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_group_member.throttle_state) { 70 ThrottleConfig cfg; 71 BlockBackendPublic *blkp = blk_get_public(blk); 72 73 throttle_group_get_config(&blkp->throttle_group_member, &cfg); 74 75 info->bps = cfg.buckets[THROTTLE_BPS_TOTAL].avg; 76 info->bps_rd = cfg.buckets[THROTTLE_BPS_READ].avg; 77 info->bps_wr = cfg.buckets[THROTTLE_BPS_WRITE].avg; 78 79 info->iops = cfg.buckets[THROTTLE_OPS_TOTAL].avg; 80 info->iops_rd = cfg.buckets[THROTTLE_OPS_READ].avg; 81 info->iops_wr = cfg.buckets[THROTTLE_OPS_WRITE].avg; 82 83 info->has_bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 84 info->bps_max = cfg.buckets[THROTTLE_BPS_TOTAL].max; 85 info->has_bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 86 info->bps_rd_max = cfg.buckets[THROTTLE_BPS_READ].max; 87 info->has_bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 88 info->bps_wr_max = cfg.buckets[THROTTLE_BPS_WRITE].max; 89 90 info->has_iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 91 info->iops_max = cfg.buckets[THROTTLE_OPS_TOTAL].max; 92 info->has_iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 93 info->iops_rd_max = cfg.buckets[THROTTLE_OPS_READ].max; 94 info->has_iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 95 info->iops_wr_max = cfg.buckets[THROTTLE_OPS_WRITE].max; 96 97 info->has_bps_max_length = info->has_bps_max; 98 info->bps_max_length = 99 cfg.buckets[THROTTLE_BPS_TOTAL].burst_length; 100 info->has_bps_rd_max_length = info->has_bps_rd_max; 101 info->bps_rd_max_length = 102 cfg.buckets[THROTTLE_BPS_READ].burst_length; 103 info->has_bps_wr_max_length = info->has_bps_wr_max; 104 info->bps_wr_max_length = 105 cfg.buckets[THROTTLE_BPS_WRITE].burst_length; 106 107 info->has_iops_max_length = info->has_iops_max; 108 info->iops_max_length = 109 cfg.buckets[THROTTLE_OPS_TOTAL].burst_length; 110 info->has_iops_rd_max_length = info->has_iops_rd_max; 111 info->iops_rd_max_length = 112 cfg.buckets[THROTTLE_OPS_READ].burst_length; 113 info->has_iops_wr_max_length = info->has_iops_wr_max; 114 info->iops_wr_max_length = 115 cfg.buckets[THROTTLE_OPS_WRITE].burst_length; 116 117 info->has_iops_size = cfg.op_size; 118 info->iops_size = cfg.op_size; 119 120 info->has_group = true; 121 info->group = 122 g_strdup(throttle_group_get_name(&blkp->throttle_group_member)); 123 } 124 125 info->write_threshold = bdrv_write_threshold_get(bs); 126 127 bs0 = bs; 128 p_image_info = &info->image; 129 info->backing_file_depth = 0; 130 while (1) { 131 Error *local_err = NULL; 132 bdrv_query_image_info(bs0, p_image_info, &local_err); 133 if (local_err) { 134 error_propagate(errp, local_err); 135 qapi_free_BlockDeviceInfo(info); 136 return NULL; 137 } 138 139 if (bs0->drv && bs0->backing) { 140 info->backing_file_depth++; 141 bs0 = bs0->backing->bs; 142 (*p_image_info)->has_backing_image = true; 143 p_image_info = &((*p_image_info)->backing_image); 144 } else { 145 break; 146 } 147 148 /* Skip automatically inserted nodes that the user isn't aware of for 149 * query-block (blk != NULL), but not for query-named-block-nodes */ 150 while (blk && bs0->drv && bs0->implicit) { 151 bs0 = backing_bs(bs0); 152 assert(bs0); 153 } 154 } 155 156 return info; 157 } 158 159 /* 160 * Returns 0 on success, with *p_list either set to describe snapshot 161 * information, or NULL because there are no snapshots. Returns -errno on 162 * error, with *p_list untouched. 