| /* |
| * Copyright 1996-2004 by Hans Reiser, licensing governed by |
| * reiserfsprogs/README |
| */ |
| |
| #include "fsck.h" |
| |
| int screen_width; |
| int screen_curr_pos; |
| char *screen_savebuffer; |
| int screen_savebuffer_len; |
| |
| #define MIN(a, b) (((a)>(b))?(b):(a)) |
| |
| /* semantic pass progress */ |
| void print_name (char * name, int len) |
| { |
| int i; |
| |
| if (fsck_quiet (fs)) |
| return; |
| |
| if ( len + screen_curr_pos + 1 > screen_savebuffer_len) { |
| char *t; |
| |
| t = expandmem(screen_savebuffer, screen_savebuffer_len + 1, |
| len + screen_curr_pos - screen_savebuffer_len + 1); |
| if (!t) { |
| fsck_progress("\nOut of memory\n"); |
| return; // ???? |
| } |
| screen_savebuffer = t; |
| screen_savebuffer_len = len + screen_curr_pos + 1; |
| } |
| strcat(screen_savebuffer,"/"); |
| strncat(screen_savebuffer,name,len); |
| i = screen_curr_pos; |
| screen_curr_pos += len+1; |
| for ( ; i<screen_curr_pos; i++) |
| if ( screen_savebuffer[i] < 32 ) |
| screen_savebuffer[i] = '?'; |
| screen_savebuffer[screen_curr_pos]=0; |
| |
| if ( screen_width < screen_curr_pos ) { |
| printf("\r... %.*s",screen_width - 4, |
| screen_savebuffer + ( screen_curr_pos - (screen_width - 4))); |
| } else |
| printf("/%.*s", len, screen_savebuffer + screen_curr_pos - len); |
| |
| fflush (stdout); |
| } |
| |
| |
| void erase_name (int len) |
| { |
| int i; |
| |
| if (fsck_quiet (fs)) |
| return; |
| |
| if ( screen_curr_pos < screen_width ) { |
| |
| screen_curr_pos-=len+1; |
| screen_savebuffer[screen_curr_pos]=0; |
| |
| for (i = 0; i<=len; i++) |
| printf("\b"); |
| for (i = 0; i<=len+1; i++) |
| printf(" "); |
| for (i = 0; i<=len+1; i++) |
| printf("\b"); |
| } else { |
| screen_curr_pos-=len+1; |
| if (screen_curr_pos < 0 ) |
| die("%s: Get out of buffer's data!\n", __FUNCTION__); |
| |
| screen_savebuffer[screen_curr_pos]=0; |
| printf("\r"); |
| if (screen_curr_pos >= screen_width ) { |
| int t_preface=MIN(screen_curr_pos-screen_width,4); |
| printf("%.*s%.*s", t_preface, "... ", screen_width-t_preface - 1, |
| screen_savebuffer + ( screen_curr_pos - (screen_width - t_preface)) + 1); |
| } else { |
| int space_used=printf("%s", screen_savebuffer); |
| for ( i=space_used; i < screen_width; i++) |
| printf(" "); |
| for ( i=space_used; i < screen_width; i++) |
| printf("\b"); |
| } |
| } |
| |
| fflush (stdout); |
| } |
| |
| |
| |
| /* *size is "real" file size, sd_size - size from stat data */ |
| int wrong_st_size (struct key * key, unsigned long long max_file_size, |
| int blocksize, __u64 * size, __u64 sd_size, int type) |
| { |
| if (sd_size <= max_file_size) { |
| if (sd_size == *size) |
| return 0; |
| |
| if (type == TYPE_DIRENTRY) { |
| /* directory size must match to the sum of length of its entries */ |
| fsck_log ("vpf-10650: The directory %K has the wrong size in the StatData " |
| "(%Lu)%s(%Lu)\n", key, sd_size, fsck_mode(fs) == FSCK_CHECK ? |
| ", should be " : " - corrected to ", *size); |
| return 1; |
| } |
| |
| if (sd_size > *size) { |
| /* size in stat data can be bigger than size calculated by items */ |
| if (fsck_adjust_file_size (fs) || type == TYPE_SYMLINK) { |
| /* but it -o is given - fix that */ |
| fsck_log ("vpf-10660: The file %K has too big size in the StatData " |
| "(%Lu)%s(%Lu)\n", key, sd_size, fsck_mode(fs) == FSCK_CHECK ? |
| ", should be " : " - corrected to ", *size); |
| sem_pass_stat (fs)->fixed_sizes ++; |
| return 1; |
| } |
| *size = sd_size; |
| return 0; |
| } |
| |
| if (!(*size % blocksize)) { |
| /* last item is indirect */ |
| if (((sd_size & ~(blocksize - 1)) == (*size - blocksize)) && |
| sd_size % blocksize) |
| { |
| /* size in stat data is correct */ |
| *size = sd_size; |
| return 0; |
| } |
| } else { |
| /* last item is a direct one */ |
| if (!(*size % 8)) { |
| if (((sd_size & ~7) == (*size - 8)) && sd_size % 8) { |
| /* size in stat data is correct */ |
| *size = sd_size; |
| return 0; |
| } |
| } |
| } |
| } |
| |
| fsck_log ("vpf-10670: The file %K has the wrong size in the StatData (%Lu)%s(%Lu)\n", key, |
| sd_size, fsck_mode(fs) == FSCK_CHECK ? ", should be " : " - corrected to ", |
| *size); |
| sem_pass_stat (fs)->fixed_sizes ++; |
| return 1; |
| } |
| |
| |
| /* sd_blocks is 32 bit only */ |
| /* old stat data shares sd_block and sd_dev - do not wipe sd_rdev out */ |
| /* we should fix it as following: |
| |------------------------------------------------------------------| |
| | | 3.6 | 3.5 | |
| |---------------------------------------------------| | |
| | | blocks | r_dev|generation | blocks/r_dev | |
| |------------------------------------------------------------------| |
| | fifo, sockets | 0 | generation | 0 | |
| | chr/blk_dev | 0 | maj:min | maj:min | |
| | file, dir, link | blocks | generation | blocks | |
| |------------------------------------------------------------------| |
