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  * 'o'          octets (aka bytes)
  82  *              user mode accepts an optional T, t, G, g, M, m, K, k
  83  *              suffix, which multiplies the value by 2^40 for
  84  *              suffixes T and t, 2^30 for suffixes G and g, 2^20 for
  85  *              M and m, 2^10 for K and k
  86  * 'f'          double
  87  *              user mode accepts an optional G, g, M, m, K, k suffix,
  88  *              which multiplies the value by 2^30 for suffixes G and
  89  *              g, 2^20 for M and m, 2^10 for K and k
  90  * 'T'          double
  91  *              user mode accepts an optional ms, us, ns suffix,
  92  *              which divides the value by 1e3, 1e6, 1e9, respectively
  93  * '/'          optional gdb-like print format (like "/10x")
  94  *
  95  * '?'          optional type (for all types, except '/')
  96  * '.'          other form of optional type (for 'i' and 'l')
  97  * 'b'          boolean
  98  *              user mode accepts "on" or "off"
  99  * '-'          optional parameter (eg. '-f')
 100  *
 101  */
 102
 103 typedef struct MonitorCompletionData MonitorCompletionData;
 104 struct MonitorCompletionData {
 105     Monitor *mon;
 106     void (*user_print)(Monitor *mon, const QObject *data);
 107 };
 108
 109 typedef struct mon_cmd_t {
 110     const char *name;
 111     const char *args_type;
 112     const char *params;
 113     const char *help;
 114     void (*user_print)(Monitor *mon, const QObject *data);
 115     union {
 116         void (*info)(Monitor *mon);
 117         void (*info_new)(Monitor *mon, QObject **ret_data);
 118         int  (*info_async)(Monitor *mon, MonitorCompletion *cb, void *opaque);
 119         void (*cmd)(Monitor *mon, const QDict *qdict);
 120         int  (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
 121         int  (*cmd_async)(Monitor *mon, const QDict *params,
 122                           MonitorCompletion *cb, void *opaque);
 123     } mhandler;
 124     int flags;
 125 } mon_cmd_t;
 126
 127 /* file descriptors passed via SCM_RIGHTS */
 128 typedef struct mon_fd_t mon_fd_t;
 129 struct mon_fd_t {
 130     char *name;
 131     int fd;
 132     QLIST_ENTRY(mon_fd_t) next;
 133 };
 134
 135 typedef struct MonitorControl {
 136     QObject *id;
 137     JSONMessageParser parser;
 138     int command_mode;
 139 } MonitorControl;
 140
 141 struct Monitor {
 142     CharDriverState *chr;
 143     int mux_out;
 144     int reset_seen;
 145     int flags;
 146     int suspend_cnt;
 147     uint8_t outbuf[1024];
 148     int outbuf_index;
 149     ReadLineState *rs;
 150     MonitorControl *mc;
 151     CPUState *mon_cpu;
 152     BlockDriverCompletionFunc *password_completion_cb;
 153     void *password_opaque;
 154 #ifdef CONFIG_DEBUG_MONITOR
 155     int print_calls_nr;
 156 #endif
 157     QError *error;
 158     QLIST_HEAD(,mon_fd_t) fds;
 159     QLIST_ENTRY(Monitor) entry;
 160 };
 161
 162 #ifdef CONFIG_DEBUG_MONITOR
 163 #define MON_DEBUG(fmt, ...) do {    \
 164     fprintf(stderr, "Monitor: ");       \
 165     fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
 166
 167 static inline void mon_print_count_inc(Monitor *mon)
 168 {
 169     mon->print_calls_nr++;
 170 }
 171
 172 static inline void mon_print_count_init(Monitor *mon)
 173 {
 174     mon->print_calls_nr = 0;
 175 }
 176
 177 static inline int mon_print_count_get(const Monitor *mon)
 178 {
 179     return mon->print_calls_nr;
 180 }
 181
 182 #else /* !CONFIG_DEBUG_MONITOR */
 183 #define MON_DEBUG(fmt, ...) do { } while (0)
 184 static inline void mon_print_count_inc(Monitor *mon) { }
 185 static inline void mon_print_count_init(Monitor *mon) { }
 186 static inline int mon_print_count_get(const Monitor *mon) { return 0; }
 187 #endif /* CONFIG_DEBUG_MONITOR */
 188
 189 /* QMP checker flags */
 190 #define QMP_ACCEPT_UNKNOWNS 1
 191
 192 static QLIST_HEAD(mon_list, Monitor) mon_list;
 193
 194 static const mon_cmd_t mon_cmds[];
 195 static const mon_cmd_t info_cmds[];
 196
 197 static const mon_cmd_t qmp_cmds[];
 198 static const mon_cmd_t qmp_query_cmds[];
 199
 200 Monitor *cur_mon;
 201 Monitor *default_mon;
 202
 203 static void monitor_command_cb(Monitor *mon, const char *cmdline,
 204                                void *opaque);
 205
 206 static inline int qmp_cmd_mode(const Monitor *mon)
 207 {
 208     return (mon->mc ? mon->mc->command_mode : 0);
 209 }
 210
 211 /* Return true if in control mode, false otherwise */
 212 static inline int monitor_ctrl_mode(const Monitor *mon)
 213 {
 214     return (mon->flags & MONITOR_USE_CONTROL);
 215 }
 216
 217 /* Return non-zero iff we have a current monitor, and it is in QMP mode.  */
 218 int monitor_cur_is_qmp(void)
 219 {
 220     return cur_mon && monitor_ctrl_mode(cur_mon);
 221 }
 222
 223 static void monitor_read_command(Monitor *mon, int show_prompt)
 224 {
 225     if (!mon->rs)
 226         return;
 227
 228     readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
 229     if (show_prompt)
 230         readline_show_prompt(mon->rs);
 231 }
 232
 233 static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
 234                                  void *opaque)
 235 {
 236     if (monitor_ctrl_mode(mon)) {
 237         qerror_report(QERR_MISSING_PARAMETER, "password");
 238         return -EINVAL;
 239     } else if (mon->rs) {
 240         readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
 241         /* prompt is printed on return from the command handler */
 242         return 0;
 243     } else {
 244         monitor_printf(mon, "terminal does not support password prompting\n");
 245         return -ENOTTY;
 246     }
 247 }
 248
 249 void monitor_flush(Monitor *mon)
 250 {
 251     if (mon && mon->outbuf_index != 0 && !mon->mux_out) {
 252         qemu_chr_write(mon->chr, mon->outbuf, mon->outbuf_index);
 253         mon->outbuf_index = 0;
 254     }
 255 }
 256
 257 /* flush at every end of line or if the buffer is full */
 258 static void monitor_puts(Monitor *mon, const char *str)
 259 {
 260     char c;
 261
 262     for(;;) {
 263         c = *str++;
 264         if (c == '\0')
 265             break;
 266         if (c == '\n')
 267             mon->outbuf[mon->outbuf_index++] = '\r';
 268         mon->outbuf[mon->outbuf_index++] = c;
 269         if (mon->outbuf_index >= (sizeof(mon->outbuf) - 1)
 270             || c == '\n')
 271             monitor_flush(mon);
 272     }
 273 }
 274
 275 void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
 276 {
 277     char buf[4096];
 278
 279     if (!mon)
 280         return;
 281
 282     mon_print_count_inc(mon);
 283
 284     if (monitor_ctrl_mode(mon)) {
 285         return;
 286     }
 287
 288     vsnprintf(buf, sizeof(buf), fmt, ap);
 289     monitor_puts(mon, buf);
 290 }
 291
 292 void monitor_printf(Monitor *mon, const char *fmt, ...)
 293 {
 294     va_list ap;
 295     va_start(ap, fmt);
 296     monitor_vprintf(mon, fmt, ap);
 297     va_end(ap);
 298 }
 299
 300 void monitor_print_filename(Monitor *mon, const char *filename)
 301 {
 302     int i;
 303
 304     for (i = 0; filename[i]; i++) {
 305         switch (filename[i]) {
 306         case ' ':
 307         case '"':
 308         case '\\':
 309             monitor_printf(mon, "\\%c", filename[i]);
 310             break;
 311         case '\t':
 312             monitor_printf(mon, "\\t");
 313             break;
 314         case '\r':
 315             monitor_printf(mon, "\\r");
 316             break;
 317         case '\n':
 318             monitor_printf(mon, "\\n");
 319             break;
 320         default:
 321             monitor_printf(mon, "%c", filename[i]);
 322             break;
 323         }
 324     }
 325 }
 326
 327 static int GCC_FMT_ATTR(2, 3) monitor_fprintf(FILE *stream,
 328                                               const char *fmt, ...)
 329 {
 330     va_list ap;
 331     va_start(ap, fmt);
 332     monitor_vprintf((Monitor *)stream, fmt, ap);
 333     va_end(ap);
 334     return 0;
 335 }
 336
 337 static void monitor_user_noop(Monitor *mon, const QObject *data) { }
 338
 339 static inline int handler_is_qobject(const mon_cmd_t *cmd)
 340 {
 341     return cmd->user_print != NULL;
 342 }
 343
 344 static inline bool handler_is_async(const mon_cmd_t *cmd)
 345 {
 346     return cmd->flags & MONITOR_CMD_ASYNC;
 347 }
 348
 349 static inline int monitor_has_error(const Monitor *mon)
 350 {
 351     return mon->error != NULL;
 352 }
 353
 354 static void monitor_json_emitter(Monitor *mon, const QObject *data)
 355 {
 356     QString *json;
 357
 358     if (mon->flags & MONITOR_USE_PRETTY)
 359         json = qobject_to_json_pretty(data);
 360     else
 361         json = qobject_to_json(data);
 362     assert(json != NULL);
 363
 364     qstring_append_chr(json, '\n');
 365     monitor_puts(mon, qstring_get_str(json));
 366
 367     QDECREF(json);
 368 }
 369
 370 static void monitor_protocol_emitter(Monitor *mon, QObject *data)
 371 {
 372     QDict *qmp;
 373
 374     qmp = qdict_new();
 375
 376     if (!monitor_has_error(mon)) {
 377         /* success response */
 378         if (data) {
 379             qobject_incref(data);
 380             qdict_put_obj(qmp, "return", data);
 381         } else {
 382             /* return an empty QDict by default */
 383             qdict_put(qmp, "return", qdict_new());
 384         }
 385     } else {
 386         /* error response */
 387         qdict_put(mon->error->error, "desc", qerror_human(mon->error));
 388         qdict_put(qmp, "error", mon->error->error);
 389         QINCREF(mon->error->error);
 390         QDECREF(mon->error);
 391         mon->error = NULL;
 392     }
 393
 394     if (mon->mc->id) {
 395         qdict_put_obj(qmp, "id", mon->mc->id);
 396         mon->mc->id = NULL;
 397     }
 398
 399     monitor_json_emitter(mon, QOBJECT(qmp));
 400     QDECREF(qmp);
 401 }
 402
 403 static void timestamp_put(QDict *qdict)
 404 {
 405     int err;
 406     QObject *obj;
 407     qemu_timeval tv;
 408
 409     err = qemu_gettimeofday(&tv);
 410     if (err < 0)
 411         return;
 412
 413     obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
 414                                 "'microseconds': %" PRId64 " }",
 415                                 (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
 416     qdict_put_obj(qdict, "timestamp", obj);
 417 }
 418
 419 /**
 420  * monitor_protocol_event(): Generate a Monitor event
 421  *
 422  * Event-specific data can be emitted through the (optional) 'data' parameter.
 423  */
 424 void monitor_protocol_event(MonitorEvent event, QObject *data)
 425 {
 426     QDict *qmp;
 427     const char *event_name;
 428     Monitor *mon;
 429
 430     assert(event < QEVENT_MAX);
 431
 432     switch (event) {
 433         case QEVENT_SHUTDOWN:
 434             event_name = "SHUTDOWN";
 435             break;
 436         case QEVENT_RESET:
 437             event_name = "RESET";
 438             break;
 439         case QEVENT_POWERDOWN:
 440             event_name = "POWERDOWN";
 441             break;
 442         case QEVENT_STOP:
 443             event_name = "STOP";
 444             break;
 445         case QEVENT_RESUME:
 446             event_name = "RESUME";
 447             break;
 448         case QEVENT_VNC_CONNECTED:
 449             event_name = "VNC_CONNECTED";
 450             break;
 451         case QEVENT_VNC_INITIALIZED:
 452             event_name = "VNC_INITIALIZED";
 453             break;
 454         case QEVENT_VNC_DISCONNECTED:
 455             event_name = "VNC_DISCONNECTED";
 456             break;
 457         case QEVENT_BLOCK_IO_ERROR:
 458             event_name = "BLOCK_IO_ERROR";
 459             break;
 460         case QEVENT_RTC_CHANGE:
 461             event_name = "RTC_CHANGE";
 462             break;
 463         case QEVENT_WATCHDOG:
 464             event_name = "WATCHDOG";
 465             break;
 466         default:
 467             abort();
 468             break;
 469     }
 470
 471     qmp = qdict_new();
 472     timestamp_put(qmp);
 473     qdict_put(qmp, "event", qstring_from_str(event_name));
 474     if (data) {
 475         qobject_incref(data);
 476         qdict_put_obj(qmp, "data", data);
 477     }
 478
 479     QLIST_FOREACH(mon, &mon_list, entry) {
 480         if (monitor_ctrl_mode(mon) && qmp_cmd_mode(mon)) {
 481             monitor_json_emitter(mon, QOBJECT(qmp));
 482         }
 483     }
 484     QDECREF(qmp);
 485 }
 486
 487 static int do_qmp_capabilities(Monitor *mon, const QDict *params,
 488                                QObject **ret_data)
 489 {
 490     /* Will setup QMP capabilities in the future */
 491     if (monitor_ctrl_mode(mon)) {
 492         mon->mc->command_mode = 1;
 493     }
 494
 495     return 0;
 496 }
 497
 498 static int compare_cmd(const char *name, const char *list)
 499 {
 500     const char *p, *pstart;
 501     int len;
 502     len = strlen(name);
 503     p = list;
 504     for(;;) {
 505         pstart = p;
 506         p = strchr(p, '|');
 507         if (!p)
 508             p = pstart + strlen(pstart);
 509         if ((p - pstart) == len && !memcmp(pstart, name, len))
 510             return 1;
 511         if (*p == '\0')
 512             break;
 513         p++;
 514     }
 515     return 0;
 516 }
 517
 518 static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
 519                           const char *prefix, const char *name)
 520 {
 521     const mon_cmd_t *cmd;
 522
 523     for(cmd = cmds; cmd->name != NULL; cmd++) {
 524         if (!name || !strcmp(name, cmd->name))
 525             monitor_printf(mon, "%s%s %s -- %s\n", prefix, cmd->name,
 526                            cmd->params, cmd->help);
 527     }
 528 }
 529
 530 static void help_cmd(Monitor *mon, const char *name)
 531 {
 532     if (name && !strcmp(name, "info")) {
 533         help_cmd_dump(mon, info_cmds, "info ", NULL);
 534     } else {
 535         help_cmd_dump(mon, mon_cmds, "", name);
 536         if (name && !strcmp(name, "log")) {
 537             const CPULogItem *item;
 538             monitor_printf(mon, "Log items (comma separated):\n");
 539             monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
 540             for(item = cpu_log_items; item->mask != 0; item++) {
 541                 monitor_printf(mon, "%-10s %s\n", item->name, item->help);
 542             }
 543         }
 544     }
 545 }
 546
 547 static void do_help_cmd(Monitor *mon, const QDict *qdict)
 548 {
 549     help_cmd(mon, qdict_get_try_str(qdict, "name"));
 550 }
 551
 552 #ifdef CONFIG_SIMPLE_TRACE
 553 static void do_change_trace_event_state(Monitor *mon, const QDict *qdict)
 554 {
 555     const char *tp_name = qdict_get_str(qdict, "name");
 556     bool new_state = qdict_get_bool(qdict, "option");
 557     int ret = st_change_trace_event_state(tp_name, new_state);
 558
 559     if (!ret) {
 560         monitor_printf(mon, "unknown event name \"%s\"\n", tp_name);
 561     }
 562 }
 563
 564 static void do_trace_file(Monitor *mon, const QDict *qdict)
 565 {
 566     const char *op = qdict_get_try_str(qdict, "op");
 567     const char *arg = qdict_get_try_str(qdict, "arg");
 568
 569     if (!op) {
 570         st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
 571     } else if (!strcmp(op, "on")) {
