+/* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
+static void bg_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ if (flags & BTRFS_BLOCK_GROUP_DATA) {
+ empty = 0;
+ strcpy(ret, "DATA");
+ }
+ if (flags & BTRFS_BLOCK_GROUP_METADATA) {
+ if (!empty)
+ strcat(ret, "|");
+ strcat(ret, "METADATA");
+ }
+ if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
+ if (!empty)
+ strcat(ret, "|");
+ strcat(ret, "SYSTEM");
+ }
+ switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
+ case BTRFS_BLOCK_GROUP_RAID0:
+ strcat(ret, "|RAID0");
+ break;
+ case BTRFS_BLOCK_GROUP_RAID1:
+ strcat(ret, "|RAID1");
+ break;
+ case BTRFS_BLOCK_GROUP_DUP:
+ strcat(ret, "|DUP");
+ break;
+ case BTRFS_BLOCK_GROUP_RAID10:
+ strcat(ret, "|RAID10");
+ break;
+ case BTRFS_BLOCK_GROUP_RAID5:
+ strcat(ret, "|RAID5");
+ break;
+ case BTRFS_BLOCK_GROUP_RAID6:
+ strcat(ret, "|RAID6");
+ break;
+ default:
+ break;
+ }
+}
+
+/* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
+static void qgroup_flags_to_str(u64 flags, char *ret)
+{
+ if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
+ strcpy(ret, "ON");
+ else
+ strcpy(ret, "OFF");
+
+ if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
+ strcat(ret, "|SCANNING");
+ if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
+ strcat(ret, "|INCONSISTENT");
+}
+
+void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
+{
+ int num_stripes = btrfs_chunk_num_stripes(eb, chunk);
+ int i;
+ char chunk_flags_str[32] = {0};
+
+ bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
+ printf("\t\tchunk length %llu owner %llu stripe_len %llu\n",
+ (unsigned long long)btrfs_chunk_length(eb, chunk),
+ (unsigned long long)btrfs_chunk_owner(eb, chunk),
+ (unsigned long long)btrfs_chunk_stripe_len(eb, chunk));
+ printf("\t\ttype %s num_stripes %d\n",
+ chunk_flags_str, num_stripes);
+ for (i = 0 ; i < num_stripes ; i++) {
+ unsigned char dev_uuid[BTRFS_UUID_SIZE];
+ char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
+
+ read_extent_buffer(eb, dev_uuid,
+ (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(dev_uuid, str_dev_uuid);
+ printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
+ (unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
+ (unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
+ printf("\t\t\tdev uuid: %s\n", str_dev_uuid);
+ }
+}
+
+static void print_dev_item(struct extent_buffer *eb,
+ struct btrfs_dev_item *dev_item)
+{
+ char disk_uuid_c[BTRFS_UUID_UNPARSED_SIZE];
+ u8 disk_uuid[BTRFS_UUID_SIZE];
+
+ read_extent_buffer(eb, disk_uuid,
+ (unsigned long)btrfs_device_uuid(dev_item),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(disk_uuid, disk_uuid_c);
+ printf("\t\tdev item devid %llu "
+ "total_bytes %llu bytes used %Lu\n"
+ "\t\tdev uuid %s\n",
+ (unsigned long long)btrfs_device_id(eb, dev_item),
+ (unsigned long long)btrfs_device_total_bytes(eb, dev_item),
+ (unsigned long long)btrfs_device_bytes_used(eb, dev_item),
+ disk_uuid_c);
+}
+