| */ |
| int wrong_st_blocks (struct key * key, __u32 * blocks, __u32 sd_blocks, __u16 mode, |
| int new_format) |
| { |
| int ret = 0; |
| |
| if (S_ISREG (mode) || S_ISLNK (mode) || S_ISDIR (mode)) { |
| if ((!S_ISLNK(mode) && *blocks != sd_blocks) || |
| (S_ISLNK(mode) && *blocks != sd_blocks && (ROUND_UP(*blocks) != sd_blocks))) { |
| fsck_log ("vpf-10680: The %s %K has the wrong block count in the StatData " |
| "(%u)%s(%u)\n", S_ISDIR (mode) ? "directory" : S_ISREG (mode) ? "file" : "link", key, sd_blocks, |
| fsck_mode(fs) == FSCK_CHECK ? ", should be " : " - corrected to ", *blocks); |
| ret = 1; |
| } |
| } else if (new_format || (S_ISFIFO (mode) || S_ISSOCK (mode))) { |
| if (sd_blocks != 0) { |
| fsck_log ("vpf-10690: The object %K has the wrong block count in the StatData " |
| "(%u)%s(%u)\n", key, sd_blocks, fsck_mode(fs) == FSCK_CHECK ? |
| ", should be " : " - corrected to ", 0); |
| *blocks = 0; |
| ret = 1; |
| } |
| } |
| |
| return ret; |
| } |
| /* |
| int wrong_st_rdev (struct key * key, __u32 * sd_rdev, __u16 mode, int new_format) |
| { |
| int ret = 0; |
| |
| if (!new_format) |
| return 0; |
| |
| if (!S_ISCHR (mode) && !S_ISBLK (mode)) { |
| if (*sd_rdev != 0) { |
| fsck_log ("%s %K has wrong sd_rdev %u, has to be 0\n", |
| S_ISDIR (mode) ? "dir" : "file", key, *sd_rdev); |
| *sd_rdev = 0; |
| ret = 1; |
| } |
| } |
| return ret; |
| } |
| */ |
| /* only regular files and symlinks may have items but stat |
| data. Symlink should have body */ |
| int wrong_mode (struct key * key, __u16 * mode, __u64 real_size, int symlink) |
| { |
| int retval = 0; |
| if (S_ISLNK (*mode) && !symlink) { |
| fsck_log ("The file %K (%M) is too big to be the symlink%s regfile\n", |
| key, *mode, fsck_mode(fs) == FSCK_CHECK ? ", should be the" : " - corrected " |
| "to the"); |
| *mode &= ~S_IFMT; |
| *mode |= S_IFREG; |
| retval = 1; |
| } |
| |
| if (ftypelet (*mode) != '?') { |
| /* mode looks reasonable */ |
| if (S_ISREG (*mode) || S_ISLNK (*mode)) |
| return retval; |
| |
| /* device, pipe, socket have no items */ |
| if (!real_size) |
| return retval; |
| } |
| /* there are items, so change file mode to regular file. Otherwise |
| - file bodies do not get deleted */ |
| if (fsck_mode(fs) == FSCK_CHECK) { |
| fsck_log ("The object %K has wrong mode (%M)\n", key, *mode); |
| } else { |
| fsck_log("The object %K has wrong mode (%M) - corrected to %M\n", |
| key, *mode, (S_IFREG | 0600)); |
| } |
| *mode = (S_IFREG | 0600); |
| return 1; |
| } |
| |
| |
| /* key is a key of last file item */ |
| int wrong_first_direct_byte (struct key * key, int blocksize, |
| __u32 * first_direct_byte, |
| __u32 sd_first_direct_byte, __u32 size) |
| { |
| if (!size || is_indirect_key (key)) { |
| /* there is no direct item */ |
| *first_direct_byte = NO_BYTES_IN_DIRECT_ITEM; |
| if (sd_first_direct_byte != NO_BYTES_IN_DIRECT_ITEM) { |
| if (fsck_mode(fs) == FSCK_CHECK) { |
| fsck_log ("The file %K: The wrong info about the tail in the StatData, " |
| "first_direct_byte (%d) - should be (%d)\n", key, |
| sd_first_direct_byte, *first_direct_byte); |
| } else { |
| fsck_log ("The file %K: The wrong info about the tail in the StatData, " |
| "first_direct_byte (%d) - corrected to (%d)\n", key, |
| sd_first_direct_byte, *first_direct_byte); |
| } |
| return 1; |
| } |
| return 0; |
| } |
| |
| /* there is direct item */ |
| *first_direct_byte = (get_offset (key) & ~(blocksize - 1)) + 1; |
| if (*first_direct_byte != sd_first_direct_byte) { |
| if (fsck_mode(fs) == FSCK_CHECK) { |
| fsck_log ("The file %K: The wrong info about the tail in the StatData, " |
| "first_direct_byte (%d) - should be (%d)\n", key, sd_first_direct_byte, |
| *first_direct_byte); |
| } else { |
| fsck_log ("The file %K: The wrong info about the tail in the StatData, " |
| "first_direct_byte (%d) - corrected to (%d)\n", key, sd_first_direct_byte, |
| *first_direct_byte); |
| } |
| |
| return 1; |
| } |
| return 0; |
| } |
| |
| |
| /* delete all items (but directory ones) with the same key 'ih' has |
| (including stat data of not a directory) and put them back at the |
| other place */ |
| void relocate_dir (struct item_head * ih, int change_ih) |
| { |
| struct key key; |
| struct key * rkey; |
| struct path path; |
| struct item_head * path_ih; |
| struct si * si; |
| __u32 new_objectid; |
| |
| /* starting with the leftmost one - look for all items of file, |
| store them and delete */ |
| key = ih->ih_key; |
| set_type_and_offset (KEY_FORMAT_1, &key, SD_OFFSET, TYPE_STAT_DATA); |
| |
| si = 0; |
| while (1) { |
| reiserfs_search_by_key_4 (fs, &key, &path); |
| |
| if (get_item_pos (&path) == B_NR_ITEMS (get_bh (&path))) { |
| rkey = uget_rkey (&path); |
| if (rkey && !not_of_one_file (&key, rkey)) { |
| /* file continues in the right neighbor */ |
| key = *rkey; |
