/*
- * tune2fs.c - Change the file system parameters on
- * an unmounted second extended file system
+ * 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 by Theodore Ts'o.
+ * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
#include "et/com_err.h"
#include "uuid/uuid.h"
#include "e2p/e2p.h"
+#include "jfs_user.h"
+#include "util.h"
#include "../version.h"
#include "nls-enable.h"
const char * program_name = "tune2fs";
-char * device_name = NULL;
-char * new_label = NULL;
-char * new_last_mounted = NULL;
-char * new_UUID = NULL;
-int c_flag = 0;
-int C_flag = 0;
-int e_flag = 0;
-int g_flag = 0;
-int i_flag = 0;
-int l_flag = 0;
-int L_flag = 0;
-int m_flag = 0;
-int M_flag = 0;
-int r_flag = 0;
-int s_flag = -1;
-int u_flag = 0;
-int U_flag = 0;
-int max_mount_count, mount_count;
-unsigned long interval;
-unsigned long reserved_ratio = 0;
-unsigned long reserved_blocks = 0;
-unsigned short errors;
-unsigned long resgid = 0;
-unsigned long resuid = 0;
-
-#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
+char * device_name;
+char * new_label, *new_last_mounted, *new_UUID;
+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;
+static int print_label;
+static int max_mount_count, mount_count, mount_flags;
+static unsigned long interval, reserved_ratio, reserved_blocks;
+static unsigned long resgid, resuid;
+static unsigned short errors;
+static int open_flag;
+static char *features_cmd;
+
+int journal_size, journal_flags;
+char *journal_device;
+
+static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
static void usage(void)
{
- fprintf(stderr, _("Usage: %s [-c max-mounts-count] [-e errors-behavior] "
- "[-g group]\n"
- "\t[-i interval[d|m|w]] [-l] [-s sparse-flag] "
- "[-m reserved-blocks-percent]\n"
- "\t[-r reserved-blocks-count] [-u user] [-C mount-count]\n"
- "\t[-L volume-label] [-M last-mounted-dir] [-U UUID]\n"
- "\t[-O [^]feature[,...]] device\n"), program_name);
+ fprintf(stderr,
+ _("Usage: %s [-c max-mounts-count] [-e errors-behavior] "
+ "[-g group]\n"
+ "\t[-i interval[d|m|w]] [-j] [-J journal-options]\n"
+ "\t[-l] [-s sparse-flag] [-m reserved-blocks-percent]\n"
+ "\t[-r reserved-blocks-count] [-u user] [-C mount-count]\n"
+ "\t[-L volume-label] [-M last-mounted-dir] [-U UUID]\n"
+ "\t[-O [^]feature[,...]] device\n"), program_name);
exit (1);
}
static __u32 ok_features[3] = {
- 0, /* Compat */
+ EXT3_FEATURE_COMPAT_HAS_JOURNAL, /* Compat */
EXT2_FEATURE_INCOMPAT_FILETYPE, /* Incompat */
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER /* R/O compat */
};
-static const char *please_fsck = N_("Please run e2fsck on the filesystem.\n");
+/*
+ * Remove an external journal from the filesystem
+ */
+static void remove_journal_device(ext2_filsys fs)
+{
+ char *journal_device;
+ ext2_filsys jfs;
+ char buf[1024];
+ journal_superblock_t *jsb;
+ int i, nr_users;
+ errcode_t retval;
+ int commit_remove_journal = 0;
-int main (int argc, char ** argv)
+ if (f_flag)
+ commit_remove_journal = 1; /* force removal even if error */
+
+ journal_device = ext2fs_find_block_device(fs->super->s_journal_dev);
+ if (!journal_device)
+ return;
+
+ retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
+ EXT2_FLAG_JOURNAL_DEV_OK, 0,
+ fs->blocksize, unix_io_manager, &jfs);
+ if (retval) {
+ com_err(program_name, retval,
+ _("while trying to open external journal"));
+ goto no_valid_journal;
+ }
+ if (!(jfs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
+ fprintf(stderr, "%s is not a journal device.\n",
+ journal_device);
+ goto no_valid_journal;
+ }
+
+ /* Get the journal superblock */
+ if ((retval = io_channel_read_blk(jfs->io, 1, -1024, buf))) {
+ com_err(program_name, retval,
+ _("while reading 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))) {
+ fprintf(stderr, _("Journal superblock not found!\n"));