 572         st_set_trace_file_enabled(true);
 573     } else if (!strcmp(op, "off")) {
 574         st_set_trace_file_enabled(false);
 575     } else if (!strcmp(op, "flush")) {
 576         st_flush_trace_buffer();
 577     } else if (!strcmp(op, "set")) {
 578         if (arg) {
 579             st_set_trace_file(arg);
 580         }
 581     } else {
 582         monitor_printf(mon, "unexpected argument \"%s\"\n", op);
 583         help_cmd(mon, "trace-file");
 584     }
 585 }
 586 #endif
 587
 588 static void user_monitor_complete(void *opaque, QObject *ret_data)
 589 {
 590     MonitorCompletionData *data = (MonitorCompletionData *)opaque;
 591
 592     if (ret_data) {
 593         data->user_print(data->mon, ret_data);
 594     }
 595     monitor_resume(data->mon);
 596     qemu_free(data);
 597 }
 598
 599 static void qmp_monitor_complete(void *opaque, QObject *ret_data)
 600 {
 601     monitor_protocol_emitter(opaque, ret_data);
 602 }
 603
 604 static int qmp_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 605                                  const QDict *params)
 606 {
 607     return cmd->mhandler.cmd_async(mon, params, qmp_monitor_complete, mon);
 608 }
 609
 610 static void qmp_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 611 {
 612     cmd->mhandler.info_async(mon, qmp_monitor_complete, mon);
 613 }
 614
 615 static void user_async_cmd_handler(Monitor *mon, const mon_cmd_t *cmd,
 616                                    const QDict *params)
 617 {
 618     int ret;
 619
 620     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 621     cb_data->mon = mon;
 622     cb_data->user_print = cmd->user_print;
 623     monitor_suspend(mon);
 624     ret = cmd->mhandler.cmd_async(mon, params,
 625                                   user_monitor_complete, cb_data);
 626     if (ret < 0) {
 627         monitor_resume(mon);
 628         qemu_free(cb_data);
 629     }
 630 }
 631
 632 static void user_async_info_handler(Monitor *mon, const mon_cmd_t *cmd)
 633 {
 634     int ret;
 635
 636     MonitorCompletionData *cb_data = qemu_malloc(sizeof(*cb_data));
 637     cb_data->mon = mon;
 638     cb_data->user_print = cmd->user_print;
 639     monitor_suspend(mon);
 640     ret = cmd->mhandler.info_async(mon, user_monitor_complete, cb_data);
 641     if (ret < 0) {
 642         monitor_resume(mon);
 643         qemu_free(cb_data);
 644     }
 645 }
 646
 647 static void do_info(Monitor *mon, const QDict *qdict)
 648 {
 649     const mon_cmd_t *cmd;
 650     const char *item = qdict_get_try_str(qdict, "item");
 651
 652     if (!item) {
 653         goto help;
 654     }
 655
 656     for (cmd = info_cmds; cmd->name != NULL; cmd++) {
 657         if (compare_cmd(item, cmd->name))
 658             break;
 659     }
 660
 661     if (cmd->name == NULL) {
 662         goto help;
 663     }
 664
 665     if (handler_is_async(cmd)) {
 666         user_async_info_handler(mon, cmd);
 667     } else if (handler_is_qobject(cmd)) {
 668         QObject *info_data = NULL;
 669
 670         cmd->mhandler.info_new(mon, &info_data);
 671         if (info_data) {
 672             cmd->user_print(mon, info_data);
 673             qobject_decref(info_data);
 674         }
 675     } else {
 676         cmd->mhandler.info(mon);
 677     }
 678
 679     return;
 680
 681 help:
 682     help_cmd(mon, "info");
 683 }
 684
 685 static void do_info_version_print(Monitor *mon, const QObject *data)
 686 {
 687     QDict *qdict;
 688     QDict *qemu;
 689
 690     qdict = qobject_to_qdict(data);
 691     qemu = qdict_get_qdict(qdict, "qemu");
 692
 693     monitor_printf(mon, "%" PRId64 ".%" PRId64 ".%" PRId64 "%s\n",
 694                   qdict_get_int(qemu, "major"),
 695                   qdict_get_int(qemu, "minor"),
 696                   qdict_get_int(qemu, "micro"),
 697                   qdict_get_str(qdict, "package"));
 698 }
 699
 700 static void do_info_version(Monitor *mon, QObject **ret_data)
 701 {
 702     const char *version = QEMU_VERSION;
 703     int major = 0, minor = 0, micro = 0;
 704     char *tmp;
 705
 706     major = strtol(version, &tmp, 10);
 707     tmp++;
 708     minor = strtol(tmp, &tmp, 10);
 709     tmp++;
 710     micro = strtol(tmp, &tmp, 10);
 711
 712     *ret_data = qobject_from_jsonf("{ 'qemu': { 'major': %d, 'minor': %d, \
 713         'micro': %d }, 'package': %s }", major, minor, micro, QEMU_PKGVERSION);
 714 }
 715
 716 static void do_info_name_print(Monitor *mon, const QObject *data)
 717 {
 718     QDict *qdict;
 719
 720     qdict = qobject_to_qdict(data);
 721     if (qdict_size(qdict) == 0) {
 722         return;
 723     }
 724
 725     monitor_printf(mon, "%s\n", qdict_get_str(qdict, "name"));
 726 }
 727
 728 static void do_info_name(Monitor *mon, QObject **ret_data)
 729 {
 730     *ret_data = qemu_name ? qobject_from_jsonf("{'name': %s }", qemu_name) :
 731                             qobject_from_jsonf("{}");
 732 }
 733
 734 static QObject *get_cmd_dict(const char *name)
 735 {
 736     const char *p;
 737
 738     /* Remove '|' from some commands */
 739     p = strchr(name, '|');
 740     if (p) {
 741         p++;
 742     } else {
 743         p = name;
 744     }
 745
 746     return qobject_from_jsonf("{ 'name': %s }", p);
 747 }
 748
 749 static void do_info_commands(Monitor *mon, QObject **ret_data)
 750 {
 751     QList *cmd_list;
 752     const mon_cmd_t *cmd;
 753
 754     cmd_list = qlist_new();
 755
 756     for (cmd = qmp_cmds; cmd->name != NULL; cmd++) {
 757         qlist_append_obj(cmd_list, get_cmd_dict(cmd->name));
 758     }
 759
 760     for (cmd = qmp_query_cmds; cmd->name != NULL; 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     *ret_data = QOBJECT(cmd_list);
 767 }
 768
 769 static void do_info_uuid_print(Monitor *mon, const QObject *data)
 770 {
 771     monitor_printf(mon, "%s\n", qdict_get_str(qobject_to_qdict(data), "UUID"));
 772 }
 773
 774 static void do_info_uuid(Monitor *mon, QObject **ret_data)
 775 {
 776     char uuid[64];
 777
 778     snprintf(uuid, sizeof(uuid), UUID_FMT, qemu_uuid[0], qemu_uuid[1],
 779                    qemu_uuid[2], qemu_uuid[3], qemu_uuid[4], qemu_uuid[5],
 780                    qemu_uuid[6], qemu_uuid[7], qemu_uuid[8], qemu_uuid[9],
 781                    qemu_uuid[10], qemu_uuid[11], qemu_uuid[12], qemu_uuid[13],
 782                    qemu_uuid[14], qemu_uuid[15]);
 783     *ret_data = qobject_from_jsonf("{ 'UUID': %s }", uuid);
 784 }
 785
 786 /* get the current CPU defined by the user */
 787 static int mon_set_cpu(int cpu_index)
 788 {
 789     CPUState *env;
 790
 791     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 792         if (env->cpu_index == cpu_index) {
 793             cur_mon->mon_cpu = env;
 794             return 0;
 795         }
 796     }
 797     return -1;
 798 }
 799
 800 static CPUState *mon_get_cpu(void)
 801 {
 802     if (!cur_mon->mon_cpu) {
 803         mon_set_cpu(0);
 804     }
 805     cpu_synchronize_state(cur_mon->mon_cpu);
 806     return cur_mon->mon_cpu;
 807 }
 808
 809 static void do_info_registers(Monitor *mon)
 810 {
 811     CPUState *env;
 812     env = mon_get_cpu();
 813 #ifdef TARGET_I386
 814     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 815                    X86_DUMP_FPU);
 816 #else
 817     cpu_dump_state(env, (FILE *)mon, monitor_fprintf,
 818                    0);
 819 #endif
 820 }
 821
 822 static void print_cpu_iter(QObject *obj, void *opaque)
 823 {
 824     QDict *cpu;
 825     int active = ' ';
 826     Monitor *mon = opaque;
 827
 828     assert(qobject_type(obj) == QTYPE_QDICT);
 829     cpu = qobject_to_qdict(obj);
 830
 831     if (qdict_get_bool(cpu, "current")) {
 832         active = '*';
 833     }
 834
 835     monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
 836
 837 #if defined(TARGET_I386)
 838     monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
 839                    (target_ulong) qdict_get_int(cpu, "pc"));
 840 #elif defined(TARGET_PPC)
 841     monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
 842                    (target_long) qdict_get_int(cpu, "nip"));
 843 #elif defined(TARGET_SPARC)
 844     monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
 845                    (target_long) qdict_get_int(cpu, "pc"));
 846     monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
 847                    (target_long) qdict_get_int(cpu, "npc"));
 848 #elif defined(TARGET_MIPS)
 849     monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
 850                    (target_long) qdict_get_int(cpu, "PC"));
 851 #endif
 852
 853     if (qdict_get_bool(cpu, "halted")) {
 854         monitor_printf(mon, " (halted)");
 855     }
 856
 857     monitor_printf(mon, "\n");
 858 }
 859
 860 static void monitor_print_cpus(Monitor *mon, const QObject *data)
 861 {
 862     QList *cpu_list;
 863
 864     assert(qobject_type(data) == QTYPE_QLIST);
 865     cpu_list = qobject_to_qlist(data);
 866     qlist_iter(cpu_list, print_cpu_iter, mon);
 867 }
 868
 869 static void do_info_cpus(Monitor *mon, QObject **ret_data)
 870 {
 871     CPUState *env;
 872     QList *cpu_list;
 873
 874     cpu_list = qlist_new();
 875
 876     /* just to set the default cpu if not already done */
 877     mon_get_cpu();
 878
 879     for(env = first_cpu; env != NULL; env = env->next_cpu) {
 880         QDict *cpu;
 881         QObject *obj;
 882
 883         cpu_synchronize_state(env);
 884
 885         obj = qobject_from_jsonf("{ 'CPU': %d, 'current': %i, 'halted': %i }",
 886                                  env->cpu_index, env == mon->mon_cpu,
 887                                  env->halted);
 888
 889         cpu = qobject_to_qdict(obj);
 890
 891 #if defined(TARGET_I386)
 892         qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
 893 #elif defined(TARGET_PPC)
 894         qdict_put(cpu, "nip", qint_from_int(env->nip));
 895 #elif defined(TARGET_SPARC)
 896         qdict_put(cpu, "pc", qint_from_int(env->pc));
 897         qdict_put(cpu, "npc", qint_from_int(env->npc));
 898 #elif defined(TARGET_MIPS)
 899         qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
 900 #endif
 901
 902         qlist_append(cpu_list, cpu);
 903     }
 904
 905     *ret_data = QOBJECT(cpu_list);
 906 }
 907
 908 static int do_cpu_set(Monitor *mon, const QDict *qdict, QObject **ret_data)
 909 {
 910     int index = qdict_get_int(qdict, "index");
 911     if (mon_set_cpu(index) < 0) {
 912         qerror_report(QERR_INVALID_PARAMETER_VALUE, "index",
 913                       "a CPU number");
 914         return -1;
 915     }
 916     return 0;
 917 }
 918
 919 static void do_info_jit(Monitor *mon)
 920 {
 921     dump_exec_info((FILE *)mon, monitor_fprintf);
 922 }
 923
 924 static void do_info_history(Monitor *mon)
 925 {
 926     int i;
 927     const char *str;
 928
 929     if (!mon->rs)
 930         return;
 931     i = 0;
 932     for(;;) {
 933         str = readline_get_history(mon->rs, i);
 934         if (!str)
 935             break;
 936         monitor_printf(mon, "%d: '%s'\n", i, str);
 937         i++;
 938     }
 939 }
 940
 941 #if defined(TARGET_PPC)
 942 /* XXX: not implemented in other targets */
 943 static void do_info_cpu_stats(Monitor *mon)
 944 {
 945     CPUState *env;
 946
 947     env = mon_get_cpu();
 948     cpu_dump_statistics(env, (FILE *)mon, &monitor_fprintf, 0);
 949 }
 950 #endif
 951
 952 #if defined(CONFIG_SIMPLE_TRACE)
 953 static void do_info_trace(Monitor *mon)
 954 {
 955     st_print_trace((FILE *)mon, &monitor_fprintf);
 956 }
 957
 958 static void do_info_trace_events(Monitor *mon)
 959 {
 960     st_print_trace_events((FILE *)mon, &monitor_fprintf);
 961 }
 962 #endif
 963
 964 /**
 965  * do_quit(): Quit QEMU execution
 966  */
 967 static int do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
 968 {
 969     monitor_suspend(mon);
 970     no_shutdown = 0;
 971     qemu_system_shutdown_request();
 972
 973     return 0;
 974 }
 975
 976 static int change_vnc_password(const char *password)
 977 {
 978     if (vnc_display_password(NULL, password) < 0) {
 979         qerror_report(QERR_SET_PASSWD_FAILED);
 980         return -1;
 981     }
 982
 983     return 0;
 984 }
 985
 986 static void change_vnc_password_cb(Monitor *mon, const char *password,
 987                                    void *opaque)
 988 {
 989     change_vnc_password(password);
 990     monitor_read_command(mon, 1);
 991 }
 992
 993 static int do_change_vnc(Monitor *mon, const char *target, const char *arg)
 994 {
 995     if (strcmp(target, "passwd") == 0 ||
 996         strcmp(target, "password") == 0) {
 997         if (arg) {
 998             char password[9];
 999             strncpy(password, arg, sizeof(password));
1000             password[sizeof(password) - 1] = '\0';
1001             return change_vnc_password(password);
1002         } else {
1003             return monitor_read_password(mon, change_vnc_password_cb, NULL);
1004         }
1005     } else {
1006         if (vnc_display_open(NULL, target) < 0) {
1007             qerror_report(QERR_VNC_SERVER_FAILED, target);
1008             return -1;
1009         }
1010     }
1011
1012     return 0;
1013 }
1014
1015 /**
1016  * do_change(): Change a removable medium, or VNC configuration
1017  */
1018 static int do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
1019 {
1020     const char *device = qdict_get_str(qdict, "device");
1021     const char *target = qdict_get_str(qdict, "target");
1022     const char *arg = qdict_get_try_str(qdict, "arg");
1023     int ret;
1024
1025     if (strcmp(device, "vnc") == 0) {
1026         ret = do_change_vnc(mon, target, arg);
1027     } else {
1028         ret = do_change_block(mon, device, target, arg);
1029     }
1030
1031     return ret;
1032 }
1033
1034 static int do_screen_dump(Monitor *mon, const QDict *qdict, QObject **ret_data)
1035 {
1036     vga_hw_screen_dump(qdict_get_str(qdict, "filename"));
1037     return 0;
1038 }
1039
1040 static void do_logfile(Monitor *mon, const QDict *qdict)
1041 {
1042     cpu_set_log_filename(qdict_get_str(qdict, "filename"));
1043 }
1044
1045 static void do_log(Monitor *mon, const QDict *qdict)
1046 {
1047     int mask;
1048     const char *items = qdict_get_str(qdict, "items");
1049
1050     if (!strcmp(items, "none")) {
1051         mask = 0;
1052     } else {
1053         mask = cpu_str_to_log_mask(items);
1054         if (!mask) {
1055             help_cmd(mon, "log");
1056             return;
1057         }
1058     }
1059     cpu_set_log(mask);
1060 }
1061
1062 static void do_singlestep(Monitor *mon, const QDict *qdict)
1063 {
1064     const char *option = qdict_get_try_str(qdict, "option");
1065     if (!option || !strcmp(option, "on")) {
1066         singlestep = 1;
1067     } else if (!strcmp(option, "off")) {
1068         singlestep = 0;
1069     } else {
1070         monitor_printf(mon, "unexpected option %s\n", option);
1071     }
1072 }
1073
1074 /**
1075  * do_stop(): Stop VM execution
1076  */
1077 static int do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
1078 {
1079     vm_stop(EXCP_INTERRUPT);
1080     return 0;
1081 }
1082
1083 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs);
1084
1085 struct bdrv_iterate_context {
1086     Monitor *mon;
1087     int err;
1088 };
1089
1090 /**
1091  * do_cont(): Resume emulation.
