monitor.c

   1 /*
   2  * QEMU monitor
   3  *
   4  * Copyright (c) 2003-2004 Fabrice Bellard
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  22  * THE SOFTWARE.
  23  */
  24 #include <dirent.h>
  25 #include "hw/hw.h"
  26 #include "hw/qdev.h"
  27 #include "hw/usb.h"
  28 #include "hw/pcmcia.h"
  29 #include "hw/pc.h"
  30 #include "hw/pci.h"
  31 #include "hw/watchdog.h"
  32 #include "hw/loader.h"
  33 #include "gdbstub.h"
  34 #include "net.h"
  35 #include "net/slirp.h"
  36 #include "qemu-char.h"
  37 #include "sysemu.h"
  38 #include "monitor.h"
  39 #include "readline.h"
  40 #include "console.h"
  41 #include "blockdev.h"
  42 #include "audio/audio.h"
  43 #include "disas.h"
  44 #include "balloon.h"
  45 #include "qemu-timer.h"
  46 #include "migration.h"
  47 #include "kvm.h"
  48 #include "acl.h"
  49 #include "qint.h"
  50 #include "qfloat.h"
  51 #include "qlist.h"
  52 #include "qbool.h"
  53 #include "qstring.h"
  54 #include "qjson.h"
  55 #include "json-streamer.h"
  56 #include "json-parser.h"
  57 #include "osdep.h"
  58 #include "exec-all.h"
  59 #ifdef CONFIG_SIMPLE_TRACE
  60 #include "trace.h"
  61 #endif
  62
  63 //#define DEBUG
  64 //#define DEBUG_COMPLETION
  65
  66 /*
  67  * Supported types:
  68  *
  69  * 'F'          filename
  70  * 'B'          block device name
  71  * 's'          string (accept optional quote)
  72  * 'O'          option string of the form NAME=VALUE,...
  73  *              parsed according to QemuOptsList given by its name
  74  *              Example: 'device:O' uses qemu_device_opts.
  75  *              Restriction: only lists with empty desc are supported
  76  *              TODO lift the restriction
  77  * 'i'          32 bit integer
  78  * 'l'          target long (32 or 64 bit)
  79  * 'M'          just like 'l', except in user mode the value is
  80  *              multiplied by 2^20 (think Mebibyte)
  81  * 'f'          double
  82  *              user mode accepts an optional G, g, M, m, K, k suffix,
  83  *              which multiplies the value by 2^30 for suffixes G and
  84  *              g, 2^20 for M and m, 2^10 for K and k
  85  * 'T'          double
  86  *              user mode accepts an optional ms, us, ns suffix,
  87  *              which divides the value by 1e3, 1e6, 1e9, respectively
  88  * '/'          optional gdb-like print format (like "/10x")
  89  *
  90  * '?'          optional type (for all types, except '/')
  91  * '.'          other form of optional type (for 'i' and 'l')
  92  * 'b'          boolean
  93  *              user mode accepts "on" or "off"
  94  * '-'          optional parameter (eg. '-f')
  95  *
  96  */
  97
  98 typedef struct MonitorCompletionData MonitorCompletionData;
  99 struct MonitorCompletionData {
 100     Monitor *mon;
 101     void (*user_print)(Monitor *mon, const QObject *data);
 102 };
 103
 104 typedef struct mon_cmd_t {
 105     const char *name;
 106     const char *args_type;
 107     const char *params;
 108     const char *help;
 109     void (*user_print)(Monitor *mon, const QObject *data);
 110     union {
 111         void (*info)(Monitor *mon);
 112         void (*info_new)(Monitor *mon, QObject **ret_data);
 113         int  (*info_async)(Monitor *mon, MonitorCompletion *cb, void *opaque);
 114         void (*cmd)(Monitor *mon, const QDict *qdict);
 115         int  (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
 116         int  (*cmd_async)(Monitor *mon, const QDict *params,
 117                           MonitorCompletion *cb, void *opaque);
 118     } mhandler;
 119     int flags;
 120 } mon_cmd_t;
 121
 122 /* file descriptors passed via SCM_RIGHTS */
 123 typedef struct mon_fd_t mon_fd_t;
 124 struct mon_fd_t {
 125     char *name;
 126     int fd;
 127     QLIST_ENTRY(mon_fd_t) next;
 128 };
 129
 130 typedef struct MonitorControl {
 131     QObject *id;
 132     JSONMessageParser parser;
 133     int command_mode;
 134 } MonitorControl;
 135
 136 struct Monitor {
 137     CharDriverState *chr;
 138     int mux_out;
 139     int reset_seen;
 140     int flags;
 141     int suspend_cnt;
 142     uint8_t outbuf[1024];
 143     int outbuf_index;
 144     ReadLineState *rs;
 145     MonitorControl *mc;
 146     CPUState *mon_cpu;
 147     BlockDriverCompletionFunc *password_completion_cb;
 148     void *password_opaque;
 149 #ifdef CONFIG_DEBUG_MONITOR
 150     int print_calls_nr;
 151 #endif
 152     QError *error;
 153     QLIST_HEAD(,mon_fd_t) fds;
 154     QLIST_ENTRY(Monitor) entry;
 155 };
 156
 157 #ifdef CONFIG_DEBUG_MONITOR
 158 #define MON_DEBUG(fmt, ...) do {    \
 159     fprintf(stderr, "Monitor: ");       \
 160     fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
 161
 162 static inline void mon_print_count_inc(Monitor *mon)
 163 {
 164     mon->print_calls_nr++;
 165 }
 166
 167 static inline void mon_print_count_init(Monitor *mon)
 168 {
 169     mon->print_calls_nr = 0;
 170 }
 171
 172 static inline int mon_print_count_get(const Monitor *mon)
 173 {
 174     return mon->print_calls_nr;
 175 }
 176
 177 #else /* !CONFIG_DEBUG_MONITOR */
 178 #define MON_DEBUG(fmt, ...) do { } while (0)
 179 static inline void mon_print_count_inc(Monitor *mon) { }
 180 static inline void mon_print_count_init(Monitor *mon) { }
 181 static inline int mon_print_count_get(const Monitor *mon) { return 0; }
 182 #endif /* CONFIG_DEBUG_MONITOR */
 183
 184 /* QMP checker flags */
 185 #define QMP_ACCEPT_UNKNOWNS 1
 186
 187 static QLIST_HEAD(mon_list, Monitor) mon_list;
 188
 189 static const mon_cmd_t mon_cmds[];
 190 static const mon_cmd_t info_cmds[];
 191
 192 Monitor *cur_mon;
 193 Monitor *default_mon;
 194
 195 static void monitor_command_cb(Monitor *mon, const char *cmdline,
 196                                void *opaque);
 197
 198 static inline int qmp_cmd_mode(const Monitor *mon)
 199 {
 200     return (mon->mc ? mon->mc->command_mode : 0);
 201 }
 202
 203 /* Return true if in control mode, false otherwise */
 204 static inline int monitor_ctrl_mode(const Monitor *mon)
 205 {
 206     return (mon->flags & MONITOR_USE_CONTROL);
 207 }
 208
 209 /* Return non-zero iff we have a current monitor, and it is in QMP mode.  */
 210 int monitor_cur_is_qmp(void)
 211 {
 212     return cur_mon && monitor_ctrl_mode(cur_mon);
 213 }
 214
 215 static void monitor_read_command(Monitor *mon, int show_prompt)
 216 {
 217     if (!mon->rs)
 218         return;
 219
 220     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
 221     if (show_prompt)
 222         readline_show_prompt(mon->rs);
 223 }
 224
 225 static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
 226                                  void *opaque)
 227 {
 228     if (monitor_ctrl_mode(mon)) {
 229         qerror_report(QERR_MISSING_PARAMETER, "password");
 230         return -EINVAL;
 231     } else if (mon->rs) {
 232         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
 233         /* prompt is printed on return from the command handler */
 234         return 0;
 235     } else {
 236         monitor_printf(mon, "terminal does not support password prompting\n");
 237         return -ENOTTY;
 238     }
 239 }
 240
 241 void monitor_flush(Monitor *mon)
 242 {
 243     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
 244         qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
 245         mon->outbuf_index = 0;
 246     }
 247 }
 248
 249 /* flush at every end of line or if the buffer is full */
 250 static void monitor_puts(Monitor *mon, const char *str)
 251 {
 252     char c;
 253
 254     for(;;) {
 255         c = *str++;
 256         if (c == '\0')
 257             break;
 258         if (c == '\n')
 259             mon->outbuf[mon->outbuf_index++] = '\r';
 260         mon->outbuf[mon->outbuf_index++] = c;
 261         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
 262             || c == '\n')
 263             monitor_flush(mon);
 264     }
 265 }
 266
 267 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 268 {
 269     char buf[4096];
 270
 271     if (!mon)
 272         return;
 273
 274     mon_print_count_inc(mon);
 275
 276     if (monitor_ctrl_mode(mon)) {
 277         return;
 278     }
 279
 280     vsnprintf(buf, sizeof(buf), fmt, ap);
 281     monitor_puts(mon, buf);
 282 }
 283
 284 void monitor_printf(Monitor *mon, const char *fmt, ...)
 285 {
 286     va_list ap;
 287     va_start(ap, fmt);
 288     monitor_vprintf(mon, fmt, ap);
 289     va_end(ap);
 290 }
 291
 292 void monitor_print_filename(Monitor *mon, const char *filename)
 293 {
 294     int i;
 295
 296     for (i = 0; filename[i]; i++) {
 297         switch (filename[i]) {
 298         case ' ':
 299         case '"':
 300         case '\\':
 301             monitor_printf(mon, "\\%c", filename[i]);
 302             break;
 303         case '\t':
 304             monitor_printf(mon, "\\t");
 305             break;
 306         case '\r':
 307             monitor_printf(mon, "\\r");
 308             break;
 309         case '\n':
 310             monitor_printf(mon, "\\n");
 311             break;
 312         default:
 313             monitor_printf(mon, "%c", filename[i]);
 314             break;
 315         }
 316     }
 317 }
 318
 319 static int monitor_fprintf(FILE *stream, const char *fmt, ...)
 320 {
 321     va_list ap;
 322     va_start(ap, fmt);
 323     monitor_vprintf((Monitor *)stream, fmt, ap);
 324     va_end(ap);
 325     return 0;
 326 }
 327
 328 static void monitor_user_noop(Monitor *mon, const QObject *data) { }
 329
 330 static inline int monitor_handler_ported(const mon_cmd_t *cmd)
 331 {
 332     return cmd->user_print != NULL;
 333 }
 334
 335 static inline bool monitor_handler_is_async(const mon_cmd_t *cmd)
 336 {
 337     return cmd->flags & MONITOR_CMD_ASYNC;
 338 }
 339
 340 static inline bool monitor_cmd_user_only(const mon_cmd_t *cmd)
 341 {
 342     return (cmd->flags & MONITOR_CMD_USER_ONLY);
 343 }
 344
 345 static inline int monitor_has_error(const Monitor *mon)
 346 {
 347     return mon->error != NULL;
 348 }
 349
 350 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 351 {
 352     QString *json;
 353
 354     json = qobject_to_json(data);
 355     assert(json != NULL);
 356
 357     qstring_append_chr(json, '\n');
 358     monitor_puts(mon, qstring_get_str(json));
 359
 360     QDECREF(json);
 361 }
 362
 363 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 364 {
 365     QDict *qmp;
 366
 367     qmp = qdict_new();
 368
 369     if (!monitor_has_error(mon)) {
 370         /* success response */
 371         if (data) {
 372             qobject_incref(data);
 373             qdict_put_obj(qmp, "return", data);
 374         } else {
 375             /* return an empty QDict by default */
 376             qdict_put(qmp, "return", qdict_new());
 377         }
 378     } else {
 379         /* error response */
 380         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
 381         qdict_put(qmp, "error", mon->error->error);
 382         QINCREF(mon->error->error);
 383         QDECREF(mon->error);
 384         mon->error = NULL;
 385     }
 386
 387     if (mon->mc->id) {
 388         qdict_put_obj(qmp, "id", mon->mc->id);
 389         mon->mc->id = NULL;
 390     }
 391
 392     monitor_json_emitter(mon, QOBJECT(qmp));
 393     QDECREF(qmp);
 394 }
 395
 396 static void timestamp_put(QDict *qdict)
 397 {
 398     int err;
 399     QObject *obj;
 400     qemu_timeval tv;
 401
 402     err = qemu_gettimeofday(&tv);
 403     if (err < 0)
 404         return;
 405
 406     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
 407                                 "'microseconds': %" PRId64 " }",
 408                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
 409     qdict_put_obj(qdict, "timestamp", obj);
 410 }
 411
 412 /**
 413  * monitor_protocol_event(): Generate a Monitor event
 414  *
 415  * Event-specific data can be emitted through the (optional) 'data' parameter.
 416  */
 417 void monitor_protocol_event(MonitorEvent event, QObject *data)
 418 {
 419     QDict *qmp;
 420     const char *event_name;
 421     Monitor *mon;
 422
 423     assert(event < QEVENT_MAX);
 424
 425     switch (event) {
 426         case QEVENT_SHUTDOWN:
 427             event_name = "SHUTDOWN";
 428             break;
 429         case QEVENT_RESET:
 430             event_name = "RESET";
 431             break;
 432         case QEVENT_POWERDOWN:
 433             event_name = "POWERDOWN";
 434             break;
 435         case QEVENT_STOP:
 436             event_name = "STOP";
 437             break;
 438         case QEVENT_RESUME:
 439             event_name = "RESUME";
 440             break;
 441         case QEVENT_VNC_CONNECTED:
 442             event_name = "VNC_CONNECTED";
 443             break;
 444         case QEVENT_VNC_INITIALIZED:
 445             event_name = "VNC_INITIALIZED";
 446             break;
 447         case QEVENT_VNC_DISCONNECTED:
 448             event_name = "VNC_DISCONNECTED";
 449             break;
 450         case QEVENT_BLOCK_IO_ERROR:
 451             event_name = "BLOCK_IO_ERROR";
 452             break;
 453         case QEVENT_RTC_CHANGE:
 454             event_name = "RTC_CHANGE";
 455             break;
 456         case QEVENT_WATCHDOG:
 457             event_name = "WATCHDOG";
 458             break;
 459         default:
 460             abort();
 461             break;
 462     }
 463
 464     qmp = qdict_new();
 465     timestamp_put(qmp);
 466     qdict_put(qmp, "event", qstring_from_str(event_name));
 467     if (data) {
 468         qobject_incref(data);
 469         qdict_put_obj(qmp, "data", data);
 470     }
 471
 472     QLIST_FOREACH(mon, &mon_list, entry) {
 473         if (monitor_ctrl_mode(mon) && qmp_cmd_mode(mon)) {
 474             monitor_json_emitter(mon, QOBJECT(qmp));
 475         }
 476     }
 477     QDECREF(qmp);
 478 }
 479
 480 static int do_qmp_capabilities(Monitor *mon, const QDict *params,
 481                                QObject **ret_data)
 482 {
 483     /* Will setup QMP capabilities in the future */
 484     if (monitor_ctrl_mode(mon)) {
 485         mon->mc->command_mode = 1;
 486     }
 487
 488     return 0;
 489 }
 490
 491 static int compare_cmd(const char *name, const char *list)
 492 {
 493     const char *p, *pstart;
 494     int len;
 495     len = strlen(name);
 496     p = list;
 497     for(;;) {
 498         pstart = p;
 499         p = strchr(p, '|');
 500         if (!p)
 501             p = pstart + strlen(pstart);
 502         if ((p - pstart) == len && !memcmp(pstart, name, len))
 503             return 1;
 504         if (*p == '\0')
 505             break;
 506         p++;
 507     }
 508     return 0;
 509 }
 510
 511 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
 512                           const char *prefix, const char *name)
 513 {
 514     const mon_cmd_t *cmd;
 515
 516     for(cmd = cmds; cmd->name != NULL; cmd++) {
 517         if (!name || !strcmp(name, cmd->name))
 518             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
 519                            cmd->params, cmd->help);
 520     }
 521 }
 522
 523 static void help_cmd(Monitor *mon, const char *name)
 524 {
 525     if (name && !strcmp(name, "info")) {
 526         help_cmd_dump(mon, info_cmds, "info ", NULL);
 527     } else {
 528         help_cmd_dump(mon, mon_cmds, "", name);
 529         if (name && !strcmp(name, "log")) {
 530             const CPULogItem *item;
 531             monitor_printf(mon, "Log items (comma separated):\n");
 532             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
 533             for(item = cpu_log_items; item->mask != 0; item++) {
 534                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
 535             }
 536         }
 537     }
 538 }
 539
 540 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 541 {
 542     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 543 }
 544
 545 #ifdef CONFIG_SIMPLE_TRACE
 546 static void do_change_trace_event_state(Monitor *mon, const QDict *qdict)
 547 {
 548     const char *tp_name = qdict_get_str(qdict, "name");
 549     bool new_state = qdict_get_bool(qdict, "option");
 550     st_change_trace_event_state(tp_name, new_state);
 551 }
 552 #endif
 553
 554 static void user_monitor_complete(void *opaque, QObject *ret_data)
 555 {
 556     MonitorCompletionData *data = (MonitorCompletionData *)opaque;
 557
 558     if (ret_data) {
 559         data->user_print(data->mon, ret_data);
 560     }
 561     monitor_resume(data->mon);
 562     qemu_free(data);
 563 }
 564
 565 static void qmp_monitor_complete(void *opaque, QObject *ret_data)
 566 {
 567     monitor_protocol_emitter(opaque, ret_data);
 568 }
 569
 570 static int qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 571                                  const QDict *params)
 572 {
 573     return cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
 574 }
 575
 576 static void qmp_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 577 {
 578     cmd->mhandler.info_async(mon, qmp_monitor_complete, mon);
 579 }
 580
 581 static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 582                                    const QDict *params)
 583 {
 584     int ret;
 585
 586     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 587     cb_data->mon = mon;
 588     cb_data->user_print = cmd->user_print;
 589     monitor_suspend(mon);
 590     ret = cmd->mhandler.cmd_async(mon, params,
 591                                   user_monitor_complete, cb_data);
 592     if (ret < 0) {
 593         monitor_resume(mon);
 594         qemu_free(cb_data);
 595     }
 596 }
 597
 598 static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 599 {
 600     int ret;
 601
 602     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 603     cb_data->mon = mon;
 604     cb_data->user_print = cmd->user_print;
 605     monitor_suspend(mon);
 606     ret = cmd->mhandler.info_async(mon, user_monitor_complete, cb_data);
 607     if (ret < 0) {
 608         monitor_resume(mon);
 609         qemu_free(cb_data);
 610     }
 611 }
 612
 613 static int do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
 614 {
 615     const mon_cmd_t *cmd;
 616     const char *item = qdict_get_try_str(qdict, "item");
 617
 618     if (!item) {
 619         assert(monitor_ctrl_mode(mon) == 0);
 620         goto help;
 621     }
 622
 623     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 624         if (compare_cmd(item, cmd->name))
 625             break;
 626     }
 627
 628     if (cmd->name == NULL) {
 629         if (monitor_ctrl_mode(mon)) {
 630             qerror_report(QERR_COMMAND_NOT_FOUND, item);
 631             return -1;
 632         }
 633         goto help;
 634     }
 635
 636     if (monitor_ctrl_mode(mon) && monitor_cmd_user_only(cmd)) {
 637         qerror_report(QERR_COMMAND_NOT_FOUND, item);
 638         return -1;
 639     }
 640
 641     if (monitor_handler_is_async(cmd)) {
 642         if (monitor_ctrl_mode(mon)) {
 643             qmp_async_info_handler(mon, cmd);
 644         } else {
 645             user_async_info_handler(mon, cmd);
 646         }
 647         /*
 648          * Indicate that this command is asynchronous and will not return any
 649          * data (not even empty).  Instead, the data will be returned via a
 650          * completion callback.
