Invalid extra isize fields can cause crashes in e2fsprogs and possibly
in the kernel for some architectures due to unaligned accesses.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
We need to prevent unaligned accesses, so treat any extra_isize which
is not a multiple of four as an bug.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
On platforms that don't permit unaligned pointer dereferences,
corrupted file systems will as used by the regression test suite can
cause e2fsck and debugfs to crash. Avoid those crashes caused by
corrupted file systems. With this commit the full set of regression
test suites will pass on the sparc64 platform.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Fix a typo in the @ifNotGNUmake@ case of MCONFIG.in.
Also allow the FORCE_NATIVE_MAKE to force the use of the non-GNU make
optimized Makefile. The resulting makefile will work with GNU Make
4.2.1, although "make V=1" won't be honored.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Commit 35a4e1b1c5 introduced a regression which caused e2fsck on
32-bit systems to think all timestamps were legacy pre-1970
timestamps. Fix the bug.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The configure file needs to be run using a relative pathname so that
when $(srcdir) gets introduced into binary file, the location of the
build directory doesn't find its way into the binaries.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The mk_cmds and compile_et scripts include the build directory, which
breaks the build reproducibility goal of Debian.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Recent research has shown that for a metadata-heavy workload, a 128 MB
is journal be a bottleneck on HDD's, and that the optimal journal size
is proportional to number of unique metadata blocks that can be
modified (and written into the journal) in a 30 second window. One
gigabyte should be sufficient for most workloads, which will be used
for file systems larger than 128 gigabytes.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
A static code checker noticed that we had a redundant condition:
if (((sizeof(time_t) <= 4) ||
((sizeof(time_t) > 4) &&
which was caused by the parenthesis were in the wrong place.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The message requesting that the user run e2fsck doesn't include the -f
option, and this is needed to force a file system check.
Addresses-Debian-Bug: #828022
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
llvm warns about the confusingly written comparison:
!strncmp(argv[i+1], "-", 1) == 0) {
misc/fsck.c:1178 col 9: warning: logical not is only applied to
the left hand side of comparison [-Wlogical-not-parentheses]
misc/fsck.c:1178 col 9: note: add parentheses after the '!' to
evaluate the comparison first
misc/fsck.c:1178 col 9: note: add parentheses around left hand
side expression to silence this warning
It makes sense to simplify this to a character comparison rather
than using strncmp() to check only one character.
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This new manager is similar to the unix_io_manager except it takes a
file descriptor as first argument instead of a filename.
Some programs may want libext2fs to directly use a fd instead of
letting it opening the file.
The use case for such a io_manager would be to let programs use
a fd even if the filename is unknown:
- the fd comes from a temporary file (O_TMPFILE);
- the fd comes from a unix socket...
Refactoring unix_open() also fix a bug when the IO_DIRECT flag was
specified: ext2fs_get_dio_alignment() was called before the file was
actually opened, resulting in an alignment of 0.
Signed-off-by: Adrien Schildknecht <adriens@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
When a ext2_filsys is freed, ext2fs_zero_blocks2() frees the buffer but
does not reset its size.
If this function is later called with a new ext2_filsys, the code
assumes that the buffer is still valid and return a NULL pointer.
Valgrind output:
==188948== Syscall param pwrite64(buf) points to unaddressable byte(s)
==188948== at 0x4E46D03: __pwrite_nocancel (syscall-template.S:81)
==188948== by 0x1254EC: raw_write_blk (unix_io.c:240)
==188948== by 0x124AAB: unix_write_blk64 (unix_io.c:850)
==188948== by 0x122893: ext2fs_zero_blocks2 (mkjournal.c:204)
Signed-off-by: Adrien Schildknecht <adriens@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This fixes a bug introduced in 1.43 by commit fb47b94fffc: "resize2fs:
rewrite extent/dir/ea block checksums when migrating". If there is an
extended attribute block and there are no blocks that need to migrate,
we will crash.