1092  */
1093 static int do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
1094 {
1095     struct bdrv_iterate_context context = { mon, 0 };
1096
1097     if (incoming_expected) {
1098         qerror_report(QERR_MIGRATION_EXPECTED);
1099         return -1;
1100     }
1101     bdrv_iterate(encrypted_bdrv_it, &context);
1102     /* only resume the vm if all keys are set and valid */
1103     if (!context.err) {
1104         vm_start();
1105         return 0;
1106     } else {
1107         return -1;
1108     }
1109 }
1110
1111 static void bdrv_key_cb(void *opaque, int err)
1112 {
1113     Monitor *mon = opaque;
1114
1115     /* another key was set successfully, retry to continue */
1116     if (!err)
1117         do_cont(mon, NULL, NULL);
1118 }
1119
1120 static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
1121 {
1122     struct bdrv_iterate_context *context = opaque;
1123
1124     if (!context->err && bdrv_key_required(bs)) {
1125         context->err = -EBUSY;
1126         monitor_read_bdrv_key_start(context->mon, bs, bdrv_key_cb,
1127                                     context->mon);
1128     }
1129 }
1130
1131 static void do_gdbserver(Monitor *mon, const QDict *qdict)
1132 {
1133     const char *device = qdict_get_try_str(qdict, "device");
1134     if (!device)
1135         device = "tcp::" DEFAULT_GDBSTUB_PORT;
1136     if (gdbserver_start(device) < 0) {
1137         monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
1138                        device);
1139     } else if (strcmp(device, "none") == 0) {
1140         monitor_printf(mon, "Disabled gdbserver\n");
1141     } else {
1142         monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
1143                        device);
1144     }
1145 }
1146
1147 static void do_watchdog_action(Monitor *mon, const QDict *qdict)
1148 {
1149     const char *action = qdict_get_str(qdict, "action");
1150     if (select_watchdog_action(action) == -1) {
1151         monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
1152     }
1153 }
1154
1155 static void monitor_printc(Monitor *mon, int c)
1156 {
1157     monitor_printf(mon, "'");
1158     switch(c) {
1159     case '\'':
1160         monitor_printf(mon, "\\'");
1161         break;
1162     case '\\':
1163         monitor_printf(mon, "\\\\");
1164         break;
1165     case '\n':
1166         monitor_printf(mon, "\\n");
1167         break;
1168     case '\r':
1169         monitor_printf(mon, "\\r");
1170         break;
1171     default:
1172         if (c >= 32 && c <= 126) {
1173             monitor_printf(mon, "%c", c);
1174         } else {
1175             monitor_printf(mon, "\\x%02x", c);
1176         }
1177         break;
1178     }
1179     monitor_printf(mon, "'");
1180 }
1181
1182 static void memory_dump(Monitor *mon, int count, int format, int wsize,
1183                         target_phys_addr_t addr, int is_physical)
1184 {
1185     CPUState *env;
1186     int l, line_size, i, max_digits, len;
1187     uint8_t buf[16];
1188     uint64_t v;
1189
1190     if (format == 'i') {
1191         int flags;
1192         flags = 0;
1193         env = mon_get_cpu();
1194 #ifdef TARGET_I386
1195         if (wsize == 2) {
1196             flags = 1;
1197         } else if (wsize == 4) {
1198             flags = 0;
1199         } else {
1200             /* as default we use the current CS size */
1201             flags = 0;
1202             if (env) {
1203 #ifdef TARGET_X86_64
1204                 if ((env->efer & MSR_EFER_LMA) &&
1205                     (env->segs[R_CS].flags & DESC_L_MASK))
1206                     flags = 2;
1207                 else
1208 #endif
1209                 if (!(env->segs[R_CS].flags & DESC_B_MASK))
1210                     flags = 1;
1211             }
1212         }
1213 #endif
1214         monitor_disas(mon, env, addr, count, is_physical, flags);
1215         return;
1216     }
1217
1218     len = wsize * count;
1219     if (wsize == 1)
1220         line_size = 8;
1221     else
1222         line_size = 16;
1223     max_digits = 0;
1224
1225     switch(format) {
1226     case 'o':
1227         max_digits = (wsize * 8 + 2) / 3;
1228         break;
1229     default:
1230     case 'x':
1231         max_digits = (wsize * 8) / 4;
1232         break;
1233     case 'u':
1234     case 'd':
1235         max_digits = (wsize * 8 * 10 + 32) / 33;
1236         break;
1237     case 'c':
1238         wsize = 1;
1239         break;
1240     }
1241
1242     while (len > 0) {
1243         if (is_physical)
1244             monitor_printf(mon, TARGET_FMT_plx ":", addr);
1245         else
1246             monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
1247         l = len;
1248         if (l > line_size)
1249             l = line_size;
1250         if (is_physical) {
1251             cpu_physical_memory_rw(addr, buf, l, 0);
1252         } else {
1253             env = mon_get_cpu();
1254             if (cpu_memory_rw_debug(env, addr, buf, l, 0) < 0) {
1255                 monitor_printf(mon, " Cannot access memory\n");
1256                 break;
1257             }
1258         }
1259         i = 0;
1260         while (i < l) {
1261             switch(wsize) {
1262             default:
1263             case 1:
1264                 v = ldub_raw(buf + i);
1265                 break;
1266             case 2:
1267                 v = lduw_raw(buf + i);
1268                 break;
1269             case 4:
1270                 v = (uint32_t)ldl_raw(buf + i);
1271                 break;
1272             case 8:
1273                 v = ldq_raw(buf + i);
1274                 break;
1275             }
1276             monitor_printf(mon, " ");
1277             switch(format) {
1278             case 'o':
1279                 monitor_printf(mon, "%#*" PRIo64, max_digits, v);
1280                 break;
1281             case 'x':
1282                 monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
1283                 break;
1284             case 'u':
1285                 monitor_printf(mon, "%*" PRIu64, max_digits, v);
1286                 break;
1287             case 'd':
1288                 monitor_printf(mon, "%*" PRId64, max_digits, v);
1289                 break;
1290             case 'c':
1291                 monitor_printc(mon, v);
1292                 break;
1293             }
1294             i += wsize;
1295         }
1296         monitor_printf(mon, "\n");
1297         addr += l;
1298         len -= l;
1299     }
1300 }
1301
1302 static void do_memory_dump(Monitor *mon, const QDict *qdict)
1303 {
1304     int count = qdict_get_int(qdict, "count");
1305     int format = qdict_get_int(qdict, "format");
1306     int size = qdict_get_int(qdict, "size");
1307     target_long addr = qdict_get_int(qdict, "addr");
1308
1309     memory_dump(mon, count, format, size, addr, 0);
1310 }
1311
1312 static void do_physical_memory_dump(Monitor *mon, const QDict *qdict)
1313 {
1314     int count = qdict_get_int(qdict, "count");
1315     int format = qdict_get_int(qdict, "format");
1316     int size = qdict_get_int(qdict, "size");
1317     target_phys_addr_t addr = qdict_get_int(qdict, "addr");
1318
1319     memory_dump(mon, count, format, size, addr, 1);
1320 }
1321
1322 static void do_print(Monitor *mon, const QDict *qdict)
1323 {
1324     int format = qdict_get_int(qdict, "format");
1325     target_phys_addr_t val = qdict_get_int(qdict, "val");
1326
1327 #if TARGET_PHYS_ADDR_BITS == 32
1328     switch(format) {
1329     case 'o':
1330         monitor_printf(mon, "%#o", val);
1331         break;
1332     case 'x':
1333         monitor_printf(mon, "%#x", val);
1334         break;
1335     case 'u':
1336         monitor_printf(mon, "%u", val);
1337         break;
1338     default:
1339     case 'd':
1340         monitor_printf(mon, "%d", val);
1341         break;
1342     case 'c':
1343         monitor_printc(mon, val);
1344         break;
1345     }
1346 #else
1347     switch(format) {
1348     case 'o':
1349         monitor_printf(mon, "%#" PRIo64, val);
1350         break;
1351     case 'x':
1352         monitor_printf(mon, "%#" PRIx64, val);
1353         break;
1354     case 'u':
1355         monitor_printf(mon, "%" PRIu64, val);
1356         break;
1357     default:
1358     case 'd':
1359         monitor_printf(mon, "%" PRId64, val);
1360         break;
1361     case 'c':
1362         monitor_printc(mon, val);
1363         break;
1364     }
1365 #endif
1366     monitor_printf(mon, "\n");
1367 }
1368
1369 static int do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
1370 {
1371     FILE *f;
1372     uint32_t size = qdict_get_int(qdict, "size");
1373     const char *filename = qdict_get_str(qdict, "filename");
1374     target_long addr = qdict_get_int(qdict, "val");
1375     uint32_t l;
1376     CPUState *env;
1377     uint8_t buf[1024];
1378     int ret = -1;
1379
1380     env = mon_get_cpu();
1381
1382     f = fopen(filename, "wb");
1383     if (!f) {
1384         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1385         return -1;
1386     }
1387     while (size != 0) {
1388         l = sizeof(buf);
1389         if (l > size)
1390             l = size;
1391         cpu_memory_rw_debug(env, addr, buf, l, 0);
1392         if (fwrite(buf, 1, l, f) != l) {
1393             monitor_printf(mon, "fwrite() error in do_memory_save\n");
1394             goto exit;
1395         }
1396         addr += l;
1397         size -= l;
1398     }
1399
1400     ret = 0;
1401
1402 exit:
1403     fclose(f);
1404     return ret;
1405 }
1406
1407 static int do_physical_memory_save(Monitor *mon, const QDict *qdict,
1408                                     QObject **ret_data)
1409 {
1410     FILE *f;
1411     uint32_t l;
1412     uint8_t buf[1024];
1413     uint32_t size = qdict_get_int(qdict, "size");
1414     const char *filename = qdict_get_str(qdict, "filename");
1415     target_phys_addr_t addr = qdict_get_int(qdict, "val");
1416     int ret = -1;
1417
1418     f = fopen(filename, "wb");
1419     if (!f) {
1420         qerror_report(QERR_OPEN_FILE_FAILED, filename);
1421         return -1;
1422     }
1423     while (size != 0) {
1424         l = sizeof(buf);
1425         if (l > size)
1426             l = size;
1427         cpu_physical_memory_rw(addr, buf, l, 0);
1428         if (fwrite(buf, 1, l, f) != l) {
1429             monitor_printf(mon, "fwrite() error in do_physical_memory_save\n");
1430             goto exit;
1431         }
1432         fflush(f);
1433         addr += l;
1434         size -= l;
1435     }
1436
1437     ret = 0;
1438
1439 exit:
1440     fclose(f);
1441     return ret;
1442 }
1443
1444 static void do_sum(Monitor *mon, const QDict *qdict)
1445 {
1446     uint32_t addr;
1447     uint8_t buf[1];
1448     uint16_t sum;
1449     uint32_t start = qdict_get_int(qdict, "start");
1450     uint32_t size = qdict_get_int(qdict, "size");
1451
1452     sum = 0;
1453     for(addr = start; addr < (start + size); addr++) {
1454         cpu_physical_memory_rw(addr, buf, 1, 0);
1455         /* BSD sum algorithm ('sum' Unix command) */
1456         sum = (sum >> 1) | (sum << 15);
1457         sum += buf[0];
1458     }
1459     monitor_printf(mon, "%05d\n", sum);
1460 }
1461
1462 typedef struct {
1463     int keycode;
1464     const char *name;
1465 } KeyDef;
1466
1467 static const KeyDef key_defs[] = {
1468     { 0x2a, "shift" },
1469     { 0x36, "shift_r" },
1470
1471     { 0x38, "alt" },
1472     { 0xb8, "alt_r" },
1473     { 0x64, "altgr" },
1474     { 0xe4, "altgr_r" },
1475     { 0x1d, "ctrl" },
1476     { 0x9d, "ctrl_r" },
1477
1478     { 0xdd, "menu" },
1479
1480     { 0x01, "esc" },
1481
1482     { 0x02, "1" },
1483     { 0x03, "2" },
1484     { 0x04, "3" },
1485     { 0x05, "4" },
1486     { 0x06, "5" },
1487     { 0x07, "6" },
1488     { 0x08, "7" },
1489     { 0x09, "8" },
1490     { 0x0a, "9" },
1491     { 0x0b, "0" },
1492     { 0x0c, "minus" },
1493     { 0x0d, "equal" },
1494     { 0x0e, "backspace" },
1495
1496     { 0x0f, "tab" },
1497     { 0x10, "q" },
1498     { 0x11, "w" },
1499     { 0x12, "e" },
1500     { 0x13, "r" },
1501     { 0x14, "t" },
1502     { 0x15, "y" },
1503     { 0x16, "u" },
1504     { 0x17, "i" },
1505     { 0x18, "o" },
1506     { 0x19, "p" },
1507     { 0x1a, "bracket_left" },
1508     { 0x1b, "bracket_right" },
1509     { 0x1c, "ret" },
1510
1511     { 0x1e, "a" },
1512     { 0x1f, "s" },
1513     { 0x20, "d" },
1514     { 0x21, "f" },
1515     { 0x22, "g" },
1516     { 0x23, "h" },
1517     { 0x24, "j" },
1518     { 0x25, "k" },
1519     { 0x26, "l" },
1520     { 0x27, "semicolon" },
1521     { 0x28, "apostrophe" },
1522     { 0x29, "grave_accent" },
1523
1524     { 0x2b, "backslash" },
1525     { 0x2c, "z" },
1526     { 0x2d, "x" },
1527     { 0x2e, "c" },
1528     { 0x2f, "v" },
1529     { 0x30, "b" },
1530     { 0x31, "n" },
1531     { 0x32, "m" },
1532     { 0x33, "comma" },
1533     { 0x34, "dot" },
1534     { 0x35, "slash" },
1535
1536     { 0x37, "asterisk" },
1537
1538     { 0x39, "spc" },
1539     { 0x3a, "caps_lock" },
1540     { 0x3b, "f1" },
1541     { 0x3c, "f2" },
1542     { 0x3d, "f3" },
1543     { 0x3e, "f4" },
1544     { 0x3f, "f5" },
1545     { 0x40, "f6" },
1546     { 0x41, "f7" },
1547     { 0x42, "f8" },
1548     { 0x43, "f9" },
1549     { 0x44, "f10" },
1550     { 0x45, "num_lock" },
1551     { 0x46, "scroll_lock" },
1552
1553     { 0xb5, "kp_divide" },
1554     { 0x37, "kp_multiply" },
1555     { 0x4a, "kp_subtract" },
1556     { 0x4e, "kp_add" },
1557     { 0x9c, "kp_enter" },
1558     { 0x53, "kp_decimal" },
1559     { 0x54, "sysrq" },
1560
1561     { 0x52, "kp_0" },
1562     { 0x4f, "kp_1" },
1563     { 0x50, "kp_2" },
1564     { 0x51, "kp_3" },
1565     { 0x4b, "kp_4" },
1566     { 0x4c, "kp_5" },
1567     { 0x4d, "kp_6" },
1568     { 0x47, "kp_7" },
1569     { 0x48, "kp_8" },
1570     { 0x49, "kp_9" },
1571
1572     { 0x56, "<" },
1573
1574     { 0x57, "f11" },
1575     { 0x58, "f12" },
1576
1577     { 0xb7, "print" },
1578
1579     { 0xc7, "home" },
1580     { 0xc9, "pgup" },
1581     { 0xd1, "pgdn" },
1582     { 0xcf, "end" },
1583
1584     { 0xcb, "left" },
1585     { 0xc8, "up" },
1586     { 0xd0, "down" },
1587     { 0xcd, "right" },
1588
1589     { 0xd2, "insert" },
1590     { 0xd3, "delete" },
1591 #if defined(TARGET_SPARC) && !defined(TARGET_SPARC64)
1592     { 0xf0, "stop" },
1593     { 0xf1, "again" },
1594     { 0xf2, "props" },
1595     { 0xf3, "undo" },
1596     { 0xf4, "front" },
1597     { 0xf5, "copy" },
1598     { 0xf6, "open" },
1599     { 0xf7, "paste" },
1600     { 0xf8, "find" },
1601     { 0xf9, "cut" },
1602     { 0xfa, "lf" },
1603     { 0xfb, "help" },
1604     { 0xfc, "meta_l" },
1605     { 0xfd, "meta_r" },
1606     { 0xfe, "compose" },
1607 #endif
1608     { 0, NULL },
1609 };
1610
1611 static int get_keycode(const char *key)
1612 {
1613     const KeyDef *p;
1614     char *endp;
1615     int ret;
1616
1617     for(p = key_defs; p->name != NULL; p++) {
1618         if (!strcmp(key, p->name))
1619             return p->keycode;
1620     }
1621     if (strstart(key, "0x", NULL)) {
1622         ret = strtoul(key, &endp, 0);
1623         if (*endp == '\0' && ret >= 0x01 && ret <= 0xff)
1624             return ret;
1625     }
1626     return -1;
1627 }
1628
1629 #define MAX_KEYCODES 16
1630 static uint8_t keycodes[MAX_KEYCODES];
1631 static int nb_pending_keycodes;
1632 static QEMUTimer *key_timer;
1633
1634 static void release_keys(void *opaque)
1635 {
1636     int keycode;
1637
1638     while (nb_pending_keycodes > 0) {
1639         nb_pending_keycodes--;
1640         keycode = keycodes[nb_pending_keycodes];
1641         if (keycode & 0x80)
1642             kbd_put_keycode(0xe0);
1643         kbd_put_keycode(keycode | 0x80);
1644     }
1645 }
1646
1647 static void do_sendkey(Monitor *mon, const QDict *qdict)
1648 {
1649     char keyname_buf[16];
1650     char *separator;
1651     int keyname_len, keycode, i;
1652     const char *string = qdict_get_str(qdict, "string");
1653     int has_hold_time = qdict_haskey(qdict, "hold_time");
1654     int hold_time = qdict_get_try_int(qdict, "hold_time", -1);
1655
1656     if (nb_pending_keycodes > 0) {
1657         qemu_del_timer(key_timer);
1658         release_keys(NULL);
1659     }
1660     if (!has_hold_time)
1661         hold_time = 100;
1662     i = 0;
1663     while (1) {
1664         separator = strchr(string, '-');
1665         keyname_len = separator ? separator - string : strlen(string);
1666         if (keyname_len > 0) {
1667             pstrcpy(keyname_buf, sizeof(keyname_buf), string);
1668             if (keyname_len > sizeof(keyname_buf) - 1) {
1669                 monitor_printf(mon, "invalid key: '%s...'\n", keyname_buf);
1670                 return;
1671             }
1672             if (i == MAX_KEYCODES) {
1673                 monitor_printf(mon, "too many keys\n");
1674                 return;
1675             }
1676             keyname_buf[keyname_len] = 0;
1677             keycode = get_keycode(keyname_buf);
1678             if (keycode < 0) {
1679                 monitor_printf(mon, "unknown key: '%s'\n", keyname_buf);
1680                 return;
1681             }
1682             keycodes[i++] = keycode;
1683         }
1684         if (!separator)
1685             break;
1686         string = separator + 1;
1687     }
1688     nb_pending_keycodes = i;
1689     /* key down events */
1690     for (i = 0; i < nb_pending_keycodes; i++) {
1691         keycode = keycodes[i];
1692         if (keycode & 0x80)
1693             kbd_put_keycode(0xe0);
1694         kbd_put_keycode(keycode & 0x7f);
1695     }
1696     /* delayed key up events */
1697     qemu_mod_timer(key_timer, qemu_get_clock(vm_clock) +
1698                    muldiv64(get_ticks_per_sec(), hold_time, 1000));
1699 }
1700
1701 static int mouse_button_state;
1702
1703 static void do_mouse_move(Monitor *mon, const QDict *qdict)
1704 {
1705     int dx, dy, dz;
1706     const char *dx_str = qdict_get_str(qdict, "dx_str");
1707     const char *dy_str = qdict_get_str(qdict, "dy_str");
1708     const char *dz_str = qdict_get_try_str(qdict, "dz_str");
1709     dx = strtol(dx_str, NULL, 0);
1710     dy = strtol(dy_str, NULL, 0);
1711     dz = 0;
1712     if (dz_str)
1713         dz = strtol(dz_str, NULL, 0);
1714     kbd_mouse_event(dx, dy, dz, mouse_button_state);
1715 }
1716
1717 static void do_mouse_button(Monitor *mon, const QDict *qdict)
1718 {
1719     int button_state = qdict_get_int(qdict, "button_state");
1720     mouse_button_state = button_state;
1721     kbd_mouse_event(0, 0, 0, mouse_button_state);
1722 }
1723
1724 static void do_ioport_read(Monitor *mon, const QDict *qdict)
1725 {
1726     int size = qdict_get_int(qdict, "size");
1727     int addr = qdict_get_int(qdict, "addr");
1728     int has_index = qdict_haskey(qdict, "index");
1729     uint32_t val;
1730     int suffix;
1731
1732     if (has_index) {
1733         int index = qdict_get_int(qdict, "index");
1734         cpu_outb(addr & IOPORTS_MASK, index & 0xff);
1735         addr++;
1736     }
1737     addr &= 0xffff;
1738
1739     switch(size) {
1740     default:
1741     case 1:
1742         val = cpu_inb(addr);
1743         suffix = 'b';
1744         break;
1745     case 2:
1746         val = cpu_inw(addr);
1747         suffix = 'w';
1748         break;
1749     case 4:
1750         val = cpu_inl(addr);
1751         suffix = 'l';
1752         break;
1753     }
1754     monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
1755                    suffix, addr, size * 2, val);
1756 }
1757
1758 static void do_ioport_write(Monitor *mon, const QDict *qdict)
1759 {
1760     int size = qdict_get_int(qdict, "size");
1761     int addr = qdict_get_int(qdict, "addr");
1762     int val = qdict_get_int(qdict, "val");
1763
1764     addr &= IOPORTS_MASK;
1765
1766     switch (size) {
1767     default:
1768     case 1:
1769         cpu_outb(addr, val);
1770         break;
1771     case 2:
1772         cpu_outw(addr, val);
1773         break;
1774     case 4:
1775         cpu_outl(addr, val);
1776         break;
1777     }
1778 }
1779
1780 static void do_boot_set(Monitor *mon, const QDict *qdict)
1781 {
1782     int res;
1783     const char *bootdevice = qdict_get_str(qdict, "bootdevice");
1784
1785     res = qemu_boot_set(bootdevice);
1786     if (res == 0) {
1787         monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
1788     } else if (res > 0) {
1789         monitor_printf(mon, "setting boot device list failed\n");
1790     } else {
1791         monitor_printf(mon, "no function defined to set boot device list for "
1792                        "this architecture\n");
1793     }
1794 }
1795
1796 /**
1797  * do_system_reset(): Issue a machine reset
1798  */
1799 static int do_system_reset(Monitor *mon, const QDict *qdict,
1800                            QObject **ret_data)
1801 {
1802     qemu_system_reset_request();
1803     return 0;
1804 }
1805
1806 /**
1807  * do_system_powerdown(): Issue a machine powerdown
1808  */
1809 static int do_system_powerdown(Monitor *mon, const QDict *qdict,
1810                                QObject **ret_data)
1811 {
1812     qemu_system_powerdown_request();
1813     return 0;
1814 }
1815
1816 #if defined(TARGET_I386)
1817 static void print_pte(Monitor *mon, uint32_t addr, uint32_t pte, uint32_t mask)
1818 {
1819     monitor_printf(mon, "%08x: %08x %c%c%c%c%c%c%c%c\n",
1820                    addr,
1821                    pte & mask,
1822                    pte & PG_GLOBAL_MASK ? 'G' : '-',
1823                    pte & PG_PSE_MASK ? 'P' : '-',
1824                    pte & PG_DIRTY_MASK ? 'D' : '-',
1825                    pte & PG_ACCESSED_MASK ? 'A' : '-',
1826                    pte & PG_PCD_MASK ? 'C' : '-',
1827                    pte & PG_PWT_MASK ? 'T' : '-',
1828                    pte & PG_USER_MASK ? 'U' : '-',
1829                    pte & PG_RW_MASK ? 'W' : '-');
1830 }
1831
1832 static void tlb_info(Monitor *mon)
1833 {
1834     CPUState *env;
1835     int l1, l2;
1836     uint32_t pgd, pde, pte;
1837
1838     env = mon_get_cpu();
1839
1840     if (!(env->cr[0] & CR0_PG_MASK)) {
1841         monitor_printf(mon, "PG disabled\n");
1842         return;
1843     }
1844     pgd = env->cr[3] & ~0xfff;
1845     for(l1 = 0; l1 < 1024; l1++) {
1846         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1847         pde = le32_to_cpu(pde);
1848         if (pde & PG_PRESENT_MASK) {
1849             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1850                 print_pte(mon, (l1 << 22), pde, ~((1 << 20) - 1));
1851             } else {
1852                 for(l2 = 0; l2 < 1024; l2++) {
1853                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1854                                              (uint8_t *)&pte, 4);
1855                     pte = le32_to_cpu(pte);
1856                     if (pte & PG_PRESENT_MASK) {
1857                         print_pte(mon, (l1 << 22) + (l2 << 12),
1858                                   pte & ~PG_PSE_MASK,
1859                                   ~0xfff);
1860                     }
1861                 }
1862             }
1863         }
1864     }
1865 }
1866
1867 static void mem_print(Monitor *mon, uint32_t *pstart, int *plast_prot,
1868                       uint32_t end, int prot)
1869 {
1870     int prot1;
1871     prot1 = *plast_prot;
1872     if (prot != prot1) {
1873         if (*pstart != -1) {
1874             monitor_printf(mon, "%08x-%08x %08x %c%c%c\n",
1875                            *pstart, end, end - *pstart,
1876                            prot1 & PG_USER_MASK ? 'u' : '-',
1877                            'r',
1878                            prot1 & PG_RW_MASK ? 'w' : '-');
1879         }
1880         if (prot != 0)
1881             *pstart = end;
1882         else
1883             *pstart = -1;
1884         *plast_prot = prot;
1885     }
1886 }
1887
1888 static void mem_info(Monitor *mon)
1889 {
1890     CPUState *env;
1891     int l1, l2, prot, last_prot;
1892     uint32_t pgd, pde, pte, start, end;
1893
1894     env = mon_get_cpu();
1895
1896     if (!(env->cr[0] & CR0_PG_MASK)) {
1897         monitor_printf(mon, "PG disabled\n");
1898         return;
1899     }
1900     pgd = env->cr[3] & ~0xfff;
1901     last_prot = 0;
1902     start = -1;
1903     for(l1 = 0; l1 < 1024; l1++) {
1904         cpu_physical_memory_read(pgd + l1 * 4, (uint8_t *)&pde, 4);
1905         pde = le32_to_cpu(pde);
1906         end = l1 << 22;
1907         if (pde & PG_PRESENT_MASK) {
1908             if ((pde & PG_PSE_MASK) && (env->cr[4] & CR4_PSE_MASK)) {
1909                 prot = pde & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1910                 mem_print(mon, &start, &last_prot, end, prot);
1911             } else {
1912                 for(l2 = 0; l2 < 1024; l2++) {
1913                     cpu_physical_memory_read((pde & ~0xfff) + l2 * 4,
1914                                              (uint8_t *)&pte, 4);
1915                     pte = le32_to_cpu(pte);
1916                     end = (l1 << 22) + (l2 << 12);
1917                     if (pte & PG_PRESENT_MASK) {
1918                         prot = pte & (PG_USER_MASK | PG_RW_MASK | PG_PRESENT_MASK);
1919                     } else {
1920                         prot = 0;
1921                     }
1922                     mem_print(mon, &start, &last_prot, end, prot);
1923                 }
1924             }
1925         } else {
1926             prot = 0;
1927             mem_print(mon, &start, &last_prot, end, prot);
1928         }
1929     }
1930 }
1931 #endif
1932
1933 #if defined(TARGET_SH4)
1934
1935 static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
1936 {
1937     monitor_printf(mon, " tlb%i:\t"
1938                    "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
1939                    "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
1940                    "dirty=%hhu writethrough=%hhu\n",
1941                    idx,
1942                    tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
1943                    tlb->v, tlb->sh, tlb->c, tlb->pr,
1944                    tlb->d, tlb->wt);
1945 }
1946
1947 static void tlb_info(Monitor *mon)
1948 {
1949     CPUState *env = mon_get_cpu();
1950     int i;
1951
1952     monitor_printf (mon, "ITLB:\n");
1953     for (i = 0 ; i < ITLB_SIZE ; i++)
1954         print_tlb (mon, i, &env->itlb[i]);
1955     monitor_printf (mon, "UTLB:\n");
1956     for (i = 0 ; i < UTLB_SIZE ; i++)
1957         print_tlb (mon, i, &env->utlb[i]);
1958 }
1959
1960 #endif
1961
1962 static void do_info_kvm_print(Monitor *mon, const QObject *data)
1963 {
1964     QDict *qdict;
1965
1966     qdict = qobject_to_qdict(data);
1967
1968     monitor_printf(mon, "kvm support: ");
1969     if (qdict_get_bool(qdict, "present")) {
1970         monitor_printf(mon, "%s\n", qdict_get_bool(qdict, "enabled") ?
