diff options
Diffstat (limited to 'e2fsprogs/old_e2fsprogs/tune2fs.c')
| -rw-r--r-- | e2fsprogs/old_e2fsprogs/tune2fs.c | 710 |
1 files changed, 0 insertions, 710 deletions
diff --git a/e2fsprogs/old_e2fsprogs/tune2fs.c b/e2fsprogs/old_e2fsprogs/tune2fs.c deleted file mode 100644 index bbe30e5a0..000000000 --- a/e2fsprogs/old_e2fsprogs/tune2fs.c +++ /dev/null @@ -1,710 +0,0 @@ -/* vi: set sw=4 ts=4: */ -/* - * tune2fs.c - Change the file system parameters on an ext2 file system - * - * Copyright (C) 1992, 1993, 1994 Remy Card <card@masi.ibp.fr> - * Laboratoire MASI, Institut Blaise Pascal - * Universite Pierre et Marie Curie (Paris VI) - * - * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o. - * - * Licensed under GPLv2, see file LICENSE in this source tree. - */ - -/* - * History: - * 93/06/01 - Creation - * 93/10/31 - Added the -c option to change the maximal mount counts - * 93/12/14 - Added -l flag to list contents of superblock - * M.J.E. Mol (marcel@duteca.et.tudelft.nl) - * F.W. ten Wolde (franky@duteca.et.tudelft.nl) - * 93/12/29 - Added the -e option to change errors behavior - * 94/02/27 - Ported to use the ext2fs library - * 94/03/06 - Added the checks interval from Uwe Ohse (uwe@tirka.gun.de) - */ - -#include <sys/types.h> -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <time.h> -#include <unistd.h> -#include <getopt.h> - -#include "e2fsbb.h" -#include "ext2fs/ext2_fs.h" -#include "ext2fs/ext2fs.h" -#include "uuid/uuid.h" -#include "e2p/e2p.h" -#include "ext2fs/kernel-jbd.h" -#include "util.h" -#include "blkid/blkid.h" - -#include "libbb.h" - -static char * device_name = NULL; -static char * new_label, *new_last_mounted, *new_UUID; -static char * io_options; -static int c_flag, C_flag, e_flag, f_flag, g_flag, i_flag, l_flag, L_flag; -static int m_flag, M_flag, r_flag, s_flag = -1, u_flag, U_flag, T_flag; -static time_t last_check_time; -static int print_label; -static int max_mount_count, mount_count, mount_flags; -static unsigned long interval, reserved_blocks; -static unsigned reserved_ratio; -static unsigned long resgid, resuid; -static unsigned short errors; -static int open_flag; -static char *features_cmd; -static char *mntopts_cmd; - -static int journal_size, journal_flags; -static char *journal_device = NULL; - -static const char *please_fsck = "Please run e2fsck on the filesystem\n"; - -static __u32 ok_features[3] = { - EXT3_FEATURE_COMPAT_HAS_JOURNAL | EXT2_FEATURE_COMPAT_DIR_INDEX, - EXT2_FEATURE_INCOMPAT_FILETYPE, - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER -}; - -/* - * Remove an external journal from the filesystem - */ -static void remove_journal_device(ext2_filsys fs) -{ - char *journal_path; - ext2_filsys jfs; - char buf[1024]; - journal_superblock_t *jsb; - int i, nr_users; - errcode_t retval; - int commit_remove_journal = 0; - io_manager io_ptr; - - if (f_flag) - commit_remove_journal = 1; /* force removal even if error */ - - uuid_unparse(fs->super->s_journal_uuid, buf); - journal_path = blkid_get_devname(NULL, "UUID", buf); - - if (!journal_path) { - journal_path = - ext2fs_find_block_device(fs->super->s_journal_dev); - if (!journal_path) - return; - } - - io_ptr = unix_io_manager; - retval = ext2fs_open(journal_path, EXT2_FLAG_RW| - EXT2_FLAG_JOURNAL_DEV_OK, 0, - fs->blocksize, io_ptr, &jfs); - if (retval) { - bb_error_msg("Failed to open external journal"); - goto no_valid_journal; - } - if (!