792 }
2793 qdict_put(qdict, key, qint_from_int(val));
2794 p = end;
2795 }
2796 break;
2797 case 'T':
2798 {
2799 double val;
2800
2801 while (qemu_isspace(*p))
2802 p++;
2803 if (*typestr == '?') {
2804 typestr++;
2805 if (*p == '\0') {
2806 break;
2807 }
2808 }
2809 if (get_double(mon, &val, &p) < 0) {
2810 goto fail;
2811 }
2812 if (p[0] && p[1] == 's') {
2813 switch (*p) {
2814 case 'm':
2815 val /= 1e3; p += 2; break;
2816 case 'u':
2817 val /= 1e6; p += 2; break;
2818 case 'n':
2819 val /= 1e9; p += 2; break;
2820 }
2821 }
2822 if (*p && !qemu_isspace(*p)) {
2823 monitor_printf(mon, "Unknown unit suffix\n");
2824 goto fail;
2825 }
2826 qdict_put(qdict, key, qfloat_from_double(val));
2827 }
2828 break;
2829 case 'b':
2830 {
2831 const char *beg;
2832 bool val;
2833
2834 while (qemu_isspace(*p)) {
2835 p++;
2836 }
2837 beg = p;
2838 while (qemu_isgraph(*p)) {
2839 p++;
2840 }
2841 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
2842 val = true;
2843 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
2844 val = false;
2845 } else {
2846 monitor_printf(mon, "Expected 'on' or 'off'\n");
2847 goto fail;
2848 }
2849 qdict_put(qdict, key, qbool_from_bool(val));
2850 }
2851 break;
2852 case '-':
2853 {
2854 const char *tmp = p;
2855 int skip_key = 0;
2856 /* option */
2857
2858 c = *typestr++;
2859 if (c == '\0')
2860 goto bad_type;
2861 while (qemu_isspace(*p))
2862 p++;
2863 if (*p == '-') {
2864 p++;
2865 if(c != *p) {
2866 if(!is_valid_option(p, typestr)) {
2867
2868 monitor_printf(mon, "%s: unsupported option -%c\n",
2869 cmd->name, *p);
2870 goto fail;
2871 } else {
2872 skip_key = 1;
2873 }
2874 }
2875 if(skip_key) {
2876 p = tmp;
2877 } else {
2878 /* has option */
2879 p++;
2880 qdict_put(qdict, key, qbool_from_bool(true));
2881 }
2882 }
2883 }
2884 break;
2885 case 'S':
2886 {
2887 /* package all remaining string */
2888 int len;
2889
2890 while (qemu_isspace(*p)) {
2891 p++;
2892 }
2893 if (*typestr == '?') {
2894 typestr++;
2895 if (*p == '\0') {
2896 /* no remaining string: NULL argument */
2897 break;
2898 }
2899 }
2900 len = strlen(p);
2901 if (len <= 0) {
2902 monitor_printf(mon, "%s: string expected\n",
2903 cmd->name);
2904 goto fail;
2905 }
2906 qdict_put(qdict, key, qstring_from_str(p));
2907 p += len;
2908 }
2909 break;
2910 default:
2911 bad_type:
2912 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
2913 goto fail;
2914 }
2915 g_free(key);
2916 key = NULL;
2917 }
2918 /* check that all arguments were parsed */
2919 while (qemu_isspace(*p))
2920 p++;
2921 if (*p != '\0') {
2922 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
2923 cmd->name);
2924 goto fail;
2925 }
2926
2927 return qdict;
2928
2929 fail:
2930 QDECREF(qdict);
2931 g_free(key);
2932 return NULL;
2933 }
2934
2935 static void handle_hmp_command(Monitor *mon, const char *cmdline)
2936 {
2937 QDict *qdict;
2938 const mon_cmd_t *cmd;
2939
2940 cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table);
2941 if (!cmd) {
2942 return;
2943 }
2944
2945 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
2946 if (!qdict) {
2947 monitor_printf(mon, "Try \"help %s\" for more information\n",
2948 cmd->name);
2949 return;
2950 }
2951
2952 cmd->cmd(mon, qdict);
2953 QDECREF(qdict);
2954 }
2955
2956 static void cmd_completion(Monitor *mon, const char *name, const char *list)
2957 {
2958 const char *p, *pstart;
2959 char cmd[128];
2960 int len;
2961
2962 p = list;
2963 for(;;) {
2964 pstart = p;
2965 p = strchr(p, '|');
2966 if (!p)
2967 p = pstart + strlen(pstart);
2968 len = p - pstart;
2969 if (len > sizeof(cmd) - 2)
2970 len = sizeof(cmd) - 2;
2971 memcpy(cmd, pstart, len);
2972 cmd[len] = '\0';
2973 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2974 readline_add_completion(mon->rs, cmd);
2975 }
2976 if (*p == '\0')
2977 break;
2978 p++;
2979 }
2980 }
2981
2982 static void file_completion(Monitor *mon, const char *input)
2983 {
2984 DIR *ffs;
2985 struct dirent *d;
2986 char path[1024];
2987 char file[1024], file_prefix[1024];
2988 int input_path_len;
2989 const char *p;
2990
2991 p = strrchr(input, '/');
2992 if (!p) {
2993 input_path_len = 0;
2994 pstrcpy(file_prefix, sizeof(file_prefix), input);
2995 pstrcpy(path, sizeof(path), ".");
2996 } else {
2997 input_path_len = p - input + 1;
2998 memcpy(path, input, input_path_len);
2999 if (input_path_len > sizeof(path) - 1)
3000 input_path_len = sizeof(path) - 1;
3001 path[input_path_len] = '\0';
3002 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3003 }
3004
3005 ffs = opendir(path);
3006 if (!ffs)
3007 return;
3008 for(;;) {
3009 struct stat sb;
3010 d = readdir(ffs);
3011 if (!d)
3012 break;
3013
3014 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
3015 continue;
3016 }
3017
3018 if (strstart(d->d_name, file_prefix, NULL)) {
3019 memcpy(file, input, input_path_len);
3020 if (input_path_len < sizeof(file))
3021 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3022 d->d_name);
3023 /* stat the file to find out if it's a directory.
