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dc01088db5
e2fsprogs/misc/mke2fs.c
Marcus Huewe dc01088db5 mke2fs: fix filesystem size calculation, if an offset is specified 
If a filesystem size is explicitly specified, it should be used without
subtracting the offset.

Signed-off-by: Marcus Huewe <suse-tux@gmx.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2016-05-12 15:25:14 -04:00

3210 lines
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/*
* mke2fs.c - Make a ext2fs filesystem.
*
* Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
* 2003, 2004, 2005 by Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
/* Usage: mke2fs [options] device
*
* The device may be a block device or a image of one, but this isn't
* enforced (but it's not much fun on a character device :-).
*/
#define _XOPEN_SOURCE 600 /* for inclusion of PATH_MAX */
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <ctype.h>
#include <time.h>
#ifdef __linux__
#include <sys/utsname.h>
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#endif
#ifdef HAVE_GETOPT_H
#include <getopt.h>
#else
extern char *optarg;
extern int optind;
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <sys/ioctl.h>
#include <libgen.h>
#include <limits.h>
#include <blkid/blkid.h>
#include "ext2fs/ext2_fs.h"
#include "ext2fs/ext2fsP.h"
#include "uuid/uuid.h"
#include "util.h"
#include "support/nls-enable.h"
#include "support/plausible.h"
#include "support/profile.h"
#include "support/prof_err.h"
#include "../version.h"
#include "support/quotaio.h"
#include "mke2fs.h"
#include "create_inode.h"
#define STRIDE_LENGTH 8
#define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
#ifndef __sparc__
#define ZAP_BOOTBLOCK
#endif
#define DISCARD_STEP_MB (2048)
extern int isatty(int);
extern FILE *fpopen(const char *cmd, const char *mode);
const char * program_name = "mke2fs";
static const char * device_name /* = NULL */;
/* Command line options */
static int cflag;
int verbose;
int quiet;
static int super_only;
static int discard = 1; /* attempt to discard device before fs creation */
static int direct_io;
static int force;
static int noaction;
static int num_backups = 2; /* number of backup bg's for sparse_super2 */
static uid_t root_uid;
static gid_t root_gid;
int journal_size;
int journal_flags;
static int lazy_itable_init;
static int packed_meta_blocks;
static char *bad_blocks_filename = NULL;
static __u32 fs_stride;
/* Initialize usr/grp quotas by default */
static unsigned int quotatype_bits = (QUOTA_USR_BIT | QUOTA_GRP_BIT);
static __u64 offset;
static blk64_t journal_location = ~0LL;
static int proceed_delay = -1;
static blk64_t dev_size;
static struct ext2_super_block fs_param;
static char *fs_uuid = NULL;
static char *creator_os;
static char *volume_label;
static char *mount_dir;
char *journal_device;
static int sync_kludge; /* Set using the MKE2FS_SYNC env. option */
char **fs_types;
const char *src_root_dir; /* Copy files from the specified directory */
static char *undo_file;
static profile_t profile;
static int sys_page_size = 4096;
static int errors_behavior = 0;
static void usage(void)
{
fprintf(stderr, _("Usage: %s [-c|-l filename] [-b block-size] "
"[-C cluster-size]\n\t[-i bytes-per-inode] [-I inode-size] "
"[-J journal-options]\n"
"\t[-G flex-group-size] [-N number-of-inodes] "
"[-d root-directory]\n"
"\t[-m reserved-blocks-percentage] [-o creator-os]\n"
"\t[-g blocks-per-group] [-L volume-label] "
"[-M last-mounted-directory]\n\t[-O feature[,...]] "
"[-r fs-revision] [-E extended-option[,...]]\n"
"\t[-t fs-type] [-T usage-type ] [-U UUID] [-e errors_behavior]"
"[-z undo_file]\n"
"\t[-jnqvDFSV] device [blocks-count]\n"),
program_name);
exit(1);
}
static int int_log2(unsigned long long arg)
{
int l = 0;
arg >>= 1;
while (arg) {
l++;
arg >>= 1;
}
return l;
}
int int_log10(unsigned long long arg)
{
int l;
for (l=0; arg ; l++)
arg = arg / 10;
return l;
}
#ifdef __linux__
static int parse_version_number(const char *s)
{
int major, minor, rev;
char *endptr;
const char *cp = s;
if (!s)
return 0;
major = strtol(cp, &endptr, 10);
if (cp == endptr || *endptr != '.')
return 0;
cp = endptr + 1;
minor = strtol(cp, &endptr, 10);
if (cp == endptr || *endptr != '.')
return 0;
cp = endptr + 1;
rev = strtol(cp, &endptr, 10);
if (cp == endptr)
return 0;
return KERNEL_VERSION(major, minor, rev);
}
static int is_before_linux_ver(unsigned int major, unsigned int minor,
unsigned int rev)
{
struct utsname ut;
static int linux_version_code = -1;
if (uname(&ut)) {
perror("uname");
exit(1);
}
if (linux_version_code < 0)
linux_version_code = parse_version_number(ut.release);
if (linux_version_code == 0)
return 0;
return linux_version_code < (int) KERNEL_VERSION(major, minor, rev);
}
#else
static int is_before_linux_ver(unsigned int major, unsigned int minor,
unsigned int rev)
{
return 0;
}
#endif
/*
* Helper function for read_bb_file and test_disk
*/
static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
{
fprintf(stderr, _("Bad block %u out of range; ignored.\n"), blk);
return;
}
/*
* Reads the bad blocks list from a file
*/
static void read_bb_file(ext2_filsys fs, badblocks_list *bb_list,
const char *bad_blocks_file)
{
FILE *f;
errcode_t retval;
f = fopen(bad_blocks_file, "r");
if (!f) {
com_err("read_bad_blocks_file", errno,
_("while trying to open %s"), bad_blocks_file);
exit(1);
}
retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
fclose (f);
if (retval) {
com_err("ext2fs_read_bb_FILE", retval, "%s",
_("while reading in list of bad blocks from file"));
exit(1);
}
}
/*
* Runs the badblocks program to test the disk
*/
static void test_disk(ext2_filsys fs, badblocks_list *bb_list)
{
FILE *f;
errcode_t retval;
char buf[1024];
sprintf(buf, "badblocks -b %d -X %s%s%s %llu", fs->blocksize,
quiet ? "" : "-s ", (cflag > 1) ? "-w " : "",
fs->device_name, ext2fs_blocks_count(fs->super)-1);
if (verbose)
printf(_("Running command: %s\n"), buf);
f = popen(buf, "r");
if (!f) {
com_err("popen", errno,
_("while trying to run '%s'"), buf);
exit(1);
}
retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block);
pclose(f);
if (retval) {
com_err("ext2fs_read_bb_FILE", retval, "%s",
_("while processing list of bad blocks from program"));
exit(1);
}
}
static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list)
{
dgrp_t i;
blk_t j;
unsigned must_be_good;
blk_t blk;
badblocks_iterate bb_iter;
errcode_t retval;
blk_t group_block;
int group;
int group_bad;
if (!bb_list)
return;
/*
* The primary superblock and group descriptors *must* be
* good; if not, abort.
*/
must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks;
for (i = fs->super->s_first_data_block; i <= must_be_good; i++) {
if (ext2fs_badblocks_list_test(bb_list, i)) {
fprintf(stderr, _("Block %d in primary "
"superblock/group descriptor area bad.\n"), i);
fprintf(stderr, _("Blocks %u through %u must be good "
"in order to build a filesystem.\n"),
fs->super->s_first_data_block, must_be_good);
fputs(_("Aborting....\n"), stderr);
exit(1);
}
}
/*
* See if any of the bad blocks are showing up in the backup
* superblocks and/or group descriptors. If so, issue a
* warning and adjust the block counts appropriately.
*/
group_block = fs->super->s_first_data_block +
fs->super->s_blocks_per_group;
for (i = 1; i < fs->group_desc_count; i++) {
group_bad = 0;
for (j=0; j < fs->desc_blocks+1; j++) {
if (ext2fs_badblocks_list_test(bb_list,
group_block + j)) {
if (!group_bad)
fprintf(stderr,
_("Warning: the backup superblock/group descriptors at block %u contain\n"
" bad blocks.\n\n"),
group_block);
group_bad++;
group = ext2fs_group_of_blk2(fs, group_block+j);
ext2fs_bg_free_blocks_count_set(fs, group, ext2fs_bg_free_blocks_count(fs, group) + 1);
ext2fs_group_desc_csum_set(fs, group);
ext2fs_free_blocks_count_add(fs->super, 1);
}
}
group_block += fs->super->s_blocks_per_group;
}
/*
* Mark all the bad blocks as used...
