/* * Copyright 2000-2004 by Hans Reiser, licensing governed by * reiserfsprogs/README */ #define _GNU_SOURCE #ifndef HAVE_CONFIG_H # include "config.h" #endif #include "io.h" #include "misc.h" #include "reiserfs_lib.h" #include "../version.h" #include #include extern reiserfs_filsys_t fs; /* * modes */ #define DO_DUMP 1 /* not a real dump, just printing to stdout contents of tree nodes */ #define DO_CORRUPT_ONE 2 /* used to make filesystem corruption and then test fsck */ #define DO_CORRUPT_FILE 3 /* used to make filesystem corruption and then test fsck, the list of corruption is set on the file */ #define DO_RANDOM_CORRUPTION 4 #define DO_SCAN 5 #define DO_RECOVER 6 #define DO_TEST 7 #define DO_PACK 8 /* -p extract meta data of reiserfs filesystem */ #define DO_UNPACK 9 /* -u create the fs by the givem metadata */ #define DO_STAT 10 #define DO_SCAN_FOR_NAME 11 /* -n */ #define DO_LOOK_FOR_NAME 12 /* -N */ #define DO_SCAN_JOURNAL 13 /* -J */ #define DO_EXTRACT_BADBLOCKS 14 #define DO_FILE_MAP 15 #define DO_ZERO 16 #define DO_NOTHING 17 /*first bits are in reiserfs_fs.b*/ #define PRINT_JOURNAL 0x10 #define PRINT_JOURNAL_HEADER 0x20 #define PRINT_BITMAP 0x40 #define PRINT_OBJECTID_MAP 0x80 #define BE_QUIET 0x100 #define BE_VERBOSE 0x200 /* these moved to reiserfs_fs.h */ //#define PRINT_TREE_DETAILS //#define PRINT_DETAILS //#define PRINT_ITEM_DETAILS //#define PRINT_DIRECT_ITEMS // the leaf is stored in compact form: // start magic number // block number __u32 // item number __u16 // struct packed_item // .. // end magic number /* we store hash code in high byte of 16 bits */ #define LEAF_START_MAGIC 0xa6 #define LEAF_END_MAGIC 0x5a #define FULL_BLOCK_START_MAGIC 0xb6 #define FULL_BLOCK_END_MAGIC 0x6b #define UNFORMATTED_BITMAP_START_MAGIC 0xc7 #define UNFORMATTED_BITMAP_END_MAGIC 0x7c #define END_MAGIC 0x8d #define INTERNAL_START_MAGIC #define INTERNAL_START_MAGIC #define SEPARATED_JOURNAL_START_MAGIC 0xf8 #define SEPARATED_JOURNAL_END_MAGIC 0x8f #define ITEM_START_MAGIC 0x476576 #define ITEM_END_MAGIC 0x2906504 #define MAP_MAGIC 0xe9 #define MAP_END_MAGIC 0x9e /* 12 bits of mask are used to define */ #define NEW_FORMAT 0x01 /* 1. 0 here means - old format, 1 - new format */ #define DIR_ID 0x02 /* 2. dir_id is stored */ #define OBJECT_ID 0x04 /* 3. objectid is stored */ #define OFFSET_BITS_32 0x08 /* 4. offset is stored as 32 bit */ #define OFFSET_BITS_64 0x10 /* 5. offset is stored as 64 bit */ #define IH_ENTRY_COUNT 0x20 /* 6. ih_free_space/ih_entry_count is stored */ #define IH_FREE_SPACE 0x20 #define IH_FORMAT 0x40 /* 7. ih_format is stored */ #define WITH_SD_FIRST_DIRECT_BYTE 0x80 /* 8. for old stat data first_direct_byte is stored */ #define NLINK_BITS_32 0x0100 /* 9. nlinks stored in 32 bits */ #define SIZE_BITS_64 0x0200 /* 10. size has to be stored in 64 bit */ #define WHOLE_INDIRECT 0x0400 /* 11. indirect item is stored with compression */ #define SAFE_LINK 0x0800 /* 11. indirect item is stored with compression */ #define TYPE_MASK 0x3 /* two lowest bits are used to store item type */ //#define MASK_MASK 0xffffc /* what is packed: dirid, objectid, etc */ #define ITEM_LEN_MASK 0xfff00000 /* contents of ih_item_len of item_head */ struct packed_item { __u32 type_2_mask_18_len_12; }; /* defined as inlines in both pack.c and unpack.c */ inline void set_pi_type(struct packed_item *pi, __u32 val); inline __u32 get_pi_type(const struct packed_item *pi); inline void set_pi_mask(struct packed_item *pi, __u32 val); inline __u32 get_pi_mask(const struct packed_item *pi); inline void set_pi_item_len(struct packed_item *pi, __u32 val); inline __u32 get_pi_item_len(const struct packed_item *pi); #define HAS_DIR_ID 0x01 #define HAS_GEN_COUNTER 0x02 #define HAS_STATE 0x04 #define YURA 0x08 #define TEA 0x10 #define R5 0x20 struct packed_dir_entry { __u8 mask; __u16 entrylen; }; /* packed_dir_entry.mask is *always* endian safe, since it's 8 bit */ #define get_pe_entrylen(pe) (le16_to_cpu((pe)->entrylen)) #define set_pe_entrylen(pe,v) ((pe)->entrylen = cpu_to_le16(v)) #define fread8(pv) fread (pv, sizeof (__u8), 1, stdin) #define fread_le16(pv)\ {\ __le16 tmp; \ fread16(&tmp); \ *pv = le16_to_cpu(tmp); \ } #define fread_le32(pv)\ {\ __le32 tmp; \ fread32(&tmp); \ *pv = le32_to_cpu(tmp); \ } #define fread_le64(pv)\ {\ __le64 tmp; \ fread64(&tmp); \ *pv = le64_to_cpu(tmp); \ } #define fread8(pv) fread (pv, sizeof (__u8), 1, stdin) #define fread16(pv) fread (pv, sizeof (__u16), 1, stdin) #define fread32(pv) fread (pv, sizeof (__u32), 1, stdin) #define fread64(pv) fread (pv, sizeof (__u64), 1, stdin) #define fwrite_le16(pv)\ {\ __le16 tmp = cpu_to_le16(*(pv));\ fwrite16(&tmp);\ } #define fwrite_le32(pv)\ {\ __le32 tmp = cpu_to_le32(*(pv));\ fwrite32(&tmp);\ } #define fwrite_le64(pv)\ {\ __le64 tmp = cpu_to_le64(*(pv));\ fwrite64(&tmp);\ } #define fwrite8(pv) {\ if (fwrite (pv, sizeof (__u8), 1, stdout) != 1)\ reiserfs_panic ("fwrite8 failed: %m");\ sent_bytes ++;\ } #define fwrite16(pv) {\ if (fwrite (pv, sizeof (__u16), 1, stdout) != 1)\ reiserfs_panic ("fwrite16 failed: %m");\ sent_bytes += 2;\ } #define fwrite32(pv) {\ if (fwrite (pv, sizeof (__u32), 1, stdout) != 1)\ reiserfs_panic ("fwrite32 failed: %m");\ sent_bytes += 4;\ } #define fwrite64(pv) {\ if (fwrite (pv, sizeof (__u64), 1, stdout) != 1)\ reiserfs_panic ("fwrite64 failed: %m");\ sent_bytes += 8;\ } struct debugreiserfs_data { int mode; /* DO_DUMP | DO_PACK | DO_CORRUPT_ONE... */ #define USED_BLOCKS 1 #define EXTERN_BITMAP 2 #define ALL_BLOCKS 3 #define UNUSED_BLOCKS 4 int scan_area; /* for -p, -s and -n */ char *input_bitmap; /* when ->scan_area is set to EXTERN_BITMAP */ reiserfs_bitmap_t *bitmap; /* bitmap is read from ->input_bitmap */ unsigned long block; /* set by -B. this is a must for -C, option for -p and -d */ char *pattern; /* for -n */ char *device_name; char *journal_device_name; /* for -j */ char *map_file; /* for -n, -N and -f */ char *recovery_file; /* for -r */ unsigned long options; /* -q only yet */ int JJ; /* log file name and handle */ char *log_file_name; FILE *log; }; #define data(fs) ((struct debugreiserfs_data *)((fs)->fs_vp)) #define debug_mode(fs) (data(fs)->mode) #define certain_block(fs) (data(fs)->block) #define input_bitmap(fs) (data(fs)->bitmap) #define input_bitmap_file_name(fs) (data(fs)->input_bitmap) #define scan_area(fs) (data(fs)->scan_area) #define name_pattern(fs) (data(fs)->pattern) #define device_name(fs) (data(fs)->device_name) #define journal_device_name(fs) (data(fs)->journal_device_name) #define map_file(fs) (data(fs)->map_file) #define recovery_file(fs) (data(fs)->recovery_file) #define be_quiet(fs) (data(fs)->options & BE_QUIET) /* stat.c */ void do_stat(reiserfs_filsys_t fs); /* corruption.c */ void do_corrupt_one_block(reiserfs_filsys_t fs, char *fline); void do_leaves_corruption(reiserfs_filsys_t fs, unsigned long nr_leaves_cr); void do_bitmap_corruption(reiserfs_filsys_t fs); void do_fs_random_corrupt(reiserfs_filsys_t fs); /* recover.c */ void do_recover(reiserfs_filsys_t fs); /* scan.c */ void do_scan(reiserfs_filsys_t fs); /* journal.c */ void scan_journal(reiserfs_filsys_t fs); /* unpack.c */ extern int do_unpack(char *host, char *j_filename, char *filename, int verbose); void print_map(reiserfs_filsys_t fs); struct saved_item { struct item_head si_ih; unsigned long si_block; int si_item_num, si_entry_pos; struct saved_item *si_next; /* list of items having the same key */ }; /* Local variables: c-indentation-style: "K&R" mode-name: "LC" c-basic-offset: 4 tab-width: 4 fill-column: 80 End: */