+static void print_uuids(struct extent_buffer *eb)
+{
+ char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
+ char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
+ u8 disk_uuid[BTRFS_UUID_SIZE];
+
+ read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
+ BTRFS_FSID_SIZE);
+
+ fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
+ uuid_unparse(disk_uuid, fs_uuid);
+
+ read_extent_buffer(eb, disk_uuid,
+ btrfs_header_chunk_tree_uuid(eb),
+ BTRFS_UUID_SIZE);
+
+ chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
+ uuid_unparse(disk_uuid, chunk_uuid);
+ printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
+}
+
+static void compress_type_to_str(u8 compress_type, char *ret)
+{
+ switch (compress_type) {
+ case BTRFS_COMPRESS_NONE:
+ strcpy(ret, "none");
+ break;
+ case BTRFS_COMPRESS_ZLIB:
+ strcpy(ret, "zlib");
+ break;
+ case BTRFS_COMPRESS_LZO:
+ strcpy(ret, "lzo");
+ break;
+ default:
+ sprintf(ret, "UNKNOWN.%d", compress_type);
+ }
+}
+
+static void print_file_extent_item(struct extent_buffer *eb,
+ struct btrfs_item *item,
+ int slot,
+ struct btrfs_file_extent_item *fi)
+{
+ int extent_type = btrfs_file_extent_type(eb, fi);
+ char compress_str[16];
+
+ compress_type_to_str(btrfs_file_extent_compression(eb, fi),
+ compress_str);
+
+ if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
+ printf("\t\tinline extent data size %u "
+ "ram %u compress(%s)\n",
+ btrfs_file_extent_inline_item_len(eb, item),
+ btrfs_file_extent_inline_len(eb, slot, fi),
+ compress_str);
+ return;
+ }
+ if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
+ printf("\t\tprealloc data disk byte %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
+ (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
+ printf("\t\tprealloc data offset %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_offset(eb, fi),
+ (unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
+ return;
+ }
+ printf("\t\textent data disk byte %llu nr %llu\n",
+ (unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
+ (unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
+ printf("\t\textent data offset %llu nr %llu ram %llu\n",
+ (unsigned long long)btrfs_file_extent_offset(eb, fi),
+ (unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
+ (unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
+ printf("\t\textent compression(%s)\n", compress_str);
+}
+
+/* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
+static void extent_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ if (flags & BTRFS_EXTENT_FLAG_DATA) {
+ empty = 0;
+ strcpy(ret, "DATA");
+ }
+ if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
+ if (!empty) {
+ empty = 0;
+ strcat(ret, "|");
+ }
+ strcat(ret, "TREE_BLOCK");
+ }
+ if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
+ strcat(ret, "|");
+ strcat(ret, "FULL_BACKREF");
+ }
+}
+
+void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
+{
+ struct btrfs_extent_item *ei;
+ struct btrfs_extent_inline_ref *iref;
