+/*
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
#include <stdio.h>
#include <stdlib.h>
+#include <uuid/uuid.h>
#include "kerncompat.h"
#include "radix-tree.h"
#include "ctree.h"
#include "disk-io.h"
+#include "print-tree.h"
+#include "utils.h"
+
+
+static void print_dir_item_type(struct extent_buffer *eb,
+ struct btrfs_dir_item *di)
+{
+ u8 type = btrfs_dir_type(eb, di);
+ static const char* dir_item_str[] = {
+ [BTRFS_FT_REG_FILE] = "FILE",
+ [BTRFS_FT_DIR] = "DIR",
+ [BTRFS_FT_CHRDEV] = "CHRDEV",
+ [BTRFS_FT_BLKDEV] = "BLKDEV",
+ [BTRFS_FT_FIFO] = "FIFO",
+ [BTRFS_FT_SOCK] = "SOCK",
+ [BTRFS_FT_SYMLINK] = "SYMLINK",
+ [BTRFS_FT_XATTR] = "XATTR"
+ };
+
+ if (type < ARRAY_SIZE(dir_item_str) && dir_item_str[type])
+ printf("%s", dir_item_str[type]);
+ else
+ printf("DIR_ITEM.%u", type);
+}
+
+static void print_dir_item(struct extent_buffer *eb, u32 size,
+ struct btrfs_dir_item *di)
+{
+ u32 cur = 0;
+ u32 len;
+ u32 name_len;
+ u32 data_len;
+ char namebuf[BTRFS_NAME_LEN];
+ struct btrfs_disk_key location;
+
+ while (cur < size) {
+ btrfs_dir_item_key(eb, di, &location);
+ printf("\t\tlocation ");
+ btrfs_print_key(&location);
+ printf(" type ");
+ print_dir_item_type(eb, di);
+ printf("\n");
+ name_len = btrfs_dir_name_len(eb, di);
+ data_len = btrfs_dir_data_len(eb, di);
+ len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
+ read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len);
+ printf("\t\ttransid %llu data_len %u name_len %u\n",
+ btrfs_dir_transid(eb, di),
+ data_len, name_len);
+ printf("\t\tname: %.*s\n", len, namebuf);
+ if (data_len) {
+ len = (data_len <= sizeof(namebuf))? data_len: sizeof(namebuf);
+ read_extent_buffer(eb, namebuf,
+ (unsigned long)(di + 1) + name_len, len);
+ printf("\t\tdata %.*s\n", len, namebuf);
+ }
+ len = sizeof(*di) + name_len + data_len;
+ di = (struct btrfs_dir_item *)((char *)di + len);
+ cur += len;
+ }
+}
+
+static void print_inode_extref_item(struct extent_buffer *eb, u32 size,
+ struct btrfs_inode_extref *extref)
+{
+ u32 cur = 0;
+ u32 len;
+ u32 name_len = 0;
+ u64 index = 0;
+ u64 parent_objid;
+ char namebuf[BTRFS_NAME_LEN];
+
+ while (cur < size) {
+ index = btrfs_inode_extref_index(eb, extref);
+ name_len = btrfs_inode_extref_name_len(eb, extref);
+ parent_objid = btrfs_inode_extref_parent(eb, extref);
+
+ len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
+
+ read_extent_buffer(eb, namebuf, (unsigned long)(extref->name), len);
+
+ printf("\t\tindex %llu parent %llu namelen %u name: %.*s\n",
+ (unsigned long long)index,
+ (unsigned long long)parent_objid,
+ name_len, len, namebuf);
+
+ len = sizeof(*extref) + name_len;
+ extref = (struct btrfs_inode_extref *)((char *)extref + len);
+ cur += len;
+ }
+}
+
+static void print_inode_ref_item(struct extent_buffer *eb, u32 size,
+ struct btrfs_inode_ref *ref)
+{
+ u32 cur = 0;
+ u32 len;
+ u32 name_len;
+ u64 index;
+ char namebuf[BTRFS_NAME_LEN];
+
+ while (cur < size) {
+ name_len = btrfs_inode_ref_name_len(eb, ref);
+ index = btrfs_inode_ref_index(eb, ref);
+ len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
+ read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
+ printf("\t\tindex %llu namelen %u name: %.*s\n",
+ (unsigned long long)index, name_len, len, namebuf);
+ len = sizeof(*ref) + name_len;
+ ref = (struct btrfs_inode_ref *)((char *)ref + len);
+ cur += len;
+ }
+}
+
+/* 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 btrfs_print_leaf(struct btrfs_root *root, struct btrfs_leaf *l)
+void print_chunk_item(struct extent_buffer *eb, struct btrfs_chunk *chunk)
{
+ u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
int i;
- u32 nr = btrfs_header_nritems(&l->header);
- struct btrfs_item *item;
+ u32 chunk_item_size;
+ char chunk_flags_str[32] = {0};
+
+ /* The chunk must contain at least one stripe */