3024 * In that case add a slash to speed up typing long paths
3025 */
3026 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
3027 pstrcat(file, sizeof(file), "/");
3028 }
3029 readline_add_completion(mon->rs, file);
3030 }
3031 }
3032 closedir(ffs);
3033 }
3034
3035 static const char *next_arg_type(const char *typestr)
3036 {
3037 const char *p = strchr(typestr, ':');
3038 return (p != NULL ? ++p : typestr);
3039 }
3040
3041 static void add_completion_option(ReadLineState *rs, const char *str,
3042 const char *option)
3043 {
3044 if (!str || !option) {
3045 return;
3046 }
3047 if (!strncmp(option, str, strlen(str))) {
3048 readline_add_completion(rs, option);
3049 }
3050 }
3051
3052 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3053 {
3054 size_t len;
3055 ChardevBackendInfoList *list, *start;
3056
3057 if (nb_args != 2) {
3058 return;
3059 }
3060 len = strlen(str);
3061 readline_set_completion_index(rs, len);
3062
3063 start = list = qmp_query_chardev_backends(NULL);
3064 while (list) {
3065 const char *chr_name = list->value->name;
3066
3067 if (!strncmp(chr_name, str, len)) {
3068 readline_add_completion(rs, chr_name);
3069 }
3070 list = list->next;
3071 }
3072 qapi_free_ChardevBackendInfoList(start);
3073 }
3074
3075 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3076 {
3077 size_t len;
3078 int i;
3079
3080 if (nb_args != 2) {
3081 return;
3082 }
3083 len = strlen(str);
3084 readline_set_completion_index(rs, len);
3085 for (i = 0; NetClientDriver_lookup[i]; i++) {
3086 add_completion_option(rs, str, NetClientDriver_lookup[i]);
3087 }
3088 }
3089
3090 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3091 {
3092 GSList *list, *elt;
3093 size_t len;
3094
3095 if (nb_args != 2) {
3096 return;
3097 }
3098
3099 len = strlen(str);
3100 readline_set_completion_index(rs, len);
3101 list = elt = object_class_get_list(TYPE_DEVICE, false);
3102 while (elt) {
3103 const char *name;
3104 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3105 TYPE_DEVICE);
3106 name = object_class_get_name(OBJECT_CLASS(dc));
3107
3108 if (!dc->cannot_instantiate_with_device_add_yet
3109 && !strncmp(name, str, len)) {
3110 readline_add_completion(rs, name);
3111 }
3112 elt = elt->next;
3113 }
3114 g_slist_free(list);
3115 }
3116
3117 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3118 {
3119 GSList *list, *elt;
3120 size_t len;
3121
3122 if (nb_args != 2) {
3123 return;
3124 }
3125
3126 len = strlen(str);
3127 readline_set_completion_index(rs, len);
3128 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3129 while (elt) {
3130 const char *name;
3131
3132 name = object_class_get_name(OBJECT_CLASS(elt->data));
3133 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3134 readline_add_completion(rs, name);
3135 }
3136 elt = elt->next;
3137 }
3138 g_slist_free(list);
3139 }
3140
3141 static void peripheral_device_del_completion(ReadLineState *rs,
3142 const char *str, size_t len)
3143 {
3144 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3145 GSList *list, *item;
3146
3147 list = qdev_build_hotpluggable_device_list(peripheral);
3148 if (!list) {
3149 return;
3150 }
3151
3152 for (item = list; item; item = g_slist_next(item)) {
3153 DeviceState *dev = item->data;
3154
3155 if (dev->id && !strncmp(str, dev->id, len)) {
3156 readline_add_completion(rs, dev->id);
3157 }
3158 }
3159
3160 g_slist_free(list);
3161 }
3162
3163 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3164 {
3165 size_t len;
3166 ChardevInfoList *list, *start;
3167
3168 if (nb_args != 2) {
3169 return;
3170 }
3171 len = strlen(str);
3172 readline_set_completion_index(rs, len);
3173
3174 start = list = qmp_query_chardev(NULL);
3175 while (list) {
3176 ChardevInfo *chr = list->value;
3177
3178 if (!strncmp(chr->label, str, len)) {
3179 readline_add_completion(rs, chr->label);
3180 }
3181 list = list->next;
3182 }
3183 qapi_free_ChardevInfoList(start);
