1 /* 2 * Block layer qmp and info dump related functions 3 * 4 * Copyright (c) 2003-2008 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 25 #include "qemu/osdep.h" 26 #include "block/qapi.h" 27 #include "block/block_int.h" 28 #include "block/throttle-groups.h" 29 #include "block/write-threshold.h" 30 #include "qmp-commands.h" 31 #include "qapi-visit.h" 32 #include "qapi/qobject-output-visitor.h" 33 #include "qapi/qmp/types.h" 34 #include "sysemu/block-backend.h" 35 #include "qemu/cutils.h" 36 37 BlockDeviceInfo *bdrv_block_device_info(BlockBackend *blk, 38 BlockDriverState *bs, Error **errp) 39 { 40 ImageInfo **p_image_info; 41 BlockDriverState *bs0; 42 BlockDeviceInfo *info = g_malloc0(sizeof(*info)); 43 44 info->file = g_strdup(bs->filename); 45 info->ro = bs->read_only; 46 info->drv = g_strdup(bs->drv->format_name); 47 info->encrypted = bs->encrypted; 48 info->encryption_key_missing = false; 49 50 info->cache = g_new(BlockdevCacheInfo, 1); 51 *info->cache = (BlockdevCacheInfo) { 52 .writeback = blk ? blk_enable_write_cache(blk) : true, 53 .direct = !!(bs->open_flags & BDRV_O_NOCACHE), 54 .no_flush = !!(bs->open_flags & BDRV_O_NO_FLUSH), 55 }; 56 57 if (bs->node_name[0]) { 58 info->has_node_name = true; 59 info->node_name = g_strdup(bs->node_name); 60 } 61 62 if (bs->backing_file[0]) { 63 info->has_backing_file = true; 64 info->backing_file = g_strdup(bs->backing_file); 65 } 66 67 info->detect_zeroes = bs->detect_zeroes; 68 69 if (blk && blk_get_public(blk)->throttle_state) { 70 ThrottleConfig cfg; 71 72 throttle_group_get_config(blk, &cfg); 73 74 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 75 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 76 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 77 78 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 79 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 80 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 81 82 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 83 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 84 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 85 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 86 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 87 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 88 89 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 90 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 91 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 92 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 93 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 94 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 95 96 info->has_bps_max_length = info->has_bps_max; 97 info->bps_max_length = 98 cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; 99 info->has_bps_rd_max_length = info->has_bps_rd_max; 100 info->bps_rd_max_length = 101 cfg.buckets[THROTTLE_BPS_READ].burst_length; 102 info->has_bps_wr_max_length = info->has_bps_wr_max; 103 info->bps_wr_max_length = 104 cfg.buckets[THROTTLE_BPS_WRITE].burst_length; 105 106 info->has_iops_max_length = info->has_iops_max; 107 info->iops_max_length = 108 cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; 109 info->has_iops_rd_max_length = info->has_iops_rd_max; 110 info->iops_rd_max_length = 111 cfg.buckets[THROTTLE_OPS_READ].burst_length; 112 info->has_iops_wr_max_length = info->has_iops_wr_max; 113 info->iops_wr_max_length = 114 cfg.buckets[THROTTLE_OPS_WRITE].burst_length; 115 116 info->has_iops_size = cfg.op_size; 117 info->iops_size = cfg.op_size; 118 119 info->has_group = true; 120 info->group = g_strdup(throttle_group_get_name(blk)); 121 } 122 123 info->write_threshold = bdrv_write_threshold_get(bs); 124 125 bs0 = bs; 126 p_image_info = &info->image; 127 info->backing_file_depth = 0; 128 while (1) { 129 Error *local_err = NULL; 130 bdrv_query_image_info(bs0, p_image_info, &local_err); 