+ struct btrfs_extent_data_ref *dref;
+ struct btrfs_shared_data_ref *sref;
+ struct btrfs_disk_key key;
+ unsigned long end;
+ unsigned long ptr;
+ int type;
+ u32 item_size = btrfs_item_size_nr(eb, slot);
+ u64 flags;
+ u64 offset;
+ char flags_str[32] = {0};
+
+ if (item_size < sizeof(*ei)) {
+#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
+ struct btrfs_extent_item_v0 *ei0;
+ BUG_ON(item_size != sizeof(*ei0));
+ ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
+ printf("\t\textent refs %u\n",
+ btrfs_extent_refs_v0(eb, ei0));
+ return;
+#else
+ BUG();
+#endif
+ }
+
+ ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
+ flags = btrfs_extent_flags(eb, ei);
+ extent_flags_to_str(flags, flags_str);
+
+ printf("\t\textent refs %llu gen %llu flags %s\n",
+ (unsigned long long)btrfs_extent_refs(eb, ei),
+ (unsigned long long)btrfs_extent_generation(eb, ei),
+ flags_str);
+
+ if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
+ struct btrfs_tree_block_info *info;
+ info = (struct btrfs_tree_block_info *)(ei + 1);
+ btrfs_tree_block_key(eb, info, &key);
+ printf("\t\ttree block ");
+ btrfs_print_key(&key);
+ printf(" level %d\n", btrfs_tree_block_level(eb, info));
+ iref = (struct btrfs_extent_inline_ref *)(info + 1);
+ } else if (metadata) {
+ struct btrfs_key tmp;
+
+ btrfs_item_key_to_cpu(eb, &tmp, slot);
+ printf("\t\ttree block skinny level %d\n", (int)tmp.offset);
+ iref = (struct btrfs_extent_inline_ref *)(ei + 1);
+ } else{
+ iref = (struct btrfs_extent_inline_ref *)(ei + 1);
+ }
+
+ ptr = (unsigned long)iref;
+ end = (unsigned long)ei + item_size;
+ while (ptr < end) {
+ iref = (struct btrfs_extent_inline_ref *)ptr;
+ type = btrfs_extent_inline_ref_type(eb, iref);
+ offset = btrfs_extent_inline_ref_offset(eb, iref);
+ switch (type) {
+ case BTRFS_TREE_BLOCK_REF_KEY:
+ printf("\t\ttree block backref root %llu\n",
+ (unsigned long long)offset);
+ break;
+ case BTRFS_SHARED_BLOCK_REF_KEY:
+ printf("\t\tshared block backref parent %llu\n",
+ (unsigned long long)offset);
+ break;
+ case BTRFS_EXTENT_DATA_REF_KEY:
+ dref = (struct btrfs_extent_data_ref *)(&iref->offset);
+ printf("\t\textent data backref root %llu "
+ "objectid %llu offset %llu count %u\n",
+ (unsigned long long)btrfs_extent_data_ref_root(eb, dref),
+ (unsigned long long)btrfs_extent_data_ref_objectid(eb, dref),
+ (unsigned long long)btrfs_extent_data_ref_offset(eb, dref),
+ btrfs_extent_data_ref_count(eb, dref));
+ break;
+ case BTRFS_SHARED_DATA_REF_KEY:
+ sref = (struct btrfs_shared_data_ref *)(iref + 1);
+ printf("\t\tshared data backref parent %llu count %u\n",
+ (unsigned long long)offset,
+ btrfs_shared_data_ref_count(eb, sref));
+ break;
+ default:
+ return;
+ }
+ ptr += btrfs_extent_inline_ref_size(type);
+ }
+ WARN_ON(ptr > end);
+}
+
+#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
+static void print_extent_ref_v0(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_extent_ref_v0 *ref0;
+