+ if (num_stripes < 1) {
+ printf("invalid num_stripes: %u\n", num_stripes);
+ return;
+ }
+
+ chunk_item_size = btrfs_chunk_item_size(num_stripes);
+
+ if ((unsigned long)chunk + chunk_item_size > eb->len) {
+ printf("\t\tchunk item invalid\n");
+ return;
+ }
+
+ bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
+ printf("\t\tlength %llu owner %llu stripe_len %llu type %s\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),
+ chunk_flags_str);
+ printf("\t\tio_align %u io_width %u sector_size %u\n",
+ btrfs_chunk_io_align(eb, chunk),
+ btrfs_chunk_io_width(eb, chunk),
+ btrfs_chunk_sector_size(eb, chunk));
+ printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes,
+ btrfs_chunk_sub_stripes(eb, chunk));
+ for (i = 0 ; i < num_stripes ; i++) {
+ unsigned char dev_uuid[BTRFS_UUID_SIZE];
+ char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
+ u64 uuid_offset;
+ u64 stripe_offset;
+
+ uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i);
+ stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i);
+
+ if (uuid_offset < stripe_offset ||
+ (uuid_offset + BTRFS_UUID_SIZE) >
+ (stripe_offset + sizeof(struct btrfs_stripe))) {
+ printf("\t\t\tstripe %d invalid\n", i);
+ break;
+ }
+
+ read_extent_buffer(eb, dev_uuid,
+ uuid_offset,
+ 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 uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+ char fsid_str[BTRFS_UUID_UNPARSED_SIZE];
+ u8 uuid[BTRFS_UUID_SIZE];
+ u8 fsid[BTRFS_UUID_SIZE];
+
+ read_extent_buffer(eb, uuid,
+ (unsigned long)btrfs_device_uuid(dev_item),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(uuid, uuid_str);
+ read_extent_buffer(eb, fsid,
+ (unsigned long)btrfs_device_fsid(dev_item),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(fsid, fsid_str);
+ printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n"
+ "\t\tio_align %u io_width %u sector_size %u type %llu\n"
+ "\t\tgeneration %llu start_offset %llu dev_group %u\n"
+ "\t\tseek_speed %hhu bandwidth %hhu\n"
+ "\t\tuuid %s\n"
+ "\t\tfsid %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),
+ btrfs_device_io_align(eb, dev_item),
+ btrfs_device_io_width(eb, dev_item),
+ btrfs_device_sector_size(eb, dev_item),
+ (unsigned long long)btrfs_device_type(eb, dev_item),
+ (unsigned long long)btrfs_device_generation(eb, dev_item),
+ (unsigned long long)btrfs_device_start_offset(eb, dev_item),
+ btrfs_device_group(eb, dev_item),
+ btrfs_device_seek_speed(eb, dev_item),
+ btrfs_device_bandwidth(eb, dev_item),
+ uuid_str, fsid_str);
+}
+
+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;
+ case BTRFS_COMPRESS_ZSTD:
+ strcpy(ret, "zstd");
+ break;
+ default:
+ sprintf(ret, "UNKNOWN.%d", compress_type);
+ }
+}
+
+static const char* file_extent_type_to_str(u8 type)
+{
+ switch (type) {
+ case BTRFS_FILE_EXTENT_INLINE: return "inline";
+ case BTRFS_FILE_EXTENT_PREALLOC: return "prealloc";
+ case BTRFS_FILE_EXTENT_REG: return "regular";
+ default: return "unknown";
+ }
+}
+
+static void print_file_extent_item(struct extent_buffer *eb,
+ struct btrfs_item *item,
+ int slot,
+ struct btrfs_file_extent_item *fi)
+{
+ unsigned char extent_type = btrfs_file_extent_type(eb, fi);
+ char compress_str[16];
+
+ compress_type_to_str(btrfs_file_extent_compression(eb, fi),
+ compress_str);
+
+ printf("\t\tgeneration %llu type %hhu (%s)\n",
+ btrfs_file_extent_generation(eb, fi),
+ extent_type, file_extent_type_to_str(extent_type));
+
+ if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
+ printf("\t\tinline extent data size %u ram_bytes %u compression %hhu (%s)\n",
+ btrfs_file_extent_inline_item_len(eb, item),
+ btrfs_file_extent_inline_len(eb, slot, fi),
+ btrfs_file_extent_compression(eb, 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 %hhu (%s)\n",
+ btrfs_file_extent_compression(eb, fi),
