vnc: add vnc_width+vnc_height helpers
[qemu/ar7.git] / monitor.c
blob6cd747f4f96cc77d785f65f93c21be37d7d93890
1 /*
2 * QEMU monitor
4 * Copyright (c) 2003-2004 Fabrice Bellard
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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.
24 #include <dirent.h>
25 #include "hw/hw.h"
26 #include "monitor/qdev.h"
27 #include "hw/usb.h"
28 #include "hw/i386/pc.h"
29 #include "hw/pci/pci.h"
30 #include "sysemu/watchdog.h"
31 #include "hw/loader.h"
32 #include "exec/gdbstub.h"
33 #include "net/net.h"
34 #include "net/slirp.h"
35 #include "sysemu/char.h"
36 #include "ui/qemu-spice.h"
37 #include "sysemu/sysemu.h"
38 #include "sysemu/numa.h"
39 #include "monitor/monitor.h"
40 #include "qemu/readline.h"
41 #include "ui/console.h"
42 #include "ui/input.h"
43 #include "sysemu/blockdev.h"
44 #include "audio/audio.h"
45 #include "disas/disas.h"
46 #include "sysemu/balloon.h"
47 #include "qemu/timer.h"
48 #include "migration/migration.h"
49 #include "sysemu/kvm.h"
50 #include "qemu/acl.h"
51 #include "sysemu/tpm.h"
52 #include "qapi/qmp/qerror.h"
53 #include "qapi/qmp/qint.h"
54 #include "qapi/qmp/qfloat.h"
55 #include "qapi/qmp/qlist.h"
56 #include "qapi/qmp/qbool.h"
57 #include "qapi/qmp/qstring.h"
58 #include "qapi/qmp/qjson.h"
59 #include "qapi/qmp/json-streamer.h"
60 #include "qapi/qmp/json-parser.h"
61 #include <qom/object_interfaces.h>
62 #include "qemu/osdep.h"
63 #include "cpu.h"
64 #include "trace.h"
65 #include "trace/control.h"
66 #include "monitor/hmp-target.h"
67 #ifdef CONFIG_TRACE_SIMPLE
68 #include "trace/simple.h"
69 #endif
70 #include "exec/memory.h"
71 #include "qmp-commands.h"
72 #include "hmp.h"
73 #include "qemu/thread.h"
74 #include "block/qapi.h"
75 #include "qapi/qmp-event.h"
76 #include "qapi-event.h"
77 #include "qmp-introspect.h"
78 #include "sysemu/block-backend.h"
80 /* for hmp_info_irq/pic */
81 #if defined(TARGET_SPARC)
82 #include "hw/sparc/sun4m.h"
83 #endif
84 #include "hw/lm32/lm32_pic.h"
86 #if defined(TARGET_S390X)
87 #include "hw/s390x/storage-keys.h"
88 #endif
91 * Supported types:
93 * 'F' filename
94 * 'B' block device name
95 * 's' string (accept optional quote)
96 * 'S' it just appends the rest of the string (accept optional quote)
97 * 'O' option string of the form NAME=VALUE,...
98 * parsed according to QemuOptsList given by its name
99 * Example: 'device:O' uses qemu_device_opts.
100 * Restriction: only lists with empty desc are supported
101 * TODO lift the restriction
102 * 'i' 32 bit integer
103 * 'l' target long (32 or 64 bit)
104 * 'M' Non-negative target long (32 or 64 bit), in user mode the
105 * value is multiplied by 2^20 (think Mebibyte)
106 * 'o' octets (aka bytes)
107 * user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
108 * K, k suffix, which multiplies the value by 2^60 for suffixes E
109 * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
110 * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
111 * 'T' double
112 * user mode accepts an optional ms, us, ns suffix,
113 * which divides the value by 1e3, 1e6, 1e9, respectively
114 * '/' optional gdb-like print format (like "/10x")
116 * '?' optional type (for all types, except '/')
117 * '.' other form of optional type (for 'i' and 'l')
118 * 'b' boolean
119 * user mode accepts "on" or "off"
120 * '-' optional parameter (eg. '-f')
124 typedef struct mon_cmd_t {
125 const char *name;
126 const char *args_type;
127 const char *params;
128 const char *help;
129 union {
130 void (*cmd)(Monitor *mon, const QDict *qdict);
131 void (*cmd_new)(QDict *params, QObject **ret_data, Error **errp);
132 } mhandler;
133 /* @sub_table is a list of 2nd level of commands. If it do not exist,
134 * mhandler should be used. If it exist, sub_table[?].mhandler should be
135 * used, and mhandler of 1st level plays the role of help function.
137 struct mon_cmd_t *sub_table;
138 void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
139 } mon_cmd_t;
141 /* file descriptors passed via SCM_RIGHTS */
142 typedef struct mon_fd_t mon_fd_t;
143 struct mon_fd_t {
144 char *name;
145 int fd;
146 QLIST_ENTRY(mon_fd_t) next;
149 /* file descriptor associated with a file descriptor set */
150 typedef struct MonFdsetFd MonFdsetFd;
151 struct MonFdsetFd {
152 int fd;
153 bool removed;
154 char *opaque;
155 QLIST_ENTRY(MonFdsetFd) next;
158 /* file descriptor set containing fds passed via SCM_RIGHTS */
159 typedef struct MonFdset MonFdset;
160 struct MonFdset {
161 int64_t id;
162 QLIST_HEAD(, MonFdsetFd) fds;
163 QLIST_HEAD(, MonFdsetFd) dup_fds;
164 QLIST_ENTRY(MonFdset) next;
167 typedef struct {
168 QObject *id;
169 JSONMessageParser parser;
171 * When a client connects, we're in capabilities negotiation mode.
172 * When command qmp_capabilities succeeds, we go into command
173 * mode.
175 bool in_command_mode; /* are we in command mode? */
176 } MonitorQMP;
179 * To prevent flooding clients, events can be throttled. The
180 * throttling is calculated globally, rather than per-Monitor
181 * instance.
183 typedef struct MonitorQAPIEventState {
184 QAPIEvent event; /* Throttling state for this event type and... */
185 QDict *data; /* ... data, see qapi_event_throttle_equal() */
186 QEMUTimer *timer; /* Timer for handling delayed events */
187 QDict *qdict; /* Delayed event (if any) */
188 } MonitorQAPIEventState;
190 typedef struct {
191 int64_t rate; /* Minimum time (in ns) between two events */
192 } MonitorQAPIEventConf;
194 struct Monitor {
195 CharDriverState *chr;
196 int reset_seen;
197 int flags;
198 int suspend_cnt;
199 bool skip_flush;
201 QemuMutex out_lock;
202 QString *outbuf;
203 guint out_watch;
205 /* Read under either BQL or out_lock, written with BQL+out_lock. */
206 int mux_out;
208 ReadLineState *rs;
209 MonitorQMP qmp;
210 CPUState *mon_cpu;
211 BlockCompletionFunc *password_completion_cb;
212 void *password_opaque;
213 mon_cmd_t *cmd_table;
214 QLIST_HEAD(,mon_fd_t) fds;
215 QLIST_ENTRY(Monitor) entry;
218 /* QMP checker flags */
219 #define QMP_ACCEPT_UNKNOWNS 1
221 /* Protects mon_list, monitor_event_state. */
222 static QemuMutex monitor_lock;
224 static QLIST_HEAD(mon_list, Monitor) mon_list;
225 static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
226 static int mon_refcount;
228 static mon_cmd_t mon_cmds[];
229 static mon_cmd_t info_cmds[];
231 static const mon_cmd_t qmp_cmds[];
233 Monitor *cur_mon;
235 static void monitor_command_cb(void *opaque, const char *cmdline,
236 void *readline_opaque);
239 * Is @mon a QMP monitor?
241 static inline bool monitor_is_qmp(const Monitor *mon)
243 return (mon->flags & MONITOR_USE_CONTROL);
247 * Is the current monitor, if any, a QMP monitor?
249 bool monitor_cur_is_qmp(void)
251 return cur_mon && monitor_is_qmp(cur_mon);
254 void monitor_read_command(Monitor *mon, int show_prompt)
256 if (!mon->rs)
257 return;
259 readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
260 if (show_prompt)
261 readline_show_prompt(mon->rs);
264 int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
265 void *opaque)
267 if (mon->rs) {
268 readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
269 /* prompt is printed on return from the command handler */
270 return 0;
271 } else {
272 monitor_printf(mon, "terminal does not support password prompting\n");
273 return -ENOTTY;
277 static void monitor_flush_locked(Monitor *mon);
279 static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
280 void *opaque)
282 Monitor *mon = opaque;
284 qemu_mutex_lock(&mon->out_lock);
285 mon->out_watch = 0;
286 monitor_flush_locked(mon);
287 qemu_mutex_unlock(&mon->out_lock);
288 return FALSE;
291 /* Called with mon->out_lock held. */
292 static void monitor_flush_locked(Monitor *mon)
294 int rc;
295 size_t len;
296 const char *buf;
298 if (mon->skip_flush) {
299 return;
302 buf = qstring_get_str(mon->outbuf);
303 len = qstring_get_length(mon->outbuf);
305 if (len && !mon->mux_out) {
306 rc = qemu_chr_fe_write(mon->chr, (const uint8_t *) buf, len);
307 if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
308 /* all flushed or error */
309 QDECREF(mon->outbuf);
310 mon->outbuf = qstring_new();
311 return;
313 if (rc > 0) {
314 /* partinal write */
315 QString *tmp = qstring_from_str(buf + rc);
316 QDECREF(mon->outbuf);
317 mon->outbuf = tmp;
319 if (mon->out_watch == 0) {
320 mon->out_watch = qemu_chr_fe_add_watch(mon->chr, G_IO_OUT|G_IO_HUP,
321 monitor_unblocked, mon);
326 void monitor_flush(Monitor *mon)
328 qemu_mutex_lock(&mon->out_lock);
329 monitor_flush_locked(mon);
330 qemu_mutex_unlock(&mon->out_lock);
333 /* flush at every end of line */
334 static void monitor_puts(Monitor *mon, const char *str)
336 char c;
338 qemu_mutex_lock(&mon->out_lock);
339 for(;;) {
340 c = *str++;
341 if (c == '\0')
342 break;
343 if (c == '\n') {
344 qstring_append_chr(mon->outbuf, '\r');
346 qstring_append_chr(mon->outbuf, c);
347 if (c == '\n') {
348 monitor_flush_locked(mon);
351 qemu_mutex_unlock(&mon->out_lock);
354 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
356 char *buf;
358 if (!mon)
359 return;
361 if (monitor_is_qmp(mon)) {
362 return;
365 buf = g_strdup_vprintf(fmt, ap);
366 monitor_puts(mon, buf);
367 g_free(buf);
370 void monitor_printf(Monitor *mon, const char *fmt, ...)
372 va_list ap;
373 va_start(ap, fmt);
374 monitor_vprintf(mon, fmt, ap);
375 va_end(ap);
378 int monitor_fprintf(FILE *stream, const char *fmt, ...)
380 va_list ap;
381 va_start(ap, fmt);
382 monitor_vprintf((Monitor *)stream, fmt, ap);
383 va_end(ap);
384 return 0;
387 static void monitor_json_emitter(Monitor *mon, const QObject *data)
389 QString *json;
391 json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
392 qobject_to_json(data);
393 assert(json != NULL);
395 qstring_append_chr(json, '\n');
396 monitor_puts(mon, qstring_get_str(json));
398 QDECREF(json);
401 static QDict *build_qmp_error_dict(Error *err)
403 QObject *obj;
405 obj = qobject_from_jsonf("{ 'error': { 'class': %s, 'desc': %s } }",
406 ErrorClass_lookup[error_get_class(err)],
407 error_get_pretty(err));
409 return qobject_to_qdict(obj);
412 static void monitor_protocol_emitter(Monitor *mon, QObject *data,
413 Error *err)
415 QDict *qmp;
417 trace_monitor_protocol_emitter(mon);
419 if (!err) {
420 /* success response */
421 qmp = qdict_new();
422 if (data) {
423 qobject_incref(data);
424 qdict_put_obj(qmp, "return", data);
425 } else {
426 /* return an empty QDict by default */
427 qdict_put(qmp, "return", qdict_new());
429 } else {
430 /* error response */
431 qmp = build_qmp_error_dict(err);
434 if (mon->qmp.id) {
435 qdict_put_obj(qmp, "id", mon->qmp.id);
436 mon->qmp.id = NULL;
439 monitor_json_emitter(mon, QOBJECT(qmp));
440 QDECREF(qmp);
444 static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT_MAX] = {
445 /* Limit guest-triggerable events to 1 per second */
446 [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
447 [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
448 [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
449 [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
450 [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
451 [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
454 GHashTable *monitor_qapi_event_state;
457 * Emits the event to every monitor instance, @event is only used for trace
458 * Called with monitor_lock held.
460 static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
462 Monitor *mon;
464 trace_monitor_protocol_event_emit(event, qdict);
465 QLIST_FOREACH(mon, &mon_list, entry) {
466 if (monitor_is_qmp(mon) && mon->qmp.in_command_mode) {
467 monitor_json_emitter(mon, QOBJECT(qdict));
472 static void monitor_qapi_event_handler(void *opaque);
475 * Queue a new event for emission to Monitor instances,
476 * applying any rate limiting if required.