*/
retval = ext2fs_badblocks_list_iterate_begin(bb_list, &bb_iter);
if (retval) {
com_err("ext2fs_badblocks_list_iterate_begin", retval, "%s",
_("while marking bad blocks as used"));
exit(1);
}
while (ext2fs_badblocks_list_iterate(bb_iter, &blk))
ext2fs_mark_block_bitmap2(fs->block_map, EXT2FS_B2C(fs, blk));
ext2fs_badblocks_list_iterate_end(bb_iter);
}
static void write_reserved_inodes(ext2_filsys fs)
{
errcode_t retval;
ext2_ino_t ino;
struct ext2_inode *inode;
retval = ext2fs_get_memzero(EXT2_INODE_SIZE(fs->super), &inode);
if (retval) {
com_err("inode_init", retval, _("while allocating memory"));
exit(1);
}
for (ino = 1; ino < EXT2_FIRST_INO(fs->super); ino++)
ext2fs_write_inode_full(fs, ino, inode,
EXT2_INODE_SIZE(fs->super));
ext2fs_free_mem(&inode);
}
static errcode_t packed_allocate_tables(ext2_filsys fs)
{
errcode_t retval;
dgrp_t i;
blk64_t goal = 0;
for (i = 0; i < fs->group_desc_count; i++) {
retval = ext2fs_new_block2(fs, goal, NULL, &goal);
if (retval)
return retval;
ext2fs_block_alloc_stats2(fs, goal, +1);
ext2fs_block_bitmap_loc_set(fs, i, goal);
}
for (i = 0; i < fs->group_desc_count; i++) {
retval = ext2fs_new_block2(fs, goal, NULL, &goal);
if (retval)
return retval;
ext2fs_block_alloc_stats2(fs, goal, +1);
ext2fs_inode_bitmap_loc_set(fs, i, goal);
}
for (i = 0; i < fs->group_desc_count; i++) {
blk64_t end = ext2fs_blocks_count(fs->super) - 1;
retval = ext2fs_get_free_blocks2(fs, goal, end,
fs->inode_blocks_per_group,
fs->block_map, &goal);
if (retval)
return retval;
ext2fs_block_alloc_stats_range(fs, goal,
fs->inode_blocks_per_group, +1);
ext2fs_inode_table_loc_set(fs, i, goal);
ext2fs_group_desc_csum_set(fs, i);
}
return 0;
}
static void write_inode_tables(ext2_filsys fs, int lazy_flag, int itable_zeroed)
{
errcode_t retval;
blk64_t blk;
dgrp_t i;
int num;
struct ext2fs_numeric_progress_struct progress;
ext2fs_numeric_progress_init(fs, &progress,
_("Writing inode tables: "),
fs->group_desc_count);
for (i = 0; i < fs->group_desc_count; i++) {
ext2fs_numeric_progress_update(fs, &progress, i);
blk = ext2fs_inode_table_loc(fs, i);
num = fs->inode_blocks_per_group;
if (lazy_flag)
num = ext2fs_div_ceil((fs->super->s_inodes_per_group -
ext2fs_bg_itable_unused(fs, i)) *
EXT2_INODE_SIZE(fs->super),
EXT2_BLOCK_SIZE(fs->super));
if (!lazy_flag || itable_zeroed) {
/* The kernel doesn't need to zero the itable blocks */
ext2fs_bg_flags_set(fs, i, EXT2_BG_INODE_ZEROED);
ext2fs_group_desc_csum_set(fs, i);
}
if (!itable_zeroed) {
retval = ext2fs_zero_blocks2(fs, blk, num, &blk, &num);
if (retval) {
fprintf(stderr, _("\nCould not write %d "
"blocks in inode table starting at %llu: %s\n"),
num, blk, error_message(retval));
exit(1);
}
}
if (sync_kludge) {
if (sync_kludge == 1)
sync();
else if ((i % sync_kludge) == 0)
sync();
}
}
ext2fs_numeric_progress_close(fs, &progress,
_("done \n"));
/* Reserved inodes must always have correct checksums */
if (fs->super->s_creator_os == EXT2_OS_LINUX &&
ext2fs_has_feature_metadata_csum(fs->super))
write_reserved_inodes(fs);
}
static void create_root_dir(ext2_filsys fs)
{
errcode_t retval;
struct ext2_inode inode;
retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0);
if (retval) {
com_err("ext2fs_mkdir", retval, "%s",
_("while creating root dir"));
exit(1);
}
if (root_uid != 0 || root_gid != 0) {
retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode);
if (retval) {
com_err("ext2fs_read_inode", retval, "%s",
_("while reading root inode"));
exit(1);
}
inode.i_uid = root_uid;
ext2fs_set_i_uid_high(inode, root_uid >> 16);
inode.i_gid = root_gid;
ext2fs_set_i_gid_high(inode, root_gid >> 16);
retval = ext2fs_write_new_inode(fs, EXT2_ROOT_INO, &inode);
if (retval) {
com_err("ext2fs_write_inode", retval, "%s",
_("while setting root inode ownership"));
exit(1);
}
}
}
static void create_lost_and_found(ext2_filsys fs)
{
unsigned int lpf_size = 0;
errcode_t retval;
ext2_ino_t ino;
const char *name = "lost+found";
int i;
fs->umask = 077;
retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name);
if (retval) {
com_err("ext2fs_mkdir", retval, "%s",
_("while creating /lost+found"));
exit(1);
}
retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino);
if (retval) {
com_err("ext2_lookup", retval, "%s",
_("while looking up /lost+found"));
exit(1);
}
for (i=1; i < EXT2_NDIR_BLOCKS; i++) {
/* Ensure that lost+found is at least 2 blocks, so we always
* test large empty blocks for big-block filesystems. */
if ((lpf_size += fs->blocksize) >= 16*1024 &&
lpf_size >= 2 * fs->blocksize)
break;
retval = ext2fs_expand_dir(fs, ino);
if (retval) {
com_err("ext2fs_expand_dir", retval, "%s",
_("while expanding /lost+found"));
exit(1);
}
}
}
static void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list)
{
errcode_t retval;
ext2fs_mark_inode_bitmap2(fs->inode_map, EXT2_BAD_INO);
ext2fs_inode_alloc_stats2(fs, EXT2_BAD_INO, +1, 0);
retval = ext2fs_update_bb_inode(fs, bb_list);
if (retval) {
com_err("ext2fs_update_bb_inode", retval, "%s",
_("while setting bad block inode"));
exit(1);
}
}
static void reserve_inodes(ext2_filsys fs)
{
ext2_ino_t i;
for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++)
ext2fs_inode_alloc_stats2(fs, i, +1, 0);
ext2fs_mark_ib_dirty(fs);
}
#define BSD_DISKMAGIC (0x82564557UL) /* The disk magic number */
#define BSD_MAGICDISK (0x57455682UL) /* The disk magic number reversed */
#define BSD_LABEL_OFFSET 64
static void zap_sector(ext2_filsys fs, int sect, int nsect)
{
char *buf;
int retval;
unsigned int *magic;
buf = malloc(512*nsect);
if (!buf) {
printf(_("Out of memory erasing sectors %d-%d\n"),
sect, sect + nsect - 1);
exit(1);
}
if (sect == 0) {
/* Check for a BSD disklabel, and don't erase it if so */
retval = io_channel_read_blk64(fs->io, 0, -512, buf);
if (retval)
fprintf(stderr,
_("Warning: could not read block 0: %s\n"),
error_message(retval));
else {
magic = (unsigned int *) (buf + BSD_LABEL_OFFSET);
if ((*magic == BSD_DISKMAGIC) ||
(*magic == BSD_MAGICDISK))
return;
}
}
memset(buf, 0, 512*nsect);
io_channel_set_blksize(fs->io, 512);
retval = io_channel_write_blk64(fs->io, sect, -512*nsect, buf);
io_channel_set_blksize(fs->io, fs->blocksize);
free(buf);
if (retval)
fprintf(stderr, _("Warning: could not erase sector %d: %s\n"),
sect, error_message(retval));
}
static void create_journal_dev(ext2_filsys fs)
{
struct ext2fs_numeric_progress_struct progress;
errcode_t retval;
char *buf;
blk64_t blk, err_blk;
int c, count, err_count;
retval = ext2fs_create_journal_superblock(fs,
ext2fs_blocks_count(fs->super), 0, &buf);
if (retval) {
com_err("create_journal_dev", retval, "%s",
_("while initializing journal superblock"));
exit(1);
}
if (journal_flags & EXT2_MKJOURNAL_LAZYINIT)
goto write_superblock;
ext2fs_numeric_progress_init(fs, &progress,
_("Zeroing journal device: "),
ext2fs_blocks_count(fs->super));
blk = 0;
count = ext2fs_blocks_count(fs->super);
while (count > 0) {
if (count > 1024)
c = 1024;
else
c = count;
retval = ext2fs_zero_blocks2(fs, blk, c, &err_blk, &err_count);
if (retval) {
com_err("create_journal_dev", retval,
_("while zeroing journal device "
"(block %llu, count %d)"),
err_blk, err_count);
exit(1);
}
blk += c;
count -= c;
ext2fs_numeric_progress_update(fs, &progress, blk);
}
ext2fs_numeric_progress_close(fs, &progress, NULL);
write_superblock:
retval = io_channel_write_blk64(fs->io,
fs->super->s_first_data_block+1,
1, buf);
if (retval) {
com_err("create_journal_dev", retval, "%s",
_("while writing journal superblock"));
exit(1);
}
}
static void show_stats(ext2_filsys fs)
{
struct ext2_super_block *s = fs->super;
char buf[80];
char *os;
blk64_t group_block;
dgrp_t i;
int need, col_left;
if (!verbose) {
printf(_("Creating filesystem with %llu %dk blocks and "
"%u inodes\n"),
ext2fs_blocks_count(s), fs->blocksize >> 10,
s->s_inodes_count);
goto skip_details;
}
if (ext2fs_blocks_count(&fs_param) != ext2fs_blocks_count(s))
fprintf(stderr, _("warning: %llu blocks unused.\n\n"),
ext2fs_blocks_count(&fs_param) - ext2fs_blocks_count(s));
memset(buf, 0, sizeof(buf));
strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name));
printf(_("Filesystem label=%s\n"), buf);
os = e2p_os2string(fs->super->s_creator_os);
if (os)
printf(_("OS type: %s\n"), os);
free(os);
printf(_("Block size=%u (log=%u)\n"), fs->blocksize,
s->s_log_block_size);
if (ext2fs_has_feature_bigalloc(fs->super))
printf(_("Cluster size=%u (log=%u)\n"),
fs->blocksize << fs->cluster_ratio_bits,
s->s_log_cluster_size);
else
printf(_("Fragment size=%u (log=%u)\n"), EXT2_CLUSTER_SIZE(s),
s->s_log_cluster_size);
printf(_("Stride=%u blocks, Stripe width=%u blocks\n"),
s->s_raid_stride, s->s_raid_stripe_width);
printf(_("%u inodes, %llu blocks\n"), s->s_inodes_count,
ext2fs_blocks_count(s));
printf(_("%llu blocks (%2.2f%%) reserved for the super user\n"),
ext2fs_r_blocks_count(s),
100.0 * ext2fs_r_blocks_count(s) / ext2fs_blocks_count(s));
printf(_("First data block=%u\n"), s->s_first_data_block);
if (root_uid != 0 || root_gid != 0)
printf(_("Root directory owner=%u:%u\n"), root_uid, root_gid);
if (s->s_reserved_gdt_blocks)
printf(_("Maximum filesystem blocks=%lu\n"),
(s->s_reserved_gdt_blocks + fs->desc_blocks) *
EXT2_DESC_PER_BLOCK(s) * s->s_blocks_per_group);
if (fs->group_desc_count > 1)
printf(_("%u block groups\n"), fs->group_desc_count);
else
printf(_("%u block group\n"), fs->group_desc_count);
if (ext2fs_has_feature_bigalloc(fs->super))
printf(_("%u blocks per group, %u clusters per group\n"),
s->s_blocks_per_group, s->s_clusters_per_group);
else
printf(_("%u blocks per group, %u fragments per group\n"),
s->s_blocks_per_group, s->s_clusters_per_group);
printf(_("%u inodes per group\n"), s->s_inodes_per_group);
skip_details:
if (fs->group_desc_count == 1) {
printf("\n");
return;
}
if (!e2p_is_null_uuid(s->s_uuid))
printf(_("Filesystem UUID: %s\n"), e2p_uuid2str(s->s_uuid));
printf("%s", _("Superblock backups stored on blocks: "));
group_block = s->s_first_data_block;
col_left = 0;
for (i = 1; i < fs->group_desc_count; i++) {
group_block += s->s_blocks_per_group;
if (!ext2fs_bg_has_super(fs, i))
continue;
if (i != 1)
printf(", ");
need = int_log10(group_block) + 2;
if (need > col_left) {
printf("\n\t");
col_left = 72;
}
col_left -= need;
printf("%llu", group_block);
}
printf("\n\n");
}
/*
* Returns true if making a file system for the Hurd, else 0
*/
static int for_hurd(const char *os)
{
if (!os) {
#ifdef __GNU__
return 1;
#else
return 0;
#endif
}
if (isdigit(*os))
return (atoi(os) == EXT2_OS_HURD);
return (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0);
}
/*
* Set the S_CREATOR_OS field. Return true if OS is known,
* otherwise, 0.
