| /* |
| * mke2fs.c - Make a ext2fs filesystem. |
| * |
| * Copyright (C) 1994, 1995, 1996, 1997 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 :-). |
| */ |
| |
| #include <stdio.h> |
| #include <string.h> |
| #include <fcntl.h> |
| #include <ctype.h> |
| #include <termios.h> |
| #include <time.h> |
| #ifdef HAVE_GETOPT_H |
| #include <getopt.h> |
| #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 |
| #ifdef HAVE_MNTENT_H |
| #include <mntent.h> |
| #endif |
| #include <sys/ioctl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| #ifdef HAVE_LINUX_FS_H |
| #include <linux/fs.h> |
| #endif |
| #include <linux/ext2_fs.h> |
| #ifdef HAVE_LINUX_MAJOR_H |
| #include <linux/major.h> |
| #endif |
| |
| #include "et/com_err.h" |
| #include "uuid/uuid.h" |
| #include "ext2fs/ext2fs.h" |
| #include "../version.h" |
| |
| /* Everything is STDC, these days */ |
| #define NOARGS void |
| |
| #define STRIDE_LENGTH 8 |
| |
| #ifndef sparc |
| #define ZAP_BOOTBLOCK |
| #endif |
| |
| extern int isatty(int); |
| extern FILE *fpopen(const char *cmd, const char *mode); |
| |
| const char * program_name = "mke2fs"; |
| const char * device_name = NULL; |
| |
| /* Command line options */ |
| int cflag = 0; |
| int verbose = 0; |
| int quiet = 0; |
| int super_only = 0; |
| int force = 0; |
| char *bad_blocks_filename = 0; |
| __u32 fs_stride = 0; |
| |
| struct ext2_super_block param; |
| char *creator_os = NULL; |
| char *volume_label = NULL; |
| char *mount_dir = NULL; |
| |
| static void usage(NOARGS), check_plausibility(NOARGS), check_mount(NOARGS); |
| |
| static void usage(NOARGS) |
| { |
| fprintf(stderr, "Usage: %s [-c|-t|-l filename] [-b block-size] " |
| "[-f fragment-size]\n\t[-i bytes-per-inode] " |
| "[-m reserved-blocks-percentage] [-qvSV]\n\t" |
| "[-o creator-os] [-g blocks-per-group] [-L volume-label]\n\t" |
| "[-M last-mounted-directory] [-r fs-revision] [-R raid_opts]\n\t" |
| "[-s sparse-super-flag] device [blocks-count]\n", |
| program_name); |
| exit(1); |
| } |
| |
| static int log2(int arg) |
| { |
| int l = 0; |
| |
| arg >>= 1; |
| while (arg) { |
| l++; |
| arg >>= 1; |
| } |
| return l; |
| } |
| |
| static int log10(unsigned int arg) |
| { |
| int l; |
| |
| for (l=0; arg ; l++) |
| arg = arg / 10; |
| return l; |
| } |
| |
| static void proceed_question(NOARGS) |
| { |
| fflush(stdout); |
| fflush(stderr); |
| printf("Proceed anyway? (y,n) "); |
| if (getchar() != 'y') |
| exit(1); |
| } |
| |
| static void check_plausibility(NOARGS) |
| { |
| #ifdef HAVE_LINUX_MAJOR_H |
| int val; |
| struct stat s; |
| |
| val = stat(device_name, &s); |
| |
| if(val == -1) { |
| fprintf(stderr, "Could not stat %s --- %s\n", |
| device_name, error_message(errno)); |
| if (errno == ENOENT) |
| fprintf(stderr, "\nThe device apparently does " |
| "not exist; did you specify it correctly?\n"); |
| exit(1); |
| } |
| if(!S_ISBLK(s.st_mode)) { |
| printf("%s is not a block special device.\n", device_name); |
| proceed_question(); |
| return; |
| } else if ((MAJOR(s.st_rdev) == HD_MAJOR && |
| MINOR(s.st_rdev)%64 == 0) || |
| (SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) && |
| MINOR(s.st_rdev)%16 == 0)) { |
| printf("%s is entire device, not just one partition!\n", |
| device_name); |
| proceed_question(); |
| } |
| #endif |
| } |
| |
| static void check_mount(NOARGS) |
| { |
| errcode_t retval; |