+ 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\trefs %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\trefs %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, const 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 empty_uuid(const u8 *uuid)
+{
+ int i;
+
+ for (i = 0; i < BTRFS_UUID_SIZE; i++)
+ if (uuid[i])
+ return 0;
+ return 1;
+}
+
+/*
+ * 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_timespec(struct extent_buffer *eb,
+ struct btrfs_timespec *timespec, const char *prefix,
+ const char *suffix)
+{
+ struct tm tm;
+ u64 tmp_u64;
+ u32 tmp_u32;
+ time_t tmp_time;
+ char timestamp[256];
+
+ tmp_u64 = btrfs_timespec_sec(eb, timespec);
+ tmp_u32 = btrfs_timespec_nsec(eb, timespec);
+ tmp_time = tmp_u64;
+ localtime_r(&tmp_time, &tm);
+ strftime(timestamp, sizeof(timestamp),
+ "%Y-%m-%d %H:%M:%S", &tm);
+ printf("%s%llu.%u (%s)%s", prefix, (unsigned long long)tmp_u64, tmp_u32,
+ timestamp, suffix);
+}
+
+static void print_root_item(struct extent_buffer *leaf, int slot)
+{
struct btrfs_root_item *ri;
- struct btrfs_dir_item *di;
- struct btrfs_device_item *devi;
- struct btrfs_inode_item *ii;
- struct btrfs_file_extent_item *fi;
- struct btrfs_csum_item *ci;
- char *p;
- u32 type;
-
- printf("leaf %Lu ptrs %d free space %d generation %Lu\n",
- btrfs_header_blocknr(&l->header), nr,
- btrfs_leaf_free_space(root, l),
- btrfs_header_generation(&l->header));
+ struct btrfs_root_item root_item;
+ int len;
+ char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+ char flags_str[32] = {0};
+ struct btrfs_key drop_key;
+
+ 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\tgeneration %llu root_dirid %llu bytenr %llu level %hhu refs %u\n",
+ (unsigned long long)btrfs_root_generation(&root_item),
+ (unsigned long long)btrfs_root_dirid(&root_item),
+ (unsigned long long)btrfs_root_bytenr(&root_item),
+ btrfs_root_level(&root_item),
+ btrfs_root_refs(&root_item));
+ printf("\t\tlastsnap %llu byte_limit %llu bytes_used %llu flags 0x%llx(%s)\n",
+ (unsigned long long)btrfs_root_last_snapshot(&root_item),
+ (unsigned long long)btrfs_root_limit(&root_item),
+ (unsigned long long)btrfs_root_used(&root_item),
+ (unsigned long long)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 (!empty_uuid(root_item.parent_uuid)) {
+ uuid_unparse(root_item.parent_uuid, uuid_str);
+ printf("\t\tparent_uuid %s\n", uuid_str);
+ }
+ if (!empty_uuid(root_item.received_uuid)) {
+ 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_timespec_sec(leaf, btrfs_root_ctime(ri)))
+ print_timespec(leaf, btrfs_root_ctime(ri),
+ "\t\tctime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_otime(ri)))
+ print_timespec(leaf, btrfs_root_otime(ri),
+ "\t\totime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_stime(ri)))
+ print_timespec(leaf, btrfs_root_stime(ri),
+ "\t\tstime ", "\n");
+ if (btrfs_timespec_sec(leaf, btrfs_root_rtime(ri)))
+ print_timespec(leaf, btrfs_root_rtime(ri),
+ "\t\trtime ", "\n");
+ }
+
+ btrfs_disk_key_to_cpu(&drop_key, &root_item.drop_progress);
+ printf("\t\tdrop ");
+ btrfs_print_key(&root_item.drop_progress);
+ printf(" level %hhu\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)
+{
+ static const char* key_to_str[256] = {
+ [BTRFS_INODE_ITEM_KEY] = "INODE_ITEM",
+ [BTRFS_INODE_REF_KEY] = "INODE_REF",
+ [BTRFS_INODE_EXTREF_KEY] = "INODE_EXTREF",
+ [BTRFS_DIR_ITEM_KEY] = "DIR_ITEM",
+ [BTRFS_DIR_INDEX_KEY] = "DIR_INDEX",
+ [BTRFS_DIR_LOG_ITEM_KEY] = "DIR_LOG_ITEM",
+ [BTRFS_DIR_LOG_INDEX_KEY] = "DIR_LOG_INDEX",
+ [BTRFS_XATTR_ITEM_KEY] = "XATTR_ITEM",
+ [BTRFS_ORPHAN_ITEM_KEY] = "ORPHAN_ITEM",
+ [BTRFS_ROOT_ITEM_KEY] = "ROOT_ITEM",
+ [BTRFS_ROOT_REF_KEY] = "ROOT_REF",
+ [BTRFS_ROOT_BACKREF_KEY] = "ROOT_BACKREF",
+ [BTRFS_EXTENT_ITEM_KEY] = "EXTENT_ITEM",
+ [BTRFS_METADATA_ITEM_KEY] = "METADATA_ITEM",
+ [BTRFS_TREE_BLOCK_REF_KEY] = "TREE_BLOCK_REF",