131 if (local_err) { 132 error_propagate(errp, local_err); 133 qapi_free_BlockDeviceInfo(info); 134 return NULL; 135 } 136 137 if (bs0->drv && bs0->backing) { 138 info->backing_file_depth++; 139 bs0 = bs0->backing->bs; 140 (*p_image_info)->has_backing_image = true; 141 p_image_info = &((*p_image_info)->backing_image); 142 } else { 143 break; 144 } 145 146 /* Skip automatically inserted nodes that the user isn't aware of for 147 * query-block (blk != NULL), but not for query-named-block-nodes */ 148 while (blk && bs0->drv && bs0->implicit) { 149 bs0 = backing_bs(bs0); 150 assert(bs0); 151 } 152 } 153 154 return info; 155 } 156 157 /* 158 * Returns 0 on success, with *p_list either set to describe snapshot 159 * information, or NULL because there are no snapshots. Returns -errno on 160 * error, with *p_list untouched. 161 */ 162 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 163 SnapshotInfoList **p_list, 164 Error **errp) 165 { 166 int i, sn_count; 167 QEMUSnapshotInfo *sn_tab = NULL; 168 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 169 SnapshotInfo *info; 170 171 sn_count = bdrv_snapshot_list(bs, &sn_tab); 172 if (sn_count < 0) { 173 const char *dev = bdrv_get_device_name(bs); 174 switch (sn_count) { 175 case -ENOMEDIUM: 176 error_setg(errp, "Device '%s' is not inserted", dev); 177 break; 178 case -ENOTSUP: 179 error_setg(errp, 180 "Device '%s' does not support internal snapshots", 181 dev); 182 break; 183 default: 184 error_setg_errno(errp, -sn_count, 185 "Can't list snapshots of device '%s'", dev); 186 break; 187 } 188 return sn_count; 189 } 190 191 for (i = 0; i < sn_count; i++) { 192 info = g_new0(SnapshotInfo, 1); 193 info->id = g_strdup(sn_tab[i].id_str); 194 info->name = g_strdup(sn_tab[i].name); 195 info->vm_state_size = sn_tab[i].vm_state_size; 196 info->date_sec = sn_tab[i].date_sec; 197 info->date_nsec = sn_tab[i].date_nsec; 198 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 199 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 200 201 info_list = g_new0(SnapshotInfoList, 1); 202 info_list->value = info; 203 204 /* XXX: waiting for the qapi to support qemu-queue.h types */ 205 if (!cur_item) { 206 head = cur_item = info_list; 207 } else { 208 cur_item->next = info_list; 209 cur_item = info_list; 210 } 211 212 } 213 214 g_free(sn_tab); 215 *p_list = head; 216 return 0; 217 } 218 219 /** 220 * bdrv_query_image_info: 221 * @bs: block device to examine 222 * @p_info: location to store image information 223 * @errp: location to store error information 224 * 225 * Store "flat" image information in @p_info. 226 * 227 * "Flat" means it does *not* query backing image information, 228 * i.e. (*pinfo)->has_backing_image will be set to false and 229 * (*pinfo)->backing_image to NULL even when the image does in fact have 230 * a backing image. 231 * 232 * @p_info will be set only on success. On error, store error in @errp. 233 */ 234 void bdrv_query_image_info(BlockDriverState *bs, 235 ImageInfo **p_info, 236 Error **errp) 237 { 238 int64_t size; 239 const char *backing_filename; 240 BlockDriverInfo bdi; 241 int ret; 242 Error *err = NULL; 243 ImageInfo *info; 244 245 aio_context_acquire(bdrv_get_aio_context(bs)); 246 247 size = bdrv_getlength(bs); 248 if (size < 0) { 249 error_setg_errno(errp, -size, "Can't get image size '%s'", 250 bs->exact_filename); 251 goto out; 252 } 253 254 info = g_new0(ImageInfo, 1); 255 info->filename = g_strdup(bs->filename); 256 info->format = g_strdup(bdrv_get_format_name(bs)); 257 info->virtual_size = size; 258 info->actual_size = bdrv_get_allocated_file_size(bs); 259 info->has_actual_size = info->actual_size >= 0; 260 if (bdrv_is_encrypted(bs)) { 261 info->encrypted = true; 262 info->has_encrypted = true; 263 } 264 if (bdrv_get_info(bs, &bdi) >= 0) { 265 if (bdi.cluster_size != 0) { 266 info->cluster_size = bdi.cluster_size; 267 info->has_cluster_size = true; 268 } 269 info->dirty_flag = bdi.is_dirty; 270 info->has_dirty_flag = true; 271 } 272 info->format_specific = bdrv_get_specific_info(bs); 273 info->has_format_specific = info->format_specific != NULL; 274 275 backing_filename = bs->backing_file; 276 if (backing_filename[0] != '\0') { 277 char *backing_filename2 = g_malloc0(PATH_MAX); 278 info->backing_filename = g_strdup(backing_filename); 279 info->has_backing_filename = true; 280 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 281 if (err) { 282 /* Can't reconstruct the full backing filename, so we must omit 283 * this field and apply a Best Effort to this query. */ 284 g_free(backing_filename2); 285 backing_filename2 = NULL; 286 error_free(err); 287 err = NULL; 288 } 289 290 /* Always report the full_backing_filename if present, even if it's the 291 * same as backing_filename. That they are same is useful info. */ 292 if (backing_filename2) { 293 info->full_backing_filename = g_strdup(backing_filename2); 294 info->has_full_backing_filename = true; 295 } 296 297 if (bs->backing_format[0]) { 298 info->backing_filename_format = g_strdup(bs->backing_format); 299 info->has_backing_filename_format = true; 300 } 301 g_free(backing_filename2); 302 } 303 304 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 305 switch (ret) { 306 case 0: 307 if (info->snapshots) { 308 info->has_snapshots = true; 309 } 310 break; 311 /* recoverable error */ 312 case -ENOMEDIUM: 313 case -ENOTSUP: 314 error_free(err); 315 break; 316 default: 317 error_propagate(errp, err); 318 qapi_free_ImageInfo(info); 319 goto out; 320 } 321 322 *p_info = info; 323 324 out: 325 aio_context_release(bdrv_get_aio_context(bs)); 326 } 327 328 /* @p_info will be set only on success. */ 329 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 330 Error **errp) 331 { 332 BlockInfo *info = g_malloc0(sizeof(*info)); 333 BlockDriverState *bs = blk_bs(blk); 334 char *qdev; 335 336 /* Skip automatically inserted nodes that the user isn't aware of */ 337 while (bs && bs->drv && bs->implicit) { 338 bs = backing_bs(bs); 339 } 340 341 info->device = g_strdup(blk_name(blk)); 342 info->type = g_strdup("unknown"); 343 info->locked = blk_dev_is_medium_locked(blk); 344 info->removable = blk_dev_has_removable_media(blk); 345 346 qdev = blk_get_attached_dev_id(blk); 347 if (qdev && *qdev) { 348 info->has_qdev = true; 349 info->qdev = qdev; 350 } else { 351 g_free(qdev); 352 } 353 354 if (blk_dev_has_tray(blk)) { 355 info->has_tray_open = true; 356 info->tray_open = blk_dev_is_tray_open(blk); 357 } 358 359 if (blk_iostatus_is_enabled(blk)) { 360 info->has_io_status = true; 361 info->io_status = blk_iostatus(blk); 362 } 363 364 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 365 info->has_dirty_bitmaps = true; 366 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 367 } 368 369 if (bs && bs->drv) { 370 info->has_inserted = true; 371 info->inserted = bdrv_block_device_info(blk, bs, errp); 372 if (info->inserted == NULL) { 373 goto err; 374 } 375 } 376 377 *p_info = info; 378 return; 379 380 err: 381 qapi_free_BlockInfo(info); 382 } 383 384 static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 385 { 386 BlockAcctStats *stats = blk_get_stats(blk); 387 BlockAcctTimedStats *ts = NULL; 388 389 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 390 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 391 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 392 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 393 394 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 395 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 396 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 397 398 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 399 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 400 