+ 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) {
+ fprintf(stderr, "Filesystem's UUID not found on journal device.\n");
+ 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))) {
+ com_err(program_name, retval,
+ "while writing journal superblock.");
+ goto no_valid_journal;
+ }
+
+ commit_remove_journal = 1;
+
+no_valid_journal:
+ if (commit_remove_journal == 0) {
+ printf(_("Journal NOT removed\n"));
+ exit(1);
+ }
+ fs->super->s_journal_dev = 0;
+ memset(fs->super->s_journal_uuid, 0,
+ sizeof(fs->super->s_journal_uuid));
+ ext2fs_mark_super_dirty(fs);
+ printf(_("Journal removed\n"));
+}
+
+
+/*
+ * 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;
+ struct ext2_inode inode;
+ struct ext2_super_block *sb= fs->super;
+ errcode_t retval;
+
+ 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;
+ if (e2p_edit_feature(features, &sb->s_feature_compat,
+ ok_features)) {
+ fprintf(stderr, _("Invalid filesystem option set: %s\n"),
+ features);
+ exit(1);
+ }
+ 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;
+ if (old_journal && !journal) {
+ if ((mount_flags & EXT2_MF_MOUNTED) &&
+ !(mount_flags & EXT2_MF_READONLY)) {
+ fprintf(stderr,
+ _("The has_journal flag may only be "
+ "cleared when the filesystem is\n"
+ "unmounted or mounted "
+ "read-only.\n"));
+ exit(1);
+ }
+ if (sb->s_feature_incompat &
+ EXT3_FEATURE_INCOMPAT_RECOVER) {
+ fprintf(stderr,
+ _("The needs_recovery flag is set. "
+ "Please run e2fsck before clearing\n"
+ "the HAS_JOURNAL flag.\n"));
+ exit(1);
+ }
+ /*
+ * Remove the immutable flag on the journal inode
+ */
+ if (sb->s_journal_inum) {
+ retval = ext2fs_read_inode(fs, sb->s_journal_inum,
+ &inode);
+ if (retval) {
+ com_err(program_name, retval,
+ "while reading journal inode");
+ exit(1);
+ }
+ inode.i_flags &= ~EXT2_IMMUTABLE_FL;
+ retval = ext2fs_write_inode(fs, sb->s_journal_inum,
+ &inode);
+ if (retval) {
+ com_err(program_name, retval,
+ "while writing journal inode");
+ exit(1);
+ }
+ }
+ 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;
+ journal = old_journal;
+ }
+
+ 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) ||
+ (journal != old_journal)) {
+ sb->s_state &= ~EXT2_VALID_FS;
+ printf("\n%s\n", _(please_fsck));
+ }
+ ext2fs_mark_super_dirty(fs);
+}
+
+/*
+ * Add a journal to the filesystem.
+ */
+static void add_journal(ext2_filsys fs)
+{
+ unsigned long journal_blocks;
+ errcode_t retval;
+ ext2_filsys jfs;
+
+ if (fs->super->s_feature_compat &
+ EXT3_FEATURE_COMPAT_HAS_JOURNAL) {
+ fprintf(stderr, _("The filesystem already has a journal.\n"));
+ exit(1);
+ }
+ if (journal_device) {
+ check_plausibility(journal_device);
+ check_mount(journal_device, 0, _("journal"));
+ retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
+ EXT2_FLAG_JOURNAL_DEV_OK, 0,
+ fs->blocksize, unix_io_manager, &jfs);
+ if (retval) {
+ com_err(program_name, retval,
+ _("\n\twhile trying to open journal on %s\n"),
+ journal_device);
+ exit(1);
+ }
+ printf(_("Creating journal on device %s: "),
+ journal_device);
+ fflush(stdout);
+
+ retval = ext2fs_add_journal_device(fs, jfs);
+ if (retval) {
+ com_err (program_name, retval,
+ _("while adding filesystem to journal on %s"),
+ journal_device);
+ exit(1);
+ }
+ printf(_("done\n"));
+ ext2fs_close(jfs);
+ } else if (journal_size) {
+ printf(_("Creating journal inode: "));
+ fflush(stdout);
+ journal_blocks = figure_journal_size(journal_size, fs);
+
+ retval = ext2fs_add_journal_inode(fs, journal_blocks,
+ journal_flags);
+ if (retval) {
+ printf("\n");
+ com_err(program_name, retval,
+ _("\n\twhile trying to create journal file"));
+ exit(1);
+ } else
+ printf(_("done\n"));
+ /*
+ * 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;
+ }
+}
+
+/*
+ * Given argv[0], return the program name.
