Wagner Popov dos Santos authored 4 years ago and Tom Rini committed 3 years ago

The function jffs2_1pass_read_inode() was discarding the summary
inodes and dirent because the value in datacrc flag wasn't
initialized in function jffs2_sum_process_sum_data().

This fix initializes the status of all summary records to indicate
that the CRC needs to be verified when they are loaded.

Before this fix, the behaviors produced by the undefined value of
datacrc was:
- Summary's registries were discarded when 'b->datacrc' is equal
  as 'CRC_BAD'.
- Summary's registries were not checked when b->datacrc differs of
  'CRC_BAD' and 'CRC_UNKNOWN'

So, almost all of the time the crc just isn't checked, and in some
cases the registries are discarded.

Signed-off-by: Wagner Popov dos Santos <wpopov@gmail.com>

Wagner Popov dos Santos authored 4 years ago and Tom Rini committed 3 years ago

Fixes address violation in functions read_nand_cached() and
read_onenand_cached(). This happens because these functions
try to read a fixed amount
of data even when the offset+length
is above the nand's limit.

Signed-off-by: Wagner Popov dos Santos <wpopov@gmail.com>

The results of malloc() are a void * and so this cast is unnecessary. Drop
it.

Signed-off-by: Simon Glass <sjg@chromium.org>

CBFS now supports compressed filed. Add support for reading this
information so that the correct decompression can be applied. The
decompression itself is not implemented in CBFS.

Signed-off-by: Simon Glass <sjg@chromium.org>

In file_cbfs_next_file() there is a lot of complicated code to move to
the next file. Use the ALIGN() macros to simplify this.

Signed-off-by: Simon Glass <sjg@chromium.org>

The file_cbfs_next_file() function is already fairly long. Before
expanding it further, move the core part into a separate function.

Signed-off-by: Simon Glass <sjg@chromium.org>

The file traversal functions currently use a single global CBFS. In some
cases we need to access multiple CBFSs to obtain different files. Add new
functions to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>

In some cases CBFS does not start with a header but is just a collection
of files. It is possible to support this so long as the size of the CBFS
is provided.

Update the cbfs_init_mem() function to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>

Rename this variable since there is no need to distinguish it from an old
node.

Signed-off-by: Simon Glass <sjg@chromium.org>

CBFS now supports attributes for things that cannot fit in the header as
originally conceived. Add the structures for these.

Also rename attributes_offset to something shorter, to ease code
readability.

Signed-off-by: Simon Glass <sjg@chromium.org>

This contributor prefers not to receive mails authored 4 years ago and Tom Rini committed 4 years ago

Commit 401d1c4f ("common: Drop
asm/global_data.h from common header") broke compilation of squashfs
filesystem when CONFIG_CMD_SQUASHFS=y is enabled.

Compilation is failing on error:

    aarch64-linux-gnu-ld.bfd: u-boot/fs/squashfs/sqfs_inode.c:121: undefined reference to `le32_to_cpu'

Fixes: 401d1c4f ("common: Drop asm/global_data.h from common header")
Suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Tom Rini <trini@konsulko.com>

Marek Behún authored 4 years ago and Tom Rini committed 4 years ago

When the btrfs_read_fs_root() function is searching a ROOT_ITEM with
location key offset other than -1, it currently fails via BUG_ON.

The offset can have other value than -1, though. This can happen for
example if a subvolume is renamed:

  $ btrfs subvolume create X && sync
  Create subvolume './X'
  $ btrfs inspect-internal dump-tree /dev/root | grep -B 2 'name: X$
        location key (270 ROOT_ITEM 18446744073709551615) type DIR
        transid 283 data_len 0 name_len 1
        name: X
  $ mv X Y && sync
  $ btrfs inspect-internal dump-tree /dev/root | grep -B 2 'name: Y$
        location key (270 ROOT_ITEM 0) type DIR
        transid 285 data_len 0 name_len 1
        name: Y

As can be seen the offset changed from -1ULL to 0.