*/
static int set_os(struct ext2_super_block *sb, char *os)
{
if (isdigit (*os))
sb->s_creator_os = atoi (os);
else if (strcasecmp(os, "linux") == 0)
sb->s_creator_os = EXT2_OS_LINUX;
else if (strcasecmp(os, "GNU") == 0 || strcasecmp(os, "hurd") == 0)
sb->s_creator_os = EXT2_OS_HURD;
else if (strcasecmp(os, "freebsd") == 0)
sb->s_creator_os = EXT2_OS_FREEBSD;
else if (strcasecmp(os, "lites") == 0)
sb->s_creator_os = EXT2_OS_LITES;
else
return 0;
return 1;
}
#define PATH_SET "PATH=/sbin"
static void parse_extended_opts(struct ext2_super_block *param,
const char *opts)
{
char *buf, *token, *next, *p, *arg, *badopt = 0;
int len;
int r_usage = 0;
int ret;
len = strlen(opts);
buf = malloc(len+1);
if (!buf) {
fprintf(stderr, "%s",
_("Couldn't allocate memory to parse options!\n"));
exit(1);
}
strcpy(buf, opts);
for (token = buf; token && *token; token = next) {
p = strchr(token, ',');
next = 0;
if (p) {
*p = 0;
next = p+1;
}
arg = strchr(token, '=');
if (arg) {
*arg = 0;
arg++;
}
if (strcmp(token, "desc-size") == 0 ||
strcmp(token, "desc_size") == 0) {
int desc_size;
if (!ext2fs_has_feature_64bit(&fs_param)) {
fprintf(stderr,
_("%s requires '-O 64bit'\n"), token);
r_usage++;
continue;
}
if (param->s_reserved_gdt_blocks != 0) {
fprintf(stderr,
_("'%s' must be before 'resize=%u'\n"),
token, param->s_reserved_gdt_blocks);
r_usage++;
continue;
}
if (!arg) {
r_usage++;
badopt = token;
continue;
}
desc_size = strtoul(arg, &p, 0);
if (*p || (desc_size & (desc_size - 1))) {
fprintf(stderr,
_("Invalid desc_size: '%s'\n"), arg);
r_usage++;
continue;
}
param->s_desc_size = desc_size;
} else if (strcmp(token, "offset") == 0) {
if (!arg) {
r_usage++;
badopt = token;
continue;
}
offset = strtoull(arg, &p, 0);
if (*p) {
fprintf(stderr, _("Invalid offset: %s\n"),
arg);
r_usage++;
continue;
}
} else if (strcmp(token, "mmp_update_interval") == 0) {
if (!arg) {
r_usage++;
badopt = token;
continue;
}
param->s_mmp_update_interval = strtoul(arg, &p, 0);
if (*p) {
fprintf(stderr,
_("Invalid mmp_update_interval: %s\n"),
arg);
r_usage++;
continue;
}
} else if (strcmp(token, "num_backup_sb") == 0) {
if (!arg) {
r_usage++;
badopt = token;
continue;
}
num_backups = strtoul(arg, &p, 0);
if (*p || num_backups > 2) {
fprintf(stderr,
_("Invalid # of backup "
"superblocks: %s\n"),
arg);
r_usage++;
continue;
}
} else if (strcmp(token, "packed_meta_blocks") == 0) {
if (arg)
packed_meta_blocks = strtoul(arg, &p, 0);
else
packed_meta_blocks = 1;
if (packed_meta_blocks)
journal_location = 0;
} else if (strcmp(token, "stride") == 0) {
if (!arg) {
r_usage++;
badopt = token;
continue;
}
param->s_raid_stride = strtoul(arg, &p, 0);
if (*p) {
fprintf(stderr,
_("Invalid stride parameter: %s\n"),
arg);
r_usage++;
continue;
}
} else if (strcmp(token, "stripe-width") == 0 ||
strcmp(token, "stripe_width") == 0) {
if (!arg) {
r_usage++;
badopt = token;
continue;
}
param->s_raid_stripe_width = strtoul(arg, &p, 0);
if (*p) {
fprintf(stderr,
_("Invalid stripe-width parameter: %s\n"),
arg);
r_usage++;
continue;
}
} else if (!strcmp(token, "resize")) {
blk64_t resize;
unsigned long bpg, rsv_groups;
unsigned long group_desc_count, desc_blocks;
unsigned int gdpb, blocksize;
int rsv_gdb;
if (!arg) {
r_usage++;
badopt = token;
continue;
}
resize = parse_num_blocks2(arg,
param->s_log_block_size);
if (resize == 0) {
fprintf(stderr,
_("Invalid resize parameter: %s\n"),
arg);
r_usage++;
continue;
}
if (resize <= ext2fs_blocks_count(param)) {
fprintf(stderr, "%s",
_("The resize maximum must be greater "
"than the filesystem size.\n"));
r_usage++;
continue;
}
blocksize = EXT2_BLOCK_SIZE(param);
bpg = param->s_blocks_per_group;
if (!bpg)
bpg = blocksize * 8;
gdpb = EXT2_DESC_PER_BLOCK(param);
group_desc_count = (__u32) ext2fs_div64_ceil(
ext2fs_blocks_count(param), bpg);
desc_blocks = (group_desc_count +
gdpb - 1) / gdpb;
rsv_groups = ext2fs_div64_ceil(resize, bpg);
rsv_gdb = ext2fs_div_ceil(rsv_groups, gdpb) -
desc_blocks;
if (rsv_gdb > (int) EXT2_ADDR_PER_BLOCK(param))
rsv_gdb = EXT2_ADDR_PER_BLOCK(param);
if (rsv_gdb > 0) {
if (param->s_rev_level == EXT2_GOOD_OLD_REV) {
fprintf(stderr, "%s",
_("On-line resizing not supported with revision 0 filesystems\n"));
free(buf);
exit(1);
}
ext2fs_set_feature_resize_inode(param);
param->s_reserved_gdt_blocks = rsv_gdb;
}
} else if (!strcmp(token, "test_fs")) {
param->s_flags |= EXT2_FLAGS_TEST_FILESYS;
} else if (!strcmp(token, "lazy_itable_init")) {
if (arg)
lazy_itable_init = strtoul(arg, &p, 0);
else
lazy_itable_init = 1;
} else if (!strcmp(token, "lazy_journal_init")) {
if (arg)
journal_flags |= strtoul(arg, &p, 0) ?
EXT2_MKJOURNAL_LAZYINIT : 0;
else
journal_flags |= EXT2_MKJOURNAL_LAZYINIT;
} else if (!strcmp(token, "root_owner")) {
if (arg) {
root_uid = strtoul(arg, &p, 0);
if (*p != ':') {
fprintf(stderr,
_("Invalid root_owner: '%s'\n"),
arg);
r_usage++;
continue;
}
p++;
root_gid = strtoul(p, &p, 0);
if (*p) {
fprintf(stderr,
_("Invalid root_owner: '%s'\n"),
arg);
r_usage++;
continue;
}
} else {
root_uid = getuid();
root_gid = getgid();
}
} else if (!strcmp(token, "discard")) {
discard = 1;
} else if (!strcmp(token, "nodiscard")) {
discard = 0;
} else if (!strcmp(token, "quotatype")) {
char *errtok = NULL;
if (!arg) {
r_usage++;
badopt = token;
continue;
}
quotatype_bits = 0;
ret = parse_quota_types(arg, &quotatype_bits, &errtok);
if (ret) {
if (errtok)
fprintf(stderr,
"Failed to parse quota type at %s", errtok);
else
com_err(program_name, ret,
"while parsing quota type");
r_usage++;
badopt = token;
continue;
}
} else {
r_usage++;
badopt = token;
}
}
if (r_usage) {
fprintf(stderr, _("\nBad option(s) specified: %s\n\n"
"Extended options are separated by commas, "
"and may take an argument which\n"
"\tis set off by an equals ('=') sign.\n\n"
"Valid extended options are:\n"
"\tmmp_update_interval=<interval>\n"
"\tnum_backup_sb=<0|1|2>\n"
"\tstride=<RAID per-disk data chunk in blocks>\n"
"\tstripe-width=<RAID stride * data disks in blocks>\n"
"\toffset=<offset to create the file system>\n"
"\tresize=<resize maximum size in blocks>\n"
"\tpacked_meta_blocks=<0 to disable, 1 to enable>\n"
"\tlazy_itable_init=<0 to disable, 1 to enable>\n"
"\tlazy_journal_init=<0 to disable, 1 to enable>\n"
"\troot_owner=<uid of root dir>:<gid of root dir>\n"
"\ttest_fs\n"
"\tdiscard\n"
"\tnodiscard\n"
"\tquotatype=<quota type(s) to be enabled>\n\n"),
badopt ? badopt : "");
free(buf);
exit(1);
}
if (param->s_raid_stride &&
(param->s_raid_stripe_width % param->s_raid_stride) != 0)
fprintf(stderr, _("\nWarning: RAID stripe-width %u not an even "
"multiple of stride %u.\n\n"),
param->s_raid_stripe_width, param->s_raid_stride);
free(buf);
}
static __u32 ok_features[3] = {
/* Compat */
EXT3_FEATURE_COMPAT_HAS_JOURNAL |
EXT2_FEATURE_COMPAT_RESIZE_INODE |
EXT2_FEATURE_COMPAT_DIR_INDEX |
EXT2_FEATURE_COMPAT_EXT_ATTR |
EXT4_FEATURE_COMPAT_SPARSE_SUPER2,
/* Incompat */
EXT2_FEATURE_INCOMPAT_FILETYPE|
EXT3_FEATURE_INCOMPAT_EXTENTS|
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV|
EXT2_FEATURE_INCOMPAT_META_BG|
EXT4_FEATURE_INCOMPAT_FLEX_BG|
EXT4_FEATURE_INCOMPAT_MMP |
EXT4_FEATURE_INCOMPAT_64BIT|
EXT4_FEATURE_INCOMPAT_INLINE_DATA|
EXT4_FEATURE_INCOMPAT_ENCRYPT |
EXT4_FEATURE_INCOMPAT_CSUM_SEED,
/* R/O compat */
EXT2_FEATURE_RO_COMPAT_LARGE_FILE|
EXT4_FEATURE_RO_COMPAT_HUGE_FILE|
EXT4_FEATURE_RO_COMPAT_DIR_NLINK|
EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE|
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER|
EXT4_FEATURE_RO_COMPAT_GDT_CSUM|
EXT4_FEATURE_RO_COMPAT_BIGALLOC|
EXT4_FEATURE_RO_COMPAT_QUOTA|
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|
EXT4_FEATURE_RO_COMPAT_PROJECT
};
static void syntax_err_report(const char *filename, long err, int line_num)
{
fprintf(stderr,
_("Syntax error in mke2fs config file (%s, line #%d)\n\t%s\n"),
filename, line_num, error_message(err));
exit(1);
}
static const char *config_fn[] = { ROOT_SYSCONFDIR "/mke2fs.conf", 0 };
static void edit_feature(const char *str, __u32 *compat_array)
{
if (!str)
return;
if (e2p_edit_feature(str, compat_array, ok_features)) {
fprintf(stderr, _("Invalid filesystem option set: %s\n"),
str);
exit(1);
}
}
static void edit_mntopts(const char *str, __u32 *mntopts)
{
if (!str)
return;
if (e2p_edit_mntopts(str, mntopts, ~0)) {
fprintf(stderr, _("Invalid mount option set: %s\n"),
str);
exit(1);
}
}
struct str_list {
char **list;
int num;
int max;
};
static errcode_t init_list(struct str_list *sl)
{
sl->num = 0;
sl->max = 0;
sl->list = malloc((sl->max+1) * sizeof(char *));
if (!sl->list)
return ENOMEM;
sl->list[0] = 0;
return 0;
}
static errcode_t push_string(struct str_list *sl, const char *str)
{
char **new_list;
if (sl->num >= sl->max) {
sl->max += 2;
new_list = realloc(sl->list, (sl->max+1) * sizeof(char *));
if (!new_list)
return ENOMEM;
sl->list = new_list;
}
sl->list[sl->num] = malloc(strlen(str)+1);
if (sl->list[sl->num] == 0)
return ENOMEM;
strcpy(sl->list[sl->num], str);
sl->num++;
sl->list[sl->num] = 0;
return 0;
}
static void print_str_list(char **list)
{
char **cpp;
for (cpp = list; *cpp; cpp++) {
printf("'%s'", *cpp);
if (cpp[1])
fputs(", ", stdout);
}
fputc('\n', stdout);
}
/*
* Return TRUE if the profile has the given subsection
*/
static int profile_has_subsection(profile_t prof, const char *section,
const char *subsection)
{
void *state;
const char *names[4];
char *name;
int ret = 0;
names[0] = section;
names[1] = subsection;
names[2] = 0;
if (profile_iterator_create(prof, names,
PROFILE_ITER_LIST_SECTION |
PROFILE_ITER_RELATIONS_ONLY, &state))
return 0;
if ((profile_iterator(&state, &name, 0) == 0) && name) {
free(name);
ret = 1;
}
profile_iterator_free(&state);
return ret;
}
static char **parse_fs_type(const char *fs_type,
const char *usage_types,
struct ext2_super_block *sb,
blk64_t fs_blocks_count,
char *progname)
{
const char *ext_type = 0;
char *parse_str;
char *profile_type = 0;
char *cp, *t;
const char *size_type;