163 */ 164 int bdrv_query_snapshot_info_list(BlockDriverState *bs, 165 SnapshotInfoList **p_list, 166 Error **errp) 167 { 168 int i, sn_count; 169 QEMUSnapshotInfo *sn_tab = NULL; 170 SnapshotInfoList *info_list, *cur_item = NULL, *head = NULL; 171 SnapshotInfo *info; 172 173 sn_count = bdrv_snapshot_list(bs, &sn_tab); 174 if (sn_count < 0) { 175 const char *dev = bdrv_get_device_name(bs); 176 switch (sn_count) { 177 case -ENOMEDIUM: 178 error_setg(errp, "Device '%s' is not inserted", dev); 179 break; 180 case -ENOTSUP: 181 error_setg(errp, 182 "Device '%s' does not support internal snapshots", 183 dev); 184 break; 185 default: 186 error_setg_errno(errp, -sn_count, 187 "Can't list snapshots of device '%s'", dev); 188 break; 189 } 190 return sn_count; 191 } 192 193 for (i = 0; i < sn_count; i++) { 194 info = g_new0(SnapshotInfo, 1); 195 info->id = g_strdup(sn_tab[i].id_str); 196 info->name = g_strdup(sn_tab[i].name); 197 info->vm_state_size = sn_tab[i].vm_state_size; 198 info->date_sec = sn_tab[i].date_sec; 199 info->date_nsec = sn_tab[i].date_nsec; 200 info->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; 201 info->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; 202 203 info_list = g_new0(SnapshotInfoList, 1); 204 info_list->value = info; 205 206 /* XXX: waiting for the qapi to support qemu-queue.h types */ 207 if (!cur_item) { 208 head = cur_item = info_list; 209 } else { 210 cur_item->next = info_list; 211 cur_item = info_list; 212 } 213 214 } 215 216 g_free(sn_tab); 217 *p_list = head; 218 return 0; 219 } 220 221 /** 222 * bdrv_query_image_info: 223 * @bs: block device to examine 224 * @p_info: location to store image information 225 * @errp: location to store error information 226 * 227 * Store "flat" image information in @p_info. 228 * 229 * "Flat" means it does *not* query backing image information, 230 * i.e. (*pinfo)->has_backing_image will be set to false and 231 * (*pinfo)->backing_image to NULL even when the image does in fact have 232 * a backing image. 233 * 234 * @p_info will be set only on success. On error, store error in @errp. 235 */ 236 void bdrv_query_image_info(BlockDriverState *bs, 237 ImageInfo **p_info, 238 Error **errp) 239 { 240 int64_t size; 241 const char *backing_filename; 242 BlockDriverInfo bdi; 243 int ret; 244 Error *err = NULL; 245 ImageInfo *info; 246 247 aio_context_acquire(bdrv_get_aio_context(bs)); 248 249 size = bdrv_getlength(bs); 250 if (size < 0) { 251 error_setg_errno(errp, -size, "Can't get image size '%s'", 252 bs->exact_filename); 253 goto out; 254 } 255 256 info = g_new0(ImageInfo, 1); 257 info->filename = g_strdup(bs->filename); 258 info->format = g_strdup(bdrv_get_format_name(bs)); 259 info->virtual_size = size; 260 info->actual_size = bdrv_get_allocated_file_size(bs); 261 info->has_actual_size = info->actual_size >= 0; 262 if (bdrv_is_encrypted(bs)) { 263 info->encrypted = true; 264 info->has_encrypted = true; 265 } 266 if (bdrv_get_info(bs, &bdi) >= 0) { 267 if (bdi.cluster_size != 0) { 268 info->cluster_size = bdi.cluster_size; 269 info->has_cluster_size = true; 270 } 271 info->dirty_flag = bdi.is_dirty; 272 info->has_dirty_flag = true; 273 } 274 info->format_specific = bdrv_get_specific_info(bs); 275 info->has_format_specific = info->format_specific != NULL; 276 277 backing_filename = bs->backing_file; 278 if (backing_filename[0] != '\0') { 279 char *backing_filename2 = g_malloc0(PATH_MAX); 280 info->backing_filename = g_strdup(backing_filename); 281 info->has_backing_filename = true; 282 bdrv_get_full_backing_filename(bs, backing_filename2, PATH_MAX, &err); 283 if (err) { 284 /* Can't reconstruct the full backing filename, so we must omit 285 * this field and apply a Best Effort to this query. */ 286 g_free(backing_filename2); 287 backing_filename2 = NULL; 288 error_free(err); 289 err = NULL; 290 } 291 292 /* Always report the full_backing_filename if present, even if it's the 293 * same as backing_filename. That they are same is useful info. */ 294 if (backing_filename2) { 295 info->full_backing_filename = g_strdup(backing_filename2); 296 info->has_full_backing_filename = true; 297 } 298 299 if (bs->backing_format[0]) { 300 info->backing_filename_format = g_strdup(bs->backing_format); 301 info->has_backing_filename_format = true; 302 } 303 g_free(backing_filename2); 304 } 305 306 ret = bdrv_query_snapshot_info_list(bs, &info->snapshots, &err); 307 switch (ret) { 308 case 0: 309 if (info->snapshots) { 310 info->has_snapshots = true; 311 } 312 break; 313 /* recoverable error */ 314 case -ENOMEDIUM: 315 case -ENOTSUP: 316 error_free(err); 317 break; 318 default: 319 error_propagate(errp, err); 320 qapi_free_ImageInfo(info); 321 goto out; 322 } 323 324 *p_info = info; 325 326 out: 327 aio_context_release(bdrv_get_aio_context(bs)); 328 } 329 330 /* @p_info will be set only on success. */ 331 static void bdrv_query_info(BlockBackend *blk, BlockInfo **p_info, 332 Error **errp) 333 { 334 BlockInfo *info = g_malloc0(sizeof(*info)); 335 BlockDriverState *bs = blk_bs(blk); 336 char *qdev; 337 338 /* Skip automatically inserted nodes that the user isn't aware of */ 339 while (bs && bs->drv && bs->implicit) { 340 bs = backing_bs(bs); 341 } 342 343 info->device = g_strdup(blk_name(blk)); 344 info->type = g_strdup("unknown"); 345 info->locked = blk_dev_is_medium_locked(blk); 346 info->removable = blk_dev_has_removable_media(blk); 347 348 qdev = blk_get_attached_dev_id(blk); 349 if (qdev && *qdev) { 350 info->has_qdev = true; 351 info->qdev = qdev; 352 } else { 353 g_free(qdev); 354 } 355 356 if (blk_dev_has_tray(blk)) { 357 info->has_tray_open = true; 358 info->tray_open = blk_dev_is_tray_open(blk); 359 } 360 361 if (blk_iostatus_is_enabled(blk)) { 362 info->has_io_status = true; 363 info->io_status = blk_iostatus(blk); 364 } 365 366 if (bs && !QLIST_EMPTY(&bs->dirty_bitmaps)) { 367 info->has_dirty_bitmaps = true; 368 info->dirty_bitmaps = bdrv_query_dirty_bitmaps(bs); 369 } 370 371 if (bs && bs->drv) { 372 info->has_inserted = true; 373 info->inserted = bdrv_block_device_info(blk, bs, errp); 374 if (info->inserted == NULL) { 375 goto