mke2fs.c revision f3db3566b5e1342e49dffc5ec3f418a838584194
13839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* 23839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * mke2fs.c - Make a ext2fs filesystem. 33839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * 43839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed 53839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * under the terms of the GNU Public License. 63839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 73839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 83839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* Usage: mke2fs [options] device 93839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * 103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * The device may be a block device or a image of one, but this isn't 113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * enforced (but it's not much fun on a character device :-). 123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 143839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <string.h> 153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <fcntl.h> 163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <ctype.h> 173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <termios.h> 183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <time.h> 193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <getopt.h> 203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <unistd.h> 213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <stdlib.h> 223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <mntent.h> 233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <malloc.h> 243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <sys/ioctl.h> 25f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o#include <sys/types.h> 26f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include <linux/fs.h> 28f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o#include <linux/ext2_fs.h> 293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include "et/com_err.h" 313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include "ext2fs/ext2fs.h" 323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#include "../version.h" 333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o#define STRIDE_LENGTH 8 353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 363839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oextern int isatty(int); 37f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'oextern FILE *fpopen(const char *cmd, const char *mode); 383839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 393839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oconst char * program_name = "mke2fs"; 403839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oconst char * device_name = NULL; 413839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 423839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* Command line options */ 433839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oint cflag = 0; 443839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oint verbose = 0; 453839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oint quiet = 0; 46f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'oint super_only = 0; 473839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ochar *bad_blocks_filename = 0; 483839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 493839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostruct ext2_super_block param; 503839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 513839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void usage(NOARGS) 523839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf(stderr, 543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "Usage: %s [-c|-t|-l filename] [-b block-size] " 553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "[-f fragment-size]\n\t[-i bytes-per-inode] " 56f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "[-m reserved-blocks-percentage] [-qvS]\n" 57f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "\t[-g blocks-per-group] device [blocks-count]\n", 583839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o program_name); 593839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 603839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic int log2(int arg) 633839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 643839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int l = 0; 653839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 663839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o arg >>= 1; 673839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o while (arg) { 683839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o l++; 693839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o arg >>= 1; 703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return l; 723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 74f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'ostatic long valid_offset (int fd, ext2_loff_t offset) 753839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 763839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o char ch; 773839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 78f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (ext2_llseek (fd, offset, 0) < 0) 793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return 0; 803839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (read (fd, &ch, 1) < 1) 813839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return 0; 823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return 1; 833839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic int count_blocks (int fd) 863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 87f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ext2_loff_t high, low; 883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o low = 0; 903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (high = 1; valid_offset (fd, high); high *= 2) 913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o low = high; 923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o while (low < high - 1) 933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o { 94f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o const ext2_loff_t mid = (low + high) / 2; 953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (valid_offset (fd, mid)) 973839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o low = mid; 983839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o else 993839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o high = mid; 1003839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1013839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o valid_offset (fd, 0); 1023839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return (low + 1) / 1024; 1033839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 1043839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1053839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic int get_size(const char *file) 1063839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 1073839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int fd; 1083839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int size; 1093839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fd = open(file, O_RDWR); 1113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (fd < 0) { 1123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("open", errno, "while trying to determine size of %s", 1133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o file); 1143839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 1153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (ioctl(fd, BLKGETSIZE, &size) >= 0) { 1173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o close(fd); 1183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return size / (EXT2_BLOCK_SIZE(¶m) / 512); 1193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o size = count_blocks(fd); 1223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o close(fd); 1233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return size; 1243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 1253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1263839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void check_mount(NOARGS) 1273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 1283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o FILE * f; 1293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o struct mntent * mnt; 1303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if ((f = setmntent (MOUNTED, "r")) == NULL) 1323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 1333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o while ((mnt = getmntent (f)) != NULL) 1343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (strcmp (device_name, mnt->mnt_fsname) == 0) 1353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 1363839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o endmntent (f); 1373839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!mnt) 1383839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 1393839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1403839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf(stderr, "%s is mounted; will not make a filesystem here!