 651          */
 652         *ret_data = qobject_from_jsonf("{ '__mon_async': 'return' }");
 653     } else if (monitor_handler_ported(cmd)) {
 654         cmd->mhandler.info_new(mon, ret_data);
 655
 656         if (!monitor_ctrl_mode(mon)) {
 657             /*
 658              * User Protocol function is called here, Monitor Protocol is
 659              * handled by monitor_call_handler()
 660              */
 661             if (*ret_data)
 662                 cmd->user_print(mon, *ret_data);
 663         }
 664     } else {
 665         if (monitor_ctrl_mode(mon)) {
 666             /* handler not converted yet */
 667             qerror_report(QERR_COMMAND_NOT_FOUND, item);
 668             return -1;
 669         } else {
 670             cmd->mhandler.info(mon);
 671         }
 672     }
 673
 674     return 0;
 675
 676 help:
 677     help_cmd(mon, "info");
 678     return 0;
 679 }
 680
 681 static void do_info_version_print(Monitor *mon, const QObject *data)
 682 {
 683     QDict *qdict;
 684     QDict *qemu;
 685
 686     qdict = qobject_to_qdict(data);
 687     qemu = qdict_get_qdict(qdict, "qemu");
 688
 689     monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
 690                   qdict_get_int(qemu, "major"),
 691                   qdict_get_int(qemu, "minor"),
 692                   qdict_get_int(qemu, "micro"),
 693                   qdict_get_str(qdict, "package"));
 694 }
 695
 696 static void do_info_version(Monitor *mon, QObject **ret_data)
 697 {
 698     const char *version = QEMU_VERSION;
 699     int major = 0, minor = 0, micro = 0;
 700     char *tmp;
 701
 702     major = strtol(version, &tmp, 10);
 703     tmp++;
 704     minor = strtol(tmp, &tmp, 10);
 705     tmp++;
 706     micro = strtol(tmp, &tmp, 10);
 707
 708     *ret_data = qobject_from_jsonf("{ 'qemu': { 'major': %d, 'minor': %d, \
 709         'micro': %d }, 'package': %s }", major, minor, micro, QEMU_PKGVERSION);
 710 }
 711
 712 static void do_info_name_print(Monitor *mon, const QObject *data)
 713 {
 714     QDict *qdict;
 715
 716     qdict = qobject_to_qdict(data);
 717     if (qdict_size(qdict) == 0) {
 718         return;
 719     }
 720
 721     monitor_printf(mon, "%s\n", qdict_get_str(qdict, "name"));
 722 }
 723
 724 static void do_info_name(Monitor *mon, QObject **ret_data)
 725 {
 726     *ret_data = qemu_name ? qobject_from_jsonf("{'name': %s }", qemu_name) :
 727                             qobject_from_jsonf("{}");
 728 }
 729
 730 static QObject *get_cmd_dict(const char *name)
 731 {
 732     const char *p;
 733
 734     /* Remove '|' from some commands */
 735     p = strchr(name, '|');
 736     if (p) {
 737         p++;
 738     } else {
 739         p = name;
 740     }
 741
 742     return qobject_from_jsonf("{ 'name': %s }", p);
 743 }
 744
 745 static void do_info_commands(Monitor *mon, QObject **ret_data)
 746 {
 747     QList *cmd_list;
 748     const mon_cmd_t *cmd;
 749
 750     cmd_list = qlist_new();
 751
 752     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
 753         if (monitor_handler_ported(cmd) && !monitor_cmd_user_only(cmd) &&
 754             !compare_cmd(cmd->name, "info")) {
 755             qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
 756         }
 757     }
 758
 759     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 760         if (monitor_handler_ported(cmd) && !monitor_cmd_user_only(cmd)) {
 761             char buf[128];
 762             snprintf(buf, sizeof(buf), "query-%s", cmd->name);
 763             qlist_append_obj(cmd_list, get_cmd_dict(buf));
 764         }
 765     }
 766
 767     *ret_data = QOBJECT(cmd_list);
 768 }
 769
 770 static void do_info_uuid_print(Monitor *mon, const QObject *data)
 771 {
 772     monitor_printf(mon, "%s\n", qdict_get_str(qobject_to_qdict(data), "UUID"));
 773 }
 774
 775 static void do_info_uuid(Monitor *mon, QObject **ret_data)
 776 {
 777     char uuid[64];
 778
 779     snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
 780                    qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
 781                    qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
 782                    qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
 783                    qemu_uuid[14], qemu_uuid[15]);
 784     *ret_data = qobject_from_jsonf("{ 'UUID': %s }", uuid);
 785 }
 786
 787 /* get the current CPU defined by the user */
 788 static int mon_set_cpu(int cpu_index)
 789 {
 790     CPUState *env;
 791
 792     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 793         if (env->cpu_index == cpu_index) {
 794             cur_mon->mon_cpu = env;
 795             return 0;
 796         }
 797     }
 798     return -1;
 799 }
 800
 801 static CPUState *mon_get_cpu(void)
 802 {
 803     if (!cur_mon->mon_cpu) {
 804         mon_set_cpu(0);
 805     }
 806     cpu_synchronize_state(cur_mon->mon_cpu);
 807     return cur_mon->mon_cpu;
 808 }
 809
 810 static void do_info_registers(Monitor *mon)
 811 {
 812     CPUState *env;
 813     env = mon_get_cpu();
 814 #ifdef TARGET_I386
 815     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 816                    X86_DUMP_FPU);
 817 #else
 818     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 819                    0);
 820 #endif
 821 }
 822
 823 static void print_cpu_iter(QObject *obj, void *opaque)
 824 {
 825     QDict *cpu;
 826     int active = ' ';
 827     Monitor *mon = opaque;
 828
 829     assert(qobject_type(obj) == QTYPE_QDICT);
 830     cpu = qobject_to_qdict(obj);
 831
 832     if (qdict_get_bool(cpu, "current")) {
 833         active = '*';
 834     }
 835
 836     monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
 837
 838 #if defined(TARGET_I386)
 839     monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
 840                    (target_ulong) qdict_get_int(cpu, "pc"));
 841 #elif defined(TARGET_PPC)
 842     monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
 843                    (target_long) qdict_get_int(cpu, "nip"));
 844 #elif defined(TARGET_SPARC)
 845     monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
 846                    (target_long) qdict_get_int(cpu, "pc"));
 847     monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
 848                    (target_long) qdict_get_int(cpu, "npc"));
 849 #elif defined(TARGET_MIPS)
 850     monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
 851                    (target_long) qdict_get_int(cpu, "PC"));
 852 #endif
 853
 854     if (qdict_get_bool(cpu, "halted")) {
 855         monitor_printf(mon, " (halted)");
 856     }
 857
 858     monitor_printf(mon, "\n");
 859 }
 860
 861 static void monitor_print_cpus(Monitor *mon, const QObject *data)
 862 {
 863     QList *cpu_list;
 864
 865     assert(qobject_type(data) == QTYPE_QLIST);
 866     cpu_list = qobject_to_qlist(data);
 867     qlist_iter(cpu_list, print_cpu_iter, mon);
 868 }
 869
 870 static void do_info_cpus(Monitor *mon, QObject **ret_data)
 871 {
 872     CPUState *env;
 873     QList *cpu_list;
 874
 875     cpu_list = qlist_new();
 876
 877     /* just to set the default cpu if not already done */
 878     mon_get_cpu();
 879
 880     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 881         QDict *cpu;
 882         QObject *obj;
 883
 884         cpu_synchronize_state(env);
 885
 886         obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
 887                                  env->cpu_index, env == mon->mon_cpu,
 888                                  env->halted);
 889
 890         cpu = qobject_to_qdict(obj);
 891
 892 #if defined(TARGET_I386)
 893         qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
 894 #elif defined(TARGET_PPC)
 895         qdict_put(cpu, "nip", qint_from_int(env->nip));
 896 #elif defined(TARGET_SPARC)
 897         qdict_put(cpu, "pc", qint_from_int(env->pc));
 898         qdict_put(cpu, "npc", qint_from_int(env->npc));
 899 #elif defined(TARGET_MIPS)
 900         qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
 901 #endif
 902
 903         qlist_append(cpu_list, cpu);
 904     }
 905
 906     *ret_data = QOBJECT(cpu_list);
 907 }
 908
 909 static int do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
 910 {
 911     int index = qdict_get_int(qdict, "index");
 912     if (mon_set_cpu(index) < 0) {
 913         qerror_report(QERR_INVALID_PARAMETER_VALUE, "index",
 914                       "a CPU number");
 915         return -1;
 916     }
 917     return 0;
 918 }
 919
 920 static void do_info_jit(Monitor *mon)
 921 {
 922     dump_exec_info((FILE *)mon, monitor_fprintf);
 923 }
 924
 925 static void do_info_history(Monitor *mon)
 926 {
 927     int i;
 928     const char *str;
 929
 930     if (!mon->rs)
 931         return;
 932     i = 0;
 933     for(;;) {
 934         str = readline_get_history(mon->rs, i);
 935         if (!str)
 936             break;
 937         monitor_printf(mon, "%d: '%s'\n", i, str);
 938         i++;
 939     }
 940 }
 941
 942 #if defined(TARGET_PPC)
 943 /* XXX: not implemented in other targets */
 944 static void do_info_cpu_stats(Monitor *mon)
 945 {
 946     CPUState *env;
 947
 948     env = mon_get_cpu();
 949     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 950 }
 951 #endif
 952
 953 #if defined(CONFIG_SIMPLE_TRACE)
 954 static void do_info_trace(Monitor *mon)
 955 {
 956     st_print_trace((FILE *)mon, &monitor_fprintf);
 957 }
 958
 959 static void do_info_trace_events(Monitor *mon)
 960 {
 961     st_print_trace_events((FILE *)mon, &monitor_fprintf);
 962 }
 963 #endif
 964
 965 /**
 966  * do_quit(): Quit QEMU execution
 967  */
 968 static int do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
 969 {
 970     monitor_suspend(mon);
 971     no_shutdown = 0;
 972     qemu_system_shutdown_request();
 973
 974     return 0;
 975 }
 976
 977 static int change_vnc_password(const char *password)
 978 {
 979     if (vnc_display_password(NULL, password) < 0) {
 980         qerror_report(QERR_SET_PASSWD_FAILED);
 981         return -1;
 982     }
 983
 984     return 0;
 985 }
 986
 987 static void change_vnc_password_cb(Monitor *mon, const char *password,
 988                                    void *opaque)
 989 {
 990     change_vnc_password(password);
 991     monitor_read_command(mon, 1);
 992 }
 993
 994 static int do_change_vnc(Monitor *mon, const char *target, const char *arg)
 995 {
 996     if (strcmp(target, "passwd") == 0 ||
 997         strcmp(target, "password") == 0) {
 998         if (arg) {
 999             char password[9];
1000             strncpy(password, arg, sizeof(password));
1001             password[sizeof(password) - 1] = '\0';
1002             return change_vnc_password(password);
1003         } else {
1004             return monitor_read_password(mon, change_vnc_password_cb, NULL);
1005         }
1006     } else {
1007         if (vnc_display_open(NULL, target) < 0) {
1008             qerror_report(QERR_VNC_SERVER_FAILED, target);
1009             return -1;
1010         }
1011     }
1012
1013     return 0;
1014 }
1015
1016 /**
1017  * do_change(): Change a removable medium, or VNC configuration
1018  */
1019 static int do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
1020 {
1021     const char *device = qdict_get_str(qdict, "device");
1022     const char *target = qdict_get_str(qdict, "target");
1023     const char *arg = qdict_get_try_str(qdict, "arg");
1024     int ret;
1025
1026     if (strcmp(device, "vnc") == 0) {
1027         ret = do_change_vnc(mon, target, arg);
1028     } else {
1029         ret = do_change_block(mon, device, target, arg);
1030     }
1031
1032     return ret;
1033 }
1034
1035 static int do_screen_dump(Monitor *mon, const QDict *qdict, QObject **ret_data)
1036 {
1037     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
1038     return 0;
1039 }
1040
1041 static void do_logfile(Monitor *mon, const QDict *qdict)
1042 {
1043     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
1044 }
1045
1046 static void do_log(Monitor *mon, const QDict *qdict)
1047 {
1048     int mask;
1049     const char *items = qdict_get_str(qdict, "items");
1050
1051     if (!strcmp(items, "none")) {
1052         mask = 0;
1053     } else {
1054         mask = cpu_str_to_log_mask(items);
1055         if (!mask) {
1056             help_cmd(mon, "log");
1057             return;
1058         }
1059     }
1060     cpu_set_log(mask);
1061 }
1062
1063 static void do_singlestep(Monitor *mon, const QDict *qdict)
1064 {
1065     const char *option = qdict_get_try_str(qdict, "option");
1066     if (!option || !strcmp(option, "on")) {
1067         singlestep = 1;
1068     } else if (!strcmp(option, "off")) {
1069         singlestep = 0;
1070     } else {
1071         monitor_printf(mon, "unexpected option %s\n", option);
1072     }
1073 }
1074
1075 /**
1076  * do_stop(): Stop VM execution
1077  */
1078 static int do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
1079 {
1080     vm_stop(EXCP_INTERRUPT);
1081     return 0;
1082 }
1083
1084 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
1085
1086 struct bdrv_iterate_context {
1087     Monitor *mon;
1088     int err;
1089 };
1090
1091 /**
1092  * do_cont(): Resume emulation.