+ [BTRFS_SHARED_BLOCK_REF_KEY] = "SHARED_BLOCK_REF",
+ [BTRFS_EXTENT_DATA_REF_KEY] = "EXTENT_DATA_REF",
+ [BTRFS_SHARED_DATA_REF_KEY] = "SHARED_DATA_REF",
+ [BTRFS_EXTENT_REF_V0_KEY] = "EXTENT_REF_V0",
+ [BTRFS_CSUM_ITEM_KEY] = "CSUM_ITEM",
+ [BTRFS_EXTENT_CSUM_KEY] = "EXTENT_CSUM",
+ [BTRFS_EXTENT_DATA_KEY] = "EXTENT_DATA",
+ [BTRFS_BLOCK_GROUP_ITEM_KEY] = "BLOCK_GROUP_ITEM",
+ [BTRFS_FREE_SPACE_INFO_KEY] = "FREE_SPACE_INFO",
+ [BTRFS_FREE_SPACE_EXTENT_KEY] = "FREE_SPACE_EXTENT",
+ [BTRFS_FREE_SPACE_BITMAP_KEY] = "FREE_SPACE_BITMAP",
+ [BTRFS_CHUNK_ITEM_KEY] = "CHUNK_ITEM",
+ [BTRFS_DEV_ITEM_KEY] = "DEV_ITEM",
+ [BTRFS_DEV_EXTENT_KEY] = "DEV_EXTENT",
+ [BTRFS_TEMPORARY_ITEM_KEY] = "TEMPORARY_ITEM",
+ [BTRFS_DEV_REPLACE_KEY] = "DEV_REPLACE",
+ [BTRFS_STRING_ITEM_KEY] = "STRING_ITEM",
+ [BTRFS_QGROUP_STATUS_KEY] = "QGROUP_STATUS",
+ [BTRFS_QGROUP_RELATION_KEY] = "QGROUP_RELATION",
+ [BTRFS_QGROUP_INFO_KEY] = "QGROUP_INFO",
+ [BTRFS_QGROUP_LIMIT_KEY] = "QGROUP_LIMIT",
+ [BTRFS_PERSISTENT_ITEM_KEY] = "PERSISTENT_ITEM",
+ [BTRFS_UUID_KEY_SUBVOL] = "UUID_KEY_SUBVOL",
+ [BTRFS_UUID_KEY_RECEIVED_SUBVOL] = "UUID_KEY_RECEIVED_SUBVOL",
+ };
+
+ if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID) {
+ fprintf(stream, "UNTYPED");
+ return;
+ }
+
+
+ if (key_to_str[type])
+ fputs(key_to_str[type], stream);
+ else
+ 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;
+
+ /*
+ * Key offsets of ROOT_ITEM point to tree root, print them in human
+ * readable format. Especially useful for trees like data/tree reloc
+ * tree, whose tree id can be negative.
+ */
+ case BTRFS_ROOT_ITEM_KEY:
+ printf(" ");
+ print_objectid(stdout, offset, type);
+ printf(")");
+ 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");
+}
+
+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\tgeneration %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_sequence(eb, ii),
+ (unsigned long long)btrfs_inode_flags(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 void print_disk_balance_args(struct btrfs_disk_balance_args *ba)
+{
+ printf("\t\tprofiles %llu devid %llu target %llu flags %llu\n",
+ (unsigned long long)le64_to_cpu(ba->profiles),
+ (unsigned long long)le64_to_cpu(ba->devid),
+ (unsigned long long)le64_to_cpu(ba->target),
+ (unsigned long long)le64_to_cpu(ba->flags));
+ printf("\t\tusage_min %u usage_max %u pstart %llu pend %llu\n",
+ le32_to_cpu(ba->usage_min),
+ le32_to_cpu(ba->usage_max),
+ (unsigned long long)le64_to_cpu(ba->pstart),
+ (unsigned long long)le64_to_cpu(ba->pend));
+ printf("\t\tvstart %llu vend %llu limit_min %u limit_max %u\n",
+ (unsigned long long)le64_to_cpu(ba->vstart),
+ (unsigned long long)le64_to_cpu(ba->vend),
+ le32_to_cpu(ba->limit_min),
+ le32_to_cpu(ba->limit_max));
+ printf("\t\tstripes_min %u stripes_max %u\n",
+ le32_to_cpu(ba->stripes_min),
+ le32_to_cpu(ba->stripes_max));
+}
+
+static void print_balance_item(struct extent_buffer *eb,
+ struct btrfs_balance_item *bi)
+{
+ printf("\t\tbalance status flags %llu\n",
+ btrfs_balance_item_flags(eb, bi));
+
+ printf("\t\tDATA\n");
+ print_disk_balance_args(btrfs_balance_item_data(eb, bi));
+ printf("\t\tMETADATA\n");
+ print_disk_balance_args(btrfs_balance_item_meta(eb, bi));
+ printf("\t\tSYSTEM\n");
+ print_disk_balance_args(btrfs_balance_item_sys(eb, bi));
+}
+
+static void print_dev_stats(struct extent_buffer *eb,
+ struct btrfs_dev_stats_item *stats, u32 size)
+{
+ int i;
+ u32 known = BTRFS_DEV_STAT_VALUES_MAX * sizeof(__le64);
+ __le64 *values = btrfs_dev_stats_values(eb, stats);
+
+ printf("\t\tdevice stats\n");
+ printf("\t\twrite_errs %llu read_errs %llu flush_errs %llu corruption_errs %llu generation %llu\n",
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_WRITE_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_READ_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_FLUSH_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_CORRUPTION_ERRS]),