err; 376 } 377 } 378 379 *p_info = info; 380 return; 381 382 err: 383 qapi_free_BlockInfo(info); 384 } 385 386 static void bdrv_query_blk_stats(BlockDeviceStats *ds, BlockBackend *blk) 387 { 388 BlockAcctStats *stats = blk_get_stats(blk); 389 BlockAcctTimedStats *ts = NULL; 390 391 ds->rd_bytes = stats->nr_bytes[BLOCK_ACCT_READ]; 392 ds->wr_bytes = stats->nr_bytes[BLOCK_ACCT_WRITE]; 393 ds->rd_operations = stats->nr_ops[BLOCK_ACCT_READ]; 394 ds->wr_operations = stats->nr_ops[BLOCK_ACCT_WRITE]; 395 396 ds->failed_rd_operations = stats->failed_ops[BLOCK_ACCT_READ]; 397 ds->failed_wr_operations = stats->failed_ops[BLOCK_ACCT_WRITE]; 398 ds->failed_flush_operations = stats->failed_ops[BLOCK_ACCT_FLUSH]; 399 400 ds->invalid_rd_operations = stats->invalid_ops[BLOCK_ACCT_READ]; 401 ds->invalid_wr_operations = stats->invalid_ops[BLOCK_ACCT_WRITE]; 402 ds->invalid_flush_operations = 403 stats->invalid_ops[BLOCK_ACCT_FLUSH]; 404 405 ds->rd_merged = stats->merged[BLOCK_ACCT_READ]; 406 ds->wr_merged = stats->merged[BLOCK_ACCT_WRITE]; 407 ds->flush_operations = stats->nr_ops[BLOCK_ACCT_FLUSH]; 408 ds->wr_total_time_ns = stats->total_time_ns[BLOCK_ACCT_WRITE]; 409 ds->rd_total_time_ns = stats->total_time_ns[BLOCK_ACCT_READ]; 410 ds->flush_total_time_ns = stats->total_time_ns[BLOCK_ACCT_FLUSH]; 411 412 ds->has_idle_time_ns = stats->last_access_time_ns > 0; 413 if (ds->has_idle_time_ns) { 414 ds->idle_time_ns = block_acct_idle_time_ns(stats); 415 } 416 417 ds->account_invalid = stats->account_invalid; 418 ds->account_failed = stats->account_failed; 419 420 while ((ts = block_acct_interval_next(stats, ts))) { 421 BlockDeviceTimedStatsList *timed_stats = 422 g_malloc0(sizeof(*timed_stats)); 423 BlockDeviceTimedStats *dev_stats = g_malloc0(sizeof(*dev_stats)); 424 timed_stats->next = ds->timed_stats; 425 timed_stats->value = dev_stats; 426 ds->timed_stats = timed_stats; 427 428 TimedAverage *rd = &ts->latency[BLOCK_ACCT_READ]; 429 TimedAverage *wr = &ts->latency[BLOCK_ACCT_WRITE]; 430 TimedAverage *fl = &ts->latency[BLOCK_ACCT_FLUSH]; 431 432 dev_stats->interval_length = ts->interval_length; 433 434 dev_stats->min_rd_latency_ns = timed_average_min(rd); 435 dev_stats->max_rd_latency_ns = timed_average_max(rd); 436 dev_stats->avg_rd_latency_ns = timed_average_avg(rd); 437 438 dev_stats->min_wr_latency_ns = timed_average_min(wr); 439 dev_stats->max_wr_latency_ns = timed_average_max(wr); 440 dev_stats->avg_wr_latency_ns = timed_average_avg(wr); 441 442 dev_stats->min_flush_latency_ns = timed_average_min(fl); 443 dev_stats->max_flush_latency_ns = timed_average_max(fl); 444 dev_stats->avg_flush_latency_ns = timed_average_avg(fl); 445 446 dev_stats->avg_rd_queue_depth = 447 block_acct_queue_depth(ts, BLOCK_ACCT_READ); 448 dev_stats->avg_wr_queue_depth = 449 block_acct_queue_depth(ts, BLOCK_ACCT_WRITE); 450 } 451 } 452 453 static BlockStats *bdrv_query_bds_stats(BlockDriverState *bs, 454 bool blk_level) 455 { 456 BlockStats *s = NULL; 457 458 s = g_malloc0(sizeof(*s)); 459 s->stats = g_malloc0(sizeof(*s->stats)); 460 461 if (!bs) { 462 return s; 463 } 464 465 /* Skip automatically inserted nodes that the user isn't aware of in 466 * a