static void dump_superblock(struct btrfs_super_block *sb, int full) { int i; char *s, buf[BTRFS_UUID_UNPARSED_SIZE]; u8 *p; printf("csum\t\t\t0x"); for (i = 0, p = sb->csum; i < btrfs_super_csum_size(sb); i++) printf("%02x", p[i]); if (check_csum_sblock(sb, btrfs_super_csum_size(sb))) printf(" [match]"); else printf(" [DON'T MATCH]"); putchar('\n'); printf("bytenr\t\t\t%llu\n", (unsigned long long)btrfs_super_bytenr(sb)); printf("flags\t\t\t0x%llx\n", (unsigned long long)btrfs_super_flags(sb)); print_readable_super_flag(btrfs_super_flags(sb)); printf("magic\t\t\t"); s = (char *) &sb->magic; for (i = 0; i < 8; i++) putchar(isprint(s[i]) ? s[i] : '.'); if (btrfs_super_magic(sb) == BTRFS_MAGIC) printf(" [match]\n"); else printf(" [DON'T MATCH]\n"); uuid_unparse(sb->fsid, buf); printf("fsid\t\t\t%s\n", buf); printf("label\t\t\t"); s = sb->label; for (i = 0; i < BTRFS_LABEL_SIZE && s[i]; i++) putchar(isprint(s[i]) ? s[i] : '.'); putchar('\n'); printf("generation\t\t%llu\n", (unsigned long long)btrfs_super_generation(sb)); printf("root\t\t\t%llu\n", (unsigned long long)btrfs_super_root(sb)); printf("sys_array_size\t\t%llu\n", (unsigned long long)btrfs_super_sys_array_size(sb)); printf("chunk_root_generation\t%llu\n", (unsigned long long)btrfs_super_chunk_root_generation(sb)); printf("root_level\t\t%llu\n", (unsigned long long)btrfs_super_root_level(sb)); printf("chunk_root\t\t%llu\n", (unsigned long long)btrfs_super_chunk_root(sb)); printf("chunk_root_level\t%llu\n", (unsigned long long)btrfs_super_chunk_root_level(sb)); printf("log_root\t\t%llu\n", (unsigned long long)btrfs_super_log_root(sb)); printf("log_root_transid\t%llu\n", (unsigned long long)btrfs_super_log_root_transid(sb)); printf("log_root_level\t\t%llu\n", (unsigned long long)btrfs_super_log_root_level(sb)); printf("total_bytes\t\t%llu\n", (unsigned long long)btrfs_super_total_bytes(sb)); printf("bytes_used\t\t%llu\n", (unsigned long long)btrfs_super_bytes_used(sb)); printf("sectorsize\t\t%llu\n", (unsigned long long)btrfs_super_sectorsize(sb)); printf("nodesize\t\t%llu\n", (unsigned long long)btrfs_super_nodesize(sb)); printf("leafsize\t\t%llu\n", (unsigned long long)btrfs_super_leafsize(sb)); printf("stripesize\t\t%llu\n", (unsigned long long)btrfs_super_stripesize(sb)); printf("root_dir\t\t%llu\n", (unsigned long long)btrfs_super_root_dir(sb)); printf("num_devices\t\t%llu\n", (unsigned long long)btrfs_super_num_devices(sb)); printf("compat_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_compat_flags(sb)); printf("compat_ro_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_compat_ro_flags(sb)); printf("incompat_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_incompat_flags(sb)); print_readable_incompat_flag(btrfs_super_incompat_flags(sb)); printf("csum_type\t\t%llu\n", (unsigned long long)btrfs_super_csum_type(sb)); printf("csum_size\t\t%llu\n", (unsigned long long)btrfs_super_csum_size(sb)); printf("cache_generation\t%llu\n", (unsigned long long)btrfs_super_cache_generation(sb)); printf("uuid_tree_generation\t%llu\n", (unsigned long long)btrfs_super_uuid_tree_generation(sb)); uuid_unparse(sb->dev_item.uuid, buf); printf("dev_item.uuid\t\t%s\n", buf); uuid_unparse(sb->dev_item.fsid, buf); printf("dev_item.fsid\t\t%s %s\n", buf, !memcmp(sb->dev_item.fsid, sb->fsid, BTRFS_FSID_SIZE) ? "[match]" : "[DON'T MATCH]"); printf("dev_item.type\t\t%llu\n", (unsigned long long) btrfs_stack_device_type(&sb->dev_item)); printf("dev_item.total_bytes\t%llu\n", (unsigned