| int mount_flags; |
| |
| retval = ext2fs_check_if_mounted(device_name, &mount_flags); |
| if (retval) { |
| com_err("ext2fs_check_if_mount", retval, |
| "while determining whether %s is mounted.", |
| device_name); |
| return; |
| } |
| if (!(mount_flags & EXT2_MF_MOUNTED)) |
| return; |
| |
| fprintf(stderr, "%s is mounted; will not make a filesystem here!\n", |
| device_name); |
| exit(1); |
| } |
| |
| /* |
| * Helper function for read_bb_file and test_disk |
| */ |
| static void invalid_block(ext2_filsys fs, blk_t blk) |
| { |
| printf("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, |
| "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 %s%s %d", fs->blocksize, |
| quiet ? "" : "-s ", fs->device_name, |
| fs->super->s_blocks_count); |
| if (verbose) |
| printf("Running command: %s\n", buf); |
| f = popen(buf, "r"); |
| if (!f) { |
| com_err("popen", errno, |
| "while trying 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, |
| "while processing list of bad blocks from program"); |
| exit(1); |
| } |
| } |
| |
| static void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) |
| { |
| int i, j; |
| int 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 (badblocks_list_test(bb_list, i)) { |
| fprintf(stderr, "Block %d in primary superblock/group " |
| "descriptor area bad.\n", i); |
| fprintf(stderr, "Blocks %d through %d must be good " |
| "in order to build a filesystem.\n", |
| fs->super->s_first_data_block, must_be_good); |
| fprintf(stderr, "Aborting....\n"); |
| 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 (badblocks_list_test(bb_list, group_block + |
| j)) { |
| if (!group_bad) |
| fprintf(stderr, |
| "Warning: the backup superblock/group descriptors at block %d contain\n" |
| " bad blocks.\n\n", |
| group_block); |
| group_bad++; |
| group = ext2fs_group_of_blk(fs, group_block+j); |
| fs->group_desc[group].bg_free_blocks_count++; |
| fs->super->s_free_blocks_count++; |
| } |
| } |
| group_block += fs->super->s_blocks_per_group; |
| } |
| |
| /* |
| * Mark all the bad blocks as used... |
| */ |
| retval = badblocks_list_iterate_begin(bb_list, &bb_iter); |
| if (retval) { |
| com_err("badblocks_list_iterate_begin", retval, |
| "while marking bad blocks as used"); |
| exit(1); |
| } |
| while (badblocks_list_iterate(bb_iter, &blk)) |
| ext2fs_mark_block_bitmap(fs->block_map, blk); |
| badblocks_list_iterate_end(bb_iter); |
| } |
| |
| static void write_inode_tables(ext2_filsys fs) |
| { |
| errcode_t retval; |
| blk_t blk; |
| int i, j, num, count; |
| char *buf; |
| char format[20], backup[80]; |
| |
| buf = malloc(fs->blocksize * STRIDE_LENGTH); |
| if (!buf) { |
| com_err("malloc", ENOMEM, "while allocating zeroizing buffer"); |
| exit(1); |
| } |
| memset(buf, 0, fs->blocksize * STRIDE_LENGTH); |
| |
| /* |
| * Figure out how many digits we need |
| */ |
| i = log10(fs->group_desc_count); |
| sprintf(format, "%%%dd/%%%dld", i, i); |
| memset(backup, '\b', sizeof(backup)-1); |
| backup[sizeof(backup)-1] = 0; |
| if ((2*i)+1 < sizeof(backup)) |
| backup[(2*i)+1] = 0; |
| |
| if (!quiet) |
| printf("Writing inode tables: "); |
| for (i = 0; i < fs->group_desc_count; i++) { |
| if (!quiet) |
| printf(format, i, fs->group_desc_count); |
| |
| blk = fs->group_desc[i].bg_inode_table; |
| num = fs->inode_blocks_per_group; |
| |
| for (j=0; j < num; j += STRIDE_LENGTH, blk += STRIDE_LENGTH) { |
