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 */ 65typedef struct _ext2_extent *ext2_extent; 66 67/* 68 * For the simple progress meter 69 */ 70typedef 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#define RESIZE_DEBUG_RTRACK 0x0010 80#define RESIZE_DEBUG_MIN_CALC 0x0020 81 82#define RESIZE_PERCENT_COMPLETE 0x0100 83#define RESIZE_VERBOSE 0x0200 84 85/* 86 * This structure is used for keeping track of how much resources have 87 * been used for a particular resize2fs pass. 88 */ 89struct resource_track { 90 const char *desc; 91 struct timeval time_start; 92 struct timeval user_start; 93 struct timeval system_start; 94 void *brk_start; 95 unsigned long long bytes_read; 96 unsigned long long bytes_written; 97}; 98 99/* 100 * The core state structure for the ext2 resizer 101 */ 102typedef struct ext2_resize_struct *ext2_resize_t; 103 104struct ext2_resize_struct { 105 ext2_filsys old_fs; 106 ext2_filsys new_fs; 107 ext2fs_block_bitmap reserve_blocks; 108 ext2fs_block_bitmap move_blocks; 109 ext2_extent bmap; 110 ext2_extent imap; 111 blk64_t needed_blocks; 112 int flags; 113 char *itable_buf; 114 115 /* 116 * For the block allocator 117 */ 118 blk64_t new_blk; 119 int alloc_state; 120 121 /* 122 * For the progress meter 123 */ 124 errcode_t (*progress)(ext2_resize_t rfs, int pass, 125 unsigned long cur, 126 unsigned long max); 127 void *prog_data; 128}; 129 130/* 131 * Progress pass numbers... 132 */ 133#define E2_RSZ_EXTEND_ITABLE_PASS 1 134#define E2_RSZ_BLOCK_RELOC_PASS 2 135#define E2_RSZ_INODE_SCAN_PASS 3 136#define E2_RSZ_INODE_REF_UPD_PASS 4 137#define E2_RSZ_MOVE_ITABLE_PASS 5 138 139 140/* prototypes */ 141extern errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags, 142 errcode_t (*progress)(ext2_resize_t rfs, 143 int pass, unsigned long cur, 144 unsigned long max)); 145 146extern errcode_t adjust_fs_info(ext2_filsys fs, ext2_filsys old_fs, 147 ext2fs_block_bitmap reserve_blocks, 148 blk64_t new_size); 149extern blk64_t calculate_minimum_resize_size(ext2_filsys fs, int flags); 150 151 152/* extent.c */ 153extern errcode_t ext2fs_create_extent_table(ext2_extent *ret_extent, 154 __u64 size); 155extern void ext2fs_free_extent_table(ext2_extent extent); 156extern errcode_t ext2fs_add_extent_entry(ext2_extent extent, 157 __u64 old_loc, __u64 new_loc); 158extern __u64 ext2fs_extent_translate(ext2_extent extent, __u64 old_loc); 159extern void ext2fs_extent_dump(ext2_extent extent, FILE *out); 160extern errcode_t ext2fs_iterate_extent(ext2_extent extent, __u64 *old_loc, 161 __u64 *new_loc, __u64 *size); 162 163/* main.c */ 164extern char *program_name; 165 166/* online.c */ 167extern errcode_t online_resize_fs(ext2_filsys fs, const char *mtpt, 168 blk64_t *new_size, int flags); 169 170/* resource_track.c */ 171extern void init_resource_track(struct resource_track *track, const char *desc, 172 io_channel channel); 173extern void print_resource_track(ext2_resize_t rfs, 174 struct resource_track *track, 175 io_channel channel); 176 177/* sim_progress.c */ 178extern errcode_t ext2fs_progress_init(ext2_sim_progmeter *ret_prog, 179 const char *label, 180 int labelwidth, int barwidth, 181 __u32 maxdone, int flags); 182extern void ext2fs_progress_update(ext2_sim_progmeter prog, 183 __u32 current); 184extern void ext2fs_progress_close(ext2_sim_progmeter prog); 185 186 187