1349 lines
41 KiB
C
1349 lines
41 KiB
C
/*
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* Copyright (C) 2007 Oracle. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <uuid/uuid.h>
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#include "kerncompat.h"
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#include "radix-tree.h"
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#include "ctree.h"
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#include "disk-io.h"
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#include "print-tree.h"
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#include "utils.h"
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static void print_dir_item_type(struct extent_buffer *eb,
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struct btrfs_dir_item *di)
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{
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u8 type = btrfs_dir_type(eb, di);
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static const char* dir_item_str[] = {
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[BTRFS_FT_REG_FILE] = "FILE",
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[BTRFS_FT_DIR] = "DIR",
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[BTRFS_FT_CHRDEV] = "CHRDEV",
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[BTRFS_FT_BLKDEV] = "BLKDEV",
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[BTRFS_FT_FIFO] = "FIFO",
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[BTRFS_FT_SOCK] = "SOCK",
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[BTRFS_FT_SYMLINK] = "SYMLINK",
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[BTRFS_FT_XATTR] = "XATTR"
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};
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if (type < ARRAY_SIZE(dir_item_str) && dir_item_str[type])
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printf("%s", dir_item_str[type]);
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else
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printf("DIR_ITEM.%u", type);
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}
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static void print_dir_item(struct extent_buffer *eb, u32 size,
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struct btrfs_dir_item *di)
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{
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u32 cur = 0;
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u32 len;
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u32 name_len;
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u32 data_len;
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char namebuf[BTRFS_NAME_LEN];
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struct btrfs_disk_key location;
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while (cur < size) {
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btrfs_dir_item_key(eb, di, &location);
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printf("\t\tlocation ");
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btrfs_print_key(&location);
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printf(" type ");
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print_dir_item_type(eb, di);
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printf("\n");
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name_len = btrfs_dir_name_len(eb, di);
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data_len = btrfs_dir_data_len(eb, di);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(di + 1), len);
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printf("\t\ttransid %llu data_len %u name_len %u\n",
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btrfs_dir_transid(eb, di),
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data_len, name_len);
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printf("\t\tname: %.*s\n", len, namebuf);
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if (data_len) {
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len = (data_len <= sizeof(namebuf))? data_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf,
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(unsigned long)(di + 1) + name_len, len);
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printf("\t\tdata %.*s\n", len, namebuf);
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}
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len = sizeof(*di) + name_len + data_len;
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di = (struct btrfs_dir_item *)((char *)di + len);
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cur += len;
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}
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}
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static void print_inode_extref_item(struct extent_buffer *eb, u32 size,
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struct btrfs_inode_extref *extref)
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{
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u32 cur = 0;
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u32 len;
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u32 name_len = 0;
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u64 index = 0;
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u64 parent_objid;
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char namebuf[BTRFS_NAME_LEN];
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while (cur < size) {
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index = btrfs_inode_extref_index(eb, extref);
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name_len = btrfs_inode_extref_name_len(eb, extref);
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parent_objid = btrfs_inode_extref_parent(eb, extref);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(extref->name), len);
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printf("\t\tinode extref index %llu parent %llu namelen %u "
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"name: %.*s\n",
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(unsigned long long)index,
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(unsigned long long)parent_objid,
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name_len, len, namebuf);
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len = sizeof(*extref) + name_len;
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extref = (struct btrfs_inode_extref *)((char *)extref + len);
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cur += len;
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}
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}
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static void print_inode_ref_item(struct extent_buffer *eb, u32 size,
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struct btrfs_inode_ref *ref)
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{
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u32 cur = 0;
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u32 len;
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u32 name_len;
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u64 index;