1093  */
1094 static int do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
1095 {
1096     struct bdrv_iterate_context context = { mon, 0 };
1097
1098     if (incoming_expected) {
1099         qerror_report(QERR_MIGRATION_EXPECTED);
1100         return -1;
1101     }
1102     bdrv_iterate(encrypted_bdrv_it, &context);
1103     /* only resume the vm if all keys are set and valid */
1104     if (!context.err) {
1105         vm_start();
1106         return 0;
1107     } else {
1108         return -1;
1109     }
1110 }
1111
1112 static void bdrv_key_cb(void *opaque, int err)
1113 {
1114     Monitor *mon = opaque;
1115
1116     /* another key was set successfully, retry to continue */
1117     if (!err)
1118         do_cont(mon, NULL, NULL);
1119 }
1120
1121 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
1122 {
1123     struct bdrv_iterate_context *context = opaque;
1124
1125     if (!context->err && bdrv_key_required(bs)) {
1126         context->err = -EBUSY;
1127         monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
1128                                     context->mon);
1129     }
1130 }
1131
1132 static void do_gdbserver(Monitor *mon, const QDict *qdict)
1133 {
1134     const char *device = qdict_get_try_str(qdict, "device");
1135     if (!device)
1136         device = "tcp::" DEFAULT_GDBSTUB_PORT;
1137     if (gdbserver_start(device) < 0) {
1138         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1139                        device);
1140     } else if (strcmp(device, "none") == 0) {
1141         monitor_printf(mon, "Disabled gdbserver\n");
1142     } else {
1143         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1144                        device);
1145     }
1146 }
1147
1148 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1149 {
1150     const char *action = qdict_get_str(qdict, "action");
1151     if (select_watchdog_action(action) == -1) {
1152         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1153     }
1154 }
1155
1156 static void monitor_printc(Monitor *mon, int c)
1157 {
1158     monitor_printf(mon, "'");
1159     switch(c) {
1160     case '\'':
1161         monitor_printf(mon, "\\'");
1162         break;
1163     case '\\':
1164         monitor_printf(mon, "\\\\");
1165         break;
1166     case '\n':
1167         monitor_printf(mon, "\\n");
1168         break;
1169     case '\r':
1170         monitor_printf(mon, "\\r");
1171         break;
1172     default:
1173         if (c >= 32 && c <= 126) {
1174             monitor_printf(mon, "%c", c);
1175         } else {
1176             monitor_printf(mon, "\\x%02x", c);
1177         }
1178         break;
1179     }
1180     monitor_printf(mon, "'");
1181 }
1182
1183 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1184                         target_phys_addr_t addr, int is_physical)
1185 {
1186     CPUState *env;
1187     int l, line_size, i, max_digits, len;
1188     uint8_t buf[16];
1189     uint64_t v;
1190
1191     if (format == 'i') {
1192         int flags;
1193         flags = 0;
1194         env = mon_get_cpu();
1195 #ifdef TARGET_I386
1196         if (wsize == 2) {
1197             flags = 1;
1198         } else if (wsize == 4) {
1199             flags = 0;
1200         } else {
1201             /* as default we use the current CS size */
1202             flags = 0;
1203             if (env) {
1204 #ifdef TARGET_X86_64
1205                 if ((env->efer & MSR_EFER_LMA) &&
1206                     (env->segs[R_CS].flags & DESC_L_MASK))
1207                     flags = 2;
1208                 else
1209 #endif
1210                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1211                     flags = 1;
1212             }
1213         }
1214 #endif
1215         monitor_disas(mon, env, addr, count, is_physical, flags);
1216         return;
1217     }
1218
1219     len = wsize * count;
1220     if (wsize == 1)
1221         line_size = 8;
1222     else
1223         line_size = 16;
1224     max_digits = 0;
1225
1226     switch(format) {
1227     case 'o':
1228         max_digits = (wsize * 8 + 2) / 3;
1229         break;
1230     default:
1231     case 'x':
1232         max_digits = (wsize * 8) / 4;
1233         break;
1234     case 'u':
1235     case 'd':
1236         max_digits = (wsize * 8 * 10 + 32) / 33;
1237         break;
1238     case 'c':
1239         wsize = 1;
1240         break;
1241     }
1242
1243     while (len > 0) {
1244         if (is_physical)
1245             monitor_printf(mon, TARGET_FMT_plx ":", addr);
1246         else
1247             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1248         l = len;
1249         if (l > line_size)
1250             l = line_size;
1251         if (is_physical) {
1252             cpu_physical_memory_rw(addr, buf, l, 0);
1253         } else {
1254             env = mon_get_cpu();
1255             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1256                 monitor_printf(mon, " Cannot access memory\n");
1257                 break;
1258             }
1259         }
1260         i = 0;
1261         while (i < l) {
1262             switch(wsize) {
1263             default:
1264             case 1:
1265                 v = ldub_raw(buf + i);
1266                 break;
1267             case 2:
1268                 v = lduw_raw(buf + i);
1269                 break;
1270             case 4:
1271                 v = (uint32_t)ldl_raw(buf + i);
1272                 break;
1273             case 8:
1274                 v = ldq_raw(buf + i);
1275                 break;
1276             }
1277             monitor_printf(mon, " ");
1278             switch(format) {
1279             case 'o':
1280                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1281                 break;
1282             case 'x':
1283                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1284                 break;
1285             case 'u':
1286                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1287                 break;
1288             case 'd':
1289                 monitor_printf(mon, "%*" PRId64, max_digits, v);
1290                 break;
1291             case 'c':
1292                 monitor_printc(mon, v);
1293                 break;
1294             }
1295             i += wsize;
1296         }
1297         monitor_printf(mon, "\n");
1298         addr += l;
1299         len -= l;
1300     }
1301 }
1302
1303 static void do_memory_dump(Monitor *mon, const QDict *qdict)
1304 {
1305     int count = qdict_get_int(qdict, "count");
1306     int format = qdict_get_int(qdict, "format");
1307     int size = qdict_get_int(qdict, "size");
1308     target_long addr = qdict_get_int(qdict, "addr");
1309
1310     memory_dump(mon, count, format, size, addr, 0);
1311 }
1312
1313 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1314 {
1315     int count = qdict_get_int(qdict, "count");
1316     int format = qdict_get_int(qdict, "format");
1317     int size = qdict_get_int(qdict, "size");
1318     target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1319
1320     memory_dump(mon, count, format, size, addr, 1);
1321 }
1322
1323 static void do_print(Monitor *mon, const QDict *qdict)
1324 {
1325     int format = qdict_get_int(qdict, "format");
1326     target_phys_addr_t val = qdict_get_int(qdict, "val");
1327
1328 #if TARGET_PHYS_ADDR_BITS == 32
1329     switch(format) {
1330     case 'o':
1331         monitor_printf(mon, "%#o", val);
1332         break;
1333     case 'x':
1334         monitor_printf(mon, "%#x", val);
1335         break;
1336     case 'u':
1337         monitor_printf(mon, "%u", val);
1338         break;
1339     default:
1340     case 'd':
1341         monitor_printf(mon, "%d", val);
1342         break;
1343     case 'c':
1344         monitor_printc(mon, val);
1345         break;
1346     }
1347 #else
1348     switch(format) {
1349     case 'o':
1350         monitor_printf(mon, "%#" PRIo64, val);
1351         break;
1352     case 'x':
1353         monitor_printf(mon, "%#" PRIx64, val);
1354         break;
1355     case 'u':
1356         monitor_printf(mon, "%" PRIu64, val);
1357         break;
1358     default:
1359     case 'd':
1360         monitor_printf(mon, "%" PRId64, val);
1361         break;
1362     case 'c':
1363         monitor_printc(mon, val);
1364         break;
1365     }
1366 #endif
1367     monitor_printf(mon, "\n");
1368 }
1369
1370 static int do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1371 {
1372     FILE *f;
1373     uint32_t size = qdict_get_int(qdict, "size");
1374     const char *filename = qdict_get_str(qdict, "filename");
1375     target_long addr = qdict_get_int(qdict, "val");
1376     uint32_t l;
1377     CPUState *env;
1378     uint8_t buf[1024];
1379     int ret = -1;
1380
1381     env = mon_get_cpu();
1382
1383     f = fopen(filename, "wb");
1384     if (!f) {
1385         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1386         return -1;
1387     }
1388     while (size != 0) {
1389         l = sizeof(buf);
1390         if (l > size)
1391             l = size;
1392         cpu_memory_rw_debug(env, addr, buf, l, 0);
1393         if (fwrite(buf, 1, l, f) != l) {
1394             monitor_printf(mon, "fwrite() error in do_memory_save\n");
1395             goto exit;
1396         }
1397         addr += l;
1398         size -= l;
1399     }
1400
1401     ret = 0;
1402
1403 exit:
1404     fclose(f);
1405     return ret;
1406 }
1407
1408 static int do_physical_memory_save(Monitor *mon, const QDict *qdict,
1409                                     QObject **ret_data)
1410 {
1411     FILE *f;
1412     uint32_t l;
1413     uint8_t buf[1024];
1414     uint32_t size = qdict_get_int(qdict, "size");
1415     const char *filename = qdict_get_str(qdict, "filename");
1416     target_phys_addr_t addr = qdict_get_int(qdict, "val");
1417     int ret = -1;
1418
1419     f = fopen(filename, "wb");
1420     if (!f) {
1421         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1422         return -1;
1423     }
1424     while (size != 0) {
1425         l = sizeof(buf);
1426         if (l > size)
1427             l = size;
1428         cpu_physical_memory_rw(addr, buf, l, 0);
1429         if (fwrite(buf, 1, l, f) != l) {
1430             monitor_printf(mon, "fwrite() error in do_physical_memory_save\n");
1431             goto exit;
1432         }
1433         fflush(f);
1434         addr += l;
1435         size -= l;
1436     }
1437
1438     ret = 0;
1439
1440 exit:
1441     fclose(f);
1442     return ret;
1443 }
1444
1445 static void do_sum(Monitor *mon, const QDict *qdict)
1446 {
1447     uint32_t addr;
1448     uint8_t buf[1];
1449     uint16_t sum;
1450     uint32_t start = qdict_get_int(qdict, "start");
1451     uint32_t size = qdict_get_int(qdict, "size");
1452
1453     sum = 0;
1454     for(addr = start; addr < (start + size); addr++) {
1455         cpu_physical_memory_rw(addr, buf, 1, 0);
1456         /* BSD sum algorithm ('sum' Unix command) */
1457         sum = (sum >> 1) | (sum << 15);
1458         sum += buf[0];
1459     }
1460     monitor_printf(mon, "%05d\n", sum);
1461 }
1462
1463 typedef struct {
1464     int keycode;
1465     const char *name;
1466 } KeyDef;
1467
1468 static const KeyDef key_defs[] = {
1469     { 0x2a, "shift" },
1470     { 0x36, "shift_r" },
1471
1472     { 0x38, "alt" },
1473     { 0xb8, "alt_r" },
1474     { 0x64, "altgr" },
1475     { 0xe4, "altgr_r" },
1476     { 0x1d, "ctrl" },
1477     { 0x9d, "ctrl_r" },
1478
1479     { 0xdd, "menu" },
1480
1481     { 0x01, "esc" },
1482
1483     { 0x02, "1" },
1484     { 0x03, "2" },
1485     { 0x04, "3" },
1486     { 0x05, "4" },
1487     { 0x06, "5" },
1488     { 0x07, "6" },
1489     { 0x08, "7" },
1490     { 0x09, "8" },
1491     { 0x0a, "9" },
1492     { 0x0b, "0" },
1493     { 0x0c, "minus" },
1494     { 0x0d, "equal" },
1495     { 0x0e, "backspace" },
1496
1497     { 0x0f, "tab" },
1498     { 0x10, "q" },
1499     { 0x11, "w" },
1500     { 0x12, "e" },
1501     { 0x13, "r" },
1502     { 0x14, "t" },
1503     { 0x15, "y" },
1504     { 0x16, "u" },
1505     { 0x17, "i" },
1506     { 0x18, "o" },
1507     { 0x19, "p" },
1508     { 0x1a, "bracket_left" },
1509     { 0x1b, "bracket_right" },
1510     { 0x1c, "ret" },
1511
1512     { 0x1e, "a" },
1513     { 0x1f, "s" },
1514     { 0x20, "d" },
1515     { 0x21, "f" },
1516     { 0x22, "g" },
1517     { 0x23, "h" },
1518     { 0x24, "j" },
1519     { 0x25, "k" },
1520     { 0x26, "l" },
1521     { 0x27, "semicolon" },
1522     { 0x28, "apostrophe" },
1523     { 0x29, "grave_accent" },
1524
1525     { 0x2b, "backslash" },
1526     { 0x2c, "z" },
1527     { 0x2d, "x" },
1528     { 0x2e, "c" },
1529     { 0x2f, "v" },
1530     { 0x30, "b" },
1531     { 0x31, "n" },
1532     { 0x32, "m" },
1533     { 0x33, "comma" },
1534     { 0x34, "dot" },
1535     { 0x35, "slash" },
1536
1537     { 0x37, "asterisk" },
1538
1539     { 0x39, "spc" },
1540     { 0x3a, "caps_lock" },
1541     { 0x3b, "f1" },
1542     { 0x3c, "f2" },
1543     { 0x3d, "f3" },
1544     { 0x3e, "f4" },
1545     { 0x3f, "f5" },
1546     { 0x40, "f6" },
1547     { 0x41, "f7" },
1548     { 0x42, "f8" },
1549     { 0x43, "f9" },
1550     { 0x44, "f10" },
1551     { 0x45, "num_lock" },
1552     { 0x46, "scroll_lock" },
1553
1554     { 0xb5, "kp_divide" },
1555     { 0x37, "kp_multiply" },
1556     { 0x4a, "kp_subtract" },
1557     { 0x4e, "kp_add" },
1558     { 0x9c, "kp_enter" },
1559     { 0x53, "kp_decimal" },
1560     { 0x54, "sysrq" },
1561
1562     { 0x52, "kp_0" },
1563     { 0x4f, "kp_1" },
1564     { 0x50, "kp_2" },
1565     { 0x51, "kp_3" },
1566     { 0x4b, "kp_4" },
1567     { 0x4c, "kp_5" },
1568     { 0x4d, "kp_6" },
1569     { 0x47, "kp_7" },
1570     { 0x48, "kp_8" },
1571     { 0x49, "kp_9" },
1572
1573     { 0x56, "<" },
1574
1575     { 0x57, "f11" },
1576     { 0x58, "f12" },
1577
1578     { 0xb7, "print" },
1579
1580     { 0xc7, "home" },
1581     { 0xc9, "pgup" },
1582     { 0xd1, "pgdn" },
1583     { 0xcf, "end" },
1584
1585     { 0xcb, "left" },
1586     { 0xc8, "up" },
1587     { 0xd0, "down" },
1588     { 0xcd, "right" },
1589
1590     { 0xd2, "insert" },
1591     { 0xd3, "delete" },
1592 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1593     { 0xf0, "stop" },
1594     { 0xf1, "again" },
1595     { 0xf2, "props" },
1596     { 0xf3, "undo" },
1597     { 0xf4, "front" },
1598     { 0xf5, "copy" },
1599     { 0xf6, "open" },
1600     { 0xf7, "paste" },
1601     { 0xf8, "find" },
1602     { 0xf9, "cut" },
1603     { 0xfa, "lf" },
1604     { 0xfb, "help" },
1605     { 0xfc, "meta_l" },
1606     { 0xfd, "meta_r" },
1607     { 0xfe, "compose" },
1608 #endif
1609     { 0, NULL },
1610 };
1611
1612 static int get_keycode(const char *key)
1613 {
1614     const KeyDef *p;
1615     char *endp;
1616     int ret;
1617
1618     for(p = key_defs; p->name != NULL; p++) {
1619         if (!strcmp(key, p->name))
1620             return p->keycode;
1621     }
1622     if (strstart(key, "0x", NULL)) {
1623         ret = strtoul(key, &endp, 0);
1624         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1625             return ret;
1626     }
1627     return -1;
1628 }
1629
1630 #define MAX_KEYCODES 16
1631 static uint8_t keycodes[MAX_KEYCODES];
1632 static int nb_pending_keycodes;
1633 static QEMUTimer *key_timer;
1634
1635 static void release_keys(void *opaque)
1636 {
1637     int keycode;
1638
1639     while (nb_pending_keycodes > 0) {
1640         nb_pending_keycodes--;
1641         keycode = keycodes[nb_pending_keycodes];
1642         if (keycode & 0x80)
1643             kbd_put_keycode(0xe0);
1644         kbd_put_keycode(keycode | 0x80);
1645     }
1646 }
1647
1648 static void do_sendkey(Monitor *mon, const QDict *qdict)
1649 {
1650     char keyname_buf[16];
1651     char *separator;
1652     int keyname_len, keycode, i;
1653     const char *string = qdict_get_str(qdict, "string");
1654     int has_hold_time = qdict_haskey(qdict, "hold_time");
1655     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1656
1657     if (nb_pending_keycodes > 0) {
1658         qemu_del_timer(key_timer);
1659         release_keys(NULL);
1660     }
1661     if (!has_hold_time)
1662         hold_time = 100;
1663     i = 0;
1664     while (1) {
1665         separator = strchr(string, '-');
1666         keyname_len = separator ? separator - string : strlen(string);
1667         if (keyname_len > 0) {
1668             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1669             if (keyname_len > sizeof(keyname_buf) - 1) {
1670                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1671                 return;
1672             }
1673             if (i == MAX_KEYCODES) {
1674                 monitor_printf(mon, "too many keys\n");
1675                 return;
1676             }
1677             keyname_buf[keyname_len] = 0;
1678             keycode = get_keycode(keyname_buf);
1679             if (keycode < 0) {
1680                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1681                 return;
1682             }
1683             keycodes[i++] = keycode;
1684         }
1685         if (!separator)
1686             break;
1687         string = separator + 1;
1688     }
1689     nb_pending_keycodes = i;
1690     /* key down events */
1691     for (i = 0; i < nb_pending_keycodes; i++) {
1692         keycode = keycodes[i];
1693         if (keycode & 0x80)
1694             kbd_put_keycode(0xe0);