+ (unsigned long long)le64_to_cpu(values[BTRFS_DEV_STAT_GENERATION_ERRS]));
+
+ if (known < size) {
+ printf("\t\tunknown stats item bytes %u", size - known);
+ for (i = BTRFS_DEV_STAT_VALUES_MAX; i * sizeof(__le64) < size; i++) {
+ printf("\t\tunknown item %u offset %zu value %llu\n",
+ i, i * sizeof(__le64),
+ (unsigned long long)le64_to_cpu(values[i]));
+ }
+ }
+}
+
+static void print_block_group_item(struct extent_buffer *eb,
+ struct btrfs_block_group_item *bgi)
+{
+ struct btrfs_block_group_item bg_item;
+ char flags_str[256];
+
+ read_extent_buffer(eb, &bg_item, (unsigned long)bgi, 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);
+}
+
+static void print_extent_data_ref(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_extent_data_ref *dref;
+
+ dref = btrfs_item_ptr(eb, slot, 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(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));
+}
+
+static void print_shared_data_ref(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_shared_data_ref *sref;
+
+ sref = btrfs_item_ptr(eb, slot, struct btrfs_shared_data_ref);
+ printf("\t\tshared data backref count %u\n",
+ btrfs_shared_data_ref_count(eb, sref));
+}
+
+static void print_free_space_info(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_free_space_info *free_info;
+
+ free_info = btrfs_item_ptr(eb, slot, struct btrfs_free_space_info);
+ printf("\t\tfree space info extent count %u flags %u\n",
+ (unsigned)btrfs_free_space_extent_count(eb, free_info),
+ (unsigned)btrfs_free_space_flags(eb, free_info));
+}
+
+static void print_dev_extent(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_dev_extent *dev_extent;
+ u8 uuid[BTRFS_UUID_SIZE];
+ char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
+
+ dev_extent = btrfs_item_ptr(eb, slot, struct btrfs_dev_extent);
+ read_extent_buffer(eb, uuid,
+ (unsigned long)btrfs_dev_extent_chunk_tree_uuid(dev_extent),
+ BTRFS_UUID_SIZE);
+ uuid_unparse(uuid, uuid_str);
+ printf("\t\tdev extent chunk_tree %llu\n"
+ "\t\tchunk_objectid %llu chunk_offset %llu "
+ "length %llu\n"
+ "\t\tchunk_tree_uuid %s\n",
+ (unsigned long long)btrfs_dev_extent_chunk_tree(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_chunk_objectid(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_chunk_offset(eb, dev_extent),
+ (unsigned long long)btrfs_dev_extent_length(eb, dev_extent),
+ uuid_str);
+}
+
+static void print_qgroup_status(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_status_item *qg_status;
+ char flags_str[256];
+
+ qg_status = btrfs_item_ptr(eb, slot, struct btrfs_qgroup_status_item);
+ memset(flags_str, 0, sizeof(flags_str));
+ qgroup_flags_to_str(btrfs_qgroup_status_flags(eb, qg_status),
+ flags_str);
+ printf("\t\tversion %llu generation %llu flags %s scan %lld\n",
+ (unsigned long long)btrfs_qgroup_status_version(eb, qg_status),
+ (unsigned long long)btrfs_qgroup_status_generation(eb, qg_status),
+ flags_str,
+ (unsigned long long)btrfs_qgroup_status_rescan(eb, qg_status));
+}
+
+static void print_qgroup_info(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_info_item *qg_info;
+
+ qg_info = btrfs_item_ptr(eb, slot, 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(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_referenced(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_referenced_compressed(eb,
+ qg_info),
+ (unsigned long long)btrfs_qgroup_info_exclusive(eb, qg_info),
+ (unsigned long long)btrfs_qgroup_info_exclusive_compressed(eb,
+ qg_info));
+}
+
+static void print_qgroup_limit(struct extent_buffer *eb, int slot)
+{
+ struct btrfs_qgroup_limit_item *qg_limit;
+