478 static void
479 monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp)
481 MonitorQAPIEventConf *evconf;
482 MonitorQAPIEventState *evstate;
484 assert(event < QAPI_EVENT_MAX);
485 evconf = &monitor_qapi_event_conf[event];
486 trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
488 qemu_mutex_lock(&monitor_lock);
490 if (!evconf->rate) {
491 /* Unthrottled event */
492 monitor_qapi_event_emit(event, qdict);
493 } else {
494 QDict *data = qobject_to_qdict(qdict_get(qdict, "data"));
495 MonitorQAPIEventState key = { .event = event, .data = data };
497 evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
498 assert(!evstate || timer_pending(evstate->timer));
500 if (evstate) {
502 * Timer is pending for (at least) evconf->rate ns after
503 * last send. Store event for sending when timer fires,
504 * replacing a prior stored event if any.
506 QDECREF(evstate->qdict);
507 evstate->qdict = qdict;
508 QINCREF(evstate->qdict);
509 } else {
511 * Last send was (at least) evconf->rate ns ago.
512 * Send immediately, and arm the timer to call
513 * monitor_qapi_event_handler() in evconf->rate ns. Any
514 * events arriving before then will be delayed until then.
516 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
518 monitor_qapi_event_emit(event, qdict);
520 evstate = g_new(MonitorQAPIEventState, 1);
521 evstate->event = event;
522 evstate->data = data;
523 QINCREF(evstate->data);
524 evstate->qdict = NULL;
525 evstate->timer = timer_new_ns(QEMU_CLOCK_REALTIME,
526 monitor_qapi_event_handler,
527 evstate);
528 g_hash_table_add(monitor_qapi_event_state, evstate);
529 timer_mod_ns(evstate->timer, now + evconf->rate);
533 qemu_mutex_unlock(&monitor_lock);
537 * This function runs evconf->rate ns after sending a throttled
538 * event.
539 * If another event has since been stored, send it.
541 static void monitor_qapi_event_handler(void *opaque)
543 MonitorQAPIEventState *evstate = opaque;
544 MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
546 trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
547 qemu_mutex_lock(&monitor_lock);
549 if (evstate->qdict) {
550 int64_t now = qemu_clock_get_ns(QEMU_CLOCK_REALTIME);
552 monitor_qapi_event_emit(evstate->event, evstate->qdict);
553 QDECREF(evstate->qdict);
554 evstate->qdict = NULL;
555 timer_mod_ns(evstate->timer, now + evconf->rate);
556 } else {
557 g_hash_table_remove(monitor_qapi_event_state, evstate);
558 QDECREF(evstate->data);
559 timer_free(evstate->timer);
560 g_free(evstate);
563 qemu_mutex_unlock(&monitor_lock);
566 static unsigned int qapi_event_throttle_hash(const void *key)
568 const MonitorQAPIEventState *evstate = key;
569 unsigned int hash = evstate->event * 255;
571 if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
572 hash += g_str_hash(qdict_get_str(evstate->data, "id"));
575 return hash;
578 static gboolean qapi_event_throttle_equal(const void *a, const void *b)
580 const MonitorQAPIEventState *eva = a;
581 const MonitorQAPIEventState *evb = b;
583 if (eva->event != evb->event) {
584 return FALSE;
587 if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
588 return !strcmp(qdict_get_str(eva->data, "id"),
589 qdict_get_str(evb->data, "id"));
592 return TRUE;
595 static void monitor_qapi_event_init(void)
597 monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
598 qapi_event_throttle_equal);
599 qmp_event_set_func_emit(monitor_qapi_event_queue);
602 static void qmp_capabilities(QDict *params, QObject **ret_data, Error **errp)
604 cur_mon->qmp.in_command_mode = true;
607 static void handle_hmp_command(Monitor *mon, const char *cmdline);
609 static void monitor_data_init(Monitor *mon)
611 memset(mon, 0, sizeof(Monitor));
612 qemu_mutex_init(&mon->out_lock);
613 mon->outbuf = qstring_new();
614 /* Use *mon_cmds by default. */
615 mon->cmd_table = mon_cmds;
618 static void monitor_data_destroy(Monitor *mon)
620 QDECREF(mon->outbuf);
621 qemu_mutex_destroy(&mon->out_lock);
624 char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
625 int64_t cpu_index, Error **errp)
627 char *output = NULL;
628 Monitor *old_mon, hmp;
630 monitor_data_init(&hmp);
631 hmp.skip_flush = true;
633 old_mon = cur_mon;
634 cur_mon = &hmp;
636 if (has_cpu_index) {
637 int ret = monitor_set_cpu(cpu_index);
638 if (ret < 0) {
639 cur_mon = old_mon;
640 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
641 "a CPU number");
642 goto out;
646 handle_hmp_command(&hmp, command_line);
647 cur_mon = old_mon;
649 qemu_mutex_lock(&hmp.out_lock);
650 if (qstring_get_length(hmp.outbuf) > 0) {
651 output = g_strdup(qstring_get_str(hmp.outbuf));
652 } else {
653 output = g_strdup("");
655 qemu_mutex_unlock(&hmp.out_lock);
657 out:
658 monitor_data_destroy(&hmp);
659 return output;
662 static int compare_cmd(const char *name, const char *list)
664 const char *p, *pstart;
665 int len;
666 len = strlen(name);
667 p = list;
668 for(;;) {
669 pstart = p;
670 p = strchr(p, '|');
671 if (!p)
672 p = pstart + strlen(pstart);
673 if ((p - pstart) == len && !memcmp(pstart, name, len))
674 return 1;
675 if (*p == '\0')
676 break;
677 p++;
679 return 0;
682 static int get_str(char *buf, int buf_size, const char **pp)
684 const char *p;
685 char *q;
686 int c;
688 q = buf;
689 p = *pp;
690 while (qemu_isspace(*p)) {
691 p++;
693 if (*p == '\0') {
694 fail:
695 *q = '\0';
696 *pp = p;
697 return -1;
699 if (*p == '\"') {
700 p++;
701 while (*p != '\0' && *p != '\"') {
702 if (*p == '\\') {
703 p++;
704 c = *p++;
705 switch (c) {
706 case 'n':
707 c = '\n';
708 break;
709 case 'r':
710 c = '\r';
711 break;
712 case '\\':
713 case '\'':
714 case '\"':
715 break;
716 default:
717 printf("unsupported escape code: '\\%c'\n", c);
718 goto fail;
720 if ((q - buf) < buf_size - 1) {
721 *q++ = c;
723 } else {
724 if ((q - buf) < buf_size - 1) {
725 *q++ = *p;
727 p++;
730 if (*p != '\"') {
731 printf("unterminated string\n");
732 goto fail;
734 p++;
735 } else {
736 while (*p != '\0' && !qemu_isspace(*p)) {
737 if ((q - buf) < buf_size - 1) {
738 *q++ = *p;
740 p++;
743 *q = '\0';
744 *pp = p;
745 return 0;
748 #define MAX_ARGS 16
750 static void free_cmdline_args(char **args, int nb_args)
752 int i;
754 assert(nb_args <= MAX_ARGS);
756 for (i = 0; i < nb_args; i++) {
757 g_free(args[i]);
763 * Parse the command line to get valid args.
764 * @cmdline: command line to be parsed.
765 * @pnb_args: location to store the number of args, must NOT be NULL.
766 * @args: location to store the args, which should be freed by caller, must
767 * NOT be NULL.
769 * Returns 0 on success, negative on failure.
771 * NOTE: this parser is an approximate form of the real command parser. Number
772 * of args have a limit of MAX_ARGS. If cmdline contains more, it will
773 * return with failure.
775 static int parse_cmdline(const char *cmdline,
776 int *pnb_args, char **args)
778 const char *p;
779 int nb_args, ret;
780 char buf[1024];
782 p = cmdline;
783 nb_args = 0;
784 for (;;) {
785 while (qemu_isspace(*p)) {
786 p++;
788 if (*p == '\0') {
789 break;
791 if (nb_args >= MAX_ARGS) {
792 goto fail;
794 ret = get_str(buf, sizeof(buf), &p);
795 if (ret < 0) {
796 goto fail;
798 args[nb_args] = g_strdup(buf);
799 nb_args++;
801 *pnb_args = nb_args;
802 return 0;
804 fail:
805 free_cmdline_args(args, nb_args);
806 return -1;
809 static void help_cmd_dump_one(Monitor *mon,
810 const mon_cmd_t *cmd,
811 char **prefix_args,
812 int prefix_args_nb)
814 int i;
816 for (i = 0; i < prefix_args_nb; i++) {
817 monitor_printf(mon, "%s ", prefix_args[i]);
819 monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
822 /* @args[@arg_index] is the valid command need to find in @cmds */
823 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
824 char **args, int nb_args, int arg_index)
826 const mon_cmd_t *cmd;
828 /* No valid arg need to compare with, dump all in *cmds */
829 if (arg_index >= nb_args) {
830 for (cmd = cmds; cmd->name != NULL; cmd++) {
831 help_cmd_dump_one(mon, cmd, args, arg_index);
833 return;
836 /* Find one entry to dump */
837 for (cmd = cmds; cmd->name != NULL; cmd++) {
838 if (compare_cmd(args[arg_index], cmd->name)) {
839 if (cmd->sub_table) {
840 /* continue with next arg */
841 help_cmd_dump(mon, cmd->sub_table,
842 args, nb_args, arg_index + 1);
843 } else {
844 help_cmd_dump_one(mon, cmd, args, arg_index);
846 break;
851 static void help_cmd(Monitor *mon, const char *name)
853 char *args[MAX_ARGS];
854 int nb_args = 0;
856 /* 1. parse user input */
857 if (name) {
858 /* special case for log, directly dump and return */
859 if (!strcmp(name, "log")) {
860 const QEMULogItem *item;
861 monitor_printf(mon, "Log items (comma separated):\n");
862 monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
863 for (item = qemu_log_items; item->mask != 0; item++) {
864 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
866 return;
869 if (parse_cmdline(name, &nb_args, args) < 0) {
870 return;
874 /* 2. dump the contents according to parsed args */
875 help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
877 free_cmdline_args(args, nb_args);
880 static void do_help_cmd(Monitor *mon, const QDict *qdict)
882 help_cmd(mon, qdict_get_try_str(qdict, "name"));
885 static void hmp_trace_event(Monitor *mon, const QDict *qdict)
887 const char *tp_name = qdict_get_str(qdict, "name");
888 bool new_state = qdict_get_bool(qdict, "option");
889 Error *local_err = NULL;
891 qmp_trace_event_set_state(tp_name, new_state, true, true, &local_err);
892 if (local_err) {
893 error_report_err(local_err);
897 #ifdef CONFIG_TRACE_SIMPLE
898 static void hmp_trace_file(Monitor *mon, const QDict *qdict)
900 const char *op = qdict_get_try_str(qdict, "op");
901 const char *arg = qdict_get_try_str(qdict, "arg");
903 if (!op) {
904 st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
905 } else if (!strcmp(op, "on")) {
906 st_set_trace_file_enabled(true);
907 } else if (!strcmp(op, "off")) {
908 st_set_trace_file_enabled(false);
909 } else if (!strcmp(op, "flush")) {
910 st_flush_trace_buffer();
911 } else if (!strcmp(op, "set")) {
912 if (arg) {
913 st_set_trace_file(arg);
915 } else {
916 monitor_printf(mon, "unexpected argument \"%s\"\n", op);
917 help_cmd(mon, "trace-file");
920 #endif
922 static void hmp_info_help(Monitor *mon, const QDict *qdict)
924 help_cmd(mon, "info");
927 CommandInfoList *qmp_query_commands(Error **errp)
929 CommandInfoList *info, *cmd_list = NULL;
930 const mon_cmd_t *cmd;
932 for (cmd = qmp_cmds; cmd->name != NULL; cmd++) {
933 info = g_malloc0(sizeof(*info));
934 info->value = g_malloc0(sizeof(*info->value));
935 info->value->name = g_strdup(cmd->name);
937 info->next = cmd_list;
938 cmd_list = info;
941 return cmd_list;
944 EventInfoList *qmp_query_events(Error **errp)
946 EventInfoList *info, *ev_list = NULL;
947 QAPIEvent e;
949 for (e = 0 ; e < QAPI_EVENT_MAX ; e++) {
950 const char *event_name = QAPIEvent_lookup[e];
951 assert(event_name != NULL);
952 info = g_malloc0(sizeof(*info));
953 info->value = g_malloc0(sizeof(*info->value));
954 info->value->name = g_strdup(event_name);
956 info->next = ev_list;
957 ev_list = info;
960 return ev_list;
964 * Minor hack: generated marshalling suppressed for this command
965 * ('gen': false in the schema) so we can parse the JSON string
966 * directly into QObject instead of first parsing it with
967 * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
968 * to QObject with generated output marshallers, every time. Instead,
969 * we do it in test-qmp-input-visitor.c, just to make sure
970 * qapi-introspect.py's output actually conforms to the schema.