+ ref0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_ref_v0);
+ printf("\t\textent back ref root %llu gen %llu "
+ "owner %llu num_refs %lu\n",
+ (unsigned long long)btrfs_ref_root_v0(eb, ref0),
+ (unsigned long long)btrfs_ref_generation_v0(eb, ref0),
+ (unsigned long long)btrfs_ref_objectid_v0(eb, ref0),
+ (unsigned long)btrfs_ref_count_v0(eb, ref0));
+}
+#endif
+
+static void print_root_ref(struct extent_buffer *leaf, int slot, char *tag)
+{
+ struct btrfs_root_ref *ref;
+ char namebuf[BTRFS_NAME_LEN];
+ int namelen;
+
+ ref = btrfs_item_ptr(leaf, slot, struct btrfs_root_ref);
+ namelen = btrfs_root_ref_name_len(leaf, ref);
+ read_extent_buffer(leaf, namebuf, (unsigned long)(ref + 1), namelen);
+ printf("\t\troot %s key dirid %llu sequence %llu name %.*s\n", tag,
+ (unsigned long long)btrfs_root_ref_dirid(leaf, ref),
+ (unsigned long long)btrfs_root_ref_sequence(leaf, ref),
+ namelen, namebuf);
+}
+
+static int count_bytes(void *buf, int len, char b)
+{
+ int cnt = 0;
+ int i;
+ for (i = 0; i < len; i++) {
+ if (((char*)buf)[i] == b)
+ cnt++;
+ }
+ return cnt;
+}
+
+/*
+ * Caller must ensure sizeof(*ret) >= 7 "RDONLY"
+ */
+static void root_flags_to_str(u64 flags, char *ret)
+{
+ if (flags & BTRFS_ROOT_SUBVOL_RDONLY)
+ strcat(ret, "RDONLY");
+ else
+ strcat(ret, "none");
+}
+
+static void print_root(struct extent_buffer *leaf, int slot)
+{
+ struct btrfs_root_item *ri;
+ struct btrfs_root_item root_item;
+ int len;
+ char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+ char flags_str[32] = {0};
+
+ ri = btrfs_item_ptr(leaf, slot, struct btrfs_root_item);
+ len = btrfs_item_size_nr(leaf, slot);
+
+ memset(&root_item, 0, sizeof(root_item));
+ read_extent_buffer(leaf, &root_item, (unsigned long)ri, len);
+ root_flags_to_str(btrfs_root_flags(&root_item), flags_str);
+
+ printf("\t\troot data bytenr %llu level %d dirid %llu refs %u gen %llu lastsnap %llu\n",
+ (unsigned long long)btrfs_root_bytenr(&root_item),
+ btrfs_root_level(&root_item),
+ (unsigned long long)btrfs_root_dirid(&root_item),
+ btrfs_root_refs(&root_item),
+ (unsigned long long)btrfs_root_generation(&root_item),
+ (unsigned long long)btrfs_root_last_snapshot(&root_item));
+ printf("\t\tflags 0x%llx(%s)\n", btrfs_root_flags(&root_item),
+ flags_str);
+
+ if (root_item.generation == root_item.generation_v2) {
+ uuid_unparse(root_item.uuid, uuid_str);
+ printf("\t\tuuid %s\n", uuid_str);
+ if (count_bytes(root_item.parent_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
+ uuid_unparse(root_item.parent_uuid, uuid_str);
+ printf("\t\tparent_uuid %s\n", uuid_str);
+ }
+ if (count_bytes(root_item.received_uuid, BTRFS_UUID_SIZE, 0) != BTRFS_UUID_SIZE) {
+ uuid_unparse(root_item.received_uuid, uuid_str);
+ printf("\t\treceived_uuid %s\n", uuid_str);
+ }
+ if (root_item.ctransid) {
+ printf("\t\tctransid %llu otransid %llu stransid %llu rtransid %llu\n",
+ btrfs_root_ctransid(&root_item),
+ btrfs_root_otransid(&root_item),
+ btrfs_root_stransid(&root_item),