+ qg_limit = btrfs_item_ptr(eb, slot, 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(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_max_referenced(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_max_exclusive(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_rsv_referenced(eb, qg_limit),
+ (long long)btrfs_qgroup_limit_rsv_exclusive(eb, qg_limit));
+}
+
+static void print_persistent_item(struct extent_buffer *eb, void *ptr,
+ u32 item_size, u64 objectid, u64 offset)
+{
+ printf("\t\tpersistent item objectid ");
+ print_objectid(stdout, objectid, BTRFS_PERSISTENT_ITEM_KEY);
+ printf(" offset %llu\n", (unsigned long long)offset);
+ switch (objectid) {
+ case BTRFS_DEV_STATS_OBJECTID:
+ print_dev_stats(eb, ptr, item_size);
+ break;
+ default:
+ printf("\t\tunknown persistent item objectid %llu\n", objectid);
+ }
+}
+
+static void print_temporary_item(struct extent_buffer *eb, void *ptr,
+ u64 objectid, u64 offset)
+{
+ printf("\t\ttemporary item objectid ");
+ print_objectid(stdout, objectid, BTRFS_TEMPORARY_ITEM_KEY);
+ printf(" offset %llu\n", (unsigned long long)offset);
+ switch (objectid) {
+ case BTRFS_BALANCE_OBJECTID:
+ print_balance_item(eb, ptr);
+ break;
+ default:
+ printf("\t\tunknown temporary item objectid %llu\n", objectid);
+ }
+}
+
+static void print_extent_csum(struct extent_buffer *eb,
+ struct btrfs_fs_info *fs_info, u32 item_size, u64 start)
+{
+ u32 size;
+
+ size = (item_size / btrfs_super_csum_size(fs_info->super_copy)) *
+ fs_info->sectorsize;
+ printf("\t\trange start %llu end %llu length %u\n",
+ (unsigned long long)start,
+ (unsigned long long)start + size, size);
+}
+
+/* Caller must ensure sizeof(*ret) >= 14 "WRITTEN|RELOC" */
+static void header_flags_to_str(u64 flags, char *ret)
+{
+ int empty = 1;
+
+ if (flags & BTRFS_HEADER_FLAG_WRITTEN) {
+ empty = 0;
+ strcpy(ret, "WRITTEN");
+ }
+ if (flags & BTRFS_HEADER_FLAG_RELOC) {
+ if (!empty)
+ strcat(ret, "|");
+ strcat(ret, "RELOC");
+ }
+}
+
+void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *eb)
+{
+ struct btrfs_item *item;
+ struct btrfs_disk_key disk_key;
+ char flags_str[128];
+ u32 i;
+ u32 nr;
+ u64 flags;
+ u8 backref_rev;
+
+ flags = btrfs_header_flags(eb) & ~BTRFS_BACKREF_REV_MASK;
+ backref_rev = btrfs_header_flags(eb) >> BTRFS_BACKREF_REV_SHIFT;
+ header_flags_to_str(flags, flags_str);
+ nr = btrfs_header_nritems(eb);
+
+ printf("leaf %llu items %d free space %d generation %llu owner %llu\n",
+ (unsigned long long)btrfs_header_bytenr(eb), nr,
+ btrfs_leaf_free_space(root, eb),
+ (unsigned long long)btrfs_header_generation(eb),
+ (unsigned long long)btrfs_header_owner(eb));
+ printf("leaf %llu flags 0x%llx(%s) backref revision %d\n",
+ btrfs_header_bytenr(eb), flags, flags_str, backref_rev);
+ print_uuids(eb);
fflush(stdout);
- for (i = 0 ; i < nr ; i++) {
- item = l->items + i;
- type = btrfs_disk_key_type(&item->key);
- printf("\titem %d key (%Lu %x %Lu) itemoff %d itemsize %d\n",
- i,
- btrfs_disk_key_objectid(&item->key),
- btrfs_disk_key_flags(&item->key),
- btrfs_disk_key_offset(&item->key),
- btrfs_item_offset(item),
- btrfs_item_size(item));
+
+ for (i = 0; i < nr; i++) {
+ u32 item_size;
+ void *ptr;
+ u64 objectid;
+ u32 type;
+ u64 offset;
+
+ item = btrfs_item_nr(i);
+ item_size = btrfs_item_size(eb, item);
+ /* Untyped extraction of slot from btrfs_item_ptr */
+ ptr = btrfs_item_ptr(eb, i, void*);
+
+ btrfs_item_key(eb, &disk_key, i);
+ objectid = btrfs_disk_key_objectid(&disk_key);
+ type = btrfs_disk_key_type(&disk_key);
+ offset = btrfs_disk_key_offset(&disk_key);
+
+ printf("\titem %d ", i);
+ btrfs_print_key(&disk_key);
+ printf(" itemoff %d itemsize %d\n",
+ btrfs_item_offset(eb, item),
+ btrfs_item_size(eb, item));
+
+ if (type == 0 && objectid == BTRFS_FREE_SPACE_OBJECTID)
+ print_free_space_header(eb, i);
+
switch (type) {
case BTRFS_INODE_ITEM_KEY:
- ii = btrfs_item_ptr(l, i, struct btrfs_inode_item);