| pathrelse (&path); |
| continue; |
| } |
| /* there is no more items of a directory */ |
| pathrelse (&path); |
| break; |
| } |
| |
| if (is_stat_data_ih (get_ih(&path))) |
| fix_obviously_wrong_sd_mode (&path); |
| |
| path_ih = get_ih (&path); |
| if (not_of_one_file (&key, &(path_ih->ih_key))) { |
| /* there are no more item with this key */ |
| pathrelse (&path); |
| break; |
| } |
| |
| /* ok, item found, but make sure that it is not a directory one */ |
| if ((is_stat_data_ih (path_ih) && not_a_directory (get_item (&path))) || |
| is_direct_ih (path_ih) || is_indirect_ih (path_ih)) { |
| /* item of not a directory found. Leave it in the |
| tree. FIXME: should not happen */ |
| key = path_ih->ih_key; |
| set_offset (KEY_FORMAT_1, &key, get_offset (&key) + 1); |
| pathrelse (&path); |
| continue; |
| } |
| |
| /* directory stat data ro directory item */ |
| si = save_and_delete_file_item (si, &path); |
| } |
| |
| |
| if (!si) { |
| fsck_log ("relocate_dir: WARNING: No one item of the directory %K found\n", &key); |
| return; |
| } |
| |
| |
| /* get new objectid for relocation or get objectid with which file |
| was relocated already */ |
| new_objectid = objectid_for_relocation (&ih->ih_key); |
| set_key_objectid (&ih->ih_key, new_objectid); |
| |
| /* put all items removed back into tree */ |
| while (si) { |
| fsck_log ("relocate_dir: Moving %k to ", &si->si_ih.ih_key); |
| set_key_objectid (&si->si_ih.ih_key, new_objectid); |
| fsck_log ("%k\n", &si->si_ih.ih_key); |
| if (get_offset (&(si->si_ih.ih_key)) == DOT_OFFSET) { |
| /* fix "." entry to point to a directtory properly */ |
| struct reiserfs_de_head * deh; |
| |
| deh = (struct reiserfs_de_head *)si->si_dnm_data; |
| set_deh_objectid (deh, new_objectid); |
| } |
| insert_item_separately (&(si->si_ih), si->si_dnm_data, 1/*was in tree*/); |
| si = remove_saved_item (si); |
| } |
| } |
| |
| |
| |
| /* path is path to stat data. If file will be relocated - new_ih will contain |
| a key file was relocated with */ |
| int rebuild_check_regular_file (struct path * path, void * sd, |
| struct item_head * new_ih) |
| { |
| int is_new_file; |
| // struct key sd_key; |
| __u16 mode; |
| __u32 nlink; |
| __u64 real_size, saved_size; |
| __u32 blocks, saved_blocks; /* proper values and value in stat data */ |
| __u32 first_direct_byte, saved_first_direct_byte; |
| |
| struct buffer_head * bh; |
| struct item_head * ih, sd_ih; |
| int fix_sd; |
| int symlnk = 0; |
| int retval; |
| |
| retval = OK; |
| |
| /* stat data of a file */ |
| ih = get_ih (path); |
| bh = get_bh (path); |
| |
| if (new_ih) { |
| /* this objectid is used already */ |
| *new_ih = *ih; |
| pathrelse (path); |
| rewrite_file (new_ih, 1, 1); |
| linked_already(&new_ih->ih_key); |
| sem_pass_stat (fs)->oid_sharing_files_relocated ++; |
| retval = RELOCATED; |
| if (reiserfs_search_by_key_4 (fs, &(new_ih->ih_key), path) == ITEM_NOT_FOUND) |
| reiserfs_panic ("%s: Could not find the StatData of the relocated file %k", |
| __FUNCTION__, &(new_ih->ih_key)); |
| /* stat data is marked unreachable again due to relocation, fix that */ |
| ih = get_ih (path); |
| bh = get_bh (path); |
| mark_item_reachable (ih, bh); |
| sd = get_item (path); |
| |
| } |
| |
| id_map_mark(semantic_id_map(fs), get_key_objectid (&ih->ih_key)); |
| |
| /* check and set nlink first */ |
| get_sd_nlink (ih, sd, &nlink); |
| nlink ++; |
| set_sd_nlink (ih, sd, &nlink); |
| mark_buffer_dirty (bh); |
| |
| if (nlink > 1) |
| return retval; |
| |
| /* firts name of a file found */ |
| if (get_ih_item_len (ih) == SD_SIZE) |
| is_new_file = 1; |
| else |
| is_new_file = 0; |
| |
| get_sd_mode (ih, sd, &mode); |
| get_sd_size (ih, sd, &saved_size); |
| get_sd_blocks (ih, sd, &saved_blocks); |
| if (!is_new_file) |
| get_sd_first_direct_byte (ih, sd, &saved_first_direct_byte); |
| |
| /* we met this file first time */ |
| if (S_ISREG (mode)) { |
| sem_pass_stat(fs)->regular_files ++; |
| } else if (S_ISLNK (mode)) { |
| symlnk = 1; |
| sem_pass_stat (fs)->symlinks ++; |
| } else { |
| sem_pass_stat (fs)->others ++; |
| } |
| |
| |
| sd_ih = *ih; |
| // sd_key = sd_ih.ih_key; |
| pathrelse (path); |
| |
| if (are_file_items_correct (&sd_ih, sd, &real_size, &blocks, 1/*mark items reachable*/, |
| &symlnk) != 1) |
| { |
| /* unpassed items will be deleted in pass 4 as they left unaccessed */ |
| sem_pass_stat (fs)->broken_files ++; |
| } |
| |
| fix_sd = 0; |
| |
| fix_sd += wrong_mode (/*&sd_key, */ &sd_ih.ih_key, &mode, real_size, symlnk); |
| |
| if (!is_new_file) |
| fix_sd += wrong_first_direct_byte (&sd_ih.ih_key, fs->fs_blocksize, |
| &first_direct_byte, saved_first_direct_byte, real_size); |
| |
| fix_sd += wrong_st_size (/*&sd_key,*/ &sd_ih.ih_key, |
| is_new_file ? MAX_FILE_SIZE_V2 : MAX_FILE_SIZE_V1, |
| fs->fs_blocksize, &real_size, saved_size, symlnk ? TYPE_SYMLINK : 0); |