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char namebuf[BTRFS_NAME_LEN];
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while (cur < size) {
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name_len = btrfs_inode_ref_name_len(eb, ref);
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index = btrfs_inode_ref_index(eb, ref);
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len = (name_len <= sizeof(namebuf))? name_len: sizeof(namebuf);
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read_extent_buffer(eb, namebuf, (unsigned long)(ref + 1), len);
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printf("\t\tinode ref index %llu namelen %u name: %.*s\n",
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(unsigned long long)index, name_len, len, namebuf);
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len = sizeof(*ref) + name_len;
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ref = (struct btrfs_inode_ref *)((char *)ref + len);
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cur += len;
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}
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}
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/* Caller should ensure sizeof(*ret)>=21 "DATA|METADATA|RAID10" */
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static void bg_flags_to_str(u64 flags, char *ret)
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{
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int empty = 1;
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if (flags & BTRFS_BLOCK_GROUP_DATA) {
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empty = 0;
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strcpy(ret, "DATA");
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}
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if (flags & BTRFS_BLOCK_GROUP_METADATA) {
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if (!empty)
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strcat(ret, "|");
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strcat(ret, "METADATA");
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}
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if (flags & BTRFS_BLOCK_GROUP_SYSTEM) {
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if (!empty)
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strcat(ret, "|");
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strcat(ret, "SYSTEM");
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}
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switch (flags & BTRFS_BLOCK_GROUP_PROFILE_MASK) {
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case BTRFS_BLOCK_GROUP_RAID0:
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strcat(ret, "|RAID0");
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break;
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case BTRFS_BLOCK_GROUP_RAID1:
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strcat(ret, "|RAID1");
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break;
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case BTRFS_BLOCK_GROUP_DUP:
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strcat(ret, "|DUP");
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break;
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case BTRFS_BLOCK_GROUP_RAID10:
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strcat(ret, "|RAID10");
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break;
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case BTRFS_BLOCK_GROUP_RAID5:
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strcat(ret, "|RAID5");
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break;
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case BTRFS_BLOCK_GROUP_RAID6:
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strcat(ret, "|RAID6");
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break;
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default:
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break;
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}
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}
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/* Caller should ensure sizeof(*ret)>= 26 "OFF|SCANNING|INCONSISTENT" */
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static void qgroup_flags_to_str(u64 flags, char *ret)
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{
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if (flags & BTRFS_QGROUP_STATUS_FLAG_ON)
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strcpy(ret, "ON");
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else
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strcpy(ret, "OFF");
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if (flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN)
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strcat(ret, "|SCANNING");
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if (flags & BTRFS_QGROUP_STATUS_FLAG_INCONSISTENT)
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strcat(ret, "|INCONSISTENT");
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}
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void print_chunk(struct extent_buffer *eb, struct btrfs_chunk *chunk)
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{
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u16 num_stripes = btrfs_chunk_num_stripes(eb, chunk);
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int i;
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u32 chunk_item_size = btrfs_chunk_item_size(num_stripes);
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char chunk_flags_str[32] = {0};
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if ((unsigned long)chunk + chunk_item_size > eb->len) {
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printf("\t\tchunk item invalid\n");
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return;
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}
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bg_flags_to_str(btrfs_chunk_type(eb, chunk), chunk_flags_str);
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printf("\t\tlength %llu owner %llu stripe_len %llu type %s\n",
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(unsigned long long)btrfs_chunk_length(eb, chunk),
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(unsigned long long)btrfs_chunk_owner(eb, chunk),
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(unsigned long long)btrfs_chunk_stripe_len(eb, chunk),
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chunk_flags_str);
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printf("\t\tio_align %u io_width %u sector_size %u\n",
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btrfs_chunk_io_align(eb, chunk),
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btrfs_chunk_io_width(eb, chunk),
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btrfs_chunk_sector_size(eb, chunk));
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printf("\t\tnum_stripes %hu sub_stripes %hu\n", num_stripes,
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btrfs_chunk_sub_stripes(eb, chunk));