- printf("\t\tinode generation %Lu size %Lu mode %o\n",
- btrfs_inode_generation(ii),
- btrfs_inode_size(ii),
- btrfs_inode_mode(ii));
+ print_inode_item(eb, ptr);
break;
- case BTRFS_INLINE_DATA_KEY:
- p = btrfs_item_ptr(l, i, char);
- printf("\t\tinline data %.*s\n", 10, p);
+ case BTRFS_INODE_REF_KEY:
+ print_inode_ref_item(eb, item_size, ptr);
break;
- case BTRFS_DIR_ITEM_KEY:
- di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
- printf("\t\tdir oid %Lu flags %u type %u\n",
- btrfs_disk_key_objectid(&di->location),
- btrfs_dir_flags(di),
- btrfs_dir_type(di));
- printf("\t\tname %.*s\n",
- btrfs_dir_name_len(di),(char *)(di + 1));
+ case BTRFS_INODE_EXTREF_KEY:
+ print_inode_extref_item(eb, item_size, ptr);
break;
+ case BTRFS_DIR_ITEM_KEY:
case BTRFS_DIR_INDEX_KEY:
- di = btrfs_item_ptr(l, i, struct btrfs_dir_item);
- printf("\t\tdir index %Lu flags %u type %u\n",
- btrfs_disk_key_objectid(&di->location),
- btrfs_dir_flags(di),
- btrfs_dir_type(di));
- printf("\t\tname %.*s\n",
- btrfs_dir_name_len(di),(char *)(di + 1));
+ case BTRFS_XATTR_ITEM_KEY:
+ print_dir_item(eb, item_size, ptr);
+ break;
+ case BTRFS_DIR_LOG_INDEX_KEY:
+ case BTRFS_DIR_LOG_ITEM_KEY: {
+ struct btrfs_dir_log_item *dlog;
+
+ dlog = btrfs_item_ptr(eb, i, struct btrfs_dir_log_item);
+ printf("\t\tdir log end %Lu\n",
+ (unsigned long long)btrfs_dir_log_end(eb, dlog));
+ break;
+ }
+ case BTRFS_ORPHAN_ITEM_KEY:
+ printf("\t\torphan item\n");
break;
case BTRFS_ROOT_ITEM_KEY:
- ri = btrfs_item_ptr(l, i, struct btrfs_root_item);
- printf("\t\troot data blocknr %Lu dirid %Lu refs %u\n",
- btrfs_root_blocknr(ri),
- btrfs_root_dirid(ri),
- btrfs_root_refs(ri));
+ print_root_item(eb, i);
+ break;
+ case BTRFS_ROOT_REF_KEY:
+ print_root_ref(eb, i, "ref");
+ break;
+ case BTRFS_ROOT_BACKREF_KEY:
+ print_root_ref(eb, i, "backref");
break;
case BTRFS_EXTENT_ITEM_KEY:
- ei = btrfs_item_ptr(l, i, struct btrfs_extent_item);
- printf("\t\textent data refs %u\n",
- btrfs_extent_refs(ei));
+ print_extent_item(eb, i, 0);
+ break;
+ case BTRFS_METADATA_ITEM_KEY:
+ print_extent_item(eb, 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:
+ print_extent_data_ref(eb, i);
+ break;
+ case BTRFS_SHARED_DATA_REF_KEY:
+ print_shared_data_ref(eb, i);
+ break;
+ case BTRFS_EXTENT_REF_V0_KEY:
+#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
+ print_extent_ref_v0(eb, i);
+#else
+ BUG();
+#endif
break;
case BTRFS_CSUM_ITEM_KEY:
- ci = btrfs_item_ptr(l, i,
- struct btrfs_csum_item);
printf("\t\tcsum item\n");
break;
+ case BTRFS_EXTENT_CSUM_KEY:
+ print_extent_csum(eb, root->fs_info, item_size,
+ offset);
+ break;
case BTRFS_EXTENT_DATA_KEY:
- fi = btrfs_item_ptr(l, i,
- struct btrfs_file_extent_item);
- printf("\t\textent data disk block %Lu nr %Lu\n",
- btrfs_file_extent_disk_blocknr(fi),
- btrfs_file_extent_disk_num_blocks(fi));
- printf("\t\textent data offset %Lu nr %Lu\n",
- btrfs_file_extent_offset(fi),
- btrfs_file_extent_num_blocks(fi));
+ print_file_extent_item(eb, item, i, ptr);
+ break;
+ case BTRFS_BLOCK_GROUP_ITEM_KEY:
+ print_block_group_item(eb, ptr);
+ break;
+ case BTRFS_FREE_SPACE_INFO_KEY:
+ print_free_space_info(eb, i);
+ break;
+ case BTRFS_FREE_SPACE_EXTENT_KEY:
+ printf("\t\tfree space extent\n");
+ break;
+ case BTRFS_FREE_SPACE_BITMAP_KEY:
+ printf("\t\tfree space bitmap\n");
+ break;
+ case BTRFS_CHUNK_ITEM_KEY:
+ print_chunk_item(eb, ptr);
break;
case BTRFS_DEV_ITEM_KEY:
- devi = btrfs_item_ptr(l, i, struct btrfs_device_item);
- printf("\t\tdev id %Lu namelen %u name %.*s\n",
- btrfs_device_id(devi),
- btrfs_device_pathlen(devi),
- btrfs_device_pathlen(devi),
- (char *)(devi + 1));
+ print_dev_item(eb, ptr);
break;
- case BTRFS_STRING_ITEM_KEY:
- printf("\t\titem data %.*s\n", btrfs_item_size(item),
- btrfs_leaf_data(l) + btrfs_item_offset(item));
+ case BTRFS_DEV_EXTENT_KEY:
+ print_dev_extent(eb, i);
+ break;
+ case BTRFS_QGROUP_STATUS_KEY:
+ print_qgroup_status(eb, i);
+ break;
+ case BTRFS_QGROUP_RELATION_KEY:
+ break;
+ case BTRFS_QGROUP_INFO_KEY:
+ print_qgroup_info(eb, i);
+ break;
+ case BTRFS_QGROUP_LIMIT_KEY:
+ print_qgroup_limit(eb, i);
+ break;
+ case BTRFS_UUID_KEY_SUBVOL:
+ case BTRFS_UUID_KEY_RECEIVED_SUBVOL:
+ print_uuid_item(eb, btrfs_item_ptr_offset(eb, i),
+ btrfs_item_size_nr(eb, i));
+ break;
+ case BTRFS_STRING_ITEM_KEY: {
+ const char *str = eb->data + btrfs_item_ptr_offset(eb, i);
+
+ printf("\t\titem data %.*s\n", item_size, str);
+ break;
+ }
+ case BTRFS_PERSISTENT_ITEM_KEY:
+ print_persistent_item(eb, ptr, item_size, objectid,
+ offset);
+ break;
+ case BTRFS_TEMPORARY_ITEM_KEY:
+ print_temporary_item(eb, ptr, objectid, offset);
break;
};
fflush(stdout);
}
}
-void btrfs_print_tree(struct btrfs_root *root, struct btrfs_buffer *t)
+
+void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
{
- int i;
+ u32 i;
u32 nr;
- struct btrfs_node *c;
+ struct btrfs_disk_key disk_key;
+ struct btrfs_key key;
+ struct extent_buffer *next;
- if (!t)
+ if (!eb)
return;
- c = &t->node;
- nr = btrfs_header_nritems(&c->header);
- if (btrfs_is_leaf(c)) {
- btrfs_print_leaf(root, (struct btrfs_leaf *)c);
+ nr = btrfs_header_nritems(eb);
+ if (btrfs_is_leaf(eb)) {
+ btrfs_print_leaf(root, eb);
return;
}
- printf("node %Lu level %d ptrs %d free %u generation %Lu\n",
- t->blocknr,
- btrfs_header_level(&c->header), nr,
- (u32)BTRFS_NODEPTRS_PER_BLOCK(root) - nr,
- btrfs_header_generation(&c->header));
+ printf("node %llu level %d items %d free %u generation %llu owner %llu\n",
+ (unsigned long long)eb->start,
+ btrfs_header_level(eb), nr,
+ (u32)BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - nr,
+ (unsigned long long)btrfs_header_generation(eb),
+ (unsigned long long)btrfs_header_owner(eb));
+ print_uuids(eb);
fflush(stdout);
for (i = 0; i < nr; i++) {
- printf("\tkey %d (%Lu %x %Lu) block %Lu\n",
- i,
- c->ptrs[i].key.objectid,
- c->ptrs[i].key.flags,
- c->ptrs[i].key.offset,
- btrfs_node_blockptr(c, i));
+ u64 blocknr = btrfs_node_blockptr(eb, i);
+ btrfs_node_key(eb, &disk_key, i);
+ btrfs_disk_key_to_cpu(&key, &disk_key);
+ printf("\t");
+ btrfs_print_key(&disk_key);
+ printf(" block %llu (%llu) gen %llu\n",
+ (unsigned long long)blocknr,
+ (unsigned long long)blocknr / root->fs_info->nodesize,
+ (unsigned long long)btrfs_node_ptr_generation(eb, i));
fflush(stdout);
}
+ if (!follow)
+ return;
+
for (i = 0; i < nr; i++) {
- struct btrfs_buffer *next_buf = read_tree_block(root,
- btrfs_node_blockptr(c, i));
- struct btrfs_node *next = &next_buf->node;
- if (btrfs_is_leaf(next) &&
- btrfs_header_level(&c->header) != 1)
- BUG();
- if (btrfs_header_level(&next->header) !=
- btrfs_header_level(&c->header) - 1)
- BUG();
- btrfs_print_tree(root, next_buf);
- btrfs_block_release(root, next_buf);
+ next = read_tree_block(root->fs_info,
+ btrfs_node_blockptr(eb, i),
+ btrfs_node_ptr_generation(eb, i));
+ if (!extent_buffer_uptodate(next)) {
+ fprintf(stderr, "failed to read %llu in tree %llu\n",
+ (unsigned long long)btrfs_node_blockptr(eb, i),
+ (unsigned long long)btrfs_header_owner(eb));
+ continue;
+ }
+ if (btrfs_is_leaf(next) && btrfs_header_level(eb) != 1) {
+ warning(
+ "eb corrupted: item %d eb level %d next level %d, skipping the rest",
+ i, btrfs_header_level(next),
+ btrfs_header_level(eb));
+ goto out;
+ }
+ if (btrfs_header_level(next) != btrfs_header_level(eb) - 1) {
+ warning(
+ "eb corrupted: item %d eb level %d next level %d, skipping the rest",
+ i, btrfs_header_level(next),
+ btrfs_header_level(eb));
+ goto out;
+ }
+ btrfs_print_tree(root, next, 1);
+ free_extent_buffer(next);
}
-}
+ return;
+
+out:
+ free_extent_buffer(next);
+}
projects / platform / upstream / btrfs-progs.git / blobdiff