+ */
+static char *get_progname(char *argv_zero)
+{
+ char *cp;
+
+ cp = strrchr(argv_zero, '/');
+ if (!cp )
+ return argv_zero;
+ else
+ return cp+1;
+}
+
+
+static void parse_e2label_options(int argc, char ** argv)
+{
+ if ((argc < 2) || (argc > 3)) {
+ fprintf(stderr, _("Usage: e2label device [newlabel]\n"));
+ exit(1);
+ }
+ device_name = argv[1];
+ if (argc == 3) {
+ open_flag = EXT2_FLAG_RW;
+ L_flag = 1;
+ new_label = argv[2];
+ } else
+ print_label++;
+}
+
+
+static void parse_tune2fs_options(int argc, char **argv)
{
int c;
char * tmp;
- errcode_t retval;
- ext2_filsys fs;
- struct ext2fs_sb *sb;
struct group * gr;
struct passwd * pw;
- int open_flag = 0;
- char *features_cmd = 0;
-#ifdef ENABLE_NLS
- setlocale(LC_MESSAGES, "");
- bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
- textdomain(NLS_CAT_NAME);
-#endif
fprintf (stderr, _("tune2fs %s, %s for EXT2 FS %s, %s\n"),
E2FSPROGS_VERSION, E2FSPROGS_DATE,
EXT2FS_VERSION, EXT2FS_DATE);
- if (argc && *argv)
- program_name = *argv;
- initialize_ext2_error_table();
- while ((c = getopt (argc, argv, "c:e:g:i:lm:r:s:u:C:L:M:O:U:")) != EOF)
+ while ((c = getopt (argc, argv, "c:e:fg:i:jlm:r:s:u:C:J:L:M:O:U:")) != EOF)
switch (c)
{
case 'c':
optarg);
usage();
}
+ if (max_mount_count == 0)
+ max_mount_count = -1;
c_flag = 1;
open_flag = EXT2_FLAG_RW;
break;
e_flag = 1;
open_flag = EXT2_FLAG_RW;
break;
+ case 'f': /* Force */
+ f_flag = 1;
+ break;
case 'g':
resgid = strtoul (optarg, &tmp, 0);
if (*tmp) {
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(optarg);
+ open_flag = EXT2_FLAG_RW;
+ break;
case 'l':
l_flag = 1;
break;
if (!open_flag && !l_flag)
usage();
device_name = argv[optind];
+}
+
+
+
+int main (int argc, char ** argv)
+{
+ errcode_t retval;
+ ext2_filsys fs;
+ struct ext2_super_block *sb;
+
+#ifdef ENABLE_NLS
+ setlocale(LC_MESSAGES, "");
+ bindtextdomain(NLS_CAT_NAME, LOCALEDIR);
+ textdomain(NLS_CAT_NAME);
+#endif
+ if (argc && *argv)
+ program_name = *argv;
+ initialize_ext2_error_table();
+
+ if (strcmp(get_progname(argv[0]), "e2label") == 0)
+ parse_e2label_options(argc, argv);
+ else
+ parse_tune2fs_options(argc, argv);
+
retval = ext2fs_open (device_name, open_flag, 0, 0,
unix_io_manager, &fs);
if (retval) {
printf(_("Couldn't find valid filesystem superblock.\n"));
exit(1);
}
- sb = (struct ext2fs_sb *) fs->super;
+ sb = fs->super;
+ if (print_label) {
+ /* For e2label emulation */
+ printf("%.*s\n", (int) sizeof(sb->s_volume_name),
+ sb->s_volume_name);
+ exit(0);
+ }
+ 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);
+ exit(1);
+ }
+ /* Normally we only need to write out the superblock */
+ fs->flags |= EXT2_FLAG_SUPER_ONLY;
if (c_flag) {
- fs->super->s_max_mnt_count = max_mount_count;
+ 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) {
- fs->super->s_mnt_count = mount_count;
+ sb->s_mnt_count = mount_count;
ext2fs_mark_super_dirty(fs);
printf (_("Setting current mount count to %d\n"), mount_count);
}
if (e_flag) {
- fs->super->s_errors = errors;
+ sb->s_errors = errors;
ext2fs_mark_super_dirty(fs);
printf (_("Setting error behavior to %d\n"), errors);
}
- if (g_flag)
-#ifdef EXT2_DEF_RESGID
- {
- fs->super->s_def_resgid = resgid;
+ if (g_flag) {
+ sb->s_def_resgid = resgid;
ext2fs_mark_super_dirty(fs);
printf (_("Setting reserved blocks gid to %lu\n"), resgid);
}
-#else
- com_err (program_name, 0,
- _("The -g option is not supported by this version -- "
- "Recompile with a newer kernel"));
-#endif
if (i_flag) {
- fs->super->s_checkinterval = interval;
+ sb->s_checkinterval = interval;
ext2fs_mark_super_dirty(fs);