972 static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
973 Error **errp)
975 *ret_data = qobject_from_json(qmp_schema_json);
978 /* set the current CPU defined by the user */
979 int monitor_set_cpu(int cpu_index)
981 CPUState *cpu;
983 cpu = qemu_get_cpu(cpu_index);
984 if (cpu == NULL) {
985 return -1;
987 cur_mon->mon_cpu = cpu;
988 return 0;
991 CPUState *mon_get_cpu(void)
993 if (!cur_mon->mon_cpu) {
994 monitor_set_cpu(0);
996 cpu_synchronize_state(cur_mon->mon_cpu);
997 return cur_mon->mon_cpu;
1000 CPUArchState *mon_get_cpu_env(void)
1002 return mon_get_cpu()->env_ptr;
1005 int monitor_get_cpu_index(void)
1007 return mon_get_cpu()->cpu_index;
1010 static void hmp_info_registers(Monitor *mon, const QDict *qdict)
1012 cpu_dump_state(mon_get_cpu(), (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
1015 static void hmp_info_jit(Monitor *mon, const QDict *qdict)
1017 dump_exec_info((FILE *)mon, monitor_fprintf);
1018 dump_drift_info((FILE *)mon, monitor_fprintf);
1021 static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
1023 dump_opcount_info((FILE *)mon, monitor_fprintf);
1026 static void hmp_info_history(Monitor *mon, const QDict *qdict)
1028 int i;
1029 const char *str;
1031 if (!mon->rs)
1032 return;
1033 i = 0;
1034 for(;;) {
1035 str = readline_get_history(mon->rs, i);
1036 if (!str)
1037 break;
1038 monitor_printf(mon, "%d: '%s'\n", i, str);
1039 i++;
1043 static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
1045 cpu_dump_statistics(mon_get_cpu(), (FILE *)mon, &monitor_fprintf, 0);
1048 static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
1050 TraceEventInfoList *events = qmp_trace_event_get_state("*", NULL);
1051 TraceEventInfoList *elem;
1053 for (elem = events; elem != NULL; elem = elem->next) {
1054 monitor_printf(mon, "%s : state %u\n",
1055 elem->value->name,
1056 elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
1058 qapi_free_TraceEventInfoList(events);
1061 void qmp_client_migrate_info(const char *protocol, const char *hostname,
1062 bool has_port, int64_t port,
1063 bool has_tls_port, int64_t tls_port,
1064 bool has_cert_subject, const char *cert_subject,
1065 Error **errp)
1067 if (strcmp(protocol, "spice") == 0) {
1068 if (!qemu_using_spice(errp)) {
1069 return;
1072 if (!has_port && !has_tls_port) {
1073 error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
1074 return;
1077 if (qemu_spice_migrate_info(hostname,
1078 has_port ? port : -1,
1079 has_tls_port ? tls_port : -1,
1080 cert_subject)) {
1081 error_setg(errp, QERR_UNDEFINED_ERROR);
1082 return;
1084 return;
1087 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
1090 static void hmp_logfile(Monitor *mon, const QDict *qdict)
1092 qemu_set_log_filename(qdict_get_str(qdict, "filename"));
1095 static void hmp_log(Monitor *mon, const QDict *qdict)
1097 int mask;
1098 const char *items = qdict_get_str(qdict, "items");
1100 if (!strcmp(items, "none")) {
1101 mask = 0;
1102 } else {
1103 mask = qemu_str_to_log_mask(items);
1104 if (!mask) {
1105 help_cmd(mon, "log");
1106 return;
1109 qemu_set_log(mask);
1112 static void hmp_singlestep(Monitor *mon, const QDict *qdict)
1114 const char *option = qdict_get_try_str(qdict, "option");
1115 if (!option || !strcmp(option, "on")) {
1116 singlestep = 1;
1117 } else if (!strcmp(option, "off")) {
1118 singlestep = 0;
1119 } else {
1120 monitor_printf(mon, "unexpected option %s\n", option);
1124 static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
1126 const char *device = qdict_get_try_str(qdict, "device");
1127 if (!device)
1128 device = "tcp::" DEFAULT_GDBSTUB_PORT;
1129 if (gdbserver_start(device) < 0) {
1130 monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1131 device);
1132 } else if (strcmp(device, "none") == 0) {
1133 monitor_printf(mon, "Disabled gdbserver\n");
1134 } else {
1135 monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1136 device);
1140 static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
1142 const char *action = qdict_get_str(qdict, "action");
1143 if (select_watchdog_action(action) == -1) {
1144 monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1148 static void monitor_printc(Monitor *mon, int c)
1150 monitor_printf(mon, "'");
1151 switch(c) {
1152 case '\'':
1153 monitor_printf(mon, "\\'");
1154 break;
1155 case '\\':
1156 monitor_printf(mon, "\\\\");
1157 break;
1158 case '\n':
1159 monitor_printf(mon, "\\n");
1160 break;
1161 case '\r':
1162 monitor_printf(mon, "\\r");
1163 break;
1164 default:
1165 if (c >= 32 && c <= 126) {
1166 monitor_printf(mon, "%c", c);
1167 } else {
1168 monitor_printf(mon, "\\x%02x", c);
1170 break;
1172 monitor_printf(mon, "'");
1175 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1176 hwaddr addr, int is_physical)
1178 int l, line_size, i, max_digits, len;
1179 uint8_t buf[16];
1180 uint64_t v;
1182 if (format == 'i') {
1183 int flags = 0;
1184 #ifdef TARGET_I386
1185 CPUArchState *env = mon_get_cpu_env();
1186 if (wsize == 2) {
1187 flags = 1;
1188 } else if (wsize == 4) {
1189 flags = 0;
1190 } else {
1191 /* as default we use the current CS size */
1192 flags = 0;
1193 if (env) {
1194 #ifdef TARGET_X86_64
1195 if ((env->efer & MSR_EFER_LMA) &&
1196 (env->segs[R_CS].flags & DESC_L_MASK))
1197 flags = 2;
1198 else
1199 #endif
1200 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1201 flags = 1;
1204 #endif
1205 #ifdef TARGET_PPC
1206 CPUArchState *env = mon_get_cpu_env();
1207 flags = msr_le << 16;
1208 flags |= env->bfd_mach;
1209 #endif
1210 monitor_disas(mon, mon_get_cpu(), addr, count, is_physical, flags);
1211 return;
1214 len = wsize * count;
1215 if (wsize == 1)
1216 line_size = 8;
1217 else
1218 line_size = 16;
1219 max_digits = 0;
1221 switch(format) {
1222 case 'o':
1223 max_digits = (wsize * 8 + 2) / 3;
1224 break;
1225 default:
1226 case 'x':
1227 max_digits = (wsize * 8) / 4;
1228 break;
1229 case 'u':
1230 case 'd':
1231 max_digits = (wsize * 8 * 10 + 32) / 33;
1232 break;
1233 case 'c':
1234 wsize = 1;
1235 break;
1238 while (len > 0) {
1239 if (is_physical)
1240 monitor_printf(mon, TARGET_FMT_plx ":", addr);
1241 else
1242 monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1243 l = len;
1244 if (l > line_size)
1245 l = line_size;
1246 if (is_physical) {
1247 cpu_physical_memory_read(addr, buf, l);
1248 } else {
1249 if (cpu_memory_rw_debug(mon_get_cpu(), addr, buf, l, 0) < 0) {
1250 monitor_printf(mon, " Cannot access memory\n");
1251 break;
1254 i = 0;
1255 while (i < l) {
1256 switch(wsize) {
1257 default:
1258 case 1:
1259 v = ldub_p(buf + i);
1260 break;
1261 case 2:
1262 v = lduw_p(buf + i);
1263 break;
1264 case 4:
1265 v = (uint32_t)ldl_p(buf + i);
1266 break;
1267 case 8:
1268 v = ldq_p(buf + i);
1269 break;
1271 monitor_printf(mon, " ");
1272 switch(format) {
1273 case 'o':
1274 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1275 break;
1276 case 'x':
1277 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1278 break;
1279 case 'u':
1280 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1281 break;
1282 case 'd':
1283 monitor_printf(mon, "%*" PRId64, max_digits, v);
1284 break;
1285 case 'c':
1286 monitor_printc(mon, v);
1287 break;
1289 i += wsize;
1291 monitor_printf(mon, "\n");
1292 addr += l;
1293 len -= l;
1297 static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
1299 int count = qdict_get_int(qdict, "count");
1300 int format = qdict_get_int(qdict, "format");
1301 int size = qdict_get_int(qdict, "size");
1302 target_long addr = qdict_get_int(qdict, "addr");
1304 memory_dump(mon, count, format, size, addr, 0);
1307 static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
1309 int count = qdict_get_int(qdict, "count");
1310 int format = qdict_get_int(qdict, "format");
1311 int size = qdict_get_int(qdict, "size");
1312 hwaddr addr = qdict_get_int(qdict, "addr");
1314 memory_dump(mon, count, format, size, addr, 1);
1317 static void do_print(Monitor *mon, const QDict *qdict)
1319 int format = qdict_get_int(qdict, "format");
1320 hwaddr val = qdict_get_int(qdict, "val");
1322 switch(format) {
1323 case 'o':
1324 monitor_printf(mon, "%#" HWADDR_PRIo, val);
1325 break;
1326 case 'x':
1327 monitor_printf(mon, "%#" HWADDR_PRIx, val);
1328 break;
1329 case 'u':
1330 monitor_printf(mon, "%" HWADDR_PRIu, val);
1331 break;
1332 default:
1333 case 'd':
1334 monitor_printf(mon, "%" HWADDR_PRId, val);
1335 break;
1336 case 'c':
1337 monitor_printc(mon, val);
1338 break;
1340 monitor_printf(mon, "\n");
1343 static void hmp_sum(Monitor *mon, const QDict *qdict)
1345 uint32_t addr;
1346 uint16_t sum;
1347 uint32_t start = qdict_get_int(qdict, "start");
1348 uint32_t size = qdict_get_int(qdict, "size");
1350 sum = 0;
1351 for(addr = start; addr < (start + size); addr++) {
1352 uint8_t val = address_space_ldub(&address_space_memory, addr,
1353 MEMTXATTRS_UNSPECIFIED, NULL);
1354 /* BSD sum algorithm ('sum' Unix command) */
1355 sum = (sum >> 1) | (sum << 15);
1356 sum += val;
1358 monitor_printf(mon, "%05d\n", sum);
1361 static int mouse_button_state;
1363 static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
1365 int dx, dy, dz, button;
1366 const char *dx_str = qdict_get_str(qdict, "dx_str");
1367 const char *dy_str = qdict_get_str(qdict, "dy_str");
1368 const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1370 dx = strtol(dx_str, NULL, 0);
1371 dy = strtol(dy_str, NULL, 0);
1372 qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
1373 qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
1375 if (dz_str) {
1376 dz = strtol(dz_str, NULL, 0);
1377 if (dz != 0) {
1378 button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
1379 qemu_input_queue_btn(NULL, button, true);
1380 qemu_input_event_sync();
1381 qemu_input_queue_btn(NULL, button, false);
1384 qemu_input_event_sync();
1387 static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
1389 static uint32_t bmap[INPUT_BUTTON_MAX] = {
1390 [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
1391 [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
1392 [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
1394 int button_state = qdict_get_int(qdict, "button_state");
1396 if (mouse_button_state == button_state) {
1397 return;
1399 qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
1400 qemu_input_event_sync();
1401 mouse_button_state = button_state;
1404 static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
1406 int size = qdict_get_int(qdict, "size");
1407 int addr = qdict_get_int(qdict, "addr");
1408 int has_index = qdict_haskey(qdict, "index");
1409 uint32_t val;
1410 int suffix;
1412 if (has_index) {
1413 int index = qdict_get_int(qdict, "index");
1414 cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1415 addr++;
1417 addr &= 0xffff;
1419 switch(size) {
1420 default:
1421 case 1:
1422 val = cpu_inb(addr);
1423 suffix = 'b';
1424 break;
1425 case 2:
1426 val = cpu_inw(addr);
1427 suffix = 'w';
1428 break;
1429 case 4:
1430 val = cpu_inl(addr);
1431 suffix = 'l';
1432 break;
1434 monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1435 suffix, addr, size * 2, val);
1438 static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
1440 int size = qdict_get_int(qdict, "size");
1441 int addr = qdict_get_int(qdict, "addr");
1442 int val = qdict_get_int(qdict, "val");
1444 addr &= IOPORTS_MASK;
1446 switch (size) {
1447 default:
1448 case 1:
1449 cpu_outb(addr, val);
1450 break;
1451 case 2:
1452 cpu_outw(addr, val);
1453 break;
1454 case 4:
1455 cpu_outl(addr, val);
1456 break;
1460 static void hmp_boot_set(Monitor *mon, const QDict *qdict)
1462 Error *local_err = NULL;
1463 const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1465 qemu_boot_set(bootdevice, &local_err);
1466 if (local_err) {
1467 monitor_printf(mon, "%s\n", error_get_pretty(local_err));
1468 error_free(local_err);
1469 } else {
1470 monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1474 static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
1476 mtree_info((fprintf_function)monitor_printf, mon);
1479 static void hmp_info_numa(Monitor *mon, const QDict *qdict)
1481 int i;
1482 CPUState *cpu;
1483 uint64_t *node_mem;
1485 node_mem = g_new0(uint64_t, nb_numa_nodes);
1486 query_numa_node_mem(node_mem);
1487 monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1488 for (i = 0; i < nb_numa_nodes; i++) {
1489 monitor_printf(mon, "node %d cpus:", i);
1490 CPU_FOREACH(cpu) {
1491 if (cpu->numa_node == i) {
1492 monitor_printf(mon, " %d", cpu->cpu_index);
1495 monitor_printf(mon, "\n");
1496 monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
1497 node_mem[i] >> 20);
1499 g_free(node_mem);
1502 #ifdef CONFIG_PROFILER
1504 int64_t tcg_time;
1505 int64_t dev_time;
1507 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1509 monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
1510 dev_time, dev_time / (double)get_ticks_per_sec());
1511 monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
1512 tcg_time, tcg_time / (double)get_ticks_per_sec());
1513 tcg_time = 0;
1514 dev_time = 0;
1516 #else
1517 static void hmp_info_profile(Monitor *mon, const QDict *qdict)
1519 monitor_printf(mon, "Internal profiler not compiled\n");
1521 #endif
1523 /* Capture support */
1524 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
1526 static void hmp_info_capture(Monitor *mon, const QDict *qdict)
1528 int i;
1529 CaptureState *s;
1531 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1532 monitor_printf(mon, "[%d]: ", i);
1533 s->ops.info (s->opaque);
1537 static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
1539 int i;
1540 int n = qdict_get_int(qdict, "n");
1541 CaptureState *s;
1543 for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
1544 if (i == n) {
1545 s->ops.destroy (s->opaque);
1546 QLIST_REMOVE (s, entries);
1547 g_free (s);
1548 return;
1553 static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