BlockBackend-level command. Stay at the exact node for a node-level 467 * command. */ 468 while (blk_level && bs->drv && bs->implicit) { 469 bs = backing_bs(bs); 470 assert(bs); 471 } 472 473 if (bdrv_get_node_name(bs)[0]) { 474 s->has_node_name = true; 475 s->node_name = g_strdup(bdrv_get_node_name(bs)); 476 } 477 478 s->stats->wr_highest_offset = stat64_get(&bs->wr_highest_offset); 479 480 if (bs->file) { 481 s->has_parent = true; 482 s->parent = bdrv_query_bds_stats(bs->file->bs, blk_level); 483 } 484 485 if (blk_level && bs->backing) { 486 s->has_backing = true; 487 s->backing = bdrv_query_bds_stats(bs->backing->bs, blk_level); 488 } 489 490 return s; 491 } 492 493 BlockInfoList *qmp_query_block(Error **errp) 494 { 495 BlockInfoList *head = NULL, **p_next = &head; 496 BlockBackend *blk; 497 Error *local_err = NULL; 498 499 for (blk = blk_all_next(NULL); blk; blk = blk_all_next(blk)) { 500 BlockInfoList *info; 501 502 if (!*blk_name(blk) && !blk_get_attached_dev(blk)) { 503 continue; 504 } 505 506 info = g_malloc0(sizeof(*info)); 507 bdrv_query_info(blk, &info->value, &local_err); 508 if (local_err) { 509 error_propagate(errp, local_err); 510 g_free(info); 511 qapi_free_BlockInfoList(head); 512 return NULL; 513 } 514 515 *p_next = info; 516 p_next = &info->next; 517 } 518 519 return head; 520 } 521 522 BlockStatsList *qmp_query_blockstats(bool has_query_nodes, 523 bool query_nodes, 524 Error **errp) 525 { 526 BlockStatsList *head = NULL, **p_next = &head; 527 BlockBackend *blk; 528 BlockDriverState *bs; 529 530 /* Just to be safe if query_nodes is not always initialized */ 531 if (has_query_nodes && query_nodes) { 532 for (bs = bdrv_next_node(NULL); bs; bs = bdrv_next_node(bs)) { 533 BlockStatsList *info = g_malloc0(sizeof(*info)); 534 AioContext *ctx = bdrv_get_aio_context(bs); 535 536 aio_context_acquire(ctx); 537 info->value = bdrv_query_bds_stats(bs, false); 538 aio_context_release(ctx); 539 540 *p_next = info; 541 p_next = &info->next; 542 } 543 } else { 544 for (blk = blk_next(NULL); blk; blk = blk_next(blk)) { 545 BlockStatsList *info = g_malloc0(sizeof(*info)); 546 AioContext *ctx = blk_get_aio_context(blk); 547 BlockStats *s; 548 549 aio_context_acquire(ctx); 550 s = bdrv_query_bds_stats(blk_bs(blk), true); 551 s->has_device = true; 552 s->device = g_strdup(blk_name(blk)); 553 bdrv_query_blk_stats(s->stats, blk); 554 aio_context_release(ctx); 555 556 info->value = s; 557 *p_next = info; 558 p_next = &info->next; 559 } 560 } 561 562 return head; 563 } 564 565 #define NB_SUFFIXES 4 566 567 static char *get_human_readable_size(char *buf, int buf_size, int64_t size) 568 { 569 static const char suffixes[NB_SUFFIXES] = {'K', 'M', 'G', 'T'}; 570 int64_t base; 571 int i; 572 573 if (size <= 999) { 574 snprintf(buf, buf_size, "%" PRId64, size); 575 } else { 576 base = 1024; 577 for (i = 0; i < NB_SUFFIXES; i++) { 578 if (size < (10 * base)) { 579 snprintf(buf, buf_size, "%0.1f%c", 580 (double)size / base, 581 suffixes[i]); 582 break; 583 } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { 584 snprintf(buf, buf_size, "%" PRId64 "%c", 585 ((size + (base >> 1)) / base), 586 suffixes[i]); 587 break; 588 } 589 base = base * 1024; 590 } 591 } 592 return buf; 593 } 594 595 void bdrv_snapshot_dump(fprintf_function func_fprintf, void *f, 596 QEMUSnapshotInfo *sn) 597 { 598 char buf1[128], date_buf[128], clock_buf[128]; 599 struct tm tm; 600 time_t ti; 601 int64_t secs; 602 603 if (!sn) { 604 func_fprintf(f, 605 "%-10s%-20s%7s%20s%15s", 606 "ID", "TAG", "VM SIZE", "DATE", "VM CLOCK"); 607 } else { 608 ti = sn->date_sec; 609 localtime_r(&ti, &tm); 610 strftime(date_buf, sizeof(date_buf), 611 "%Y-%m-%d %H:%M:%S", &tm); 612 secs = sn->vm_clock_nsec / 1000000000; 613 snprintf(clock_buf, sizeof(clock_buf), 614 "%02d:%02d:%02d.%03d", 615 (int)(secs / 3600), 616 (int)((secs / 60) % 60), 617 (int)(secs % 60), 618 (int)((sn->vm_clock_nsec / 1000000) % 1000)); 619 func_fprintf(f, 620 "%-10s%-20s%7s%20s%15s", 621 sn->id_str, sn->name, 622 get_human_readable_size(buf1, sizeof(buf1), 623 sn->vm_state_size), 624 date_buf, 625 clock_buf); 626 } 627 } 628 629 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 630 QDict *dict); 631 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 632 QList *list); 633 634 static void dump_qobject(fprintf_function func_fprintf, void *f, 635 int comp_indent, QObject *obj) 636 { 637 switch (qobject_type(obj)) { 638 case QTYPE_QNUM: { 639 QNum *value = qobject_to_qnum(obj); 640 char *tmp = qnum_to_string(value); 641 func_fprintf(f, "%s", tmp); 642 g_free(tmp); 643 break; 644 } 645 case QTYPE_QSTRING: { 646 QString *value = qobject_to_qstring(obj); 647 func_fprintf(f, "%s", qstring_get_str(value)); 648 break; 649 } 650 case QTYPE_QDICT: { 651 QDict *value = qobject_to_qdict(obj); 652 dump_qdict(func_fprintf, f, comp_indent, value); 653 break; 654 } 655 case QTYPE_QLIST: { 656 QList *value = qobject_to_qlist(obj); 657 dump_qlist(func_fprintf, f, comp_indent, value); 658 break; 659 } 660 case QTYPE_QBOOL: { 661 QBool *value = qobject_to_qbool(obj); 662 func_fprintf(f, "%s", qbool_get_bool(value) ? "true" : "false"); 663 break; 664 } 665 default: 666 abort(); 667 } 668 } 669 670 static void dump_qlist(fprintf_function func_fprintf, void *f, int indentation, 671 QList *list) 672 { 673 const QListEntry *entry; 674 int i = 0; 675 676 for (entry = qlist_first(list); entry; entry = qlist_next(entry), i++) { 677 QType type = qobject_type(entry->value); 678 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 679 func_fprintf(f, "%*s[%i]:%c", indentation * 4, "", i, 680 composite ? '\n' : ' '); 681 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 682 if (!composite) { 683 func_fprintf(f, "\n"); 684 } 685 } 686 } 687 688 static void dump_qdict(fprintf_function func_fprintf, void *f, int indentation, 689 QDict *dict) 690 { 691 const QDictEntry *entry; 692 693 for (entry = qdict_first(dict); entry; entry = qdict_next(dict, entry)) { 694 QType type = qobject_type(entry->value); 695 bool composite = (type == QTYPE_QDICT || type == QTYPE_QLIST); 696 char *key = g_malloc(strlen(entry->key) + 1); 697 int i; 698 699 /* replace dashes with spaces in key (variable) names */ 700 for (i = 0; entry->key[i]; i++) { 701 key[i] = entry->key[i] == '-' ? ' ' : entry->key[i]; 702 } 703 key[i] = 0; 704 func_fprintf(f, "%*s%s:%c", indentation * 4, "", key, 705 composite ? '\n' : ' '); 706 dump_qobject(func_fprintf, f, indentation + 1, entry->value); 707 if (!composite) { 708 func_fprintf(f, "\n"); 709 } 710 g_free(key); 711 } 712 } 713 714 void bdrv_image_info_specific_dump(fprintf_function func_fprintf, void *f, 715 ImageInfoSpecific *info_spec) 716 { 717 QObject *obj, *data; 718 Visitor *v = qobject_output_visitor_new(&obj); 719 720 visit_type_ImageInfoSpecific(v, NULL, &info_spec, &error_abort); 721 visit_complete(v, &obj); 722 data = qdict_get(qobject_to_qdict(obj), "data"); 723 dump_qobject(func_fprintf, f, 1, data); 724 qobject_decref(obj); 725 visit_free(v); 726 } 727 728 void bdrv_image_info_dump(fprintf_function func_fprintf, void *f, 729 ImageInfo *info) 730 { 731 char size_buf[128], dsize_buf[128]; 732 if (!info->has_actual_size) { 733 snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); 734 } else { 735 get_human_readable_size(dsize_buf, sizeof(dsize_buf), 736 info->actual_size); 737 } 738 get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); 739 func_fprintf(f, 740 "image: %s\n" 741 "file format: %s\n" 742 "virtual size: %s (%" PRId64 " bytes)\n" 743 "disk size: %s\n", 744 info->filename, info->format, size_buf, 745 info->virtual_size, 746 dsize_buf); 747 748 if (info->has_encrypted && info->encrypted) { 749 func_fprintf(f, "encrypted: yes\n"); 750 } 751 752 if (info->has_cluster_size) { 753 func_fprintf(f, "cluster_size: %" PRId64 "\n", 754 info->cluster_size); 755 } 756 757 if (info->has_dirty_flag && info->dirty_flag) { 758 func_fprintf(f, "cleanly shut down: no\n"); 759 } 760 761 if (info->has_backing_filename) { 762 func_fprintf(f, "backing file: %s", info->backing_filename); 763 if (!info->has_full_backing_filename) { 764 func_fprintf(f, " (cannot determine actual path)"); 765 } else if (strcmp(info->backing_filename, 766 info->full_backing_filename) != 0) { 767 func_fprintf(f, " (actual path: %s)", info->full_backing_filename); 768 } 769 func_fprintf(f, "\n"); 770 if (info->has_backing_filename_format) { 771 func_fprintf(f, "backing file format: %s\n", 772 info->backing_filename_format); 773 } 774 } 775 776 if (info->has_snapshots) { 777 SnapshotInfoList *elem; 778 779 func_fprintf(f, "Snapshot list:\n"); 780 bdrv_snapshot_dump(func_fprintf, f, NULL); 781 func_fprintf(f, "\n"); 782 783 /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but 784 * we convert to the block layer's native QEMUSnapshotInfo for now. 785 */ 786 for (elem = info->snapshots; elem; elem = elem->next) { 787 QEMUSnapshotInfo sn = { 788 .vm_state_size = elem->value->vm_state_size, 789 .date_sec = elem->value->date_sec, 790 .date_nsec = elem->value->date_nsec, 791 .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + 792 elem->value->vm_clock_nsec, 793 }; 794 795 pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); 796 pstrcpy(sn.name, sizeof(sn.name), elem->value->name); 797 bdrv_snapshot_dump(func_fprintf, f, &sn); 798 func_fprintf(f, "\n"); 799 } 800 } 801 802 if (info->has_format_specific) { 803 func_fprintf(f, "Format specific information:\n"); 804 bdrv_image_info_specific_dump(func_fprintf, f, info->format_specific); 805 } 806 } 807