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for (i = 0 ; i < num_stripes ; i++) {
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unsigned char dev_uuid[BTRFS_UUID_SIZE];
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char str_dev_uuid[BTRFS_UUID_UNPARSED_SIZE];
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u64 uuid_offset;
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u64 stripe_offset;
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uuid_offset = (unsigned long)btrfs_stripe_dev_uuid_nr(chunk, i);
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stripe_offset = (unsigned long)btrfs_stripe_nr(chunk, i);
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if (uuid_offset < stripe_offset ||
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(uuid_offset + BTRFS_UUID_SIZE) >
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(stripe_offset + sizeof(struct btrfs_stripe))) {
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printf("\t\t\tstripe %d invalid\n", i);
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break;
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}
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read_extent_buffer(eb, dev_uuid,
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uuid_offset,
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BTRFS_UUID_SIZE);
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uuid_unparse(dev_uuid, str_dev_uuid);
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printf("\t\t\tstripe %d devid %llu offset %llu\n", i,
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(unsigned long long)btrfs_stripe_devid_nr(eb, chunk, i),
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(unsigned long long)btrfs_stripe_offset_nr(eb, chunk, i));
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printf("\t\t\tdev_uuid %s\n", str_dev_uuid);
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}
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}
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static void print_dev_item(struct extent_buffer *eb,
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struct btrfs_dev_item *dev_item)
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{
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char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
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char fsid_str[BTRFS_UUID_UNPARSED_SIZE];
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u8 uuid[BTRFS_UUID_SIZE];
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u8 fsid[BTRFS_UUID_SIZE];
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read_extent_buffer(eb, uuid,
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(unsigned long)btrfs_device_uuid(dev_item),
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BTRFS_UUID_SIZE);
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uuid_unparse(uuid, uuid_str);
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read_extent_buffer(eb, fsid,
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(unsigned long)btrfs_device_fsid(dev_item),
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BTRFS_UUID_SIZE);
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uuid_unparse(fsid, fsid_str);
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printf("\t\tdevid %llu total_bytes %llu bytes_used %Lu\n"
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"\t\tio_align %u io_width %u sector_size %u type %llu\n"
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"\t\tgeneration %llu start_offset %llu dev_group %u\n"
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"\t\tseek_speed %hhu bandwidth %hhu\n"
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"\t\tuuid %s\n"
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"\t\tfsid %s\n",
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(unsigned long long)btrfs_device_id(eb, dev_item),
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(unsigned long long)btrfs_device_total_bytes(eb, dev_item),
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(unsigned long long)btrfs_device_bytes_used(eb, dev_item),
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btrfs_device_io_align(eb, dev_item),
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btrfs_device_io_width(eb, dev_item),
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btrfs_device_sector_size(eb, dev_item),
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(unsigned long long)btrfs_device_type(eb, dev_item),
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(unsigned long long)btrfs_device_generation(eb, dev_item),
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(unsigned long long)btrfs_device_start_offset(eb, dev_item),
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btrfs_device_group(eb, dev_item),
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btrfs_device_seek_speed(eb, dev_item),
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btrfs_device_bandwidth(eb, dev_item),
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uuid_str, fsid_str);
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}
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static void print_uuids(struct extent_buffer *eb)
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{
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char fs_uuid[BTRFS_UUID_UNPARSED_SIZE];
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char chunk_uuid[BTRFS_UUID_UNPARSED_SIZE];
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u8 disk_uuid[BTRFS_UUID_SIZE];
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read_extent_buffer(eb, disk_uuid, btrfs_header_fsid(),
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BTRFS_FSID_SIZE);
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fs_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
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uuid_unparse(disk_uuid, fs_uuid);
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read_extent_buffer(eb, disk_uuid,
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btrfs_header_chunk_tree_uuid(eb),
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BTRFS_UUID_SIZE);
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chunk_uuid[BTRFS_UUID_UNPARSED_SIZE - 1] = '\0';
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uuid_unparse(disk_uuid, chunk_uuid);
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printf("fs uuid %s\nchunk uuid %s\n", fs_uuid, chunk_uuid);
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}
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static void compress_type_to_str(u8 compress_type, char *ret)
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{
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switch (compress_type) {
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case BTRFS_COMPRESS_NONE:
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strcpy(ret, "none");
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break;
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case BTRFS_COMPRESS_ZLIB:
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strcpy(ret, "zlib");
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break;
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case BTRFS_COMPRESS_LZO:
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strcpy(ret, "lzo");
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break;
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default:
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sprintf(ret, "UNKNOWN.%d", compress_type);
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}
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}
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static const char* file_extent_type_to_str(u8 type)
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{
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switch (type) {
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case BTRFS_FILE_EXTENT_INLINE: return "inline";
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case BTRFS_FILE_EXTENT_PREALLOC: return "prealloc";
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case BTRFS_FILE_EXTENT_REG: return "regular";
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default: return "unknown";
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}
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}
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static void print_file_extent_item(struct extent_buffer *eb,
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struct btrfs_item *item,
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int slot,
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struct btrfs_file_extent_item *fi)
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{
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unsigned char extent_type = btrfs_file_extent_type(eb, fi);
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char compress_str[16];
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compress_type_to_str(btrfs_file_extent_compression(eb, fi),
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compress_str);
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printf("\t\tgeneration %llu type %hhu (%s)\n",
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btrfs_file_extent_generation(eb, fi),
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extent_type, file_extent_type_to_str(extent_type));
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if (extent_type == BTRFS_FILE_EXTENT_INLINE) {
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printf("\t\tinline extent data size %u ram_bytes %u compression %hhu (%s)\n",
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btrfs_file_extent_inline_item_len(eb, item),
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btrfs_file_extent_inline_len(eb, slot, fi),
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btrfs_file_extent_compression(eb, fi),
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compress_str);
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return;
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}
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if (extent_type == BTRFS_FILE_EXTENT_PREALLOC) {
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printf("\t\tprealloc data disk byte %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
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(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
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printf("\t\tprealloc data offset %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_offset(eb, fi),
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(unsigned long long)btrfs_file_extent_num_bytes(eb, fi));
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return;
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}
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printf("\t\textent data disk byte %llu nr %llu\n",
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(unsigned long long)btrfs_file_extent_disk_bytenr(eb, fi),
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(unsigned long long)btrfs_file_extent_disk_num_bytes(eb, fi));
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printf("\t\textent data offset %llu nr %llu ram %llu\n",
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(unsigned long long)btrfs_file_extent_offset(eb, fi),
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(unsigned long long)btrfs_file_extent_num_bytes(eb, fi),
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(unsigned long long)btrfs_file_extent_ram_bytes(eb, fi));
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printf("\t\textent compression %hhu (%s)\n",
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btrfs_file_extent_compression(eb, fi),
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compress_str);
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}
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/* Caller should ensure sizeof(*ret) >= 16("DATA|TREE_BLOCK") */
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static void extent_flags_to_str(u64 flags, char *ret)
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{
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int empty = 1;
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if (flags & BTRFS_EXTENT_FLAG_DATA) {
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empty = 0;
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strcpy(ret, "DATA");
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}
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if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
|
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if (!empty) {
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empty = 0;
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strcat(ret, "|");
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}
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strcat(ret, "TREE_BLOCK");
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}
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if (flags & BTRFS_BLOCK_FLAG_FULL_BACKREF) {
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strcat(ret, "|");
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strcat(ret, "FULL_BACKREF");
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}
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}
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|
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void print_extent_item(struct extent_buffer *eb, int slot, int metadata)
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{
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struct btrfs_extent_item *ei;
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struct btrfs_extent_inline_ref *iref;
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struct btrfs_extent_data_ref *dref;
|
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struct btrfs_shared_data_ref *sref;
|
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struct btrfs_disk_key key;
|
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unsigned long end;
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unsigned long ptr;
|
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int type;
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u32 item_size = btrfs_item_size_nr(eb, slot);
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u64 flags;