1555 const char *path = qdict_get_str(qdict, "path");
1556 int has_freq = qdict_haskey(qdict, "freq");
1557 int freq = qdict_get_try_int(qdict, "freq", -1);
1558 int has_bits = qdict_haskey(qdict, "bits");
1559 int bits = qdict_get_try_int(qdict, "bits", -1);
1560 int has_channels = qdict_haskey(qdict, "nchannels");
1561 int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
1562 CaptureState *s;
1564 s = g_malloc0 (sizeof (*s));
1566 freq = has_freq ? freq : 44100;
1567 bits = has_bits ? bits : 16;
1568 nchannels = has_channels ? nchannels : 2;
1570 if (wav_start_capture (s, path, freq, bits, nchannels)) {
1571 monitor_printf(mon, "Failed to add wave capture\n");
1572 g_free (s);
1573 return;
1575 QLIST_INSERT_HEAD (&capture_head, s, entries);
1578 static qemu_acl *find_acl(Monitor *mon, const char *name)
1580 qemu_acl *acl = qemu_acl_find(name);
1582 if (!acl) {
1583 monitor_printf(mon, "acl: unknown list '%s'\n", name);
1585 return acl;
1588 static void hmp_acl_show(Monitor *mon, const QDict *qdict)
1590 const char *aclname = qdict_get_str(qdict, "aclname");
1591 qemu_acl *acl = find_acl(mon, aclname);
1592 qemu_acl_entry *entry;
1593 int i = 0;
1595 if (acl) {
1596 monitor_printf(mon, "policy: %s\n",
1597 acl->defaultDeny ? "deny" : "allow");
1598 QTAILQ_FOREACH(entry, &acl->entries, next) {
1599 i++;
1600 monitor_printf(mon, "%d: %s %s\n", i,
1601 entry->deny ? "deny" : "allow", entry->match);
1606 static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
1608 const char *aclname = qdict_get_str(qdict, "aclname");
1609 qemu_acl *acl = find_acl(mon, aclname);
1611 if (acl) {
1612 qemu_acl_reset(acl);
1613 monitor_printf(mon, "acl: removed all rules\n");
1617 static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
1619 const char *aclname = qdict_get_str(qdict, "aclname");
1620 const char *policy = qdict_get_str(qdict, "policy");
1621 qemu_acl *acl = find_acl(mon, aclname);
1623 if (acl) {
1624 if (strcmp(policy, "allow") == 0) {
1625 acl->defaultDeny = 0;
1626 monitor_printf(mon, "acl: policy set to 'allow'\n");
1627 } else if (strcmp(policy, "deny") == 0) {
1628 acl->defaultDeny = 1;
1629 monitor_printf(mon, "acl: policy set to 'deny'\n");
1630 } else {
1631 monitor_printf(mon, "acl: unknown policy '%s', "
1632 "expected 'deny' or 'allow'\n", policy);
1637 static void hmp_acl_add(Monitor *mon, const QDict *qdict)
1639 const char *aclname = qdict_get_str(qdict, "aclname");
1640 const char *match = qdict_get_str(qdict, "match");
1641 const char *policy = qdict_get_str(qdict, "policy");
1642 int has_index = qdict_haskey(qdict, "index");
1643 int index = qdict_get_try_int(qdict, "index", -1);
1644 qemu_acl *acl = find_acl(mon, aclname);
1645 int deny, ret;
1647 if (acl) {
1648 if (strcmp(policy, "allow") == 0) {
1649 deny = 0;
1650 } else if (strcmp(policy, "deny") == 0) {
1651 deny = 1;
1652 } else {
1653 monitor_printf(mon, "acl: unknown policy '%s', "
1654 "expected 'deny' or 'allow'\n", policy);
1655 return;
1657 if (has_index)
1658 ret = qemu_acl_insert(acl, deny, match, index);
1659 else
1660 ret = qemu_acl_append(acl, deny, match);
1661 if (ret < 0)
1662 monitor_printf(mon, "acl: unable to add acl entry\n");
1663 else
1664 monitor_printf(mon, "acl: added rule at position %d\n", ret);
1668 static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
1670 const char *aclname = qdict_get_str(qdict, "aclname");
1671 const char *match = qdict_get_str(qdict, "match");
1672 qemu_acl *acl = find_acl(mon, aclname);
1673 int ret;
1675 if (acl) {
1676 ret = qemu_acl_remove(acl, match);
1677 if (ret < 0)
1678 monitor_printf(mon, "acl: no matching acl entry\n");
1679 else
1680 monitor_printf(mon, "acl: removed rule at position %d\n", ret);
1684 void qmp_getfd(const char *fdname, Error **errp)
1686 mon_fd_t *monfd;
1687 int fd;
1689 fd = qemu_chr_fe_get_msgfd(cur_mon->chr);
1690 if (fd == -1) {
1691 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1692 return;
1695 if (qemu_isdigit(fdname[0])) {
1696 close(fd);
1697 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
1698 "a name not starting with a digit");
1699 return;
1702 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1703 if (strcmp(monfd->name, fdname) != 0) {
1704 continue;
1707 close(monfd->fd);
1708 monfd->fd = fd;
1709 return;
1712 monfd = g_malloc0(sizeof(mon_fd_t));
1713 monfd->name = g_strdup(fdname);
1714 monfd->fd = fd;
1716 QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
1719 void qmp_closefd(const char *fdname, Error **errp)
1721 mon_fd_t *monfd;
1723 QLIST_FOREACH(monfd, &cur_mon->fds, next) {
1724 if (strcmp(monfd->name, fdname) != 0) {
1725 continue;
1728 QLIST_REMOVE(monfd, next);
1729 close(monfd->fd);
1730 g_free(monfd->name);
1731 g_free(monfd);
1732 return;
1735 error_setg(errp, QERR_FD_NOT_FOUND, fdname);
1738 static void hmp_loadvm(Monitor *mon, const QDict *qdict)
1740 int saved_vm_running = runstate_is_running();
1741 const char *name = qdict_get_str(qdict, "name");
1743 vm_stop(RUN_STATE_RESTORE_VM);
1745 if (load_vmstate(name) == 0 && saved_vm_running) {
1746 vm_start();
1750 int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
1752 mon_fd_t *monfd;
1754 QLIST_FOREACH(monfd, &mon->fds, next) {
1755 int fd;
1757 if (strcmp(monfd->name, fdname) != 0) {
1758 continue;
1761 fd = monfd->fd;
1763 /* caller takes ownership of fd */
1764 QLIST_REMOVE(monfd, next);
1765 g_free(monfd->name);
1766 g_free(monfd);
1768 return fd;
1771 error_setg(errp, "File descriptor named '%s' has not been found", fdname);
1772 return -1;
1775 static void monitor_fdset_cleanup(MonFdset *mon_fdset)
1777 MonFdsetFd *mon_fdset_fd;
1778 MonFdsetFd *mon_fdset_fd_next;
1780 QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
1781 if ((mon_fdset_fd->removed ||
1782 (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
1783 runstate_is_running()) {
1784 close(mon_fdset_fd->fd);
1785 g_free(mon_fdset_fd->opaque);
1786 QLIST_REMOVE(mon_fdset_fd, next);
1787 g_free(mon_fdset_fd);
1791 if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
1792 QLIST_REMOVE(mon_fdset, next);
1793 g_free(mon_fdset);
1797 static void monitor_fdsets_cleanup(void)
1799 MonFdset *mon_fdset;
1800 MonFdset *mon_fdset_next;
1802 QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
1803 monitor_fdset_cleanup(mon_fdset);
1807 AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
1808 const char *opaque, Error **errp)
1810 int fd;
1811 Monitor *mon = cur_mon;
1812 AddfdInfo *fdinfo;
1814 fd = qemu_chr_fe_get_msgfd(mon->chr);
1815 if (fd == -1) {
1816 error_setg(errp, QERR_FD_NOT_SUPPLIED);
1817 goto error;
1820 fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
1821 has_opaque, opaque, errp);
1822 if (fdinfo) {
1823 return fdinfo;
1826 error:
1827 if (fd != -1) {
1828 close(fd);
1830 return NULL;
1833 void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
1835 MonFdset *mon_fdset;
1836 MonFdsetFd *mon_fdset_fd;
1837 char fd_str[60];
1839 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1840 if (mon_fdset->id != fdset_id) {
1841 continue;
1843 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1844 if (has_fd) {
1845 if (mon_fdset_fd->fd != fd) {
1846 continue;
1848 mon_fdset_fd->removed = true;
1849 break;
1850 } else {
1851 mon_fdset_fd->removed = true;
1854 if (has_fd && !mon_fdset_fd) {
1855 goto error;
1857 monitor_fdset_cleanup(mon_fdset);
1858 return;
1861 error:
1862 if (has_fd) {
1863 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
1864 fdset_id, fd);
1865 } else {
1866 snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
1868 error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
1871 FdsetInfoList *qmp_query_fdsets(Error **errp)
1873 MonFdset *mon_fdset;
1874 MonFdsetFd *mon_fdset_fd;
1875 FdsetInfoList *fdset_list = NULL;
1877 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1878 FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
1879 FdsetFdInfoList *fdsetfd_list = NULL;
1881 fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
1882 fdset_info->value->fdset_id = mon_fdset->id;
1884 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
1885 FdsetFdInfoList *fdsetfd_info;
1887 fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
1888 fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
1889 fdsetfd_info->value->fd = mon_fdset_fd->fd;
1890 if (mon_fdset_fd->opaque) {
1891 fdsetfd_info->value->has_opaque = true;
1892 fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
1893 } else {
1894 fdsetfd_info->value->has_opaque = false;
1897 fdsetfd_info->next = fdsetfd_list;
1898 fdsetfd_list = fdsetfd_info;
1901 fdset_info->value->fds = fdsetfd_list;
1903 fdset_info->next = fdset_list;
1904 fdset_list = fdset_info;
1907 return fdset_list;
1910 AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
1911 bool has_opaque, const char *opaque,
1912 Error **errp)
1914 MonFdset *mon_fdset = NULL;
1915 MonFdsetFd *mon_fdset_fd;
1916 AddfdInfo *fdinfo;
1918 if (has_fdset_id) {
1919 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1920 /* Break if match found or match impossible due to ordering by ID */
1921 if (fdset_id <= mon_fdset->id) {
1922 if (fdset_id < mon_fdset->id) {
1923 mon_fdset = NULL;
1925 break;
1930 if (mon_fdset == NULL) {
1931 int64_t fdset_id_prev = -1;
1932 MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
1934 if (has_fdset_id) {
1935 if (fdset_id < 0) {
1936 error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
1937 "a non-negative value");
1938 return NULL;
1940 /* Use specified fdset ID */
1941 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1942 mon_fdset_cur = mon_fdset;
1943 if (fdset_id < mon_fdset_cur->id) {
1944 break;
1947 } else {
1948 /* Use first available fdset ID */
1949 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1950 mon_fdset_cur = mon_fdset;
1951 if (fdset_id_prev == mon_fdset_cur->id - 1) {
1952 fdset_id_prev = mon_fdset_cur->id;
1953 continue;
1955 break;
1959 mon_fdset = g_malloc0(sizeof(*mon_fdset));
1960 if (has_fdset_id) {
1961 mon_fdset->id = fdset_id;
1962 } else {
1963 mon_fdset->id = fdset_id_prev + 1;
1966 /* The fdset list is ordered by fdset ID */
1967 if (!mon_fdset_cur) {
1968 QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
1969 } else if (mon_fdset->id < mon_fdset_cur->id) {
1970 QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
1971 } else {
1972 QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
1976 mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
1977 mon_fdset_fd->fd = fd;
1978 mon_fdset_fd->removed = false;
1979 if (has_opaque) {
1980 mon_fdset_fd->opaque = g_strdup(opaque);
1982 QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
1984 fdinfo = g_malloc0(sizeof(*fdinfo));
1985 fdinfo->fdset_id = mon_fdset->id;
1986 fdinfo->fd = mon_fdset_fd->fd;
1988 return fdinfo;
1991 int monitor_fdset_get_fd(int64_t fdset_id, int flags)
1993 #ifndef _WIN32
1994 MonFdset *mon_fdset;
1995 MonFdsetFd *mon_fdset_fd;
1996 int mon_fd_flags;
1998 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
1999 if (mon_fdset->id != fdset_id) {
2000 continue;
2002 QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
2003 mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
2004 if (mon_fd_flags == -1) {
2005 return -1;
2008 if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
2009 return mon_fdset_fd->fd;
2012 errno = EACCES;
2013 return -1;
2015 #endif
2017 errno = ENOENT;
2018 return -1;
2021 int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
2023 MonFdset *mon_fdset;
2024 MonFdsetFd *mon_fdset_fd_dup;
2026 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2027 if (mon_fdset->id != fdset_id) {
2028 continue;
2030 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2031 if (mon_fdset_fd_dup->fd == dup_fd) {
2032 return -1;
2035 mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
2036 mon_fdset_fd_dup->fd = dup_fd;
2037 QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
2038 return 0;
2040 return -1;
2043 static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
2045 MonFdset *mon_fdset;
2046 MonFdsetFd *mon_fdset_fd_dup;
2048 QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
2049 QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
2050 if (mon_fdset_fd_dup->fd == dup_fd) {
2051 if (remove) {
2052 QLIST_REMOVE(mon_fdset_fd_dup, next);
2053 if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
2054 monitor_fdset_cleanup(mon_fdset);
2056 return -1;
2057 } else {
2058 return mon_fdset->id;
2063 return -1;
2066 int monitor_fdset_dup_fd_find(int dup_fd)
2068 return monitor_fdset_dup_fd_find_remove(dup_fd, false);
2071 void monitor_fdset_dup_fd_remove(int dup_fd)
2073 monitor_fdset_dup_fd_find_remove(dup_fd, true);
2076 int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
2078 int fd;
2079 Error *local_err = NULL;
2081 if (!qemu_isdigit(fdname[0]) && mon) {
2082 fd = monitor_get_fd(mon, fdname, &local_err);
2083 } else {
2084 fd = qemu_parse_fd(fdname);
2085 if (fd == -1) {
2086 error_setg(&local_err, "Invalid file descriptor number '%s'",
2087 fdname);
2090 if (local_err) {
2091 error_propagate(errp, local_err);
2092 assert(fd == -1);
2093 } else {
2094 assert(fd != -1);
2097 return fd;
2100 /* Please update hmp-commands.hx when adding or changing commands */
2101 static mon_cmd_t info_cmds[] = {
2102 #include "hmp-commands-info.h"
2103 { NULL, NULL, },
2106 /* mon_cmds and info_cmds would be sorted at runtime */
2107 static mon_cmd_t mon_cmds[] = {
2108 #include "hmp-commands.h"
2109 { NULL, NULL, },
2112 static const mon_cmd_t qmp_cmds[] = {
2113 #include "qmp-commands-old.h"
2114 { /* NULL */ },
2117 /*******************************************************************/
2119 static const char *pch;
2120 static sigjmp_buf expr_env;
2123 static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
2124 expr_error(Monitor *mon, const char *fmt, ...)