\n", 1413839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o device_name); 1423839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 1433839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 1443839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1453839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* 1463839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Helper function for read_bb_file and test_disk 1473839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 1483839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void invalid_block(ext2_filsys fs, blk_t blk) 1493839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 1503839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Bad block %lu out of range; ignored.\n", blk); 1513839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 1523839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 1533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* 1553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Reads the bad blocks list from a file 1563839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 1573839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void read_bb_file(ext2_filsys fs, badblocks_list *bb_list, 1583839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o const char *bad_blocks_file) 1593839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 1603839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o FILE *f; 1613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 1623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1633839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o f = fopen(bad_blocks_file, "r"); 1643839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!f) { 1653839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("read_bad_blocks_file", errno, 1663839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while trying to open %s", bad_blocks_file); 1673839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 1683839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1693839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 1703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fclose (f); 1713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 1723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_read_bb_FILE", retval, 1733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while reading in list of bad blocks from file"); 1743839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 1753839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1763839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 1773839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1783839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o/* 1793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Runs the badblocks program to test the disk 1803839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 1813839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void test_disk(ext2_filsys fs, badblocks_list *bb_list) 1823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 1833839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o FILE *f; 1843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 1853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o char buf[1024]; 1863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 1873839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o sprintf(buf, "badblocks %s%s %ld", quiet ? "" : "-s ", 1883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->device_name, 1893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->super->s_blocks_count); 1903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (verbose) 1913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Running command: %s\n", buf); 1923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o f = popen(buf, "r"); 1933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!f) { 1943839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("popen", errno, 1953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while trying run '%s'", buf); 1963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 1973839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 1983839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_read_bb_FILE(fs, f, bb_list, invalid_block); 199f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o pclose(f); 2003839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 2013839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_read_bb_FILE", retval, 2023839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while processing list of bad blocks from program"); 2033839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 2043839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 2053839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 2063839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2073839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void handle_bad_blocks(ext2_filsys fs, badblocks_list bb_list) 2083839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 209f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o int i, j; 2103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int must_be_good; 2113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o blk_t blk; 2123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o badblocks_iterate bb_iter; 2133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 214f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o blk_t group_block; 215f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o int group; 216f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o int group_bad; 2173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!bb_list) 2193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 2203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* 2223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * The primary superblock and group descriptors *must* be 2233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * good; if not, abort. 2243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 2253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o must_be_good = fs->super->s_first_data_block + 1 + fs->desc_blocks; 2263839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i = fs->super->s_first_data_block; i <= must_be_good; i++) { 2273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (badblocks_list_test(bb_list, i)) { 2283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf(stderr, "Block %d in primary superblock/group " 2293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "descriptor area bad.\n", i); 2303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf(stderr, "Blocks %ld through %d must be good " 2313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "in order to build a filesystem.\n", 2323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->super->s_first_data_block, must_be_good); 2333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf(stderr, "Aborting....\n"); 2343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 2353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 2363839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 237f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 238f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o /* 239f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o * See if any of the bad blocks are showing up in the backup 240f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o * superblocks and/or group descriptors. If so, issue a 241f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o * warning and adjust the block counts appropriately. 