3184 }
3185
3186 static void ringbuf_completion(ReadLineState *rs, const char *str)
3187 {
3188 size_t len;
3189 ChardevInfoList *list, *start;
3190
3191 len = strlen(str);
3192 readline_set_completion_index(rs, len);
3193
3194 start = list = qmp_query_chardev(NULL);
3195 while (list) {
3196 ChardevInfo *chr_info = list->value;
3197
3198 if (!strncmp(chr_info->label, str, len)) {
3199 CharDriverState *chr = qemu_chr_find(chr_info->label);
3200 if (chr && chr_is_ringbuf(chr)) {
3201 readline_add_completion(rs, chr_info->label);
3202 }
3203 }
3204 list = list->next;
3205 }
3206 qapi_free_ChardevInfoList(start);
3207 }
3208
3209 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3210 {
3211 if (nb_args != 2) {
3212 return;
3213 }
3214 ringbuf_completion(rs, str);
3215 }
3216
3217 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3218 {
3219 size_t len;
3220
3221 if (nb_args != 2) {
3222 return;
3223 }
3224
3225 len = strlen(str);
3226 readline_set_completion_index(rs, len);
3227 peripheral_device_del_completion(rs, str, len);
3228 }
3229
3230 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3231 {
3232 ObjectPropertyInfoList *list, *start;
3233 size_t len;
3234
3235 if (nb_args != 2) {
3236 return;
3237 }
3238 len = strlen(str);
3239 readline_set_completion_index(rs, len);
3240
3241 start = list = qmp_qom_list("/objects", NULL);
3242 while (list) {
3243 ObjectPropertyInfo *info = list->value;
3244
3245 if (!strncmp(info->type, "child<", 5)
3246 && !strncmp(info->name, str, len)) {
3247 readline_add_completion(rs, info->name);
3248 }
3249 list = list->next;
3250 }
3251 qapi_free_ObjectPropertyInfoList(start);
3252 }
3253
3254 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3255 {
3256 int i;
3257 char *sep;
3258 size_t len;
3259
3260 if (nb_args != 2) {
3261 return;
3262 }
3263 sep = strrchr(str, '-');
3264 if (sep) {
3265 str = sep + 1;
3266 }
3267 len = strlen(str);
3268 readline_set_completion_index(rs, len);
3269 for (i = 0; i < Q_KEY_CODE__MAX; i++) {
3270 if (!strncmp(str, QKeyCode_lookup[i], len)) {
3271 readline_add_completion(rs, QKeyCode_lookup[i]);
3272 }
3273 }
3274 }
3275
3276 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3277 {
3278 size_t len;
3279
3280 len = strlen(str);
3281 readline_set_completion_index(rs, len);
3282 if (nb_args == 2) {
3283 NetClientState *ncs[MAX_QUEUE_NUM];
3284 int count, i;
3285 count = qemu_find_net_clients_except(NULL, ncs,
3286 NET_CLIENT_DRIVER_NONE,
3287 MAX_QUEUE_NUM);
3288 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3289 const char *name = ncs[i]->name;
3290 if (!strncmp(str, name, len)) {
3291 readline_add_completion(rs, name);
3292 }
3293 }
3294 } else if (nb_args == 3) {
3295 add_completion_option(rs, str, "on");
3296 add_completion_option(rs, str, "off");
3297 }
3298 }
3299
3300 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3301 {
3302 int len, count, i;
3303 NetClientState *ncs[MAX_QUEUE_NUM];
3304
3305 if (nb_args != 2) {
3306 return;
3307 }
3308
3309 len = strlen(str);
3310 readline_set_completion_index(rs, len);
3311 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
3312 MAX_QUEUE_NUM);
3313 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3314 QemuOpts *opts;
3315 const char *name = ncs[i]->name;
3316 if (strncmp(str, name, len)) {
3317 continue;
3318 }
3319 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3320 if (opts) {
3321 readline_add_completion(rs, name);
3322 }
3323 }
3324 }
3325
3326 void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
3327 {
3328 size_t len;
3329
3330 len = strlen(str);
3331 readline_set_completion_index(rs, len);
3332 if (nb_args == 2) {
3333 TraceEventIter iter;
3334 TraceEvent *ev;
3335 char *pattern = g_strdup_printf("%s*", str);
3336 trace_event_iter_init(&iter, pattern);
3337 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3338 readline_add_completion(rs, trace_event_get_name(ev));