2126 va_list ap;
2127 va_start(ap, fmt);
2128 monitor_vprintf(mon, fmt, ap);
2129 monitor_printf(mon, "\n");
2130 va_end(ap);
2131 siglongjmp(expr_env, 1);
2134 /* return 0 if OK, -1 if not found */
2135 static int get_monitor_def(target_long *pval, const char *name)
2137 const MonitorDef *md = target_monitor_defs();
2138 void *ptr;
2140 if (md == NULL) {
2141 return -1;
2144 for(; md->name != NULL; md++) {
2145 if (compare_cmd(name, md->name)) {
2146 if (md->get_value) {
2147 *pval = md->get_value(md, md->offset);
2148 } else {
2149 CPUArchState *env = mon_get_cpu_env();
2150 ptr = (uint8_t *)env + md->offset;
2151 switch(md->type) {
2152 case MD_I32:
2153 *pval = *(int32_t *)ptr;
2154 break;
2155 case MD_TLONG:
2156 *pval = *(target_long *)ptr;
2157 break;
2158 default:
2159 *pval = 0;
2160 break;
2163 return 0;
2166 return -1;
2169 static void next(void)
2171 if (*pch != '\0') {
2172 pch++;
2173 while (qemu_isspace(*pch))
2174 pch++;
2178 static int64_t expr_sum(Monitor *mon);
2180 static int64_t expr_unary(Monitor *mon)
2182 int64_t n;
2183 char *p;
2184 int ret;
2186 switch(*pch) {
2187 case '+':
2188 next();
2189 n = expr_unary(mon);
2190 break;
2191 case '-':
2192 next();
2193 n = -expr_unary(mon);
2194 break;
2195 case '~':
2196 next();
2197 n = ~expr_unary(mon);
2198 break;
2199 case '(':
2200 next();
2201 n = expr_sum(mon);
2202 if (*pch != ')') {
2203 expr_error(mon, "')' expected");
2205 next();
2206 break;
2207 case '\'':
2208 pch++;
2209 if (*pch == '\0')
2210 expr_error(mon, "character constant expected");
2211 n = *pch;
2212 pch++;
2213 if (*pch != '\'')
2214 expr_error(mon, "missing terminating \' character");
2215 next();
2216 break;
2217 case '$':
2219 char buf[128], *q;
2220 target_long reg=0;
2222 pch++;
2223 q = buf;
2224 while ((*pch >= 'a' && *pch <= 'z') ||
2225 (*pch >= 'A' && *pch <= 'Z') ||
2226 (*pch >= '0' && *pch <= '9') ||
2227 *pch == '_' || *pch == '.') {
2228 if ((q - buf) < sizeof(buf) - 1)
2229 *q++ = *pch;
2230 pch++;
2232 while (qemu_isspace(*pch))
2233 pch++;
2234 *q = 0;
2235 ret = get_monitor_def(&reg, buf);
2236 if (ret < 0)
2237 expr_error(mon, "unknown register");
2238 n = reg;
2240 break;
2241 case '\0':
2242 expr_error(mon, "unexpected end of expression");
2243 n = 0;
2244 break;
2245 default:
2246 errno = 0;
2247 n = strtoull(pch, &p, 0);
2248 if (errno == ERANGE) {
2249 expr_error(mon, "number too large");
2251 if (pch == p) {
2252 expr_error(mon, "invalid char '%c' in expression", *p);
2254 pch = p;
2255 while (qemu_isspace(*pch))
2256 pch++;
2257 break;
2259 return n;
2263 static int64_t expr_prod(Monitor *mon)
2265 int64_t val, val2;
2266 int op;
2268 val = expr_unary(mon);
2269 for(;;) {
2270 op = *pch;
2271 if (op != '*' && op != '/' && op != '%')
2272 break;
2273 next();
2274 val2 = expr_unary(mon);
2275 switch(op) {
2276 default:
2277 case '*':
2278 val *= val2;
2279 break;
2280 case '/':
2281 case '%':
2282 if (val2 == 0)
2283 expr_error(mon, "division by zero");
2284 if (op == '/')
2285 val /= val2;
2286 else
2287 val %= val2;
2288 break;
2291 return val;
2294 static int64_t expr_logic(Monitor *mon)
2296 int64_t val, val2;
2297 int op;
2299 val = expr_prod(mon);
2300 for(;;) {
2301 op = *pch;
2302 if (op != '&' && op != '|' && op != '^')
2303 break;
2304 next();
2305 val2 = expr_prod(mon);
2306 switch(op) {
2307 default:
2308 case '&':
2309 val &= val2;
2310 break;
2311 case '|':
2312 val |= val2;
2313 break;
2314 case '^':
2315 val ^= val2;
2316 break;
2319 return val;
2322 static int64_t expr_sum(Monitor *mon)
2324 int64_t val, val2;
2325 int op;
2327 val = expr_logic(mon);
2328 for(;;) {
2329 op = *pch;
2330 if (op != '+' && op != '-')
2331 break;
2332 next();
2333 val2 = expr_logic(mon);
2334 if (op == '+')
2335 val += val2;
2336 else
2337 val -= val2;
2339 return val;
2342 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
2344 pch = *pp;
2345 if (sigsetjmp(expr_env, 0)) {
2346 *pp = pch;
2347 return -1;
2349 while (qemu_isspace(*pch))
2350 pch++;
2351 *pval = expr_sum(mon);
2352 *pp = pch;
2353 return 0;
2356 static int get_double(Monitor *mon, double *pval, const char **pp)
2358 const char *p = *pp;
2359 char *tailp;
2360 double d;
2362 d = strtod(p, &tailp);
2363 if (tailp == p) {
2364 monitor_printf(mon, "Number expected\n");
2365 return -1;
2367 if (d != d || d - d != 0) {
2368 /* NaN or infinity */
2369 monitor_printf(mon, "Bad number\n");
2370 return -1;
2372 *pval = d;
2373 *pp = tailp;
2374 return 0;
2378 * Store the command-name in cmdname, and return a pointer to
2379 * the remaining of the command string.
2381 static const char *get_command_name(const char *cmdline,
2382 char *cmdname, size_t nlen)
2384 size_t len;
2385 const char *p, *pstart;
2387 p = cmdline;
2388 while (qemu_isspace(*p))
2389 p++;
2390 if (*p == '\0')
2391 return NULL;
2392 pstart = p;
2393 while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
2394 p++;
2395 len = p - pstart;
2396 if (len > nlen - 1)
2397 len = nlen - 1;
2398 memcpy(cmdname, pstart, len);
2399 cmdname[len] = '\0';
2400 return p;
2404 * Read key of 'type' into 'key' and return the current
2405 * 'type' pointer.
2407 static char *key_get_info(const char *type, char **key)
2409 size_t len;
2410 char *p, *str;
2412 if (*type == ',')
2413 type++;
2415 p = strchr(type, ':');
2416 if (!p) {
2417 *key = NULL;
2418 return NULL;
2420 len = p - type;
2422 str = g_malloc(len + 1);
2423 memcpy(str, type, len);
2424 str[len] = '\0';
2426 *key = str;
2427 return ++p;
2430 static int default_fmt_format = 'x';
2431 static int default_fmt_size = 4;
2433 static int is_valid_option(const char *c, const char *typestr)
2435 char option[3];
2437 option[0] = '-';
2438 option[1] = *c;
2439 option[2] = '\0';
2441 typestr = strstr(typestr, option);
2442 return (typestr != NULL);
2445 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
2446 const char *cmdname)
2448 const mon_cmd_t *cmd;
2450 for (cmd = disp_table; cmd->name != NULL; cmd++) {
2451 if (compare_cmd(cmdname, cmd->name)) {
2452 return cmd;
2456 return NULL;
2459 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
2461 return search_dispatch_table(qmp_cmds, cmdname);
2465 * Parse command name from @cmdp according to command table @table.
2466 * If blank, return NULL.
2467 * Else, if no valid command can be found, report to @mon, and return
2468 * NULL.
2469 * Else, change @cmdp to point right behind the name, and return its
2470 * command table entry.
2471 * Do not assume the return value points into @table! It doesn't when
2472 * the command is found in a sub-command table.
2474 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
2475 const char **cmdp,
2476 mon_cmd_t *table)
2478 const char *p;
2479 const mon_cmd_t *cmd;
2480 char cmdname[256];
2482 /* extract the command name */
2483 p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
2484 if (!p)
2485 return NULL;
2487 cmd = search_dispatch_table(table, cmdname);
2488 if (!cmd) {
2489 monitor_printf(mon, "unknown command: '%.*s'\n",
2490 (int)(p - *cmdp), *cmdp);
2491 return NULL;
2494 /* filter out following useless space */
2495 while (qemu_isspace(*p)) {
2496 p++;
2499 *cmdp = p;
2500 /* search sub command */
2501 if (cmd->sub_table != NULL && *p != '\0') {
2502 return monitor_parse_command(mon, cmdp, cmd->sub_table);
2505 return cmd;
2509 * Parse arguments for @cmd.
2510 * If it can't be parsed, report to @mon, and return NULL.
2511 * Else, insert command arguments into a QDict, and return it.
2512 * Note: On success, caller has to free the QDict structure.