1971                                     "enabled" : "disabled");
1972     } else {
1973         monitor_printf(mon, "not compiled\n");
1974     }
1975 }
1976
1977 static void do_info_kvm(Monitor *mon, QObject **ret_data)
1978 {
1979 #ifdef CONFIG_KVM
1980     *ret_data = qobject_from_jsonf("{ 'enabled': %i, 'present': true }",
1981                                    kvm_enabled());
1982 #else
1983     *ret_data = qobject_from_jsonf("{ 'enabled': false, 'present': false }");
1984 #endif
1985 }
1986
1987 static void do_info_numa(Monitor *mon)
1988 {
1989     int i;
1990     CPUState *env;
1991
1992     monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
1993     for (i = 0; i < nb_numa_nodes; i++) {
1994         monitor_printf(mon, "node %d cpus:", i);
1995         for (env = first_cpu; env != NULL; env = env->next_cpu) {
1996             if (env->numa_node == i) {
1997                 monitor_printf(mon, " %d", env->cpu_index);
1998             }
1999         }
2000         monitor_printf(mon, "\n");
2001         monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
2002             node_mem[i] >> 20);
2003     }
2004 }
2005
2006 #ifdef CONFIG_PROFILER
2007
2008 int64_t qemu_time;
2009 int64_t dev_time;
2010
2011 static void do_info_profile(Monitor *mon)
2012 {
2013     int64_t total;
2014     total = qemu_time;
2015     if (total == 0)
2016         total = 1;
2017     monitor_printf(mon, "async time  %" PRId64 " (%0.3f)\n",
2018                    dev_time, dev_time / (double)get_ticks_per_sec());
2019     monitor_printf(mon, "qemu time   %" PRId64 " (%0.3f)\n",
2020                    qemu_time, qemu_time / (double)get_ticks_per_sec());
2021     qemu_time = 0;
2022     dev_time = 0;
2023 }
2024 #else
2025 static void do_info_profile(Monitor *mon)
2026 {
2027     monitor_printf(mon, "Internal profiler not compiled\n");
2028 }
2029 #endif
2030
2031 /* Capture support */
2032 static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
2033
2034 static void do_info_capture(Monitor *mon)
2035 {
2036     int i;
2037     CaptureState *s;
2038
2039     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2040         monitor_printf(mon, "[%d]: ", i);
2041         s->ops.info (s->opaque);
2042     }
2043 }
2044
2045 #ifdef HAS_AUDIO
2046 static void do_stop_capture(Monitor *mon, const QDict *qdict)
2047 {
2048     int i;
2049     int n = qdict_get_int(qdict, "n");
2050     CaptureState *s;
2051
2052     for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
2053         if (i == n) {
2054             s->ops.destroy (s->opaque);
2055             QLIST_REMOVE (s, entries);
2056             qemu_free (s);
2057             return;
2058         }
2059     }
2060 }
2061
2062 static void do_wav_capture(Monitor *mon, const QDict *qdict)
2063 {
2064     const char *path = qdict_get_str(qdict, "path");
2065     int has_freq = qdict_haskey(qdict, "freq");
2066     int freq = qdict_get_try_int(qdict, "freq", -1);
2067     int has_bits = qdict_haskey(qdict, "bits");
2068     int bits = qdict_get_try_int(qdict, "bits", -1);
2069     int has_channels = qdict_haskey(qdict, "nchannels");
2070     int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
2071     CaptureState *s;
2072
2073     s = qemu_mallocz (sizeof (*s));
2074
2075     freq = has_freq ? freq : 44100;
2076     bits = has_bits ? bits : 16;
2077     nchannels = has_channels ? nchannels : 2;
2078
2079     if (wav_start_capture (s, path, freq, bits, nchannels)) {
2080         monitor_printf(mon, "Faied to add wave capture\n");
2081         qemu_free (s);
2082     }
2083     QLIST_INSERT_HEAD (&capture_head, s, entries);
2084 }
2085 #endif
2086
2087 #if defined(TARGET_I386)
2088 static void do_inject_nmi(Monitor *mon, const QDict *qdict)
2089 {
2090     CPUState *env;
2091     int cpu_index = qdict_get_int(qdict, "cpu_index");
2092
2093     for (env = first_cpu; env != NULL; env = env->next_cpu)
2094         if (env->cpu_index == cpu_index) {
2095             cpu_interrupt(env, CPU_INTERRUPT_NMI);
2096             break;
2097         }
2098 }
2099 #endif
2100
2101 static void do_info_status_print(Monitor *mon, const QObject *data)
2102 {
2103     QDict *qdict;
2104
2105     qdict = qobject_to_qdict(data);
2106
2107     monitor_printf(mon, "VM status: ");
2108     if (qdict_get_bool(qdict, "running")) {
2109         monitor_printf(mon, "running");
2110         if (qdict_get_bool(qdict, "singlestep")) {
2111             monitor_printf(mon, " (single step mode)");
2112         }
2113     } else {
2114         monitor_printf(mon, "paused");
2115     }
2116
2117     monitor_printf(mon, "\n");
2118 }
2119
2120 static void do_info_status(Monitor *mon, QObject **ret_data)
2121 {
2122     *ret_data = qobject_from_jsonf("{ 'running': %i, 'singlestep': %i }",
2123                                     vm_running, singlestep);
2124 }
2125
2126 static qemu_acl *find_acl(Monitor *mon, const char *name)
2127 {
2128     qemu_acl *acl = qemu_acl_find(name);
2129
2130     if (!acl) {
2131         monitor_printf(mon, "acl: unknown list '%s'\n", name);
2132     }
2133     return acl;
2134 }
2135
2136 static void do_acl_show(Monitor *mon, const QDict *qdict)
2137 {
2138     const char *aclname = qdict_get_str(qdict, "aclname");
2139     qemu_acl *acl = find_acl(mon, aclname);
2140     qemu_acl_entry *entry;
2141     int i = 0;
2142
2143     if (acl) {
2144         monitor_printf(mon, "policy: %s\n",
2145                        acl->defaultDeny ? "deny" : "allow");
2146         QTAILQ_FOREACH(entry, &acl->entries, next) {
2147             i++;
2148             monitor_printf(mon, "%d: %s %s\n", i,
2149                            entry->deny ? "deny" : "allow", entry->match);
2150         }
2151     }
2152 }
2153
2154 static void do_acl_reset(Monitor *mon, const QDict *qdict)
2155 {
2156     const char *aclname = qdict_get_str(qdict, "aclname");
2157     qemu_acl *acl = find_acl(mon, aclname);
2158
2159     if (acl) {
2160         qemu_acl_reset(acl);
2161         monitor_printf(mon, "acl: removed all rules\n");
2162     }
2163 }
2164
2165 static void do_acl_policy(Monitor *mon, const QDict *qdict)
2166 {
2167     const char *aclname = qdict_get_str(qdict, "aclname");
2168     const char *policy = qdict_get_str(qdict, "policy");
2169     qemu_acl *acl = find_acl(mon, aclname);
2170
2171     if (acl) {
2172         if (strcmp(policy, "allow") == 0) {
2173             acl->defaultDeny = 0;
2174             monitor_printf(mon, "acl: policy set to 'allow'\n");
2175         } else if (strcmp(policy, "deny") == 0) {
2176             acl->defaultDeny = 1;
2177             monitor_printf(mon, "acl: policy set to 'deny'\n");
2178         } else {
2179             monitor_printf(mon, "acl: unknown policy '%s', "
2180                            "expected 'deny' or 'allow'\n", policy);
2181         }
2182     }
2183 }
2184
2185 static void do_acl_add(Monitor *mon, const QDict *qdict)
2186 {
2187     const char *aclname = qdict_get_str(qdict, "aclname");
2188     const char *match = qdict_get_str(qdict, "match");
2189     const char *policy = qdict_get_str(qdict, "policy");
2190     int has_index = qdict_haskey(qdict, "index");
2191     int index = qdict_get_try_int(qdict, "index", -1);
2192     qemu_acl *acl = find_acl(mon, aclname);
2193     int deny, ret;
2194
2195     if (acl) {
2196         if (strcmp(policy, "allow") == 0) {
2197             deny = 0;
2198         } else if (strcmp(policy, "deny") == 0) {
2199             deny = 1;
2200         } else {
2201             monitor_printf(mon, "acl: unknown policy '%s', "
2202                            "expected 'deny' or 'allow'\n", policy);
2203             return;
2204         }
2205         if (has_index)
2206             ret = qemu_acl_insert(acl, deny, match, index);
2207         else
2208             ret = qemu_acl_append(acl, deny, match);
2209         if (ret < 0)
2210             monitor_printf(mon, "acl: unable to add acl entry\n");
2211         else
2212             monitor_printf(mon, "acl: added rule at position %d\n", ret);
2213     }
2214 }
2215
2216 static void do_acl_remove(Monitor *mon, const QDict *qdict)
2217 {
2218     const char *aclname = qdict_get_str(qdict, "aclname");
2219     const char *match = qdict_get_str(qdict, "match");
2220     qemu_acl *acl = find_acl(mon, aclname);
2221     int ret;
2222
2223     if (acl) {
2224         ret = qemu_acl_remove(acl, match);
2225         if (ret < 0)
2226             monitor_printf(mon, "acl: no matching acl entry\n");
2227         else
2228             monitor_printf(mon, "acl: removed rule at position %d\n", ret);
2229     }
2230 }
2231
2232 #if defined(TARGET_I386)
2233 static void do_inject_mce(Monitor *mon, const QDict *qdict)
2234 {
2235     CPUState *cenv;
2236     int cpu_index = qdict_get_int(qdict, "cpu_index");
2237     int bank = qdict_get_int(qdict, "bank");
2238     uint64_t status = qdict_get_int(qdict, "status");
2239     uint64_t mcg_status = qdict_get_int(qdict, "mcg_status");
2240     uint64_t addr = qdict_get_int(qdict, "addr");
2241     uint64_t misc = qdict_get_int(qdict, "misc");
2242
2243     for (cenv = first_cpu; cenv != NULL; cenv = cenv->next_cpu)
2244         if (cenv->cpu_index == cpu_index && cenv->mcg_cap) {
2245             cpu_inject_x86_mce(cenv, bank, status, mcg_status, addr, misc);
2246             break;
2247         }
2248 }
2249 #endif
2250
2251 static int do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2252 {
2253     const char *fdname = qdict_get_str(qdict, "fdname");
2254     mon_fd_t *monfd;
2255     int fd;
2256
2257     fd = qemu_chr_get_msgfd(mon->chr);
2258     if (fd == -1) {
2259         qerror_report(QERR_FD_NOT_SUPPLIED);
2260         return -1;
2261     }
2262
2263     if (qemu_isdigit(fdname[0])) {
2264         qerror_report(QERR_INVALID_PARAMETER_VALUE, "fdname",
2265                       "a name not starting with a digit");
2266         return -1;
2267     }
2268
2269     QLIST_FOREACH(monfd, &mon->fds, next) {
2270         if (strcmp(monfd->name, fdname) != 0) {
2271             continue;
2272         }
2273
2274         close(monfd->fd);
2275         monfd->fd = fd;
2276         return 0;
2277     }
2278
2279     monfd = qemu_mallocz(sizeof(mon_fd_t));
2280     monfd->name = qemu_strdup(fdname);
2281     monfd->fd = fd;
2282
2283     QLIST_INSERT_HEAD(&mon->fds, monfd, next);
2284     return 0;
2285 }
2286
2287 static int do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
2288 {
2289     const char *fdname = qdict_get_str(qdict, "fdname");
2290     mon_fd_t *monfd;
2291
2292     QLIST_FOREACH(monfd, &mon->fds, next) {
2293         if (strcmp(monfd->name, fdname) != 0) {
2294             continue;
2295         }
2296
2297         QLIST_REMOVE(monfd, next);
2298         close(monfd->fd);
2299         qemu_free(monfd->name);
2300         qemu_free(monfd);
2301         return 0;
2302     }
2303
2304     qerror_report(QERR_FD_NOT_FOUND, fdname);
2305     return -1;
2306 }
2307
2308 static void do_loadvm(Monitor *mon, const QDict *qdict)
2309 {
2310     int saved_vm_running  = vm_running;
2311     const char *name = qdict_get_str(qdict, "name");
2312
2313     vm_stop(0);
2314
2315     if (load_vmstate(name) == 0 && saved_vm_running) {
2316         vm_start();
2317     }
2318 }
2319
2320 int monitor_get_fd(Monitor *mon, const char *fdname)
2321 {
2322     mon_fd_t *monfd;
2323
2324     QLIST_FOREACH(monfd, &mon->fds, next) {
2325         int fd;
2326
2327         if (strcmp(monfd->name, fdname) != 0) {
2328             continue;
2329         }
2330
2331         fd = monfd->fd;
2332
2333         /* caller takes ownership of fd */
2334         QLIST_REMOVE(monfd, next);
2335         qemu_free(monfd->name);
2336         qemu_free(monfd);
2337
2338         return fd;
2339     }
2340
2341     return -1;
2342 }
2343
2344 static const mon_cmd_t mon_cmds[] = {
2345 #include "hmp-commands.h"
2346     { NULL, NULL, },
2347 };
2348
2349 /* Please update hmp-commands.hx when adding or changing commands */
2350 static const mon_cmd_t info_cmds[] = {
2351     {
2352         .name       = "version",
2353         .args_type  = "",
2354         .params     = "",
2355         .help       = "show the version of QEMU",
2356         .user_print = do_info_version_print,
2357         .mhandler.info_new = do_info_version,
2358     },
2359     {
2360         .name       = "network",
2361         .args_type  = "",
2362         .params     = "",
2363         .help       = "show the network state",
2364         .mhandler.info = do_info_network,
2365     },
2366     {
2367         .name       = "chardev",
2368         .args_type  = "",
2369         .params     = "",
2370         .help       = "show the character devices",
2371         .user_print = qemu_chr_info_print,
2372         .mhandler.info_new = qemu_chr_info,
2373     },
2374     {
2375         .name       = "block",
2376         .args_type  = "",
2377         .params     = "",
2378         .help       = "show the block devices",
2379         .user_print = bdrv_info_print,
2380         .mhandler.info_new = bdrv_info,
2381     },
2382     {
2383         .name       = "blockstats",
2384         .args_type  = "",
2385         .params     = "",
2386         .help       = "show block device statistics",
2387         .user_print = bdrv_stats_print,
2388         .mhandler.info_new = bdrv_info_stats,
2389     },
2390     {
2391         .name       = "registers",
2392         .args_type  = "",
2393         .params     = "",
2394         .help       = "show the cpu registers",
2395         .mhandler.info = do_info_registers,
2396     },
2397     {
2398         .name       = "cpus",
2399         .args_type  = "",
2400         .params     = "",
2401         .help       = "show infos for each CPU",
2402         .user_print = monitor_print_cpus,
2403         .mhandler.info_new = do_info_cpus,
2404     },
2405     {
2406         .name       = "history",
2407         .args_type  = "",
2408         .params     = "",
2409         .help       = "show the command line history",
2410         .mhandler.info = do_info_history,
2411     },
2412     {
2413         .name       = "irq",
2414         .args_type  = "",
2415         .params     = "",
2416         .help       = "show the interrupts statistics (if available)",
2417         .mhandler.info = irq_info,
2418     },
2419     {
2420         .name       = "pic",
2421         .args_type  = "",
2422         .params     = "",
2423         .help       = "show i8259 (PIC) state",
2424         .mhandler.info = pic_info,
2425     },
2426     {
2427         .name       = "pci",
2428         .args_type  = "",
2429         .params     = "",
2430         .help       = "show PCI info",
2431         .user_print = do_pci_info_print,
2432         .mhandler.info_new = do_pci_info,
2433     },
2434 #if defined(TARGET_I386) || defined(TARGET_SH4)
2435     {
2436         .name       = "tlb",
2437         .args_type  = "",
2438         .params     = "",
2439         .help       = "show virtual to physical memory mappings",
2440         .mhandler.info = tlb_info,
2441     },
2442 #endif
2443 #if defined(TARGET_I386)
2444     {
2445         .name       = "mem",
2446         .args_type  = "",
2447         .params     = "",
2448         .help       = "show the active virtual memory mappings",
2449         .mhandler.info = mem_info,
2450     },
2451 #endif
2452     {
2453         .name       = "jit",
2454         .args_type  = "",
2455         .params     = "",
2456         .help       = "show dynamic compiler info",
2457         .mhandler.info = do_info_jit,
2458     },
2459     {
2460         .name       = "kvm",
2461         .args_type  = "",
2462         .params     = "",
2463         .help       = "show KVM information",
2464         .user_print = do_info_kvm_print,
2465         .mhandler.info_new = do_info_kvm,
2466     },
2467     {