3339 }
3340 g_free(pattern);
3341 }
3342 }
3343
3344 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3345 {
3346 size_t len;
3347
3348 len = strlen(str);
3349 readline_set_completion_index(rs, len);
3350 if (nb_args == 2) {
3351 TraceEventIter iter;
3352 TraceEvent *ev;
3353 char *pattern = g_strdup_printf("%s*", str);
3354 trace_event_iter_init(&iter, pattern);
3355 while ((ev = trace_event_iter_next(&iter)) != NULL) {
3356 readline_add_completion(rs, trace_event_get_name(ev));
3357 }
3358 g_free(pattern);
3359 } else if (nb_args == 3) {
3360 add_completion_option(rs, str, "on");
3361 add_completion_option(rs, str, "off");
3362 }
3363 }
3364
3365 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3366 {
3367 int i;
3368
3369 if (nb_args != 2) {
3370 return;
3371 }
3372 readline_set_completion_index(rs, strlen(str));
3373 for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
3374 add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
3375 }
3376 }
3377
3378 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3379 const char *str)
3380 {
3381 size_t len;
3382
3383 len = strlen(str);
3384 readline_set_completion_index(rs, len);
3385 if (nb_args == 2) {
3386 int i;
3387 for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
3388 const char *name = MigrationCapability_lookup[i];
3389 if (!strncmp(str, name, len)) {
3390 readline_add_completion(rs, name);
3391 }
3392 }
3393 } else if (nb_args == 3) {
3394 add_completion_option(rs, str, "on");
3395 add_completion_option(rs, str, "off");
3396 }
3397 }
3398
3399 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3400 const char *str)
3401 {
3402 size_t len;
3403
3404 len = strlen(str);
3405 readline_set_completion_index(rs, len);
3406 if (nb_args == 2) {
3407 int i;
3408 for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
3409 const char *name = MigrationParameter_lookup[i];
3410 if (!strncmp(str, name, len)) {
3411 readline_add_completion(rs, name);
3412 }
3413 }
3414 }
3415 }
3416
3417 void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
3418 {
3419 int i;
3420 size_t len;
3421 if (nb_args != 2) {
3422 return;
3423 }
3424 len = strlen(str);
3425 readline_set_completion_index(rs, len);
3426 for (i = 0; host_net_devices[i]; i++) {
3427 if (!strncmp(host_net_devices[i], str, len)) {
3428 readline_add_completion(rs, host_net_devices[i]);
3429 }
3430 }
3431 }
3432
3433 void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3434 {
3435 NetClientState *ncs[MAX_QUEUE_NUM];
3436 int count, i, len;
3437
3438 len = strlen(str);
3439 readline_set_completion_index(rs, len);
3440 if (nb_args == 2) {
3441 count = qemu_find_net_clients_except(NULL, ncs,
3442 NET_CLIENT_DRIVER_NONE,
3443 MAX_QUEUE_NUM);
3444 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3445 int id;
3446 char name[16];
3447
3448 if (net_hub_id_for_client(ncs[i], &id)) {
3449 continue;
3450 }
3451 snprintf(name, sizeof(name), "%d", id);
3452 if (!strncmp(str, name, len)) {
3453 readline_add_completion(rs, name);
3454 }
3455 }
3456 return;
3457 } else if (nb_args == 3) {
3458 count = qemu_find_net_clients_except(NULL, ncs,
3459 NET_CLIENT_DRIVER_NIC,
3460 MAX_QUEUE_NUM);
3461 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3462 int id;
3463 const char *name;
3464
3465 if (ncs[i]->info->type == NET_CLIENT_DRIVER_HUBPORT ||
3466 net_hub_id_for_client(ncs[i], &id)) {
3467 continue;
3468 }
3469 name = ncs[i]->name;
3470 if (!strncmp(str, name, len)) {
3471 readline_add_completion(rs, name);
3472 }
3473 }
3474 return;
3475 }
3476 }
3477
3478 static void vm_completion(ReadLineState *rs, const char *str)
3479 {
3480 size_t len;
3481 BlockDriverState *bs;
3482 BdrvNextIterator it;
3483
3484 len = strlen(str);
3485 readline_set_completion_index(rs, len);
3486
3487 for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
3488 SnapshotInfoList *snapshots, *snapshot;