ds->invalid_flush_operations = 401 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 402 403 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 404 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 405 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 406 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 407 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 408 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 409 410 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 411 if (ds->has_idle_time_ns) { 412 ds->idle_time_ns = block_acct_idle_time_ns(stats); 413 } 414 415 ds->account_invalid = stats->account_invalid; 416 ds->account_failed = stats->account_failed; 417 418 while ((ts = block_acct_interval_next(stats, ts))) { 419 BlockDeviceTimedStatsList *timed_stats = 420 g_malloc0(sizeof(*timed_stats)); 421 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 422 timed_stats->next = ds->timed_stats; 423 timed_stats->value = dev_stats; 424 ds->timed_stats = timed_stats; 425 426 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 427 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 428 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 429 430 dev_stats->interval_length = ts->interval_length; 431 432 dev_stats->min_rd_latency_ns = timed_average_min(rd); 433 dev_stats->max_rd_latency_ns = timed_average_max(rd); 434 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 435 436 dev_stats->min_wr_latency_ns = timed_average_min(wr); 437 dev_stats->max_wr_latency_ns = timed_average_max(wr); 438 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 439 440 dev_stats->min_flush_latency_ns = timed_average_min(fl); 441 dev_stats->max_flush_latency_ns = timed_average_max(fl); 442 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 443 444 dev_stats->avg_rd_queue_depth = 445 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 446 dev_stats->avg_wr_queue_depth = 447 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 448 } 449 } 450 451 static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, 452 bool blk_level) 453 { 454 BlockStats *s = NULL; 455 456 s = g_malloc0(sizeof(*s)); 457 s->stats = g_malloc0(sizeof(*s->stats)); 458 459 if (!bs) { 460 return s; 461 } 462 463 /* Skip automatically inserted nodes that the user isn't aware of in 464 * a BlockBackend-level command. Stay at the exact node for a node-level 465 * command. */ 466 while (blk_level && bs->drv && bs->implicit) { 467 bs = backing_bs(bs); 468 assert(bs); 469 } 470 471 if (bdrv_get_node_name(bs)[0]) { 472 s->has_node_name = true; 473 s->node_name = g_strdup(bdrv_get_node_name(bs)); 474 } 475 476 s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); 477 478 if (bs->file) { 479 s->has_parent = true; 480 s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level); 481 } 482 483 if (blk_level && bs->backing) { 484 s->has_backing = true; 485 s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level); 486 } 487 488 return s; 489 } 490 491 BlockInfoList *qmp_query_block(Error **errp) 492 { 493 BlockInfoList *head = NULL, **p_next = &head; 494 BlockBackend *blk; 495 Error *local_err = NULL; 496 497 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 498 BlockInfoList *info; 499 500 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 501 continue; 502 } 503 504 info = g_malloc0(sizeof(*info)); 505 bdrv_query_info(blk, &info->value, &local_err); 506 if (local_err) { 507 error_propagate(errp, local_err); 508 g_free(info); 509 qapi_free_BlockInfoList(head); 510 return NULL; 511 } 512 513 *p_next = info; 514 p_next = &info->next; 515 } 516 517 return head; 518 } 519 520 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 521 bool query_nodes, 522 Error **errp) 523 { 524 BlockStatsList *head = NULL, **p_next = &head; 525 BlockBackend *blk; 526 BlockDriverState *bs; 527 528 /* Just to be safe if