2515 static QDict *monitor_parse_arguments(Monitor *mon,
2516 const char **endp,
2517 const mon_cmd_t *cmd)
2519 const char *typestr;
2520 char *key;
2521 int c;
2522 const char *p = *endp;
2523 char buf[1024];
2524 QDict *qdict = qdict_new();
2526 /* parse the parameters */
2527 typestr = cmd->args_type;
2528 for(;;) {
2529 typestr = key_get_info(typestr, &key);
2530 if (!typestr)
2531 break;
2532 c = *typestr;
2533 typestr++;
2534 switch(c) {
2535 case 'F':
2536 case 'B':
2537 case 's':
2539 int ret;
2541 while (qemu_isspace(*p))
2542 p++;
2543 if (*typestr == '?') {
2544 typestr++;
2545 if (*p == '\0') {
2546 /* no optional string: NULL argument */
2547 break;
2550 ret = get_str(buf, sizeof(buf), &p);
2551 if (ret < 0) {
2552 switch(c) {
2553 case 'F':
2554 monitor_printf(mon, "%s: filename expected\n",
2555 cmd->name);
2556 break;
2557 case 'B':
2558 monitor_printf(mon, "%s: block device name expected\n",
2559 cmd->name);
2560 break;
2561 default:
2562 monitor_printf(mon, "%s: string expected\n", cmd->name);
2563 break;
2565 goto fail;
2567 qdict_put(qdict, key, qstring_from_str(buf));
2569 break;
2570 case 'O':
2572 QemuOptsList *opts_list;
2573 QemuOpts *opts;
2575 opts_list = qemu_find_opts(key);
2576 if (!opts_list || opts_list->desc->name) {
2577 goto bad_type;
2579 while (qemu_isspace(*p)) {
2580 p++;
2582 if (!*p)
2583 break;
2584 if (get_str(buf, sizeof(buf), &p) < 0) {
2585 goto fail;
2587 opts = qemu_opts_parse_noisily(opts_list, buf, true);
2588 if (!opts) {
2589 goto fail;
2591 qemu_opts_to_qdict(opts, qdict);
2592 qemu_opts_del(opts);
2594 break;
2595 case '/':
2597 int count, format, size;
2599 while (qemu_isspace(*p))
2600 p++;
2601 if (*p == '/') {
2602 /* format found */
2603 p++;
2604 count = 1;
2605 if (qemu_isdigit(*p)) {
2606 count = 0;
2607 while (qemu_isdigit(*p)) {
2608 count = count * 10 + (*p - '0');
2609 p++;
2612 size = -1;
2613 format = -1;
2614 for(;;) {
2615 switch(*p) {
2616 case 'o':
2617 case 'd':
2618 case 'u':
2619 case 'x':
2620 case 'i':
2621 case 'c':
2622 format = *p++;
2623 break;
2624 case 'b':
2625 size = 1;
2626 p++;
2627 break;
2628 case 'h':
2629 size = 2;
2630 p++;
2631 break;
2632 case 'w':
2633 size = 4;
2634 p++;
2635 break;
2636 case 'g':
2637 case 'L':
2638 size = 8;
2639 p++;
2640 break;
2641 default:
2642 goto next;
2645 next:
2646 if (*p != '\0' && !qemu_isspace(*p)) {
2647 monitor_printf(mon, "invalid char in format: '%c'\n",
2648 *p);
2649 goto fail;
2651 if (format < 0)
2652 format = default_fmt_format;
2653 if (format != 'i') {
2654 /* for 'i', not specifying a size gives -1 as size */
2655 if (size < 0)
2656 size = default_fmt_size;
2657 default_fmt_size = size;
2659 default_fmt_format = format;
2660 } else {
2661 count = 1;
2662 format = default_fmt_format;
2663 if (format != 'i') {
2664 size = default_fmt_size;
2665 } else {
2666 size = -1;
2669 qdict_put(qdict, "count", qint_from_int(count));
2670 qdict_put(qdict, "format", qint_from_int(format));
2671 qdict_put(qdict, "size", qint_from_int(size));
2673 break;
2674 case 'i':
2675 case 'l':
2676 case 'M':
2678 int64_t val;
2680 while (qemu_isspace(*p))
2681 p++;
2682 if (*typestr == '?' || *typestr == '.') {
2683 if (*typestr == '?') {
2684 if (*p == '\0') {
2685 typestr++;
2686 break;
2688 } else {
2689 if (*p == '.') {
2690 p++;
2691 while (qemu_isspace(*p))
2692 p++;
2693 } else {
2694 typestr++;
2695 break;
2698 typestr++;
2700 if (get_expr(mon, &val, &p))
2701 goto fail;
2702 /* Check if 'i' is greater than 32-bit */
2703 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
2704 monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
2705 monitor_printf(mon, "integer is for 32-bit values\n");
2706 goto fail;
2707 } else if (c == 'M') {
2708 if (val < 0) {
2709 monitor_printf(mon, "enter a positive value\n");
2710 goto fail;
2712 val <<= 20;
2714 qdict_put(qdict, key, qint_from_int(val));
2716 break;
2717 case 'o':
2719 int64_t val;
2720 char *end;
2722 while (qemu_isspace(*p)) {
2723 p++;
2725 if (*typestr == '?') {
2726 typestr++;
2727 if (*p == '\0') {
2728 break;
2731 val = qemu_strtosz(p, &end);
2732 if (val < 0) {
2733 monitor_printf(mon, "invalid size\n");
2734 goto fail;
2736 qdict_put(qdict, key, qint_from_int(val));
2737 p = end;
2739 break;
2740 case 'T':
2742 double val;
2744 while (qemu_isspace(*p))
2745 p++;
2746 if (*typestr == '?') {
2747 typestr++;
2748 if (*p == '\0') {
2749 break;
2752 if (get_double(mon, &val, &p) < 0) {
2753 goto fail;
2755 if (p[0] && p[1] == 's') {
2756 switch (*p) {
2757 case 'm':
2758 val /= 1e3; p += 2; break;
2759 case 'u':
2760 val /= 1e6; p += 2; break;
2761 case 'n':
2762 val /= 1e9; p += 2; break;
2765 if (*p && !qemu_isspace(*p)) {
2766 monitor_printf(mon, "Unknown unit suffix\n");
2767 goto fail;
2769 qdict_put(qdict, key, qfloat_from_double(val));
2771 break;
2772 case 'b':
2774 const char *beg;
2775 bool val;
2777 while (qemu_isspace(*p)) {
2778 p++;
2780 beg = p;
2781 while (qemu_isgraph(*p)) {
2782 p++;
2784 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
2785 val = true;
2786 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
2787 val = false;
2788 } else {
2789 monitor_printf(mon, "Expected 'on' or 'off'\n");
2790 goto fail;
2792 qdict_put(qdict, key, qbool_from_bool(val));
2794 break;
2795 case '-':
2797 const char *tmp = p;
2798 int skip_key = 0;
2799 /* option */
2801 c = *typestr++;
2802 if (c == '\0')
2803 goto bad_type;
2804 while (qemu_isspace(*p))
2805 p++;
2806 if (*p == '-') {
2807 p++;
2808 if(c != *p) {
2809 if(!is_valid_option(p, typestr)) {
2811 monitor_printf(mon, "%s: unsupported option -%c\n",
2812 cmd->name, *p);
2813 goto fail;
2814 } else {
2815 skip_key = 1;
2818 if(skip_key) {
2819 p = tmp;
2820 } else {
2821 /* has option */
2822 p++;
2823 qdict_put(qdict, key, qbool_from_bool(true));
2827 break;
2828 case 'S':
2830 /* package all remaining string */
2831 int len;
2833 while (qemu_isspace(*p)) {
2834 p++;
2836 if (*typestr == '?') {
2837 typestr++;
2838 if (*p == '\0') {
2839 /* no remaining string: NULL argument */
2840 break;
2843 len = strlen(p);
2844 if (len <= 0) {
2845 monitor_printf(mon, "%s: string expected\n",
2846 cmd->name);
2847 goto fail;
2849 qdict_put(qdict, key, qstring_from_str(p));
2850 p += len;
2852 break;
2853 default:
2854 bad_type:
2855 monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
2856 goto fail;
2858 g_free(key);
2859 key = NULL;
2861 /* check that all arguments were parsed */
2862 while (qemu_isspace(*p))
2863 p++;
2864 if (*p != '\0') {
2865 monitor_printf(mon, "%s: extraneous characters at the end of line\n",
2866 cmd->name);
2867 goto fail;
2870 return qdict;
2872 fail:
2873 QDECREF(qdict);
2874 g_free(key);
2875 return NULL;
2878 static void handle_hmp_command(Monitor *mon, const char *cmdline)
2880 QDict *qdict;
2881 const mon_cmd_t *cmd;
2883 cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table);
2884 if (!cmd) {
2885 return;
2888 qdict = monitor_parse_arguments(mon, &cmdline, cmd);
2889 if (!qdict) {
2890 monitor_printf(mon, "Try \"help %s\" for more information\n",
2891 cmd->name);
2892 return;
2895 cmd->mhandler.cmd(mon, qdict);
2896 QDECREF(qdict);
2899 static void cmd_completion(Monitor *mon, const char *name, const char *list)
2901 const char *p, *pstart;
2902 char cmd[128];
2903 int len;
2905 p = list;
2906 for(;;) {
2907 pstart = p;
2908 p = strchr(p, '|');
2909 if (!p)
2910 p = pstart + strlen(pstart);
2911 len = p - pstart;
2912 if (len > sizeof(cmd) - 2)
2913 len = sizeof(cmd) - 2;
2914 memcpy(cmd, pstart, len);
2915 cmd[len] = '\0';
2916 if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
2917 readline_add_completion(mon->rs, cmd);
2919 if (*p == '\0')
2920 break;
2921 p++;
2925 static void file_completion(Monitor *mon, const char *input)
2927 DIR *ffs;
2928 struct dirent *d;
2929 char path[1024];
2930 char file[1024], file_prefix[1024];
2931 int input_path_len;
2932 const char *p;
2934 p = strrchr(input, '/');
2935 if (!p) {
2936 input_path_len = 0;
2937 pstrcpy(file_prefix, sizeof(file_prefix), input);
2938 pstrcpy(path, sizeof(path), ".");
2939 } else {
2940 input_path_len = p - input + 1;
2941 memcpy(path, input, input_path_len);
2942 if (input_path_len > sizeof(path) - 1)
2943 input_path_len = sizeof(path) - 1;
2944 path[input_path_len] = '\0';
2945 pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
2948 ffs = opendir(path);
2949 if (!ffs)
2950 return;
2951 for(;;) {
2952 struct stat sb;
2953 d = readdir(ffs);
2954 if (!d)
2955 break;
2957 if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
2958 continue;
2961 if (strstart(d->d_name, file_prefix, NULL)) {
2962 memcpy(file, input, input_path_len);
2963 if (input_path_len < sizeof(file))
2964 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
2965 d->d_name);
2966 /* stat the file to find out if it's a directory.
2967 * In that case add a slash to speed up typing long paths
2969 if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
2970 pstrcat(file, sizeof(file), "/");
2972 readline_add_completion(mon->rs, file);
2975 closedir(ffs);
2978 static const char *next_arg_type(const char *typestr)
2980 const char *p = strchr(typestr, ':');
2981 return (p != NULL ? ++p : typestr);
2984 static void add_completion_option(ReadLineState *rs, const char *str,
2985 const char *option)
2987 if (!str || !option) {
2988 return;
2990 if (!strncmp(option, str, strlen(str))) {
2991 readline_add_completion(rs, option);
2995 void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
2997 size_t len;
2998 ChardevBackendInfoList *list, *start;
3000 if (nb_args != 2) {
3001 return;
3003 len = strlen(str);
3004 readline_set_completion_index(rs, len);
3006 start = list = qmp_query_chardev_backends(NULL);
3007 while (list) {
3008 const char *chr_name = list->value->name;
3010 if (!strncmp(chr_name, str, len)) {
3011 readline_add_completion(rs, chr_name);
3013 list = list->next;
3015 qapi_free_ChardevBackendInfoList(start);
3018 void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
3020 size_t len;
3021 int i;
3023 if (nb_args != 2) {
3024 return;
3026 len = strlen(str);
3027 readline_set_completion_index(rs, len);
3028 for (i = 0; NetClientOptionsKind_lookup[i]; i++) {
3029 add_completion_option(rs, str, NetClientOptionsKind_lookup[i]);
3033 void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
3035 GSList *list, *elt;
3036 size_t len;
3038 if (nb_args != 2) {
3039 return;
3042 len = strlen(str);
3043 readline_set_completion_index(rs, len);
3044 list = elt = object_class_get_list(TYPE_DEVICE, false);
3045 while (elt) {
3046 const char *name;
3047 DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
3048 TYPE_DEVICE);
3049 name = object_class_get_name(OBJECT_CLASS(dc));
3051 if (!dc->cannot_instantiate_with_device_add_yet
3052 && !strncmp(name, str, len)) {
3053 readline_add_completion(rs, name);
3055 elt = elt->next;
3057 g_slist_free(list);
3060 void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
3062 GSList *list, *elt;
3063 size_t len;
3065 if (nb_args != 2) {
3066 return;
3069 len = strlen(str);
3070 readline_set_completion_index(rs, len);
3071 list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
3072 while (elt) {
3073 const char *name;
3075 name = object_class_get_name(OBJECT_CLASS(elt->data));
3076 if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
3077 readline_add_completion(rs, name);
3079 elt = elt->next;
3081 g_slist_free(list);
3084 static void peripheral_device_del_completion(ReadLineState *rs,
3085 const char *str, size_t len)
3087 Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
3088 GSList *list, *item;
3090 list = qdev_build_hotpluggable_device_list(peripheral);
3091 if (!list) {
3092 return;
3095 for (item = list; item; item = g_slist_next(item)) {
3096 DeviceState *dev = item->data;
3098 if (dev->id && !strncmp(str, dev->id, len)) {
3099 readline_add_completion(rs, dev->id);
3103 g_slist_free(list);
3106 void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3108 size_t len;
3109 ChardevInfoList *list, *start;
3111 if (nb_args != 2) {
3112 return;
3114 len = strlen(str);
3115 readline_set_completion_index(rs, len);
3117 start = list = qmp_query_chardev(NULL);
3118 while (list) {
3119 ChardevInfo *chr = list->value;
3121 if (!strncmp(chr->label, str, len)) {
3122 readline_add_completion(rs, chr->label);
3124 list = list->next;
3126 qapi_free_ChardevInfoList(start);
3129 static void ringbuf_completion(ReadLineState *rs, const char *str)
3131 size_t len;
3132 ChardevInfoList *list, *start;
3134 len = strlen(str);
3135 readline_set_completion_index(rs, len);
3137 start = list = qmp_query_chardev(NULL);
3138 while (list) {
3139 ChardevInfo *chr_info = list->value;
3141 if (!strncmp(chr_info->label, str, len)) {
