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>
If MMP is not enabled on a filesystem (s_mmp_block == 0), print this
clearly rather than "MMP: block number beyond filesystem range".
Add an option to "debugfs dump_mmp" to specify the MMP block number
instead of getting it from the superblock s_mmp_block field.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This code is partially derived from patches from David Turner to allow
debugfs to properly support extended timestamps.
Cc: David Turner <novalis@novalis.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Create separate predicate functions to test/set/clear feature flags,
thereby replacing the wordy old macros. Furthermore, clean out the
places where we open-coded feature tests.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The check_plausibility() function is now used all over the place, so
we should move the plausible.c file to lib/support and remove the
special case handling for that file that had been in the build system.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Implement a fallocate function for debugfs, and add some tests to
demonstrate that it works (more or less).
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Fix Coverity bugs 1297094-1297101 by fixing all the mutations in the
*_setup_tdb() functions, fixing buffer overflows, and checking
return values.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Provide the user with an option to create an undo file so that they
can roll back a failed debugfs expedition.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If any of these utilities detect a bad superblock magic, call
check_plausibility to see if blkid can identify the passed-in argument
as something else (xfs, partition, etc.) in the hopes of catching a
user error.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Check to make sure the length of the name and value fields in the
extended attribute don't result in overrun the bounds of the inode.
Addresses-Coverity-Bug: #709517
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Quiet warnings about signed vs. unsigned character mismatch.
Use __u8 for storing UUIDs instead of char to match the superblock
s_uuid field.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Provide an API to set i_size in an inode and take care of all required
feature flag modifications. Refactor the code to use this new
function.
[ Moved the function to lib/ext2fs/blk_num.c, which is the rest of
these sorts of functions live, and renamed it to be
ext2fs_inode_size_set() instead of ext2fs_inode_set_size() to be
consistent with the other functions in in blk_num.c -- tytso ]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Fix a few warnings about unused and uninitialized variables.
Also fix util/subst.c to include <sys/time.h> to avoid using
undeclared functions gettimeofday() and futimes().
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
When we're dumping a fast symlink inode, we print some odd things to
stdout. To clean this up, first don't print inline data EA, since the
inode dump doesn't display file and directory contents. Then, teach
the inode dump function how to print out either an inline data fast
symlink or a non-inline data fast symlink.
(This is a follow-up to the earlier patch "debugfs: Only print the
first 60 bytes from i_block on a fast symlink")
[ Modified by tytso so that the d_inline_dump test works when build
directory is different from the source directory --- i.e., when
doing a VPATH build. ]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Create a command that will dump an entire inode's space in hex.
[ Modified by tytso to add a description to the man page, and to add
the more formal command name, inode_dump, in addition to short
command name of "idump". ]
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Currently there are many uses of ext2fs_close() which might be wrong.
First of all ext2fs_close() does not set the ext2_filsys pointer to NULL
so the caller is responsible for clearing it, however there are some
cases there we do not do it.
Second of all very small number of users of ext2fs_close() actually
check the return value. If there is a problem in ext2fs_close() it will
not even free the ext2_filsys structure, but majority of users expect it
to do so.
To fix both problems this commit introduces a new helper
ext2fs_close_free() which will not only check for the return value and
free the ext2_filsys structure if the call to ext2fs_close2() failed,
but it will also set the ext2_filsys pointer to NULL.
Replace every use of ext2fs_close() in e2fsprogs tools with
ext2fs_close_free() - there is no real reason to keep using
ext2fs_close().
Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
After enabling symlink with inline data, stat command in debugfs will
think an inode is a fast symlink. This patch fixes this issue.
Cc: Ian Nartowicz <claws@nartowicz.co.uk>
Cc: Tao Ma <tm@tao.ma>
Cc: "Darrick J. Wong" <darrick.wong@oracle.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Fix a file handle leak for the target file in copy_file() when error
handlers return without closing the file. Instead, clean up at the
end of the function to handle cleanup in normal and error cases.
Minor other code style cleanups.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This allows us to verify quota information in an ext4 file systems
with the quota feature.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Aditya Kali <adityakali@google.com>
Fix a few minor bugs that cppcheck complained about.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Fix a number of things that cppcheck complains about. Most of these
are minor resource leaks and forgotten declarations.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Enhance debugfs to be able to display and modify extended attributes, and
create some simple tests for the extended attribute editing functions.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add magic number checking to the extended attribute editing handle;
move inline data to the head of the attribute list when writing so
that inline data ends up in the inode area; and always zero the
attribute space before writing to ensure that we can delete the last
xattr.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Since create_inode.c is shared between debugfs and mke2fs, don't
spread debugfs internal state into mke2fs.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
* Use the functions in misc/create_inode.c, and remove the duplicated
code.
* The CREATE_INODE_DEPS in the debugfs/Makefile.in is used for recording
create_inode.o's depends which is from misc/Makefile.in, we have to
recompile create_inode.o because we need it to print more messages when
it is used by debugfs, just like we recompile e2freefrag.o, but it seems
that the e2freefrag.o's depends in debugfs/Makefile.in is incorrect, it
would not rebuild when its depends (e.g.: lib/config.h) is changed,
which would cause unexpected errors. Make duplicated code in
debugfs/Makefile.in and misc/Makefile.in is not a good idea, maybe we'd
better define CREATE_INODE_DEPS in the top Makefile, I'd like to send
another patch and fix the e2freefrag if you are fine with it.
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Currently ext2fs_file_read/write are used to copy data from/to a file.
But they manipulate data by blocksize. For supporting inline data, we
handle it in two new fucntions called ext2fs_file_read/write_inline_data.
In read path the implementation is straightforward. But in write path
things get more complicated because if the size of data is greater than
the maximum size of inline data we will expand this file. So now we
will check this in ext2fs_inline_data_set. If this inode doesn't have
enough space, it will return EXT2_ET_INLINE_DATA_NO_SPACE error. Then
the caller will check this error and tries to expand the file.
The following commands in debugfs can handle inline_data feature after
applying this patch:
- dump
- cat
- rdump
- write
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
If there is an inode with inline data, we just print the size of inline
data in stat command.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
After applied this commit (a7f4c635), we have banned to traverse blocks
for an inode which has inline data because no block belongs to it. But
before calling this function, we need to check inline data flag. This
commit add a sanity check ext2fs_inode_has_valid_blocks2() to fix them
except that ext2fs_expand_dir because it will be fixed by another patch.
Meanwhile in this commit it fixes a bug that when we kill a file we
could leak an inode.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Use the new extended attribute APIs to display all extended attributes
(current code does not look in the EA block) and display full names
(current code ignores name index too).
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
In response to reviewer comments, commit fe56188b07 included changes
that modified some of the code used to output error messages when
checking user-supplied block numbers. These changes converted calls
to parse_ulonglong() to calls to strtoblk(). Because strtoblk() calls
parse_ulonglong(), and both output error messages, two redundant and
relatively generic messages were output on each error.
Fix this by removing the error message output from strtoblk(), and
extending it to accept an optional error message argument that it
supplies in lieu of a default to parse_ulonglong(). Also, revert to
the more descriptive original error messages with mods per reviewer
comments, and fix an error message in do_replace_node().
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Commit a17e9f30 set up the extent header for a new file.
Unfortunately it didn't correctly handle byte swapping; fix this so
the regression tests pass on PowerPC systems.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eric Sandeen <sandeen@redhat.com>
Theodore Ts'o