242f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o */ 243f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group_block = fs->super->s_first_data_block + 244f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->super->s_blocks_per_group; 245f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group_bad = 0; 246f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 247f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o for (i = 1; i < fs->group_desc_count; i++) { 248f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o for (j=0; j < fs->desc_blocks+1; j++) { 249f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (badblocks_list_test(bb_list, group_block + 250f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o j)) { 251f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (!group_bad) 252f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fprintf(stderr, 253f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o"Warning: the backup superblock/group descriptors at block %ld contain\n" 254f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o" bad blocks.\n\n", 255f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group_block); 256f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group_bad++; 257f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group = ext2fs_group_of_blk(fs, group_block+j); 258f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->group_desc[group].bg_free_blocks_count++; 259f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->super->s_free_blocks_count++; 260f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 261f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 262f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o group_block += fs->super->s_blocks_per_group; 263f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 2643839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2653839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* 2663839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Mark all the bad blocks as used... 2673839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 2683839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = badblocks_list_iterate_begin(bb_list, &bb_iter); 2693839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 2703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("badblocks_list_iterate_begin", retval, 2713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while marking bad blocks as used"); 2723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 2733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 2743839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o while (badblocks_list_iterate(bb_iter, &blk)) 275f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ext2fs_mark_block_bitmap(fs->block_map, blk); 2763839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o badblocks_list_iterate_end(bb_iter); 2773839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 2783839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void new_table_block(ext2_filsys fs, blk_t first_block, 280f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o const char *name, int num, int initialize, 281f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o const char *buf, blk_t *new_block) 2823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 2833839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 2843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o blk_t blk; 2853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int i; 2863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int count; 2873839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 2883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_get_free_blocks(fs, first_block, 2893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o first_block + fs->super->s_blocks_per_group, 2903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o num, fs->block_map, new_block); 2913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 2923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Could not allocate %d block(s) for %s: %s\n", 2933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o num, name, error_message(retval)); 2943839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ext2fs_unmark_valid(fs); 2953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 2963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 297f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (initialize) { 298f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o blk = *new_block; 299f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o for (i=0; i < num; i += STRIDE_LENGTH, blk += STRIDE_LENGTH) { 300f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (num-i > STRIDE_LENGTH) 301f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o count = STRIDE_LENGTH; 302f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o else 303f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o count = num - i; 304f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o retval = io_channel_write_blk(fs->io, blk, count, buf); 305f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (retval) 306f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o printf("Warning: could not write %d blocks " 307f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "starting at %ld for %s: %s\n", 308f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o count, blk, name, 309f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o error_message(retval)); 310f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 3113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 3123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o blk = *new_block; 3133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i = 0; i < num; i++, blk++) 314f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ext2fs_mark_block_bitmap(fs->block_map, blk); 3153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 3163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void alloc_tables(ext2_filsys fs) 3183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 3193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o blk_t group_blk; 3203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int i; 3213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o char *buf; 3223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o buf = malloc(fs->blocksize * STRIDE_LENGTH); 3243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!buf) { 3253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("malloc", ENOMEM, "while allocating zeroizing buffer"); 3263839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 3273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 3283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o memset(buf, 0, fs->blocksize * STRIDE_LENGTH); 3293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o group_blk = fs->super->s_first_data_block; 3313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 3323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Writing inode tables: "); 3333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i = 0; i < fs->group_desc_count; i++) { 3343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 3353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%4d/%4ld", i, fs->group_desc_count); 336f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o new_table_block(fs, group_blk, "block bitmap", 1, 0, buf, 3373839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o &fs->group_desc[i].bg_block_bitmap); 338f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o new_table_block(fs, group_blk, "inode bitmap", 1, 0, buf, 3393839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o &fs->group_desc[i].bg_inode_bitmap); 3403839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o new_table_block(fs, group_blk, "inode table", 341f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->inode_blocks_per_group, 342f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o !super_only, buf, 3433839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o &fs->group_desc[i].bg_inode_table); 3443839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3453839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o group_blk += fs->super->s_blocks_per_group; 3463839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 3473839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("\b\b\b\b\b\b\b\b\b"); 3483839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 3493839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 3503839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("done \n"); 3513839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 3523839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void create_root_dir(ext2_filsys fs) 3543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 