struct str_list list;
unsigned long long meg;
int is_hurd = for_hurd(creator_os);
if (init_list(&list))
return 0;
if (fs_type)
ext_type = fs_type;
else if (is_hurd)
ext_type = "ext2";
else if (!strcmp(program_name, "mke3fs"))
ext_type = "ext3";
else if (!strcmp(program_name, "mke4fs"))
ext_type = "ext4";
else if (progname) {
ext_type = strrchr(progname, '/');
if (ext_type)
ext_type++;
else
ext_type = progname;
if (!strncmp(ext_type, "mkfs.", 5)) {
ext_type += 5;
if (ext_type[0] == 0)
ext_type = 0;
} else
ext_type = 0;
}
if (!ext_type) {
profile_get_string(profile, "defaults", "fs_type", 0,
"ext2", &profile_type);
ext_type = profile_type;
if (!strcmp(ext_type, "ext2") && (journal_size != 0))
ext_type = "ext3";
}
if (!profile_has_subsection(profile, "fs_types", ext_type) &&
strcmp(ext_type, "ext2")) {
printf(_("\nYour mke2fs.conf file does not define the "
"%s filesystem type.\n"), ext_type);
if (!strcmp(ext_type, "ext3") || !strcmp(ext_type, "ext4") ||
!strcmp(ext_type, "ext4dev")) {
printf("%s", _("You probably need to install an "
"updated mke2fs.conf file.\n\n"));
}
if (!force) {
printf("%s", _("Aborting...\n"));
exit(1);
}
}
meg = (1024 * 1024) / EXT2_BLOCK_SIZE(sb);
if (fs_blocks_count < 3 * meg)
size_type = "floppy";
else if (fs_blocks_count < 512 * meg)
size_type = "small";
else if (fs_blocks_count < 4 * 1024 * 1024 * meg)
size_type = "default";
else if (fs_blocks_count < 16 * 1024 * 1024 * meg)
size_type = "big";
else
size_type = "huge";
if (!usage_types)
usage_types = size_type;
parse_str = malloc(strlen(usage_types)+1);
if (!parse_str) {
free(profile_type);
free(list.list);
return 0;
}
strcpy(parse_str, usage_types);
if (ext_type)
push_string(&list, ext_type);
cp = parse_str;
while (1) {
t = strchr(cp, ',');
if (t)
*t = '\0';
if (*cp) {
if (profile_has_subsection(profile, "fs_types", cp))
push_string(&list, cp);
else if (strcmp(cp, "default") != 0)
fprintf(stderr,
_("\nWarning: the fs_type %s is not "
"defined in mke2fs.conf\n\n"),
cp);
}
if (t)
cp = t+1;
else
break;
}
free(parse_str);
free(profile_type);
if (is_hurd)
push_string(&list, "hurd");
return (list.list);
}
char *get_string_from_profile(char **types, const char *opt,
const char *def_val)
{
char *ret = 0;
int i;
for (i=0; types[i]; i++);
for (i-=1; i >=0 ; i--) {
profile_get_string(profile, "fs_types", types[i],
opt, 0, &ret);
if (ret)
return ret;
}
profile_get_string(profile, "defaults", opt, 0, def_val, &ret);
return (ret);
}
int get_int_from_profile(char **types, const char *opt, int def_val)
{
int ret;
char **cpp;
profile_get_integer(profile, "defaults", opt, 0, def_val, &ret);
for (cpp = types; *cpp; cpp++)
profile_get_integer(profile, "fs_types", *cpp, opt, ret, &ret);
return ret;
}
static unsigned int get_uint_from_profile(char **types, const char *opt,
unsigned int def_val)
{
unsigned int ret;
char **cpp;
profile_get_uint(profile, "defaults", opt, 0, def_val, &ret);
for (cpp = types; *cpp; cpp++)
profile_get_uint(profile, "fs_types", *cpp, opt, ret, &ret);
return ret;
}
static double get_double_from_profile(char **types, const char *opt,
double def_val)
{
double ret;
char **cpp;
profile_get_double(profile, "defaults", opt, 0, def_val, &ret);
for (cpp = types; *cpp; cpp++)
profile_get_double(profile, "fs_types", *cpp, opt, ret, &ret);
return ret;
}
int get_bool_from_profile(char **types, const char *opt, int def_val)
{
int ret;
char **cpp;
profile_get_boolean(profile, "defaults", opt, 0, def_val, &ret);
for (cpp = types; *cpp; cpp++)
profile_get_boolean(profile, "fs_types", *cpp, opt, ret, &ret);
return ret;
}
extern const char *mke2fs_default_profile;
static const char *default_files[] = { "<default>", 0 };
#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
/*
* Sets the geometry of a device (stripe/stride), and returns the
* device's alignment offset, if any, or a negative error.
*/
static int get_device_geometry(const char *file,
struct ext2_super_block *param,
unsigned int psector_size)
{
int rc = -1;
unsigned int blocksize;
blkid_probe pr;
blkid_topology tp;
unsigned long min_io;
unsigned long opt_io;
struct stat statbuf;
/* Nothing to do for a regular file */
if (!stat(file, &statbuf) && S_ISREG(statbuf.st_mode))
return 0;
pr = blkid_new_probe_from_filename(file);
if (!pr)
goto out;
tp = blkid_probe_get_topology(pr);
if (!tp)
goto out;
min_io = blkid_topology_get_minimum_io_size(tp);
opt_io = blkid_topology_get_optimal_io_size(tp);
blocksize = EXT2_BLOCK_SIZE(param);
if ((min_io == 0) && (psector_size > blocksize))
min_io = psector_size;
if ((opt_io == 0) && min_io)
opt_io = min_io;
if ((opt_io == 0) && (psector_size > blocksize))
opt_io = psector_size;
/* setting stripe/stride to blocksize is pointless */
if (min_io > blocksize)
param->s_raid_stride = min_io / blocksize;
if (opt_io > blocksize)
param->s_raid_stripe_width = opt_io / blocksize;
rc = blkid_topology_get_alignment_offset(tp);
out:
blkid_free_probe(pr);
return rc;
}
#endif
static void PRS(int argc, char *argv[])
{
int b, c, flags;
int cluster_size = 0;
char *tmp, **cpp;
int explicit_fssize = 0;
int blocksize = 0;
int inode_ratio = 0;
int inode_size = 0;
unsigned long flex_bg_size = 0;
double reserved_ratio = -1.0;
int lsector_size = 0, psector_size = 0;
int show_version_only = 0, is_device = 0;
unsigned long long num_inodes = 0; /* unsigned long long to catch too-large input */
errcode_t retval;
char * oldpath = getenv("PATH");
char * extended_opts = 0;
char * fs_type = 0;
char * usage_types = 0;
/*
* NOTE: A few words about fs_blocks_count and blocksize:
*
* Initially, blocksize is set to zero, which implies 1024.
* If -b is specified, blocksize is updated to the user's value.
*
* Next, the device size or the user's "blocks" command line argument
* is used to set fs_blocks_count; the units are blocksize.
*
* Later, if blocksize hasn't been set and the profile specifies a
* blocksize, then blocksize is updated and fs_blocks_count is scaled
* appropriately. Note the change in units!
*
* Finally, we complain about fs_blocks_count > 2^32 on a non-64bit fs.
*/
blk64_t fs_blocks_count = 0;
long sysval;
int s_opt = -1, r_opt = -1;
char *fs_features = 0;
int fs_features_size = 0;
int use_bsize;
char *newpath;
int pathlen = sizeof(PATH_SET) + 1;
if (oldpath)
pathlen += strlen(oldpath);
newpath = malloc(pathlen);
if (!newpath) {
fprintf(stderr, "%s",
_("Couldn't allocate memory for new PATH.\n"));
exit(1);
}
strcpy(newpath, PATH_SET);
/* Update our PATH to include /sbin */
if (oldpath) {
strcat (newpath, ":");
strcat (newpath, oldpath);
}
putenv (newpath);
tmp = getenv("MKE2FS_SYNC");
if (tmp)
sync_kludge = atoi(tmp);
/* Determine the system page size if possible */
#ifdef HAVE_SYSCONF
#if (!defined(_SC_PAGESIZE) && defined(_SC_PAGE_SIZE))
#define _SC_PAGESIZE _SC_PAGE_SIZE
#endif
#ifdef _SC_PAGESIZE
sysval = sysconf(_SC_PAGESIZE);
if (sysval > 0)
sys_page_size = sysval;
#endif /* _SC_PAGESIZE */
#endif /* HAVE_SYSCONF */
if ((tmp = getenv("MKE2FS_CONFIG")) != NULL)
config_fn[0] = tmp;
profile_set_syntax_err_cb(syntax_err_report);
retval = profile_init(config_fn, &profile);
if (retval == ENOENT) {
retval = profile_init(default_files, &profile);
if (retval)
goto profile_error;
retval = profile_set_default(profile, mke2fs_default_profile);
if (retval)
goto profile_error;
} else if (retval) {
profile_error:
fprintf(stderr, _("Couldn't init profile successfully"
" (error: %ld).\n"), retval);
exit(1);
}
setbuf(stdout, NULL);
setbuf(stderr, NULL);
add_error_table(&et_ext2_error_table);
add_error_table(&et_prof_error_table);
memset(&fs_param, 0, sizeof(struct ext2_super_block));
fs_param.s_rev_level = 1; /* Create revision 1 filesystems now */
if (is_before_linux_ver(2, 2, 0))
fs_param.s_rev_level = 0;
if (argc && *argv) {
program_name = get_progname(*argv);
/* If called as mkfs.ext3, create a journal inode */
if (!strcmp(program_name, "mkfs.ext3") ||
!strcmp(program_name, "mke3fs"))
journal_size = -1;
}
while ((c = getopt (argc, argv,
"b:cd:e:g:i:jl:m:no:qr:s:t:vC:DE:FG:I:J:KL:M:N:O:R:ST:U:Vz:")) != EOF) {
switch (c) {
case 'b':
blocksize = parse_num_blocks2(optarg, -1);
b = (blocksize > 0) ? blocksize : -blocksize;
if (b < EXT2_MIN_BLOCK_SIZE ||
b > EXT2_MAX_BLOCK_SIZE) {
com_err(program_name, 0,
_("invalid block size - %s"), optarg);
exit(1);
}
if (blocksize > 4096)
fprintf(stderr, _("Warning: blocksize %d not "
"usable on most systems.\n"),
blocksize);
if (blocksize > 0)
fs_param.s_log_block_size =
int_log2(blocksize >>
EXT2_MIN_BLOCK_LOG_SIZE);
break;
case 'c': /* Check for bad blocks */
cflag++;
break;
case 'C':
cluster_size = parse_num_blocks2(optarg, -1);
if (cluster_size <= EXT2_MIN_CLUSTER_SIZE ||
cluster_size > EXT2_MAX_CLUSTER_SIZE) {
com_err(program_name, 0,
_("invalid cluster size - %s"),
optarg);
exit(1);
}
break;
case 'd':
src_root_dir = optarg;
break;
case 'D':
direct_io = 1;
break;
case 'R':
com_err(program_name, 0, "%s",
_("'-R' is deprecated, use '-E' instead"));
/* fallthrough */
case 'E':
extended_opts = optarg;
break;
case 'e':
if (strcmp(optarg, "continue") == 0)
errors_behavior = EXT2_ERRORS_CONTINUE;
else if (strcmp(optarg, "remount-ro") == 0)
errors_behavior = EXT2_ERRORS_RO;
else if (strcmp(optarg, "panic") == 0)
errors_behavior = EXT2_ERRORS_PANIC;
else {
com_err(program_name, 0,
_("bad error behavior - %s"),
optarg);
usage();
}
break;
case 'F':
force++;
break;
case 'g':
fs_param.s_blocks_per_group = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0, "%s",
_("Illegal number for blocks per group"));
exit(1);
}
if ((fs_param.s_blocks_per_group % 8) != 0) {
com_err(program_name, 0, "%s",
_("blocks per group must be multiple of 8"));
exit(1);
}
break;
case 'G':
flex_bg_size = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0, "%s",
_("Illegal number for flex_bg size"));
exit(1);
}
if (flex_bg_size < 1 ||
(flex_bg_size & (flex_bg_size-1)) != 0) {
com_err(program_name, 0, "%s",
_("flex_bg size must be a power of 2"));