long long) btrfs_stack_device_total_bytes(&sb->dev_item)); printf("dev_item.bytes_used\t%llu\n", (unsigned long long) btrfs_stack_device_bytes_used(&sb->dev_item)); printf("dev_item.io_align\t%u\n", (unsigned int) btrfs_stack_device_io_align(&sb->dev_item)); printf("dev_item.io_width\t%u\n", (unsigned int) btrfs_stack_device_io_width(&sb->dev_item)); printf("dev_item.sector_size\t%u\n", (unsigned int) btrfs_stack_device_sector_size(&sb->dev_item)); printf("dev_item.devid\t\t%llu\n", btrfs_stack_device_id(&sb->dev_item)); printf("dev_item.dev_group\t%u\n", (unsigned int) btrfs_stack_device_group(&sb->dev_item)); printf("dev_item.seek_speed\t%u\n", (unsigned int) btrfs_stack_device_seek_speed(&sb->dev_item)); printf("dev_item.bandwidth\t%u\n", (unsigned int) btrfs_stack_device_bandwidth(&sb->dev_item)); printf("dev_item.generation\t%llu\n", (unsigned long long) btrfs_stack_device_generation(&sb->dev_item)); if (full) { printf("sys_chunk_array[%d]:\n", BTRFS_SYSTEM_CHUNK_ARRAY_SIZE); print_sys_chunk_array(sb); printf("backup_roots[%d]:\n", BTRFS_NUM_BACKUP_ROOTS); print_backup_roots(sb); } }
static void print_sys_chunk_array(struct btrfs_super_block *sb) { struct extent_buffer *buf; struct btrfs_disk_key *disk_key; struct btrfs_chunk *chunk; u8 *array_ptr; unsigned long sb_array_offset; u32 num_stripes; u32 array_size; u32 len = 0; u32 cur_offset; struct btrfs_key key; int item; buf = malloc(sizeof(*buf) + sizeof(*sb)); if (!buf) { error("not enough memory"); return; } write_extent_buffer(buf, sb, 0, sizeof(*sb)); buf->len = sizeof(*sb); array_size = btrfs_super_sys_array_size(sb); array_ptr = sb->sys_chunk_array; sb_array_offset = offsetof(struct btrfs_super_block, sys_chunk_array); if (array_size > BTRFS_SYSTEM_CHUNK_ARRAY_SIZE) { error("sys_array_size %u shouldn't exceed %u bytes", array_size, BTRFS_SYSTEM_CHUNK_ARRAY_SIZE); goto out; } cur_offset = 0; item = 0; while (cur_offset < array_size) { disk_key = (struct btrfs_disk_key *)array_ptr; len = sizeof(*disk_key); if (cur_offset + len > array_size) goto out_short_read; btrfs_disk_key_to_cpu(&key, disk_key); array_ptr += len; sb_array_offset += len; cur_offset += len; printf("\titem %d ", item); btrfs_print_key(disk_key); putchar('\n'); if (key.type == BTRFS_CHUNK_ITEM_KEY) { chunk = (struct btrfs_chunk *)sb_array_offset; /* * At least one btrfs_chunk with one stripe must be * present, exact stripe count check comes afterwards */ len = btrfs_chunk_item_size(1); if (cur_offset + len > array_size) goto out_short_read; num_stripes = btrfs_chunk_num_stripes(buf, chunk); if (!num_stripes) { error( "invalid number of stripes %u in sys_array at offset %u", num_stripes, cur_offset); break; } len = btrfs_chunk_item_size(num_stripes); if (cur_offset + len > array_size) goto out_short_read; print_chunk_item(buf, chunk); } else { error("unexpected item type %u in sys_array at offset %u", (u32)key.type, cur_offset); break; } array_ptr += len; sb_array_offset += len; cur_offset += len; item++; } out: free(buf); return; out_short_read: error("sys_array too short to read %u bytes at offset %u", len, cur_offset); free(buf); }