Do not fail in this case.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: David Sterba <dsterba@suse.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Tom Rini <trini@konsulko.com>

Marek Behún authored 4 years ago and Tom Rini committed 4 years ago

Since commit 325dd1f6 ("fs: btrfs: Use btrfs_iter_dir() to ...")
when btrfs is listing a directory, the output is not aligned:

  <SYMLINK>         15  Wed Sep 09 13:20:03 2020  boot.scr -> @/boot/boot.scr
  <DIR>          0  Tue Feb 02 12:42:09 2021  @
  <FILE>        108  Tue Feb 02 12:54:04 2021  1.info

Return back to how it was displayed previously, i.e.:

  <SYM>         15  Wed Sep 09 13:20:03 2020  boot.scr -> @/boot/boot.scr
  <DIR>          0  Tue Feb 02 12:42:09 2021  @
  <   >        108  Tue Feb 02 12:54:04 2021  1.info

Instead of '<FILE>', print '<   >', as ext4 driver.

If an unknown directory item type is encountered, we will print the type
number left padded with spaces, enclosed by '?', instead of '<' and '>',
i.e.:

  ? 30?        .............................  name

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Fixes: 325dd1f6 ("fs: btrfs: Use btrfs_iter_dir() to replace ...")
Cc: David Sterba <dsterba@suse.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>

Marek Behún authored 4 years ago and Tom Rini committed 4 years ago

Skip xattrs in directory listing. U-Boot filesystem drivers do not list
xattrs.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: David Sterba <dsterba@suse.com>
Cc: Qu Wenruo <wqu@suse.com>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

sqfs_opendir() called in sqfs_size(), sqfs_read(), sqfs_exists() may fail
leading to sqfs_closedir(NULL) being called. Do not dereference NULL.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The FAT32 File System Specification [1] requires leading and trailing
spaces as well as trailing periods of long names to be ignored.

[1]
    Microsoft Extensible Firmware Initiative
    FAT32 File System Specification
    Version 1.03, December 6, 2000
    Microsoft Corporation
    https://www.win.tue.nl/~aeb/linux/fs/fat/fatgen103.pdf



Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Directories or files called '.' or '..' cannot be created or written to
in any directory. Move the test to normalize_longname() to check this
early.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

This patch involves no functional change. It is just about code
readability.

Both in file_fat_write_at() and fat_mkdir() the incoming file or directory
path are split into two parts: the parent directory and the base name.

In file_fat_write_at() the value of the variable basename is assigned to
the filename parameter and afterwards the variable filename is used instead
of basename. It is more readable to use the variable basename and leave
filename unchanged.

In fat_mkdir() the base name variable is called directory. This is
confusing. Call it basename like in file_fat_write_at(). This allows to
rename parameter new_directory to directory in the implementation of
fat_mkdir() to match the function declaration.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

Simon Glass authored 4 years ago and Tom Rini committed 4 years ago

Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

The load command should not silently return to the console prompt if an
invalid block device is specified and no file is loaded.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

Matthias Brugger authored 4 years ago and Tom Rini committed 4 years ago

Since commit 565a4147 ("fs: btrfs: Add more checksum algorithms")
btrfs uses the sha256 checksum algorithm. But Kconfig lacks to select
it. This leads to compilation errors:
fs/built-in.o: In function `hash_sha256':
fs/btrfs/crypto/hash.c:25: undefined reference to `sha256_starts'
fs/btrfs/crypto/hash.c:26: undefined reference to `sha256_update'
fs/btrfs/crypto/hash.c:27: undefined reference to `sha256_finish'

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Qu Wenruo <wqu@suse.com>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

Do not assign a value to a variable if it is not used.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

When copying short name plus extension refer to the encapsulating structure
and not to the short name element.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The short name and extension of FAT files are stored in adjacent fields of
the directory entry. For some operations like calculating a checksum or
copying both fields it is preferable to treat both as one structure.

Change the definition of the directory entry structure to include a
structure comprising the name and the extension field.

This resolves Coverity CID 316357, CID 316350, CID 316348.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Provide function description for flush_dir().
Move all error messages for flush_dir() from the callers to the function.
Move mapping of errors to -EIO to the function.
Always check return value of flush_dir() (Coverity CID 316362).