2468         .name       = "numa",
2469         .args_type  = "",
2470         .params     = "",
2471         .help       = "show NUMA information",
2472         .mhandler.info = do_info_numa,
2473     },
2474     {
2475         .name       = "usb",
2476         .args_type  = "",
2477         .params     = "",
2478         .help       = "show guest USB devices",
2479         .mhandler.info = usb_info,
2480     },
2481     {
2482         .name       = "usbhost",
2483         .args_type  = "",
2484         .params     = "",
2485         .help       = "show host USB devices",
2486         .mhandler.info = usb_host_info,
2487     },
2488     {
2489         .name       = "profile",
2490         .args_type  = "",
2491         .params     = "",
2492         .help       = "show profiling information",
2493         .mhandler.info = do_info_profile,
2494     },
2495     {
2496         .name       = "capture",
2497         .args_type  = "",
2498         .params     = "",
2499         .help       = "show capture information",
2500         .mhandler.info = do_info_capture,
2501     },
2502     {
2503         .name       = "snapshots",
2504         .args_type  = "",
2505         .params     = "",
2506         .help       = "show the currently saved VM snapshots",
2507         .mhandler.info = do_info_snapshots,
2508     },
2509     {
2510         .name       = "status",
2511         .args_type  = "",
2512         .params     = "",
2513         .help       = "show the current VM status (running|paused)",
2514         .user_print = do_info_status_print,
2515         .mhandler.info_new = do_info_status,
2516     },
2517     {
2518         .name       = "pcmcia",
2519         .args_type  = "",
2520         .params     = "",
2521         .help       = "show guest PCMCIA status",
2522         .mhandler.info = pcmcia_info,
2523     },
2524     {
2525         .name       = "mice",
2526         .args_type  = "",
2527         .params     = "",
2528         .help       = "show which guest mouse is receiving events",
2529         .user_print = do_info_mice_print,
2530         .mhandler.info_new = do_info_mice,
2531     },
2532     {
2533         .name       = "vnc",
2534         .args_type  = "",
2535         .params     = "",
2536         .help       = "show the vnc server status",
2537         .user_print = do_info_vnc_print,
2538         .mhandler.info_new = do_info_vnc,
2539     },
2540     {
2541         .name       = "name",
2542         .args_type  = "",
2543         .params     = "",
2544         .help       = "show the current VM name",
2545         .user_print = do_info_name_print,
2546         .mhandler.info_new = do_info_name,
2547     },
2548     {
2549         .name       = "uuid",
2550         .args_type  = "",
2551         .params     = "",
2552         .help       = "show the current VM UUID",
2553         .user_print = do_info_uuid_print,
2554         .mhandler.info_new = do_info_uuid,
2555     },
2556 #if defined(TARGET_PPC)
2557     {
2558         .name       = "cpustats",
2559         .args_type  = "",
2560         .params     = "",
2561         .help       = "show CPU statistics",
2562         .mhandler.info = do_info_cpu_stats,
2563     },
2564 #endif
2565 #if defined(CONFIG_SLIRP)
2566     {
2567         .name       = "usernet",
2568         .args_type  = "",
2569         .params     = "",
2570         .help       = "show user network stack connection states",
2571         .mhandler.info = do_info_usernet,
2572     },
2573 #endif
2574     {
2575         .name       = "migrate",
2576         .args_type  = "",
2577         .params     = "",
2578         .help       = "show migration status",
2579         .user_print = do_info_migrate_print,
2580         .mhandler.info_new = do_info_migrate,
2581     },
2582     {
2583         .name       = "balloon",
2584         .args_type  = "",
2585         .params     = "",
2586         .help       = "show balloon information",
2587         .user_print = monitor_print_balloon,
2588         .mhandler.info_async = do_info_balloon,
2589         .flags      = MONITOR_CMD_ASYNC,
2590     },
2591     {
2592         .name       = "qtree",
2593         .args_type  = "",
2594         .params     = "",
2595         .help       = "show device tree",
2596         .mhandler.info = do_info_qtree,
2597     },
2598     {
2599         .name       = "qdm",
2600         .args_type  = "",
2601         .params     = "",
2602         .help       = "show qdev device model list",
2603         .mhandler.info = do_info_qdm,
2604     },
2605     {
2606         .name       = "roms",
2607         .args_type  = "",
2608         .params     = "",
2609         .help       = "show roms",
2610         .mhandler.info = do_info_roms,
2611     },
2612 #if defined(CONFIG_SIMPLE_TRACE)
2613     {
2614         .name       = "trace",
2615         .args_type  = "",
2616         .params     = "",
2617         .help       = "show current contents of trace buffer",
2618         .mhandler.info = do_info_trace,
2619     },
2620     {
2621         .name       = "trace-events",
2622         .args_type  = "",
2623         .params     = "",
2624         .help       = "show available trace-events & their state",
2625         .mhandler.info = do_info_trace_events,
2626     },
2627 #endif
2628     {
2629         .name       = NULL,
2630     },
2631 };
2632
2633 static const mon_cmd_t qmp_cmds[] = {
2634 #include "qmp-commands.h"
2635     { /* NULL */ },
2636 };
2637
2638 static const mon_cmd_t qmp_query_cmds[] = {
2639     {
2640         .name       = "version",
2641         .args_type  = "",
2642         .params     = "",
2643         .help       = "show the version of QEMU",
2644         .user_print = do_info_version_print,
2645         .mhandler.info_new = do_info_version,
2646     },
2647     {
2648         .name       = "commands",
2649         .args_type  = "",
2650         .params     = "",
2651         .help       = "list QMP available commands",
2652         .user_print = monitor_user_noop,
2653         .mhandler.info_new = do_info_commands,
2654     },
2655     {
2656         .name       = "chardev",
2657         .args_type  = "",
2658         .params     = "",
2659         .help       = "show the character devices",
2660         .user_print = qemu_chr_info_print,
2661         .mhandler.info_new = qemu_chr_info,
2662     },
2663     {
2664         .name       = "block",
2665         .args_type  = "",
2666         .params     = "",
2667         .help       = "show the block devices",
2668         .user_print = bdrv_info_print,
2669         .mhandler.info_new = bdrv_info,
2670     },
2671     {
2672         .name       = "blockstats",
2673         .args_type  = "",
2674         .params     = "",
2675         .help       = "show block device statistics",
2676         .user_print = bdrv_stats_print,
2677         .mhandler.info_new = bdrv_info_stats,
2678     },
2679     {
2680         .name       = "cpus",
2681         .args_type  = "",
2682         .params     = "",
2683         .help       = "show infos for each CPU",
2684         .user_print = monitor_print_cpus,
2685         .mhandler.info_new = do_info_cpus,
2686     },
2687     {
2688         .name       = "pci",
2689         .args_type  = "",
2690         .params     = "",
2691         .help       = "show PCI info",
2692         .user_print = do_pci_info_print,
2693         .mhandler.info_new = do_pci_info,
2694     },
2695     {
2696         .name       = "kvm",
2697         .args_type  = "",
2698         .params     = "",
2699         .help       = "show KVM information",
2700         .user_print = do_info_kvm_print,
2701         .mhandler.info_new = do_info_kvm,
2702     },
2703     {
2704         .name       = "status",
2705         .args_type  = "",
2706         .params     = "",
2707         .help       = "show the current VM status (running|paused)",
2708         .user_print = do_info_status_print,
2709         .mhandler.info_new = do_info_status,
2710     },
2711     {
2712         .name       = "mice",
2713         .args_type  = "",
2714         .params     = "",
2715         .help       = "show which guest mouse is receiving events",
2716         .user_print = do_info_mice_print,
2717         .mhandler.info_new = do_info_mice,
2718     },
2719     {
2720         .name       = "vnc",
2721         .args_type  = "",
2722         .params     = "",
2723         .help       = "show the vnc server status",
2724         .user_print = do_info_vnc_print,
2725         .mhandler.info_new = do_info_vnc,
2726     },
2727     {
2728         .name       = "name",
2729         .args_type  = "",
2730         .params     = "",
2731         .help       = "show the current VM name",
2732         .user_print = do_info_name_print,
2733         .mhandler.info_new = do_info_name,
2734     },
2735     {
2736         .name       = "uuid",
2737         .args_type  = "",
2738         .params     = "",
2739         .help       = "show the current VM UUID",
2740         .user_print = do_info_uuid_print,
2741         .mhandler.info_new = do_info_uuid,
2742     },
2743     {
2744         .name       = "migrate",
2745         .args_type  = "",
2746         .params     = "",
2747         .help       = "show migration status",
2748         .user_print = do_info_migrate_print,
2749         .mhandler.info_new = do_info_migrate,
2750     },
2751     {
2752         .name       = "balloon",
2753         .args_type  = "",
2754         .params     = "",
2755         .help       = "show balloon information",
2756         .user_print = monitor_print_balloon,
2757         .mhandler.info_async = do_info_balloon,
2758         .flags      = MONITOR_CMD_ASYNC,
2759     },
2760     { /* NULL */ },
2761 };
2762
2763 /*******************************************************************/
2764
2765 static const char *pch;
2766 static jmp_buf expr_env;
2767
2768 #define MD_TLONG 0
2769 #define MD_I32   1
2770
2771 typedef struct MonitorDef {
2772     const char *name;
2773     int offset;
2774     target_long (*get_value)(const struct MonitorDef *md, int val);
2775     int type;
2776 } MonitorDef;
2777
2778 #if defined(TARGET_I386)
2779 static target_long monitor_get_pc (const struct MonitorDef *md, int val)
2780 {
2781     CPUState *env = mon_get_cpu();
2782     return env->eip + env->segs[R_CS].base;
2783 }
2784 #endif
2785
2786 #if defined(TARGET_PPC)
2787 static target_long monitor_get_ccr (const struct MonitorDef *md, int val)
2788 {
2789     CPUState *env = mon_get_cpu();
2790     unsigned int u;
2791     int i;
2792
2793     u = 0;
2794     for (i = 0; i < 8; i++)
2795         u |= env->crf[i] << (32 - (4 * i));
2796
2797     return u;
2798 }
2799
2800 static target_long monitor_get_msr (const struct MonitorDef *md, int val)
2801 {
2802     CPUState *env = mon_get_cpu();
2803     return env->msr;
2804 }
2805
2806 static target_long monitor_get_xer (const struct MonitorDef *md, int val)
2807 {
2808     CPUState *env = mon_get_cpu();
2809     return env->xer;
2810 }
2811
2812 static target_long monitor_get_decr (const struct MonitorDef *md, int val)
2813 {
2814     CPUState *env = mon_get_cpu();
2815     return cpu_ppc_load_decr(env);
2816 }
2817
2818 static target_long monitor_get_tbu (const struct MonitorDef *md, int val)
2819 {
2820     CPUState *env = mon_get_cpu();
2821     return cpu_ppc_load_tbu(env);
2822 }
2823
2824 static target_long monitor_get_tbl (const struct MonitorDef *md, int val)
2825 {
2826     CPUState *env = mon_get_cpu();
2827     return cpu_ppc_load_tbl(env);
2828 }
2829 #endif
2830
2831 #if defined(TARGET_SPARC)
2832 #ifndef TARGET_SPARC64
2833 static target_long monitor_get_psr (const struct MonitorDef *md, int val)
2834 {
2835     CPUState *env = mon_get_cpu();
2836
2837     return cpu_get_psr(env);
2838 }
2839 #endif
2840
2841 static target_long monitor_get_reg(const struct MonitorDef *md, int val)
2842 {
2843     CPUState *env = mon_get_cpu();
2844     return env->regwptr[val];
2845 }
2846 #endif
2847
2848 static const MonitorDef monitor_defs[] = {
2849 #ifdef TARGET_I386
2850
2851 #define SEG(name, seg) \
2852     { name, offsetof(CPUState, segs[seg].selector), NULL, MD_I32 },\
2853     { name ".base", offsetof(CPUState, segs[seg].base) },\
2854     { name ".limit", offsetof(CPUState, segs[seg].limit), NULL, MD_I32 },
2855
2856     { "eax", offsetof(CPUState, regs[0]) },
2857     { "ecx", offsetof(CPUState, regs[1]) },
2858     { "edx", offsetof(CPUState, regs[2]) },
2859     { "ebx", offsetof(CPUState, regs[3]) },
2860     { "esp|sp", offsetof(CPUState, regs[4]) },
2861     { "ebp|fp", offsetof(CPUState, regs[5]) },
2862     { "esi", offsetof(CPUState, regs[6]) },
2863     { "edi", offsetof(CPUState, regs[7]) },
2864 #ifdef TARGET_X86_64
2865     { "r8", offsetof(CPUState, regs[8]) },
2866     { "r9", offsetof(CPUState, regs[9]) },
2867     { "r10", offsetof(CPUState, regs[10]) },
2868     { "r11", offsetof(CPUState, regs[11]) },
2869     { "r12", offsetof(CPUState, regs[12]) },
2870     { "r13", offsetof(CPUState, regs[13]) },
2871     { "r14", offsetof(CPUState, regs[14]) },
2872     { "r15", offsetof(CPUState, regs[15]) },
2873 #endif
2874     { "eflags", offsetof(CPUState, eflags) },
2875     { "eip", offsetof(CPUState, eip) },
2876     SEG("cs", R_CS)
2877     SEG("ds", R_DS)
2878     SEG("es", R_ES)
2879     SEG("ss", R_SS)
2880     SEG("fs", R_FS)
2881     SEG("gs", R_GS)
2882     { "pc", 0, monitor_get_pc, },
2883 #elif defined(TARGET_PPC)
2884     /* General purpose registers */
2885     { "r0", offsetof(CPUState, gpr[0]) },
2886     { "r1", offsetof(CPUState, gpr[1]) },
2887     { "r2", offsetof(CPUState, gpr[2]) },
2888     { "r3", offsetof(CPUState, gpr[3]) },
2889     { "r4", offsetof(CPUState, gpr[4]) },
2890     { "r5", offsetof(CPUState, gpr[5]) },
2891     { "r6", offsetof(CPUState, gpr[6]) },
2892     { "r7", offsetof(CPUState, gpr[7]) },
2893     { "r8", offsetof(CPUState, gpr[8]) },
2894     { "r9", offsetof(CPUState, gpr[9]) },
2895     { "r10", offsetof(CPUState, gpr[10]) },
2896     { "r11", offsetof(CPUState, gpr[11]) },
2897     { "r12", offsetof(CPUState, gpr[12]) },
2898     { "r13", offsetof(CPUState, gpr[13]) },
2899     { "r14", offsetof(CPUState, gpr[14]) },
2900     { "r15", offsetof(CPUState, gpr[15]) },
2901     { "r16", offsetof(CPUState, gpr[16]) },
2902     { "r17", offsetof(CPUState, gpr[17]) },
2903     { "r18", offsetof(CPUState, gpr[18]) },
2904     { "r19", offsetof(CPUState, gpr[19]) },
2905     { "r20", offsetof(CPUState, gpr[20]) },
2906     { "r21", offsetof(CPUState, gpr[21]) },
2907     { "r22", offsetof(CPUState, gpr[22]) },
2908     { "r23", offsetof(CPUState, gpr[23]) },
2909     { "r24", offsetof(CPUState, gpr[24]) },
2910     { "r25", offsetof(CPUState, gpr[25]) },
2911     { "r26", offsetof(CPUState, gpr[26]) },
2912     { "r27", offsetof(CPUState, gpr[27]) },
2913     { "r28", offsetof(CPUState, gpr[28]) },
2914     { "r29", offsetof(CPUState, gpr[29]) },
2915     { "r30", offsetof(CPUState, gpr[30]) },
2916     { "r31", offsetof(CPUState, gpr[31]) },
2917     /* Floating point registers */
2918     { "f0", offsetof(CPUState, fpr[0]) },
2919     { "f1", offsetof(CPUState, fpr[1]) },
2920     { "f2", offsetof(CPUState, fpr[2]) },
2921     { "f3", offsetof(CPUState, fpr[3]) },
2922     { "f4", offsetof(CPUState, fpr[4]) },
2923     { "f5", offsetof(CPUState, fpr[5]) },
2924     { "f6", offsetof(CPUState, fpr[6]) },
2925     { "f7", offsetof(CPUState, fpr[7]) },
2926     { "f8", offsetof(CPUState, fpr[8]) },
2927     { "f9", offsetof(CPUState, fpr[9]) },
2928     { "f10", offsetof(CPUState, fpr[10]) },
2929     { "f11", offsetof(CPUState, fpr[11]) },
2930     { "f12", offsetof(CPUState, fpr[12]) },
2931     { "f13", offsetof(CPUState, fpr[13]) },
2932     { "f14", offsetof(CPUState, fpr[14]) },
2933     { "f15", offsetof(CPUState, fpr[15]) },
2934     { "f16", offsetof(CPUState, fpr[16]) },