3489 AioContext *ctx = bdrv_get_aio_context(bs);
3490 bool ok = false;
3491
3492 aio_context_acquire(ctx);
3493 if (bdrv_can_snapshot(bs)) {
3494 ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
3495 }
3496 aio_context_release(ctx);
3497 if (!ok) {
3498 continue;
3499 }
3500
3501 snapshot = snapshots;
3502 while (snapshot) {
3503 char *completion = snapshot->value->name;
3504 if (!strncmp(str, completion, len)) {
3505 readline_add_completion(rs, completion);
3506 }
3507 completion = snapshot->value->id;
3508 if (!strncmp(str, completion, len)) {
3509 readline_add_completion(rs, completion);
3510 }
3511 snapshot = snapshot->next;
3512 }
3513 qapi_free_SnapshotInfoList(snapshots);
3514 }
3515
3516 }
3517
3518 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3519 {
3520 if (nb_args == 2) {
3521 vm_completion(rs, str);
3522 }
3523 }
3524
3525 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3526 {
3527 if (nb_args == 2) {
3528 vm_completion(rs, str);
3529 }
3530 }
3531
3532 static void monitor_find_completion_by_table(Monitor *mon,
3533 const mon_cmd_t *cmd_table,
3534 char **args,
3535 int nb_args)
3536 {
3537 const char *cmdname;
3538 int i;
3539 const char *ptype, *str, *name;
3540 const mon_cmd_t *cmd;
3541 BlockBackend *blk = NULL;
3542
3543 if (nb_args <= 1) {
3544 /* command completion */
3545 if (nb_args == 0)
3546 cmdname = "";
3547 else
3548 cmdname = args[0];
3549 readline_set_completion_index(mon->rs, strlen(cmdname));
3550 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3551 cmd_completion(mon, cmdname, cmd->name);
3552 }
3553 } else {
3554 /* find the command */
3555 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3556 if (compare_cmd(args[0], cmd->name)) {
3557 break;
3558 }
3559 }
3560 if (!cmd->name) {
3561 return;
3562 }
3563
3564 if (cmd->sub_table) {
3565 /* do the job again */
3566 monitor_find_completion_by_table(mon, cmd->sub_table,
3567 &args[1], nb_args - 1);
3568 return;
3569 }
3570 if (cmd->command_completion) {
3571 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3572 return;
3573 }
3574
3575 ptype = next_arg_type(cmd->args_type);
3576 for(i = 0; i < nb_args - 2; i++) {
3577 if (*ptype != '\0') {
3578 ptype = next_arg_type(ptype);
3579 while (*ptype == '?')
3580 ptype = next_arg_type(ptype);
3581 }
3582 }
3583 str = args[nb_args - 1];
3584 while (*ptype == '-' && ptype[1] != '\0') {
3585 ptype = next_arg_type(ptype);
3586 }
3587 switch(*ptype) {
3588 case 'F':
3589 /* file completion */
3590 readline_set_completion_index(mon->rs, strlen(str));
3591 file_completion(mon, str);
3592 break;
3593 case 'B':
3594 /* block device name completion */
3595 readline_set_completion_index(mon->rs, strlen(str));
3596 while ((blk = blk_next(blk)) != NULL) {
3597 name = blk_name(blk);
3598 if (str[0] == '\0' ||
3599 !strncmp(name, str, strlen(str))) {
3600 readline_add_completion(mon->rs, name);
3601 }
3602 }
3603 break;
3604 case 's':
3605 case 'S':
3606 if (!strcmp(cmd->name, "help|?")) {
3607 monitor_find_completion_by_table(mon, cmd_table,
3608 &args[1], nb_args - 1);
3609 }
3610 break;
3611 default:
3612 break;
3613 }
3614 }
3615 }
3616
3617 static void monitor_find_completion(void *opaque,
3618 const char *cmdline)
3619 {
3620 Monitor *mon = opaque;
3621 char *args[MAX_ARGS];
3622 int nb_args, len;
3623
3624 /* 1. parse the cmdline */
3625 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
3626 return;
3627 }
3628
3629 /* if the line ends with a space, it means we want to complete the
3630 next arg */
3631 len = strlen(cmdline);
3632 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3633 if (nb_args >= MAX_ARGS) {
3634 goto cleanup;
3635 }
3636 args[nb_args++] = g_strdup("");
3637 }
3638
3639 /* 2. auto complete according to args */
3640 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
3641
3642 cleanup:
3643 free_cmdline_args(args, nb_args);
3644 }
3645