query_nodes is not always initialized */ 529 if (has_query_nodes && query_nodes) { 530 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 531 BlockStatsList *info = g_malloc0(sizeof(*info)); 532 AioContext *ctx = bdrv_get_aio_context(bs); 533 534 aio_context_acquire(ctx); 535 info->value = bdrv_query_bds_stats(bs, false); 536 aio_context_release(ctx); 537 538 *p_next = info; 539 p_next = &info->next; 540 } 541 } else { 542 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 543 BlockStatsList *info = g_malloc0(sizeof(*info)); 544 AioContext *ctx = blk_get_aio_context(blk); 545 BlockStats *s; 546 547 aio_context_acquire(ctx); 548 s = bdrv_query_bds_stats(blk_bs(blk), true); 549 s->has_device = true; 550 s->device = g_strdup(blk_name(blk)); 551 bdrv_query_blk_stats(s->stats, blk); 552 aio_context_release(ctx); 553 554 info->value = s; 555 *p_next = info; 556 p_next = &info->next; 557 } 558 } 559 560 return head; 561 } 562 563 #define NB_SUFFIXES 4 564 565 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 566 { 567 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 568 int64_t base; 569 int i; 570 571 if (size <= 999) { 572 snprintf(buf, buf_size, "%" PRId64, size); 573 } else { 574 base = 1024; 575 for (i = 0; i < NB_SUFFIXES; i++) { 576 if (size < (10 * base)) { 577 snprintf(buf, buf_size, "%0.1f%c", 578 (double)size / base, 579 suffixes[i]); 580 break; 581 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 582 snprintf(buf, buf_size, "%" PRId64 "%c", 583 ((size + (base >> 1)) / base), 584 suffixes[i]); 585 break; 586 } 587 base = base * 1024; 588 } 589 } 590 return buf; 591 } 592 593 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 594 QEMUSnapshotInfo *sn) 595 { 596 char buf1[128], date_buf[128], clock_buf[128]; 597 struct tm tm; 598 time_t ti; 599 int64_t secs; 600 601 if (!sn) { 602 func_fprintf(f, 603 "%-10s%-20s%7s%20s%15s", 604 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 605 } else { 606 ti = sn->date_sec; 607 localtime_r(&ti, &tm); 608 strftime(date_buf, sizeof(date_buf), 609 "%Y-%m-%d %H:%M:%S", &tm); 610 secs = sn->vm_clock_nsec / 1000000000; 611 snprintf(clock_buf, sizeof(clock_buf), 612 "%02d:%02d:%02d.%03d", 613 (int)(secs / 3600), 614 (int)((secs / 60) % 60), 615 (int)(secs % 60), 616 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 617 func_fprintf(f, 618 "%-10s%-20s%7s%20s%15s", 619 sn->id_str, sn->name, 620 get_human_readable_size(buf1, sizeof(buf1), 621 sn->vm_state_size), 622 date_buf, 623 clock_buf); 624 } 625 } 626 627 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 628 QDict *dict); 629 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 630 QList *list); 631 632 static void dump_qobject(fprintf_function func_fprintf, void *f, 633 int comp_indent, QObject *obj) 634 { 635 switch (qobject_type(obj)) { 636 case QTYPE_QNUM: { 637 QNum *value = qobject_to_qnum(obj); 638 char *tmp = qnum_to_string(value); 639 func_fprintf(f, "%s", tmp); 640 g_free(tmp); 641 break; 642 } 643 case QTYPE_QSTRING: { 644 QString *value = qobject_to_qstring(obj); 645 func_fprintf(f, "%s", qstring_get_str(value)); 646 break; 647 } 648 case QTYPE_QDICT: { 649 QDict *value = qobject_to_qdict(obj); 650 dump_qdict(func_fprintf, f, comp_indent, value); 651 break; 652 } 653 case QTYPE_QLIST: { 654 QList *value = qobject_to_qlist(obj); 655 dump_qlist(func_fprintf, f, comp_indent, value); 656 break; 657 } 658 case QTYPE_QBOOL: { 659 QBool *value = qobject_to_qbool(obj); 660 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 661 break; 662 } 663 default: 664 abort(); 665 } 666 } 667 668 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 669 QList *list) 670 { 671 const QListEntry *entry; 672 int i = 0; 673 674 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 675 QType type = qobject_type(entry->value); 676 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 