2935     { "f17", offsetof(CPUState, fpr[17]) },
2936     { "f18", offsetof(CPUState, fpr[18]) },
2937     { "f19", offsetof(CPUState, fpr[19]) },
2938     { "f20", offsetof(CPUState, fpr[20]) },
2939     { "f21", offsetof(CPUState, fpr[21]) },
2940     { "f22", offsetof(CPUState, fpr[22]) },
2941     { "f23", offsetof(CPUState, fpr[23]) },
2942     { "f24", offsetof(CPUState, fpr[24]) },
2943     { "f25", offsetof(CPUState, fpr[25]) },
2944     { "f26", offsetof(CPUState, fpr[26]) },
2945     { "f27", offsetof(CPUState, fpr[27]) },
2946     { "f28", offsetof(CPUState, fpr[28]) },
2947     { "f29", offsetof(CPUState, fpr[29]) },
2948     { "f30", offsetof(CPUState, fpr[30]) },
2949     { "f31", offsetof(CPUState, fpr[31]) },
2950     { "fpscr", offsetof(CPUState, fpscr) },
2951     /* Next instruction pointer */
2952     { "nip|pc", offsetof(CPUState, nip) },
2953     { "lr", offsetof(CPUState, lr) },
2954     { "ctr", offsetof(CPUState, ctr) },
2955     { "decr", 0, &monitor_get_decr, },
2956     { "ccr", 0, &monitor_get_ccr, },
2957     /* Machine state register */
2958     { "msr", 0, &monitor_get_msr, },
2959     { "xer", 0, &monitor_get_xer, },
2960     { "tbu", 0, &monitor_get_tbu, },
2961     { "tbl", 0, &monitor_get_tbl, },
2962 #if defined(TARGET_PPC64)
2963     /* Address space register */
2964     { "asr", offsetof(CPUState, asr) },
2965 #endif
2966     /* Segment registers */
2967     { "sdr1", offsetof(CPUState, sdr1) },
2968     { "sr0", offsetof(CPUState, sr[0]) },
2969     { "sr1", offsetof(CPUState, sr[1]) },
2970     { "sr2", offsetof(CPUState, sr[2]) },
2971     { "sr3", offsetof(CPUState, sr[3]) },
2972     { "sr4", offsetof(CPUState, sr[4]) },
2973     { "sr5", offsetof(CPUState, sr[5]) },
2974     { "sr6", offsetof(CPUState, sr[6]) },
2975     { "sr7", offsetof(CPUState, sr[7]) },
2976     { "sr8", offsetof(CPUState, sr[8]) },
2977     { "sr9", offsetof(CPUState, sr[9]) },
2978     { "sr10", offsetof(CPUState, sr[10]) },
2979     { "sr11", offsetof(CPUState, sr[11]) },
2980     { "sr12", offsetof(CPUState, sr[12]) },
2981     { "sr13", offsetof(CPUState, sr[13]) },
2982     { "sr14", offsetof(CPUState, sr[14]) },
2983     { "sr15", offsetof(CPUState, sr[15]) },
2984     /* Too lazy to put BATs and SPRs ... */
2985 #elif defined(TARGET_SPARC)
2986     { "g0", offsetof(CPUState, gregs[0]) },
2987     { "g1", offsetof(CPUState, gregs[1]) },
2988     { "g2", offsetof(CPUState, gregs[2]) },
2989     { "g3", offsetof(CPUState, gregs[3]) },
2990     { "g4", offsetof(CPUState, gregs[4]) },
2991     { "g5", offsetof(CPUState, gregs[5]) },
2992     { "g6", offsetof(CPUState, gregs[6]) },
2993     { "g7", offsetof(CPUState, gregs[7]) },
2994     { "o0", 0, monitor_get_reg },
2995     { "o1", 1, monitor_get_reg },
2996     { "o2", 2, monitor_get_reg },
2997     { "o3", 3, monitor_get_reg },
2998     { "o4", 4, monitor_get_reg },
2999     { "o5", 5, monitor_get_reg },
3000     { "o6", 6, monitor_get_reg },
3001     { "o7", 7, monitor_get_reg },
3002     { "l0", 8, monitor_get_reg },
3003     { "l1", 9, monitor_get_reg },
3004     { "l2", 10, monitor_get_reg },
3005     { "l3", 11, monitor_get_reg },
3006     { "l4", 12, monitor_get_reg },
3007     { "l5", 13, monitor_get_reg },
3008     { "l6", 14, monitor_get_reg },
3009     { "l7", 15, monitor_get_reg },
3010     { "i0", 16, monitor_get_reg },
3011     { "i1", 17, monitor_get_reg },
3012     { "i2", 18, monitor_get_reg },
3013     { "i3", 19, monitor_get_reg },
3014     { "i4", 20, monitor_get_reg },
3015     { "i5", 21, monitor_get_reg },
3016     { "i6", 22, monitor_get_reg },
3017     { "i7", 23, monitor_get_reg },
3018     { "pc", offsetof(CPUState, pc) },
3019     { "npc", offsetof(CPUState, npc) },
3020     { "y", offsetof(CPUState, y) },
3021 #ifndef TARGET_SPARC64
3022     { "psr", 0, &monitor_get_psr, },
3023     { "wim", offsetof(CPUState, wim) },
3024 #endif
3025     { "tbr", offsetof(CPUState, tbr) },
3026     { "fsr", offsetof(CPUState, fsr) },
3027     { "f0", offsetof(CPUState, fpr[0]) },
3028     { "f1", offsetof(CPUState, fpr[1]) },
3029     { "f2", offsetof(CPUState, fpr[2]) },
3030     { "f3", offsetof(CPUState, fpr[3]) },
3031     { "f4", offsetof(CPUState, fpr[4]) },
3032     { "f5", offsetof(CPUState, fpr[5]) },
3033     { "f6", offsetof(CPUState, fpr[6]) },
3034     { "f7", offsetof(CPUState, fpr[7]) },
3035     { "f8", offsetof(CPUState, fpr[8]) },
3036     { "f9", offsetof(CPUState, fpr[9]) },
3037     { "f10", offsetof(CPUState, fpr[10]) },
3038     { "f11", offsetof(CPUState, fpr[11]) },
3039     { "f12", offsetof(CPUState, fpr[12]) },
3040     { "f13", offsetof(CPUState, fpr[13]) },
3041     { "f14", offsetof(CPUState, fpr[14]) },
3042     { "f15", offsetof(CPUState, fpr[15]) },
3043     { "f16", offsetof(CPUState, fpr[16]) },
3044     { "f17", offsetof(CPUState, fpr[17]) },
3045     { "f18", offsetof(CPUState, fpr[18]) },
3046     { "f19", offsetof(CPUState, fpr[19]) },
3047     { "f20", offsetof(CPUState, fpr[20]) },
3048     { "f21", offsetof(CPUState, fpr[21]) },
3049     { "f22", offsetof(CPUState, fpr[22]) },
3050     { "f23", offsetof(CPUState, fpr[23]) },
3051     { "f24", offsetof(CPUState, fpr[24]) },
3052     { "f25", offsetof(CPUState, fpr[25]) },
3053     { "f26", offsetof(CPUState, fpr[26]) },
3054     { "f27", offsetof(CPUState, fpr[27]) },
3055     { "f28", offsetof(CPUState, fpr[28]) },
3056     { "f29", offsetof(CPUState, fpr[29]) },
3057     { "f30", offsetof(CPUState, fpr[30]) },
3058     { "f31", offsetof(CPUState, fpr[31]) },
3059 #ifdef TARGET_SPARC64
3060     { "f32", offsetof(CPUState, fpr[32]) },
3061     { "f34", offsetof(CPUState, fpr[34]) },
3062     { "f36", offsetof(CPUState, fpr[36]) },
3063     { "f38", offsetof(CPUState, fpr[38]) },
3064     { "f40", offsetof(CPUState, fpr[40]) },
3065     { "f42", offsetof(CPUState, fpr[42]) },
3066     { "f44", offsetof(CPUState, fpr[44]) },
3067     { "f46", offsetof(CPUState, fpr[46]) },
3068     { "f48", offsetof(CPUState, fpr[48]) },
3069     { "f50", offsetof(CPUState, fpr[50]) },
3070     { "f52", offsetof(CPUState, fpr[52]) },
3071     { "f54", offsetof(CPUState, fpr[54]) },
3072     { "f56", offsetof(CPUState, fpr[56]) },
3073     { "f58", offsetof(CPUState, fpr[58]) },
3074     { "f60", offsetof(CPUState, fpr[60]) },
3075     { "f62", offsetof(CPUState, fpr[62]) },
3076     { "asi", offsetof(CPUState, asi) },
3077     { "pstate", offsetof(CPUState, pstate) },
3078     { "cansave", offsetof(CPUState, cansave) },
3079     { "canrestore", offsetof(CPUState, canrestore) },
3080     { "otherwin", offsetof(CPUState, otherwin) },
3081     { "wstate", offsetof(CPUState, wstate) },
3082     { "cleanwin", offsetof(CPUState, cleanwin) },
3083     { "fprs", offsetof(CPUState, fprs) },
3084 #endif
3085 #endif
3086     { NULL },
3087 };
3088
3089 static void expr_error(Monitor *mon, const char *msg)
3090 {
3091     monitor_printf(mon, "%s\n", msg);
3092     longjmp(expr_env, 1);
3093 }
3094
3095 /* return 0 if OK, -1 if not found */
3096 static int get_monitor_def(target_long *pval, const char *name)
3097 {
3098     const MonitorDef *md;
3099     void *ptr;
3100
3101     for(md = monitor_defs; md->name != NULL; md++) {
3102         if (compare_cmd(name, md->name)) {
3103             if (md->get_value) {
3104                 *pval = md->get_value(md, md->offset);
3105             } else {
3106                 CPUState *env = mon_get_cpu();
3107                 ptr = (uint8_t *)env + md->offset;
3108                 switch(md->type) {
3109                 case MD_I32:
3110                     *pval = *(int32_t *)ptr;
3111                     break;
3112                 case MD_TLONG:
3113                     *pval = *(target_long *)ptr;
3114                     break;
3115                 default:
3116                     *pval = 0;
3117                     break;
3118                 }
3119             }
3120             return 0;
3121         }
3122     }
3123     return -1;
3124 }
3125
3126 static void next(void)
3127 {
3128     if (*pch != '\0') {
3129         pch++;
3130         while (qemu_isspace(*pch))
3131             pch++;
3132     }
3133 }
3134
3135 static int64_t expr_sum(Monitor *mon);
3136
3137 static int64_t expr_unary(Monitor *mon)
3138 {
3139     int64_t n;
3140     char *p;
3141     int ret;
3142
3143     switch(*pch) {
3144     case '+':
3145         next();
3146         n = expr_unary(mon);
3147         break;
3148     case '-':
3149         next();
3150         n = -expr_unary(mon);
3151         break;
3152     case '~':
3153         next();
3154         n = ~expr_unary(mon);
3155         break;
3156     case '(':
3157         next();
3158         n = expr_sum(mon);
3159         if (*pch != ')') {
3160             expr_error(mon, "')' expected");
3161         }
3162         next();
3163         break;
3164     case '\'':
3165         pch++;
3166         if (*pch == '\0')
3167             expr_error(mon, "character constant expected");
3168         n = *pch;
3169         pch++;
3170         if (*pch != '\'')
3171             expr_error(mon, "missing terminating \' character");
3172         next();
3173         break;
3174     case '$':
3175         {
3176             char buf[128], *q;
3177             target_long reg=0;
3178
3179             pch++;
3180             q = buf;
3181             while ((*pch >= 'a' && *pch <= 'z') ||
3182                    (*pch >= 'A' && *pch <= 'Z') ||
3183                    (*pch >= '0' && *pch <= '9') ||
3184                    *pch == '_' || *pch == '.') {
3185                 if ((q - buf) < sizeof(buf) - 1)
3186                     *q++ = *pch;
3187                 pch++;
3188             }
3189             while (qemu_isspace(*pch))
3190                 pch++;
3191             *q = 0;
3192             ret = get_monitor_def(&reg, buf);
3193             if (ret < 0)
3194                 expr_error(mon, "unknown register");
3195             n = reg;
3196         }
3197         break;
3198     case '\0':
3199         expr_error(mon, "unexpected end of expression");
3200         n = 0;
3201         break;
3202     default:
3203 #if TARGET_PHYS_ADDR_BITS > 32
3204         n = strtoull(pch, &p, 0);
3205 #else
3206         n = strtoul(pch, &p, 0);
3207 #endif
3208         if (pch == p) {
3209             expr_error(mon, "invalid char in expression");
3210         }
3211         pch = p;
3212         while (qemu_isspace(*pch))
3213             pch++;
3214         break;
3215     }
3216     return n;
3217 }
3218
3219
3220 static int64_t expr_prod(Monitor *mon)
3221 {
3222     int64_t val, val2;
3223     int op;
3224
3225     val = expr_unary(mon);
3226     for(;;) {
3227         op = *pch;
3228         if (op != '*' && op != '/' && op != '%')
3229             break;
3230         next();
3231         val2 = expr_unary(mon);
3232         switch(op) {
3233         default:
3234         case '*':
3235             val *= val2;
3236             break;
3237         case '/':
3238         case '%':
3239             if (val2 == 0)
3240                 expr_error(mon, "division by zero");
3241             if (op == '/')
3242                 val /= val2;
3243             else
3244                 val %= val2;
3245             break;
3246         }
3247     }
3248     return val;
3249 }
3250
3251 static int64_t expr_logic(Monitor *mon)
3252 {
3253     int64_t val, val2;
3254     int op;
3255
3256     val = expr_prod(mon);
3257     for(;;) {
3258         op = *pch;
3259         if (op != '&' && op != '|' && op != '^')
3260             break;
3261         next();
3262         val2 = expr_prod(mon);
3263         switch(op) {
3264         default:
3265         case '&':
3266             val &= val2;
3267             break;
3268         case '|':
3269             val |= val2;
3270             break;
3271         case '^':
3272             val ^= val2;
3273             break;
3274         }
3275     }
3276     return val;
3277 }
3278
3279 static int64_t expr_sum(Monitor *mon)
3280 {
3281     int64_t val, val2;
3282     int op;
3283
3284     val = expr_logic(mon);
3285     for(;;) {
3286         op = *pch;
3287         if (op != '+' && op != '-')
3288             break;
3289         next();
3290         val2 = expr_logic(mon);
3291         if (op == '+')
3292             val += val2;
3293         else
3294             val -= val2;
3295     }
3296     return val;
3297 }
3298
3299 static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
3300 {
3301     pch = *pp;
3302     if (setjmp(expr_env)) {
3303         *pp = pch;
3304         return -1;
3305     }
3306     while (qemu_isspace(*pch))
3307         pch++;
3308     *pval = expr_sum(mon);
3309     *pp = pch;
3310     return 0;
3311 }
3312
3313 static int get_double(Monitor *mon, double *pval, const char **pp)
3314 {
3315     const char *p = *pp;
3316     char *tailp;
3317     double d;
3318
3319     d = strtod(p, &tailp);
3320     if (tailp == p) {
3321         monitor_printf(mon, "Number expected\n");
3322         return -1;
3323     }
3324     if (d != d || d - d != 0) {
3325         /* NaN or infinity */
3326         monitor_printf(mon, "Bad number\n");
3327         return -1;
3328     }
3329     *pval = d;
3330     *pp = tailp;
3331     return 0;
3332 }
3333
3334 static int get_str(char *buf, int buf_size, const char **pp)
3335 {
3336     const char *p;
3337     char *q;
3338     int c;
3339
3340     q = buf;
3341     p = *pp;
3342     while (qemu_isspace(*p))
3343         p++;
3344     if (*p == '\0') {
3345     fail:
3346         *q = '\0';
3347         *pp = p;
3348         return -1;
3349     }
3350     if (*p == '\"') {
3351         p++;
3352         while (*p != '\0' && *p != '\"') {
3353             if (*p == '\\') {
3354                 p++;
3355                 c = *p++;
3356                 switch(c) {
3357                 case 'n':
3358                     c = '\n';
3359                     break;
3360                 case 'r':
3361                     c = '\r';
3362                     break;
3363                 case '\\':
3364                 case '\'':
3365                 case '\"':
3366                     break;
3367                 default:
3368                     qemu_printf("unsupported escape code: '\\%c'\n", c);
3369                     goto fail;
3370                 }
3371                 if ((q - buf) < buf_size - 1) {
3372                     *q++ = c;
3373                 }
3374             } else {
3375                 if ((q - buf) < buf_size - 1) {
3376                     *q++ = *p;
3377                 }
3378                 p++;
3379             }
3380         }
3381         if (*p != '\"') {
3382             qemu_printf("unterminated string\n");
3383             goto fail;
3384         }
3385         p++;
3386     } else {
3387         while (*p != '\0' && !qemu_isspace(*p)) {
3388             if ((q - buf) < buf_size - 1) {
3389                 *q++ = *p;
3390             }
3391             p++;
3392         }
3393     }
3394     *q = '\0';
3395     *pp = p;
3396     return 0;
3397 }
3398
3399 /*
3400  * Store the command-name in cmdname, and return a pointer to
3401  * the remaining of the command string.
3402  */
3403 static const char *get_command_name(const char *cmdline,
3404                                     char *cmdname, size_t nlen)
3405 {
3406     size_t len;
3407     const char *p, *pstart;
3408
3409     p = cmdline;
3410     while (qemu_isspace(*p))
3411         p++;
3412     if (*p == '\0')
3413         return NULL;
3414     pstart = p;
3415     while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
3416         p++;
3417     len = p - pstart;
3418     if (len > nlen - 1)
3419         len = nlen - 1;
3420     memcpy(cmdname, pstart, len);
3421     cmdname[len] = '\0';
3422     return p;
3423 }
3424
3425 /**
3426  * Read key of 'type' into 'key' and return the current
3427  * 'type' pointer.