static void print_sys_chunk_array(struct btrfs_super_block *sb) { struct extent_buffer *buf; struct btrfs_disk_key *disk_key; struct btrfs_chunk *chunk; u8 *array_ptr; unsigned long sb_array_offset; u32 num_stripes; u32 array_size; u32 len = 0; u32 cur_offset; struct btrfs_key key; int item; buf = malloc(sizeof(*buf) + sizeof(*sb)); if (!buf) { fprintf(stderr, "%s\n", strerror(ENOMEM)); exit(1); } write_extent_buffer(buf, sb, 0, sizeof(*sb)); array_size = btrfs_super_sys_array_size(sb); array_ptr = sb->sys_chunk_array; sb_array_offset = offsetof(struct btrfs_super_block, sys_chunk_array); cur_offset = 0; item = 0; while (cur_offset < array_size) { disk_key = (struct btrfs_disk_key *)array_ptr; len = sizeof(*disk_key); if (cur_offset + len > array_size) goto out_short_read; btrfs_disk_key_to_cpu(&key, disk_key); array_ptr += len; sb_array_offset += len; cur_offset += len; printf("\titem %d ", item); btrfs_print_key(disk_key); putchar('\n'); if (key.type == BTRFS_CHUNK_ITEM_KEY) { chunk = (struct btrfs_chunk *)sb_array_offset; /* * At least one btrfs_chunk with one stripe must be * present, exact stripe count check comes afterwards */ len = btrfs_chunk_item_size(1); if (cur_offset + len > array_size) goto out_short_read; print_chunk(buf, chunk); num_stripes = btrfs_chunk_num_stripes(buf, chunk); if (!num_stripes) { printk( "ERROR: invalid number of stripes %u in sys_array at offset %u\n", num_stripes, cur_offset); break; } len = btrfs_chunk_item_size(num_stripes); if (cur_offset + len > array_size) goto out_short_read; } else { printk( "ERROR: unexpected item type %u in sys_array at offset %u\n", (u32)key.type, cur_offset); break; } array_ptr += len; sb_array_offset += len; cur_offset += len; item++; } free(buf); return; out_short_read: printk("ERROR: sys_array too short to read %u bytes at offset %u\n", len, cur_offset); free(buf); }
static void dump_superblock(struct btrfs_super_block *sb, int full) { int i; char *s, buf[BTRFS_UUID_UNPARSED_SIZE]; u8 *p; u32 csum_size; u16 csum_type; bool metadata_uuid_present = (btrfs_super_incompat_flags(sb) & BTRFS_FEATURE_INCOMPAT_METADATA_UUID); int cmp_res = 0; csum_type = btrfs_super_csum_type(sb); csum_size = BTRFS_CSUM_SIZE; printf("csum_type\t\t%hu (", csum_type); if (csum_type >= ARRAY_SIZE(btrfs_csum_sizes)) { printf("INVALID"); } else { if (csum_type == BTRFS_CSUM_TYPE_CRC32) { printf("crc32c"); csum_size = btrfs_csum_sizes[csum_type]; } else { printf("unknown"); } } printf(")\n"); printf("csum_size\t\t%llu\n", (unsigned long long)csum_size); printf("csum\t\t\t0x"); for (i = 0, p = sb->csum; i < csum_size; i++) printf("%02x", p[i]); if (csum_type != BTRFS_CSUM_TYPE_CRC32 || csum_size != btrfs_csum_sizes[BTRFS_CSUM_TYPE_CRC32]) printf(" [UNKNOWN CSUM TYPE OR SIZE]"); else if (check_csum_sblock(sb, csum_size)) printf(" [match]"); else printf(" [DON'T MATCH]"); putchar('\n'); printf("bytenr\t\t\t%llu\n", (unsigned long long)btrfs_super_bytenr(sb)); printf("flags\t\t\t0x%llx\n", (unsigned long long)btrfs_super_flags(sb)); print_readable_super_flag(btrfs_super_flags(sb)); printf("magic\t\t\t"); s = (char *) &sb->magic; for (i = 0; i < 8; i++) putchar(isprint(s[i]) ? s[i] : '.'); if (btrfs_super_magic(sb) == BTRFS_MAGIC) printf(" [match]\n"); else printf(" [DON'T MATCH]\n"); uuid_unparse(sb->fsid, buf); printf("fsid\t\t\t%s\n", buf); if (metadata_uuid_present) { uuid_unparse(sb->metadata_uuid, buf); printf("metadata_uuid\t\t%s\n", buf); } else { printf("metadata_uuid\t\t%s\n", buf); } printf("label\t\t\t"); s = sb->label; for (i = 0; i < BTRFS_LABEL_SIZE && s[i]; i++) putchar(isprint(s[i]) ? s[i] : '.'); putchar('\n'); printf("generation\t\t%llu\n", (unsigned long long)btrfs_super_generation(sb)); printf("root\t\t\t%llu\n", (unsigned long long)btrfs_super_root(sb)); printf("sys_array_size\t\t%llu\n", (unsigned long