3142 CharDriverState *chr = qemu_chr_find(chr_info->label);
3143 if (chr && chr_is_ringbuf(chr)) {
3144 readline_add_completion(rs, chr_info->label);
3147 list = list->next;
3149 qapi_free_ChardevInfoList(start);
3152 void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
3154 if (nb_args != 2) {
3155 return;
3157 ringbuf_completion(rs, str);
3160 void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
3162 size_t len;
3164 if (nb_args != 2) {
3165 return;
3168 len = strlen(str);
3169 readline_set_completion_index(rs, len);
3170 peripheral_device_del_completion(rs, str, len);
3173 void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
3175 ObjectPropertyInfoList *list, *start;
3176 size_t len;
3178 if (nb_args != 2) {
3179 return;
3181 len = strlen(str);
3182 readline_set_completion_index(rs, len);
3184 start = list = qmp_qom_list("/objects", NULL);
3185 while (list) {
3186 ObjectPropertyInfo *info = list->value;
3188 if (!strncmp(info->type, "child<", 5)
3189 && !strncmp(info->name, str, len)) {
3190 readline_add_completion(rs, info->name);
3192 list = list->next;
3194 qapi_free_ObjectPropertyInfoList(start);
3197 void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
3199 int i;
3200 char *sep;
3201 size_t len;
3203 if (nb_args != 2) {
3204 return;
3206 sep = strrchr(str, '-');
3207 if (sep) {
3208 str = sep + 1;
3210 len = strlen(str);
3211 readline_set_completion_index(rs, len);
3212 for (i = 0; i < Q_KEY_CODE_MAX; i++) {
3213 if (!strncmp(str, QKeyCode_lookup[i], len)) {
3214 readline_add_completion(rs, QKeyCode_lookup[i]);
3219 void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
3221 size_t len;
3223 len = strlen(str);
3224 readline_set_completion_index(rs, len);
3225 if (nb_args == 2) {
3226 NetClientState *ncs[MAX_QUEUE_NUM];
3227 int count, i;
3228 count = qemu_find_net_clients_except(NULL, ncs,
3229 NET_CLIENT_OPTIONS_KIND_NONE,
3230 MAX_QUEUE_NUM);
3231 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3232 const char *name = ncs[i]->name;
3233 if (!strncmp(str, name, len)) {
3234 readline_add_completion(rs, name);
3237 } else if (nb_args == 3) {
3238 add_completion_option(rs, str, "on");
3239 add_completion_option(rs, str, "off");
3243 void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
3245 int len, count, i;
3246 NetClientState *ncs[MAX_QUEUE_NUM];
3248 if (nb_args != 2) {
3249 return;
3252 len = strlen(str);
3253 readline_set_completion_index(rs, len);
3254 count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_OPTIONS_KIND_NIC,
3255 MAX_QUEUE_NUM);
3256 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3257 QemuOpts *opts;
3258 const char *name = ncs[i]->name;
3259 if (strncmp(str, name, len)) {
3260 continue;
3262 opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
3263 if (opts) {
3264 readline_add_completion(rs, name);
3269 void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
3271 size_t len;
3273 len = strlen(str);
3274 readline_set_completion_index(rs, len);
3275 if (nb_args == 2) {
3276 TraceEventID id;
3277 for (id = 0; id < trace_event_count(); id++) {
3278 const char *event_name = trace_event_get_name(trace_event_id(id));
3279 if (!strncmp(str, event_name, len)) {
3280 readline_add_completion(rs, event_name);
3283 } else if (nb_args == 3) {
3284 add_completion_option(rs, str, "on");
3285 add_completion_option(rs, str, "off");
3289 void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
3291 int i;
3293 if (nb_args != 2) {
3294 return;
3296 readline_set_completion_index(rs, strlen(str));
3297 for (i = 0; WatchdogExpirationAction_lookup[i]; i++) {
3298 add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]);
3302 void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
3303 const char *str)
3305 size_t len;
3307 len = strlen(str);
3308 readline_set_completion_index(rs, len);
3309 if (nb_args == 2) {
3310 int i;
3311 for (i = 0; i < MIGRATION_CAPABILITY_MAX; i++) {
3312 const char *name = MigrationCapability_lookup[i];
3313 if (!strncmp(str, name, len)) {
3314 readline_add_completion(rs, name);
3317 } else if (nb_args == 3) {
3318 add_completion_option(rs, str, "on");
3319 add_completion_option(rs, str, "off");
3323 void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
3324 const char *str)
3326 size_t len;
3328 len = strlen(str);
3329 readline_set_completion_index(rs, len);
3330 if (nb_args == 2) {
3331 int i;
3332 for (i = 0; i < MIGRATION_PARAMETER_MAX; i++) {
3333 const char *name = MigrationParameter_lookup[i];
3334 if (!strncmp(str, name, len)) {
3335 readline_add_completion(rs, name);
3341 void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str)
3343 int i;
3344 size_t len;
3345 if (nb_args != 2) {
3346 return;
3348 len = strlen(str);
3349 readline_set_completion_index(rs, len);
3350 for (i = 0; host_net_devices[i]; i++) {
3351 if (!strncmp(host_net_devices[i], str, len)) {
3352 readline_add_completion(rs, host_net_devices[i]);
3357 void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str)
3359 NetClientState *ncs[MAX_QUEUE_NUM];
3360 int count, i, len;
3362 len = strlen(str);
3363 readline_set_completion_index(rs, len);
3364 if (nb_args == 2) {
3365 count = qemu_find_net_clients_except(NULL, ncs,
3366 NET_CLIENT_OPTIONS_KIND_NONE,
3367 MAX_QUEUE_NUM);
3368 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3369 int id;
3370 char name[16];
3372 if (net_hub_id_for_client(ncs[i], &id)) {
3373 continue;
3375 snprintf(name, sizeof(name), "%d", id);
3376 if (!strncmp(str, name, len)) {
3377 readline_add_completion(rs, name);
3380 return;
3381 } else if (nb_args == 3) {
3382 count = qemu_find_net_clients_except(NULL, ncs,
3383 NET_CLIENT_OPTIONS_KIND_NIC,
3384 MAX_QUEUE_NUM);
3385 for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
3386 int id;
3387 const char *name;
3389 if (ncs[i]->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT ||
3390 net_hub_id_for_client(ncs[i], &id)) {
3391 continue;
3393 name = ncs[i]->name;
3394 if (!strncmp(str, name, len)) {
3395 readline_add_completion(rs, name);
3398 return;
3402 static void vm_completion(ReadLineState *rs, const char *str)
3404 size_t len;
3405 BlockDriverState *bs = NULL;
3407 len = strlen(str);
3408 readline_set_completion_index(rs, len);
3409 while ((bs = bdrv_next(bs))) {
3410 SnapshotInfoList *snapshots, *snapshot;
3412 if (!bdrv_can_snapshot(bs)) {
3413 continue;
3415 if (bdrv_query_snapshot_info_list(bs, &snapshots, NULL)) {
3416 continue;
3418 snapshot = snapshots;
3419 while (snapshot) {
3420 char *completion = snapshot->value->name;
3421 if (!strncmp(str, completion, len)) {
3422 readline_add_completion(rs, completion);
3424 completion = snapshot->value->id;
3425 if (!strncmp(str, completion, len)) {
3426 readline_add_completion(rs, completion);
3428 snapshot = snapshot->next;
3430 qapi_free_SnapshotInfoList(snapshots);
3435 void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
3437 if (nb_args == 2) {
3438 vm_completion(rs, str);
3442 void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
3444 if (nb_args == 2) {
3445 vm_completion(rs, str);
3449 static void monitor_find_completion_by_table(Monitor *mon,
3450 const mon_cmd_t *cmd_table,
3451 char **args,
3452 int nb_args)
3454 const char *cmdname;
3455 int i;
3456 const char *ptype, *str, *name;
3457 const mon_cmd_t *cmd;
3458 BlockDriverState *bs;
3460 if (nb_args <= 1) {
3461 /* command completion */
3462 if (nb_args == 0)
3463 cmdname = "";
3464 else
3465 cmdname = args[0];
3466 readline_set_completion_index(mon->rs, strlen(cmdname));
3467 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3468 cmd_completion(mon, cmdname, cmd->name);
3470 } else {
3471 /* find the command */
3472 for (cmd = cmd_table; cmd->name != NULL; cmd++) {
3473 if (compare_cmd(args[0], cmd->name)) {
3474 break;
3477 if (!cmd->name) {
3478 return;
3481 if (cmd->sub_table) {
3482 /* do the job again */
3483 monitor_find_completion_by_table(mon, cmd->sub_table,
3484 &args[1], nb_args - 1);
3485 return;
3487 if (cmd->command_completion) {
3488 cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
3489 return;
3492 ptype = next_arg_type(cmd->args_type);
3493 for(i = 0; i < nb_args - 2; i++) {
3494 if (*ptype != '\0') {
3495 ptype = next_arg_type(ptype);
3496 while (*ptype == '?')
3497 ptype = next_arg_type(ptype);
3500 str = args[nb_args - 1];
3501 while (*ptype == '-' && ptype[1] != '\0') {
3502 ptype = next_arg_type(ptype);
3504 switch(*ptype) {
3505 case 'F':
3506 /* file completion */
3507 readline_set_completion_index(mon->rs, strlen(str));
3508 file_completion(mon, str);
3509 break;
3510 case 'B':
3511 /* block device name completion */
3512 readline_set_completion_index(mon->rs, strlen(str));
3513 for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
3514 name = bdrv_get_device_name(bs);
3515 if (str[0] == '\0' ||
3516 !strncmp(name, str, strlen(str))) {
3517 readline_add_completion(mon->rs, name);
3520 break;
3521 case 's':
3522 case 'S':
3523 if (!strcmp(cmd->name, "help|?")) {
3524 monitor_find_completion_by_table(mon, cmd_table,
3525 &args[1], nb_args - 1);
3527 break;
3528 default:
3529 break;
3534 static void monitor_find_completion(void *opaque,
3535 const char *cmdline)
3537 Monitor *mon = opaque;
3538 char *args[MAX_ARGS];
3539 int nb_args, len;
3541 /* 1. parse the cmdline */
3542 if (parse_cmdline(cmdline, &nb_args, args) < 0) {
3543 return;
3546 /* if the line ends with a space, it means we want to complete the
3547 next arg */
3548 len = strlen(cmdline);
3549 if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3550 if (nb_args >= MAX_ARGS) {
3551 goto cleanup;
3553 args[nb_args++] = g_strdup("");
3556 /* 2. auto complete according to args */
3557 monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
3559 cleanup:
3560 free_cmdline_args(args, nb_args);
3563 static int monitor_can_read(void *opaque)
3565 Monitor *mon = opaque;
3567 return (mon->suspend_cnt == 0) ? 1 : 0;
3570 static bool invalid_qmp_mode(const Monitor *mon, const mon_cmd_t *cmd,
3571 Error **errp)
3573 bool is_cap = cmd->mhandler.cmd_new == qmp_capabilities;
3575 if (is_cap && mon->qmp.in_command_mode) {
3576 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3577 "Capabilities negotiation is already complete, command "
3578 "'%s' ignored", cmd->name);
3579 return true;
3581 if (!is_cap && !mon->qmp.in_command_mode) {
3582 error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
3583 "Expecting capabilities negotiation with "
3584 "'qmp_capabilities' before command '%s'", cmd->name);
3585 return true;
3587 return false;
3591 * Argument validation rules:
3593 * 1. The argument must exist in cmd_args qdict
3594 * 2. The argument type must be the expected one
3596 * Special case: If the argument doesn't exist in cmd_args and
3597 * the QMP_ACCEPT_UNKNOWNS flag is set, then the
3598 * checking is skipped for it.
3600 static void check_client_args_type(const QDict *client_args,
3601 const QDict *cmd_args, int flags,
3602 Error **errp)
3604 const QDictEntry *ent;
3606 for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
3607 QObject *obj;
3608 QString *arg_type;
3609 const QObject *client_arg = qdict_entry_value(ent);
3610 const char *client_arg_name = qdict_entry_key(ent);
3612 obj = qdict_get(cmd_args, client_arg_name);
3613 if (!obj) {
3614 if (flags & QMP_ACCEPT_UNKNOWNS) {
3615 /* handler accepts unknowns */
3616 continue;
3618 /* client arg doesn't exist */
3619 error_setg(errp, QERR_INVALID_PARAMETER, client_arg_name);
3620 return;
3623 arg_type = qobject_to_qstring(obj);
3624 assert(arg_type != NULL);
3626 /* check if argument's type is correct */
3627 switch (qstring_get_str(arg_type)[0]) {
3628 case 'F':
3629 case 'B':
3630 case 's':
3631 if (qobject_type(client_arg) != QTYPE_QSTRING) {
3632 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3633 client_arg_name, "string");
3634 return;
3636 break;
3637 case 'i':
3638 case 'l':
3639 case 'M':
3640 case 'o':
3641 if (qobject_type(client_arg) != QTYPE_QINT) {
3642 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3643 client_arg_name, "int");
3644 return;
3646 break;
3647 case 'T':
3648 if (qobject_type(client_arg) != QTYPE_QINT &&
3649 qobject_type(client_arg) != QTYPE_QFLOAT) {
3650 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3651 client_arg_name, "number");
3652 return;
3654 break;
3655 case 'b':
3656 case '-':
3657 if (qobject_type(client_arg) != QTYPE_QBOOL) {
3658 error_setg(errp, QERR_INVALID_PARAMETER_TYPE,
3659 client_arg_name, "bool");
3660 return;
3662 break;
3663 case 'O':
3664 assert(flags & QMP_ACCEPT_UNKNOWNS);
3665 break;
3666 case 'q':
3667 /* Any QObject can be passed. */
3668 break;
3669 case '/':
3670 case '.':
3672 * These types are not supported by QMP and thus are not
3673 * handled here. Fall through.