1695         kbd_put_keycode(keycode & 0x7f);
1696     }
1697     /* delayed key up events */
1698     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1699                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
1700 }
1701
1702 static int mouse_button_state;
1703
1704 static void do_mouse_move(Monitor *mon, const QDict *qdict)
1705 {
1706     int dx, dy, dz;
1707     const char *dx_str = qdict_get_str(qdict, "dx_str");
1708     const char *dy_str = qdict_get_str(qdict, "dy_str");
1709     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1710     dx = strtol(dx_str, NULL, 0);
1711     dy = strtol(dy_str, NULL, 0);
1712     dz = 0;
1713     if (dz_str)
1714         dz = strtol(dz_str, NULL, 0);
1715     kbd_mouse_event(dx, dy, dz, mouse_button_state);
1716 }
1717
1718 static void do_mouse_button(Monitor *mon, const QDict *qdict)
1719 {
1720     int button_state = qdict_get_int(qdict, "button_state");
1721     mouse_button_state = button_state;
1722     kbd_mouse_event(0, 0, 0, mouse_button_state);
1723 }
1724
1725 static void do_ioport_read(Monitor *mon, const QDict *qdict)
1726 {
1727     int size = qdict_get_int(qdict, "size");
1728     int addr = qdict_get_int(qdict, "addr");
1729     int has_index = qdict_haskey(qdict, "index");
1730     uint32_t val;
1731     int suffix;
1732
1733     if (has_index) {
1734         int index = qdict_get_int(qdict, "index");
1735         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1736         addr++;
1737     }
1738     addr &= 0xffff;
1739
1740     switch(size) {
1741     default:
1742     case 1:
1743         val = cpu_inb(addr);
1744         suffix = 'b';
1745         break;
1746     case 2:
1747         val = cpu_inw(addr);
1748         suffix = 'w';
1749         break;
1750     case 4:
1751         val = cpu_inl(addr);
1752         suffix = 'l';
1753         break;
1754     }
1755     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1756                    suffix, addr, size * 2, val);
1757 }
1758
1759 static void do_ioport_write(Monitor *mon, const QDict *qdict)
1760 {
1761     int size = qdict_get_int(qdict, "size");
1762     int addr = qdict_get_int(qdict, "addr");
1763     int val = qdict_get_int(qdict, "val");
1764
1765     addr &= IOPORTS_MASK;
1766
1767     switch (size) {
1768     default:
1769     case 1:
1770         cpu_outb(addr, val);
1771         break;
1772     case 2:
1773         cpu_outw(addr, val);
1774         break;
1775     case 4:
1776         cpu_outl(addr, val);
1777         break;
1778     }
1779 }
1780
1781 static void do_boot_set(Monitor *mon, const QDict *qdict)
1782 {
1783     int res;
1784     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1785
1786     res = qemu_boot_set(bootdevice);
1787     if (res == 0) {
1788         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1789     } else if (res > 0) {
1790         monitor_printf(mon, "setting boot device list failed\n");
1791     } else {
1792         monitor_printf(mon, "no function defined to set boot device list for "
1793                        "this architecture\n");
1794     }
1795 }
1796
1797 /**
1798  * do_system_reset(): Issue a machine reset
1799  */
1800 static int do_system_reset(Monitor *mon, const QDict *qdict,
1801                            QObject **ret_data)
1802 {
1803     qemu_system_reset_request();
1804     return 0;
1805 }
1806
1807 /**
1808  * do_system_powerdown(): Issue a machine powerdown
1809  */
1810 static int do_system_powerdown(Monitor *mon, const QDict *qdict,
1811                                QObject **ret_data)
1812 {
1813     qemu_system_powerdown_request();
1814     return 0;
1815 }
1816
1817 #if defined(TARGET_I386)
1818 static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1819 {
1820     monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1821                    addr,
1822                    pte & mask,
1823                    pte & PG_GLOBAL_MASK ? 'G' : '-',
1824                    pte & PG_PSE_MASK ? 'P' : '-',
1825                    pte & PG_DIRTY_MASK ? 'D' : '-',
1826                    pte & PG_ACCESSED_MASK ? 'A' : '-',
1827                    pte & PG_PCD_MASK ? 'C' : '-',
1828                    pte & PG_PWT_MASK ? 'T' : '-',
1829                    pte & PG_USER_MASK ? 'U' : '-',
1830                    pte & PG_RW_MASK ? 'W' : '-');
1831 }
1832
1833 static void tlb_info(Monitor *mon)
1834 {
1835     CPUState *env;
1836     int l1, l2;
1837     uint32_t pgd, pde, pte;
1838
1839     env = mon_get_cpu();
1840
1841     if (!(env->cr[0] & CR0_PG_MASK)) {
1842         monitor_printf(mon, "PG disabled\n");
1843         return;
1844     }
1845     pgd = env->cr[3] & ~0xfff;
1846     for(l1 = 0; l1 < 1024; l1++) {
1847         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1848         pde = le32_to_cpu(pde);
1849         if (pde & PG_PRESENT_MASK) {
1850             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1851                 print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1852             } else {
1853                 for(l2 = 0; l2 < 1024; l2++) {
1854                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1855                                              (uint8_t *)&pte, 4);
1856                     pte = le32_to_cpu(pte);
1857                     if (pte & PG_PRESENT_MASK) {
1858                         print_pte(mon, (l1 << 22) + (l2 << 12),
1859                                   pte & ~PG_PSE_MASK,
1860                                   ~0xfff);
1861                     }
1862                 }
1863             }
1864         }
1865     }
1866 }
1867
1868 static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1869                       uint32_t end, int prot)
1870 {
1871     int prot1;
1872     prot1 = *plast_prot;
1873     if (prot != prot1) {
1874         if (*pstart != -1) {
1875             monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1876                            *pstart, end, end - *pstart,
1877                            prot1 & PG_USER_MASK ? 'u' : '-',
1878                            'r',
1879                            prot1 & PG_RW_MASK ? 'w' : '-');
1880         }
1881         if (prot != 0)
1882             *pstart = end;
1883         else
1884             *pstart = -1;
1885         *plast_prot = prot;
1886     }
1887 }
1888
1889 static void mem_info(Monitor *mon)
1890 {
1891     CPUState *env;
1892     int l1, l2, prot, last_prot;
1893     uint32_t pgd, pde, pte, start, end;
1894
1895     env = mon_get_cpu();
1896
1897     if (!(env->cr[0] & CR0_PG_MASK)) {
1898         monitor_printf(mon, "PG disabled\n");
1899         return;
1900     }
1901     pgd = env->cr[3] & ~0xfff;
1902     last_prot = 0;
1903     start = -1;
1904     for(l1 = 0; l1 < 1024; l1++) {
1905         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1906         pde = le32_to_cpu(pde);
1907         end = l1 << 22;
1908         if (pde & PG_PRESENT_MASK) {
1909             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1910                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1911                 mem_print(mon, &start, &last_prot, end, prot);
1912             } else {
1913                 for(l2 = 0; l2 < 1024; l2++) {
1914                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1915                                              (uint8_t *)&pte, 4);
1916                     pte = le32_to_cpu(pte);
1917                     end = (l1 << 22) + (l2 << 12);
1918                     if (pte & PG_PRESENT_MASK) {
1919                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1920                     } else {
1921                         prot = 0;
1922                     }
1923                     mem_print(mon, &start, &last_prot, end, prot);
1924                 }
1925             }
1926         } else {
1927             prot = 0;
1928             mem_print(mon, &start, &last_prot, end, prot);
1929         }
1930     }
1931 }
1932 #endif
1933
1934 #if defined(TARGET_SH4)
1935
1936 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1937 {
1938     monitor_printf(mon, " tlb%i:\t"
1939                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1940                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1941                    "dirty=%hhu writethrough=%hhu\n",
1942                    idx,
1943                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1944                    tlb->v, tlb->sh, tlb->c, tlb->pr,
1945                    tlb->d, tlb->wt);
1946 }
1947
1948 static void tlb_info(Monitor *mon)
1949 {
1950     CPUState *env = mon_get_cpu();
1951     int i;
1952
1953     monitor_printf (mon, "ITLB:\n");
1954     for (i = 0 ; i < ITLB_SIZE ; i++)
1955         print_tlb (mon, i, &env->itlb[i]);
1956     monitor_printf (mon, "UTLB:\n");
1957     for (i = 0 ; i < UTLB_SIZE ; i++)
1958         print_tlb (mon, i, &env->utlb[i]);
1959 }
1960
1961 #endif
1962
1963 static void do_info_kvm_print(Monitor *mon, const QObject *data)
1964 {
1965     QDict *qdict;
1966
1967     qdict = qobject_to_qdict(data);
1968
1969     monitor_printf(mon, "kvm support: ");
1970     if (qdict_get_bool(qdict, "present")) {
1971         monitor_printf(mon, "%s\n", qdict_get_bool(qdict, "enabled") ?
1972                                     "enabled" : "disabled");
1973     } else {
1974         monitor_printf(mon, "not compiled\n");
1975     }
1976 }
1977
1978 static void do_info_kvm(Monitor *mon, QObject **ret_data)
1979 {
1980 #ifdef CONFIG_KVM
1981     *ret_data = qobject_from_jsonf("{ 'enabled': %i, 'present': true }",
1982                                    kvm_enabled());
1983 #else
1984     *ret_data = qobject_from_jsonf("{ 'enabled': false, 'present': false }");
1985 #endif
1986 }
1987
1988 static void do_info_numa(Monitor *mon)
1989 {
1990     int i;
1991     CPUState *env;
1992
1993     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1994     for (i = 0; i < nb_numa_nodes; i++) {
1995         monitor_printf(mon, "node %d cpus:", i);
1996         for (env = first_cpu; env != NULL; env = env->next_cpu) {
1997             if (env->numa_node == i) {
1998                 monitor_printf(mon, " %d", env->cpu_index);
1999             }
2000         }
2001         monitor_printf(mon, "\n");
2002         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
2003             node_mem[i] >> 20);
2004     }
2005 }
2006
2007 #ifdef CONFIG_PROFILER
2008
2009 int64_t qemu_time;
2010 int64_t dev_time;
2011
2012 static void do_info_profile(Monitor *mon)
2013 {
2014     int64_t total;
2015     total = qemu_time;
2016     if (total == 0)
2017         total = 1;
2018     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
2019                    dev_time, dev_time / (double)get_ticks_per_sec());
2020     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
2021                    qemu_time, qemu_time / (double)get_ticks_per_sec());
2022     qemu_time = 0;
2023     dev_time = 0;
2024 }
2025 #else
2026 static void do_info_profile(Monitor *mon)
2027 {
2028     monitor_printf(mon, "Internal profiler not compiled\n");
2029 }
2030 #endif
2031
2032 /* Capture support */
2033 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2034
2035 static void do_info_capture(Monitor *mon)
2036 {
2037     int i;
2038     CaptureState *s;
2039
2040     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2041         monitor_printf(mon, "[%d]: ", i);
2042         s->ops.info (s->opaque);
2043     }
2044 }
2045
2046 #ifdef HAS_AUDIO
2047 static void do_stop_capture(Monitor *mon, const QDict *qdict)
2048 {
2049     int i;
2050     int n = qdict_get_int(qdict, "n");
2051     CaptureState *s;
2052
2053     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2054         if (i == n) {
2055             s->ops.destroy (s->opaque);
2056             QLIST_REMOVE (s, entries);
2057             qemu_free (s);
2058             return;
2059         }
2060     }
2061 }
2062
2063 static void do_wav_capture(Monitor *mon, const QDict *qdict)
2064 {
2065     const char *path = qdict_get_str(qdict, "path");
2066     int has_freq = qdict_haskey(qdict, "freq");
2067     int freq = qdict_get_try_int(qdict, "freq", -1);
2068     int has_bits = qdict_haskey(qdict, "bits");
2069     int bits = qdict_get_try_int(qdict, "bits", -1);
2070     int has_channels = qdict_haskey(qdict, "nchannels");
2071     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2072     CaptureState *s;
2073
2074     s = qemu_mallocz (sizeof (*s));
2075
2076     freq = has_freq ? freq : 44100;
2077     bits = has_bits ? bits : 16;
2078     nchannels = has_channels ? nchannels : 2;
2079
2080     if (wav_start_capture (s, path, freq, bits, nchannels)) {
2081         monitor_printf(mon, "Faied to add wave capture\n");
2082         qemu_free (s);
2083     }
2084     QLIST_INSERT_HEAD (&capture_head, s, entries);
2085 }
2086 #endif
2087
2088 #if defined(TARGET_I386)
2089 static void do_inject_nmi(Monitor *mon, const QDict *qdict)
2090 {
2091     CPUState *env;
2092     int cpu_index = qdict_get_int(qdict, "cpu_index");
2093
2094     for (env = first_cpu; env != NULL; env = env->next_cpu)
2095         if (env->cpu_index == cpu_index) {
2096             cpu_interrupt(env, CPU_INTERRUPT_NMI);
2097             break;
2098         }
2099 }
2100 #endif
2101
2102 static void do_info_status_print(Monitor *mon, const QObject *data)
2103 {
2104     QDict *qdict;
2105
2106     qdict = qobject_to_qdict(data);
2107
2108     monitor_printf(mon, "VM status: ");
2109     if (qdict_get_bool(qdict, "running")) {
2110         monitor_printf(mon, "running");
2111         if (qdict_get_bool(qdict, "singlestep")) {
2112             monitor_printf(mon, " (single step mode)");
2113         }
2114     } else {
2115         monitor_printf(mon, "paused");
2116     }
2117
2118     monitor_printf(mon, "\n");
2119 }
2120
2121 static void do_info_status(Monitor *mon, QObject **ret_data)
2122 {
2123     *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }",
2124                                     vm_running, singlestep);
2125 }
2126
2127 static qemu_acl *find_acl(Monitor *mon, const char *name)
2128 {
2129     qemu_acl *acl = qemu_acl_find(name);
2130
2131     if (!acl) {
2132         monitor_printf(mon, "acl: unknown list '%s'\n", name);
2133     }
2134     return acl;
2135 }
2136
2137 static void do_acl_show(Monitor *mon, const QDict *qdict)
2138 {
2139     const char *aclname = qdict_get_str(qdict, "aclname");
2140     qemu_acl *acl = find_acl(mon, aclname);
2141     qemu_acl_entry *entry;
2142     int i = 0;
2143
2144     if (acl) {
2145         monitor_printf(mon, "policy: %s\n",
2146                        acl->defaultDeny ? "deny" : "allow");
2147         QTAILQ_FOREACH(entry, &acl->entries, next) {
2148             i++;
2149             monitor_printf(mon, "%d: %s %s\n", i,
2150                            entry->deny ? "deny" : "allow", entry->match);
2151         }
2152     }
2153 }
2154
2155 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2156 {
2157     const char *aclname = qdict_get_str(qdict, "aclname");
2158     qemu_acl *acl = find_acl(mon, aclname);
2159
2160     if (acl) {
2161         qemu_acl_reset(acl);
2162         monitor_printf(mon, "acl: removed all rules\n");
2163     }
2164 }
2165
2166 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2167 {
2168     const char *aclname = qdict_get_str(qdict, "aclname");
2169     const char *policy = qdict_get_str(qdict, "policy");
2170     qemu_acl *acl = find_acl(mon, aclname);
2171
2172     if (acl) {
2173         if (strcmp(policy, "allow") == 0) {
2174             acl->defaultDeny = 0;
2175             monitor_printf(mon, "acl: policy set to 'allow'\n");
2176         } else if (strcmp(policy, "deny") == 0) {
2177             acl->defaultDeny = 1;
2178             monitor_printf(mon, "acl: policy set to 'deny'\n");
2179         } else {
2180             monitor_printf(mon, "acl: unknown policy '%s', "
2181                            "expected 'deny' or 'allow'\n", policy);
2182         }
2183     }
2184 }
2185
2186 static void do_acl_add(Monitor *mon, const QDict *qdict)
2187 {
2188     const char *aclname = qdict_get_str(qdict, "aclname");
2189     const char *match = qdict_get_str(qdict, "match");
2190     const char *policy = qdict_get_str(qdict, "policy");
2191     int has_index = qdict_haskey(qdict, "index");
2192     int index = qdict_get_try_int(qdict, "index", -1);
2193     qemu_acl *acl = find_acl(mon, aclname);
2194     int deny, ret;
2195
2196     if (acl) {
2197         if (strcmp(policy, "allow") == 0) {
2198             deny = 0;
2199         } else if (strcmp(policy, "deny") == 0) {
2200             deny = 1;
2201         } else {
2202             monitor_printf(mon, "acl: unknown policy '%s', "
2203                            "expected 'deny' or 'allow'\n", policy);
2204             return;
2205         }
2206         if (has_index)
2207             ret = qemu_acl_insert(acl, deny, match, index);
2208         else
2209             ret = qemu_acl_append(acl, deny, match);
2210         if (ret < 0)
2211             monitor_printf(mon, "acl: unable to add acl entry\n");
2212         else
2213             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2214     }
2215 }
2216
2217 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2218 {
2219     const char *aclname = qdict_get_str(qdict, "aclname");
2220     const char *match = qdict_get_str(qdict, "match");
