mirror of https://github.com/vitalif/e2fsprogs
tune2fs: explicitly disallow tuning of journal devices
Spit out a more specific error if someone tries to modify an external journal device. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reported-by: TR Reardon <thomas_reardon@hotmail.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>crypto
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6aabb75493
commit
811bccef89
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@ -2539,7 +2539,7 @@ retry_open:
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if ((open_flag & EXT2_FLAG_RW) == 0 || f_flag)
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open_flag |= EXT2_FLAG_SKIP_MMP;
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open_flag |= EXT2_FLAG_64BITS;
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open_flag |= EXT2_FLAG_64BITS | EXT2_FLAG_JOURNAL_DEV_OK;
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/* keep the filesystem struct around to dump MMP data */
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open_flag |= EXT2_FLAG_NOFREE_ON_ERROR;
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@ -2569,6 +2569,12 @@ retry_open:
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ext2fs_free(fs);
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exit(1);
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}
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if (EXT2_HAS_INCOMPAT_FEATURE(fs->super,
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EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
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fprintf(stderr, "%s", _("Cannot modify a journal device.\n"));
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ext2fs_free(fs);
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exit(1);
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}
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fs->default_bitmap_type = EXT2FS_BMAP64_RBTREE;
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if (I_flag && !io_ptr_orig) {
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@ -0,0 +1,6 @@
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Creating filesystem with 4096 1k blocks and 0 inodes
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Superblock backups stored on blocks:
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Zeroing journal device:
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tune2fs external journal
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Cannot modify a journal device.
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@ -0,0 +1 @@
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tune2fs fail external journal
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@ -0,0 +1,30 @@
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FSCK_OPT=-fy
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OUT=$test_name.log
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if [ -f $test_dir/expect.gz ]; then
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EXP=$test_name.tmp
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gunzip < $test_dir/expect.gz > $EXP1
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else
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EXP=$test_dir/expect
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fi
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cp /dev/null $OUT
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$MKE2FS -F -o Linux -b 1024 -O journal_dev,metadata_csum -T ext4 $TMPFILE 4096 2>&1 | sed -f $cmd_dir/filter.sed >> $OUT 2>&1
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echo "tune2fs external journal" >> $OUT
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$TUNE2FS -i 0 $TMPFILE 2>&1 | sed -f $cmd_dir/filter.sed >> $OUT
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rm -f $TMPFILE
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cmp -s $OUT $EXP
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status=$?
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if [ "$status" = 0 ] ; then
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echo "$test_name: $test_description: ok"
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touch $test_name.ok
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else
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echo "$test_name: $test_description: failed"
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diff $DIFF_OPTS $EXP $OUT > $test_name.failed
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rm -f $test_name.tmp
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fi
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unset IMAGE FSCK_OPT OUT EXP
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