+ btrfs_root_rtransid(&root_item));
+ }
+ }
+ if (btrfs_root_refs(&root_item) == 0) {
+ struct btrfs_key drop_key;
+ btrfs_disk_key_to_cpu(&drop_key,
+ &root_item.drop_progress);
+ printf("\t\tdrop ");
+ btrfs_print_key(&root_item.drop_progress);
+ printf(" level %d\n", root_item.drop_level);
+ }
+}
+
+static void print_free_space_header(struct extent_buffer *leaf, int slot)
+{
+ struct btrfs_free_space_header *header;
+ struct btrfs_disk_key location;
+
+ header = btrfs_item_ptr(leaf, slot, struct btrfs_free_space_header);
+ btrfs_free_space_key(leaf, header, &location);
+ printf("\t\tlocation ");
+ btrfs_print_key(&location);
+ printf("\n");
+ printf("\t\tcache generation %llu entries %llu bitmaps %llu\n",
+ (unsigned long long)btrfs_free_space_generation(leaf, header),
+ (unsigned long long)btrfs_free_space_entries(leaf, header),
+ (unsigned long long)btrfs_free_space_bitmaps(leaf, header));
+}
+
+void print_key_type(FILE *stream, u64 objectid, u8 type)
+{
+ if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
+ fprintf(stream, "UNTYPED");
+ return;
+ }
+
+ switch (type) {
+ case BTRFS_INODE_ITEM_KEY:
+ fprintf(stream, "INODE_ITEM");
+ break;
+ case BTRFS_INODE_REF_KEY:
+ fprintf(stream, "INODE_REF");
+ break;
+ case BTRFS_INODE_EXTREF_KEY:
+ fprintf(stream, "INODE_EXTREF");
+ break;
+ case BTRFS_DIR_ITEM_KEY:
+ fprintf(stream, "DIR_ITEM");
+ break;
+ case BTRFS_DIR_INDEX_KEY:
+ fprintf(stream, "DIR_INDEX");
+ break;
+ case BTRFS_DIR_LOG_ITEM_KEY:
+ fprintf(stream, "DIR_LOG_ITEM");
+ break;
+ case BTRFS_DIR_LOG_INDEX_KEY:
+ fprintf(stream, "DIR_LOG_INDEX");
+ break;
+ case BTRFS_XATTR_ITEM_KEY:
+ fprintf(stream, "XATTR_ITEM");
+ break;
+ case BTRFS_ORPHAN_ITEM_KEY:
+ fprintf(stream, "ORPHAN_ITEM");
+ break;
+ case BTRFS_ROOT_ITEM_KEY:
+ fprintf(stream, "ROOT_ITEM");
+ break;
+ case BTRFS_ROOT_REF_KEY:
+ fprintf(stream, "ROOT_REF");
+ break;
+ case BTRFS_ROOT_BACKREF_KEY:
+ fprintf(stream, "ROOT_BACKREF");
+ break;
+ case BTRFS_EXTENT_ITEM_KEY:
+ fprintf(stream, "EXTENT_ITEM");
+ break;
+ case BTRFS_METADATA_ITEM_KEY:
+ fprintf(stream, "METADATA_ITEM");
+ break;
+ case BTRFS_TREE_BLOCK_REF_KEY:
+ fprintf(stream, "TREE_BLOCK_REF");
+ break;
+ case BTRFS_SHARED_BLOCK_REF_KEY:
+ fprintf(stream, "SHARED_BLOCK_REF");
+ break;
+ case BTRFS_EXTENT_DATA_REF_KEY:
+ fprintf(stream, "EXTENT_DATA_REF");
+ break;
+ case BTRFS_SHARED_DATA_REF_KEY:
+ fprintf(stream, "SHARED_DATA_REF");
+ break;
+ case BTRFS_EXTENT_REF_V0_KEY:
+ fprintf(stream, "EXTENT_REF_V0");
+ break;
+ case BTRFS_CSUM_ITEM_KEY:
+ fprintf(stream, "CSUM_ITEM");
+ break;
+ case BTRFS_EXTENT_CSUM_KEY:
+ fprintf(stream, "EXTENT_CSUM");
+ break;
+ case BTRFS_EXTENT_DATA_KEY:
+ fprintf(stream, "EXTENT_DATA");
+ break;
+ case BTRFS_BLOCK_GROUP_ITEM_KEY:
+ fprintf(stream, "BLOCK_GROUP_ITEM");
+ break;
+ case BTRFS_FREE_SPACE_INFO_KEY:
+ fprintf(stream, "FREE_SPACE_INFO");
+ break;
+ case BTRFS_FREE_SPACE_EXTENT_KEY:
+ fprintf(stream, "FREE_SPACE_EXTENT");
+ break;
+ case BTRFS_FREE_SPACE_BITMAP_KEY:
+ fprintf(stream, "FREE_SPACE_BITMAP");
+ break;
+ case BTRFS_CHUNK_ITEM_KEY:
+ fprintf(stream, "CHUNK_ITEM");
+ break;
+ case BTRFS_DEV_ITEM_KEY:
+ fprintf(stream, "DEV_ITEM");
+ break;
+ case BTRFS_DEV_EXTENT_KEY:
+ fprintf(stream, "DEV_EXTENT");
+ break;
+ case BTRFS_BALANCE_ITEM_KEY:
+ fprintf(stream, "BALANCE_ITEM");
+ break;
+ case BTRFS_DEV_REPLACE_KEY:
+ fprintf(stream, "DEV_REPLACE");
+ break;
+ case BTRFS_STRING_ITEM_KEY:
+ fprintf(stream, "STRING_ITEM");
+ break;
+ case BTRFS_QGROUP_STATUS_KEY:
+ fprintf(stream, "QGROUP_STATUS");
+ break;
+ case BTRFS_QGROUP_RELATION_KEY:
+ fprintf(stream, "QGROUP_RELATION");
+ break;
+ case BTRFS_QGROUP_INFO_KEY:
+ fprintf(stream, "QGROUP_INFO");
+ break;
+ case BTRFS_QGROUP_LIMIT_KEY:
+ fprintf(stream, "QGROUP_LIMIT");
+ break;
+ case BTRFS_DEV_STATS_KEY:
+ fprintf(stream, "DEV_STATS");
+ break;
+ case BTRFS_UUID_KEY_SUBVOL:
+ fprintf(stream, "UUID_KEY_SUBVOL");
+ break;
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ fprintf(stream, "UUID_KEY_RECEIVED_SUBVOL");
+ break;
+ default:
+ fprintf(stream, "UNKNOWN.%d", type);
+ };
+}
+
+void print_objectid(FILE *stream, u64 objectid, u8 type)
+{
+ switch (type) {
+ case BTRFS_DEV_EXTENT_KEY:
+ /* device id */
+ fprintf(stream, "%llu", (unsigned long long)objectid);
+ return;
+ case BTRFS_QGROUP_RELATION_KEY:
+ fprintf(stream, "%llu/%llu", btrfs_qgroup_level(objectid),
+ btrfs_qgroup_subvid(objectid));
+ return;
+ case BTRFS_UUID_KEY_SUBVOL:
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ fprintf(stream, "0x%016llx", (unsigned long long)objectid);
+ return;
+ }
+
+ switch (objectid) {
+ case BTRFS_ROOT_TREE_OBJECTID:
+ if (type == BTRFS_DEV_ITEM_KEY)
+ fprintf(stream, "DEV_ITEMS");
+ else
+ fprintf(stream, "ROOT_TREE");
+ break;
+ case BTRFS_EXTENT_TREE_OBJECTID:
+ fprintf(stream, "EXTENT_TREE");
+ break;
+ case BTRFS_CHUNK_TREE_OBJECTID:
+ fprintf(stream, "CHUNK_TREE");
+ break;
+ case BTRFS_DEV_TREE_OBJECTID:
+ fprintf(stream, "DEV_TREE");
+ break;
+ case BTRFS_FS_TREE_OBJECTID:
+ fprintf(stream, "FS_TREE");
+ break;
+ case BTRFS_ROOT_TREE_DIR_OBJECTID:
+ fprintf(stream, "ROOT_TREE_DIR");
+ break;
+ case BTRFS_CSUM_TREE_OBJECTID:
+ fprintf(stream, "CSUM_TREE");
+ break;
+ case BTRFS_BALANCE_OBJECTID:
+ fprintf(stream, "BALANCE");
+ break;
+ case BTRFS_ORPHAN_OBJECTID:
+ fprintf(stream, "ORPHAN");
+ break;
+ case BTRFS_TREE_LOG_OBJECTID:
+ fprintf(stream, "TREE_LOG");
+ break;
+ case BTRFS_TREE_LOG_FIXUP_OBJECTID:
+ fprintf(stream, "LOG_FIXUP");
+ break;
+ case BTRFS_TREE_RELOC_OBJECTID:
+ fprintf(stream, "TREE_RELOC");
+ break;
+ case BTRFS_DATA_RELOC_TREE_OBJECTID:
+ fprintf(stream, "DATA_RELOC_TREE");
+ break;
+ case BTRFS_EXTENT_CSUM_OBJECTID:
+ fprintf(stream, "EXTENT_CSUM");
+ break;
+ case BTRFS_FREE_SPACE_OBJECTID:
+ fprintf(stream, "FREE_SPACE");
+ break;
+ case BTRFS_FREE_INO_OBJECTID:
+ fprintf(stream, "FREE_INO");
+ break;
+ case BTRFS_QUOTA_TREE_OBJECTID:
+ fprintf(stream, "QUOTA_TREE");
