1 /* 2 * resize2fs.h --- ext2 resizer header file 3 * 4 * Copyright (C) 1997, 1998 by Theodore Ts'o and 5 * PowerQuest, Inc. 6 * 7 * Copyright (C) 1999, 2000 by Theosore Ts'o 8 * 9 * %Begin-Header% 10 * This file may be redistributed under the terms of the GNU Public 11 * License. 12 * %End-Header% 13 */ 14 15 #include <stdio.h> 16 #include <string.h> 17 #ifdef HAVE_UNISTD_H 18 #include <unistd.h> 19 #endif 20 #include <stdlib.h> 21 #ifdef HAVE_SYS_TYPES_H 22 #include <sys/types.h> 23 #endif 24 #ifdef HAVE_SYS_TIME_H 25 #include <sys/time.h> 26 #endif 27 #if HAVE_ERRNO_H 28 #include <errno.h> 29 #endif 30 31 #if EXT2_FLAT_INCLUDES 32 #include "ext2_fs.h" 33 #include "ext2fs.h" 34 #include "e2p.h" 35 #else 36 #include "ext2fs/ext2_fs.h" 37 #include "ext2fs/ext2fs.h" 38 #include "e2p/e2p.h" 39 #endif 40 41 #ifdef ENABLE_NLS 42 #include <libintl.h> 43 #include <locale.h> 44 #define _(a) (gettext (a)) 45 #ifdef gettext_noop 46 #define N_(a) gettext_noop (a) 47 #else 48 #define N_(a) (a) 49 #endif 50 #ifndef NLS_CAT_NAME 51 #define NLS_CAT_NAME "e2fsprogs" 52 #endif 53 #ifndef LOCALEDIR 54 #define LOCALEDIR "/usr/share/locale" 55 #endif 56 #else 57 #define _(a) (a) 58 #define N_(a) a 59 #endif 60 61 62 /* 63 * For the extent map 64 */ 65 typedef struct _ext2_extent *ext2_extent; 66 67 /* 68 * For the simple progress meter 69 */ 70 typedef struct ext2_sim_progress *ext2_sim_progmeter; 71 72 /* 73 * Flags for the resizer; most are debugging flags only 74 */ 75 #define RESIZE_DEBUG_IO 0x0001 76 #define RESIZE_DEBUG_BMOVE 0x0002 77 #define RESIZE_DEBUG_INODEMAP 0x0004 78 #define RESIZE_DEBUG_ITABLEMOVE 0x0008 79 80 #define RESIZE_PERCENT_COMPLETE 0x0100 81 #define RESIZE_VERBOSE 0x0200 82 83 /* 84 * The core state structure for the ext2 resizer 85 */ 86 typedef struct ext2_resize_struct *ext2_resize_t; 87 88 struct ext2_resize_struct { 89 ext2_filsys old_fs; 90 ext2_filsys new_fs; 91 ext2fs_block_bitmap reserve_blocks; 92 ext2fs_block_bitmap move_blocks; 93 ext2_extent bmap; 94 ext2_extent imap; 95 int needed_blocks; 96 int flags; 97 char *itable_buf; 98 99 /* 100 * For the block allocator 101 */ 102 blk_t new_blk; 103 int alloc_state; 104 105 /* 106 * For the progress meter 107 */ 108 errcode_t (*progress)(ext2_resize_t rfs, int pass, 109 unsigned long cur, 110 unsigned long max); 111 void *prog_data; 112 }; 113 114 /* 115 * Progress pass numbers... 116 */ 117 #define E2_RSZ_EXTEND_ITABLE_PASS 1 118 #define E2_RSZ_BLOCK_RELOC_PASS 2 119 #define E2_RSZ_INODE_SCAN_PASS 3 120 #define E2_RSZ_INODE_REF_UPD_PASS 4 121 #define E2_RSZ_MOVE_ITABLE_PASS 5 122 123 124 /* prototypes */ 125 extern errcode_t resize_fs(ext2_filsys fs, blk_t *new_size, int flags, 126 errcode_t (*progress)(ext2_resize_t rfs, 127 int pass, unsigned long cur, 128 unsigned long max)); 129 130 extern errcode_t adjust_fs_info(ext2_filsys fs, ext2_filsys old_fs, 131 ext2fs_block_bitmap reserve_blocks, 132 blk_t new_size); 133 extern blk_t calculate_minimum_resize_size(ext2_filsys fs); 134 135 136 /* extent.c */ 137 extern errcode_t ext2fs_create_extent_table(ext2_extent *ret_extent, 138 int size); 139 extern void ext2fs_free_extent_table(ext2_extent extent); 140 extern errcode_t ext2fs_add_extent_entry(ext2_extent extent, 141 __u32 old_loc, __u32 new_loc); 142 extern __u32 ext2fs_extent_translate(ext2_extent extent, __u32 old_loc); 143 extern void ext2fs_extent_dump(ext2_extent extent, FILE *out); 144 extern errcode_t ext2fs_iterate_extent(ext2_extent extent, __u32 *old_loc, 145 __u32 *new_loc, int *size); 146 147 /* online.c */ 148 extern errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt, 149 blk_t *new_size, int flags); 150 151 /* sim_progress.c */ 152 extern errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog, 153 const char *label, 154 int labelwidth, int barwidth, 155 __u32 maxdone, int flags); 156 extern void ext2fs_progress_update(ext2_sim_progmeter prog, 157 __u32 current); 158 extern void ext2fs_progress_close(ext2_sim_progmeter prog); 159 160 161