2221     qemu_acl *acl = find_acl(mon, aclname);
2222     int ret;
2223
2224     if (acl) {
2225         ret = qemu_acl_remove(acl, match);
2226         if (ret < 0)
2227             monitor_printf(mon, "acl: no matching acl entry\n");
2228         else
2229             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2230     }
2231 }
2232
2233 #if defined(TARGET_I386)
2234 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2235 {
2236     CPUState *cenv;
2237     int cpu_index = qdict_get_int(qdict, "cpu_index");
2238     int bank = qdict_get_int(qdict, "bank");
2239     uint64_t status = qdict_get_int(qdict, "status");
2240     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2241     uint64_t addr = qdict_get_int(qdict, "addr");
2242     uint64_t misc = qdict_get_int(qdict, "misc");
2243
2244     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2245         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2246             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2247             break;
2248         }
2249 }
2250 #endif
2251
2252 static int do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2253 {
2254     const char *fdname = qdict_get_str(qdict, "fdname");
2255     mon_fd_t *monfd;
2256     int fd;
2257
2258     fd = qemu_chr_get_msgfd(mon->chr);
2259     if (fd == -1) {
2260         qerror_report(QERR_FD_NOT_SUPPLIED);
2261         return -1;
2262     }
2263
2264     if (qemu_isdigit(fdname[0])) {
2265         qerror_report(QERR_INVALID_PARAMETER_VALUE, "fdname",
2266                       "a name not starting with a digit");
2267         return -1;
2268     }
2269
2270     QLIST_FOREACH(monfd, &mon->fds, next) {
2271         if (strcmp(monfd->name, fdname) != 0) {
2272             continue;
2273         }
2274
2275         close(monfd->fd);
2276         monfd->fd = fd;
2277         return 0;
2278     }
2279
2280     monfd = qemu_mallocz(sizeof(mon_fd_t));
2281     monfd->name = qemu_strdup(fdname);
2282     monfd->fd = fd;
2283
2284     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2285     return 0;
2286 }
2287
2288 static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2289 {
2290     const char *fdname = qdict_get_str(qdict, "fdname");
2291     mon_fd_t *monfd;
2292
2293     QLIST_FOREACH(monfd, &mon->fds, next) {
2294         if (strcmp(monfd->name, fdname) != 0) {
2295             continue;
2296         }
2297
2298         QLIST_REMOVE(monfd, next);
2299         close(monfd->fd);
2300         qemu_free(monfd->name);
2301         qemu_free(monfd);
2302         return 0;
2303     }
2304
2305     qerror_report(QERR_FD_NOT_FOUND, fdname);
2306     return -1;
2307 }
2308
2309 static void do_loadvm(Monitor *mon, const QDict *qdict)
2310 {
2311     int saved_vm_running  = vm_running;
2312     const char *name = qdict_get_str(qdict, "name");
2313
2314     vm_stop(0);
2315
2316     if (load_vmstate(name) == 0 && saved_vm_running) {
2317         vm_start();
2318     }
2319 }
2320
2321 int monitor_get_fd(Monitor *mon, const char *fdname)
2322 {
2323     mon_fd_t *monfd;
2324
2325     QLIST_FOREACH(monfd, &mon->fds, next) {
2326         int fd;
2327
2328         if (strcmp(monfd->name, fdname) != 0) {
2329             continue;
2330         }
2331
2332         fd = monfd->fd;
2333
2334         /* caller takes ownership of fd */
2335         QLIST_REMOVE(monfd, next);
2336         qemu_free(monfd->name);
2337         qemu_free(monfd);
2338
2339         return fd;
2340     }
2341
2342     return -1;
2343 }
2344
2345 static const mon_cmd_t mon_cmds[] = {
2346 #include "qemu-monitor.h"
2347     { NULL, NULL, },
2348 };
2349
2350 /* Please update qemu-monitor.hx when adding or changing commands */
2351 static const mon_cmd_t info_cmds[] = {
2352     {
2353         .name       = "version",
2354         .args_type  = "",
2355         .params     = "",
2356         .help       = "show the version of QEMU",
2357         .user_print = do_info_version_print,
2358         .mhandler.info_new = do_info_version,
2359     },
2360     {
2361         .name       = "commands",
2362         .args_type  = "",
2363         .params     = "",
2364         .help       = "list QMP available commands",
2365         .user_print = monitor_user_noop,
2366         .mhandler.info_new = do_info_commands,
2367     },
2368     {
2369         .name       = "network",
2370         .args_type  = "",
2371         .params     = "",
2372         .help       = "show the network state",
2373         .mhandler.info = do_info_network,
2374     },
2375     {
2376         .name       = "chardev",
2377         .args_type  = "",
2378         .params     = "",
2379         .help       = "show the character devices",
2380         .user_print = qemu_chr_info_print,
2381         .mhandler.info_new = qemu_chr_info,
2382     },
2383     {
2384         .name       = "block",
2385         .args_type  = "",
2386         .params     = "",
2387         .help       = "show the block devices",
2388         .user_print = bdrv_info_print,
2389         .mhandler.info_new = bdrv_info,
2390     },
2391     {
2392         .name       = "blockstats",
2393         .args_type  = "",
2394         .params     = "",
2395         .help       = "show block device statistics",
2396         .user_print = bdrv_stats_print,
2397         .mhandler.info_new = bdrv_info_stats,
2398     },
2399     {
2400         .name       = "registers",
2401         .args_type  = "",
2402         .params     = "",
2403         .help       = "show the cpu registers",
2404         .mhandler.info = do_info_registers,
2405     },
2406     {
2407         .name       = "cpus",
2408         .args_type  = "",
2409         .params     = "",
2410         .help       = "show infos for each CPU",
2411         .user_print = monitor_print_cpus,
2412         .mhandler.info_new = do_info_cpus,
2413     },
2414     {
2415         .name       = "history",
2416         .args_type  = "",
2417         .params     = "",
2418         .help       = "show the command line history",
2419         .mhandler.info = do_info_history,
2420     },
2421     {
2422         .name       = "irq",
2423         .args_type  = "",
2424         .params     = "",
2425         .help       = "show the interrupts statistics (if available)",
2426         .mhandler.info = irq_info,
2427     },
2428     {
2429         .name       = "pic",
2430         .args_type  = "",
2431         .params     = "",
2432         .help       = "show i8259 (PIC) state",
2433         .mhandler.info = pic_info,
2434     },
2435     {
2436         .name       = "pci",
2437         .args_type  = "",
2438         .params     = "",
2439         .help       = "show PCI info",
2440         .user_print = do_pci_info_print,
2441         .mhandler.info_new = do_pci_info,
2442     },
2443 #if defined(TARGET_I386) || defined(TARGET_SH4)
2444     {
2445         .name       = "tlb",
2446         .args_type  = "",
2447         .params     = "",
2448         .help       = "show virtual to physical memory mappings",
2449         .mhandler.info = tlb_info,
2450     },
2451 #endif
2452 #if defined(TARGET_I386)
2453     {
2454         .name       = "mem",
2455         .args_type  = "",
2456         .params     = "",
2457         .help       = "show the active virtual memory mappings",
2458         .mhandler.info = mem_info,
2459     },
2460 #endif
2461     {
2462         .name       = "jit",
2463         .args_type  = "",
2464         .params     = "",
2465         .help       = "show dynamic compiler info",
2466         .mhandler.info = do_info_jit,
2467     },
2468     {
2469         .name       = "kvm",
2470         .args_type  = "",
2471         .params     = "",
2472         .help       = "show KVM information",
2473         .user_print = do_info_kvm_print,
2474         .mhandler.info_new = do_info_kvm,
2475     },
2476     {
2477         .name       = "numa",
2478         .args_type  = "",
2479         .params     = "",
2480         .help       = "show NUMA information",
2481         .mhandler.info = do_info_numa,
2482     },
2483     {
2484         .name       = "usb",
2485         .args_type  = "",
2486         .params     = "",
2487         .help       = "show guest USB devices",
2488         .mhandler.info = usb_info,
2489     },
2490     {
2491         .name       = "usbhost",
2492         .args_type  = "",
2493         .params     = "",
2494         .help       = "show host USB devices",
2495         .mhandler.info = usb_host_info,
2496     },
2497     {
2498         .name       = "profile",
2499         .args_type  = "",
2500         .params     = "",
2501         .help       = "show profiling information",
2502         .mhandler.info = do_info_profile,
2503     },
2504     {
2505         .name       = "capture",
2506         .args_type  = "",
2507         .params     = "",
2508         .help       = "show capture information",
2509         .mhandler.info = do_info_capture,
2510     },
2511     {
2512         .name       = "snapshots",
2513         .args_type  = "",
2514         .params     = "",
2515         .help       = "show the currently saved VM snapshots",
2516         .mhandler.info = do_info_snapshots,
2517     },
2518     {
2519         .name       = "status",
2520         .args_type  = "",
2521         .params     = "",
2522         .help       = "show the current VM status (running|paused)",
2523         .user_print = do_info_status_print,
2524         .mhandler.info_new = do_info_status,
2525     },
2526     {
2527         .name       = "pcmcia",
2528         .args_type  = "",
2529         .params     = "",
2530         .help       = "show guest PCMCIA status",
2531         .mhandler.info = pcmcia_info,
2532     },
2533     {
2534         .name       = "mice",
2535         .args_type  = "",
2536         .params     = "",
2537         .help       = "show which guest mouse is receiving events",
2538         .user_print = do_info_mice_print,
2539         .mhandler.info_new = do_info_mice,
2540     },
2541     {
2542         .name       = "vnc",
2543         .args_type  = "",
2544         .params     = "",
2545         .help       = "show the vnc server status",
2546         .user_print = do_info_vnc_print,
2547         .mhandler.info_new = do_info_vnc,
2548     },
2549     {
2550         .name       = "name",
2551         .args_type  = "",
2552         .params     = "",
2553         .help       = "show the current VM name",
2554         .user_print = do_info_name_print,
2555         .mhandler.info_new = do_info_name,
2556     },
2557     {
2558         .name       = "uuid",
2559         .args_type  = "",
2560         .params     = "",
2561         .help       = "show the current VM UUID",
2562         .user_print = do_info_uuid_print,
2563         .mhandler.info_new = do_info_uuid,
2564     },
2565 #if defined(TARGET_PPC)
2566     {
2567         .name       = "cpustats",
2568         .args_type  = "",
2569         .params     = "",
2570         .help       = "show CPU statistics",
2571         .mhandler.info = do_info_cpu_stats,
2572     },
2573 #endif
2574 #if defined(CONFIG_SLIRP)
2575     {
2576         .name       = "usernet",
2577         .args_type  = "",
2578         .params     = "",
2579         .help       = "show user network stack connection states",
2580         .mhandler.info = do_info_usernet,
2581     },
2582 #endif
2583     {
2584         .name       = "migrate",
2585         .args_type  = "",
2586         .params     = "",
2587         .help       = "show migration status",
2588         .user_print = do_info_migrate_print,
2589         .mhandler.info_new = do_info_migrate,
2590     },
2591     {
2592         .name       = "balloon",
2593         .args_type  = "",
2594         .params     = "",
2595         .help       = "show balloon information",
2596         .user_print = monitor_print_balloon,
2597         .mhandler.info_async = do_info_balloon,
2598         .flags      = MONITOR_CMD_ASYNC,
2599     },
2600     {
2601         .name       = "qtree",
2602         .args_type  = "",
2603         .params     = "",
2604         .help       = "show device tree",
2605         .mhandler.info = do_info_qtree,
2606     },
2607     {
2608         .name       = "qdm",
2609         .args_type  = "",
2610         .params     = "",
2611         .help       = "show qdev device model list",
2612         .mhandler.info = do_info_qdm,
2613     },
2614     {
2615         .name       = "roms",
2616         .args_type  = "",
2617         .params     = "",
2618         .help       = "show roms",
2619         .mhandler.info = do_info_roms,
2620     },
2621 #if defined(CONFIG_SIMPLE_TRACE)
2622     {
2623         .name       = "trace",
2624         .args_type  = "",
2625         .params     = "",
2626         .help       = "show current contents of trace buffer",
2627         .mhandler.info = do_info_trace,
2628     },
2629     {
2630         .name       = "trace-events",
2631         .args_type  = "",
2632         .params     = "",
2633         .help       = "show available trace-events & their state",
2634         .mhandler.info = do_info_trace_events,
2635     },
2636 #endif
2637     {
2638         .name       = NULL,
2639     },
2640 };
2641
2642 /*******************************************************************/
2643
2644 static const char *pch;
2645 static jmp_buf expr_env;
2646
2647 #define MD_TLONG 0
2648 #define MD_I32   1
2649
2650 typedef struct MonitorDef {
2651     const char *name;
2652     int offset;
2653     target_long (*get_value)(const struct MonitorDef *md, int val);
2654     int type;
2655 } MonitorDef;
2656
2657 #if defined(TARGET_I386)
2658 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2659 {
2660     CPUState *env = mon_get_cpu();
2661     return env->eip + env->segs[R_CS].base;
2662 }
2663 #endif
2664
2665 #if defined(TARGET_PPC)
2666 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2667 {
2668     CPUState *env = mon_get_cpu();
2669     unsigned int u;
2670     int i;
2671
2672     u = 0;
2673     for (i = 0; i < 8; i++)
2674         u |= env->crf[i] << (32 - (4 * i));
2675
2676     return u;
2677 }
2678
2679 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2680 {
2681     CPUState *env = mon_get_cpu();
2682     return env->msr;
2683 }
2684
2685 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2686 {
2687     CPUState *env = mon_get_cpu();
2688     return env->xer;
2689 }
2690
2691 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2692 {
2693     CPUState *env = mon_get_cpu();
2694     return cpu_ppc_load_decr(env);
2695 }
2696
2697 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2698 {
2699     CPUState *env = mon_get_cpu();
2700     return cpu_ppc_load_tbu(env);
2701 }
2702
2703 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2704 {
2705     CPUState *env = mon_get_cpu();
2706     return cpu_ppc_load_tbl(env);
2707 }
2708 #endif
2709
2710 #if defined(TARGET_SPARC)
2711 #ifndef TARGET_SPARC64
2712 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2713 {
2714     CPUState *env = mon_get_cpu();
2715
2716     return cpu_get_psr(env);
2717 }
2718 #endif
2719
2720 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2721 {
2722     CPUState *env = mon_get_cpu();
2723     return env->regwptr[val];
2724 }
2725 #endif
2726
2727 static const MonitorDef monitor_defs[] = {
2728 #ifdef TARGET_I386
2729
2730 #define SEG(name, seg) \
2731     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2732     { name ".base", offsetof(CPUState, segs[seg].base) },\
2733     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2734
2735     { "eax", offsetof(CPUState, regs[0]) },
2736     { "ecx", offsetof(CPUState, regs[1]) },
2737     { "edx", offsetof(CPUState, regs[2]) },
2738     { "ebx", offsetof(CPUState, regs[3]) },
2739     { "esp|sp", offsetof(CPUState, regs[4]) },
2740     { "ebp|fp", offsetof(CPUState, regs[5]) },
2741     { "esi", offsetof(CPUState, regs[6]) },
2742     { "edi", offsetof(CPUState, regs[7]) },
2743 #ifdef TARGET_X86_64
2744     { "r8", offsetof(CPUState, regs[8]) },
2745     { "r9", offsetof(CPUState, regs[9]) },
2746     { "r10", offsetof(CPUState, regs[10]) },
2747     { "r11", offsetof(CPUState, regs[11]) },
2748     { "r12", offsetof(CPUState, regs[12]) },
2749     { "r13", offsetof(CPUState, regs[13]) },
2750     { "r14", offsetof(CPUState, regs[14]) },
2751     { "r15", offsetof(CPUState, regs[15]) },
2752 #endif
2753     { "eflags", offsetof(CPUState, eflags) },
2754     { "eip", offsetof(CPUState, eip) },
2755     SEG("cs", R_CS)
2756     SEG("ds", R_DS)
2757     SEG("es", R_ES)
2758     SEG("ss", R_SS)
2759     SEG("fs", R_FS)
2760     SEG("gs", R_GS)
2761     { "pc", 0, monitor_get_pc, },
2762 #elif defined(TARGET_PPC)
2763     /* General purpose registers */
2764     { "r0", offsetof(CPUState, gpr[0]) },
2765     { "r1", offsetof(CPUState, gpr[1]) },
2766     { "r2", offsetof(CPUState, gpr[2]) },
2767     { "r3", offsetof(CPUState, gpr[3]) },
2768     { "r4", offsetof(CPUState, gpr[4]) },
2769     { "r5", offsetof(CPUState, gpr[5]) },
2770     { "r6", offsetof(CPUState, gpr[6]) },
2771     { "r7", offsetof(CPUState, gpr[7]) },
2772     { "r8", offsetof(CPUState, gpr[8]) },
2773     { "r9", offsetof(CPUState, gpr[9]) },
2774     { "r10", offsetof(CPUState, gpr[10]) },
2775     { "r11", offsetof(CPUState, gpr[11]) },
2776     { "r12", offsetof(CPUState, gpr[12]) },
2777     { "r13", offsetof(CPUState, gpr[13]) },
2778     { "r14", offsetof(CPUState, gpr[14]) },
2779     { "r15", offsetof(CPUState, gpr[15]) },