+ break;
+ case BTRFS_UUID_TREE_OBJECTID:
+ fprintf(stream, "UUID_TREE");
+ break;
+ case BTRFS_FREE_SPACE_TREE_OBJECTID:
+ fprintf(stream, "FREE_SPACE_TREE");
+ break;
+ case BTRFS_MULTIPLE_OBJECTIDS:
+ fprintf(stream, "MULTIPLE");
+ break;
+ case (u64)-1:
+ fprintf(stream, "-1");
+ break;
+ case BTRFS_FIRST_CHUNK_TREE_OBJECTID:
+ if (type == BTRFS_CHUNK_ITEM_KEY) {
+ fprintf(stream, "FIRST_CHUNK_TREE");
+ break;
+ }
+ /* fall-thru */
+ default:
+ fprintf(stream, "%llu", (unsigned long long)objectid);
+ }
+}
+
+void btrfs_print_key(struct btrfs_disk_key *disk_key)
+{
+ u64 objectid = btrfs_disk_key_objectid(disk_key);
+ u8 type = btrfs_disk_key_type(disk_key);
+ u64 offset = btrfs_disk_key_offset(disk_key);
+
+ printf("key (");
+ print_objectid(stdout, objectid, type);
+ printf(" ");
+ print_key_type(stdout, objectid, type);
+ switch (type) {
+ case BTRFS_QGROUP_RELATION_KEY:
+ case BTRFS_QGROUP_INFO_KEY:
+ case BTRFS_QGROUP_LIMIT_KEY:
+ printf(" %llu/%llu)", btrfs_qgroup_level(offset),
+ btrfs_qgroup_subvid(offset));
+ break;
+ case BTRFS_UUID_KEY_SUBVOL:
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ printf(" 0x%016llx)", (unsigned long long)offset);
+ break;
+ default:
+ if (offset == (u64)-1)
+ printf(" -1)");
+ else
+ printf(" %llu)", (unsigned long long)offset);
+ break;
+ }
+}
+
+static void print_uuid_item(struct extent_buffer *l, unsigned long offset,
+ u32 item_size)
+{
+ if (item_size & (sizeof(u64) - 1)) {
+ printf("btrfs: uuid item with illegal size %lu!\n",
+ (unsigned long)item_size);
+ return;
+ }
+ while (item_size) {
+ __le64 subvol_id;
+
+ read_extent_buffer(l, &subvol_id, offset, sizeof(u64));
+ printf("\t\tsubvol_id %llu\n",
+ (unsigned long long)le64_to_cpu(subvol_id));
+ item_size -= sizeof(u64);
+ offset += sizeof(u64);
+ }
+}
+
+/* Btrfs inode flag stringification helper */
+#define STRCAT_ONE_INODE_FLAG(flags, name, empty, dst) ({ \
+ if (flags & BTRFS_INODE_##name) { \
+ if (!empty) \
+ strcat(dst, "|"); \
+ strcat(dst, #name); \
+ empty = 0; \
+ } \
+})
+
+/*
+ * Caller should ensure sizeof(*ret) >= 102: all charactors plus '|' of
+ * BTRFS_INODE_* flags
+ */
+static void inode_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ STRCAT_ONE_INODE_FLAG(flags, NODATASUM, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NODATACOW, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, READONLY, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NOCOMPRESS, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, PREALLOC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, SYNC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, IMMUTABLE, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, APPEND, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NODUMP, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, NOATIME, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, DIRSYNC, empty, ret);
+ STRCAT_ONE_INODE_FLAG(flags, COMPRESS, empty, ret);
+ if (empty)
+ strcat(ret, "none");
+}
+