static void print_inode_item(struct extent_buffer *eb, struct btrfs_inode_item *ii) { char flags_str[256]; memset(flags_str, 0, sizeof(flags_str)); inode_flags_to_str(btrfs_inode_flags(eb, ii), flags_str); printf("\t\tinode generation %llu transid %llu size %llu nbytes %llu\n" "\t\tblock group %llu mode %o links %u uid %u gid %u rdev %llu\n" "\t\tsequence %llu flags 0x%llx(%s)\n", (unsigned long long)btrfs_inode_generation(eb, ii), (unsigned long long)btrfs_inode_transid(eb, ii), (unsigned long long)btrfs_inode_size(eb, ii), (unsigned long long)btrfs_inode_nbytes(eb, ii), (unsigned long long)btrfs_inode_block_group(eb,ii), btrfs_inode_mode(eb, ii), btrfs_inode_nlink(eb, ii), btrfs_inode_uid(eb, ii), btrfs_inode_gid(eb, ii), (unsigned long long)btrfs_inode_rdev(eb,ii), (unsigned long long)btrfs_inode_flags(eb,ii), (unsigned long long)btrfs_inode_sequence(eb, ii), flags_str); print_timespec(eb, btrfs_inode_atime(ii), "\t\tatime ", "\n"); print_timespec(eb, btrfs_inode_ctime(ii), "\t\tctime ", "\n"); print_timespec(eb, btrfs_inode_mtime(ii), "\t\tmtime ", "\n"); print_timespec(eb, btrfs_inode_otime(ii), "\t\totime ", "\n"); }
static int copy_metadata(struct btrfs_root *root, int fd, struct btrfs_key *key) { struct btrfs_path *path; struct btrfs_inode_item *inode_item; int ret; path = btrfs_alloc_path(); if (!path) { fprintf(stderr, "ERROR: Ran out of memory\n"); return -ENOMEM; } ret = btrfs_lookup_inode(NULL, root, path, key, 0); if (ret == 0) { struct btrfs_timespec *bts; struct timespec times[2]; inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_inode_item); ret = fchown(fd, btrfs_inode_uid(path->nodes[0], inode_item), btrfs_inode_gid(path->nodes[0], inode_item)); if (ret) { fprintf(stderr, "ERROR: Failed to change owner: %s\n", strerror(errno)); goto out; } ret = fchmod(fd, btrfs_inode_mode(path->nodes[0], inode_item)); if (ret) { fprintf(stderr, "ERROR: Failed to change mode: %s\n", strerror(errno)); goto out; } bts = btrfs_inode_atime(inode_item); times[0].tv_sec = btrfs_timespec_sec(path->nodes[0], bts); times[0].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts); bts = btrfs_inode_mtime(inode_item); times[1].tv_sec = btrfs_timespec_sec(path->nodes[0], bts); times[1].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts); ret = futimens(fd, times); if (ret) { fprintf(stderr, "ERROR: Failed to set times: %s\n", strerror(errno)); goto out; } } out: btrfs_free_path(path); return ret; }
static int copy_file(struct btrfs_root *root, int fd, struct btrfs_key *key, const char *file) { struct extent_buffer *leaf; struct btrfs_path *path; struct btrfs_file_extent_item *fi; struct btrfs_inode_item *inode_item; struct btrfs_timespec *bts; struct btrfs_key found_key; int ret; int extent_type; int compression; int loops = 0; u64 found_size = 0; struct timespec times[2]; int times_ok = 0; path = btrfs_alloc_path(); if (!path) { fprintf(stderr, "Ran out of memory\n"); return -ENOMEM; } ret = btrfs_lookup_inode(NULL, root, path, key, 0); if (ret == 0) { inode_item = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_inode_item); found_size = btrfs_inode_size(path->nodes[0], inode_item); if (restore_metadata) { /* * Change the ownership and mode now, set times when * copyout is finished. */ ret = fchown(fd, btrfs_inode_uid(path->nodes[0], inode_item), btrfs_inode_gid(path->nodes[0], inode_item)); if (ret && !ignore_errors) goto out; ret = fchmod(fd, btrfs_inode_mode(path->nodes[0], inode_item)); if (ret && !ignore_errors) goto out; bts = btrfs_inode_atime(inode_item); times[0].tv_sec = btrfs_timespec_sec(path->nodes[0], bts); times[0].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts); bts = btrfs_inode_mtime(inode_item); times[1].tv_sec = btrfs_timespec_sec(path->nodes[0], bts); times[1].tv_nsec = btrfs_timespec_nsec(path->nodes[0], bts); times_ok = 1; } }
static int copy_metadata(struct btrfs_root *root, int fd, struct btrfs_key *key) { struct btrfs_path path; struct btrfs_inode_item *inode_item; int ret; btrfs_init_path(&path); ret = btrfs_lookup_inode(NULL, root, &path, key, 0); if (ret == 0) { struct btrfs_timespec *bts; struct timespec times[2]; inode_item = btrfs_item_ptr(path.nodes[0], path.slots[0], struct btrfs_inode_item); ret = fchown(fd, btrfs_inode_uid(path.nodes[0], inode_item), btrfs_inode_gid(path.nodes[0], inode_item)); if (ret) { error("failed to change owner: %m"); goto out; } ret = fchmod(fd, btrfs_inode_mode(path.nodes[0], inode_item)); if (ret) { error("failed to change mode: %m"); goto out; } bts = btrfs_inode_atime(inode_item); times[0].tv_sec = btrfs_timespec_sec(path.nodes[0], bts); times[0].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts); bts = btrfs_inode_mtime(inode_item); times[1].tv_sec = btrfs_timespec_sec(path.nodes[0], bts); times[1].tv_nsec = btrfs_timespec_nsec(path.nodes[0], bts); ret = futimens(fd, times); if (ret) { error("failed to set times: %m"); goto out; } } out: btrfs_release_path(&path); return ret; }
void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) { int i; char *str; struct btrfs_item *item; struct btrfs_dir_item *di; struct btrfs_inode_item *ii; struct btrfs_file_extent_item *fi; struct btrfs_block_group_item *bi; struct btrfs_extent_data_ref *dref; struct btrfs_shared_data_ref *sref; struct btrfs_inode_ref *iref; struct btrfs_inode_extref *iref2; struct btrfs_dev_extent *dev_extent; struct btrfs_disk_key disk_key; struct btrfs_block_group_item bg_item; struct btrfs_dir_log_item *dlog; struct btrfs_qgroup_info_item *qg_info; struct btrfs_qgroup_limit_item *qg_limit; struct btrfs_qgroup_status_item *qg_status; u32 nr = btrfs_header_nritems(l); u64 objectid; u32 type; char flags_str[32]; printf("leaf %llu items %d free space %d generation %llu owner %llu\n", (unsigned long long)btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l), (unsigned long long)btrfs_header_generation(l), (unsigned long long)btrfs_header_owner(l)); print_uuids(l); fflush(stdout); for (i = 0 ; i < nr ; i++) { item = btrfs_item_nr(i); btrfs_item_key(l, &disk_key, i); objectid = btrfs_disk_key_objectid(&disk_key); type = btrfs_disk_key_type(&disk_key); printf("\titem %d ", i); btrfs_print_key(&disk_key); printf(" itemoff %d itemsize %d\n", btrfs_item_offset(l, item), btrfs_item_size(l, item)); if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) print_free_space_header(l, i); switch (type) { case BTRFS_INODE_ITEM_KEY: ii = btrfs_item_ptr(l, i, struct btrfs_inode_item); printf("\t\tinode generation %llu transid %llu size %llu nbytes %llu\n" "\t\tblock group %llu mode %o links %u uid %u gid %u\n" "\t\trdev %llu flags 0x%llx\n", (unsigned long long)btrfs_inode_generation(l, ii), (unsigned long long)btrfs_inode_transid(l, ii), (unsigned long long)btrfs_inode_size(l, ii), (unsigned long long)btrfs_inode_nbytes(l, ii), (unsigned long long)btrfs_inode_block_group(l,ii), btrfs_inode_mode(l, ii), btrfs_inode_nlink(l, ii), btrfs_inode_uid(l, ii), btrfs_inode_gid(l, ii), (unsigned long long)btrfs_inode_rdev(l,ii), (unsigned long long)btrfs_inode_flags(l,ii)); break; case BTRFS_INODE_REF_KEY: iref = btrfs_item_ptr(l, i, struct btrfs_inode_ref); print_inode_ref_item(l, item, iref); break; case BTRFS_INODE_EXTREF_KEY: iref2 = btrfs_item_ptr(l, i, struct btrfs_inode_extref); print_inode_extref_item(l, item, iref2); break; case BTRFS_DIR_ITEM_KEY: case BTRFS_DIR_INDEX_KEY: case BTRFS_XATTR_ITEM_KEY: di = btrfs_item_ptr(l, i, struct btrfs_dir_item); print_dir_item(l, item, di); break; case BTRFS_DIR_LOG_INDEX_KEY: case BTRFS_DIR_LOG_ITEM_KEY: dlog = btrfs_item_ptr(l, i, struct btrfs_dir_log_item); printf("\t\tdir log end %Lu\n", (unsigned long long)btrfs_dir_log_end(l, dlog)); break; case BTRFS_ORPHAN_ITEM_KEY: printf("\t\torphan item\n"); break; case BTRFS_ROOT_ITEM_KEY: print_root(l, i); break; case BTRFS_ROOT_REF_KEY: print_root_ref(l, i, "ref"); break; case BTRFS_ROOT_BACKREF_KEY: print_root_ref(l, i, "backref"); break; case BTRFS_EXTENT_ITEM_KEY: print_extent_item(l, i, 0); break; case BTRFS_METADATA_ITEM_KEY: print_extent_item(l, i, 1); break; case BTRFS_TREE_BLOCK_REF_KEY: printf("\t\ttree block backref\n"); break; case BTRFS_SHARED_BLOCK_REF_KEY: printf("\t\tshared block backref\n"); break; case BTRFS_EXTENT_DATA_REF_KEY: dref = btrfs_item_ptr(l, i, struct btrfs_extent_data_ref); printf("\t\textent data backref root %llu " "objectid %llu offset %llu count %u\n", (unsigned long long)btrfs_extent_data_ref_root(l, dref), (unsigned long long)btrfs_extent_data_ref_objectid(l, dref), (unsigned long long)btrfs_extent_data_ref_offset(l, dref), btrfs_extent_data_ref_count(l, dref)); break; case BTRFS_SHARED_DATA_REF_KEY: sref = btrfs_item_ptr(l, i, struct btrfs_shared_data_ref); printf("\t\tshared data backref count %u\n", btrfs_shared_data_ref_count(l, sref)); break; case BTRFS_EXTENT_REF_V0_KEY: #ifdef BTRFS_COMPAT_EXTENT_TREE_V0 print_extent_ref_v0(l, i); #else BUG(); #endif break; case BTRFS_CSUM_ITEM_KEY: printf("\t\tcsum item\n"); break; case BTRFS_EXTENT_CSUM_KEY: printf("\t\textent csum item\n"); break; case BTRFS_EXTENT_DATA_KEY: fi = btrfs_item_ptr(l, i, struct btrfs_file_extent_item); print_file_extent_item(l, item, i, fi); break; case BTRFS_BLOCK_GROUP_ITEM_KEY: bi = btrfs_item_ptr(l, i, struct