| if (num-j > STRIDE_LENGTH) |
| count = STRIDE_LENGTH; |
| else |
| count = num - j; |
| retval = io_channel_write_blk(fs->io, blk, count, buf); |
| if (retval) |
| printf("Warning: could not write %d blocks " |
| "in inode table starting at %d: %s\n", |
| count, blk, error_message(retval)); |
| } |
| if (!quiet) |
| fputs(backup, stdout); |
| } |
| free(buf); |
| if (!quiet) |
| fputs("done \n", stdout); |
| } |
| |
| 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, "while creating root dir"); |
| exit(1); |
| } |
| if (geteuid()) { |
| retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); |
| if (retval) { |
| com_err("ext2fs_read_inode", retval, |
| "while reading root inode"); |
| exit(1); |
| } |
| inode.i_uid = getuid(); |
| if (inode.i_uid) |
| inode.i_gid = getgid(); |
| retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode); |
| if (retval) { |
| com_err("ext2fs_write_inode", retval, |
| "while setting root inode ownership"); |
| exit(1); |
| } |
| } |
| } |
| |
| static void create_lost_and_found(ext2_filsys fs) |
| { |
| errcode_t retval; |
| ino_t ino; |
| const char *name = "lost+found"; |
| int i; |
| |
| retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); |
| if (retval) { |
| com_err("ext2fs_mkdir", retval, "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, "while looking up /lost+found"); |
| exit(1); |
| } |
| |
| for (i=1; i < EXT2_NDIR_BLOCKS; i++) { |
| retval = ext2fs_expand_dir(fs, ino); |
| if (retval) { |
| com_err("ext2fs_expand_dir", retval, |
| "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_bitmap(fs->inode_map, EXT2_BAD_INO); |
| fs->group_desc[0].bg_free_inodes_count--; |
| fs->super->s_free_inodes_count--; |
| retval = ext2fs_update_bb_inode(fs, bb_list); |
| if (retval) { |
| com_err("ext2fs_update_bb_inode", retval, |
| "while setting bad block inode"); |
| exit(1); |
| } |
| |
| } |
| |
| static void reserve_inodes(ext2_filsys fs) |
| { |
| ino_t i; |
| int group; |
| |
| for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INODE(fs->super); i++) { |
| ext2fs_mark_inode_bitmap(fs->inode_map, i); |
| group = ext2fs_group_of_ino(fs, i); |
| fs->group_desc[group].bg_free_inodes_count--; |
| fs->super->s_free_inodes_count--; |
| } |
| ext2fs_mark_ib_dirty(fs); |
| } |
| |
| #ifdef ZAP_BOOTBLOCK |
| static void zap_bootblock(ext2_filsys fs) |
| { |
| char buf[512]; |
| int retval; |
| |
| memset(buf, 0, 512); |
| |
| retval = io_channel_write_blk(fs->io, 0, -512, buf); |
| if (retval) |
| printf("Warning: could not erase block 0: %s\n", |
| error_message(retval)); |
| } |
| #endif |
| |
| |
| static void show_stats(ext2_filsys fs) |
| { |
| struct ext2fs_sb *s = (struct ext2fs_sb *) fs->super; |
| char buf[80]; |
| blk_t group_block; |
| int i, need, col_left; |
| |
| if (param.s_blocks_count != s->s_blocks_count) |
| printf("warning: %d blocks unused.\n\n", |
| param.s_blocks_count - s->s_blocks_count); |
| |
| switch (fs->super->s_creator_os) { |
| case EXT2_OS_LINUX: printf ("Linux"); break; |
| case EXT2_OS_HURD: printf ("GNU/hurd"); break; |
| case EXT2_OS_MASIX: printf ("Masix"); break; |
| default: printf ("(unknown os)"); |
| } |
| printf (" ext2 filesystem format\n"); |
| memset(buf, 0, sizeof(buf)); |
| strncpy(buf, s->s_volume_name, sizeof(s->s_volume_name)); |
| printf("Filesystem label=%s\n", buf); |
| printf("%u inodes, %u blocks\n", s->s_inodes_count, |