677 func_fprintf(f, "%*s[%i]:%c", indentation * 4, "", i, 678 composite ? '\n' : ' '); 679 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 680 if (!composite) { 681 func_fprintf(f, "\n"); 682 } 683 } 684 } 685 686 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 687 QDict *dict) 688 { 689 const QDictEntry *entry; 690 691 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 692 QType type = qobject_type(entry->value); 693 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 694 char *key = g_malloc(strlen(entry->key) + 1); 695 int i; 696 697 /* replace dashes with spaces in key (variable) names */ 698 for (i = 0; entry->key[i]; i++) { 699 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 700 } 701 key[i] = 0; 702 func_fprintf(f, "%*s%s:%c", indentation * 4, "", key, 703 composite ? '\n' : ' '); 704 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 705 if (!composite) { 706 func_fprintf(f, "\n"); 707 } 708 g_free(key); 709 } 710 } 711 712 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 713 ImageInfoSpecific *info_spec) 714 { 715 QObject *obj, *data; 716 Visitor *v = qobject_output_visitor_new(&obj); 717 718 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 719 visit_complete(v, &obj); 720 data = qdict_get(qobject_to_qdict(obj), "data"); 721 dump_qobject(func_fprintf, f, 1, data); 722 qobject_decref(obj); 723 visit_free(v); 724 } 725 726 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 727 ImageInfo *info) 728 { 729 char size_buf[128], dsize_buf[128]; 730 if (!info->has_actual_size) { 731 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 732 } else { 733 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 734 info->actual_size); 735 } 736 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 737 func_fprintf(f, 738 "image: %s\n" 739 "file format: %s\n" 740 "virtual size: %s (%" PRId64 " bytes)\n" 741 "disk size: %s\n", 742 info->filename, info->format, size_buf, 743 info->virtual_size, 744 dsize_buf); 745 746 if (info->has_encrypted && info->encrypted) { 747 func_fprintf(f, "encrypted: yes\n"); 748 } 749 750 if (info->has_cluster_size) { 751 func_fprintf(f, "cluster_size: %" PRId64 "\n", 752 info->cluster_size); 753 } 754 755 if (info->has_dirty_flag && info->dirty_flag) { 756 func_fprintf(f, "cleanly shut down: no\n"); 757 } 758 759 if (info->has_backing_filename) { 760 func_fprintf(f, "backing file: %s", info->backing_filename); 761 if (!info->has_full_backing_filename) { 762 func_fprintf(f, " (cannot determine actual path)"); 763 } else if (strcmp(info->backing_filename, 764 info->full_backing_filename) != 0) { 765 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 766 } 767 func_fprintf(f, "\n"); 768 if (info->has_backing_filename_format) { 769 func_fprintf(f, "backing file format: %s\n", 770 info->backing_filename_format); 771 } 772 } 773 774 if (info->has_snapshots) { 775 SnapshotInfoList *elem; 776 777 func_fprintf(f, "Snapshot list:\n"); 778 bdrv_snapshot_dump(func_fprintf, f, NULL); 779 func_fprintf(f, "\n"); 780 781 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 782 * we convert to the block layer's native QEMUSnapshotInfo for now. 783 */ 784 for (elem = info->snapshots; elem; elem = elem->next) { 785 QEMUSnapshotInfo sn = { 786 .vm_state_size = elem->value->vm_state_size, 787 .date_sec = elem->value->date_sec, 788 .date_nsec = elem->value->date_nsec, 789 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 790 elem->value->vm_clock_nsec, 791 }; 792 793 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 794 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 795 bdrv_snapshot_dump(func_fprintf, f, &sn); 796 func_fprintf(f, "\n"); 797 } 798 } 799 800 if (info->has_format_specific) { 801 func_fprintf(f, "Format specific information:\n"); 802 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 803 } 804 } 805