exit(1);
}
if (flex_bg_size > MAX_32_NUM) {
com_err(program_name, 0,
_("flex_bg size (%lu) must be less than"
" or equal to 2^31"), flex_bg_size);
exit(1);
}
break;
case 'i':
inode_ratio = parse_num_blocks(optarg, -1);
if (inode_ratio < EXT2_MIN_BLOCK_SIZE ||
inode_ratio > EXT2_MAX_BLOCK_SIZE * 1024) {
com_err(program_name, 0,
_("invalid inode ratio %s (min %d/max %d)"),
optarg, EXT2_MIN_BLOCK_SIZE,
EXT2_MAX_BLOCK_SIZE * 1024);
exit(1);
}
break;
case 'I':
inode_size = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("invalid inode size - %s"), optarg);
exit(1);
}
break;
case 'j':
if (!journal_size)
journal_size = -1;
break;
case 'J':
parse_journal_opts(optarg);
break;
case 'K':
fprintf(stderr, "%s",
_("Warning: -K option is deprecated and "
"should not be used anymore. Use "
"\'-E nodiscard\' extended option "
"instead!\n"));
discard = 0;
break;
case 'l':
bad_blocks_filename = realloc(bad_blocks_filename,
strlen(optarg) + 1);
if (!bad_blocks_filename) {
com_err(program_name, ENOMEM, "%s",
_("in malloc for bad_blocks_filename"));
exit(1);
}
strcpy(bad_blocks_filename, optarg);
break;
case 'L':
volume_label = optarg;
break;
case 'm':
reserved_ratio = strtod(optarg, &tmp);
if ( *tmp || reserved_ratio > 50 ||
reserved_ratio < 0) {
com_err(program_name, 0,
_("invalid reserved blocks percent - %s"),
optarg);
exit(1);
}
break;
case 'M':
mount_dir = optarg;
break;
case 'n':
noaction++;
break;
case 'N':
num_inodes = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("bad num inodes - %s"), optarg);
exit(1);
}
break;
case 'o':
creator_os = optarg;
break;
case 'O':
retval = ext2fs_resize_mem(fs_features_size,
fs_features_size + 1 + strlen(optarg),
&fs_features);
if (retval) {
com_err(program_name, retval,
_("while allocating fs_feature string"));
exit(1);
}
if (fs_features_size)
strcat(fs_features, ",");
else
fs_features[0] = 0;
strcat(fs_features, optarg);
fs_features_size += 1 + strlen(optarg);
break;
case 'q':
quiet = 1;
break;
case 'r':
r_opt = strtoul(optarg, &tmp, 0);
if (*tmp) {
com_err(program_name, 0,
_("bad revision level - %s"), optarg);
exit(1);
}
if (r_opt > EXT2_MAX_SUPP_REV) {
com_err(program_name, EXT2_ET_REV_TOO_HIGH,
_("while trying to create revision %d"), r_opt);
exit(1);
}
fs_param.s_rev_level = r_opt;
break;
case 's': /* deprecated */
s_opt = atoi(optarg);
break;
case 'S':
super_only = 1;
break;
case 't':
if (fs_type) {
com_err(program_name, 0, "%s",
_("The -t option may only be used once"));
exit(1);
}
fs_type = strdup(optarg);
break;
case 'T':
if (usage_types) {
com_err(program_name, 0, "%s",
_("The -T option may only be used once"));
exit(1);
}
usage_types = strdup(optarg);
break;
case 'U':
fs_uuid = optarg;
break;
case 'v':
verbose = 1;
break;
case 'V':
/* Print version number and exit */
show_version_only++;
break;
case 'z':
undo_file = optarg;
break;
default:
usage();
}
}
if ((optind == argc) && !show_version_only)
usage();
device_name = argv[optind++];
if (!quiet || show_version_only)
fprintf (stderr, "mke2fs %s (%s)\n", E2FSPROGS_VERSION,
E2FSPROGS_DATE);
if (show_version_only) {
fprintf(stderr, _("\tUsing %s\n"),
error_message(EXT2_ET_BASE));
exit(0);
}
/*
* If there's no blocksize specified and there is a journal
* device, use it to figure out the blocksize
*/
if (blocksize <= 0 && journal_device) {
ext2_filsys jfs;
io_manager io_ptr;
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
retval = ext2fs_open(journal_device,
EXT2_FLAG_JOURNAL_DEV_OK, 0,
0, io_ptr, &jfs);
if (retval) {
com_err(program_name, retval,
_("while trying to open journal device %s\n"),
journal_device);
exit(1);
}
if ((blocksize < 0) && (jfs->blocksize < (unsigned) (-blocksize))) {
com_err(program_name, 0,
_("Journal dev blocksize (%d) smaller than "
"minimum blocksize %d\n"), jfs->blocksize,
-blocksize);
exit(1);
}
blocksize = jfs->blocksize;
printf(_("Using journal device's blocksize: %d\n"), blocksize);
fs_param.s_log_block_size =
int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
ext2fs_close_free(&jfs);
}
if (optind < argc) {
fs_blocks_count = parse_num_blocks2(argv[optind++],
fs_param.s_log_block_size);
if (!fs_blocks_count) {
com_err(program_name, 0,
_("invalid blocks '%s' on device '%s'"),
argv[optind - 1], device_name);
exit(1);
}
}
if (optind < argc)
usage();
profile_get_integer(profile, "options", "proceed_delay", 0, 0,
&proceed_delay);
/* The isatty() test is so we don't break existing scripts */
flags = CREATE_FILE;
if (isatty(0) && isatty(1) && !offset)
flags |= CHECK_FS_EXIST;
if (!quiet)
flags |= VERBOSE_CREATE;
if (fs_blocks_count == 0)
flags |= NO_SIZE;
else
explicit_fssize = 1;
if (!check_plausibility(device_name, flags, &is_device) && !force)
proceed_question(proceed_delay);
check_mount(device_name, force, _("filesystem"));
/* Determine the size of the device (if possible) */
if (noaction && fs_blocks_count) {
dev_size = fs_blocks_count;
retval = 0;
} else
retval = ext2fs_get_device_size2(device_name,
EXT2_BLOCK_SIZE(&fs_param),
&dev_size);
if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) {
com_err(program_name, retval, "%s",
_("while trying to determine filesystem size"));
exit(1);
}
if (!fs_blocks_count) {
if (retval == EXT2_ET_UNIMPLEMENTED) {
com_err(program_name, 0, "%s",
_("Couldn't determine device size; you "
"must specify\nthe size of the "
"filesystem\n"));
exit(1);
} else {
if (dev_size == 0) {
com_err(program_name, 0, "%s",
_("Device size reported to be zero. "
"Invalid partition specified, or\n\t"
"partition table wasn't reread "
"after running fdisk, due to\n\t"
"a modified partition being busy "
"and in use. You may need to reboot\n\t"
"to re-read your partition table.\n"
));
exit(1);
}
fs_blocks_count = dev_size;
if (sys_page_size > EXT2_BLOCK_SIZE(&fs_param))
fs_blocks_count &= ~((blk64_t) ((sys_page_size /
EXT2_BLOCK_SIZE(&fs_param))-1));
}
} else if (!force && is_device && (fs_blocks_count > dev_size)) {
com_err(program_name, 0, "%s",
_("Filesystem larger than apparent device size."));
proceed_question(proceed_delay);
}
if (!fs_type)
profile_get_string(profile, "devices", device_name,
"fs_type", 0, &fs_type);
if (!usage_types)
profile_get_string(profile, "devices", device_name,
"usage_types", 0, &usage_types);
/*
* We have the file system (or device) size, so we can now
* determine the appropriate file system types so the fs can
* be appropriately configured.
*/
fs_types = parse_fs_type(fs_type, usage_types, &fs_param,
fs_blocks_count ? fs_blocks_count : dev_size,
argv[0]);
if (!fs_types) {
fprintf(stderr, "%s", _("Failed to parse fs types list\n"));
exit(1);
}
/* Figure out what features should be enabled */
tmp = NULL;
if (fs_param.s_rev_level != EXT2_GOOD_OLD_REV) {
tmp = get_string_from_profile(fs_types, "base_features",
"sparse_super,large_file,filetype,resize_inode,dir_index");
edit_feature(tmp, &fs_param.s_feature_compat);
free(tmp);
/* And which mount options as well */
tmp = get_string_from_profile(fs_types, "default_mntopts",
"acl,user_xattr");
edit_mntopts(tmp, &fs_param.s_default_mount_opts);
if (tmp)
free(tmp);
for (cpp = fs_types; *cpp; cpp++) {
tmp = NULL;
profile_get_string(profile, "fs_types", *cpp,
"features", "", &tmp);
if (tmp && *tmp)
edit_feature(tmp, &fs_param.s_feature_compat);
if (tmp)
free(tmp);
}
tmp = get_string_from_profile(fs_types, "default_features",
"");
}
/* Mask off features which aren't supported by the Hurd */
if (for_hurd(creator_os)) {
ext2fs_clear_feature_filetype(&fs_param);
ext2fs_clear_feature_huge_file(&fs_param);
ext2fs_clear_feature_metadata_csum(&fs_param);
}
edit_feature(fs_features ? fs_features : tmp,
&fs_param.s_feature_compat);
if (tmp)
free(tmp);
(void) ext2fs_free_mem(&fs_features);
/*
* If the user specified features incompatible with the Hurd, complain
*/
if (for_hurd(creator_os)) {
if (ext2fs_has_feature_filetype(&fs_param)) {
fprintf(stderr, "%s", _("The HURD does not support the "
"filetype feature.\n"));
exit(1);
}
if (ext2fs_has_feature_huge_file(&fs_param)) {
fprintf(stderr, "%s", _("The HURD does not support the "
"huge_file feature.\n"));
exit(1);
}
if (ext2fs_has_feature_metadata_csum(&fs_param)) {
fprintf(stderr, "%s", _("The HURD does not support the "
"metadata_csum feature.\n"));
exit(1);
}
}
/* Get the hardware sector sizes, if available */
retval = ext2fs_get_device_sectsize(device_name, &lsector_size);
if (retval) {
com_err(program_name, retval, "%s",
_("while trying to determine hardware sector size"));
exit(1);
}
retval = ext2fs_get_device_phys_sectsize(device_name, &psector_size);
if (retval) {
com_err(program_name, retval, "%s",
_("while trying to determine physical sector size"));
exit(1);
}
tmp = getenv("MKE2FS_DEVICE_SECTSIZE");
if (tmp != NULL)
lsector_size = atoi(tmp);
tmp = getenv("MKE2FS_DEVICE_PHYS_SECTSIZE");
if (tmp != NULL)
psector_size = atoi(tmp);
/* Older kernels may not have physical/logical distinction */
if (!psector_size)
psector_size = lsector_size;
if (blocksize <= 0) {
use_bsize = get_int_from_profile(fs_types, "blocksize", 4096);
if (use_bsize == -1) {
use_bsize = sys_page_size;
if (is_before_linux_ver(2, 6, 0) && use_bsize > 4096)
use_bsize = 4096;
}
if (lsector_size && use_bsize < lsector_size)
use_bsize = lsector_size;
if ((blocksize < 0) && (use_bsize < (-blocksize)))
use_bsize = -blocksize;
blocksize = use_bsize;
fs_blocks_count /= (blocksize / 1024);
} else {
if (blocksize < lsector_size) { /* Impossible */
com_err(program_name, EINVAL, "%s",
_("while setting blocksize; too small "
"for device\n"));
exit(1);
} else if ((blocksize < psector_size) &&
(psector_size <= sys_page_size)) { /* Suboptimal */
fprintf(stderr, _("Warning: specified blocksize %d is "
"less than device physical sectorsize %d\n"),
blocksize, psector_size);
}
}
fs_param.s_log_block_size =
int_log2(blocksize >> EXT2_MIN_BLOCK_LOG_SIZE);
/*
* We now need to do a sanity check of fs_blocks_count for
* 32-bit vs 64-bit block number support.