3646 static int monitor_can_read(void *opaque)
3647 {
3648 Monitor *mon = opaque;
3649
3650 return (mon->suspend_cnt == 0) ? 1 : 0;
3651 }
3652
3653 static bool invalid_qmp_mode(const Monitor *mon, const char *cmd,
3654 Error **errp)
3655 {
3656 bool is_cap = g_str_equal(cmd, "qmp_capabilities");
3657
3658 if (is_cap && mon->qmp.in_command_mode) {
3659 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3660 "Capabilities negotiation is already complete, command "
3661 "'%s' ignored", cmd);
3662 return true;
3663 }
3664 if (!is_cap && !mon->qmp.in_command_mode) {
3665 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3666 "Expecting capabilities negotiation with "
3667 "'qmp_capabilities' before command '%s'", cmd);
3668 return true;
3669 }
3670 return false;
3671 }
3672
3673 /*
3674 * Input object checking rules
3675 *
3676 * 1. Input object must be a dict
3677 * 2. The "execute" key must exist
3678 * 3. The "execute" key must be a string
3679 * 4. If the "arguments" key exists, it must be a dict
3680 * 5. If the "id" key exists, it can be anything (ie. json-value)
3681 * 6. Any argument not listed above is considered invalid
3682 */
3683 static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp)
3684 {
3685 const QDictEntry *ent;
3686 int has_exec_key = 0;
3687 QDict *input_dict;
3688
3689 if (qobject_type(input_obj) != QTYPE_QDICT) {
3690 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object");
3691 return NULL;
3692 }
3693
3694 input_dict = qobject_to_qdict(input_obj);
3695
3696 for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
3697 const char *arg_name = qdict_entry_key(ent);
3698 const QObject *arg_obj = qdict_entry_value(ent);
3699
3700 if (!strcmp(arg_name, "execute")) {
3701 if (qobject_type(arg_obj) != QTYPE_QSTRING) {
3702 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3703 "execute", "string");
3704 return NULL;
3705 }
3706 has_exec_key = 1;
3707 } else if (!strcmp(arg_name, "arguments")) {
3708 if (qobject_type(arg_obj) != QTYPE_QDICT) {
3709 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3710 "arguments", "object");
3711 return NULL;
3712 }
3713 } else if (!strcmp(arg_name, "id")) {
3714 /* Any string is acceptable as "id", so nothing to check */
3715 } else {
3716 error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name);
3717 return NULL;
3718 }
3719 }
3720
3721 if (!has_exec_key) {
3722 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute");
3723 return NULL;
3724 }
3725
3726 return input_dict;
3727 }
3728
3729 static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
3730 {
3731 QObject *req, *rsp = NULL, *id = NULL;
3732 QDict *qdict = NULL;
3733 const char *cmd_name;
3734 Monitor *mon = cur_mon;
3735 Error *err = NULL;
3736
3737 req = json_parser_parse_err(tokens, NULL, &err);
3738 if (err || !req || qobject_type(req) != QTYPE_QDICT) {
3739 if (!err) {
3740 error_setg(&err, QERR_JSON_PARSING);
3741 }
3742 goto err_out;
3743 }
3744
3745 qdict = qmp_check_input_obj(req, &err);
3746 if (!qdict) {
3747 goto err_out;
3748 }
3749
3750 id = qdict_get(qdict, "id");
3751 qobject_incref(id);
3752 qdict_del(qdict, "id");
3753
3754 cmd_name = qdict_get_str(qdict, "execute");
3755 trace_handle_qmp_command(mon, cmd_name);
3756
3757 if (invalid_qmp_mode(mon, cmd_name, &err)) {
3758 goto err_out;
3759 }
3760
3761 rsp = qmp_dispatch(req);
3762
3763 err_out:
3764 if (err) {
3765 qdict = qdict_new();
3766 qdict_put_obj(qdict, "error", qmp_build_error_object(err));
3767 error_free(err);
3768 rsp = QOBJECT(qdict);
3769 }
3770
3771 if (rsp) {
3772 if (id) {
3773 qdict_put_obj(qobject_to_qdict(rsp), "id", id);
3774 id = NULL;
3775 }
3776
3777 monitor_json_emitter(mon, rsp);
3778 }
3779
3780 qobject_decref(id);
3781 qobject_decref(rsp);
3782 qobject_decref(req);
3783 }
3784
3785 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
3786 {
3787 Monitor *old_mon = cur_mon;
3788