In fat_unlink() return -EIO if flush_dirty_fat_buffer() fails.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

Before 'if (err)' we have to initialize the variable otherwise we use a
random value from the stack.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Heinrich Schuchardt authored 4 years ago and Tom Rini committed 4 years ago

At the beginning of close_ctree_fs_info() the value 0 is assigned to err
and never changed before testing it.

Let's get rid of the superfluous variable.

Fixes: f06bfcf5 ("fs: btrfs: Crossport open_ctree_fs_info() from btrfs-progs")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>

Campbell Suter authored 4 years ago and Tom Rini committed 4 years ago

SquashFS supports sprase blocks in files - that is, if a given block is
composed only of zeros, it's not written to the output file to save
space and it's on-disk length field is set to zero to indicate that.

Previously the squashfs driver did not recognise that, and would attempt
to read and decompress a zero-sized block, which obviously failed.

The following command may be used to create a file for testing:

cat <(dd if=/dev/urandom of=/dev/stdout bs=1M count=1) \
	<(dd if=/dev/zero of=/dev/stdout bs=1M count=1) \
	<(dd if=/dev/urandom of=/dev/stdout bs=1k count=200) >test_file

Signed-off-by: Campbell Suter <campbell@snapit.group>

Qu Wenruo authored 4 years ago and Tom Rini committed 4 years ago

In __btrfs_map_block() we do a int * int and assign it to u64.
This is not safe as the result (int * int) is still evaluated as (int)
thus it can overflow.

Convert one of the multiplier to u64 to prevent such problem.

In real world, this should not cause problem as we have device number
limit thus it won't go beyond 4G for a single stripe.

But it's harder to teach coverity about all these hidden limits, so just
fix the possible overflow.

Reported-by: Coverity CID 312957
Reported-by: Coverity CID 312948
Signed-off-by: Qu Wenruo <wqu@suse.com>

Up to now the bootefi command used the last file loaded to determine the
boot partition. This has led to errors when the fdt had been loaded from
another partition after the EFI binary.

Before setting the boot device from a loaded file check if it is a PE-COFF
image or a FIT image.

For a PE-COFF image remember address and size, boot device and path.

For a FIT image remember boot device and path.

If the PE-COFF image is overwritten by loading another file, forget it.

Do not allow to start an image via bootefi which is not the last loaded
PE-COFF image.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The FAT file system does not have a UUID but a 4 byte volume ID.
Let the fsuuid command show it in XXXX-XXXX format.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

The FAT filesystem implementation uses several marcros referring to a magic
variable name mydata which renders the code less readable. Eliminate one of
them which is only used for a debug() statement.

Use log_debug() instead of debug().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>

Long file names are stored in multiple directory entries. When deleting a
file we must delete all of them.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

A long name is split over multiple directory entries. When deleting a file
with a long name we need the first directory entry to be able to delete the
whole chain.

Add the necessary fields to the FAT iterator:

* cluster of first directory entry
* address of first directory entry
* remaining entries in cluster

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

When deleting a directory entry 0xe5 is written to name[0].

We have a constant for this value and should use it consistently.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Searching for a file is not a write operation. So it should not lead to the
allocation of a new cluster to the directory.

If we reuse deleted entries, we might not even use the new cluster and due
to not flushing it the directory could be corrupted.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

When creating new directory entries try to reuse entries marked as deleted.

In fill_dir_slot() do not allocate new clusters as this has already been
done in fat_find_empty_dentries().

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

Provide a function to find a series of empty directory entries.

The current directory is scanned for deleted entries.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

When handling long file names directory entries may be split over multiple
clusters. We must make sure that new clusters are zero filled on disk.

When allocating a new cluster for a directory flush it.

The flushing should be executed before updating the FAT. This way if
flushing fails, we still have a valid directory structure.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

When iterating over a child directory we set itr->start_clust.
Do the same when over the root directory.

When looking for deleted directory entries or existing short names we will
have to iterate over directories a second and third time. With this patch
we do not need any special logic for the root directory.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>