long)btrfs_super_sys_array_size(sb)); printf("chunk_root_generation\t%llu\n", (unsigned long long)btrfs_super_chunk_root_generation(sb)); printf("root_level\t\t%llu\n", (unsigned long long)btrfs_super_root_level(sb)); printf("chunk_root\t\t%llu\n", (unsigned long long)btrfs_super_chunk_root(sb)); printf("chunk_root_level\t%llu\n", (unsigned long long)btrfs_super_chunk_root_level(sb)); printf("log_root\t\t%llu\n", (unsigned long long)btrfs_super_log_root(sb)); printf("log_root_transid\t%llu\n", (unsigned long long)btrfs_super_log_root_transid(sb)); printf("log_root_level\t\t%llu\n", (unsigned long long)btrfs_super_log_root_level(sb)); printf("total_bytes\t\t%llu\n", (unsigned long long)btrfs_super_total_bytes(sb)); printf("bytes_used\t\t%llu\n", (unsigned long long)btrfs_super_bytes_used(sb)); printf("sectorsize\t\t%llu\n", (unsigned long long)btrfs_super_sectorsize(sb)); printf("nodesize\t\t%llu\n", (unsigned long long)btrfs_super_nodesize(sb)); printf("leafsize (deprecated)\t%u\n", le32_to_cpu(sb->__unused_leafsize)); printf("stripesize\t\t%llu\n", (unsigned long long)btrfs_super_stripesize(sb)); printf("root_dir\t\t%llu\n", (unsigned long long)btrfs_super_root_dir(sb)); printf("num_devices\t\t%llu\n", (unsigned long long)btrfs_super_num_devices(sb)); printf("compat_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_compat_flags(sb)); printf("compat_ro_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_compat_ro_flags(sb)); print_readable_compat_ro_flag(btrfs_super_compat_ro_flags(sb)); printf("incompat_flags\t\t0x%llx\n", (unsigned long long)btrfs_super_incompat_flags(sb)); print_readable_incompat_flag(btrfs_super_incompat_flags(sb)); printf("cache_generation\t%llu\n", (unsigned long long)btrfs_super_cache_generation(sb)); printf("uuid_tree_generation\t%llu\n", (unsigned long long)btrfs_super_uuid_tree_generation(sb)); uuid_unparse(sb->dev_item.uuid, buf); printf("dev_item.uuid\t\t%s\n", buf); uuid_unparse(sb->dev_item.fsid, buf); if (metadata_uuid_present) { cmp_res = !memcmp(sb->dev_item.fsid, sb->metadata_uuid, BTRFS_FSID_SIZE); } else { cmp_res = !memcmp(sb->dev_item.fsid, sb->fsid, BTRFS_FSID_SIZE); } printf("dev_item.fsid\t\t%s %s\n", buf, cmp_res ? "[match]" : "[DON'T MATCH]"); printf("dev_item.type\t\t%llu\n", (unsigned long long) btrfs_stack_device_type(&sb->dev_item)); printf("dev_item.total_bytes\t%llu\n", (unsigned long long) btrfs_stack_device_total_bytes(&sb->dev_item)); printf("dev_item.bytes_used\t%llu\n", (unsigned long long) btrfs_stack_device_bytes_used(&sb->dev_item)); printf("dev_item.io_align\t%u\n", (unsigned int) btrfs_stack_device_io_align(&sb->dev_item)); printf("dev_item.io_width\t%u\n", (unsigned int) btrfs_stack_device_io_width(&sb->dev_item)); printf("dev_item.sector_size\t%u\n", (unsigned int) btrfs_stack_device_sector_size(&sb->dev_item)); printf("dev_item.devid\t\t%llu\n", btrfs_stack_device_id(&sb->dev_item)); printf("dev_item.dev_group\t%u\n", (unsigned int) btrfs_stack_device_group(&sb->dev_item)); printf("dev_item.seek_speed\t%u\n", (unsigned int) btrfs_stack_device_seek_speed(&sb->dev_item)); printf("dev_item.bandwidth\t%u\n", (unsigned int) btrfs_stack_device_bandwidth(&sb->dev_item)); printf("dev_item.generation\t%llu\n", (unsigned long long) btrfs_stack_device_generation(&sb->dev_item)); if (full) { printf("sys_chunk_array[%d]:\n", BTRFS_SYSTEM_CHUNK_ARRAY_SIZE); print_sys_chunk_array(sb); printf("backup_roots[%d]:\n", BTRFS_NUM_BACKUP_ROOTS); print_backup_roots(sb); } }