Commit Graph

825 Commits

Author SHA1 Message Date
Simon Glass
401d1c4f5d common: Drop asm/global_data.h from common header
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>
2021-02-02 15:33:42 -05:00
Heinrich Schuchardt
ec9d19be8d cmd: load, emit error message for invalid block device
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>
2021-02-01 16:32:06 -05:00
Matthias Brugger
8921ac9747 fs: btrfs: Select SHA256 in Kconfig
Since commit 565a4147d1 ("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>
2021-01-29 10:36:49 -05:00
Heinrich Schuchardt
84ca3055f0 fs: fat: remove superfluous assignments
Do not assign a value to a variable if it is not used.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2021-01-29 10:36:48 -05:00
Heinrich Schuchardt
41ac28c672 fs: fat: avoid out of bounds access warning
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>
2021-01-29 10:36:48 -05:00
Heinrich Schuchardt
041f0af366 fs: fat: structure for name and extension
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>
2021-01-23 07:56:53 +01:00
Heinrich Schuchardt
e97eb638de fs: fat: consistent error handling for flush_dir()
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>
2021-01-23 07:56:53 +01:00
Heinrich Schuchardt
81f562719e ubifs: do not decide upon uninitialized variable
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>
2021-01-20 14:01:45 -05:00
Heinrich Schuchardt
3b00a6bafc fs: btrfs: simplify close_ctree_fs_info()
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: f06bfcf54d ("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>
2021-01-20 14:01:45 -05:00
Campbell Suter
9dba07f143 Fix squashfs failing to load sparse files
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>
2021-01-20 14:01:44 -05:00
Qu Wenruo
3b72612ad1 fs: btrfs: volumes: prevent overflow for multiplying
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>
2021-01-20 14:01:08 -05:00
Heinrich Schuchardt
5f59518a7b efi_loader: setting boot device
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>
2021-01-13 02:38:00 +01:00
Tom Rini
720620e691 Prepare v2021.01-rc5
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Merge tag 'v2021.01-rc5' into next

Prepare v2021.01-rc5

Signed-off-by: Tom Rini <trini@konsulko.com>
2021-01-05 16:20:26 -05:00
Heinrich Schuchardt
c0029e4e25 fs/fat: implement fsuuid command
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>
2020-12-31 14:32:27 +01:00
Heinrich Schuchardt
d0be67657d fs: fat: eliminate DIRENTSPERBLOCK() macro
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>
2020-12-31 14:32:02 +01:00
Heinrich Schuchardt
3d20d212cf fs: fat: deletion of long file names
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>
2020-12-10 09:15:00 +01:00
Heinrich Schuchardt
89735b44c4 fs: fat: first dentry of long name in FAT iterator
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>
2020-12-10 09:15:00 +01:00
Heinrich Schuchardt
4a593dd0c5 fs: fat: use constant DELETED_FLAG
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
1e51c8d64a fs: fat: search file should not allocate cluster
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
3049a5106c fs: fat: reuse deleted directory entries
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
32a5f887c4 fs: fat: fat_find_empty_dentries()
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
569b0e1938 fs: fat: flush new directory cluster
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
7557c84855 fs: fat: set start cluster for root directory
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>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
27ed690382 fs: fat: dentry iterator for fill_dir_slot()
For reusing deleted directory entries we have to adjust the function called
to step to the next directory entry.

This patch alone is not enough to actually reuse deleted directory entries
as the fill_dir_slot() is still called with first never used directory
entry.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
3a331aee56 fs: fat: generate unique short names
File names must be unique within their directory. So before assigning a
short name we must check that it is unique.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
57b745e238 fs: fat: call set_name() only once
In set_name() we select the short name. Once this is correctly implemented
this will be a performance intensive operation because we need to check
that the name does not exist yet. So set_name should only be called once.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
a343249bef fs: fat: pass shortname to fill_dir_slot
Currently we pass the short name via the directory iterator.
Pass it explicitly as a parameter.

This removes the requirement to set the short name in the iterator before
writing the long name.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:59 +01:00
Heinrich Schuchardt
28cef9ca2e fs: fat: create correct short names
The current function set_name() used to create short names has the
following deficiencies resolved by this patch:

* Long names (e.g. FOO.TXT) are stored even if a short name is enough.
* Short names with spaces are created, e.g. "A     ~1.TXT".
* Short names with illegal characters are created, e.g. "FOO++BAR".
* Debug output does not not consider that the short file name has no
  concluding '\0'.

The solution for the following bug is split of into a separate patch:

* Short file names must be unique.

This patch only provides the loop over possible short file names.

Fixes: c30a15e590 ("FAT: Add FAT write feature")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:58 +01:00
Heinrich Schuchardt
d236e825a2 fs: fat: export fat_next_cluster()
Rename function next_cluster() to fat_next_cluster() and export it.