btrfs_block_group_item); read_extent_buffer(l, &bg_item, (unsigned long)bi, sizeof(bg_item)); memset(flags_str, 0, sizeof(flags_str)); bg_flags_to_str(btrfs_block_group_flags(&bg_item), flags_str); printf("\t\tblock group used %llu chunk_objectid %llu flags %s\n", (unsigned long long)btrfs_block_group_used(&bg_item), (unsigned long long)btrfs_block_group_chunk_objectid(&bg_item), flags_str); break; case BTRFS_CHUNK_ITEM_KEY: print_chunk(l, btrfs_item_ptr(l, i, struct btrfs_chunk)); break; case BTRFS_DEV_ITEM_KEY: print_dev_item(l, btrfs_item_ptr(l, i, struct btrfs_dev_item)); break; case BTRFS_DEV_EXTENT_KEY: dev_extent = btrfs_item_ptr(l, i, struct btrfs_dev_extent); printf("\t\tdev extent chunk_tree %llu\n" "\t\tchunk objectid %llu chunk offset %llu " "length %llu\n", (unsigned long long) btrfs_dev_extent_chunk_tree(l, dev_extent), (unsigned long long) btrfs_dev_extent_chunk_objectid(l, dev_extent), (unsigned long long) btrfs_dev_extent_chunk_offset(l, dev_extent), (unsigned long long) btrfs_dev_extent_length(l, dev_extent)); break; case BTRFS_QGROUP_STATUS_KEY: qg_status = btrfs_item_ptr(l, i, struct btrfs_qgroup_status_item); memset(flags_str, 0, sizeof(flags_str)); qgroup_flags_to_str(btrfs_qgroup_status_flags(l, qg_status), flags_str); printf("\t\tversion %llu generation %llu flags %s " "scan %lld\n", (unsigned long long) btrfs_qgroup_status_version(l, qg_status), (unsigned long long) btrfs_qgroup_status_generation(l, qg_status), flags_str, (unsigned long long) btrfs_qgroup_status_scan(l, qg_status)); break; case BTRFS_QGROUP_RELATION_KEY: break; case BTRFS_QGROUP_INFO_KEY: qg_info = btrfs_item_ptr(l, i, struct btrfs_qgroup_info_item); printf("\t\tgeneration %llu\n" "\t\treferenced %llu referenced compressed %llu\n" "\t\texclusive %llu exclusive compressed %llu\n", (unsigned long long) btrfs_qgroup_info_generation(l, qg_info), (unsigned long long) btrfs_qgroup_info_referenced(l, qg_info), (unsigned long long) btrfs_qgroup_info_referenced_compressed(l, qg_info), (unsigned long long) btrfs_qgroup_info_exclusive(l, qg_info), (unsigned long long) btrfs_qgroup_info_exclusive_compressed(l, qg_info)); break; case BTRFS_QGROUP_LIMIT_KEY: qg_limit = btrfs_item_ptr(l, i, struct btrfs_qgroup_limit_item); printf("\t\tflags %llx\n" "\t\tmax referenced %lld max exclusive %lld\n" "\t\trsv referenced %lld rsv exclusive %lld\n", (unsigned long long) btrfs_qgroup_limit_flags(l, qg_limit), (long long) btrfs_qgroup_limit_max_referenced(l, qg_limit), (long long) btrfs_qgroup_limit_max_exclusive(l, qg_limit), (long long) btrfs_qgroup_limit_rsv_referenced(l, qg_limit), (long long) btrfs_qgroup_limit_rsv_exclusive(l, qg_limit)); break; case BTRFS_UUID_KEY_SUBVOL: case BTRFS_UUID_KEY_RECEIVED_SUBVOL: print_uuid_item(l, btrfs_item_ptr_offset(l, i), btrfs_item_size_nr(l, i)); break; case BTRFS_STRING_ITEM_KEY: /* dirty, but it's simple */ str = l->data + btrfs_item_ptr_offset(l, i); printf("\t\titem data %.*s\n", btrfs_item_size(l, item), str); break; case BTRFS_DEV_STATS_KEY: printf("\t\tdevice stats\n"); break; }; fflush(stdout); } }