| |
| fix_sd += wrong_st_blocks (&sd_ih.ih_key, &blocks, saved_blocks, mode, is_new_file); |
| |
| if (fix_sd) { |
| /* find stat data and correct it */ |
| set_type_and_offset (KEY_FORMAT_1, &sd_ih.ih_key, SD_OFFSET, TYPE_STAT_DATA); |
| if (reiserfs_search_by_key_4 (fs, &sd_ih.ih_key, path) != ITEM_FOUND) |
| reiserfs_panic ("%s: The StatData of the file %k could not be found", |
| __FUNCTION__, &sd_ih.ih_key); |
| |
| bh = get_bh (path); |
| ih = get_ih (path); |
| sd = get_item (path); |
| set_sd_size (ih, sd, &real_size); |
| set_sd_blocks (ih, sd, &blocks); |
| set_sd_mode (ih, sd, &mode); |
| if (!is_new_file) |
| set_sd_first_direct_byte (ih, sd, &first_direct_byte); |
| mark_buffer_dirty (bh); |
| } |
| |
| return retval; |
| } |
| |
| |
| static int is_rootdir_key (struct key * key) |
| { |
| if (comp_keys (key, &root_dir_key)) |
| return 0; |
| return 1; |
| } |
| |
| |
| /* returns buffer, containing found directory item.*/ |
| static char * get_next_directory_item (struct key * key, /* on return this will |
| contain key of next item |
| in the tree */ |
| struct key * parent, |
| struct item_head * ih,/*not in tree*/ |
| __u32 * pos_in_item) |
| { |
| INITIALIZE_PATH (path); |
| char * dir_item; |
| struct key * rdkey; |
| struct buffer_head * bh; |
| struct reiserfs_de_head * deh; |
| int i; |
| int retval; |
| |
| |
| if ((retval = reiserfs_search_by_entry_key (fs, key, &path)) != POSITION_FOUND) |
| reiserfs_panic ("get_next_directory_item: The current directory %k cannot be " |
| "found", key); |
| |
| /* leaf containing directory item */ |
| bh = PATH_PLAST_BUFFER (&path); |
| *pos_in_item = path.pos_in_item; |
| *ih = *get_ih (&path); |
| deh = B_I_DEH (bh, ih); |
| |
| /* make sure, that ".." exists as well */ |
| if (get_offset (key) == DOT_OFFSET) { |
| if (get_ih_entry_count (ih) < 2 || |
| name_in_entry_length (ih, deh + 1, 1) != 2 || |
| strncmp (name_in_entry (deh + 1, 1), "..", 2)) |
| { |
| fsck_log ("get_next_directory_item: The entry \"..\" cannot be found in %k\n", &ih->ih_key); |
| pathrelse (&path); |
| return 0; |
| } |
| } |
| |
| /* mark hidden entries as visible, set "." and ".." correctly */ |
| deh += *pos_in_item; |
| for (i = *pos_in_item; i < get_ih_entry_count (ih); i ++, deh ++) { |
| int namelen; |
| char * name; |
| |
| name = name_in_entry (deh, i); |
| namelen = name_in_entry_length (ih, deh, i); |
| if (de_hidden (deh)) |
| reiserfs_panic ("get_next_directory_item: item %k: hidden entry %d \'%.*s\'\n", |
| key, i, namelen, name); |
| |
| if (get_deh_offset (deh) == DOT_OFFSET) { |
| if (not_of_one_file (&(deh->deh2_dir_id), key)) { |
| /* "." must point to the directory it is in */ |
| |
| //deh->deh_objectid != REISERFS_ROOT_PARENT_OBJECTID)/*????*/ { |
| fsck_log ("get_next_directory_item: The entry \".\" of the directory %K pointes to %K, instead of %K", |
| key, (struct key *)(&(deh->deh2_dir_id)), key); |
| set_deh_dirid (deh, get_key_dirid (key)); |
| set_deh_objectid (deh, get_key_objectid (key)); |
| mark_buffer_dirty (bh); |
| fsck_log (" - corrected\n"); |
| } |
| } |
| |
| if (get_deh_offset (deh) == DOT_DOT_OFFSET) { |
| /* set ".." so that it points to the correct parent directory */ |
| if (comp_short_keys (&(deh->deh2_dir_id), parent)) { |
| fsck_log ("get_next_directory_item: The entry \"..\" of the directory %K pointes to %K, instead of %K", |
| key, (struct key *)(&(deh->deh2_dir_id)), parent); |
| set_deh_dirid (deh, get_key_dirid (parent)); |
| set_deh_objectid (deh, get_key_objectid (parent)); |
| mark_buffer_dirty (bh); |
| fsck_log (" - corrected\n"); |
| } |
| } |
| } |
| |
| /* copy directory item to the temporary buffer */ |
| dir_item = getmem (get_ih_item_len (ih)); |
| memcpy (dir_item, B_I_PITEM (bh, ih), get_ih_item_len (ih)); |
| |
| |
| /* next item key */ |
| if (PATH_LAST_POSITION (&path) == (B_NR_ITEMS (bh) - 1) && |
| (rdkey = uget_rkey (&path))) |
| copy_key (key, rdkey); |
| else { |
| set_key_dirid (key, 0); |
| set_key_objectid (key, 0); |
| } |
| |
| if (fsck_mode (fs) == FSCK_REBUILD) |
| mark_item_reachable (get_ih (&path), bh); |
| pathrelse (&path); |
| |
| return dir_item; |
| } |
| |
| |
| // get key of an object pointed by direntry and the key of the entry itself |
| void get_object_key (struct reiserfs_de_head * deh, struct key * key, |
| struct key * entry_key, struct item_head * ih) |
| { |
| /* entry points to this key */ |
| set_key_dirid (key, get_deh_dirid (deh)); |
| set_key_objectid (key, get_deh_objectid (deh)); |
| set_key_offset_v1 (key, SD_OFFSET); |
| set_key_uniqueness (key, 0); |
| |
| /* key of entry */ |
| set_key_dirid (entry_key, get_key_dirid (&ih->ih_key)); |
| set_key_objectid (entry_key, get_key_objectid (&ih->ih_key)); |
| set_key_offset_v1 (entry_key, get_deh_offset (deh)); |