| s->s_blocks_count); |
| printf("%u blocks (%2.2f%%) reserved for the super user\n", |
| s->s_r_blocks_count, |
| 100.0 * s->s_r_blocks_count / s->s_blocks_count); |
| printf("First data block=%u\n", s->s_first_data_block); |
| printf("Block size=%u (log=%u)\n", fs->blocksize, |
| s->s_log_block_size); |
| printf("Fragment size=%u (log=%u)\n", fs->fragsize, |
| s->s_log_frag_size); |
| printf("%lu block group%s\n", fs->group_desc_count, |
| (fs->group_desc_count > 1) ? "s" : ""); |
| printf("%u blocks per group, %u fragments per group\n", |
| s->s_blocks_per_group, s->s_frags_per_group); |
| printf("%u inodes per group\n", s->s_inodes_per_group); |
| |
| if (fs->group_desc_count == 1) { |
| printf("\n"); |
| return; |
| } |
| |
| printf("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; |
| need = log10(group_block) + 2; |
| if (need > col_left) { |
| printf("\n\t"); |
| col_left = 72; |
| } |
| col_left -= need; |
| printf("%u", group_block); |
| if (i != fs->group_desc_count - 1) |
| printf(", "); |
| } |
| printf("\n\n"); |
| } |
| |
| #ifndef HAVE_STRCASECMP |
| static int strcasecmp (char *s1, char *s2) |
| { |
| while (*s1 && *s2) { |
| int ch1 = *s1++, ch2 = *s2++; |
| if (isupper (ch1)) |
| ch1 = tolower (ch1); |
| if (isupper (ch2)) |
| ch2 = tolower (ch2); |
| if (ch1 != ch2) |
| return ch1 - ch2; |
| } |
| return *s1 ? 1 : *s2 ? -1 : 0; |
| } |
| #endif |
| |
| /* |
| * 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, "masix") == 0) |
| sb->s_creator_os = EXT2_OS_MASIX; |
| else |
| return 0; |
| return 1; |
| } |
| |
| #define PATH_SET "PATH=/sbin" |
| |
| static void parse_raid_opts(const char *opts) |
| { |
| char *buf, *token, *next, *p, *arg; |
| int len; |
| int raid_usage = 0; |
| |
| len = strlen(opts); |
| buf = malloc(len+1); |
| if (!buf) { |
| fprintf(stderr, "Couldn't allocate memory to parse " |
| "raid 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, "stride") == 0) { |
| if (!arg) { |
| raid_usage++; |
| continue; |
| } |
| fs_stride = strtoul(arg, &p, 0); |
| if (*p || (fs_stride == 0)) { |
| fprintf(stderr, "Invalid stride parameter.\n"); |
| raid_usage++; |
| continue; |
| } |
| } else |
| raid_usage++; |
| } |
| if (raid_usage) { |
| fprintf(stderr, "\nBad raid options specified.\n\n" |
| "Raid options are separated by commas, " |
| "and may take an argument which\n" |
| "\tis set off by an equals ('=') sign.\n\n" |
| "Valid raid options are:\n" |
| "\tstride=<stride length in blocks>\n\n"); |
| exit(1); |
| } |
| } |
| |
| |
| |
| static void PRS(int argc, char *argv[]) |
| { |
| int c; |
| int size; |
| char * tmp; |
| blk_t max = 8192; |
| int inode_ratio = 4096; |
| int reserved_ratio = 5; |
| errcode_t retval; |
| int sparse_option = -1; |
| char *oldpath = getenv("PATH"); |
| struct ext2fs_sb *param_ext2 = (struct ext2fs_sb *) ¶m; |
| char *raid_opts = 0; |
| blk_t dev_size; |
| |
| /* Update our PATH to include /sbin */ |
| if (oldpath) { |
| char *newpath; |
| |
| newpath = malloc(sizeof (PATH_SET) + 1 + strlen (oldpath)); |
| strcpy (newpath, PATH_SET); |
| strcat (newpath, ":"); |
| strcat (newpath, oldpath); |
| putenv (newpath); |
| } else |
| putenv (PATH_SET); |
| |
| setbuf(stdout, NULL); |
| setbuf(stderr, NULL); |
| initialize_ext2_error_table(); |
| memset(¶m, 0, sizeof(struct ext2_super_block)); |
| |
| fprintf (stderr, "mke2fs %s, %s for EXT2 FS %s, %s\n", |