(jfs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) { - bb_error_msg("%s is not a journal device", journal_path); - goto no_valid_journal; - } - - /* Get the journal superblock */ - if ((retval = io_channel_read_blk(jfs->io, 1, -1024, buf))) { - bb_error_msg("Failed to read journal superblock"); - goto no_valid_journal; - } - - jsb = (journal_superblock_t *) buf; - if ((jsb->s_header.h_magic != (unsigned) ntohl(JFS_MAGIC_NUMBER)) || - (jsb->s_header.h_blocktype != (unsigned) ntohl(JFS_SUPERBLOCK_V2))) { - bb_error_msg("Journal superblock not found!"); - goto no_valid_journal; - } - - /* Find the filesystem UUID */ - nr_users = ntohl(jsb->s_nr_users); - for (i=0; i < nr_users; i++) { - if (memcmp(fs->super->s_uuid, - &jsb->s_users[i*16], 16) == 0) - break; - } - if (i >= nr_users) { - bb_error_msg("Filesystem's UUID not found on journal device"); - commit_remove_journal = 1; - goto no_valid_journal; - } - nr_users--; - for (i=0; i < nr_users; i++) - memcpy(&jsb->s_users[i*16], &jsb->s_users[(i+1)*16], 16); - jsb->s_nr_users = htonl(nr_users); - - /* Write back the journal superblock */ - if ((retval = io_channel_write_blk(jfs->io, 1, -1024, buf))) { - bb_error_msg("Failed to write journal superblock"); - goto no_valid_journal; - } - - commit_remove_journal = 1; - -no_valid_journal: - if (commit_remove_journal == 0) - bb_error_msg_and_die("Journal NOT removed"); - fs->super->s_journal_dev = 0; - uuid_clear(fs->super->s_journal_uuid); - ext2fs_mark_super_dirty(fs); - puts("Journal removed"); - free(journal_path); -} - -/* Helper function for remove_journal_inode */ -static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr, - int blockcnt EXT2FS_ATTR((unused)), - void *private EXT2FS_ATTR((unused))) -{ - blk_t block; - int group; - - block = *blocknr; - ext2fs_unmark_block_bitmap(fs->block_map,block); - group = ext2fs_group_of_blk(fs, block); - fs->group_desc[group].bg_free_blocks_count++; - fs->super->s_free_blocks_count++; - return 0; -} - -/* - * Remove the journal inode from the filesystem - */ -static void remove_journal_inode(ext2_filsys fs) -{ - struct ext2_inode inode; - errcode_t retval; - ino_t ino = fs->super->s_journal_inum; - char *msg = "to read"; - char *s = "journal inode"; - - retval = ext2fs_read_inode(fs, ino, &inode); - if (retval) - goto REMOVE_JOURNAL_INODE_ERROR; - if (ino == EXT2_JOURNAL_INO) { - retval = ext2fs_read_bitmaps(fs); - if (retval) { - msg = "to read bitmaps"; - s = ""; - goto REMOVE_JOURNAL_INODE_ERROR; - } - retval = ext2fs_block_iterate(fs, ino, 0, NULL, - release_blocks_proc, NULL); - if (retval) { - msg = "clearing"; - goto REMOVE_JOURNAL_INODE_ERROR; - } - memset(&inode, 0, sizeof(inode)); - ext2fs_mark_bb_dirty(fs); - fs->flags &= ~EXT2_FLAG_SUPER_ONLY; - } else - inode.i_flags &= ~EXT2_IMMUTABLE_FL; - retval = ext2fs_write_inode(fs, ino, &inode); - if (retval) { - msg = "writing"; -REMOVE_JOURNAL_INODE_ERROR: - bb_error_msg_and_die("Failed %s %s", msg, s); - } - fs->super->s_journal_inum = 0; - ext2fs_mark_super_dirty(fs); -} - -/* - * Update the default mount options - */ -static void update_mntopts(ext2_filsys