*/
if ((fs_blocks_count > MAX_32_NUM) &&
ext2fs_has_feature_64bit(&fs_param))
ext2fs_clear_feature_resize_inode(&fs_param);
if ((fs_blocks_count > MAX_32_NUM) &&
!ext2fs_has_feature_64bit(&fs_param) &&
get_bool_from_profile(fs_types, "auto_64-bit_support", 0)) {
ext2fs_set_feature_64bit(&fs_param);
ext2fs_clear_feature_resize_inode(&fs_param);
}
if ((fs_blocks_count > MAX_32_NUM) &&
!ext2fs_has_feature_64bit(&fs_param)) {
fprintf(stderr, _("%s: Size of device (0x%llx blocks) %s "
"too big to be expressed\n\t"
"in 32 bits using a blocksize of %d.\n"),
program_name, fs_blocks_count, device_name,
EXT2_BLOCK_SIZE(&fs_param));
exit(1);
}
ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
if (ext2fs_has_feature_journal_dev(&fs_param)) {
fs_types[0] = strdup("journal");
fs_types[1] = 0;
}
if (verbose) {
fputs(_("fs_types for mke2fs.conf resolution: "), stdout);
print_str_list(fs_types);
}
if (r_opt == EXT2_GOOD_OLD_REV &&
(fs_param.s_feature_compat || fs_param.s_feature_incompat ||
fs_param.s_feature_ro_compat)) {
fprintf(stderr, "%s", _("Filesystem features not supported "
"with revision 0 filesystems\n"));
exit(1);
}
if (s_opt > 0) {
if (r_opt == EXT2_GOOD_OLD_REV) {
fprintf(stderr, "%s",
_("Sparse superblocks not supported "
"with revision 0 filesystems\n"));
exit(1);
}
ext2fs_set_feature_sparse_super(&fs_param);
} else if (s_opt == 0)
ext2fs_clear_feature_sparse_super(&fs_param);
if (journal_size != 0) {
if (r_opt == EXT2_GOOD_OLD_REV) {
fprintf(stderr, "%s", _("Journals not supported with "
"revision 0 filesystems\n"));
exit(1);
}
ext2fs_set_feature_journal(&fs_param);
}
/* Get reserved_ratio from profile if not specified on cmd line. */
if (reserved_ratio < 0.0) {
reserved_ratio = get_double_from_profile(
fs_types, "reserved_ratio", 5.0);
if (reserved_ratio > 50 || reserved_ratio < 0) {
com_err(program_name, 0,
_("invalid reserved blocks percent - %lf"),
reserved_ratio);
exit(1);
}
}
if (ext2fs_has_feature_journal_dev(&fs_param)) {
reserved_ratio = 0;
fs_param.s_feature_incompat = EXT3_FEATURE_INCOMPAT_JOURNAL_DEV;
fs_param.s_feature_compat = 0;
fs_param.s_feature_ro_compat &=
EXT4_FEATURE_RO_COMPAT_METADATA_CSUM;
}
/* Check the user's mkfs options for 64bit */
if (ext2fs_has_feature_64bit(&fs_param) &&
!ext2fs_has_feature_extents(&fs_param)) {
printf("%s", _("Extents MUST be enabled for a 64-bit "
"filesystem. Pass -O extents to rectify.\n"));
exit(1);
}
/* Set first meta blockgroup via an environment variable */
/* (this is mostly for debugging purposes) */
if (ext2fs_has_feature_meta_bg(&fs_param) &&
(tmp = getenv("MKE2FS_FIRST_META_BG")))
fs_param.s_first_meta_bg = atoi(tmp);
if (ext2fs_has_feature_bigalloc(&fs_param)) {
if (!cluster_size)
cluster_size = get_int_from_profile(fs_types,
"cluster_size",
blocksize*16);
fs_param.s_log_cluster_size =
int_log2(cluster_size >> EXT2_MIN_CLUSTER_LOG_SIZE);
if (fs_param.s_log_cluster_size &&
fs_param.s_log_cluster_size < fs_param.s_log_block_size) {
com_err(program_name, 0, "%s",
_("The cluster size may not be "
"smaller than the block size.\n"));
exit(1);
}
} else if (cluster_size) {
com_err(program_name, 0, "%s",
_("specifying a cluster size requires the "
"bigalloc feature"));
exit(1);
} else
fs_param.s_log_cluster_size = fs_param.s_log_block_size;
if (inode_ratio == 0) {
inode_ratio = get_int_from_profile(fs_types, "inode_ratio",
8192);
if (inode_ratio < blocksize)
inode_ratio = blocksize;
if (inode_ratio < EXT2_CLUSTER_SIZE(&fs_param))
inode_ratio = EXT2_CLUSTER_SIZE(&fs_param);
}
#ifdef HAVE_BLKID_PROBE_GET_TOPOLOGY
retval = get_device_geometry(device_name, &fs_param,
(unsigned int) psector_size);
if (retval < 0) {
fprintf(stderr,
_("warning: Unable to get device geometry for %s\n"),
device_name);
} else if (retval) {
printf(_("%s alignment is offset by %lu bytes.\n"),
device_name, retval);
printf(_("This may result in very poor performance, "
"(re)-partitioning suggested.\n"));
}
#endif
num_backups = get_int_from_profile(fs_types, "num_backup_sb", 2);
blocksize = EXT2_BLOCK_SIZE(&fs_param);
/*
* Initialize s_desc_size so that the parse_extended_opts()
* can correctly handle "-E resize=NNN" if the 64-bit option
* is set.
*/
if (ext2fs_has_feature_64bit(&fs_param))
fs_param.s_desc_size = EXT2_MIN_DESC_SIZE_64BIT;
/* This check should happen beyond the last assignment to blocksize */
if (blocksize > sys_page_size) {
if (!force) {
com_err(program_name, 0,
_("%d-byte blocks too big for system (max %d)"),
blocksize, sys_page_size);
proceed_question(proceed_delay);
}
fprintf(stderr, _("Warning: %d-byte blocks too big for system "
"(max %d), forced to continue\n"),
blocksize, sys_page_size);
}
/* Metadata checksumming wasn't totally stable before 3.18. */
if (is_before_linux_ver(3, 18, 0) &&
ext2fs_has_feature_metadata_csum(&fs_param))
fprintf(stderr, _("Suggestion: Use Linux kernel >= 3.18 for "
"improved stability of the metadata and journal "
"checksum features.\n"));
/*
* On newer kernels we do have lazy_itable_init support. So pick the
* right default in case ext4 module is not loaded.
*/
if (is_before_linux_ver(2, 6, 37))
lazy_itable_init = 0;
else
lazy_itable_init = 1;
if (access("/sys/fs/ext4/features/lazy_itable_init", R_OK) == 0)
lazy_itable_init = 1;
lazy_itable_init = get_bool_from_profile(fs_types,
"lazy_itable_init",
lazy_itable_init);
discard = get_bool_from_profile(fs_types, "discard" , discard);
journal_flags |= get_bool_from_profile(fs_types,
"lazy_journal_init", 0) ?
EXT2_MKJOURNAL_LAZYINIT : 0;
journal_flags |= EXT2_MKJOURNAL_NO_MNT_CHECK;
if (!journal_location_string)
journal_location_string = get_string_from_profile(fs_types,
"journal_location", "");
if ((journal_location == ~0ULL) && journal_location_string &&
*journal_location_string)
journal_location = parse_num_blocks2(journal_location_string,
fs_param.s_log_block_size);
free(journal_location_string);
packed_meta_blocks = get_bool_from_profile(fs_types,
"packed_meta_blocks", 0);
if (packed_meta_blocks)
journal_location = 0;
/* Get options from profile */
for (cpp = fs_types; *cpp; cpp++) {
tmp = NULL;
profile_get_string(profile, "fs_types", *cpp, "options", "", &tmp);
if (tmp && *tmp)
parse_extended_opts(&fs_param, tmp);
free(tmp);
}
if (extended_opts)
parse_extended_opts(&fs_param, extended_opts);
if (explicit_fssize == 0 && offset > 0) {
fs_blocks_count -= offset / EXT2_BLOCK_SIZE(&fs_param);
ext2fs_blocks_count_set(&fs_param, fs_blocks_count);
fprintf(stderr,
_("\nWarning: offset specified without an "
"explicit file system size.\n"
"Creating a file system with %llu blocks "
"but this might\n"
"not be what you want.\n\n"),
(unsigned long long) fs_blocks_count);
}
/* Don't allow user to set both metadata_csum and uninit_bg bits. */
if (ext2fs_has_feature_metadata_csum(&fs_param) &&
ext2fs_has_feature_gdt_csum(&fs_param))
ext2fs_clear_feature_gdt_csum(&fs_param);
/* Can't support bigalloc feature without extents feature */
if (ext2fs_has_feature_bigalloc(&fs_param) &&
!ext2fs_has_feature_extents(&fs_param)) {
com_err(program_name, 0, "%s",
_("Can't support bigalloc feature without "
"extents feature"));
exit(1);
}
if (ext2fs_has_feature_meta_bg(&fs_param) &&
ext2fs_has_feature_resize_inode(&fs_param)) {
fprintf(stderr, "%s", _("The resize_inode and meta_bg "
"features are not compatible.\n"
"They can not be both enabled "
"simultaneously.\n"));
exit(1);
}
if (!quiet && ext2fs_has_feature_bigalloc(&fs_param))
fprintf(stderr, "%s", _("\nWarning: the bigalloc feature is "
"still under development\n"
"See https://ext4.wiki.kernel.org/"
"index.php/Bigalloc for more information\n\n"));
/*
* Since sparse_super is the default, we would only have a problem
* here if it was explicitly disabled.
*/
if (ext2fs_has_feature_resize_inode(&fs_param) &&
!ext2fs_has_feature_sparse_super(&fs_param)) {
com_err(program_name, 0, "%s",
_("reserved online resize blocks not supported "
"on non-sparse filesystem"));
exit(1);
}
if (fs_param.s_blocks_per_group) {
if (fs_param.s_blocks_per_group < 256 ||
fs_param.s_blocks_per_group > 8 * (unsigned) blocksize) {
com_err(program_name, 0, "%s",
_("blocks per group count out of range"));
exit(1);
}
}
/*
* If the bigalloc feature is enabled, then the -g option will
* specify the number of clusters per group.
*/
if (ext2fs_has_feature_bigalloc(&fs_param)) {
fs_param.s_clusters_per_group = fs_param.s_blocks_per_group;
fs_param.s_blocks_per_group = 0;
}
if (inode_size == 0)
inode_size = get_int_from_profile(fs_types, "inode_size", 0);
if (!flex_bg_size && ext2fs_has_feature_flex_bg(&fs_param))
flex_bg_size = get_uint_from_profile(fs_types,
"flex_bg_size", 16);
if (flex_bg_size) {
if (!ext2fs_has_feature_flex_bg(&fs_param)) {
com_err(program_name, 0, "%s",
_("Flex_bg feature not enabled, so "
"flex_bg size may not be specified"));
exit(1);
}
fs_param.s_log_groups_per_flex = int_log2(flex_bg_size);
}
if (inode_size && fs_param.s_rev_level >= EXT2_DYNAMIC_REV) {
if (inode_size < EXT2_GOOD_OLD_INODE_SIZE ||
inode_size > EXT2_BLOCK_SIZE(&fs_param) ||
inode_size & (inode_size - 1)) {
com_err(program_name, 0,
_("invalid inode size %d (min %d/max %d)"),
inode_size, EXT2_GOOD_OLD_INODE_SIZE,
blocksize);
exit(1);
}
fs_param.s_inode_size = inode_size;
}
/*
* If inode size is 128 and inline data is enabled, we need
* to notify users that inline data will never be useful.
*/
if (ext2fs_has_feature_inline_data(&fs_param) &&
fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
com_err(program_name, 0,
_("%d byte inodes are too small for inline data; "
"specify larger size"),
fs_param.s_inode_size);
exit(1);
}
/*
* If inode size is 128 and project quota is enabled, we need
* to notify users that project ID will never be useful.