3428  */
3429 static char *key_get_info(const char *type, char **key)
3430 {
3431     size_t len;
3432     char *p, *str;
3433
3434     if (*type == ',')
3435         type++;
3436
3437     p = strchr(type, ':');
3438     if (!p) {
3439         *key = NULL;
3440         return NULL;
3441     }
3442     len = p - type;
3443
3444     str = qemu_malloc(len + 1);
3445     memcpy(str, type, len);
3446     str[len] = '\0';
3447
3448     *key = str;
3449     return ++p;
3450 }
3451
3452 static int default_fmt_format = 'x';
3453 static int default_fmt_size = 4;
3454
3455 #define MAX_ARGS 16
3456
3457 static int is_valid_option(const char *c, const char *typestr)
3458 {
3459     char option[3];
3460
3461     option[0] = '-';
3462     option[1] = *c;
3463     option[2] = '\0';
3464
3465     typestr = strstr(typestr, option);
3466     return (typestr != NULL);
3467 }
3468
3469 static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
3470                                               const char *cmdname)
3471 {
3472     const mon_cmd_t *cmd;
3473
3474     for (cmd = disp_table; cmd->name != NULL; cmd++) {
3475         if (compare_cmd(cmdname, cmd->name)) {
3476             return cmd;
3477         }
3478     }
3479
3480     return NULL;
3481 }
3482
3483 static const mon_cmd_t *monitor_find_command(const char *cmdname)
3484 {
3485     return search_dispatch_table(mon_cmds, cmdname);
3486 }
3487
3488 static const mon_cmd_t *qmp_find_query_cmd(const char *info_item)
3489 {
3490     return search_dispatch_table(qmp_query_cmds, info_item);
3491 }
3492
3493 static const mon_cmd_t *qmp_find_cmd(const char *cmdname)
3494 {
3495     return search_dispatch_table(qmp_cmds, cmdname);
3496 }
3497
3498 static const mon_cmd_t *monitor_parse_command(Monitor *mon,
3499                                               const char *cmdline,
3500                                               QDict *qdict)
3501 {
3502     const char *p, *typestr;
3503     int c;
3504     const mon_cmd_t *cmd;
3505     char cmdname[256];
3506     char buf[1024];
3507     char *key;
3508
3509 #ifdef DEBUG
3510     monitor_printf(mon, "command='%s'\n", cmdline);
3511 #endif
3512
3513     /* extract the command name */
3514     p = get_command_name(cmdline, cmdname, sizeof(cmdname));
3515     if (!p)
3516         return NULL;
3517
3518     cmd = monitor_find_command(cmdname);
3519     if (!cmd) {
3520         monitor_printf(mon, "unknown command: '%s'\n", cmdname);
3521         return NULL;
3522     }
3523
3524     /* parse the parameters */
3525     typestr = cmd->args_type;
3526     for(;;) {
3527         typestr = key_get_info(typestr, &key);
3528         if (!typestr)
3529             break;
3530         c = *typestr;
3531         typestr++;
3532         switch(c) {
3533         case 'F':
3534         case 'B':
3535         case 's':
3536             {
3537                 int ret;
3538
3539                 while (qemu_isspace(*p))
3540                     p++;
3541                 if (*typestr == '?') {
3542                     typestr++;
3543                     if (*p == '\0') {
3544                         /* no optional string: NULL argument */
3545                         break;
3546                     }
3547                 }
3548                 ret = get_str(buf, sizeof(buf), &p);
3549                 if (ret < 0) {
3550                     switch(c) {
3551                     case 'F':
3552                         monitor_printf(mon, "%s: filename expected\n",
3553                                        cmdname);
3554                         break;
3555                     case 'B':
3556                         monitor_printf(mon, "%s: block device name expected\n",
3557                                        cmdname);
3558                         break;
3559                     default:
3560                         monitor_printf(mon, "%s: string expected\n", cmdname);
3561                         break;
3562                     }
3563                     goto fail;
3564                 }
3565                 qdict_put(qdict, key, qstring_from_str(buf));
3566             }
3567             break;
3568         case 'O':
3569             {
3570                 QemuOptsList *opts_list;
3571                 QemuOpts *opts;
3572
3573                 opts_list = qemu_find_opts(key);
3574                 if (!opts_list || opts_list->desc->name) {
3575                     goto bad_type;
3576                 }
3577                 while (qemu_isspace(*p)) {
3578                     p++;
3579                 }
3580                 if (!*p)
3581                     break;
3582                 if (get_str(buf, sizeof(buf), &p) < 0) {
3583                     goto fail;
3584                 }
3585                 opts = qemu_opts_parse(opts_list, buf, 1);
3586                 if (!opts) {
3587                     goto fail;
3588                 }
3589                 qemu_opts_to_qdict(opts, qdict);
3590                 qemu_opts_del(opts);
3591             }
3592             break;
3593         case '/':
3594             {
3595                 int count, format, size;
3596
3597                 while (qemu_isspace(*p))
3598                     p++;
3599                 if (*p == '/') {
3600                     /* format found */
3601                     p++;
3602                     count = 1;
3603                     if (qemu_isdigit(*p)) {
3604                         count = 0;
3605                         while (qemu_isdigit(*p)) {
3606                             count = count * 10 + (*p - '0');
3607                             p++;
3608                         }
3609                     }
3610                     size = -1;
3611                     format = -1;
3612                     for(;;) {
3613                         switch(*p) {
3614                         case 'o':
3615                         case 'd':
3616                         case 'u':
3617                         case 'x':
3618                         case 'i':
3619                         case 'c':
3620                             format = *p++;
3621                             break;
3622                         case 'b':
3623                             size = 1;
3624                             p++;
3625                             break;
3626                         case 'h':
3627                             size = 2;
3628                             p++;
3629                             break;
3630                         case 'w':
3631                             size = 4;
3632                             p++;
3633                             break;
3634                         case 'g':
3635                         case 'L':
3636                             size = 8;
3637                             p++;
3638                             break;
3639                         default:
3640                             goto next;
3641                         }
3642                     }
3643                 next:
3644                     if (*p != '\0' && !qemu_isspace(*p)) {
3645                         monitor_printf(mon, "invalid char in format: '%c'\n",
3646                                        *p);
3647                         goto fail;
3648                     }
3649                     if (format < 0)
3650                         format = default_fmt_format;
3651                     if (format != 'i') {
3652                         /* for 'i', not specifying a size gives -1 as size */
3653                         if (size < 0)
3654                             size = default_fmt_size;
3655                         default_fmt_size = size;
3656                     }
3657                     default_fmt_format = format;
3658                 } else {
3659                     count = 1;
3660                     format = default_fmt_format;
3661                     if (format != 'i') {
3662                         size = default_fmt_size;
3663                     } else {
3664                         size = -1;
3665                     }
3666                 }
3667                 qdict_put(qdict, "count", qint_from_int(count));
3668                 qdict_put(qdict, "format", qint_from_int(format));
3669                 qdict_put(qdict, "size", qint_from_int(size));
3670             }
3671             break;
3672         case 'i':
3673         case 'l':
3674         case 'M':
3675             {
3676                 int64_t val;
3677
3678                 while (qemu_isspace(*p))
3679                     p++;
3680                 if (*typestr == '?' || *typestr == '.') {
3681                     if (*typestr == '?') {
3682                         if (*p == '\0') {
3683                             typestr++;
3684                             break;
3685                         }
3686                     } else {
3687                         if (*p == '.') {
3688                             p++;
3689                             while (qemu_isspace(*p))
3690                                 p++;
3691                         } else {
3692                             typestr++;
3693                             break;
3694                         }
3695                     }
3696                     typestr++;
3697                 }
3698                 if (get_expr(mon, &val, &p))
3699                     goto fail;
3700                 /* Check if 'i' is greater than 32-bit */
3701                 if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
3702                     monitor_printf(mon, "\'%s\' has failed: ", cmdname);
3703                     monitor_printf(mon, "integer is for 32-bit values\n");
3704                     goto fail;
3705                 } else if (c == 'M') {
3706                     val <<= 20;
3707                 }
3708                 qdict_put(qdict, key, qint_from_int(val));
3709             }
3710             break;
3711         case 'o':
3712             {
3713                 ssize_t val;
3714                 char *end;
3715
3716                 while (qemu_isspace(*p)) {
3717                     p++;
3718                 }
3719                 if (*typestr == '?') {
3720                     typestr++;
3721                     if (*p == '\0') {
3722                         break;
3723                     }
3724                 }
3725                 val = strtosz(p, &end);
3726                 if (val < 0) {
3727                     monitor_printf(mon, "invalid size\n");
3728                     goto fail;
3729                 }
3730                 qdict_put(qdict, key, qint_from_int(val));
3731                 p = end;
3732             }
3733             break;
3734         case 'f':
3735         case 'T':
3736             {
3737                 double val;
3738
3739                 while (qemu_isspace(*p))
3740                     p++;
3741                 if (*typestr == '?') {
3742                     typestr++;
3743                     if (*p == '\0') {
3744                         break;
3745                     }
3746                 }
3747                 if (get_double(mon, &val, &p) < 0) {
3748                     goto fail;
3749                 }
3750                 if (c == 'f' && *p) {
3751                     switch (*p) {
3752                     case 'K': case 'k':
3753                         val *= 1 << 10; p++; break;
3754                     case 'M': case 'm':
3755                         val *= 1 << 20; p++; break;
3756                     case 'G': case 'g':
3757                         val *= 1 << 30; p++; break;
3758                     }
3759                 }
3760                 if (c == 'T' && p[0] && p[1] == 's') {
3761                     switch (*p) {
3762                     case 'm':
3763                         val /= 1e3; p += 2; break;
3764                     case 'u':
3765                         val /= 1e6; p += 2; break;
3766                     case 'n':
3767                         val /= 1e9; p += 2; break;
3768                     }
3769                 }
3770                 if (*p && !qemu_isspace(*p)) {
3771                     monitor_printf(mon, "Unknown unit suffix\n");
3772                     goto fail;
3773                 }
3774                 qdict_put(qdict, key, qfloat_from_double(val));
3775             }
3776             break;
3777         case 'b':
3778             {
3779                 const char *beg;
3780                 int val;
3781
3782                 while (qemu_isspace(*p)) {
3783                     p++;
3784                 }
3785                 beg = p;
3786                 while (qemu_isgraph(*p)) {
3787                     p++;
3788                 }
3789                 if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
3790                     val = 1;
3791                 } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
3792                     val = 0;
3793                 } else {
3794                     monitor_printf(mon, "Expected 'on' or 'off'\n");
3795                     goto fail;
3796                 }
3797                 qdict_put(qdict, key, qbool_from_int(val));
3798             }
3799             break;
3800         case '-':
3801             {
3802                 const char *tmp = p;
3803                 int skip_key = 0;
3804                 /* option */
3805
3806                 c = *typestr++;
3807                 if (c == '\0')
3808                     goto bad_type;
3809                 while (qemu_isspace(*p))
3810                     p++;
3811                 if (*p == '-') {
3812                     p++;
3813                     if(c != *p) {
3814                         if(!is_valid_option(p, typestr)) {
3815
3816                             monitor_printf(mon, "%s: unsupported option -%c\n",
3817                                            cmdname, *p);
3818                             goto fail;
3819                         } else {
3820                             skip_key = 1;
3821                         }
3822                     }
3823                     if(skip_key) {
3824                         p = tmp;
3825                     } else {
3826                         /* has option */
3827                         p++;
3828                         qdict_put(qdict, key, qbool_from_int(1));
3829                     }
3830                 }
3831             }
3832             break;
3833         default:
3834         bad_type:
3835             monitor_printf(mon, "%s: unknown type '%c'\n", cmdname, c);
3836             goto fail;
3837         }
3838         qemu_free(key);
3839         key = NULL;
3840     }
3841     /* check that all arguments were parsed */
3842     while (qemu_isspace(*p))
3843         p++;
3844     if (*p != '\0') {
3845         monitor_printf(mon, "%s: extraneous characters at the end of line\n",
3846                        cmdname);
3847         goto fail;
3848     }
3849
3850     return cmd;
3851
3852 fail:
3853     qemu_free(key);
3854     return NULL;
3855 }
3856
3857 void monitor_set_error(Monitor *mon, QError *qerror)
3858 {
3859     /* report only the first error */
3860     if (!mon->error) {
3861         mon->error = qerror;
3862     } else {
3863         MON_DEBUG("Additional error report at %s:%d\n",
3864                   qerror->file, qerror->linenr);
3865         QDECREF(qerror);
3866     }
3867 }
3868
3869 static void handler_audit(Monitor *mon, const mon_cmd_t *cmd, int ret)
3870 {
3871     if (monitor_ctrl_mode(mon)) {
3872         if (ret && !monitor_has_error(mon)) {
3873             /*
3874              * If it returns failure, it must have passed on error.
3875              *
3876              * Action: Report an internal error to the client if in QMP.
3877              */
3878             qerror_report(QERR_UNDEFINED_ERROR);
3879             MON_DEBUG("command '%s' returned failure but did not pass an error\n",
3880                       cmd->name);
3881         }
3882
3883 #ifdef CONFIG_DEBUG_MONITOR
3884         if (!ret && monitor_has_error(mon)) {
3885             /*
3886              * If it returns success, it must not have passed an error.
3887              *
3888              * Action: Report the passed error to the client.
3889              */
3890             MON_DEBUG("command '%s' returned success but passed an error\n",
3891                       cmd->name);
3892         }
3893
3894         if (mon_print_count_get(mon) > 0 && strcmp(cmd->name, "info") != 0) {
3895             /*
3896              * Handlers should not call Monitor print functions.
3897              *
3898              * Action: Ignore them in QMP.
3899              *
3900              * (XXX: we don't check any 'info' or 'query' command here
3901              * because the user print function _is_ called by do_info(), hence
3902              * we will trigger this check. This problem will go away when we
3903              * make 'query' commands real and kill do_info())
3904              */
3905             MON_DEBUG("command '%s' called print functions %d time(s)\n",
3906                       cmd->name, mon_print_count_get(mon));
3907         }
3908 #endif
3909     } else {
3910         assert(!monitor_has_error(mon));
3911         QDECREF(mon->error);
3912         mon->error = NULL;
3913     }
3914 }
3915
3916 static void handle_user_command(Monitor *mon, const char *cmdline)
3917 {
3918     QDict *qdict;
3919     const mon_cmd_t *cmd;
3920
3921     qdict = qdict_new();
3922
3923     cmd = monitor_parse_command(mon, cmdline, qdict);
3924     if (!cmd)
3925         goto out;
3926
3927     if (handler_is_async(cmd)) {
3928         user_async_cmd_handler(mon, cmd, qdict);
3929     } else if (handler_is_qobject(cmd)) {
3930         QObject *data = NULL;
3931
3932         /* XXX: ignores the error code */
3933         cmd->mhandler.cmd_new(mon, qdict, &data);
3934         assert(!monitor_has_error(mon));
3935         if (data) {
3936             cmd->user_print(mon, data);
3937             qobject_decref(data);
3938         }
3939     } else {
3940         cmd->mhandler.cmd(mon, qdict);
3941     }
3942
3943 out:
3944     QDECREF(qdict);
3945 }
3946
3947 static void cmd_completion(const char *name, const char *list)
3948 {
3949     const char *p, *pstart;
3950     char cmd[128];
3951     int len;
3952
3953     p = list;
3954     for(;;) {
3955         pstart = p;
3956         p = strchr(p, '|');
3957         if (!p)
3958             p = pstart + strlen(pstart);
3959         len = p - pstart;
3960         if (len > sizeof(cmd) - 2)
3961             len = sizeof(cmd) - 2;
3962         memcpy(cmd, pstart, len);
3963         cmd[len] = '\0';
3964         if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
3965             readline_add_completion(cur_mon->rs, cmd);
3966         }
3967         if (*p == '\0')
3968             break;
3969         p++;
3970     }
3971 }
3972
3973 static void file_completion(const char *input)
3974 {
3975     DIR *ffs;
3976     struct dirent *d;
3977     char path[1024];
3978     char file[1024], file_prefix[1024];
3979     int input_path_len;
3980     const char *p;
3981
3982     p = strrchr(input, '/');
3983     if (!p) {
3984         input_path_len = 0;
3985         pstrcpy(file_prefix, sizeof(file_prefix), input);
3986         pstrcpy(path, sizeof(path), ".");
3987     } else {
3988         input_path_len = p - input + 1;
3989         memcpy(path, input, input_path_len);
3990         if (input_path_len > sizeof(path) - 1)
3991             input_path_len = sizeof(path) - 1;
3992         path[input_path_len] = '\0';
3993         pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
3994     }
3995 #ifdef DEBUG_COMPLETION
3996     monitor_printf(cur_mon, "input='%s' path='%s' prefix='%s'\n",
3997                    input, path, file_prefix);
3998 #endif
3999     ffs = opendir(path);
4000     if (!ffs)
4001         return;
4002     for(;;) {
4003         struct stat sb;
4004         d = readdir(ffs);
4005         if (!d)
4006             break;
4007
4008         if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
4009             continue;
4010         }
4011
4012         if (strstart(d->d_name, file_prefix, NULL)) {
4013             memcpy(file, input, input_path_len);
4014             if (input_path_len < sizeof(file))
4015                 pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
4016                         d->d_name);
4017             /* stat the file to find out if it's a directory.
4018              * In that case add a slash to speed up typing long paths
4019              */
4020             stat(file, &sb);
4021             if(S_ISDIR(sb.st_mode))
4022                 pstrcat(file, sizeof(file), "/");
4023             readline_add_completion(cur_mon->rs, file);
4024         }
4025     }
4026     closedir(ffs);
4027 }
4028
4029 static void block_completion_it(void *opaque, BlockDriverState *bs)
4030 {
4031     const char *name = bdrv_get_device_name(bs);
4032     const char *input = opaque;
4033
4034     if (input[0] == '\0' ||
4035         !strncmp(name, (char *)input, strlen(input))) {
4036         readline_add_completion(cur_mon->rs, name);
4037     }
4038 }
4039
4040 /* NOTE: this parser is an approximate form of the real command parser */
4041 static void parse_cmdline(const char *cmdline,
4042                          int *pnb_args, char **args)
4043 {
4044     const char *p;
4045     int nb_args, ret;
4046     char buf[1024];
4047
4048     p = cmdline;
4049     nb_args = 0;
4050     for(;;) {
4051         while (qemu_isspace(*p))
4052             p++;
4053         if (*p == '\0')
4054             break;
4055         if (nb_args >= MAX_ARGS)
4056             break;
4057         ret = get_str(buf, sizeof(buf), &p);
4058         args[nb_args] = qemu_strdup(buf);
4059         nb_args++;
4060         if (ret < 0)
4061             break;
4062     }
4063     *pnb_args = nb_args;
4064 }
4065
4066 static const char *next_arg_type(const char *typestr)
4067 {
4068     const char *p = strchr(typestr, ':');
4069     return (p != NULL ? ++p : typestr);
4070 }
4071
4072 static void monitor_find_completion(const char *cmdline)
4073 {
4074     const char *cmdname;
4075     char *args[MAX_ARGS];
4076     int nb_args, i, len;
4077     const char *ptype, *str;
4078     const mon_cmd_t *cmd;
4079     const KeyDef *key;
4080
4081     parse_cmdline(cmdline, &nb_args, args);
4082 #ifdef DEBUG_COMPLETION
4083     for(i = 0; i < nb_args; i++) {
4084         monitor_printf(cur_mon, "arg%d = '%s'\n", i, (char *)args[i]);
4085     }
4086 #endif
4087
4088     /* if the line ends with a space, it means we want to complete the
4089        next arg */
4090     len = strlen(cmdline);
4091     if (len > 0 && qemu_isspace(cmdline[len - 1])) {
4092         if (nb_args >= MAX_ARGS) {
4093             goto cleanup;
4094         }
4095         args[nb_args++] = qemu_strdup("");
4096     }
4097     if (nb_args <= 1) {
4098         /* command completion */
4099         if (nb_args == 0)
4100             cmdname = "";
4101         else
4102             cmdname = args[0];
4103         readline_set_completion_index(cur_mon->rs, strlen(cmdname));
4104         for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
4105             cmd_completion(cmdname, cmd->name);
4106         }
4107     } else {
4108         /* find the command */
4109         for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4110             if (compare_cmd(args[0], cmd->name)) {
4111                 break;
4112             }
4113         }
4114         if (!cmd->name) {
4115             goto cleanup;
4116         }
4117
4118         ptype = next_arg_type(cmd->args_type);
4119         for(i = 0; i < nb_args - 2; i++) {
4120             if (*ptype != '\0') {
4121                 ptype = next_arg_type(ptype);
4122                 while (*ptype == '?')