printf (_("Setting interval between check %lu seconds\n"), interval);
}
if (m_flag) {
- fs->super->s_r_blocks_count = (fs->super->s_blocks_count / 100)
+ sb->s_r_blocks_count = (sb->s_blocks_count / 100)
* reserved_ratio;
ext2fs_mark_super_dirty(fs);
printf (_("Setting reserved blocks percentage to %lu (%u blocks)\n"),
- reserved_ratio, fs->super->s_r_blocks_count);
+ reserved_ratio, sb->s_r_blocks_count);
}
if (r_flag) {
- if (reserved_blocks >= fs->super->s_blocks_count) {
+ if (reserved_blocks >= sb->s_blocks_count) {
com_err (program_name, 0,
_("reserved blocks count is too big (%ul)"),
reserved_blocks);
exit (1);
}
- fs->super->s_r_blocks_count = 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) {
-#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
if (sb->s_feature_ro_compat &
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER)
fprintf(stderr, _("\nThe filesystem already"
else {
sb->s_feature_ro_compat |=
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
- fs->super->s_state &= ~EXT2_VALID_FS;
+ sb->s_state &= ~EXT2_VALID_FS;
ext2fs_mark_super_dirty(fs);
printf(_("\nSparse superblock flag set. %s"),
_(please_fsck));
}
-#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
- com_err (program_name, 0,
- _("The -s option is not supported by this version -- "
- "Recompile with a newer kernel"));
-#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
}
if (s_flag == 0) {
-#ifdef EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
if (!(sb->s_feature_ro_compat &
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER))
fprintf(stderr, _("\nThe filesystem already"
else {
sb->s_feature_ro_compat &=
~EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
- fs->super->s_state &= ~EXT2_VALID_FS;
+ 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));
}
-#else /* !EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
- com_err (program_name, 0,
- _("The -s option is not supported by this version -- "
- "Recompile with a newer kernel"));
-#endif /* EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER */
}
-
- if (u_flag)
-#ifdef EXT2_DEF_RESUID
- {
- fs->super->s_def_resuid = resuid;
+ if (u_flag) {
+ sb->s_def_resuid = resuid;
ext2fs_mark_super_dirty(fs);
printf (_("Setting reserved blocks uid to %lu\n"), resuid);
}
-#else
- com_err (program_name, 0,
- _("The -u option is not supported by this version -- "
- "Recompile with a newer kernel"));
-#endif
if (L_flag) {
if (strlen(new_label) > sizeof(sb->s_volume_name))
fprintf(stderr, _("Warning: label too "
sizeof(sb->s_last_mounted));
ext2fs_mark_super_dirty(fs);
}
- if (features_cmd) {
- int sparse, old_sparse, filetype, old_filetype;
-
- old_sparse = sb->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
- old_filetype = sb->s_feature_incompat &
- EXT2_FEATURE_INCOMPAT_FILETYPE;
- if (e2p_edit_feature(features_cmd,
- &sb->s_feature_compat,
- ok_features)) {
- fprintf(stderr, _("Invalid filesystem option set: %s\n"),
- features_cmd);
- exit(1);
- }
- sparse = sb->s_feature_ro_compat &
- EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER;
- filetype = sb->s_feature_incompat &
- EXT2_FEATURE_INCOMPAT_FILETYPE;
- if ((sparse != old_sparse) ||
- (filetype != old_filetype)) {
- fs->super->s_state &= ~EXT2_VALID_FS;
- printf("\n%s\n", _(please_fsck));
- }
- ext2fs_mark_super_dirty(fs);
- }
+ 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) {
+ 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)) {
}
if (l_flag)
- list_super (fs->super);
+ list_super (sb);
ext2fs_close (fs);
exit (0);
}
git://git.whamcloud.com / tools / e2fsprogs.git / blobdiff