*/
if (ext2fs_has_feature_project(&fs_param) &&
fs_param.s_inode_size == EXT2_GOOD_OLD_INODE_SIZE) {
com_err(program_name, 0,
_("%d byte inodes are too small for project quota; "
"specify larger size"),
fs_param.s_inode_size);
exit(1);
}
/* Make sure number of inodes specified will fit in 32 bits */
if (num_inodes == 0) {
unsigned long long n;
n = ext2fs_blocks_count(&fs_param) * blocksize / inode_ratio;
if (n > MAX_32_NUM) {
if (ext2fs_has_feature_64bit(&fs_param))
num_inodes = MAX_32_NUM;
else {
com_err(program_name, 0,
_("too many inodes (%llu), raise "
"inode ratio?"), n);
exit(1);
}
}
} else if (num_inodes > MAX_32_NUM) {
com_err(program_name, 0,
_("too many inodes (%llu), specify < 2^32 inodes"),
num_inodes);
exit(1);
}
/*
* Calculate number of inodes based on the inode ratio
*/
fs_param.s_inodes_count = num_inodes ? num_inodes :
(ext2fs_blocks_count(&fs_param) * blocksize) / inode_ratio;
if ((((unsigned long long)fs_param.s_inodes_count) *
(inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE)) >=
((ext2fs_blocks_count(&fs_param)) *
EXT2_BLOCK_SIZE(&fs_param))) {
com_err(program_name, 0, _("inode_size (%u) * inodes_count "
"(%u) too big for a\n\t"
"filesystem with %llu blocks, "
"specify higher inode_ratio (-i)\n\t"
"or lower inode count (-N).\n"),
inode_size ? inode_size : EXT2_GOOD_OLD_INODE_SIZE,
fs_param.s_inodes_count,
(unsigned long long) ext2fs_blocks_count(&fs_param));
exit(1);
}
/*
* Calculate number of blocks to reserve
*/
ext2fs_r_blocks_count_set(&fs_param, reserved_ratio *
ext2fs_blocks_count(&fs_param) / 100.0);
if (ext2fs_has_feature_sparse_super2(&fs_param)) {
if (num_backups >= 1)
fs_param.s_backup_bgs[0] = 1;
if (num_backups >= 2)
fs_param.s_backup_bgs[1] = ~0;
}
free(fs_type);
free(usage_types);
}
static int should_do_undo(const char *name)
{
errcode_t retval;
io_channel channel;
__u16 s_magic;
struct ext2_super_block super;
io_manager manager = unix_io_manager;
int csum_flag, force_undo;
csum_flag = ext2fs_has_feature_metadata_csum(&fs_param) ||
ext2fs_has_feature_gdt_csum(&fs_param);
force_undo = get_int_from_profile(fs_types, "force_undo", 0);
if (!force_undo && (!csum_flag || !lazy_itable_init))
return 0;
retval = manager->open(name, IO_FLAG_EXCLUSIVE, &channel);
if (retval) {
/*
* We don't handle error cases instead we
* declare that the file system doesn't exist
* and let the rest of mke2fs take care of
* error
*/
retval = 0;
goto open_err_out;
}
io_channel_set_blksize(channel, SUPERBLOCK_OFFSET);
retval = io_channel_read_blk64(channel, 1, -SUPERBLOCK_SIZE, &super);
if (retval) {
retval = 0;
goto err_out;
}
#if defined(WORDS_BIGENDIAN)
s_magic = ext2fs_swab16(super.s_magic);
#else
s_magic = super.s_magic;
#endif
if (s_magic == EXT2_SUPER_MAGIC)
retval = 1;
err_out:
io_channel_close(channel);
open_err_out:
return retval;
}
static int mke2fs_setup_tdb(const char *name, io_manager *io_ptr)
{
errcode_t retval = ENOMEM;
char *tdb_dir = NULL, *tdb_file = NULL;
char *dev_name, *tmp_name;
int free_tdb_dir = 0;
/* (re)open a specific undo file */
if (undo_file && undo_file[0] != 0) {
retval = set_undo_io_backing_manager(*io_ptr);
if (retval)
goto err;
*io_ptr = undo_io_manager;
retval = set_undo_io_backup_file(undo_file);
if (retval)
goto err;
printf(_("Overwriting existing filesystem; this can be undone "
"using the command:\n"
" e2undo %s %s\n\n"), undo_file, name);
return retval;
}
/*
* Configuration via a conf file would be
* nice
*/
tdb_dir = getenv("E2FSPROGS_UNDO_DIR");
if (!tdb_dir) {
profile_get_string(profile, "defaults",
"undo_dir", 0, "/var/lib/e2fsprogs",
&tdb_dir);
free_tdb_dir = 1;
}
if (!strcmp(tdb_dir, "none") || (tdb_dir[0] == 0) ||
access(tdb_dir, W_OK)) {
if (free_tdb_dir)
free(tdb_dir);
return 0;
}
tmp_name = strdup(name);
if (!tmp_name)
goto errout;
dev_name = basename(tmp_name);
tdb_file = malloc(strlen(tdb_dir) + 8 + strlen(dev_name) + 7 + 1);
if (!tdb_file) {
free(tmp_name);
goto errout;
}
sprintf(tdb_file, "%s/mke2fs-%s.e2undo", tdb_dir, dev_name);
free(tmp_name);
if ((unlink(tdb_file) < 0) && (errno != ENOENT)) {
retval = errno;
com_err(program_name, retval,
_("while trying to delete %s"), tdb_file);
goto errout;
}
retval = set_undo_io_backing_manager(*io_ptr);
if (retval)
goto errout;
*io_ptr = undo_io_manager;
retval = set_undo_io_backup_file(tdb_file);
if (retval)
goto errout;
printf(_("Overwriting existing filesystem; this can be undone "
"using the command:\n"
" e2undo %s %s\n\n"), tdb_file, name);
if (free_tdb_dir)
free(tdb_dir);
free(tdb_file);
return 0;
errout:
if (free_tdb_dir)
free(tdb_dir);
free(tdb_file);
err:
com_err(program_name, retval, "%s",
_("while trying to setup undo file\n"));
return retval;
}
static int mke2fs_discard_device(ext2_filsys fs)
{
struct ext2fs_numeric_progress_struct progress;
blk64_t blocks = ext2fs_blocks_count(fs->super);
blk64_t count = DISCARD_STEP_MB;
blk64_t cur;
int retval = 0;
/*
* Let's try if discard really works on the device, so
* we do not print numeric progress resulting in failure
* afterwards.
*/
retval = io_channel_discard(fs->io, 0, fs->blocksize);
if (retval)
return retval;
cur = fs->blocksize;
count *= (1024 * 1024);
count /= fs->blocksize;
ext2fs_numeric_progress_init(fs, &progress,
_("Discarding device blocks: "),
blocks);
while (cur < blocks) {
ext2fs_numeric_progress_update(fs, &progress, cur);
if (cur + count > blocks)
count = blocks - cur;
retval = io_channel_discard(fs->io, cur, count);
if (retval)
break;
cur += count;
}
if (retval) {
ext2fs_numeric_progress_close(fs, &progress,
_("failed - "));
if (!quiet)
printf("%s\n",error_message(retval));
} else
ext2fs_numeric_progress_close(fs, &progress,
_("done \n"));
return retval;
}
static void fix_cluster_bg_counts(ext2_filsys fs)
{
blk64_t block, num_blocks, last_block, next;
blk64_t tot_free = 0;
errcode_t retval;
dgrp_t group = 0;
int grp_free = 0;
num_blocks = ext2fs_blocks_count(fs->super);
last_block = ext2fs_group_last_block2(fs, group);
block = fs->super->s_first_data_block;
while (block < num_blocks) {
retval = ext2fs_find_first_zero_block_bitmap2(fs->block_map,
block, last_block, &next);
if (retval == 0)
block = next;
else {
block = last_block + 1;
goto next_bg;
}
retval = ext2fs_find_first_set_block_bitmap2(fs->block_map,
block, last_block, &next);
if (retval)
next = last_block + 1;
grp_free += EXT2FS_NUM_B2C(fs, next - block);
tot_free += next - block;
block = next;
if (block > last_block) {
next_bg:
ext2fs_bg_free_blocks_count_set(fs, group, grp_free);
ext2fs_group_desc_csum_set(fs, group);
grp_free = 0;
group++;
last_block = ext2fs_group_last_block2(fs, group);
}
}
ext2fs_free_blocks_count_set(fs->super, tot_free);
}
static int create_quota_inodes(ext2_filsys fs)
{
quota_ctx_t qctx;
quota_init_context(&qctx, fs, QUOTA_ALL_BIT);
quota_compute_usage(qctx);
quota_write_inode(qctx, quotatype_bits);
quota_release_context(&qctx);
return 0;
}
static errcode_t set_error_behavior(ext2_filsys fs)
{
char *arg = NULL;
short errors = fs->super->s_errors;
arg = get_string_from_profile(fs_types, "errors", NULL);
if (arg == NULL)
goto try_user;
if (strcmp(arg, "continue") == 0)
errors = EXT2_ERRORS_CONTINUE;
else if (strcmp(arg, "remount-ro") == 0)
errors = EXT2_ERRORS_RO;
else if (strcmp(arg, "panic") == 0)
errors = EXT2_ERRORS_PANIC;
else {
com_err(program_name, 0,
_("bad error behavior in profile - %s"),
arg);
free(arg);
return EXT2_ET_INVALID_ARGUMENT;
}
free(arg);
try_user:
if (errors_behavior)
errors = errors_behavior;
fs->super->s_errors = errors;
return 0;
}
int main (int argc, char *argv[])
{
errcode_t retval = 0;
ext2_filsys fs;
badblocks_list bb_list = 0;
unsigned int journal_blocks = 0;
unsigned int i, checkinterval;
int max_mnt_count;
int val, hash_alg;
int flags;
int old_bitmaps;
io_manager io_ptr;
char opt_string[40];
char *hash_alg_str;
int itable_zeroed = 0;
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
setlocale(LC_CTYPE, "");
bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
textdomain(NLS_CAT_NAME);
set_com_err_gettext(gettext);
#endif
PRS(argc, argv);
#ifdef CONFIG_TESTIO_DEBUG
if (getenv("TEST_IO_FLAGS") || getenv("TEST_IO_BLOCK")) {
io_ptr = test_io_manager;
test_io_backing_manager = unix_io_manager;
} else
#endif
io_ptr = unix_io_manager;
if (undo_file != NULL || should_do_undo(device_name)) {
retval = mke2fs_setup_tdb(device_name, &io_ptr);
if (retval)
exit(1);
}
/*
* Initialize the superblock....
*/
flags = EXT2_FLAG_EXCLUSIVE;
if (direct_io)
flags |= EXT2_FLAG_DIRECT_IO;
profile_get_boolean(profile, "options", "old_bitmaps", 0, 0,
&old_bitmaps);
if (!old_bitmaps)
flags |= EXT2_FLAG_64BITS;
/*
* By default, we print how many inode tables or block groups
* or whatever we've written so far. The quiet flag disables
* this, along with a lot of other output.
*/
if (!quiet)
flags |= EXT2_FLAG_PRINT_PROGRESS;
retval = ext2fs_initialize(device_name, flags, &fs_param, io_ptr, &fs);
if (retval) {
com_err(device_name, retval, "%s",
_("while setting up superblock"));
exit(1);
}
fs->progress_ops = &ext2fs_numeric_progress_ops;
/* Set the error behavior */
retval = set_error_behavior(fs);
if (retval)
usage();
/* Check the user's mkfs options for metadata checksumming */
if (!quiet &&
!ext2fs_has_feature_journal_dev(fs->super) &&
ext2fs_has_feature_metadata_csum(fs->super)) {
if (!ext2fs_has_feature_extents(fs->super))
printf("%s",
_("Extents are not enabled. The file extent "
"tree can be checksummed, whereas block maps "
"cannot. Not enabling extents reduces the "
"coverage of metadata checksumming. "
"Pass -O extents to rectify.\n"));
if (!ext2fs_has_feature_64bit(fs->super))
printf("%s",
_("64-bit filesystem support is not enabled. "
"The larger fields afforded by this feature "
"enable full-strength checksumming. "
"Pass -O 64bit to rectify.\n"));
}
if (ext2fs_has_feature_csum_seed(fs->super) &&
!ext2fs_has_feature_metadata_csum(fs->super)) {
printf("%s", _("The metadata_csum_seed feature "
"requres the metadata_csum feature.\n"));
exit(1);
}
/* Calculate journal blocks */
if (!journal_device && ((journal_size) ||
ext2fs_has_feature_journal(&fs_param)))
journal_blocks = figure_journal_size(journal_size, fs);
sprintf(opt_string, "tdb_data_size=%d", fs->blocksize <= 4096 ?