When creating a new directory entries we should reuse deleted entries.
This requires re-scanning the directory.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-12-10 09:14:58 +01:00
Heinrich Schuchardt
c5924118c0 fs: fat: correct first cluster for '..'
The FAT specification [1] requires that for a '..' directory entry pointing
to the root directory the fields DIR_FstClusHi and DIR_FstClusLo are 0.

[1] Microsoft FAT Specification, Microsoft Corporation, August 30 2005

Fixes: 31a18d570d ("fs: fat: support mkdir")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
2020-12-10 09:14:58 +01:00
Richard Genoud
7e932ac790 fs/squashfs: sqfs_close/sqfs_read_sblk: set ctxt.sblk to NULL after free
This will prevent a double free error if sqfs_close() is called twice.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-12-02 16:21:58 -05:00
Heinrich Schuchardt
1ec29aa306 fs: fat: use ATTR_ARCH instead of anonymous 0x20
Using constants instead of anonymous numbers increases code readability.

Fixes: 704df6aa0a ("fs: fat: refactor write interface for a file offset")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-11-29 05:18:16 +01:00
Heinrich Schuchardt
a2c5a92d48 fs: fat: directory entries starting with 0x05
0x05 is used as replacement letter for 0xe5 at the first position of short
file names. We must not skip over directory entries starting with 0x05.

Cf. Microsoft FAT Specification, August 30 2005

Fixes: 39606d462c ("fs: fat: handle deleted directory entries correctly")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-11-29 05:18:16 +01:00
Heinrich Schuchardt
661d223868 fs: fat: avoid NULL dereference when root dir is full
When trying to create a file in the full root directory of a FAT32
filesystem a NULL dereference can be observed.

When the root directory of a FAT16 filesystem is full fill_dir_slot() must
return -1 to signal that a new directory entry could not be allocated.

Fixes: cd2d727fff ("fs: fat: allocate a new cluster for root directory of fat32")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2020-11-29 05:18:16 +01:00
Richard Genoud
dd4866b437 fs/squashfs: implement exists() function
This permits to find a file and use the distro_bootcmd

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
21b1b3bad5 fs/squashfs: sqfs_read: remove buggy offset functionality
offset is the offset in the file read, not the offset in the destination
buffer.
If the offset is not null, this will lead to a memory corruption.
So, for now, we are returning an error if the offset is used.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
cbd5e40ede fs/squashfs: sqfs_read: don't write beyond buffer size
The length of the buffer wasn't taken into account when writing to the
given buffer.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
6d25bd3e9c fs/squashfs: sqfs_probe: use sqfs_decompressor_init() return value
sqfs_decompressor_init() returns a value, so it's better to use it than
to force the return value to EINVAL (it could be ENOMEM)

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
56cf1ceee3 fs/squashfs: sqfs_probe: reset cur_dev/cur_part_info to NULL on error
Resetting the context on error will prevent some checks like:
if (!ctx.cur_dev)
To pass when the probe method has failed

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
ccd4c08a45 fs/squashfs: sqfs_probe: fix possible memory leak on error
If SquashFS magic number is invalid, there's a memory leak.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
571b67ee1d fs/squashfs: sqfs_read: fix memory leak on finfo.blk_sizes
finfo.blk_sizes may not be freed in case of error in the for loop
Setting it to null and freeing it at the end makes prevents that from
happening.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
33686804d2 fs/squashfs: sqfs_get_abs_path: fix possible memory leak on error
if  sqfs_tokenize(rel_tokens, rc, rel); fails, the function exits
without freeing the array base_tokens.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
53db0e24a8 fs/squashfs: sqfs_get_abs_path: fix error check
the return value of sqfs_tokenize(rel_tokens, rc, rel); wasn't checked.
(but "ret" value was !)
This is obviouly a typo.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
c9b8e86f8b fs/squashfs: sqfs_frag_lookup: simplify error handling
For consistency with other functions.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
555459e793 fs/squashfs: sqfs_read: fix another memory leak
data_buffer was allocated in a loop and freed only once.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
7ce9745cbe fs/squashfs: sqfs_read: fix memory leak
sqfs_closedir() should be called to free memory allocated by
sqfs_opendir()

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
b34949fe9b fs/squashfs: sqfs_read: remove useless sqfs_closedir()
as sqfs_opendir failed, there's no need to call sqfs_closedir

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
d1d8d75f69 fs/squashfs: sqfs_read: fix dangling pointer dirs->entry
dirs->entry shouldn't be left dangling as it could be freed twice.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
35475f83a1 fs/squashfs: sqfs_size: remove useless sqfs_closedir()
as sqfs_opendir failed, there's no need to call sqfs_closedir

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
508a9dc7f6 fs/squashfs: sqfs_size: fix dangling pointer dirs->entry
dirs->entry shouldn't be left dangling as it could be freed twice.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
dc3312c43c fs/squashfs: sqfs_concat_tokens: check if malloc succeeds
memory allocation should always be checked

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
4c83d27557 fs/squashfs: sqfs_read_inode_table: fix dangling pointer
inode_table should not be left dangling as it may be freed in sqfs_opendir