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u64 offset;
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char flags_str[32] = {0};
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|
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if (item_size < sizeof(*ei)) {
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#ifdef BTRFS_COMPAT_EXTENT_TREE_V0
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struct btrfs_extent_item_v0 *ei0;
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BUG_ON(item_size != sizeof(*ei0));
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ei0 = btrfs_item_ptr(eb, slot, struct btrfs_extent_item_v0);
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printf("\t\textent refs %u\n",
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btrfs_extent_refs_v0(eb, ei0));
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return;
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#else
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BUG();
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#endif
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}
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ei = btrfs_item_ptr(eb, slot, struct btrfs_extent_item);
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flags = btrfs_extent_flags(eb, ei);
|
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extent_flags_to_str(flags, flags_str);
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|
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printf("\t\textent refs %llu gen %llu flags %s\n",
|
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(unsigned long long)btrfs_extent_refs(eb, ei),
|
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(unsigned long long)btrfs_extent_generation(eb, ei),
|
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flags_str);
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|
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if (flags & BTRFS_EXTENT_FLAG_TREE_BLOCK && !metadata) {
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struct btrfs_tree_block_info *info;
|
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info = (struct btrfs_tree_block_info *)(ei + 1);
|
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btrfs_tree_block_key(eb, info, &key);
|
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printf("\t\ttree block ");
|
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btrfs_print_key(&key);
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printf(" level %d\n", btrfs_tree_block_level(eb, info));
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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_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};
|
|
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));
|
|
}
|
|
}
|
|
|
|
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;
|
|
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_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_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 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]));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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++) {
|
|
u32 item_size;
|
|
void *ptr;
|
|
u64 objectid;
|
|
u32 type;
|
|
u64 offset;
|
|
char flags_str[256];
|
|
char uuid_str[BTRFS_UUID_UNPARSED_SIZE];
|
|
u8 uuid[BTRFS_UUID_SIZE];
|
|
|
|
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:
|
|
print_inode_item(eb, ptr);
|
|
break;
|
|
case BTRFS_INODE_REF_KEY:
|
|
print_inode_ref_item(eb, item_size, ptr);
|
|
break;
|
|
case BTRFS_INODE_EXTREF_KEY:
|
|
print_inode_extref_item(eb, item_size, ptr);
|
|
break;
|
|
case BTRFS_DIR_ITEM_KEY:
|
|
case BTRFS_DIR_INDEX_KEY:
|
|
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:
|
|
print_root(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:
|
|
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: {
|
|
struct btrfs_extent_data_ref *dref;
|
|
|
|
dref = btrfs_item_ptr(eb, 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(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: {
|
|
struct btrfs_shared_data_ref *sref;
|
|
sref = btrfs_item_ptr(eb, i, struct btrfs_shared_data_ref);
|
|
printf("\t\tshared data backref count %u\n",
|
|
btrfs_shared_data_ref_count(eb, sref));
|
|
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:
|
|
printf("\t\tcsum item\n");
|
|
break;
|
|
case BTRFS_EXTENT_CSUM_KEY:
|
|
printf("\t\textent csum item\n");
|
|
break;
|
|
case BTRFS_EXTENT_DATA_KEY:
|
|
print_file_extent_item(eb, item, i, ptr);
|
|
break;
|
|
case BTRFS_BLOCK_GROUP_ITEM_KEY: {
|
|
struct btrfs_block_group_item bg_item;
|
|
|
|
read_extent_buffer(eb, &bg_item, (unsigned long)ptr,
|
|
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_FREE_SPACE_INFO_KEY: {
|
|
struct btrfs_free_space_info *free_info;
|
|
|
|
free_info = btrfs_item_ptr(eb, i, 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));
|
|
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(eb, ptr);
|
|
break;
|
|
case BTRFS_DEV_ITEM_KEY:
|
|
print_dev_item(eb, ptr);
|
|
break;
|
|
case BTRFS_DEV_EXTENT_KEY: {
|
|
struct btrfs_dev_extent *dev_extent;
|
|
|
|
dev_extent = btrfs_item_ptr(eb, i,
|
|
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);
|
|
break;
|
|
}
|
|
case BTRFS_QGROUP_STATUS_KEY: {
|
|
struct btrfs_qgroup_status_item *qg_status;
|
|
|
|
qg_status = btrfs_item_ptr(eb, i,
|
|
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));
|
|
break;
|
|
}
|
|
case BTRFS_QGROUP_RELATION_KEY:
|
|
break;
|
|
case BTRFS_QGROUP_INFO_KEY: {
|
|
struct btrfs_qgroup_info_item *qg_info;
|
|
|
|
qg_info = btrfs_item_ptr(eb, 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(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));
|
|
break;
|
|
}
|
|
case BTRFS_QGROUP_LIMIT_KEY: {
|
|
struct btrfs_qgroup_limit_item *qg_limit;
|
|
|
|
qg_limit = btrfs_item_ptr(eb, 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(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));
|
|
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:
|
|
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);
|
|
}
|
|
break;
|
|
case BTRFS_TEMPORARY_ITEM_KEY:
|
|
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);
|
|
}
|
|
break;
|
|
};
|
|
fflush(stdout);
|
|
}
|
|
}
|
|
|
|
void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *eb, int follow)
|
|
{
|
|
u32 i;
|
|
u32 nr;
|
|
u32 size;
|
|
struct btrfs_disk_key disk_key;
|
|
struct btrfs_key key;
|
|
struct extent_buffer *next;
|
|
|
|
if (!eb)
|
|
return;
|
|
nr = btrfs_header_nritems(eb);
|
|
if (btrfs_is_leaf(eb)) {
|
|
btrfs_print_leaf(root, eb);
|
|
return;
|
|
}
|
|
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) - nr,
|
|
(unsigned long long)btrfs_header_generation(eb),
|
|
(unsigned long long)btrfs_header_owner(eb));
|
|
print_uuids(eb);
|
|
fflush(stdout);
|
|
size = root->fs_info->nodesize;
|
|
for (i = 0; i < nr; 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 / size,
|
|
(unsigned long long)btrfs_node_ptr_generation(eb, i));
|
|
fflush(stdout);
|
|
}
|
|
if (!follow)
|
|
return;
|
|
|
|
for (i = 0; i < nr; i++) {
|
|
next = read_tree_block(root->fs_info,
|
|
btrfs_node_blockptr(eb, i), size,
|
|
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);
|
|
}
|