2780     { "r16", offsetof(CPUState, gpr[16]) },
2781     { "r17", offsetof(CPUState, gpr[17]) },
2782     { "r18", offsetof(CPUState, gpr[18]) },
2783     { "r19", offsetof(CPUState, gpr[19]) },
2784     { "r20", offsetof(CPUState, gpr[20]) },
2785     { "r21", offsetof(CPUState, gpr[21]) },
2786     { "r22", offsetof(CPUState, gpr[22]) },
2787     { "r23", offsetof(CPUState, gpr[23]) },
2788     { "r24", offsetof(CPUState, gpr[24]) },
2789     { "r25", offsetof(CPUState, gpr[25]) },
2790     { "r26", offsetof(CPUState, gpr[26]) },
2791     { "r27", offsetof(CPUState, gpr[27]) },
2792     { "r28", offsetof(CPUState, gpr[28]) },
2793     { "r29", offsetof(CPUState, gpr[29]) },
2794     { "r30", offsetof(CPUState, gpr[30]) },
2795     { "r31", offsetof(CPUState, gpr[31]) },
2796     /* Floating point registers */
2797     { "f0", offsetof(CPUState, fpr[0]) },
2798     { "f1", offsetof(CPUState, fpr[1]) },
2799     { "f2", offsetof(CPUState, fpr[2]) },
2800     { "f3", offsetof(CPUState, fpr[3]) },
2801     { "f4", offsetof(CPUState, fpr[4]) },
2802     { "f5", offsetof(CPUState, fpr[5]) },
2803     { "f6", offsetof(CPUState, fpr[6]) },
2804     { "f7", offsetof(CPUState, fpr[7]) },
2805     { "f8", offsetof(CPUState, fpr[8]) },
2806     { "f9", offsetof(CPUState, fpr[9]) },
2807     { "f10", offsetof(CPUState, fpr[10]) },
2808     { "f11", offsetof(CPUState, fpr[11]) },
2809     { "f12", offsetof(CPUState, fpr[12]) },
2810     { "f13", offsetof(CPUState, fpr[13]) },
2811     { "f14", offsetof(CPUState, fpr[14]) },
2812     { "f15", offsetof(CPUState, fpr[15]) },
2813     { "f16", offsetof(CPUState, fpr[16]) },
2814     { "f17", offsetof(CPUState, fpr[17]) },
2815     { "f18", offsetof(CPUState, fpr[18]) },
2816     { "f19", offsetof(CPUState, fpr[19]) },
2817     { "f20", offsetof(CPUState, fpr[20]) },
2818     { "f21", offsetof(CPUState, fpr[21]) },
2819     { "f22", offsetof(CPUState, fpr[22]) },
2820     { "f23", offsetof(CPUState, fpr[23]) },
2821     { "f24", offsetof(CPUState, fpr[24]) },
2822     { "f25", offsetof(CPUState, fpr[25]) },
2823     { "f26", offsetof(CPUState, fpr[26]) },
2824     { "f27", offsetof(CPUState, fpr[27]) },
2825     { "f28", offsetof(CPUState, fpr[28]) },
2826     { "f29", offsetof(CPUState, fpr[29]) },
2827     { "f30", offsetof(CPUState, fpr[30]) },
2828     { "f31", offsetof(CPUState, fpr[31]) },
2829     { "fpscr", offsetof(CPUState, fpscr) },
2830     /* Next instruction pointer */
2831     { "nip|pc", offsetof(CPUState, nip) },
2832     { "lr", offsetof(CPUState, lr) },
2833     { "ctr", offsetof(CPUState, ctr) },
2834     { "decr", 0, &monitor_get_decr, },
2835     { "ccr", 0, &monitor_get_ccr, },
2836     /* Machine state register */
2837     { "msr", 0, &monitor_get_msr, },
2838     { "xer", 0, &monitor_get_xer, },
2839     { "tbu", 0, &monitor_get_tbu, },
2840     { "tbl", 0, &monitor_get_tbl, },
2841 #if defined(TARGET_PPC64)
2842     /* Address space register */
2843     { "asr", offsetof(CPUState, asr) },
2844 #endif
2845     /* Segment registers */
2846     { "sdr1", offsetof(CPUState, sdr1) },
2847     { "sr0", offsetof(CPUState, sr[0]) },
2848     { "sr1", offsetof(CPUState, sr[1]) },
2849     { "sr2", offsetof(CPUState, sr[2]) },
2850     { "sr3", offsetof(CPUState, sr[3]) },
2851     { "sr4", offsetof(CPUState, sr[4]) },
2852     { "sr5", offsetof(CPUState, sr[5]) },
2853     { "sr6", offsetof(CPUState, sr[6]) },
2854     { "sr7", offsetof(CPUState, sr[7]) },
2855     { "sr8", offsetof(CPUState, sr[8]) },
2856     { "sr9", offsetof(CPUState, sr[9]) },
2857     { "sr10", offsetof(CPUState, sr[10]) },
2858     { "sr11", offsetof(CPUState, sr[11]) },
2859     { "sr12", offsetof(CPUState, sr[12]) },
2860     { "sr13", offsetof(CPUState, sr[13]) },
2861     { "sr14", offsetof(CPUState, sr[14]) },
2862     { "sr15", offsetof(CPUState, sr[15]) },
2863     /* Too lazy to put BATs and SPRs ... */
2864 #elif defined(TARGET_SPARC)
2865     { "g0", offsetof(CPUState, gregs[0]) },
2866     { "g1", offsetof(CPUState, gregs[1]) },
2867     { "g2", offsetof(CPUState, gregs[2]) },
2868     { "g3", offsetof(CPUState, gregs[3]) },
2869     { "g4", offsetof(CPUState, gregs[4]) },
2870     { "g5", offsetof(CPUState, gregs[5]) },
2871     { "g6", offsetof(CPUState, gregs[6]) },
2872     { "g7", offsetof(CPUState, gregs[7]) },
2873     { "o0", 0, monitor_get_reg },
2874     { "o1", 1, monitor_get_reg },
2875     { "o2", 2, monitor_get_reg },
2876     { "o3", 3, monitor_get_reg },
2877     { "o4", 4, monitor_get_reg },
2878     { "o5", 5, monitor_get_reg },
2879     { "o6", 6, monitor_get_reg },
2880     { "o7", 7, monitor_get_reg },
2881     { "l0", 8, monitor_get_reg },
2882     { "l1", 9, monitor_get_reg },
2883     { "l2", 10, monitor_get_reg },
2884     { "l3", 11, monitor_get_reg },
2885     { "l4", 12, monitor_get_reg },
2886     { "l5", 13, monitor_get_reg },
2887     { "l6", 14, monitor_get_reg },
2888     { "l7", 15, monitor_get_reg },
2889     { "i0", 16, monitor_get_reg },
2890     { "i1", 17, monitor_get_reg },
2891     { "i2", 18, monitor_get_reg },
2892     { "i3", 19, monitor_get_reg },
2893     { "i4", 20, monitor_get_reg },
2894     { "i5", 21, monitor_get_reg },
2895     { "i6", 22, monitor_get_reg },
2896     { "i7", 23, monitor_get_reg },
2897     { "pc", offsetof(CPUState, pc) },
2898     { "npc", offsetof(CPUState, npc) },
2899     { "y", offsetof(CPUState, y) },
2900 #ifndef TARGET_SPARC64
2901     { "psr", 0, &monitor_get_psr, },
2902     { "wim", offsetof(CPUState, wim) },
2903 #endif
2904     { "tbr", offsetof(CPUState, tbr) },
2905     { "fsr", offsetof(CPUState, fsr) },
2906     { "f0", offsetof(CPUState, fpr[0]) },
2907     { "f1", offsetof(CPUState, fpr[1]) },
2908     { "f2", offsetof(CPUState, fpr[2]) },
2909     { "f3", offsetof(CPUState, fpr[3]) },
2910     { "f4", offsetof(CPUState, fpr[4]) },
2911     { "f5", offsetof(CPUState, fpr[5]) },
2912     { "f6", offsetof(CPUState, fpr[6]) },
2913     { "f7", offsetof(CPUState, fpr[7]) },
2914     { "f8", offsetof(CPUState, fpr[8]) },
2915     { "f9", offsetof(CPUState, fpr[9]) },
2916     { "f10", offsetof(CPUState, fpr[10]) },
2917     { "f11", offsetof(CPUState, fpr[11]) },
2918     { "f12", offsetof(CPUState, fpr[12]) },
2919     { "f13", offsetof(CPUState, fpr[13]) },
2920     { "f14", offsetof(CPUState, fpr[14]) },
2921     { "f15", offsetof(CPUState, fpr[15]) },
2922     { "f16", offsetof(CPUState, fpr[16]) },
2923     { "f17", offsetof(CPUState, fpr[17]) },
2924     { "f18", offsetof(CPUState, fpr[18]) },
2925     { "f19", offsetof(CPUState, fpr[19]) },
2926     { "f20", offsetof(CPUState, fpr[20]) },
2927     { "f21", offsetof(CPUState, fpr[21]) },
2928     { "f22", offsetof(CPUState, fpr[22]) },
2929     { "f23", offsetof(CPUState, fpr[23]) },
2930     { "f24", offsetof(CPUState, fpr[24]) },
2931     { "f25", offsetof(CPUState, fpr[25]) },
2932     { "f26", offsetof(CPUState, fpr[26]) },
2933     { "f27", offsetof(CPUState, fpr[27]) },
2934     { "f28", offsetof(CPUState, fpr[28]) },
2935     { "f29", offsetof(CPUState, fpr[29]) },
2936     { "f30", offsetof(CPUState, fpr[30]) },
2937     { "f31", offsetof(CPUState, fpr[31]) },
2938 #ifdef TARGET_SPARC64
2939     { "f32", offsetof(CPUState, fpr[32]) },
2940     { "f34", offsetof(CPUState, fpr[34]) },
2941     { "f36", offsetof(CPUState, fpr[36]) },
2942     { "f38", offsetof(CPUState, fpr[38]) },
2943     { "f40", offsetof(CPUState, fpr[40]) },
2944     { "f42", offsetof(CPUState, fpr[42]) },
2945     { "f44", offsetof(CPUState, fpr[44]) },
2946     { "f46", offsetof(CPUState, fpr[46]) },
2947     { "f48", offsetof(CPUState, fpr[48]) },
2948     { "f50", offsetof(CPUState, fpr[50]) },
2949     { "f52", offsetof(CPUState, fpr[52]) },
2950     { "f54", offsetof(CPUState, fpr[54]) },
2951     { "f56", offsetof(CPUState, fpr[56]) },
2952     { "f58", offsetof(CPUState, fpr[58]) },
2953     { "f60", offsetof(CPUState, fpr[60]) },
2954     { "f62", offsetof(CPUState, fpr[62]) },
2955     { "asi", offsetof(CPUState, asi) },
2956     { "pstate", offsetof(CPUState, pstate) },
2957     { "cansave", offsetof(CPUState, cansave) },
2958     { "canrestore", offsetof(CPUState, canrestore) },
2959     { "otherwin", offsetof(CPUState, otherwin) },
2960     { "wstate", offsetof(CPUState, wstate) },
2961     { "cleanwin", offsetof(CPUState, cleanwin) },
2962     { "fprs", offsetof(CPUState, fprs) },
2963 #endif
2964 #endif
2965     { NULL },
2966 };
2967
2968 static void expr_error(Monitor *mon, const char *msg)
2969 {
2970     monitor_printf(mon, "%s\n", msg);
2971     longjmp(expr_env, 1);
2972 }
2973
2974 /* return 0 if OK, -1 if not found */
2975 static int get_monitor_def(target_long *pval, const char *name)
2976 {
2977     const MonitorDef *md;
2978     void *ptr;
2979
2980     for(md = monitor_defs; md->name != NULL; md++) {
2981         if (compare_cmd(name, md->name)) {
2982             if (md->get_value) {
2983                 *pval = md->get_value(md, md->offset);
2984             } else {
2985                 CPUState *env = mon_get_cpu();
2986                 ptr = (uint8_t *)env + md->offset;
2987                 switch(md->type) {
2988                 case MD_I32:
2989                     *pval = *(int32_t *)ptr;
2990                     break;
2991                 case MD_TLONG:
2992                     *pval = *(target_long *)ptr;
2993                     break;
2994                 default:
2995                     *pval = 0;
2996                     break;
2997                 }
2998             }
2999             return 0;
3000         }
3001     }
3002     return -1;
3003 }
3004
3005 static void next(void)
3006 {
3007     if (*pch != '\0') {
3008         pch++;
3009         while (qemu_isspace(*pch))
3010             pch++;
3011     }
3012 }
3013
3014 static int64_t expr_sum(Monitor *mon);
3015
3016 static int64_t expr_unary(Monitor *mon)
3017 {
3018     int64_t n;
3019     char *p;
3020     int ret;
3021
3022     switch(*pch) {
3023     case '+':
3024         next();
3025         n = expr_unary(mon);
3026         break;
3027     case '-':
3028         next();
3029         n = -expr_unary(mon);
3030         break;
3031     case '~':
3032         next();
3033         n = ~expr_unary(mon);
3034         break;
3035     case '(':
3036         next();
3037         n = expr_sum(mon);
3038         if (*pch != ')') {
3039             expr_error(mon, "')' expected");
3040         }
3041         next();
3042         break;
3043     case '\'':
3044         pch++;
3045         if (*pch == '\0')
3046             expr_error(mon, "character constant expected");
3047         n = *pch;
3048         pch++;
3049         if (*pch != '\'')
3050             expr_error(mon, "missing terminating \' character");
3051         next();
3052         break;
3053     case '$':
3054         {
3055             char buf[128], *q;
3056             target_long reg=0;
3057
3058             pch++;
3059             q = buf;
3060             while ((*pch >= 'a' && *pch <= 'z') ||
3061                    (*pch >= 'A' && *pch <= 'Z') ||
3062                    (*pch >= '0' && *pch <= '9') ||
3063                    *pch == '_' || *pch == '.') {
3064                 if ((q - buf) < sizeof(buf) - 1)
3065                     *q++ = *pch;
3066                 pch++;
3067             }
3068             while (qemu_isspace(*pch))
3069                 pch++;
3070             *q = 0;
3071             ret = get_monitor_def(&reg, buf);
3072             if (ret < 0)
3073                 expr_error(mon, "unknown register");
3074             n = reg;
3075         }
3076         break;
3077     case '\0':
3078         expr_error(mon, "unexpected end of expression");
3079         n = 0;
3080         break;
3081     default:
3082 #if TARGET_PHYS_ADDR_BITS > 32
3083         n = strtoull(pch, &p, 0);
3084 #else
3085         n = strtoul(pch, &p, 0);
3086 #endif
3087         if (pch == p) {
3088             expr_error(mon, "invalid char in expression");
3089         }
3090         pch = p;
3091         while (qemu_isspace(*pch))
3092             pch++;
3093         break;
3094     }
3095     return n;
3096 }
3097
3098
3099 static int64_t expr_prod(Monitor *mon)
3100 {
3101     int64_t val, val2;
3102     int op;
3103
3104     val = expr_unary(mon);
3105     for(;;) {
3106         op = *pch;
3107         if (op != '*' && op != '/' && op != '%')
3108             break;
3109         next();
3110         val2 = expr_unary(mon);
3111         switch(op) {
3112         default:
3113         case '*':
3114             val *= val2;
3115             break;
3116         case '/':
3117         case '%':
3118             if (val2 == 0)
3119                 expr_error(mon, "division by zero");
3120             if (op == '/')
3121                 val /= val2;
3122             else
3123                 val %= val2;
3124             break;
3125         }
3126     }
3127     return val;
3128 }
3129
3130 static int64_t expr_logic(Monitor *mon)
3131 {
3132     int64_t val, val2;
3133     int op;
3134
3135     val = expr_prod(mon);
3136     for(;;) {
3137         op = *pch;
3138         if (op != '&' && op != '|' && op != '^')
3139             break;
3140         next();
3141         val2 = expr_prod(mon);
3142         switch(op) {
3143         default:
3144         case '&':
3145             val &= val2;
3146             break;
3147         case '|':
3148             val |= val2;
3149             break;
3150         case '^':
3151             val ^= val2;
3152             break;
3153         }
3154     }
3155     return val;
3156 }
3157
3158 static int64_t expr_sum(Monitor *mon)
3159 {
3160     int64_t val, val2;
3161     int op;
3162
3163     val = expr_logic(mon);
3164     for(;;) {
3165         op = *pch;
3166         if (op != '+' && op != '-')
3167             break;
3168         next();
3169         val2 = expr_logic(mon);
3170         if (op == '+')
3171             val += val2;
3172         else
3173             val -= val2;
3174     }
3175     return val;
3176 }
3177
3178 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3179 {
3180     pch = *pp;
3181     if (setjmp(expr_env)) {
3182         *pp = pch;
3183         return -1;
3184     }
3185     while (qemu_isspace(*pch))
3186         pch++;
3187     *pval = expr_sum(mon);
3188     *pp = pch;
3189     return 0;
3190 }
3191
3192 static int get_double(Monitor *mon, double *pval, const char **pp)
3193 {
3194     const char *p = *pp;
3195     char *tailp;
3196     double d;
3197
3198     d = strtod(p, &tailp);
3199     if (tailp == p) {
3200         monitor_printf(mon, "Number expected\n");
3201         return -1;
3202     }
3203     if (d != d || d - d != 0) {
3204         /* NaN or infinity */
3205         monitor_printf(mon, "Bad number\n");
3206         return -1;
3207     }
3208     *pval = d;
3209     *pp = tailp;
3210     return 0;
3211 }
3212
3213 static int get_str(char *buf, int buf_size, const char **pp)
3214 {
3215     const char *p;
3216     char *q;
3217     int c;
3218
3219     q = buf;
3220     p = *pp;
3221     while (qemu_isspace(*p))
3222         p++;
3223     if (*p == '\0') {
3224     fail:
3225         *q = '\0';
3226         *pp = p;
3227         return -1;
3228     }
3229     if (*p == '\"') {
3230         p++;
3231         while (*p != '\0' && *p != '\"') {
3232             if (*p == '\\') {
3233                 p++;
3234                 c = *p++;
3235                 switch(c) {
3236                 case 'n':
3237                     c = '\n';
3238                     break;
3239                 case 'r':
3240                     c = '\r';
3241                     break;
3242                 case '\\':
3243                 case '\'':
3244                 case '\"':
3245                     break;
3246                 default:
3247                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3248                     goto fail;
3249                 }
3250                 if ((q - buf) < buf_size - 1) {
3251                     *q++ = c;
3252                 }
3253             } else {
3254                 if ((q - buf) < buf_size - 1) {
3255                     *q++ = *p;
3256                 }
3257                 p++;
3258             }
3259         }
3260         if (*p != '\"') {
3261             qemu_printf("unterminated string\n");
3262             goto fail;
3263         }
3264         p++;
3265     } else {
3266         while (*p != '\0' && !qemu_isspace(*p)) {
3267             if ((q - buf) < buf_size - 1) {
3268                 *q++ = *p;
3269             }
3270             p++;
3271         }
3272     }
3273     *q = '\0';
3274     *pp = p;
3275     return 0;
3276 }
3277
3278 /*
3279  * Store the command-name in cmdname, and return a pointer to
3280  * the remaining of the command string.
3281  */
3282 static const char *get_command_name(const char *cmdline,
3283                                     char *cmdname, size_t nlen)
3284 {
3285     size_t len;
3286     const char *p, *pstart;
3287
3288     p = cmdline;
3289     while (qemu_isspace(*p))
3290         p++;
3291     if (*p == '\0')
3292         return NULL;
3293     pstart = p;
3294     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3295         p++;
3296     len = p - pstart;
3297     if (len > nlen - 1)
3298         len = nlen - 1;
3299     memcpy(cmdname, pstart, len);
3300     cmdname[len] = '\0';
3301     return p;
3302 }
3303
3304 /**
3305  * Read key of 'type' into 'key' and return the current
3306  * 'type' pointer.