3789 cur_mon = opaque;
3790
3791 json_message_parser_feed(&cur_mon->qmp.parser, (const char *) buf, size);
3792
3793 cur_mon = old_mon;
3794 }
3795
3796 static void monitor_read(void *opaque, const uint8_t *buf, int size)
3797 {
3798 Monitor *old_mon = cur_mon;
3799 int i;
3800
3801 cur_mon = opaque;
3802
3803 if (cur_mon->rs) {
3804 for (i = 0; i < size; i++)
3805 readline_handle_byte(cur_mon->rs, buf[i]);
3806 } else {
3807 if (size == 0 || buf[size - 1] != 0)
3808 monitor_printf(cur_mon, "corrupted command\n");
3809 else
3810 handle_hmp_command(cur_mon, (char *)buf);
3811 }
3812
3813 cur_mon = old_mon;
3814 }
3815
3816 static void monitor_command_cb(void *opaque, const char *cmdline,
3817 void *readline_opaque)
3818 {
3819 Monitor *mon = opaque;
3820
3821 monitor_suspend(mon);
3822 handle_hmp_command(mon, cmdline);
3823 monitor_resume(mon);
3824 }
3825
3826 int monitor_suspend(Monitor *mon)
3827 {
3828 if (!mon->rs)
3829 return -ENOTTY;
3830 mon->suspend_cnt++;
3831 return 0;
3832 }
3833
3834 void monitor_resume(Monitor *mon)
3835 {
3836 if (!mon->rs)
3837 return;
3838 if (--mon->suspend_cnt == 0)
3839 readline_show_prompt(mon->rs);
3840 }
3841
3842 static QObject *get_qmp_greeting(void)
3843 {
3844 QObject *ver = NULL;
3845
3846 qmp_marshal_query_version(NULL, &ver, NULL);
3847
3848 return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': []}}",
3849 ver);
3850 }
3851
3852 static void monitor_qmp_event(void *opaque, int event)
3853 {
3854 QObject *data;
3855 Monitor *mon = opaque;
3856
3857 switch (event) {
3858 case CHR_EVENT_OPENED:
3859 mon->qmp.in_command_mode = false;
3860 data = get_qmp_greeting();
3861 monitor_json_emitter(mon, data);
3862 qobject_decref(data);
3863 mon_refcount++;
3864 break;
3865 case CHR_EVENT_CLOSED:
3866 json_message_parser_destroy(&mon->qmp.parser);
3867 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
3868 mon_refcount--;
3869 monitor_fdsets_cleanup();
3870 break;
3871 }
3872 }
3873
3874 static void monitor_event(void *opaque, int event)
3875 {
3876 Monitor *mon = opaque;
3877
3878 switch (event) {
3879 case CHR_EVENT_MUX_IN:
3880 qemu_mutex_lock(&mon->out_lock);
3881 mon->mux_out = 0;
3882 qemu_mutex_unlock(&mon->out_lock);
3883 if (mon->reset_seen) {
3884 readline_restart(mon->rs);
3885 monitor_resume(mon);
3886 monitor_flush(mon);
3887 } else {
3888 mon->suspend_cnt = 0;
3889 }
3890 break;
3891
3892 case CHR_EVENT_MUX_OUT:
3893 if (mon->reset_seen) {
3894 if (mon->suspend_cnt == 0) {
3895 monitor_printf(mon, "\n");
3896 }
3897 monitor_flush(mon);
3898 monitor_suspend(mon);
3899 } else {
3900 mon->suspend_cnt++;
3901 }
3902 qemu_mutex_lock(&mon->out_lock);
3903 mon->mux_out = 1;
3904 qemu_mutex_unlock(&mon->out_lock);
3905 break;
3906
3907 case CHR_EVENT_OPENED:
3908 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
3909 "information\n", QEMU_VERSION);
3910 if (!mon->mux_out) {
3911 readline_restart(mon->rs);
3912 readline_show_prompt(mon->rs);
3913 }
3914 mon->reset_seen = 1;
3915 mon_refcount++;
3916 break;
3917
3918 case CHR_EVENT_CLOSED:
3919 mon_refcount--;
3920 monitor_fdsets_cleanup();
3921 break;
3922 }
3923 }
3924
3925 static int
3926 compare_mon_cmd(const void *a, const void *b)
3927 {
3928 return strcmp(((const mon_cmd_t *)a)->name,
3929 ((const mon_cmd_t *)b)->name);
3930 }
3931
3932 static void sortcmdlist(void)
3933 {
3934 int array_num;
3935 int elem_size = sizeof(mon_cmd_t);
3936
3937 array_num = sizeof(mon_cmds)/elem_size-1;
3938 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
3939
3940 array_num = sizeof(info_cmds)/elem_size-1;
3941 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
3942 }
3943
3944 /* These functions just adapt the readline interface in a typesafe way. We
3945 * could cast function pointers but that discards compiler checks.
3946 */
3947 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
3948 const char *fmt, ...)