| E2FSPROGS_VERSION, E2FSPROGS_DATE, |
| EXT2FS_VERSION, EXT2FS_DATE); |
| if (argc && *argv) |
| program_name = *argv; |
| while ((c = getopt (argc, argv, |
| "b:cf:g:i:l:m:o:qr:R:s:tvI:SFL:M:V")) != EOF) |
| switch (c) { |
| case 'b': |
| size = strtoul(optarg, &tmp, 0); |
| if (size < 1024 || size > 4096 || *tmp) { |
| com_err(program_name, 0, "bad block size - %s", |
| optarg); |
| exit(1); |
| } |
| param.s_log_block_size = |
| log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); |
| max = size * 8; |
| break; |
| case 'c': |
| case 't': /* Check for bad blocks */ |
| cflag = 1; |
| break; |
| case 'f': |
| size = strtoul(optarg, &tmp, 0); |
| if (size < 1024 || size > 4096 || *tmp) { |
| com_err(program_name, 0, "bad fragment size - %s", |
| optarg); |
| exit(1); |
| } |
| param.s_log_frag_size = |
| log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); |
| printf("Warning: fragments not supported. " |
| "Ignoring -f option\n"); |
| break; |
| case 'g': |
| param.s_blocks_per_group = strtoul(optarg, &tmp, 0); |
| if (*tmp) { |
| com_err(program_name, 0, |
| "Illegal number for blocks per group"); |
| exit(1); |
| } |
| if ((param.s_blocks_per_group % 8) != 0) { |
| com_err(program_name, 0, |
| "blocks per group must be multiple of 8"); |
| exit(1); |
| } |
| break; |
| case 'i': |
| inode_ratio = strtoul(optarg, &tmp, 0); |
| if (inode_ratio < 1024 || inode_ratio > 256 * 1024 || |
| *tmp) { |
| com_err(program_name, 0, "bad inode ratio - %s", |
| optarg); |
| exit(1); |
| } |
| break; |
| case 'l': |
| bad_blocks_filename = malloc(strlen(optarg)+1); |
| if (!bad_blocks_filename) { |
| com_err(program_name, ENOMEM, |
| "in malloc for bad_blocks_filename"); |
| exit(1); |
| } |
| strcpy(bad_blocks_filename, optarg); |
| break; |
| case 'm': |
| reserved_ratio = strtoul(optarg, &tmp, 0); |
| if (reserved_ratio > 50 || *tmp) { |
| com_err(program_name, 0, |
| "bad reserved blocks percent - %s", |
| optarg); |
| exit(1); |
| } |
| break; |
| case 'o': |
| creator_os = optarg; |
| break; |
| case 'r': |
| param.s_rev_level = atoi(optarg); |
| break; |
| case 's': |
| sparse_option = atoi(optarg); |
| break; |
| #ifdef EXT2_DYNAMIC_REV |
| case 'I': |
| param.s_inode_size = atoi(optarg); |
| break; |
| #endif |
| case 'v': |
| verbose = 1; |
| break; |
| case 'q': |
| quiet = 1; |
| break; |
| case 'F': |
| force = 1; |
| break; |
| case 'L': |
| volume_label = optarg; |
| break; |
| case 'M': |
| mount_dir = optarg; |
| break; |
| case 'R': |
| raid_opts = optarg; |
| break; |
| case 'S': |
| super_only = 1; |
| break; |
| case 'V': |
| /* Print version number and exit */ |
| fprintf(stderr, "\tUsing %s\n", |
| error_message(EXT2_ET_BASE)); |
| exit(0); |
| default: |
| usage(); |
| } |
| if (optind == argc) |
| usage(); |
| device_name = argv[optind]; |
| optind++; |
| if (optind < argc) { |
| param.s_blocks_count = strtoul(argv[optind++], &tmp, 0); |
| if (*tmp) { |
| com_err(program_name, 0, "bad blocks count - %s", |
| argv[optind - 1]); |
| exit(1); |
| } |
| } |
| if (optind < argc) |
| usage(); |
| |
| if (raid_opts) |
| parse_raid_opts(raid_opts); |
| |
| if (!force) |
| check_plausibility(); |
| check_mount(); |
| |
| param.s_log_frag_size = param.s_log_block_size; |
| |
| retval = ext2fs_get_device_size(device_name, |
| EXT2_BLOCK_SIZE(¶m), |
| &dev_size); |