| set_key_uniqueness (entry_key, DIRENTRY_UNIQUENESS); |
| } |
| |
| int fix_obviously_wrong_sd_mode (struct path * path) { |
| struct key * next_key = NULL; |
| __u16 mode; |
| int retval = 0; |
| |
| next_key = reiserfs_next_key (path); |
| |
| if (!next_key || not_of_one_file (next_key, &get_ih(path)->ih_key)) |
| return 0; |
| |
| /* next item exists and of the same file. Fix the SD mode */ |
| |
| if (not_a_directory (get_item (path)) && is_direntry_key (next_key)) { |
| /* make SD mode SD of dir */ |
| get_sd_mode (get_ih (path), get_item (path), &mode); |
| fsck_log ("The directory %K had wrong mode %M", &get_ih(path)->ih_key, mode); |
| |
| if (fsck_mode(fs) != FSCK_CHECK) { |
| mode &= ~S_IFMT; |
| mode |= S_IFDIR; |
| fsck_log (" - corrected to %M\n", mode); |
| set_sd_mode (get_ih (path), get_item (path), &mode); |
| mark_buffer_dirty (get_bh(path)); |
| } else { |
| fsck_log ("\n"); |
| retval = 1; |
| } |
| } else if (!not_a_directory (get_item (path)) && !is_direntry_key (next_key)) { |
| /* make SD mode SD of regular file */ |
| get_sd_mode (get_ih (path), get_item (path), &mode); |
| fsck_log ("The file %K had wrong mode %M", &get_ih(path)->ih_key, mode); |
| if (fsck_mode(fs) != FSCK_CHECK) { |
| mode &= ~S_IFMT; |
| mode |= S_IFREG; |
| fsck_log (" - corrected to %M\n", mode); |
| set_sd_mode (get_ih (path), get_item (path), &mode); |
| mark_buffer_dirty (get_bh(path)); |
| } else { |
| fsck_log ("\n"); |
| retval = 1; |
| } |
| |
| } |
| |
| return retval; |
| } |
| |
| /* check recursively the semantic tree. Returns OK if entry points to good |
| object, STAT_DATA_NOT_FOUND if stat data was not found or RELOCATED when |
| file was relocated because its objectid was already marked as used by |
| another file */ |
| int rebuild_semantic_pass (struct key * key, struct key * parent, int dot_dot, |
| struct item_head * new_ih) |
| { |
| struct path path; |
| void * sd; |
| int is_new_dir; |
| __u32 nlink; |
| struct buffer_head * bh; |
| struct item_head * ih; |
| int retval, retval1; |
| char * dir_item; |
| __u32 pos_in_item; |
| struct item_head tmp_ih; |
| struct key item_key, entry_key, object_key; |
| __u64 dir_size; |
| __u32 blocks; |
| __u64 saved_size; |
| __u32 saved_blocks; |
| int fix_sd; |
| int relocate; |
| int dir_format = 0; |
| __u16 mode; |
| |
| |
| retval = OK; |
| |
| start_again: /* when directory was relocated */ |
| |
| if (!KEY_IS_STAT_DATA_KEY (key)) |
| reiserfs_panic ("rebuild_semantic_pass: The key %k must be key of a StatData", key); |
| |
| /* look for stat data of an object */ |
| if (reiserfs_search_by_key_4 (fs, key, &path) == ITEM_NOT_FOUND) { |
| pathrelse (&path); |
| if (is_rootdir_key (key)) |
| /* root directory has to exist at this point */ |
| reiserfs_panic ("rebuild_semantic_pass: The root directory StatData was not found"); |
| |
| return STAT_DATA_NOT_FOUND; |
| } |
| |
| |
| /* stat data has been found */ |
| bh = get_bh (&path); |
| ih = get_ih (&path); |
| sd = get_item(&path); |
| |
| /* */ |
| get_sd_nlink (ih, sd, &nlink); |
| |
| relocate = 0; |
| if (!nlink) { |
| /* we reached the stat data for the first time */ |
| if (id_map_mark(semantic_id_map(fs), get_key_objectid (&ih->ih_key))) { |
| /* calculate number of found files/dirs who are using objectid |
| which is used by another file */ |
| sem_pass_stat (fs)->oid_sharing ++; |
| if (1/*fsck_adjust_file_size (fs)*/) |
| /* this works for files only */ |
| relocate = 1; |
| } |
| |
| mark_item_reachable (ih, bh); |
| } |
| |
| fix_obviously_wrong_sd_mode (&path); |
| |
| if (not_a_directory (sd)) { |
| retval = rebuild_check_regular_file (&path, sd, relocate ? new_ih : 0); |
| pathrelse (&path); |
| return retval; |
| } |
| |
| if (relocate) { |
| if (!new_ih) |
| reiserfs_panic ("rebuild_semantic_pass: Memory is not prepared for relocation of %K", |
| &ih->ih_key); |
| *new_ih = *ih; |
| pathrelse (&path); |
| sem_pass_stat (fs)->oid_sharing_dirs_relocated ++; |
| relocate_dir (new_ih, 1); |
| linked_already(&new_ih->ih_key); |
| *key = new_ih->ih_key; |
| retval = RELOCATED; |
| |
| goto start_again; |
| } |
| |
| /* it looks like stat data of a directory found */ |
| if (nlink) { |
| /* we saw this directory already */ |
| if (!dot_dot) { |
| /* this name is not ".." - and hard links are not allowed on |
| directories */ |
| pathrelse (&path); |
| return STAT_DATA_NOT_FOUND; |
| } else { |
| /* ".." found */ |
| nlink ++; |
| set_sd_nlink (ih, sd, &nlink); |
| mark_buffer_dirty (bh); |
| pathrelse (&path); |
| return OK; |
| } |
| } |
| |
| |
| /* we see the directory first time */ |
| sem_pass_stat (fs)->directories ++; |
| nlink = 2; |
| if (get_key_objectid (key) == REISERFS_ROOT_OBJECTID) |
| nlink ++; |
| set_sd_nlink (ih, sd, &nlink); |
| mark_buffer_dirty (bh); |
| |
| if (get_ih_item_len (ih) == SD_SIZE) |
| is_new_dir = 1; |
| else |