fs, char *mntopts) -{ - struct ext2_super_block *sb= fs->super; - - if (e2p_edit_mntopts(mntopts, &sb->s_default_mount_opts, ~0)) - bb_error_msg_and_die("Invalid mount option set: %s", mntopts); - ext2fs_mark_super_dirty(fs); -} - -/* - * Update the feature set as provided by the user. - */ -static void update_feature_set(ext2_filsys fs, char *features) -{ - int sparse, old_sparse, filetype, old_filetype; - int journal, old_journal, dxdir, old_dxdir; - struct ext2_super_block *sb= fs->super; - __u32 old_compat, old_incompat, old_ro_compat; - - old_compat = sb->s_feature_compat; - old_ro_compat = sb->s_feature_ro_compat; - old_incompat = sb->s_feature_incompat; - - old_sparse = sb->s_feature_ro_compat & - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; - old_filetype = sb->s_feature_incompat & - EXT2_FEATURE_INCOMPAT_FILETYPE; - old_journal = sb->s_feature_compat & - EXT3_FEATURE_COMPAT_HAS_JOURNAL; - old_dxdir = sb->s_feature_compat & - EXT2_FEATURE_COMPAT_DIR_INDEX; - if (e2p_edit_feature(features, &sb->s_feature_compat, ok_features)) - bb_error_msg_and_die("Invalid filesystem option set: %s", features); - sparse = sb->s_feature_ro_compat & - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; - filetype = sb->s_feature_incompat & - EXT2_FEATURE_INCOMPAT_FILETYPE; - journal = sb->s_feature_compat & - EXT3_FEATURE_COMPAT_HAS_JOURNAL; - dxdir = sb->s_feature_compat & - EXT2_FEATURE_COMPAT_DIR_INDEX; - if (old_journal && !journal) { - if ((mount_flags & EXT2_MF_MOUNTED) && - !(mount_flags & EXT2_MF_READONLY)) { - bb_error_msg_and_die( - "The has_journal flag may only be " - "cleared when the filesystem is\n" - "unmounted or mounted " - "read-only"); - } - if (sb->s_feature_incompat & - EXT3_FEATURE_INCOMPAT_RECOVER) { - bb_error_msg_and_die( - "The needs_recovery flag is set. " - "%s before clearing the has_journal flag.", - please_fsck); - } - if (sb->s_journal_inum) { - remove_journal_inode(fs); - } - if (sb->s_journal_dev) { - remove_journal_device(fs); - } - } - if (journal && !old_journal) { - /* - * If adding a journal flag, let the create journal - * code below handle creating setting the flag and - * creating the journal. We supply a default size if - * necessary. - */ - if (!journal_size) - journal_size = -1; - sb->s_feature_compat &= ~EXT3_FEATURE_COMPAT_HAS_JOURNAL; - } - if (dxdir && !old_dxdir) { - if (!sb->s_def_hash_version) - sb->s_def_hash_version = EXT2_HASH_TEA; - if (uuid_is_null((unsigned char *) sb->s_hash_seed)) - uuid_generate((unsigned char *) sb->s_hash_seed); - } - - if (sb->s_rev_level == EXT2_GOOD_OLD_REV && - (sb->s_feature_compat || sb->s_feature_ro_compat || - sb->s_feature_incompat)) - ext2fs_update_dynamic_rev(fs); - if ((sparse != old_sparse) || - (filetype != old_filetype)) { - sb->s_state &= ~EXT2_VALID_FS; - printf("\n%s\n", please_fsck); - } - if ((old_compat != sb->s_feature_compat) || - (old_ro_compat != sb->s_feature_ro_compat) || - (old_incompat != sb->s_feature_incompat)) - ext2fs_mark_super_dirty(fs); -} - -/* - * Add a journal to the filesystem. - */ -static void add_journal(ext2_filsys fs) -{ - if (fs->super->s_feature_compat & - EXT3_FEATURE_COMPAT_HAS_JOURNAL) { - bb_error_msg_and_die("The filesystem already has a journal"); - } - if (journal_device) { - make_journal_device(journal_device, fs, 0, 0); - } else if (journal_size) { - make_journal_blocks(fs, journal_size, journal_flags, 0); - /* - * If the filesystem wasn't mounted, we need to force - * the block group descriptors out. - */ - if ((mount_flags & EXT2_MF_MOUNTED) == 0) - fs->flags &= ~EXT2_FLAG_SUPER_ONLY; - } - print_check_message(fs); -} - -/* - * Busybox stuff - */ -static char * x_blkid_get_devname(const char *token) -{ - char * dev_name; - - if (!