| if (retval && (retval != EXT2_ET_UNIMPLEMENTED)) { |
| com_err(program_name, retval, |
| "while trying to determine filesystem size"); |
| exit(1); |
| } |
| if (!param.s_blocks_count) { |
| if (retval == EXT2_ET_UNIMPLEMENTED) { |
| com_err(program_name, 0, |
| "Couldn't determine device size; you " |
| "must specify\nthe size of the " |
| "filesystem\n"); |
| exit(1); |
| } else |
| param.s_blocks_count = dev_size; |
| } else if (!force && (param.s_blocks_count > dev_size)) { |
| com_err(program_name, 0, |
| "Filesystem larger than apparent filesystem size."); |
| proceed_question(); |
| } |
| |
| if (param.s_blocks_per_group) { |
| if (param.s_blocks_per_group < 256 || |
| param.s_blocks_per_group > max || *tmp) { |
| com_err(program_name, 0, |
| "blocks per group count out of range"); |
| exit(1); |
| } |
| } |
| |
| /* |
| * Calculate number of inodes based on the inode ratio |
| */ |
| param.s_inodes_count = |
| ((long long) param.s_blocks_count * EXT2_BLOCK_SIZE(¶m)) |
| / inode_ratio; |
| |
| /* |
| * Calculate number of blocks to reserve |
| */ |
| param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100; |
| |
| /* |
| * If we are using revision #1, use the sparse super feature |
| * by default |
| */ |
| #ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER |
| if ((sparse_option == 1) |
| #ifdef EXT2_DYNAMIC_REV |
| || ((param.s_rev_level >= EXT2_DYNAMIC_REV) && (!sparse_option)) |
| #endif |
| ) |
| param_ext2->s_feature_ro_compat |= |
| EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; |
| #endif |
| } |
| |
| int main (int argc, char *argv[]) |
| { |
| errcode_t retval = 0; |
| ext2_filsys fs; |
| badblocks_list bb_list = 0; |
| struct ext2fs_sb *s; |
| |
| PRS(argc, argv); |
| |
| /* |
| * Initialize the superblock.... |
| */ |
| retval = ext2fs_initialize(device_name, 0, ¶m, |
| unix_io_manager, &fs); |
| if (retval) { |
| com_err(device_name, retval, "while setting up superblock"); |
| exit(1); |
| } |
| |
| /* |
| * Generate a UUID for it... |
| */ |
| s = (struct ext2fs_sb *) fs->super; |
| uuid_generate(s->s_uuid); |
| |
| /* |
| * 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); |
| } |
| |
| /* |
| * Set the volume label... |
| */ |
| if (volume_label) { |
| memset(s->s_volume_name, 0, sizeof(s->s_volume_name)); |
| strncpy(s->s_volume_name, volume_label, |
| sizeof(s->s_volume_name)); |
| } |
| |
| /* |
| * Set the last mount directory |
| */ |
| if (mount_dir) { |
| memset(s->s_last_mounted, 0, sizeof(s->s_last_mounted)); |
| strncpy(s->s_last_mounted, mount_dir, |
| sizeof(s->s_last_mounted)); |
| } |
| |
| if (!quiet) |
| show_stats(fs); |
| |
| 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; |
| retval = ext2fs_allocate_tables(fs); |
| if (retval) { |
| com_err(program_name, retval, |
| "while trying to allocate filesystem tables"); |
| exit(1); |
| } |
| if (super_only) { |
| fs->super->s_state |= EXT2_ERROR_FS; |
| fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); |
| } else { |
| write_inode_tables(fs); |
| create_root_dir(fs); |
| create_lost_and_found(fs); |
| reserve_inodes(fs); |
| create_bad_block_inode(fs, bb_list); |
| #ifdef ZAP_BOOTBLOCK |
| zap_bootblock(fs); |
| #endif |
| } |
| |
| if (!quiet) |
| printf("Writing superblocks and " |
| "filesystem accounting information: "); |
| ext2fs_close(fs); |
| if (!quiet) |
| printf("done\n"); |
| return 0; |
| } |