3553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 356f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o struct ext2_inode inode; 3573839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3583839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, EXT2_ROOT_INO, 0); 3593839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 3603839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_mkdir", retval, "while creating root dir"); 3613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 3623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 363f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (geteuid()) { 364f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o retval = ext2fs_read_inode(fs, EXT2_ROOT_INO, &inode); 365f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (retval) { 366f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o com_err("ext2fs_read_inode", retval, 367f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "while reading root inode"); 368f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o exit(1); 369f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 370f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o inode.i_uid = geteuid(); 371f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o retval = ext2fs_write_inode(fs, EXT2_ROOT_INO, &inode); 372f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (retval) { 373f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o com_err("ext2fs_write_inode", retval, 374f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "while setting root inode ownership"); 375f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o exit(1); 376f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 377f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 3783839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 3793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3803839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void create_lost_and_found(ext2_filsys fs) 3813839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 3823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 3833839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ino_t ino; 3843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o const char *name = "lost+found"; 3853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int i; 3863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3873839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_mkdir(fs, EXT2_ROOT_INO, 0, name); 3883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 3893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_mkdir", retval, "while creating /lost+found"); 3903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 3913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 3923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_lookup(fs, EXT2_ROOT_INO, name, strlen(name), 0, &ino); 3943839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 3953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2_lookup", retval, "while looking up /lost+found"); 3963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 3973839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 3983839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 3993839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i=1; i < EXT2_NDIR_BLOCKS; i++) { 4003839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_expand_dir(fs, ino); 4013839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 4023839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_expand_dir", retval, 4033839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while expanding /lost+found"); 4043839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 4053839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4063839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4073839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 4083839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4093839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void create_bad_block_inode(ext2_filsys fs, badblocks_list bb_list) 4103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 4113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval; 4123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 413f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ext2fs_mark_inode_bitmap(fs->inode_map, EXT2_BAD_INO); 4143839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->group_desc[0].bg_free_inodes_count--; 4153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->super->s_free_inodes_count--; 4163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_update_bb_inode(fs, bb_list); 4173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 4183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err("ext2fs_update_bb_inode", retval, 4193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "while setting bad block inode"); 4203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 4213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 4243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void reserve_inodes(ext2_filsys fs) 4263839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 4273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ino_t i; 4283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int group; 4293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i = EXT2_ROOT_INO + 1; i < EXT2_FIRST_INO; i++) { 431f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ext2fs_mark_inode_bitmap(fs->inode_map, i); 4323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o group = ext2fs_group_of_ino(fs, i); 4333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->group_desc[group].bg_free_inodes_count--; 4343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fs->super->s_free_inodes_count--; 4353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4363839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ext2fs_mark_ib_dirty(fs); 4373839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 4383839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 439f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'ostatic void zap_bootblock(ext2_filsys fs) 440f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o{ 441f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o char buf[512]; 442f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o int retval; 443f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 444f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o memset(buf, 0, 512); 445f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 446f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o retval = io_channel_write_blk(fs->io, 0, -512, buf); 447f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (retval) 448f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o printf("Warning: could not erase block 0: %s\n", 449f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o error_message(retval)); 450f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o} 451f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 452f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o 4533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void show_stats(ext2_filsys fs) 4543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 4553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o struct ext2_super_block *s = fs->super; 4563839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o blk_t group_block; 4573839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int i, col_left; 4583839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4593839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (param.s_blocks_count != s->s_blocks_count) 4603839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("warning: %ld blocks unused.