3949 {
3950 va_list ap;
3951 va_start(ap, fmt);
3952 monitor_vprintf(opaque, fmt, ap);
3953 va_end(ap);
3954 }
3955
3956 static void monitor_readline_flush(void *opaque)
3957 {
3958 monitor_flush(opaque);
3959 }
3960
3961 static void __attribute__((constructor)) monitor_lock_init(void)
3962 {
3963 qemu_mutex_init(&monitor_lock);
3964 }
3965
3966 void monitor_init(CharDriverState *chr, int flags)
3967 {
3968 static int is_first_init = 1;
3969 Monitor *mon;
3970
3971 if (is_first_init) {
3972 monitor_qapi_event_init();
3973 sortcmdlist();
3974 is_first_init = 0;
3975 }
3976
3977 mon = g_malloc(sizeof(*mon));
3978 monitor_data_init(mon);
3979
3980 mon->chr = chr;
3981 mon->flags = flags;
3982 if (flags & MONITOR_USE_READLINE) {
3983 mon->rs = readline_init(monitor_readline_printf,
3984 monitor_readline_flush,
3985 mon,
3986 monitor_find_completion);
3987 monitor_read_command(mon, 0);
3988 }
3989
3990 if (monitor_is_qmp(mon)) {
3991 qemu_chr_add_handlers(chr, monitor_can_read, monitor_qmp_read,
3992 monitor_qmp_event, mon);
3993 qemu_chr_fe_set_echo(chr, true);
3994 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
3995 } else {
3996 qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
3997 monitor_event, mon);
3998 }
3999
4000 qemu_mutex_lock(&monitor_lock);
4001 QLIST_INSERT_HEAD(&mon_list, mon, entry);
4002 qemu_mutex_unlock(&monitor_lock);
4003 }
4004
4005 void monitor_cleanup(void)
4006 {
4007 Monitor *mon, *next;
4008
4009 qemu_mutex_lock(&monitor_lock);
4010 QLIST_FOREACH_SAFE(mon, &mon_list, entry, next) {
4011 QLIST_REMOVE(mon, entry);
4012 monitor_data_destroy(mon);
4013 g_free(mon);
4014 }
4015 qemu_mutex_unlock(&monitor_lock);
4016 }
4017
4018 static void bdrv_password_cb(void *opaque, const char *password,
4019 void *readline_opaque)
4020 {
4021 Monitor *mon = opaque;
4022 BlockDriverState *bs = readline_opaque;
4023 int ret = 0;
4024 Error *local_err = NULL;
4025
4026 bdrv_add_key(bs, password, &local_err);
4027 if (local_err) {
4028 error_report_err(local_err);
4029 ret = -EPERM;
4030 }
4031 if (mon->password_completion_cb)
4032 mon->password_completion_cb(mon->password_opaque, ret);
4033
4034 monitor_read_command(mon, 1);
4035 }
4036
4037 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4038 BlockCompletionFunc *completion_cb,
4039 void *opaque)
4040 {
4041 int err;
4042
4043 monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4044 bdrv_get_encrypted_filename(bs));
4045
4046 mon->password_completion_cb = completion_cb;
4047 mon->password_opaque = opaque;
4048
4049 err = monitor_read_password(mon, bdrv_password_cb, bs);
4050
4051 if (err && completion_cb)
4052 completion_cb(opaque, err);
4053
4054 return err;
4055 }
4056
4057 int monitor_read_block_device_key(Monitor *mon, const char *device,
4058 BlockCompletionFunc *completion_cb,
4059 void *opaque)
4060 {
4061 Error *err = NULL;
4062 BlockBackend *blk;
4063
4064 blk = blk_by_name(device);
4065 if (!blk) {
4066 monitor_printf(mon, "Device not found %s\n", device);
4067 return -1;
4068 }
4069 if (!blk_bs(blk)) {
4070 monitor_printf(mon, "Device '%s' has no medium\n", device);
4071 return -1;
4072 }
4073
4074 bdrv_add_key(blk_bs(blk), NULL, &err);
4075 if (err) {
4076 error_free(err);
4077 return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque);
4078 }
4079
4080 if (completion_cb) {
4081 completion_cb(opaque, 0);
4082 }
4083 return 0;
4084 }
4085
4086 QemuOptsList qemu_mon_opts = {
4087 .name = "mon",
4088 .implied_opt_name = "chardev",
4089 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4090 .desc = {
4091 {
4092 .name = "mode",
4093 .type = QEMU_OPT_STRING,
4094 },{
4095 .name = "chardev",
4096 .type = QEMU_OPT_STRING,
4097 },{
4098 .name = "default",
4099 .type = QEMU_OPT_BOOL,
4100 },{
4101 .name = "pretty",
4102 .type = QEMU_OPT_BOOL,
4103 },
4104 { /* end of list */ }
4105 },
4106 };
4107
4108 #ifndef TARGET_I386
4109 void qmp_rtc_reset_reinjection(Error **errp)
4110 {
4111 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4112 }
4113 #endif
4114
4115 #ifndef TARGET_S390X
4116 void qmp_dump_skeys(const char *filename, Error **errp)
4117 {
4118 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4119 }
4120 #endif
4121
4122 #ifndef TARGET_ARM
4123 GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
4124 {
4125 error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
4126 return NULL;
4127 }
4128 #endif
4129
4130 HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
4131 {
4132 MachineState *ms = MACHINE(qdev_get_machine());
4133 MachineClass *mc = MACHINE_GET_CLASS(ms);
4134
4135 if (!mc->query_hotpluggable_cpus) {
4136 error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
4137 return NULL;
4138 }
4139
4140 return mc->query_hotpluggable_cpus(ms);
4141 }
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