The bug was caused by a botched De Morgan's transformation.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
In m_minrootdir, on FreeBSD 9.3, try_lseek_copy() fails on an empty file
because errcode is uninitialized and the while() loop never executes,
and the errcode garbage is returned.
Initialize errcode = 0 in try_lseek_copy() to avoid a "fail" result when
there was nothing to copy.
Signed-off-by: Matthias Andree <matthias.andree@gmx.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
When journal is released, s_sequence is set to j_tail_sequence.
But, currently, even if the recovery process is successfully completed,
the j_tail_sequence and, finally, s_sequence are never changed. By this,
when we repeat doing power-off the device suddenly and executing e2fsck
without full scan before mount, the s_sequence number will never change
and, in a very rare case, newly generated journal logs will be
surprisingly grafted to the old journal logs. In this case, out-of-date
metadata log can be replayed on the filesystem area and the filesystem
can be crashed unintentionally by journal recovery process. Therefore,
we need to update j_tail_sequence after recovery process is successfully
completed in e2fsck.
Youngjin had repeated this test and found the problem. With our test,
the filesystem crash occurred within 4 hours.
Signed-off-by: Youngjin Gil <youngjin.gil@samsung.com>
Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
It otherwise leads to build failure when using an unbundled libintl.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Two new e2undo issues exist in the latest release on big endian
machines.
From sparse check:
undo_io.c:157:26: warning: invalid assignment: |=
undo_io.c:157:26: left side has type restricted __le32
undo_io.c:157:26: right side has type int
undo_io.c:161:26: warning: invalid assignment: &=
undo_io.c:161:26: left side has type restricted __le32
undo_io.c:161:26: right side has type int
e2undo.c:211:16: warning: cast to restricted __le64
e2undo.c:211:16: warning: cast from restricted blk64_t
e2undo.c:212:16: warning: cast to restricted __le64
e2undo.c:212:16: warning: cast from restricted blk64_t
Addresses-RedHat-Bugzilla: 1344636
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Only install the manual page if fuse2fs itself will be installed.
Signed-off-by: Ingo Brückl <ib@wupperonline.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
It uses clock_gettime() which in older glibc versions is in librt.
Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
FreeBSD 11 will remove the DIOCGINFO ioctl(), so check if it is defined
before referencing it.
Signed-off-by: Matthias Andree <matthias.andree@gmx.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If there is a feature check, we can just depend on the feature check.
If it is something that can't be checked via a feature flag, then
instead of checking for EXT2_OS_LINUX, we should instead check for
*NOT* EXT2_OS_HURD. since HURD is the special case.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
How libmagic will behave is not necessarily stable across different
operating systems of versions of libmagic (or the magic number
database). So suppress it to avoid false test failures.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Unfortunately, FreeBSD doesn't support sparse files in their tmpfs,
and they generlaly don't mount a tmpfs on /tmp anyway. As a result
certain tests will either OOM kill a FreeBSD (if tmpfs is in use) or
will take forever (if it is not in use).
So let's turn off some tests for FreeBSD (m_hugefile is disabled on
MacOS already, for similar reasons). We need to find a better
solution in the long term, but for now, these tests are guaranteed to
be a disaster on FreeBSD, so suppress them for now.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The s_creator_os field was a mistake, given how Hurd has been
ab(using) certain file system fields. We should skip support for
certain advanced features (64-bit support, metadata checksums) for
file systems created on the Hurd OS only, instead of only supporting
them for file systems created on Linux. This fixes various regression
test failures for FreeBSD.
(The regression tests are probably mostly hopeless for Hurd anyway,
but given the HURD abuse's of various file system fields, the HURD is
going to have to be given second-class treatment in any case, given
what they decided to do with ext2 support, which locks them out of the
more advanced file system features, anyway.)
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The debugging environment variables EXT2FS_PRETEND_* were implemented
in check_mntent_file(), and this function isn't called on all
operating systems. Lift this code up to ext2fs_check_mount_point(),
so that these environment variables (which are used in the regression
test suite) will work on all platforms.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Theodore Ts'o