mirror of
https://git.code.sf.net/p/ntfs-3g/ntfs-3g.git
synced 2024-11-23 18:14:24 +08:00
3cc22ba329
The declarations related to the log file structure are now grouped in logfile.h, those specific to the recovery process are kept in ntfsrecover.h
154 lines
4.6 KiB
C
154 lines
4.6 KiB
C
/*
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* Declarations for processing log data
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*
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* Copyright (c) 2000-2005 Anton Altaparmakov
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* Copyright (c) 2014-2016 Jean-Pierre Andre
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*/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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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
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* GNU 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 License
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* along with this program (in the main directory of the NTFS-3G
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* distribution in the file COPYING); if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#define getle16(p,x) le16_to_cpu(*(const le16*)((const char*)(p) + (x)))
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#define getle32(p,x) le32_to_cpu(*(const le32*)((const char*)(p) + (x)))
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#define getle64(p,x) le64_to_cpu(*(const le64*)((const char*)(p) + (x)))
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#define feedle16(p,x) (*(const le16*)((const char*)(p) + (x)))
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#define feedle32(p,x) (*(const le32*)((const char*)(p) + (x)))
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#define feedle64(p,x) (*(const le64*)((const char*)(p) + (x)))
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enum ACTIONS {
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Noop, /* 0 */
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CompensationlogRecord, /* 1 */
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InitializeFileRecordSegment, /* 2 */
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DeallocateFileRecordSegment, /* 3 */
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WriteEndofFileRecordSegment, /* 4 */
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CreateAttribute, /* 5 */
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DeleteAttribute, /* 6 */
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UpdateResidentValue, /* 7 */
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UpdateNonResidentValue, /* 8 */
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UpdateMappingPairs, /* 9 */
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DeleteDirtyClusters, /* 10 */
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SetNewAttributeSizes, /* 11 */
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AddIndexEntryRoot, /* 12 */
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DeleteIndexEntryRoot, /* 13 */
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AddIndexEntryAllocation, /* 14 */
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DeleteIndexEntryAllocation, /* 15 */
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WriteEndOfIndexBuffer, /* 16 */
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SetIndexEntryVcnRoot, /* 17 */
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SetIndexEntryVcnAllocation, /* 18 */
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UpdateFileNameRoot, /* 19 */
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UpdateFileNameAllocation, /* 20 */
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SetBitsInNonResidentBitMap, /* 21 */
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ClearBitsInNonResidentBitMap, /* 22 */
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HotFix, /* 23 */
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EndTopLevelAction, /* 24 */
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PrepareTransaction, /* 25 */
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CommitTransaction, /* 26 */
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ForgetTransaction, /* 27 */
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OpenNonResidentAttribute, /* 28 */
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OpenAttributeTableDump, /* 29 */
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AttributeNamesDump, /* 30 */
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DirtyPageTableDump, /* 31 */
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TransactionTableDump, /* 32 */
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UpdateRecordDataRoot, /* 33 */
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UpdateRecordDataAllocation, /* 34 */
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Win10Action35, /* 35 */
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Win10Action36, /* 36 */
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Win10Action37, /* 37 */
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LastAction /* 38 */
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} ;
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struct BUFFER {
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unsigned int num;
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unsigned int size;
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unsigned int headsz;
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BOOL safe;
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union {
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RESTART_PAGE_HEADER restart;
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RECORD_PAGE_HEADER record;
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char data[1];
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} block; /* variable length, keep at the end */
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} ;
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struct ACTION_RECORD {
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struct ACTION_RECORD *next;
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struct ACTION_RECORD *prev;
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int num;
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unsigned int flags;
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LOG_RECORD record; /* variable length, keep at the end */
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} ;
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enum { /* Flag values for ACTION_RECORD */
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ACTION_TO_REDO = 1 /* Committed, possibly not synced */
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} ;
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struct ATTR {
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u64 inode;
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u64 lsn;
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le32 type;
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u16 key;
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u16 namelen;
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le16 name[1];
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} ;
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extern u32 clustersz;
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extern int clusterbits;
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extern u32 blocksz;
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extern int blockbits;
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extern u16 bytespersect;
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extern u64 mftlcn;
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extern u32 mftrecsz;
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extern int mftrecbits;
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extern u32 mftcnt; /* number of entries */
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extern BOOL optc;
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extern BOOL optn;
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extern int opts;
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extern int optv;
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extern unsigned int redocount;
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extern unsigned int undocount;
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extern ntfs_inode *log_ni;
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extern ntfs_attr *log_na;
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extern u64 logfilelcn;
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extern u32 logfilesz; /* bytes */
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extern u64 redos_met;
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extern u64 committed_lsn;
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extern u64 synced_lsn;
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extern u64 latest_lsn;
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extern u64 restart_lsn;
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extern RESTART_AREA restart;
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extern LOG_CLIENT_RECORD client;
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const char *actionname(int op);
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const char *mftattrname(ATTR_TYPES attr);
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void showname(const char *prefix, const char *name, int cnt);
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int fixnamelen(const char *name, int len);
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BOOL within_lcn_range(const LOG_RECORD *logr);
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struct ATTR *getattrentry(unsigned int key, unsigned int lth);
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void copy_attribute(struct ATTR *pa, const char *buf, int length);
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u32 get_undo_offset(const LOG_RECORD *logr);
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u32 get_redo_offset(const LOG_RECORD *logr);
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u32 get_extra_offset(const LOG_RECORD *logr);
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BOOL exception(int num);
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struct STORE;
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extern int play_undos(ntfs_volume *vol, const struct ACTION_RECORD *firstundo);
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extern int play_redos(ntfs_volume *vol, const struct ACTION_RECORD *firstredo);
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extern void show_redos(void);
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extern void freeclusterentry(struct STORE*);
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void hexdump(const char *buf, unsigned int lth);
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