| is_new_dir = 0; |
| |
| |
| /* |
| { |
| struct key * tmp; |
| |
| // check next item: if it is not a directory item of the same file |
| // therefore sd_mode is corrupted so we just reset it to regular file |
| // mode |
| tmp = reiserfs_next_key (&path); |
| if (tmp && !not_of_one_file (tmp, key) && !is_direntry_key (tmp)) { |
| __u16 mode; |
| |
| get_sd_mode (ih, sd, &mode); |
| fsck_log ("file %K had broken mode %M, ", key, mode); |
| mode &= ~S_IFMT; |
| mode |= S_IFREG; |
| fsck_log ("fixed to %M\n", mode); |
| set_sd_mode (ih, sd, &mode); |
| |
| nlink = 0; |
| set_sd_nlink (ih, sd, &nlink); |
| |
| retval = rebuild_check_regular_file (&path, sd, 0); //no relocate |
| pathrelse (&path); |
| return retval; |
| } |
| } |
| */ |
| |
| |
| dir_format = (get_ih_item_len (get_ih (&path)) == SD_SIZE) ? KEY_FORMAT_2 : KEY_FORMAT_1; |
| /* save stat data's size and st_blocks */ |
| get_sd_size (ih, sd, &saved_size); |
| get_sd_blocks (ih, sd, &saved_blocks); |
| get_sd_mode (ih, sd, &mode); |
| |
| /* release path pointing to stat data */ |
| pathrelse (&path); |
| |
| /* make sure that "." and ".." exist */ |
| reiserfs_add_entry (fs, key, ".", name_length (".", dir_format), key, 1 << IH_Unreachable); |
| reiserfs_add_entry (fs, key, "..", name_length ("..", dir_format), parent, 1 << IH_Unreachable); |
| |
| set_key_dirid (&item_key, get_key_dirid (key)); |
| set_key_objectid (&item_key, get_key_objectid (key)); |
| set_key_offset_v1 (&item_key, DOT_OFFSET); |
| set_key_uniqueness (&item_key, DIRENTRY_UNIQUENESS); |
| |
| |
| dir_size = 0; |
| while ((dir_item = get_next_directory_item (&item_key, parent, &tmp_ih, &pos_in_item)) != 0) { |
| /* dir_item is copy of the item in separately allocated memory, |
| item_key is a key of next item in the tree */ |
| int i; |
| char * name = 0; |
| int namelen, entry_len; |
| struct reiserfs_de_head * deh = (struct reiserfs_de_head *)dir_item + pos_in_item; |
| |
| for (i = pos_in_item; i < get_ih_entry_count (&tmp_ih); i ++, deh ++) { |
| struct item_head relocated_ih; |
| |
| if (name) { |
| free (name); |
| name = 0; |
| } |
| |
| namelen = name_in_entry_length (&tmp_ih, deh, i); |
| asprintf (&name, "%.*s", namelen, name_in_entry (deh, i)); |
| |
| entry_len = entry_length (&tmp_ih, deh, i); |
| |
| get_object_key (deh, &object_key, &entry_key, &tmp_ih); |
| |
| if ((dir_format == KEY_FORMAT_2) && (entry_len % 8 != 0)) { |
| /* not alighed directory of new format - delete it */ |
| fsck_log ("Entry %K (\"%.*s\") in the directory %K is not formated properly - fixed.\n", |
| (struct key *)&(deh->deh2_dir_id), namelen, name, &tmp_ih.ih_key); |
| reiserfs_remove_entry (fs, &entry_key); |
| entry_len = name_length (name, dir_format); |
| reiserfs_add_entry (fs, key, name, entry_len, |
| (struct key *)&(deh->deh2_dir_id), 0); |
| } |
| /* |
| if ((dir_format == KEY_FORMAT_1) && (namelen != entry_len)) { |
| // aligned entry in directory of old format - remove and insert it back |
| fsck_log ("Entry %K (\"%.*s\") in the directory %K is not formated properly - deleted\n", |
| (struct key *)&(deh->deh2_dir_id), namelen, name, &tmp_ih.ih_key); |
| reiserfs_remove_entry (fs, &entry_key); |
| entry_len = name_length (name, dir_format); |
| reiserfs_add_entry (fs, key, name, entry_len, |
| (struct key *)&(deh->deh2_dir_id), 0); |
| } |
| */ |
| if (is_dot (name, namelen)) { |
| dir_size += DEH_SIZE + entry_len; |
| continue; |
| } |
| |
| print_name (name, namelen); |
| |
| if (!is_properly_hashed (fs, name, namelen, get_deh_offset (deh))) |
| reiserfs_panic ("rebuild_semantic_pass: Hash mismatch detected for (\"%.*s\") in directory %K\n", |
| namelen, name, &tmp_ih.ih_key); |
| |
| |
| retval1 = rebuild_semantic_pass (&object_key, key, is_dot_dot (name, namelen), &relocated_ih); |
| |
| erase_name (namelen); |
| |
| switch (retval1) { |
| case OK: |
| dir_size += DEH_SIZE + entry_len; |
| break; |
| |
| case STAT_DATA_NOT_FOUND: |
| case DIRECTORY_HAS_NO_ITEMS: |
| if (get_offset (&entry_key) == DOT_DOT_OFFSET && |
| get_key_objectid (&object_key) == REISERFS_ROOT_PARENT_OBJECTID) { |
| /* ".." of root directory can not be found */ |
| dir_size += DEH_SIZE + entry_len; |
| continue; |
| } |
| fsck_log ("%s: The entry %K (\"%.*s\") in directory %K points to nowhere - is removed\n", |
| __FUNCTION__, &object_key, namelen, name, &tmp_ih.ih_key); |
| reiserfs_remove_entry (fs, &entry_key); |
| sem_pass_stat (fs)->deleted_entries ++; |
| break; |
| |
| case RELOCATED: |
| /* file was relocated, update key in corresponding directory entry */ |
| if (reiserfs_search_by_entry_key (fs, &entry_key, &path) != POSITION_FOUND) { |
| fsck_log ("WARNING: Cannot find the name of the relocated file %K in the directory %K\n", |
| &object_key, &tmp_ih.ih_key); |
| } else { |
| /* update key dir entry points to */ |
| struct reiserfs_de_head * tmp_deh; |