3307  */
3308 static char *key_get_info(const char *type, char **key)
3309 {
3310     size_t len;
3311     char *p, *str;
3312
3313     if (*type == ',')
3314         type++;
3315
3316     p = strchr(type, ':');
3317     if (!p) {
3318         *key = NULL;
3319         return NULL;
3320     }
3321     len = p - type;
3322
3323     str = qemu_malloc(len + 1);
3324     memcpy(str, type, len);
3325     str[len] = '\0';
3326
3327     *key = str;
3328     return ++p;
3329 }
3330
3331 static int default_fmt_format = 'x';
3332 static int default_fmt_size = 4;
3333
3334 #define MAX_ARGS 16
3335
3336 static int is_valid_option(const char *c, const char *typestr)
3337 {
3338     char option[3];
3339
3340     option[0] = '-';
3341     option[1] = *c;
3342     option[2] = '\0';
3343
3344     typestr = strstr(typestr, option);
3345     return (typestr != NULL);
3346 }
3347
3348 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3349 {
3350     const mon_cmd_t *cmd;
3351
3352     for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3353         if (compare_cmd(cmdname, cmd->name)) {
3354             return cmd;
3355         }
3356     }
3357
3358     return NULL;
3359 }
3360
3361 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3362                                               const char *cmdline,
3363                                               QDict *qdict)
3364 {
3365     const char *p, *typestr;
3366     int c;
3367     const mon_cmd_t *cmd;
3368     char cmdname[256];
3369     char buf[1024];
3370     char *key;
3371
3372 #ifdef DEBUG
3373     monitor_printf(mon, "command='%s'\n", cmdline);
3374 #endif
3375
3376     /* extract the command name */
3377     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3378     if (!p)
3379         return NULL;
3380
3381     cmd = monitor_find_command(cmdname);
3382     if (!cmd) {
3383         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3384         return NULL;
3385     }
3386
3387     /* parse the parameters */
3388     typestr = cmd->args_type;
3389     for(;;) {
3390         typestr = key_get_info(typestr, &key);
3391         if (!typestr)
3392             break;
3393         c = *typestr;
3394         typestr++;
3395         switch(c) {
3396         case 'F':
3397         case 'B':
3398         case 's':
3399             {
3400                 int ret;
3401
3402                 while (qemu_isspace(*p))
3403                     p++;
3404                 if (*typestr == '?') {
3405                     typestr++;
3406                     if (*p == '\0') {
3407                         /* no optional string: NULL argument */
3408                         break;
3409                     }
3410                 }
3411                 ret = get_str(buf, sizeof(buf), &p);
3412                 if (ret < 0) {
3413                     switch(c) {
3414                     case 'F':
3415                         monitor_printf(mon, "%s: filename expected\n",
3416                                        cmdname);
3417                         break;
3418                     case 'B':
3419                         monitor_printf(mon, "%s: block device name expected\n",
3420                                        cmdname);
3421                         break;
3422                     default:
3423                         monitor_printf(mon, "%s: string expected\n", cmdname);
3424                         break;
3425                     }
3426                     goto fail;
3427                 }
3428                 qdict_put(qdict, key, qstring_from_str(buf));
3429             }
3430             break;
3431         case 'O':
3432             {
3433                 QemuOptsList *opts_list;
3434                 QemuOpts *opts;
3435
3436                 opts_list = qemu_find_opts(key);
3437                 if (!opts_list || opts_list->desc->name) {
3438                     goto bad_type;
3439                 }
3440                 while (qemu_isspace(*p)) {
3441                     p++;
3442                 }
3443                 if (!*p)
3444                     break;
3445                 if (get_str(buf, sizeof(buf), &p) < 0) {
3446                     goto fail;
3447                 }
3448                 opts = qemu_opts_parse(opts_list, buf, 1);
3449                 if (!opts) {
3450                     goto fail;
3451                 }
3452                 qemu_opts_to_qdict(opts, qdict);
3453                 qemu_opts_del(opts);
3454             }
3455             break;
3456         case '/':
3457             {
3458                 int count, format, size;
3459
3460                 while (qemu_isspace(*p))
3461                     p++;
3462                 if (*p == '/') {
3463                     /* format found */
3464                     p++;
3465                     count = 1;
3466                     if (qemu_isdigit(*p)) {
3467                         count = 0;
3468                         while (qemu_isdigit(*p)) {
3469                             count = count * 10 + (*p - '0');
3470                             p++;
3471                         }
3472                     }
3473                     size = -1;
3474                     format = -1;
3475                     for(;;) {
3476                         switch(*p) {
3477                         case 'o':
3478                         case 'd':
3479                         case 'u':
3480                         case 'x':
3481                         case 'i':
3482                         case 'c':
3483                             format = *p++;
3484                             break;
3485                         case 'b':
3486                             size = 1;
3487                             p++;
3488                             break;
3489                         case 'h':
3490                             size = 2;
3491                             p++;
3492                             break;
3493                         case 'w':
3494                             size = 4;
3495                             p++;
3496                             break;
3497                         case 'g':
3498                         case 'L':
3499                             size = 8;
3500                             p++;
3501                             break;
3502                         default:
3503                             goto next;
3504                         }
3505                     }
3506                 next:
3507                     if (*p != '\0' && !qemu_isspace(*p)) {
3508                         monitor_printf(mon, "invalid char in format: '%c'\n",
3509                                        *p);
3510                         goto fail;
3511                     }
3512                     if (format < 0)
3513                         format = default_fmt_format;
3514                     if (format != 'i') {
3515                         /* for 'i', not specifying a size gives -1 as size */
3516                         if (size < 0)
3517                             size = default_fmt_size;
3518                         default_fmt_size = size;
3519                     }
3520                     default_fmt_format = format;
3521                 } else {
3522                     count = 1;
3523                     format = default_fmt_format;
3524                     if (format != 'i') {
3525                         size = default_fmt_size;
3526                     } else {
3527                         size = -1;
3528                     }
3529                 }
3530                 qdict_put(qdict, "count", qint_from_int(count));
3531                 qdict_put(qdict, "format", qint_from_int(format));
3532                 qdict_put(qdict, "size", qint_from_int(size));
3533             }
3534             break;
3535         case 'i':
3536         case 'l':
3537         case 'M':
3538             {
3539                 int64_t val;
3540
3541                 while (qemu_isspace(*p))
3542                     p++;
3543                 if (*typestr == '?' || *typestr == '.') {
3544                     if (*typestr == '?') {
3545                         if (*p == '\0') {
3546                             typestr++;
3547                             break;
3548                         }
3549                     } else {
3550                         if (*p == '.') {
3551                             p++;
3552                             while (qemu_isspace(*p))
3553                                 p++;
3554                         } else {
3555                             typestr++;
3556                             break;
3557                         }
3558                     }
3559                     typestr++;
3560                 }
3561                 if (get_expr(mon, &val, &p))
3562                     goto fail;
3563                 /* Check if 'i' is greater than 32-bit */
3564                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3565                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3566                     monitor_printf(mon, "integer is for 32-bit values\n");
3567                     goto fail;
3568                 } else if (c == 'M') {
3569                     val <<= 20;
3570                 }
3571                 qdict_put(qdict, key, qint_from_int(val));
3572             }
3573             break;
3574         case 'f':
3575         case 'T':
3576             {
3577                 double val;
3578
3579                 while (qemu_isspace(*p))
3580                     p++;
3581                 if (*typestr == '?') {
3582                     typestr++;
3583                     if (*p == '\0') {
3584                         break;
3585                     }
3586                 }
3587                 if (get_double(mon, &val, &p) < 0) {
3588                     goto fail;
3589                 }
3590                 if (c == 'f' && *p) {
3591                     switch (*p) {
3592                     case 'K': case 'k':
3593                         val *= 1 << 10; p++; break;
3594                     case 'M': case 'm':
3595                         val *= 1 << 20; p++; break;
3596                     case 'G': case 'g':
3597                         val *= 1 << 30; p++; break;
3598                     }
3599                 }
3600                 if (c == 'T' && p[0] && p[1] == 's') {
3601                     switch (*p) {
3602                     case 'm':
3603                         val /= 1e3; p += 2; break;
3604                     case 'u':
3605                         val /= 1e6; p += 2; break;
3606                     case 'n':
3607                         val /= 1e9; p += 2; break;
3608                     }
3609                 }
3610                 if (*p && !qemu_isspace(*p)) {
3611                     monitor_printf(mon, "Unknown unit suffix\n");
3612                     goto fail;
3613                 }
3614                 qdict_put(qdict, key, qfloat_from_double(val));
3615             }
3616             break;
3617         case 'b':
3618             {
3619                 const char *beg;
3620                 int val;
3621
3622                 while (qemu_isspace(*p)) {
3623                     p++;
3624                 }
3625                 beg = p;
3626                 while (qemu_isgraph(*p)) {
3627                     p++;
3628                 }
3629                 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3630                     val = 1;
3631                 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3632                     val = 0;
3633                 } else {
3634                     monitor_printf(mon, "Expected 'on' or 'off'\n");
3635                     goto fail;
3636                 }
3637                 qdict_put(qdict, key, qbool_from_int(val));
3638             }
3639             break;
3640         case '-':
3641             {
3642                 const char *tmp = p;
3643                 int skip_key = 0;
3644                 /* option */
3645
3646                 c = *typestr++;
3647                 if (c == '\0')
3648                     goto bad_type;
3649                 while (qemu_isspace(*p))
3650                     p++;
3651                 if (*p == '-') {
3652                     p++;
3653                     if(c != *p) {
3654                         if(!is_valid_option(p, typestr)) {
3655
3656                             monitor_printf(mon, "%s: unsupported option -%c\n",
3657                                            cmdname, *p);
3658                             goto fail;
3659                         } else {
3660                             skip_key = 1;
3661                         }
3662                     }
3663                     if(skip_key) {
3664                         p = tmp;
3665                     } else {
3666                         /* has option */
3667                         p++;
3668                         qdict_put(qdict, key, qbool_from_int(1));
3669                     }
3670                 }
3671             }
3672             break;
3673         default:
3674         bad_type:
3675             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3676             goto fail;
3677         }
3678         qemu_free(key);
3679         key = NULL;
3680     }
3681     /* check that all arguments were parsed */
3682     while (qemu_isspace(*p))
3683         p++;
3684     if (*p != '\0') {
3685         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3686                        cmdname);
3687         goto fail;
3688     }
3689
3690     return cmd;
3691
3692 fail:
3693     qemu_free(key);
3694     return NULL;
3695 }
3696
3697 void monitor_set_error(Monitor *mon, QError *qerror)
3698 {
3699     /* report only the first error */
3700     if (!mon->error) {
3701         mon->error = qerror;
3702     } else {
3703         MON_DEBUG("Additional error report at %s:%d\n",
3704                   qerror->file, qerror->linenr);
3705         QDECREF(qerror);
3706     }
3707 }
3708
3709 static int is_async_return(const QObject *data)
3710 {
3711     if (data && qobject_type(data) == QTYPE_QDICT) {
3712         return qdict_haskey(qobject_to_qdict(data), "__mon_async");
3713     }
3714
3715     return 0;
3716 }
3717
3718 static void handler_audit(Monitor *mon, const mon_cmd_t *cmd, int ret)
3719 {
3720     if (monitor_ctrl_mode(mon)) {
3721         if (ret && !monitor_has_error(mon)) {
3722             /*
3723              * If it returns failure, it must have passed on error.
3724              *
3725              * Action: Report an internal error to the client if in QMP.
3726              */
3727             qerror_report(QERR_UNDEFINED_ERROR);
3728             MON_DEBUG("command '%s' returned failure but did not pass an error\n",
3729                       cmd->name);
3730         }
3731
3732 #ifdef CONFIG_DEBUG_MONITOR
3733         if (!ret && monitor_has_error(mon)) {
3734             /*
3735              * If it returns success, it must not have passed an error.
3736              *
3737              * Action: Report the passed error to the client.
3738              */
3739             MON_DEBUG("command '%s' returned success but passed an error\n",
3740                       cmd->name);
3741         }
3742
3743         if (mon_print_count_get(mon) > 0 && strcmp(cmd->name, "info") != 0) {
3744             /*
3745              * Handlers should not call Monitor print functions.
3746              *
3747              * Action: Ignore them in QMP.
3748              *
3749              * (XXX: we don't check any 'info' or 'query' command here
3750              * because the user print function _is_ called by do_info(), hence
3751              * we will trigger this check. This problem will go away when we
3752              * make 'query' commands real and kill do_info())
3753              */
3754             MON_DEBUG("command '%s' called print functions %d time(s)\n",
3755                       cmd->name, mon_print_count_get(mon));
3756         }
3757 #endif
3758     } else {
3759         assert(!monitor_has_error(mon));
3760         QDECREF(mon->error);
3761         mon->error = NULL;
3762     }
3763 }
3764
3765 static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
3766                                  const QDict *params)
3767 {
3768     int ret;
3769     QObject *data = NULL;
3770
3771     mon_print_count_init(mon);
3772
3773     ret = cmd->mhandler.cmd_new(mon, params, &data);
3774     handler_audit(mon, cmd, ret);
3775
3776     if (is_async_return(data)) {
3777         /*
3778          * Asynchronous commands have no initial return data but they can
3779          * generate errors.  Data is returned via the async completion handler.
3780          */
3781         if (monitor_ctrl_mode(mon) && monitor_has_error(mon)) {
3782             monitor_protocol_emitter(mon, NULL);
3783         }
3784     } else if (monitor_ctrl_mode(mon)) {
3785         /* Monitor Protocol */
3786         monitor_protocol_emitter(mon, data);
3787     } else {
3788         /* User Protocol */
3789          if (data)
3790             cmd->user_print(mon, data);
3791     }
3792
3793     qobject_decref(data);
3794 }
3795
3796 static void handle_user_command(Monitor *mon, const char *cmdline)
3797 {
3798     QDict *qdict;
3799     const mon_cmd_t *cmd;
3800
3801     qdict = qdict_new();
3802
3803     cmd = monitor_parse_command(mon, cmdline, qdict);
3804     if (!cmd)
3805         goto out;
3806
3807     if (monitor_handler_is_async(cmd)) {
3808         user_async_cmd_handler(mon, cmd, qdict);
3809     } else if (monitor_handler_ported(cmd)) {
3810         monitor_call_handler(mon, cmd, qdict);
3811     } else {
3812         cmd->mhandler.cmd(mon, qdict);
3813     }
3814
3815 out:
3816     QDECREF(qdict);
3817 }
3818
3819 static void cmd_completion(const char *name, const char *list)
3820 {
3821     const char *p, *pstart;
3822     char cmd[128];
3823     int len;
3824
3825     p = list;
3826     for(;;) {
3827         pstart = p;
3828         p = strchr(p, '|');
3829         if (!p)
3830             p = pstart + strlen(pstart);
3831         len = p - pstart;
3832         if (len > sizeof(cmd) - 2)
3833             len = sizeof(cmd) - 2;
3834         memcpy(cmd, pstart, len);
3835         cmd[len] = '\0';
3836         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3837             readline_add_completion(cur_mon->rs, cmd);
3838         }
3839         if (*p == '\0')
3840             break;
3841         p++;
3842     }
3843 }
3844
3845 static void file_completion(const char *input)
3846 {
3847     DIR *ffs;
3848     struct dirent *d;
3849     char path[1024];
3850     char file[1024], file_prefix[1024];
3851     int input_path_len;
3852     const char *p;
3853
3854     p = strrchr(input, '/');
3855     if (!p) {
3856         input_path_len = 0;
3857         pstrcpy(file_prefix, sizeof(file_prefix), input);
3858         pstrcpy(path, sizeof(path), ".");
3859     } else {
3860         input_path_len = p - input + 1;
3861         memcpy(path, input, input_path_len);
3862         if (input_path_len > sizeof(path) - 1)
3863             input_path_len = sizeof(path) - 1;
3864         path[input_path_len] = '\0';
3865         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3866     }
3867 #ifdef DEBUG_COMPLETION
3868     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3869                    input, path, file_prefix);
3870 #endif
3871     ffs = opendir(path);
3872     if (!ffs)
3873         return;
3874     for(;;) {
3875         struct stat sb;
3876         d = readdir(ffs);
3877         if (!d)
3878             break;
3879         if (strstart(d->d_name, file_prefix, NULL)) {
3880             memcpy(file, input, input_path_len);
3881             if (input_path_len < sizeof(file))
3882                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
3883                         d->d_name);
3884             /* stat the file to find out if it's a directory.
3885              * In that case add a slash to speed up typing long paths
3886              */
3887             stat(file, &sb);
3888             if(S_ISDIR(sb.st_mode))
3889                 pstrcat(file, sizeof(file), "/");
3890             readline_add_completion(cur_mon->rs, file);
3891         }
3892     }
3893     closedir(ffs);
3894 }
3895
3896 static void block_completion_it(void *opaque, BlockDriverState *bs)
3897 {
3898     const char *name = bdrv_get_device_name(bs);
3899     const char *input = opaque;
3900
3901     if (input[0] == '\0' ||
3902         !strncmp(name, (char *)input, strlen(input))) {
3903         readline_add_completion(cur_mon->rs, name);
3904     }
3905 }
3906
3907 /* NOTE: this parser is an approximate form of the real command parser */
3908 static void parse_cmdline(const char *cmdline,
3909                          int *pnb_args, char **args)
3910 {
3911     const char *p;
3912     int nb_args, ret;
3913     char buf[1024];
3914
3915     p = cmdline;
3916     nb_args = 0;
3917     for(;;) {
3918         while (qemu_isspace(*p))
3919             p++;
3920         if (*p == '\0')
3921             break;
3922         if (nb_args >= MAX_ARGS)
3923             break;
3924         ret = get_str(buf, sizeof(buf), &p);
3925         args[nb_args] = qemu_strdup(buf);
3926         nb_args++;
3927         if (ret < 0)
3928             break;
3929     }
3930     *pnb_args = nb_args;
3931 }
3932
3933 static const char *next_arg_type(const char *typestr)
3934 {
3935     const char *p = strchr(typestr, ':');
3936     return (p != NULL ? ++p : typestr);
3937 }
3938
3939 static void monitor_find_completion(const char *cmdline)
3940 {
3941     const char *cmdname;
3942     char *args[MAX_ARGS];
3943     int nb_args, i, len;
3944     const char *ptype, *str;
3945     const mon_cmd_t *cmd;
3946     const KeyDef *key;
3947
3948     parse_cmdline(cmdline, &nb_args, args);
3949 #ifdef DEBUG_COMPLETION
3950     for(i = 0; i < nb_args; i++) {
3951         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
3952     }
3953 #endif
3954
3955     /* if the line ends with a space, it means we want to complete the
3956        next arg */
3957     len = strlen(cmdline);
3958     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
3959         if (nb_args >= MAX_ARGS) {
3960             goto cleanup;
3961         }
3962         args[nb_args++] = qemu_strdup("");
3963     }
3964     if (nb_args <= 1) {
3965         /* command completion */
3966         if (nb_args == 0)
3967             cmdname = "";
3968         else
3969             cmdname = args[0];
3970         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
3971         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
3972             cmd_completion(cmdname, cmd->name);
3973         }
3974     } else {
3975         /* find the command */
3976         for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
3977             if (compare_cmd(args[0], cmd->name)) {
3978                 break;
3979             }
3980         }
3981         if (!cmd->name) {
3982             goto cleanup;
3983         }
3984
3985         ptype = next_arg_type(cmd->args_type);
3986         for(i = 0; i < nb_args - 2; i++) {
3987             if (*ptype != '\0') {
3988                 ptype = next_arg_type(ptype);
3989                 while (*ptype == '?')