\n\n", 4613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_blocks_count - s->s_blocks_count); 4623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4633839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu inodes, %lu blocks\n", s->s_inodes_count, 4643839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o s->s_blocks_count); 4653839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu blocks (%2.2f%%) reserved for the super user\n", 4663839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o s->s_r_blocks_count, 4673839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 100.0 * s->s_r_blocks_count / s->s_blocks_count); 4683839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("First data block=%lu\n", s->s_first_data_block); 4693839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Block size=%u (log=%lu)\n", fs->blocksize, 4703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o s->s_log_block_size); 4713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Fragment size=%u (log=%lu)\n", fs->fragsize, 4723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o s->s_log_frag_size); 4733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu block group%s\n", fs->group_desc_count, 4743839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o (fs->group_desc_count > 1) ? "s" : ""); 4753839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu blocks per group, %lu fragments per group\n", 4763839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o s->s_blocks_per_group, s->s_frags_per_group); 4773839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu inodes per group\n", s->s_inodes_per_group); 4783839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (fs->group_desc_count == 1) { 4803839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("\n"); 4813839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return; 4823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4833839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 4843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Superblock backups stored on blocks: "); 4853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o group_block = s->s_first_data_block; 4863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o col_left = 0; 4873839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o for (i = 1; i < fs->group_desc_count; i++) { 4883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o group_block += s->s_blocks_per_group; 4893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!col_left--) { 4903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("\n\t"); 4913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o col_left = 8; 4923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("%lu", group_block); 4943839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (i != fs->group_desc_count - 1) 4953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf(", "); 4963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 4973839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("\n\n"); 4983839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 4993839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 5003839e65723771b85975f4263102dd3ceec4523cTheodore Ts'ostatic void PRS(int argc, char *argv[]) 5013839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 5023839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o char c; 5033839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int size; 5043839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o char * tmp; 505f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o char *oldpath; 506f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o static char newpath[PATH_MAX]; 5073839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int inode_ratio = 4096; 5083839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o int reserved_ratio = 5; 5093839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 5103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* Update our PATH to include /sbin */ 5113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o strcpy(newpath, "PATH=/sbin:"); 5123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if ((oldpath = getenv("PATH")) != NULL) 5133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o strcat(newpath, oldpath); 5143839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o putenv(newpath); 5153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 5163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o setbuf(stdout, NULL); 5173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o setbuf(stderr, NULL); 5183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o initialize_ext2_error_table(); 5193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o memset(¶m, 0, sizeof(struct ext2_super_block)); 5203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 5213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o fprintf (stderr, "mke2fs %s, %s for EXT2 FS %s, %s\n", 5223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o E2FSPROGS_VERSION, E2FSPROGS_DATE, 5233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o EXT2FS_VERSION, EXT2FS_DATE); 5243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (argc && *argv) 5253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o program_name = *argv; 526f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o while ((c = getopt (argc, argv, "b:cf:g:i:l:m:qtvS")) != EOF) 5273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o switch (c) { 5283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'b': 5293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o size = strtoul(optarg, &tmp, 0); 5303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (size < 1024 || size > 4096 || *tmp) { 5313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, "bad block size - %s", 5323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o optarg); 5333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 5343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 5353839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_log_block_size = 5363839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 5373839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5383839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'c': 5393839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 't': /* Check for bad blocks */ 5403839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o cflag = 1; 5413839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5423839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'f': 5433839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o size = strtoul(optarg, &tmp, 0); 5443839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (size < 1024 || size > 4096 || *tmp) { 5453839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, "bad fragment size - %s", 5463839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o optarg); 5473839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 5483839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 5493839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_log_frag_size = 5503839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o log2(size >> EXT2_MIN_BLOCK_LOG_SIZE); 5513839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Warning: fragments not supported. " 5523839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "Ignoring -f option\n"); 5533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'g': 5553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_blocks_per_group = strtoul(optarg, &tmp, 0); 556f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (*tmp) { 557f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o com_err(program_name, 0, 558f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "Illegal number for blocks per group"); 559f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o exit(1); 560f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 5613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (param.s_blocks_per_group < 256 || 5623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_blocks_per_group > 8192 || *tmp) { 5633839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, 564f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "blocks per group count out of range"); 565f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o exit(1); 566f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 567f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if ((param.s_blocks_per_group % 8) != 0) { 568f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o com_err(program_name, 0, 569f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "blocks per group must be multiple of 8"); 5703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 5713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 5723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'i': 5743839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o inode_ratio = strtoul(optarg, &tmp, 0); 5753839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (inode_ratio < 1024 || inode_ratio > 256 * 1024 || 5763839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o *tmp) { 5773839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, "bad inode ratio - %s", 5783839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o optarg); 5793839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 5803839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 