| |
| tmp_deh = B_I_DEH (get_bh (&path), get_ih (&path)) + path.pos_in_item; |
| fsck_log ("The entry %K (\"%.*s\") in directory %K updated to point to ", |
| &object_key, namelen, name, &tmp_ih.ih_key); |
| set_deh_dirid (tmp_deh, get_key_dirid (&relocated_ih.ih_key)); |
| set_deh_objectid (tmp_deh, get_key_objectid (&relocated_ih.ih_key)); |
| |
| fsck_log ("%K\n", &tmp_deh->deh2_dir_id); |
| mark_buffer_dirty (get_bh (&path)); |
| } |
| dir_size += DEH_SIZE + entry_len; |
| pathrelse (&path); |
| break; |
| } |
| } /* for */ |
| |
| freemem (dir_item); |
| free (name); |
| name = 0; |
| |
| if (not_of_one_file (&item_key, key)) |
| /* next key is not of this directory */ |
| break; |
| |
| } /* while (dir_item) */ |
| |
| |
| if (dir_size == 0) |
| /* FIXME: is it possible? */ |
| return DIRECTORY_HAS_NO_ITEMS; |
| |
| /* calc correct value of sd_blocks field of stat data */ |
| blocks = dir_size2st_blocks (dir_size); |
| |
| fix_sd = 0; |
| fix_sd += wrong_st_blocks (key, &blocks, saved_blocks, mode, is_new_dir); |
| fix_sd += wrong_st_size (key, is_new_dir ? MAX_FILE_SIZE_V2 : MAX_FILE_SIZE_V1, |
| fs->fs_blocksize, &dir_size, saved_size, TYPE_DIRENTRY); |
| |
| if (fix_sd) { |
| /* we have to fix either sd_size or sd_blocks, so look for stat data again */ |
| if (reiserfs_search_by_key_4 (fs, key, &path) != ITEM_FOUND) |
| reiserfs_panic ("rebuild_semantic_pass: The StatData of the file %K was not found", key); |
| |
| bh = get_bh (&path); |
| ih = get_ih (&path); |
| sd = get_item (&path); |
| |
| set_sd_size (ih, sd, &dir_size); |
| set_sd_blocks (ih, sd, &blocks); |
| mark_buffer_dirty (bh); |
| pathrelse (&path); |
| } |
| |
| return retval; |
| } |
| |
| |
| int is_dot (char * name, int namelen) |
| { |
| return (namelen == 1 && name[0] == '.') ? 1 : 0; |
| } |
| |
| |
| int is_dot_dot (char * name, int namelen) |
| { |
| return (namelen == 2 && name[0] == '.' && name[1] == '.') ? 1 : 0; |
| } |
| |
| |
| int not_a_directory (void * sd) |
| { |
| /* mode is at the same place and of the same size in both stat |
| datas (v1 and v2) */ |
| struct stat_data_v1 * sd_v1 = sd; |
| |
| return !(S_ISDIR (le16_to_cpu (sd_v1->sd_mode))); |
| } |
| |
| int not_a_regfile (void * sd) |
| { |
| /* mode is at the same place and of the same size in both stat |
| datas (v1 and v2) */ |
| struct stat_data_v1 * sd_v1 = sd; |
| |
| return !(S_ISREG (le16_to_cpu (sd_v1->sd_mode))); |
| } |
| |
| |
| |
| void zero_nlink (struct item_head * ih, void * sd) |
| { |
| int zero = 0; |
| |
| if (get_ih_item_len (ih) == SD_V1_SIZE && get_ih_key_format (ih) != KEY_FORMAT_1) { |
| fsck_log ("zero_nlink: The StatData %k of the wrong format version (%d) - corrected to (%d)\n", |
| ih, get_ih_key_format (ih), KEY_FORMAT_1); |
| set_ih_key_format (ih, KEY_FORMAT_1); |
| } |
| if (get_ih_item_len (ih) == SD_SIZE && get_ih_key_format (ih) != KEY_FORMAT_2) { |
| fsck_log ("zero_nlink: The StatData %k of the wrong format version (%d) - corrected to (%d)\n", |
| ih, get_ih_key_format (ih), KEY_FORMAT_2); |
| set_ih_key_format (ih, KEY_FORMAT_2); |
| } |
| |
| set_sd_nlink (ih, sd, &zero); |
| } |
| |
| |
| |
| void modify_item (struct item_head * ih, void * item) |
| { |
| zero_nlink (ih, item); |
| mark_item_unreachable (ih); |
| } |
| |
| |
| /* mkreiserfs should have created this */ |
| static void make_sure_lost_found_exists (reiserfs_filsys_t * fs) |
| { |
| int retval; |
| INITIALIZE_PATH (path); |
| unsigned int gen_counter; |
| __u32 objectid; |
| __u64 sd_size; |
| __u32 sd_blocks; |
| struct buffer_head * bh; |
| struct item_head * ih; |
| void * sd; |
| int item_len; |
| |
| |
| /* look for "lost+found" in the root directory */ |
| retval = reiserfs_find_entry (fs, &root_dir_key, |
| "lost+found", &gen_counter, |
| &lost_found_dir_key); |
| if (!retval) { |
| objectid = id_map_alloc(proper_id_map(fs)); |
| if (!objectid) { |
| fsck_progress ("Could not allocate an objectid for \"/lost+found\", \ |
| lost files will not be linked\n"); |
| return; |
| } |
| set_key_dirid (&lost_found_dir_key, REISERFS_ROOT_OBJECTID); |
| set_key_objectid (&lost_found_dir_key, objectid); |
| } |
| |
| |
| /* look for stat data of "lost+found" */ |
| retval = reiserfs_search_by_key_4 (fs, &lost_found_dir_key, &path); |
| if (retval == ITEM_NOT_FOUND) |
| lost_found_dir_format = create_dir_sd (fs, &path, &lost_found_dir_key, modify_item); |
| else { |
| struct item_head * ih = get_ih (&path); |
| |
| if (!is_stat_data_ih (ih)) |
| reiserfs_panic ("It must be lost+found's stat data %k\n", &ih->ih_key); |
| |
| fix_obviously_wrong_sd_mode (&path); |
| |
| if (not_a_directory (get_item (&path))) { |
| fsck_progress ("\"/lost+found\" exists, but it is not a directory, \ |
| lost files will not be linked\n"); |
| set_key_objectid (&lost_found_dir_key, 0); |
| pathrelse (&path); |