3675 default:
3676 abort();
3682 * - Check if the client has passed all mandatory args
3683 * - Set special flags for argument validation
3685 static void check_mandatory_args(const QDict *cmd_args,
3686 const QDict *client_args, int *flags,
3687 Error **errp)
3689 const QDictEntry *ent;
3691 for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
3692 const char *cmd_arg_name = qdict_entry_key(ent);
3693 QString *type = qobject_to_qstring(qdict_entry_value(ent));
3694 assert(type != NULL);
3696 if (qstring_get_str(type)[0] == 'O') {
3697 assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
3698 *flags |= QMP_ACCEPT_UNKNOWNS;
3699 } else if (qstring_get_str(type)[0] != '-' &&
3700 qstring_get_str(type)[1] != '?' &&
3701 !qdict_haskey(client_args, cmd_arg_name)) {
3702 error_setg(errp, QERR_MISSING_PARAMETER, cmd_arg_name);
3703 return;
3708 static QDict *qdict_from_args_type(const char *args_type)
3710 int i;
3711 QDict *qdict;
3712 QString *key, *type, *cur_qs;
3714 assert(args_type != NULL);
3716 qdict = qdict_new();
3718 if (args_type == NULL || args_type[0] == '\0') {
3719 /* no args, empty qdict */
3720 goto out;
3723 key = qstring_new();
3724 type = qstring_new();
3726 cur_qs = key;
3728 for (i = 0;; i++) {
3729 switch (args_type[i]) {
3730 case ',':
3731 case '\0':
3732 qdict_put(qdict, qstring_get_str(key), type);
3733 QDECREF(key);
3734 if (args_type[i] == '\0') {
3735 goto out;
3737 type = qstring_new(); /* qdict has ref */
3738 cur_qs = key = qstring_new();
3739 break;
3740 case ':':
3741 cur_qs = type;
3742 break;
3743 default:
3744 qstring_append_chr(cur_qs, args_type[i]);
3745 break;
3749 out:
3750 return qdict;
3754 * Client argument checking rules:
3756 * 1. Client must provide all mandatory arguments
3757 * 2. Each argument provided by the client must be expected
3758 * 3. Each argument provided by the client must have the type expected
3759 * by the command
3761 static void qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args,
3762 Error **errp)
3764 Error *err = NULL;
3765 int flags;
3766 QDict *cmd_args;
3768 cmd_args = qdict_from_args_type(cmd->args_type);
3770 flags = 0;
3771 check_mandatory_args(cmd_args, client_args, &flags, &err);
3772 if (err) {
3773 goto out;
3776 check_client_args_type(client_args, cmd_args, flags, &err);
3778 out:
3779 error_propagate(errp, err);
3780 QDECREF(cmd_args);
3784 * Input object checking rules
3786 * 1. Input object must be a dict
3787 * 2. The "execute" key must exist
3788 * 3. The "execute" key must be a string
3789 * 4. If the "arguments" key exists, it must be a dict
3790 * 5. If the "id" key exists, it can be anything (ie. json-value)
3791 * 6. Any argument not listed above is considered invalid
3793 static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp)
3795 const QDictEntry *ent;
3796 int has_exec_key = 0;
3797 QDict *input_dict;
3799 if (qobject_type(input_obj) != QTYPE_QDICT) {
3800 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object");
3801 return NULL;
3804 input_dict = qobject_to_qdict(input_obj);
3806 for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
3807 const char *arg_name = qdict_entry_key(ent);
3808 const QObject *arg_obj = qdict_entry_value(ent);
3810 if (!strcmp(arg_name, "execute")) {
3811 if (qobject_type(arg_obj) != QTYPE_QSTRING) {
3812 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3813 "execute", "string");
3814 return NULL;
3816 has_exec_key = 1;
3817 } else if (!strcmp(arg_name, "arguments")) {
3818 if (qobject_type(arg_obj) != QTYPE_QDICT) {
3819 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER,
3820 "arguments", "object");
3821 return NULL;
3823 } else if (!strcmp(arg_name, "id")) {
3824 /* Any string is acceptable as "id", so nothing to check */
3825 } else {
3826 error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name);
3827 return NULL;
3831 if (!has_exec_key) {
3832 error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute");
3833 return NULL;
3836 return input_dict;
3839 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
3841 Error *local_err = NULL;
3842 QObject *obj, *data;
3843 QDict *input, *args;
3844 const mon_cmd_t *cmd;
3845 const char *cmd_name;
3846 Monitor *mon = cur_mon;
3848 args = input = NULL;
3849 data = NULL;
3851 obj = json_parser_parse(tokens, NULL);
3852 if (!obj) {
3853 // FIXME: should be triggered in json_parser_parse()
3854 error_setg(&local_err, QERR_JSON_PARSING);
3855 goto err_out;
3858 input = qmp_check_input_obj(obj, &local_err);
3859 if (!input) {
3860 qobject_decref(obj);
3861 goto err_out;
3864 mon->qmp.id = qdict_get(input, "id");
3865 qobject_incref(mon->qmp.id);
3867 cmd_name = qdict_get_str(input, "execute");
3868 trace_handle_qmp_command(mon, cmd_name);
3869 cmd = qmp_find_cmd(cmd_name);
3870 if (!cmd) {
3871 error_set(&local_err, ERROR_CLASS_COMMAND_NOT_FOUND,
3872 "The command %s has not been found", cmd_name);
3873 goto err_out;
3875 if (invalid_qmp_mode(mon, cmd, &local_err)) {
3876 goto err_out;
3879 obj = qdict_get(input, "arguments");
3880 if (!obj) {
3881 args = qdict_new();
3882 } else {
3883 args = qobject_to_qdict(obj);
3884 QINCREF(args);
3887 qmp_check_client_args(cmd, args, &local_err);
3888 if (local_err) {
3889 goto err_out;
3892 cmd->mhandler.cmd_new(args, &data, &local_err);
3894 err_out:
3895 monitor_protocol_emitter(mon, data, local_err);
3896 qobject_decref(data);
3897 QDECREF(input);
3898 QDECREF(args);
3901 static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
3903 Monitor *old_mon = cur_mon;
3905 cur_mon = opaque;
3907 json_message_parser_feed(&cur_mon->qmp.parser, (const char *) buf, size);
3909 cur_mon = old_mon;
3912 static void monitor_read(void *opaque, const uint8_t *buf, int size)
3914 Monitor *old_mon = cur_mon;
3915 int i;
3917 cur_mon = opaque;
3919 if (cur_mon->rs) {
3920 for (i = 0; i < size; i++)
3921 readline_handle_byte(cur_mon->rs, buf[i]);
3922 } else {
3923 if (size == 0 || buf[size - 1] != 0)
3924 monitor_printf(cur_mon, "corrupted command\n");
3925 else
3926 handle_hmp_command(cur_mon, (char *)buf);
3929 cur_mon = old_mon;
3932 static void monitor_command_cb(void *opaque, const char *cmdline,
3933 void *readline_opaque)
3935 Monitor *mon = opaque;
3937 monitor_suspend(mon);
3938 handle_hmp_command(mon, cmdline);
3939 monitor_resume(mon);
3942 int monitor_suspend(Monitor *mon)
3944 if (!mon->rs)
3945 return -ENOTTY;
3946 mon->suspend_cnt++;
3947 return 0;
3950 void monitor_resume(Monitor *mon)
3952 if (!mon->rs)
3953 return;
3954 if (--mon->suspend_cnt == 0)
3955 readline_show_prompt(mon->rs);
3958 static QObject *get_qmp_greeting(void)
3960 QObject *ver = NULL;
3962 qmp_marshal_query_version(NULL, &ver, NULL);
3963 return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
3966 static void monitor_qmp_event(void *opaque, int event)
3968 QObject *data;
3969 Monitor *mon = opaque;
3971 switch (event) {
3972 case CHR_EVENT_OPENED:
3973 mon->qmp.in_command_mode = false;
3974 data = get_qmp_greeting();
3975 monitor_json_emitter(mon, data);
3976 qobject_decref(data);
3977 mon_refcount++;
3978 break;
3979 case CHR_EVENT_CLOSED:
3980 json_message_parser_destroy(&mon->qmp.parser);
3981 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
3982 mon_refcount--;
3983 monitor_fdsets_cleanup();
3984 break;
3988 static void monitor_event(void *opaque, int event)
3990 Monitor *mon = opaque;
3992 switch (event) {
3993 case CHR_EVENT_MUX_IN:
3994 qemu_mutex_lock(&mon->out_lock);
3995 mon->mux_out = 0;
3996 qemu_mutex_unlock(&mon->out_lock);
3997 if (mon->reset_seen) {
3998 readline_restart(mon->rs);
3999 monitor_resume(mon);
4000 monitor_flush(mon);
4001 } else {
4002 mon->suspend_cnt = 0;
4004 break;
4006 case CHR_EVENT_MUX_OUT:
4007 if (mon->reset_seen) {
4008 if (mon->suspend_cnt == 0) {
4009 monitor_printf(mon, "\n");
4011 monitor_flush(mon);
4012 monitor_suspend(mon);
4013 } else {
4014 mon->suspend_cnt++;
4016 qemu_mutex_lock(&mon->out_lock);
4017 mon->mux_out = 1;
4018 qemu_mutex_unlock(&mon->out_lock);
4019 break;
4021 case CHR_EVENT_OPENED:
4022 monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4023 "information\n", QEMU_VERSION);
4024 if (!mon->mux_out) {
4025 readline_restart(mon->rs);
4026 readline_show_prompt(mon->rs);
4028 mon->reset_seen = 1;
4029 mon_refcount++;
4030 break;
4032 case CHR_EVENT_CLOSED:
4033 mon_refcount--;
4034 monitor_fdsets_cleanup();
4035 break;
4039 static int
4040 compare_mon_cmd(const void *a, const void *b)
4042 return strcmp(((const mon_cmd_t *)a)->name,
4043 ((const mon_cmd_t *)b)->name);
4046 static void sortcmdlist(void)
4048 int array_num;
4049 int elem_size = sizeof(mon_cmd_t);
4051 array_num = sizeof(mon_cmds)/elem_size-1;
4052 qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
4054 array_num = sizeof(info_cmds)/elem_size-1;
4055 qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
4060 * Local variables:
4061 * c-indent-level: 4
4062 * c-basic-offset: 4
4063 * tab-width: 8
4064 * End:
4067 /* These functions just adapt the readline interface in a typesafe way. We
4068 * could cast function pointers but that discards compiler checks.
4070 static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
4071 const char *fmt, ...)
4073 va_list ap;
4074 va_start(ap, fmt);
4075 monitor_vprintf(opaque, fmt, ap);
4076 va_end(ap);
4079 static void monitor_readline_flush(void *opaque)
4081 monitor_flush(opaque);
4084 static void __attribute__((constructor)) monitor_lock_init(void)
4086 qemu_mutex_init(&monitor_lock);
4089 void monitor_init(CharDriverState *chr, int flags)
4091 static int is_first_init = 1;
4092 Monitor *mon;
4094 if (is_first_init) {
4095 monitor_qapi_event_init();
4096 sortcmdlist();
4097 is_first_init = 0;
4100 mon = g_malloc(sizeof(*mon));
4101 monitor_data_init(mon);
4103 mon->chr = chr;
4104 mon->flags = flags;
4105 if (flags & MONITOR_USE_READLINE) {
4106 mon->rs = readline_init(monitor_readline_printf,
4107 monitor_readline_flush,
4108 mon,
4109 monitor_find_completion);
4110 monitor_read_command(mon, 0);
4113 if (monitor_is_qmp(mon)) {
4114 qemu_chr_add_handlers(chr, monitor_can_read, monitor_qmp_read,
4115 monitor_qmp_event, mon);
4116 qemu_chr_fe_set_echo(chr, true);
4117 json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
4118 } else {
4119 qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4120 monitor_event, mon);
4123 qemu_mutex_lock(&monitor_lock);
4124 QLIST_INSERT_HEAD(&mon_list, mon, entry);
4125 qemu_mutex_unlock(&monitor_lock);
4128 static void bdrv_password_cb(void *opaque, const char *password,
4129 void *readline_opaque)
4131 Monitor *mon = opaque;
4132 BlockDriverState *bs = readline_opaque;
4133 int ret = 0;
4134 Error *local_err = NULL;
4136 bdrv_add_key(bs, password, &local_err);
4137 if (local_err) {
4138 monitor_printf(mon, "%s\n", error_get_pretty(local_err));
4139 error_free(local_err);
4140 ret = -EPERM;
4142 if (mon->password_completion_cb)
4143 mon->password_completion_cb(mon->password_opaque, ret);
4145 monitor_read_command(mon, 1);
4148 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4149 BlockCompletionFunc *completion_cb,
4150 void *opaque)
4152 int err;
4154 monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4155 bdrv_get_encrypted_filename(bs));
4157 mon->password_completion_cb = completion_cb;
4158 mon->password_opaque = opaque;
4160 err = monitor_read_password(mon, bdrv_password_cb, bs);
4162 if (err && completion_cb)
4163 completion_cb(opaque, err);
4165 return err;
4168 int monitor_read_block_device_key(Monitor *mon, const char *device,
4169 BlockCompletionFunc *completion_cb,
4170 void *opaque)
4172 Error *err = NULL;
4173 BlockBackend *blk;
4175 blk = blk_by_name(device);
4176 if (!blk) {
4177 monitor_printf(mon, "Device not found %s\n", device);
4178 return -1;
4180 if (!blk_bs(blk)) {
4181 monitor_printf(mon, "Device '%s' has no medium\n", device);
4182 return -1;
4185 bdrv_add_key(blk_bs(blk), NULL, &err);
4186 if (err) {
4187 error_free(err);
4188 return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque);
4191 if (completion_cb) {
4192 completion_cb(opaque, 0);
4194 return 0;
4197 QemuOptsList qemu_mon_opts = {
4198 .name = "mon",
4199 .implied_opt_name = "chardev",
4200 .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
4201 .desc = {
4203 .name = "mode",
4204 .type = QEMU_OPT_STRING,
4206 .name = "chardev",
4207 .type = QEMU_OPT_STRING,
4209 .name = "default",
4210 .type = QEMU_OPT_BOOL,
4212 .name = "pretty",
4213 .type = QEMU_OPT_BOOL,
4215 { /* end of list */ }
4219 #ifndef TARGET_I386
4220 void qmp_rtc_reset_reinjection(Error **errp)
4222 error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
4224 #endif
4226 #ifndef TARGET_S390X
4227 void qmp_dump_skeys(const char *filename, Error **errp)
4229 error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
4231 #endif