3990                     ptype = next_arg_type(ptype);
3991             }
3992         }
3993         str = args[nb_args - 1];
3994         if (*ptype == '-' && ptype[1] != '\0') {
3995             ptype = next_arg_type(ptype);
3996         }
3997         switch(*ptype) {
3998         case 'F':
3999             /* file completion */
4000             readline_set_completion_index(cur_mon->rs, strlen(str));
4001             file_completion(str);
4002             break;
4003         case 'B':
4004             /* block device name completion */
4005             readline_set_completion_index(cur_mon->rs, strlen(str));
4006             bdrv_iterate(block_completion_it, (void *)str);
4007             break;
4008         case 's':
4009             /* XXX: more generic ? */
4010             if (!strcmp(cmd->name, "info")) {
4011                 readline_set_completion_index(cur_mon->rs, strlen(str));
4012                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
4013                     cmd_completion(str, cmd->name);
4014                 }
4015             } else if (!strcmp(cmd->name, "sendkey")) {
4016                 char *sep = strrchr(str, '-');
4017                 if (sep)
4018                     str = sep + 1;
4019                 readline_set_completion_index(cur_mon->rs, strlen(str));
4020                 for(key = key_defs; key->name != NULL; key++) {
4021                     cmd_completion(str, key->name);
4022                 }
4023             } else if (!strcmp(cmd->name, "help|?")) {
4024                 readline_set_completion_index(cur_mon->rs, strlen(str));
4025                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4026                     cmd_completion(str, cmd->name);
4027                 }
4028             }
4029             break;
4030         default:
4031             break;
4032         }
4033     }
4034
4035 cleanup:
4036     for (i = 0; i < nb_args; i++) {
4037         qemu_free(args[i]);
4038     }
4039 }
4040
4041 static int monitor_can_read(void *opaque)
4042 {
4043     Monitor *mon = opaque;
4044
4045     return (mon->suspend_cnt == 0) ? 1 : 0;
4046 }
4047
4048 static int invalid_qmp_mode(const Monitor *mon, const char *cmd_name)
4049 {
4050     int is_cap = compare_cmd(cmd_name, "qmp_capabilities");
4051     return (qmp_cmd_mode(mon) ? is_cap : !is_cap);
4052 }
4053
4054 /*
4055  * Argument validation rules:
4056  *
4057  * 1. The argument must exist in cmd_args qdict
4058  * 2. The argument type must be the expected one
4059  *
4060  * Special case: If the argument doesn't exist in cmd_args and
4061  *               the QMP_ACCEPT_UNKNOWNS flag is set, then the
4062  *               checking is skipped for it.
4063  */
4064 static int check_client_args_type(const QDict *client_args,
4065                                   const QDict *cmd_args, int flags)
4066 {
4067     const QDictEntry *ent;
4068
4069     for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
4070         QObject *obj;
4071         QString *arg_type;
4072         const QObject *client_arg = qdict_entry_value(ent);
4073         const char *client_arg_name = qdict_entry_key(ent);
4074
4075         obj = qdict_get(cmd_args, client_arg_name);
4076         if (!obj) {
4077             if (flags & QMP_ACCEPT_UNKNOWNS) {
4078                 /* handler accepts unknowns */
4079                 continue;
4080             }
4081             /* client arg doesn't exist */
4082             qerror_report(QERR_INVALID_PARAMETER, client_arg_name);
4083             return -1;
4084         }
4085
4086         arg_type = qobject_to_qstring(obj);
4087         assert(arg_type != NULL);
4088
4089         /* check if argument's type is correct */
4090         switch (qstring_get_str(arg_type)[0]) {
4091         case 'F':
4092         case 'B':
4093         case 's':
4094             if (qobject_type(client_arg) != QTYPE_QSTRING) {
4095                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4096                               "string");
4097                 return -1;
4098             }
4099         break;
4100         case 'i':
4101         case 'l':
4102         case 'M':
4103             if (qobject_type(client_arg) != QTYPE_QINT) {
4104                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4105                               "int");
4106                 return -1;
4107             }
4108             break;
4109         case 'f':
4110         case 'T':
4111             if (qobject_type(client_arg) != QTYPE_QINT &&
4112                 qobject_type(client_arg) != QTYPE_QFLOAT) {
4113                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4114                               "number");
4115                return -1;
4116             }
4117             break;
4118         case 'b':
4119         case '-':
4120             if (qobject_type(client_arg) != QTYPE_QBOOL) {
4121                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4122                               "bool");
4123                return -1;
4124             }
4125             break;
4126         case 'O':
4127             assert(flags & QMP_ACCEPT_UNKNOWNS);
4128             break;
4129         case '/':
4130         case '.':
4131             /*
4132              * These types are not supported by QMP and thus are not
4133              * handled here. Fall through.
4134              */
4135         default:
4136             abort();
4137         }
4138     }
4139
4140     return 0;
4141 }
4142
4143 /*
4144  * - Check if the client has passed all mandatory args
4145  * - Set special flags for argument validation
4146  */
4147 static int check_mandatory_args(const QDict *cmd_args,
4148                                 const QDict *client_args, int *flags)
4149 {
4150     const QDictEntry *ent;
4151
4152     for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
4153         const char *cmd_arg_name = qdict_entry_key(ent);
4154         QString *type = qobject_to_qstring(qdict_entry_value(ent));
4155         assert(type != NULL);
4156
4157         if (qstring_get_str(type)[0] == 'O') {
4158             assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
4159             *flags |= QMP_ACCEPT_UNKNOWNS;
4160         } else if (qstring_get_str(type)[0] != '-' &&
4161                    qstring_get_str(type)[1] != '?' &&
4162                    !qdict_haskey(client_args, cmd_arg_name)) {
4163             qerror_report(QERR_MISSING_PARAMETER, cmd_arg_name);
4164             return -1;
4165         }
4166     }
4167
4168     return 0;
4169 }
4170
4171 static QDict *qdict_from_args_type(const char *args_type)
4172 {
4173     int i;
4174     QDict *qdict;
4175     QString *key, *type, *cur_qs;
4176
4177     assert(args_type != NULL);
4178
4179     qdict = qdict_new();
4180
4181     if (args_type == NULL || args_type[0] == '\0') {
4182         /* no args, empty qdict */
4183         goto out;
4184     }
4185
4186     key = qstring_new();
4187     type = qstring_new();
4188
4189     cur_qs = key;
4190
4191     for (i = 0;; i++) {
4192         switch (args_type[i]) {
4193             case ',':
4194             case '\0':
4195                 qdict_put(qdict, qstring_get_str(key), type);
4196                 QDECREF(key);
4197                 if (args_type[i] == '\0') {
4198                     goto out;
4199                 }
4200                 type = qstring_new(); /* qdict has ref */
4201                 cur_qs = key = qstring_new();
4202                 break;
4203             case ':':
4204                 cur_qs = type;
4205                 break;
4206             default:
4207                 qstring_append_chr(cur_qs, args_type[i]);
4208                 break;
4209         }
4210     }
4211
4212 out:
4213     return qdict;
4214 }
4215
4216 /*
4217  * Client argument checking rules:
4218  *
4219  * 1. Client must provide all mandatory arguments
4220  * 2. Each argument provided by the client must be expected
4221  * 3. Each argument provided by the client must have the type expected
4222  *    by the command
4223  */
4224 static int qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args)
4225 {
4226     int flags, err;
4227     QDict *cmd_args;
4228
4229     cmd_args = qdict_from_args_type(cmd->args_type);
4230
4231     flags = 0;
4232     err = check_mandatory_args(cmd_args, client_args, &flags);
4233     if (err) {
4234         goto out;
4235     }
4236
4237     err = check_client_args_type(client_args, cmd_args, flags);
4238
4239 out:
4240     QDECREF(cmd_args);
4241     return err;
4242 }
4243
4244 /*
4245  * Input object checking rules
4246  *
4247  * 1. Input object must be a dict
4248  * 2. The "execute" key must exist
4249  * 3. The "execute" key must be a string
4250  * 4. If the "arguments" key exists, it must be a dict
4251  * 5. If the "id" key exists, it can be anything (ie. json-value)
4252  * 6. Any argument not listed above is considered invalid
4253  */
4254 static QDict *qmp_check_input_obj(QObject *input_obj)
4255 {
4256     const QDictEntry *ent;
4257     int has_exec_key = 0;
4258     QDict *input_dict;
4259
4260     if (qobject_type(input_obj) != QTYPE_QDICT) {
4261         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "object");
4262         return NULL;
4263     }
4264
4265     input_dict = qobject_to_qdict(input_obj);
4266
4267     for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
4268         const char *arg_name = qdict_entry_key(ent);
4269         const QObject *arg_obj = qdict_entry_value(ent);
4270
4271         if (!strcmp(arg_name, "execute")) {
4272             if (qobject_type(arg_obj) != QTYPE_QSTRING) {
4273                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute",
4274                               "string");
4275                 return NULL;
4276             }
4277             has_exec_key = 1;
4278         } else if (!strcmp(arg_name, "arguments")) {
4279             if (qobject_type(arg_obj) != QTYPE_QDICT) {
4280                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "arguments",
4281                               "object");
4282                 return NULL;
4283             }
4284         } else if (!strcmp(arg_name, "id")) {
4285             /* FIXME: check duplicated IDs for async commands */
4286         } else {
4287             qerror_report(QERR_QMP_EXTRA_MEMBER, arg_name);
4288             return NULL;
4289         }
4290     }
4291
4292     if (!has_exec_key) {
4293         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4294         return NULL;
4295     }
4296
4297     return input_dict;
4298 }
4299
4300 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4301 {
4302     int err;
4303     QObject *obj;
4304     QDict *input, *args;
4305     const mon_cmd_t *cmd;
4306     Monitor *mon = cur_mon;
4307     const char *cmd_name, *info_item;
4308
4309     args = input = NULL;
4310
4311     obj = json_parser_parse(tokens, NULL);
4312     if (!obj) {
4313         // FIXME: should be triggered in json_parser_parse()
4314         qerror_report(QERR_JSON_PARSING);
4315         goto err_out;
4316     }
4317
4318     input = qmp_check_input_obj(obj);
4319     if (!input) {
4320         qobject_decref(obj);
4321         goto err_out;
4322     }
4323
4324     mon->mc->id = qdict_get(input, "id");
4325     qobject_incref(mon->mc->id);
4326
4327     cmd_name = qdict_get_str(input, "execute");
4328     if (invalid_qmp_mode(mon, cmd_name)) {
4329         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4330         goto err_out;
4331     }
4332
4333     /*
4334      * XXX: We need this special case until we get info handlers
4335      * converted into 'query-' commands
4336      */
4337     if (compare_cmd(cmd_name, "info")) {
4338         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4339         goto err_out;
4340     } else if (strstart(cmd_name, "query-", &info_item)) {
4341         cmd = monitor_find_command("info");
4342         qdict_put_obj(input, "arguments",
4343                       qobject_from_jsonf("{ 'item': %s }", info_item));
4344     } else {
4345         cmd = monitor_find_command(cmd_name);
4346         if (!cmd || !monitor_handler_ported(cmd)
4347             || monitor_cmd_user_only(cmd)) {
4348             qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4349             goto err_out;
4350         }
4351     }
4352
4353     obj = qdict_get(input, "arguments");
4354     if (!obj) {
4355         args = qdict_new();
4356     } else {
4357         args = qobject_to_qdict(obj);
4358         QINCREF(args);
4359     }
4360
4361     err = qmp_check_client_args(cmd, args);
4362     if (err < 0) {
4363         goto err_out;
4364     }
4365
4366     if (monitor_handler_is_async(cmd)) {
4367         err = qmp_async_cmd_handler(mon, cmd, args);
4368         if (err) {
4369             /* emit the error response */
4370             goto err_out;
4371         }
4372     } else {
4373         monitor_call_handler(mon, cmd, args);
4374     }
4375
4376     goto out;
4377
4378 err_out:
4379     monitor_protocol_emitter(mon, NULL);
4380 out:
4381     QDECREF(input);
4382     QDECREF(args);
4383 }
4384
4385 /**
4386  * monitor_control_read(): Read and handle QMP input
4387  */
4388 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4389 {
4390     Monitor *old_mon = cur_mon;
4391
4392     cur_mon = opaque;
4393
4394     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4395
4396     cur_mon = old_mon;
4397 }
4398
4399 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4400 {
4401     Monitor *old_mon = cur_mon;
4402     int i;
4403
4404     cur_mon = opaque;
4405
4406     if (cur_mon->rs) {
4407         for (i = 0; i < size; i++)
4408             readline_handle_byte(cur_mon->rs, buf[i]);
4409     } else {
4410         if (size == 0 || buf[size - 1] != 0)
4411             monitor_printf(cur_mon, "corrupted command\n");
4412         else
4413             handle_user_command(cur_mon, (char *)buf);
4414     }
4415
4416     cur_mon = old_mon;
4417 }
4418
4419 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4420 {
4421     monitor_suspend(mon);
4422     handle_user_command(mon, cmdline);
4423     monitor_resume(mon);
4424 }
4425
4426 int monitor_suspend(Monitor *mon)
4427 {
4428     if (!mon->rs)
4429         return -ENOTTY;
4430     mon->suspend_cnt++;
4431     return 0;
4432 }
4433
4434 void monitor_resume(Monitor *mon)
4435 {
4436     if (!mon->rs)
4437         return;
4438     if (--mon->suspend_cnt == 0)
4439         readline_show_prompt(mon->rs);
4440 }
4441
4442 static QObject *get_qmp_greeting(void)
4443 {
4444     QObject *ver;
4445
4446     do_info_version(NULL, &ver);
4447     return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
4448 }
4449
4450 /**
4451  * monitor_control_event(): Print QMP gretting
4452  */
4453 static void monitor_control_event(void *opaque, int event)
4454 {
4455     QObject *data;
4456     Monitor *mon = opaque;
4457
4458     switch (event) {
4459     case CHR_EVENT_OPENED:
4460         mon->mc->command_mode = 0;
4461         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4462         data = get_qmp_greeting();
4463         monitor_json_emitter(mon, data);
4464         qobject_decref(data);
4465         break;
4466     case CHR_EVENT_CLOSED:
4467         json_message_parser_destroy(&mon->mc->parser);
4468         break;
4469     }
4470 }
4471
4472 static void monitor_event(void *opaque, int event)
4473 {
4474     Monitor *mon = opaque;
4475
4476     switch (event) {
4477     case CHR_EVENT_MUX_IN:
4478         mon->mux_out = 0;
4479         if (mon->reset_seen) {
4480             readline_restart(mon->rs);
4481             monitor_resume(mon);
4482             monitor_flush(mon);
4483         } else {
4484             mon->suspend_cnt = 0;
4485         }
4486         break;
4487
4488     case CHR_EVENT_MUX_OUT:
4489         if (mon->reset_seen) {
4490             if (mon->suspend_cnt == 0) {
4491                 monitor_printf(mon, "\n");
4492             }
4493             monitor_flush(mon);
4494             monitor_suspend(mon);
4495         } else {
4496             mon->suspend_cnt++;
4497         }
4498         mon->mux_out = 1;
4499         break;
4500
4501     case CHR_EVENT_OPENED:
4502         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4503                        "information\n", QEMU_VERSION);
4504         if (!mon->mux_out) {
4505             readline_show_prompt(mon->rs);
4506         }
4507         mon->reset_seen = 1;
4508         break;
4509     }
4510 }
4511
4512
4513 /*
4514  * Local variables:
4515  *  c-indent-level: 4
4516  *  c-basic-offset: 4
4517  *  tab-width: 8
4518  * End:
4519  */
4520
4521 void monitor_init(CharDriverState *chr, int flags)
4522 {
4523     static int is_first_init = 1;
4524     Monitor *mon;
4525
4526     if (is_first_init) {
4527         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4528         is_first_init = 0;
4529     }
4530
4531     mon = qemu_mallocz(sizeof(*mon));
4532
4533     mon->chr = chr;
4534     mon->flags = flags;
4535     if (flags & MONITOR_USE_READLINE) {
4536         mon->rs = readline_init(mon, monitor_find_completion);
4537         monitor_read_command(mon, 0);
4538     }
4539
4540     if (monitor_ctrl_mode(mon)) {
4541         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4542         /* Control mode requires special handlers */
4543         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4544                               monitor_control_event, mon);
4545     } else {
4546         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4547                               monitor_event, mon);
4548     }
4549
4550     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4551     if (!default_mon || (flags & MONITOR_IS_DEFAULT))
4552         default_mon = mon;
4553 }
4554
4555 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4556 {
4557     BlockDriverState *bs = opaque;
4558     int ret = 0;
4559
4560     if (bdrv_set_key(bs, password) != 0) {
4561         monitor_printf(mon, "invalid password\n");
4562         ret = -EPERM;
4563     }
4564     if (mon->password_completion_cb)
4565         mon->password_completion_cb(mon->password_opaque, ret);
4566
4567     monitor_read_command(mon, 1);
4568 }
4569
4570 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4571                                 BlockDriverCompletionFunc *completion_cb,
4572                                 void *opaque)
4573 {
4574     int err;
4575
4576     if (!bdrv_key_required(bs)) {
4577         if (completion_cb)
4578             completion_cb(opaque, 0);
4579         return 0;
4580     }
4581
4582     if (monitor_ctrl_mode(mon)) {
4583         qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4584         return -1;
4585     }
4586
4587     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4588                    bdrv_get_encrypted_filename(bs));
4589
4590     mon->password_completion_cb = completion_cb;
4591     mon->password_opaque = opaque;
4592
4593     err = monitor_read_password(mon, bdrv_password_cb, bs);
4594
4595     if (err && completion_cb)
4596         completion_cb(opaque, err);
4597
4598     return err;
4599 }