| return; |
| } |
| |
| lost_found_dir_format = (get_ih_item_len (get_ih (&path)) == SD_SIZE) ? KEY_FORMAT_2 : KEY_FORMAT_1; |
| |
| pathrelse (&path); |
| } |
| |
| /* add "." and ".." if any of them do not exist */ |
| reiserfs_add_entry (fs, &lost_found_dir_key, ".", name_length (".", lost_found_dir_format), |
| &lost_found_dir_key, 1 << IH_Unreachable); |
| reiserfs_add_entry (fs, &lost_found_dir_key, "..", name_length ("..", lost_found_dir_format), |
| &root_dir_key, 1 << IH_Unreachable); |
| |
| item_len = reiserfs_add_entry (fs, &root_dir_key, "lost+found", |
| name_length ("lost+found", root_dir_format), &lost_found_dir_key, 1 << IH_Unreachable); |
| |
| if (item_len) { |
| if (reiserfs_search_by_key_4 (fs, &root_dir_key, &path) == ITEM_NOT_FOUND) |
| reiserfs_panic ("%s: StatData of the root directory must exists", __FUNCTION__); |
| |
| bh = get_bh (&path); |
| ih = get_ih (&path); |
| sd = get_item(&path); |
| |
| get_sd_size (ih, sd, &sd_size); |
| sd_size += item_len; |
| set_sd_size (ih, sd, &sd_size); |
| sd_blocks = dir_size2st_blocks (sd_size); |
| set_sd_blocks (ih, sd, &sd_blocks); |
| mark_buffer_dirty (bh); |
| pathrelse (&path); |
| } |
| |
| return; |
| } |
| |
| /* Result of the rebuild pass will be saved in the state file which is needed to start |
| * fsck again from the next pass. */ |
| static void save_rebuild_semantic_result (reiserfs_filsys_t * fs) { |
| FILE * file; |
| int retval; |
| |
| file = open_file ("temp_fsck_file.deleteme", "w+"); |
| if (!file) |
| return; |
| |
| reiserfs_begin_stage_info_save (file, SEMANTIC_DONE); |
| /* Method not implemented yet. |
| reiserfs_objectid_map_save (file, semantic_id_map (fs)); |
| */ |
| reiserfs_end_stage_info_save (file); |
| close_file (file); |
| retval = rename ("temp_fsck_file.deleteme", state_dump_file (fs)); |
| if (retval != 0) |
| fsck_progress ("%s: Could not rename the temporary file temp_fsck_file.deleteme to %s", |
| __FUNCTION__, state_dump_file (fs)); |
| } |
| |
| /* we have nothing to load from a state file, but we have to fetch |
| on-disk bitmap, copy it to allocable bitmap, and fetch objectid |
| map */ |
| void load_semantic_result (FILE * file, reiserfs_filsys_t * fs) |
| { |
| fsck_new_bitmap (fs) = reiserfs_create_bitmap (get_sb_block_count (fs->fs_ondisk_sb)); |
| reiserfs_bitmap_copy (fsck_new_bitmap (fs), fs->fs_bitmap2); |
| |
| fsck_allocable_bitmap (fs) = reiserfs_create_bitmap (get_sb_block_count (fs->fs_ondisk_sb)); |
| reiserfs_bitmap_copy (fsck_allocable_bitmap (fs), fs->fs_bitmap2); |
| |
| fs->block_allocator = reiserfsck_reiserfs_new_blocknrs; |
| fs->block_deallocator = reiserfsck_reiserfs_free_block; |
| |
| /* we need objectid map on semantic pass to be able to relocate files */ |
| proper_id_map (fs) = id_map_init(); |
| /* Not implemented yet. |
| fetch_objectid_map (proper_id_map (fs), fs); |
| semantic_id_map (fs) = reiserfs_objectid_map_load (file); |
| */ |
| } |
| |
| static void before_pass_3 (reiserfs_filsys_t * fs) |
| { |
| semantic_id_map (fs) = id_map_init(); |
| } |
| |
| static void after_pass_3 (reiserfs_filsys_t * fs) |
| { |
| /* update super block: objectid map, fsck state */ |
| set_sb_fs_state (fs->fs_ondisk_sb, SEMANTIC_DONE); |
| mark_buffer_dirty (fs->fs_super_bh); |
| |
| /* write all dirty blocks */ |
| fsck_progress ("Flushing.."); |
| id_map_flush(proper_id_map (fs), fs); |
| fs->fs_dirt = 1; |
| reiserfs_flush_to_ondisk_bitmap (fsck_new_bitmap(fs), fs); |
| reiserfs_flush (fs); |
| fsck_progress ("finished\n"); |
| |
| stage_report (3, fs); |
| |
| if (!fsck_run_one_step (fs)) { |
| if (fsck_user_confirmed (fs, "Continue? (Yes):", "Yes\n", 1)) |
| /* reiserfsck continues */ |
| return; |
| } |
| |
| save_rebuild_semantic_result (fs); |
| |
| id_map_free(proper_id_map (fs)); |
| proper_id_map (fs) = 0; |
| |
| fs->fs_dirt = 1; |
| reiserfs_close (fs); |
| exit(0); |
| } |
| |
| /* this is part of rebuild tree */ |
| void pass_3_semantic (reiserfs_filsys_t * fs) |
| { |
| before_pass_3 (fs); |
| |
| fsck_progress ("Pass 3 (semantic):\n"); |
| |
| /* when warnings go not to stderr - separate them in the log */ |
| if (fsck_log_file (fs) != stderr) |
| fsck_log ("####### Pass 3 #########\n"); |
| |
| |
| if (!fs->fs_hash_function) |
| reiserfs_panic ("Hash function should be selected already"); |
| |
| make_sure_root_dir_exists (fs, modify_item, 1 << IH_Unreachable); |
| make_sure_lost_found_exists (fs); |
| |
| id_map_mark(proper_id_map(fs), get_key_objectid(&root_dir_key)); |
| id_map_mark(proper_id_map(fs), get_key_objectid(&lost_found_dir_key)); |
| |
| /* link all relocated files into /lost+found directory */ |
| link_relocated_files (); |
| |
| rebuild_semantic_pass (&root_dir_key, &parent_root_dir_key, 0/*!dot_dot*/, 0/*reloc_ih*/); |
| |
| add_badblock_list(fs, 1); |
| |
| after_pass_3 (fs); |
| } |