(dev_name = blkid_get_devname(NULL, token, NULL))) - bb_error_msg_and_die("Unable to resolve '%s'", token); - return dev_name; -} - -#ifdef CONFIG_E2LABEL -static void parse_e2label_options(int argc, char ** argv) -{ - if ((argc < 2) || (argc > 3)) - bb_show_usage(); - io_options = strchr(argv[1], '?'); - if (io_options) - *io_options++ = 0; - device_name = x_blkid_get_devname(argv[1]); - if (argc == 3) { - open_flag = EXT2_FLAG_RW | EXT2_FLAG_JOURNAL_DEV_OK; - L_flag = 1; - new_label = argv[2]; - } else - print_label++; -} -#else -#define parse_e2label_options(x,y) -#endif - -static time_t parse_time(char *str) -{ - struct tm ts; - - if (strcmp(str, "now") == 0) { - return time(0); - } - memset(&ts, 0, sizeof(ts)); -#ifdef HAVE_STRPTIME - strptime(str, "%Y%m%d%H%M%S", &ts); -#else - sscanf(str, "%4d%2d%2d%2d%2d%2d", &ts.tm_year, &ts.tm_mon, - &ts.tm_mday, &ts.tm_hour, &ts.tm_min, &ts.tm_sec); - ts.tm_year -= 1900; - ts.tm_mon -= 1; - if (ts.tm_year < 0 || ts.tm_mon < 0 || ts.tm_mon > 11 || - ts.tm_mday < 0 || ts.tm_mday > 31 || ts.tm_hour > 23 || - ts.tm_min > 59 || ts.tm_sec > 61) - ts.tm_mday = 0; -#endif - if (ts.tm_mday == 0) { - bb_error_msg_and_die("can't parse date/time specifier: %s", str); - } - return mktime(&ts); -} - -static void parse_tune2fs_options(int argc, char **argv) -{ - int c; - char * tmp; - - printf("tune2fs %s (%s)\n", E2FSPROGS_VERSION, E2FSPROGS_DATE); - while ((c = getopt(argc, argv, "c:e:fg:i:jlm:o:r:s:u:C:J:L:M:O:T:U:")) != EOF) - switch (c) - { - case 'c': - max_mount_count = xatou_range(optarg, 0, 16000); - if (max_mount_count == 0) - max_mount_count = -1; - c_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'C': - mount_count = xatou_range(optarg, 0, 16000); - C_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'e': - if (strcmp (optarg, "continue") == 0) - errors = EXT2_ERRORS_CONTINUE; - else if (strcmp (optarg, "remount-ro") == 0) - errors = EXT2_ERRORS_RO; - else if (strcmp (optarg, "panic") == 0) - errors = EXT2_ERRORS_PANIC; - else { - bb_error_msg_and_die("bad error behavior - %s", optarg); - } - e_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'f': /* Force */ - f_flag = 1; - break; - case 'g': - resgid = bb_strtoul(optarg, NULL, 10); - if (errno) - resgid = xgroup2gid(optarg); - g_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'i': - interval = strtoul(optarg, &tmp, 0); - switch (*tmp) { - case 's': - tmp++; - break; - case '\0': - case 'd': - case 'D': /* days */ - interval *= 86400; - if (*tmp != '\0') - tmp++; - break; - case 'm': - case 'M': /* months! */ - interval *= 86400 * 30; - tmp++; - break; - case 'w': - case 'W': /* weeks */ - interval *= 86400 * 7; - tmp++; - break; - } - if (*tmp || interval > (365 * 86400)) { - bb_error_msg_and_die("bad interval - %s", optarg); - } - i_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'j': - if (!journal_size) - journal_size = -1; - open_flag = EXT2_FLAG_RW; - break; - case 'J': - parse_journal_opts(&journal_device, &journal_flags, &journal_size, optarg); - open_flag = EXT2_FLAG_RW; - break; - case 'l': - l_flag = 1; - break; - case 'L': - new_label = optarg; - L_flag = 1; - open_flag = EXT2_FLAG_RW | - EXT2_FLAG_JOURNAL_DEV_OK; - break; - case 'm': - reserved_ratio = xatou_range(optarg, 0, 50); - m_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'M': - new_last_mounted = optarg; - M_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'o': - if (mntopts_cmd) { - bb_error_msg_and_die("-o may only be specified once"); - } - mntopts_cmd = optarg; - open_flag = EXT2_FLAG_RW; - break; - - case 'O': - if (features_cmd) { - bb_error_msg_and_die("-O may only be specified once"); - } - features_cmd = optarg; - open_flag = EXT2_FLAG_RW; - break; - case 'r': - reserved_blocks = xatoul(optarg); - r_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 's': - s_flag = atoi(optarg); - open_flag = EXT2_FLAG_RW; - break; - case 'T': - T_flag = 1; - last_check_time = parse_time(optarg); - open_flag = EXT2_FLAG_RW; - break; - case 'u': - resuid = bb_strtoul(optarg, NULL, 10); - if (errno) - resuid = xuname2uid(optarg); - u_flag = 1; - open_flag = EXT2_FLAG_RW; - break; - case 'U': - new_UUID = optarg; - U_flag = 1; - open_flag = EXT2_FLAG_RW | - EXT2_FLAG_JOURNAL_DEV_OK; - break; - default: - bb_show_usage(); - } - if (optind < argc - 1 || optind == argc) - bb_show_usage(); - if (!open_flag && !l_flag) - bb_show_usage(); - io_options = strchr(argv[optind], '?'); - if (io_options) - *io_options++ = 0; - device_name = x_blkid_get_devname(argv[optind]); -} - -static void tune2fs_clean_up(void) -{ - if (ENABLE_FEATURE_CLEAN_UP && device_name) free(device_name); - if (ENABLE_FEATURE_CLEAN_UP && journal_device) free(journal_device); -} - -int tune2fs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; -int tune2fs_main(int argc, char **argv) -{ - errcode_t retval; - ext2_filsys fs; - struct ext2_super_block *sb; - io_manager io_ptr; - - if (ENABLE_FEATURE_CLEAN_UP) - atexit(tune2fs_clean_up); - - if (ENABLE_E2LABEL && (applet_name[0] == 'e')) /* e2label */ - parse_e2label_options(argc, argv); - else - parse_tune2fs_options(argc, argv); /* tune2fs */ - - io_ptr = unix_io_manager; - retval = ext2fs_open2(device_name, io_options, open_flag, - 0, 0, io_ptr, &fs); - if (retval) - bb_error_msg_and_die("No valid superblock on %s", device_name); - sb = fs->super; - if (print_label) { - /* For e2label emulation */ - printf("%.*s\n", (int) sizeof(sb->s_volume_name), - sb->s_volume_name); - return 0; - } - retval = ext2fs_check_if_mounted(device_name, &mount_flags); - if (retval) - bb_error_msg_and_die("can't determine if %s is mounted", device_name); - /* Normally we only need to write out the superblock */ - fs->flags |= EXT2_FLAG_SUPER_ONLY; - - if (c_flag) { - sb->s_max_mnt_count = max_mount_count; - ext2fs_mark_super_dirty(fs); - printf("Setting maximal mount count to %d\n", max_mount_count); - } - if (C_flag) { - sb->s_mnt_count = mount_count; - ext2fs_mark_super_dirty(fs); - printf("Setting current mount count to %d\n", mount_count); - } - if (e_flag) { - sb->s_errors = errors; - ext2fs_mark_super_dirty(fs); - printf("Setting error behavior to %u\n", errors); - } - if (g_flag) { - sb->s_def_resgid = resgid; - ext2fs_mark_super_dirty(fs); - printf("Setting reserved blocks gid to %lu\n", resgid); - } - if (i_flag) { - sb->s_checkinterval = interval; - ext2fs_mark_super_dirty(fs); - printf("Setting interval between check %lu seconds\n", interval); - } - if (m_flag) { - sb->s_r_blocks_count = (sb->s_blocks_count / 100) - * reserved_ratio; - ext2fs_mark_super_dirty(fs); - printf("Setting reserved blocks percentage to %u (%u blocks)\n", - reserved_ratio, sb->s_r_blocks_count); - } - if (r_flag) { - if (reserved_blocks >= sb->s_blocks_count/2) - bb_error_msg_and_die("reserved blocks count is too big (%lu)", reserved_blocks); - sb->s_r_blocks_count = reserved_blocks; - ext2fs_mark_super_dirty(fs); - printf("Setting reserved blocks count to %lu\n", reserved_blocks); - } - if (s_flag == 1) { - if (sb->s_feature_ro_compat & - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) - bb_error_msg("\nThe filesystem already has sparse superblocks"); - else { - sb->s_feature_ro_compat |= - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; - sb->s_state &= ~EXT2_VALID_FS; - ext2fs_mark_super_dirty(fs); - printf("\nSparse superblock flag set. %s", please_fsck); - } - } - if (s_flag == 0) { - if (!(sb->s_feature_ro_compat & - EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)) - bb_error_msg("\nThe filesystem already has sparse superblocks disabled"); - else { - sb->s_feature_ro_compat &= - ~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER; - sb->s_state &= ~EXT2_VALID_FS; - fs->flags |= EXT2_FLAG_MASTER_SB_ONLY; - ext2fs_mark_super_dirty(fs); - printf("\nSparse superblock flag cleared. %s", please_fsck); - } - } - if (T_flag) { - sb->s_lastcheck = last_check_time; - ext2fs_mark_super_dirty(fs); - printf("Setting time filesystem last checked to %s\n", - ctime(&last_check_time)); - } - if (u_flag) { - sb->s_def_resuid = resuid; - ext2fs_mark_super_dirty(fs); - printf("Setting reserved blocks uid to %lu\n", resuid); - } - if (L_flag) { - if (strlen(new_label) > sizeof(sb->s_volume_name)) - bb_error_msg("Warning: label too long, truncating"); - memset(sb->s_volume_name, 0, sizeof(sb->s_volume_name)); - safe_strncpy(sb->s_volume_name, new_label, - sizeof(sb->s_volume_name)); - ext2fs_mark_super_dirty(fs); - } - if (M_flag) { - memset(sb->s_last_mounted, 0, sizeof(sb->s_last_mounted)); - safe_strncpy(sb->s_last_mounted, new_last_mounted, - sizeof(sb->s_last_mounted)); - ext2fs_mark_super_dirty(fs); - } - if (mntopts_cmd) - update_mntopts(fs, mntopts_cmd); - if (features_cmd) - update_feature_set(fs, features_cmd); - if (journal_size || journal_device) - add_journal(fs); - - if (U_flag) { - if ((strcasecmp(new_UUID, "null") == 0) || - (strcasecmp(new_UUID, "clear") == 0)) { - uuid_clear(sb->s_uuid); - } else if (strcasecmp(new_UUID, "time") == 0) { - uuid_generate_time(sb->s_uuid); - } else if (strcasecmp(new_UUID, "random") == 0) { - uuid_generate(sb->s_uuid); - } else if (uuid_parse(new_UUID, sb->s_uuid)) { - bb_error_msg_and_die("Invalid UUID format"); - } - ext2fs_mark_super_dirty(fs); - } - - if (l_flag) - list_super (sb); - return (ext2fs_close (fs) ? 1 : 0); -} |