5813839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5823839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'l': 583f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o bad_blocks_filename = malloc(strlen(optarg)+1); 584f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (!bad_blocks_filename) { 585f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o com_err(program_name, ENOMEM, 586f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o "in malloc for bad_blocks_filename"); 587f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o exit(1); 588f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 589f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o strcpy(bad_blocks_filename, optarg); 5903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 5913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'm': 5923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o reserved_ratio = strtoul(optarg, &tmp, 0); 5933839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (reserved_ratio > 50 || *tmp) { 5943839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, 5953839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "bad reserved blocks percent - %s", 5963839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o optarg); 5973839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 5983839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 5993839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 6003839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'v': 6013839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o verbose = 1; 6023839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 6033839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o case 'q': 6043839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o quiet = 1; 6053839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o break; 606f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o case 'S': 607f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o super_only = 1; 608f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o break; 6093839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o default: 6103839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o usage(); 6113839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 6123839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (optind == argc) 6133839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o usage(); 6143839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o device_name = argv[optind]; 6153839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o optind++; 6163839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (optind < argc) { 6173839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_blocks_count = strtoul(argv[optind++], &tmp, 0); 6183839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (*tmp) { 6193839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(program_name, 0, "bad blocks count - %s", 6203839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o argv[optind - 1]); 6213839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 6223839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 6233839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 6243839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (optind < argc) 6253839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o usage(); 6263839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_log_frag_size = param.s_log_block_size; 6273839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6283839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!param.s_blocks_count) 6293839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_blocks_count = get_size(device_name); 6303839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6313839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* 6323839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Calculate number of inodes based on the inode ratio 6333839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 6343839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_inodes_count = 635f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o ((long long) param.s_blocks_count * EXT2_BLOCK_SIZE(¶m)) 636f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o / inode_ratio; 6373839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6383839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* 6393839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Calculate number of blocks to reserve 6403839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 6413839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o param.s_r_blocks_count = (param.s_blocks_count * reserved_ratio) / 100; 6423839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 6433839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6443839e65723771b85975f4263102dd3ceec4523cTheodore Ts'oint main (int argc, char *argv[]) 6453839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o{ 6463839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o errcode_t retval = 0; 6473839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ext2_filsys fs; 6483839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o badblocks_list bb_list = 0; 6493839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6503839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o PRS(argc, argv); 6513839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6523839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o check_mount(); 6533839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6543839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o /* 6553839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o * Initialize the superblock.... 6563839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o */ 6573839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o retval = ext2fs_initialize(device_name, 0, ¶m, 6583839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o unix_io_manager, &fs); 6593839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (retval) { 6603839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o com_err(device_name, retval, "while setting up superblock"); 6613839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o exit(1); 6623839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o } 6633839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6643839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 6653839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o show_stats(fs); 6663839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6673839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (bad_blocks_filename) 6683839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o read_bb_file(fs, &bb_list, bad_blocks_filename); 6693839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (cflag) 6703839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o test_disk(fs, &bb_list); 6713839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6723839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o handle_bad_blocks(fs, bb_list); 6733839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o alloc_tables(fs); 674f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o if (super_only) { 675f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->super->s_state |= EXT2_ERROR_FS; 676f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o fs->flags &= ~(EXT2_FLAG_IB_DIRTY|EXT2_FLAG_BB_DIRTY); 677f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } else { 678f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o create_root_dir(fs); 679f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o create_lost_and_found(fs); 680f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o reserve_inodes(fs); 681f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o create_bad_block_inode(fs, bb_list); 682f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o zap_bootblock(fs); 683f3db3566b5e1342e49dffc5ec3f418a838584194Theodore Ts'o } 6843839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o 6853839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 6863839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("Writing superblocks and " 6873839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o "filesystem accounting information: "); 6883839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o ext2fs_close(fs); 6893839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o if (!quiet) 6903839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o printf("done\n"); 6913839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o return 0; 6923839e65723771b85975f4263102dd3ceec4523cTheodore Ts'o} 693