4123                     ptype = next_arg_type(ptype);
4124             }
4125         }
4126         str = args[nb_args - 1];
4127         if (*ptype == '-' && ptype[1] != '\0') {
4128             ptype = next_arg_type(ptype);
4129         }
4130         switch(*ptype) {
4131         case 'F':
4132             /* file completion */
4133             readline_set_completion_index(cur_mon->rs, strlen(str));
4134             file_completion(str);
4135             break;
4136         case 'B':
4137             /* block device name completion */
4138             readline_set_completion_index(cur_mon->rs, strlen(str));
4139             bdrv_iterate(block_completion_it, (void *)str);
4140             break;
4141         case 's':
4142             /* XXX: more generic ? */
4143             if (!strcmp(cmd->name, "info")) {
4144                 readline_set_completion_index(cur_mon->rs, strlen(str));
4145                 for(cmd = info_cmds; cmd->name != NULL; cmd++) {
4146                     cmd_completion(str, cmd->name);
4147                 }
4148             } else if (!strcmp(cmd->name, "sendkey")) {
4149                 char *sep = strrchr(str, '-');
4150                 if (sep)
4151                     str = sep + 1;
4152                 readline_set_completion_index(cur_mon->rs, strlen(str));
4153                 for(key = key_defs; key->name != NULL; key++) {
4154                     cmd_completion(str, key->name);
4155                 }
4156             } else if (!strcmp(cmd->name, "help|?")) {
4157                 readline_set_completion_index(cur_mon->rs, strlen(str));
4158                 for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
4159                     cmd_completion(str, cmd->name);
4160                 }
4161             }
4162             break;
4163         default:
4164             break;
4165         }
4166     }
4167
4168 cleanup:
4169     for (i = 0; i < nb_args; i++) {
4170         qemu_free(args[i]);
4171     }
4172 }
4173
4174 static int monitor_can_read(void *opaque)
4175 {
4176     Monitor *mon = opaque;
4177
4178     return (mon->suspend_cnt == 0) ? 1 : 0;
4179 }
4180
4181 static int invalid_qmp_mode(const Monitor *mon, const char *cmd_name)
4182 {
4183     int is_cap = compare_cmd(cmd_name, "qmp_capabilities");
4184     return (qmp_cmd_mode(mon) ? is_cap : !is_cap);
4185 }
4186
4187 /*
4188  * Argument validation rules:
4189  *
4190  * 1. The argument must exist in cmd_args qdict
4191  * 2. The argument type must be the expected one
4192  *
4193  * Special case: If the argument doesn't exist in cmd_args and
4194  *               the QMP_ACCEPT_UNKNOWNS flag is set, then the
4195  *               checking is skipped for it.
4196  */
4197 static int check_client_args_type(const QDict *client_args,
4198                                   const QDict *cmd_args, int flags)
4199 {
4200     const QDictEntry *ent;
4201
4202     for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){
4203         QObject *obj;
4204         QString *arg_type;
4205         const QObject *client_arg = qdict_entry_value(ent);
4206         const char *client_arg_name = qdict_entry_key(ent);
4207
4208         obj = qdict_get(cmd_args, client_arg_name);
4209         if (!obj) {
4210             if (flags & QMP_ACCEPT_UNKNOWNS) {
4211                 /* handler accepts unknowns */
4212                 continue;
4213             }
4214             /* client arg doesn't exist */
4215             qerror_report(QERR_INVALID_PARAMETER, client_arg_name);
4216             return -1;
4217         }
4218
4219         arg_type = qobject_to_qstring(obj);
4220         assert(arg_type != NULL);
4221
4222         /* check if argument's type is correct */
4223         switch (qstring_get_str(arg_type)[0]) {
4224         case 'F':
4225         case 'B':
4226         case 's':
4227             if (qobject_type(client_arg) != QTYPE_QSTRING) {
4228                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4229                               "string");
4230                 return -1;
4231             }
4232         break;
4233         case 'i':
4234         case 'l':
4235         case 'M':
4236         case 'o':
4237             if (qobject_type(client_arg) != QTYPE_QINT) {
4238                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4239                               "int");
4240                 return -1;
4241             }
4242             break;
4243         case 'f':
4244         case 'T':
4245             if (qobject_type(client_arg) != QTYPE_QINT &&
4246                 qobject_type(client_arg) != QTYPE_QFLOAT) {
4247                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4248                               "number");
4249                return -1;
4250             }
4251             break;
4252         case 'b':
4253         case '-':
4254             if (qobject_type(client_arg) != QTYPE_QBOOL) {
4255                 qerror_report(QERR_INVALID_PARAMETER_TYPE, client_arg_name,
4256                               "bool");
4257                return -1;
4258             }
4259             break;
4260         case 'O':
4261             assert(flags & QMP_ACCEPT_UNKNOWNS);
4262             break;
4263         case '/':
4264         case '.':
4265             /*
4266              * These types are not supported by QMP and thus are not
4267              * handled here. Fall through.
4268              */
4269         default:
4270             abort();
4271         }
4272     }
4273
4274     return 0;
4275 }
4276
4277 /*
4278  * - Check if the client has passed all mandatory args
4279  * - Set special flags for argument validation
4280  */
4281 static int check_mandatory_args(const QDict *cmd_args,
4282                                 const QDict *client_args, int *flags)
4283 {
4284     const QDictEntry *ent;
4285
4286     for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) {
4287         const char *cmd_arg_name = qdict_entry_key(ent);
4288         QString *type = qobject_to_qstring(qdict_entry_value(ent));
4289         assert(type != NULL);
4290
4291         if (qstring_get_str(type)[0] == 'O') {
4292             assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0);
4293             *flags |= QMP_ACCEPT_UNKNOWNS;
4294         } else if (qstring_get_str(type)[0] != '-' &&
4295                    qstring_get_str(type)[1] != '?' &&
4296                    !qdict_haskey(client_args, cmd_arg_name)) {
4297             qerror_report(QERR_MISSING_PARAMETER, cmd_arg_name);
4298             return -1;
4299         }
4300     }
4301
4302     return 0;
4303 }
4304
4305 static QDict *qdict_from_args_type(const char *args_type)
4306 {
4307     int i;
4308     QDict *qdict;
4309     QString *key, *type, *cur_qs;
4310
4311     assert(args_type != NULL);
4312
4313     qdict = qdict_new();
4314
4315     if (args_type == NULL || args_type[0] == '\0') {
4316         /* no args, empty qdict */
4317         goto out;
4318     }
4319
4320     key = qstring_new();
4321     type = qstring_new();
4322
4323     cur_qs = key;
4324
4325     for (i = 0;; i++) {
4326         switch (args_type[i]) {
4327             case ',':
4328             case '\0':
4329                 qdict_put(qdict, qstring_get_str(key), type);
4330                 QDECREF(key);
4331                 if (args_type[i] == '\0') {
4332                     goto out;
4333                 }
4334                 type = qstring_new(); /* qdict has ref */
4335                 cur_qs = key = qstring_new();
4336                 break;
4337             case ':':
4338                 cur_qs = type;
4339                 break;
4340             default:
4341                 qstring_append_chr(cur_qs, args_type[i]);
4342                 break;
4343         }
4344     }
4345
4346 out:
4347     return qdict;
4348 }
4349
4350 /*
4351  * Client argument checking rules:
4352  *
4353  * 1. Client must provide all mandatory arguments
4354  * 2. Each argument provided by the client must be expected
4355  * 3. Each argument provided by the client must have the type expected
4356  *    by the command
4357  */
4358 static int qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args)
4359 {
4360     int flags, err;
4361     QDict *cmd_args;
4362
4363     cmd_args = qdict_from_args_type(cmd->args_type);
4364
4365     flags = 0;
4366     err = check_mandatory_args(cmd_args, client_args, &flags);
4367     if (err) {
4368         goto out;
4369     }
4370
4371     err = check_client_args_type(client_args, cmd_args, flags);
4372
4373 out:
4374     QDECREF(cmd_args);
4375     return err;
4376 }
4377
4378 /*
4379  * Input object checking rules
4380  *
4381  * 1. Input object must be a dict
4382  * 2. The "execute" key must exist
4383  * 3. The "execute" key must be a string
4384  * 4. If the "arguments" key exists, it must be a dict
4385  * 5. If the "id" key exists, it can be anything (ie. json-value)
4386  * 6. Any argument not listed above is considered invalid
4387  */
4388 static QDict *qmp_check_input_obj(QObject *input_obj)
4389 {
4390     const QDictEntry *ent;
4391     int has_exec_key = 0;
4392     QDict *input_dict;
4393
4394     if (qobject_type(input_obj) != QTYPE_QDICT) {
4395         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "object");
4396         return NULL;
4397     }
4398
4399     input_dict = qobject_to_qdict(input_obj);
4400
4401     for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){
4402         const char *arg_name = qdict_entry_key(ent);
4403         const QObject *arg_obj = qdict_entry_value(ent);
4404
4405         if (!strcmp(arg_name, "execute")) {
4406             if (qobject_type(arg_obj) != QTYPE_QSTRING) {
4407                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "execute",
4408                               "string");
4409                 return NULL;
4410             }
4411             has_exec_key = 1;
4412         } else if (!strcmp(arg_name, "arguments")) {
4413             if (qobject_type(arg_obj) != QTYPE_QDICT) {
4414                 qerror_report(QERR_QMP_BAD_INPUT_OBJECT_MEMBER, "arguments",
4415                               "object");
4416                 return NULL;
4417             }
4418         } else if (!strcmp(arg_name, "id")) {
4419             /* FIXME: check duplicated IDs for async commands */
4420         } else {
4421             qerror_report(QERR_QMP_EXTRA_MEMBER, arg_name);
4422             return NULL;
4423         }
4424     }
4425
4426     if (!has_exec_key) {
4427         qerror_report(QERR_QMP_BAD_INPUT_OBJECT, "execute");
4428         return NULL;
4429     }
4430
4431     return input_dict;
4432 }
4433
4434 static void qmp_call_query_cmd(Monitor *mon, const mon_cmd_t *cmd)
4435 {
4436     QObject *ret_data = NULL;
4437
4438     if (handler_is_async(cmd)) {
4439         qmp_async_info_handler(mon, cmd);
4440         if (monitor_has_error(mon)) {
4441             monitor_protocol_emitter(mon, NULL);
4442         }
4443     } else {
4444         cmd->mhandler.info_new(mon, &ret_data);
4445         if (ret_data) {
4446             monitor_protocol_emitter(mon, ret_data);
4447             qobject_decref(ret_data);
4448         }
4449     }
4450 }
4451
4452 static void qmp_call_cmd(Monitor *mon, const mon_cmd_t *cmd,
4453                          const QDict *params)
4454 {
4455     int ret;
4456     QObject *data = NULL;
4457
4458     mon_print_count_init(mon);
4459
4460     ret = cmd->mhandler.cmd_new(mon, params, &data);
4461     handler_audit(mon, cmd, ret);
4462     monitor_protocol_emitter(mon, data);
4463     qobject_decref(data);
4464 }
4465
4466 static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
4467 {
4468     int err;
4469     QObject *obj;
4470     QDict *input, *args;
4471     const mon_cmd_t *cmd;
4472     Monitor *mon = cur_mon;
4473     const char *cmd_name, *query_cmd;
4474
4475     query_cmd = NULL;
4476     args = input = NULL;
4477
4478     obj = json_parser_parse(tokens, NULL);
4479     if (!obj) {
4480         // FIXME: should be triggered in json_parser_parse()
4481         qerror_report(QERR_JSON_PARSING);
4482         goto err_out;
4483     }
4484
4485     input = qmp_check_input_obj(obj);
4486     if (!input) {
4487         qobject_decref(obj);
4488         goto err_out;
4489     }
4490
4491     mon->mc->id = qdict_get(input, "id");
4492     qobject_incref(mon->mc->id);
4493
4494     cmd_name = qdict_get_str(input, "execute");
4495     if (invalid_qmp_mode(mon, cmd_name)) {
4496         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4497         goto err_out;
4498     }
4499
4500     if (strstart(cmd_name, "query-", &query_cmd)) {
4501         cmd = qmp_find_query_cmd(query_cmd);
4502     } else {
4503         cmd = qmp_find_cmd(cmd_name);
4504     }
4505
4506     if (!cmd) {
4507         qerror_report(QERR_COMMAND_NOT_FOUND, cmd_name);
4508         goto err_out;
4509     }
4510
4511     obj = qdict_get(input, "arguments");
4512     if (!obj) {
4513         args = qdict_new();
4514     } else {
4515         args = qobject_to_qdict(obj);
4516         QINCREF(args);
4517     }
4518
4519     err = qmp_check_client_args(cmd, args);
4520     if (err < 0) {
4521         goto err_out;
4522     }
4523
4524     if (query_cmd) {
4525         qmp_call_query_cmd(mon, cmd);
4526     } else if (handler_is_async(cmd)) {
4527         err = qmp_async_cmd_handler(mon, cmd, args);
4528         if (err) {
4529             /* emit the error response */
4530             goto err_out;
4531         }
4532     } else {
4533         qmp_call_cmd(mon, cmd, args);
4534     }
4535
4536     goto out;
4537
4538 err_out:
4539     monitor_protocol_emitter(mon, NULL);
4540 out:
4541     QDECREF(input);
4542     QDECREF(args);
4543 }
4544
4545 /**
4546  * monitor_control_read(): Read and handle QMP input
4547  */
4548 static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
4549 {
4550     Monitor *old_mon = cur_mon;
4551
4552     cur_mon = opaque;
4553
4554     json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
4555
4556     cur_mon = old_mon;
4557 }
4558
4559 static void monitor_read(void *opaque, const uint8_t *buf, int size)
4560 {
4561     Monitor *old_mon = cur_mon;
4562     int i;
4563
4564     cur_mon = opaque;
4565
4566     if (cur_mon->rs) {
4567         for (i = 0; i < size; i++)
4568             readline_handle_byte(cur_mon->rs, buf[i]);
4569     } else {
4570         if (size == 0 || buf[size - 1] != 0)
4571             monitor_printf(cur_mon, "corrupted command\n");
4572         else
4573             handle_user_command(cur_mon, (char *)buf);
4574     }
4575
4576     cur_mon = old_mon;
4577 }
4578
4579 static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
4580 {
4581     monitor_suspend(mon);
4582     handle_user_command(mon, cmdline);
4583     monitor_resume(mon);
4584 }
4585
4586 int monitor_suspend(Monitor *mon)
4587 {
4588     if (!mon->rs)
4589         return -ENOTTY;
4590     mon->suspend_cnt++;
4591     return 0;
4592 }
4593
4594 void monitor_resume(Monitor *mon)
4595 {
4596     if (!mon->rs)
4597         return;
4598     if (--mon->suspend_cnt == 0)
4599         readline_show_prompt(mon->rs);
4600 }
4601
4602 static QObject *get_qmp_greeting(void)
4603 {
4604     QObject *ver;
4605
4606     do_info_version(NULL, &ver);
4607     return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver);
4608 }
4609
4610 /**
4611  * monitor_control_event(): Print QMP gretting
4612  */
4613 static void monitor_control_event(void *opaque, int event)
4614 {
4615     QObject *data;
4616     Monitor *mon = opaque;
4617
4618     switch (event) {
4619     case CHR_EVENT_OPENED:
4620         mon->mc->command_mode = 0;
4621         json_message_parser_init(&mon->mc->parser, handle_qmp_command);
4622         data = get_qmp_greeting();
4623         monitor_json_emitter(mon, data);
4624         qobject_decref(data);
4625         break;
4626     case CHR_EVENT_CLOSED:
4627         json_message_parser_destroy(&mon->mc->parser);
4628         break;
4629     }
4630 }
4631
4632 static void monitor_event(void *opaque, int event)
4633 {
4634     Monitor *mon = opaque;
4635
4636     switch (event) {
4637     case CHR_EVENT_MUX_IN:
4638         mon->mux_out = 0;
4639         if (mon->reset_seen) {
4640             readline_restart(mon->rs);
4641             monitor_resume(mon);
4642             monitor_flush(mon);
4643         } else {
4644             mon->suspend_cnt = 0;
4645         }
4646         break;
4647
4648     case CHR_EVENT_MUX_OUT:
4649         if (mon->reset_seen) {
4650             if (mon->suspend_cnt == 0) {
4651                 monitor_printf(mon, "\n");
4652             }
4653             monitor_flush(mon);
4654             monitor_suspend(mon);
4655         } else {
4656             mon->suspend_cnt++;
4657         }
4658         mon->mux_out = 1;
4659         break;
4660
4661     case CHR_EVENT_OPENED:
4662         monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
4663                        "information\n", QEMU_VERSION);
4664         if (!mon->mux_out) {
4665             readline_show_prompt(mon->rs);
4666         }
4667         mon->reset_seen = 1;
4668         break;
4669     }
4670 }
4671
4672
4673 /*
4674  * Local variables:
4675  *  c-indent-level: 4
4676  *  c-basic-offset: 4
4677  *  tab-width: 8
4678  * End:
4679  */
4680
4681 void monitor_init(CharDriverState *chr, int flags)
4682 {
4683     static int is_first_init = 1;
4684     Monitor *mon;
4685
4686     if (is_first_init) {
4687         key_timer = qemu_new_timer(vm_clock, release_keys, NULL);
4688         is_first_init = 0;
4689     }
4690
4691     mon = qemu_mallocz(sizeof(*mon));
4692
4693     mon->chr = chr;
4694     mon->flags = flags;
4695     if (flags & MONITOR_USE_READLINE) {
4696         mon->rs = readline_init(mon, monitor_find_completion);
4697         monitor_read_command(mon, 0);
4698     }
4699
4700     if (monitor_ctrl_mode(mon)) {
4701         mon->mc = qemu_mallocz(sizeof(MonitorControl));
4702         /* Control mode requires special handlers */
4703         qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
4704                               monitor_control_event, mon);
4705     } else {
4706         qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
4707                               monitor_event, mon);
4708     }
4709
4710     QLIST_INSERT_HEAD(&mon_list, mon, entry);
4711     if (!default_mon || (flags & MONITOR_IS_DEFAULT))
4712         default_mon = mon;
4713 }
4714
4715 static void bdrv_password_cb(Monitor *mon, const char *password, void *opaque)
4716 {
4717     BlockDriverState *bs = opaque;
4718     int ret = 0;
4719
4720     if (bdrv_set_key(bs, password) != 0) {
4721         monitor_printf(mon, "invalid password\n");
4722         ret = -EPERM;
4723     }
4724     if (mon->password_completion_cb)
4725         mon->password_completion_cb(mon->password_opaque, ret);
4726
4727     monitor_read_command(mon, 1);
4728 }
4729
4730 int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
4731                                 BlockDriverCompletionFunc *completion_cb,
4732                                 void *opaque)
4733 {
4734     int err;
4735
4736     if (!bdrv_key_required(bs)) {
4737         if (completion_cb)
4738             completion_cb(opaque, 0);
4739         return 0;
4740     }
4741
4742     if (monitor_ctrl_mode(mon)) {
4743         qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
4744         return -1;
4745     }
4746
4747     monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
4748                    bdrv_get_encrypted_filename(bs));
4749
4750     mon->password_completion_cb = completion_cb;
4751     mon->password_opaque = opaque;
4752
4753     err = monitor_read_password(mon, bdrv_password_cb, bs);
4754
4755     if (err && completion_cb)
4756         completion_cb(opaque, err);
4757
4758     return err;
4759 }