32768 : fs->blocksize * 8);
io_channel_set_options(fs->io, opt_string);
if (offset) {
sprintf(opt_string, "offset=%llu", offset);
io_channel_set_options(fs->io, opt_string);
}
/* Can't undo discard ... */
if (!noaction && discard && dev_size && (io_ptr != undo_io_manager)) {
retval = mke2fs_discard_device(fs);
if (!retval && io_channel_discard_zeroes_data(fs->io)) {
if (verbose)
printf("%s",
_("Discard succeeded and will return "
"0s - skipping inode table wipe\n"));
lazy_itable_init = 1;
itable_zeroed = 1;
zero_hugefile = 0;
}
}
if (fs_param.s_flags & EXT2_FLAGS_TEST_FILESYS)
fs->super->s_flags |= EXT2_FLAGS_TEST_FILESYS;
if (ext2fs_has_feature_flex_bg(&fs_param) ||
ext2fs_has_feature_huge_file(&fs_param) ||
ext2fs_has_feature_gdt_csum(&fs_param) ||
ext2fs_has_feature_dir_nlink(&fs_param) ||
ext2fs_has_feature_metadata_csum(&fs_param) ||
ext2fs_has_feature_extra_isize(&fs_param))
fs->super->s_kbytes_written = 1;
/*
* Wipe out the old on-disk superblock
*/
if (!noaction)
zap_sector(fs, 2, 6);
/*
* Parse or generate a UUID for the filesystem
*/
if (fs_uuid) {
if (uuid_parse(fs_uuid, fs->super->s_uuid) !=0) {
com_err(device_name, 0, "could not parse UUID: %s\n",
fs_uuid);
exit(1);
}
} else
uuid_generate(fs->super->s_uuid);
if (ext2fs_has_feature_csum_seed(fs->super))
fs->super->s_checksum_seed = ext2fs_crc32c_le(~0,
fs->super->s_uuid, sizeof(fs->super->s_uuid));
ext2fs_init_csum_seed(fs);
/*
* Initialize the directory index variables
*/
hash_alg_str = get_string_from_profile(fs_types, "hash_alg",
"half_md4");
hash_alg = e2p_string2hash(hash_alg_str);
free(hash_alg_str);
fs->super->s_def_hash_version = (hash_alg >= 0) ? hash_alg :
EXT2_HASH_HALF_MD4;
uuid_generate((unsigned char *) fs->super->s_hash_seed);
/*
* Periodic checks can be enabled/disabled via config file.
* Note we override the kernel include file's idea of what the default
* check interval (never) should be. It's a good idea to check at
* least *occasionally*, specially since servers will never rarely get
* to reboot, since Linux is so robust these days. :-)
*
* 180 days (six months) seems like a good value.
*/
#ifdef EXT2_DFL_CHECKINTERVAL
#undef EXT2_DFL_CHECKINTERVAL
#endif
#define EXT2_DFL_CHECKINTERVAL (86400L * 180L)
if (get_bool_from_profile(fs_types, "enable_periodic_fsck", 0)) {
fs->super->s_checkinterval = EXT2_DFL_CHECKINTERVAL;
fs->super->s_max_mnt_count = EXT2_DFL_MAX_MNT_COUNT;
/*
* Add "jitter" to the superblock's check interval so that we
* don't check all the filesystems at the same time. We use a
* kludgy hack of using the UUID to derive a random jitter value
*/
for (i = 0, val = 0 ; i < sizeof(fs->super->s_uuid); i++)
val += fs->super->s_uuid[i];
fs->super->s_max_mnt_count += val % EXT2_DFL_MAX_MNT_COUNT;
} else
fs->super->s_max_mnt_count = -1;
/*
* Override the creator OS, if applicable
*/
if (creator_os && !set_os(fs->super, creator_os)) {
com_err (program_name, 0, _("unknown os - %s"), creator_os);
exit(1);
}
/*
* For the Hurd, we will turn off filetype since it doesn't
* support it.
*/
if (fs->super->s_creator_os == EXT2_OS_HURD)
ext2fs_clear_feature_filetype(fs->super);
/*
* Set the volume label...
*/
if (volume_label) {
memset(fs->super->s_volume_name, 0,
sizeof(fs->super->s_volume_name));
strncpy(fs->super->s_volume_name, volume_label,
sizeof(fs->super->s_volume_name));
}
/*
* Set the last mount directory
*/
if (mount_dir) {
memset(fs->super->s_last_mounted, 0,
sizeof(fs->super->s_last_mounted));
strncpy(fs->super->s_last_mounted, mount_dir,
sizeof(fs->super->s_last_mounted));
}
/* Set current default encryption algorithms for data and
* filename encryption */
if (ext2fs_has_feature_encrypt(fs->super)) {
fs->super->s_encrypt_algos[0] =
EXT4_ENCRYPTION_MODE_AES_256_XTS;
fs->super->s_encrypt_algos[1] =
EXT4_ENCRYPTION_MODE_AES_256_CTS;
}
if (ext2fs_has_feature_metadata_csum(fs->super))
fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
if (!quiet || noaction)
show_stats(fs);
if (noaction)
exit(0);
if (ext2fs_has_feature_journal_dev(fs->super)) {
create_journal_dev(fs);
printf("\n");
exit(ext2fs_close_free(&fs) ? 1 : 0);
}
if (bad_blocks_filename)
read_bb_file(fs, &bb_list, bad_blocks_filename);
if (cflag)
test_disk(fs, &bb_list);
handle_bad_blocks(fs, bb_list);
fs->stride = fs_stride = fs->super->s_raid_stride;
if (!quiet)
printf("%s", _("Allocating group tables: "));
if (ext2fs_has_feature_flex_bg(fs->super) &&
packed_meta_blocks)
retval = packed_allocate_tables(fs);
else
retval = ext2fs_allocate_tables(fs);
if (retval) {
com_err(program_name, retval, "%s",
_("while trying to allocate filesystem tables"));
exit(1);
}
if (!quiet)
printf("%s", _("done \n"));
retval = ext2fs_convert_subcluster_bitmap(fs, &fs->block_map);
if (retval) {
com_err(program_name, retval, "%s",
_("\n\twhile converting subcluster bitmap"));
exit(1);
}
if (super_only) {
check_plausibility(device_name, CHECK_FS_EXIST, NULL);
printf(_("%s may be further corrupted by superblock rewrite\n"),
device_name);
if (!force)
proceed_question(proceed_delay);
fs->super->s_state |= EXT2_ERROR_FS;
fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY);
/*
* The command "mke2fs -S" is used to recover
* corrupted file systems, so do not mark any of the
* inodes as unused; we want e2fsck to consider all
* inodes as potentially containing recoverable data.
*/
if (ext2fs_has_group_desc_csum(fs)) {
for (i = 0; i < fs->group_desc_count; i++)
ext2fs_bg_itable_unused_set(fs, i, 0);
}
} else {
/* rsv must be a power of two (64kB is MD RAID sb alignment) */
blk64_t rsv = 65536 / fs->blocksize;
blk64_t blocks = ext2fs_blocks_count(fs->super);
blk64_t start;
blk64_t ret_blk;
#ifdef ZAP_BOOTBLOCK
zap_sector(fs, 0, 2);
#endif
/*
* Wipe out any old MD RAID (or other) metadata at the end
* of the device. This will also verify that the device is
* as large as we think. Be careful with very small devices.
*/
start = (blocks & ~(rsv - 1));
if (start > rsv)
start -= rsv;
if (start > 0)
retval = ext2fs_zero_blocks2(fs, start, blocks - start,
&ret_blk, NULL);
if (retval) {
com_err(program_name, retval,
_("while zeroing block %llu at end of filesystem"),
ret_blk);
}
write_inode_tables(fs, lazy_itable_init, itable_zeroed);
create_root_dir(fs);
create_lost_and_found(fs);
reserve_inodes(fs);
create_bad_block_inode(fs, bb_list);
if (ext2fs_has_feature_resize_inode(fs->super)) {
retval = ext2fs_create_resize_inode(fs);
if (retval) {
com_err("ext2fs_create_resize_inode", retval,
"%s",
_("while reserving blocks for online resize"));
exit(1);
}
}
}
if (journal_device) {
ext2_filsys jfs;
if (!check_plausibility(journal_device, CHECK_BLOCK_DEV,
NULL) && !force)
proceed_question(proceed_delay);
check_mount(journal_device, force, _("journal"));
retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
EXT2_FLAG_JOURNAL_DEV_OK, 0,
fs->blocksize, unix_io_manager, &jfs);
if (retval) {
com_err(program_name, retval,
_("while trying to open journal device %s\n"),
journal_device);
exit(1);
}
if (!quiet) {
printf(_("Adding journal to device %s: "),
journal_device);
fflush(stdout);
}
retval = ext2fs_add_journal_device(fs, jfs);
if(retval) {
com_err (program_name, retval,
_("\n\twhile trying to add journal to device %s"),
journal_device);
exit(1);
}
if (!quiet)
printf("%s", _("done\n"));
ext2fs_close_free(&jfs);
free(journal_device);
} else if ((journal_size) ||
ext2fs_has_feature_journal(&fs_param)) {
if (super_only) {
printf("%s", _("Skipping journal creation in super-only mode\n"));
fs->super->s_journal_inum = EXT2_JOURNAL_INO;
goto no_journal;
}
if (!journal_blocks) {
ext2fs_clear_feature_journal(fs->super);
goto no_journal;
}
if (!quiet) {
printf(_("Creating journal (%u blocks): "),
journal_blocks);
fflush(stdout);
}
retval = ext2fs_add_journal_inode2(fs, journal_blocks,
journal_location,
journal_flags);
if (retval) {
com_err(program_name, retval, "%s",
_("\n\twhile trying to create journal"));
exit(1);
}
if (!quiet)
printf("%s", _("done\n"));
}
no_journal:
if (!super_only &&
ext2fs_has_feature_mmp(fs->super)) {
retval = ext2fs_mmp_init(fs);
if (retval) {
fprintf(stderr, "%s",
_("\nError while enabling multiple "
"mount protection feature."));
exit(1);
}
if (!quiet)
printf(_("Multiple mount protection is enabled "
"with update interval %d seconds.\n"),
fs->super->s_mmp_update_interval);
}
if (ext2fs_has_feature_bigalloc(&fs_param))
fix_cluster_bg_counts(fs);
if (ext2fs_has_feature_project(&fs_param))
quotatype_bits |= QUOTA_PRJ_BIT;
if (ext2fs_has_feature_quota(&fs_param))
create_quota_inodes(fs);
retval = mk_hugefiles(fs, device_name);
if (retval)
com_err(program_name, retval, "while creating huge files");
/* Copy files from the specified directory */
if (src_root_dir) {
if (!quiet)
printf("%s", _("Copying files into the device: "));
retval = populate_fs(fs, EXT2_ROOT_INO, src_root_dir,
EXT2_ROOT_INO);
if (retval) {
com_err(program_name, retval, "%s",
_("while populating file system"));
exit(1);
} else if (!quiet)
printf("%s", _("done\n"));
}
if (!quiet)
printf("%s", _("Writing superblocks and "
"filesystem accounting information: "));
checkinterval = fs->super->s_checkinterval;
max_mnt_count = fs->super->s_max_mnt_count;
retval = ext2fs_close_free(&fs);
if (retval) {
fprintf(stderr, "%s",
_("\nWarning, had trouble writing out superblocks."));
} else if (!quiet) {
printf("%s", _("done\n\n"));
if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
print_check_message(max_mnt_count, checkinterval);
}
remove_error_table(&et_ext2_error_table);
remove_error_table(&et_prof_error_table);
profile_release(profile);
for (i=0; fs_types[i]; i++)
free(fs_types[i]);
free(fs_types);
return retval;
}
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