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
cd54591afd fs/squashfs: sqfs_search_dir: fix memory leaks
path, target, res, rem and sym_tokens were not free on error nor success.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
01e71ec61a fs/squashfs: sqfs_search_dir: fix dangling pointer
dirs->entry shouldn't be left dangling as it could be freed twice.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
7d23b2c5fb fs/squashfs: sqfs_read_directory_table: fix memory leak
pos_list wasn't freed on every error

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
5487477802 fs/squashfs: sqfs_split_path: fix memory leak and dangling pointers
*file and *dir were not freed on error

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
87d11e08e4 fs/squashfs: sqfs_closedir: fix memory leak
sqfs_dirs wasn't freed anywhere.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
ea1b1651c6 fs/squashfs: sqfs_opendir: simplify error handling
Using only one label permits to prevents bugs when moving code around.

Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
f268768d43 fs/squashfs: sqfs_opendir: fix some memory leaks and dangling pointers
When trying to load an non-existing file, the cpu hangs!

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
2020-11-19 09:45:49 -05:00
Richard Genoud
1b1e0c0195 fs/squashfs: fix board hang-up when calling .exists()
add missing squashfs function to prevent dangling or null pointers.
For exemple, when calling test [ -e somefile ], squashfs.exists may be
called.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
Reviewed-by: Joao Marcos Costa <jmcosta944@gmail.com>
2020-11-19 09:45:49 -05:00
Qu Wenruo
4891c4e595 fs: btrfs: initialize @ret to 0 to prevent uninitialized return value
In show_dir() if we hit a ROOT_ITEM, we can exit with uninitialized
@ret.

Fix it by initializing it to 0.

Reported-by: Coverity CID 312955
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-11-19 09:45:49 -05:00
Qu Wenruo
9b5546c37a fs: btrfs: inode: handle uninitialized type before returning it
In btrfs_lookup_path() the local variable @type should always be updated
after we hit any file/dir.

But if @filename is NULL from the very beginning, then we don't
initialize it and return it directly.

To prevent such problem from happening, we initialize @type to
BTRFS_FT_UNKNOWN.
For normal execution route, it will get updated for each filename we
resolved.
Buf if we didn't find any path, we check if the type is still FT_UNKNOWN
and ret == 0. If true we know there is something wrong, just return
-EUCLEAN to inform the caller.

Reported-by: Coverity CID 312958
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-11-19 09:45:49 -05:00
Gerard Koskamp
c49b0eb034 fs/squashfs: Fix index off by 1 for inode SQFS_LDIR_TYPE
I've created a squashfs file system with Yocto (it use squashfs-tools)
and u-boot command sqfsls give the error:'Error while searching inode:
unknown type.'
After some digging in the code I found that the index is off by 1.
This patch fix this issue and I can successful use the sqfsls command.
After search for the squashfs format I found a link talk about a
similar issue but this time in the documentation. The link is:
https://github.com/AgentD/squashfs-tools-ng/commit/e6588526838caece9529

Signed-off-by: Gerard Koskamp <gerard.koskamp@nedap.com>
Tested-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
2020-11-19 09:45:49 -05:00
Naoki Hayama
09f2107a5f fs: btrfs: Fix typo in error message
%s/occured/occurred/

Signed-off-by: Naoki Hayama <naoki.hayama@lineo.co.jp>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Qu Wenruo <wqu@suse.com>
2020-10-22 11:26:14 -04:00
Tom Rini
b7e7831e5d Merge branch 'next'
Bring in the assorted changes that have been staged in the 'next' branch
prior to release.

Signed-off-by: Tom Rini <trini@konsulko.com>
2020-10-05 14:10:59 -04:00
Heinrich Schuchardt
0ed375ebb1 fs/squashfs: parameter check sqfs_read_metablock()
We should check if the incoming parameter file_mapping is not NULL instead
of checking after adding an offset.

Reported-by: Coverity CID 307210
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2020-09-29 13:19:08 -04:00
Tom Rini
751b18b8a1 Merge branch 'master' into next
Merge in v2020.10-rc5
2020-09-21 14:25:37 -04:00
Joao Marcos Costa
a7dc37d38c fs/squashfs: Fix Coverity Scan defects
Fix control flow issues and null pointer dereferences.

Signed-off-by: Joao Marcos Costa <jmcosta944@gmail.com>
2020-09-18 16:19:58 -04:00
Qu Wenruo
5573c20fad fs: btrfs: Cleanup the old implementation
This cleans up the now unneeded code from the old btrfs implementation.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
e8e95c7ee1 fs: btrfs: Imeplement btrfs_list_subvols() using new infrastructure
Reimplement btrfs_list_subvols() to use new code.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
f48615276b fs: btrfs: Introduce function to resolve the path of one subvolume
This patch introduces a new function, list_one_subvol(), which will
resolve the path to FS_TREE of one subvolume.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
8098da7094 fs: btrfs: Introduce function to resolve path in one subvolume
This patch introduces a new function, get_path_in_subvolume(), which
resolves inode number into path inside a subvolume.

This function will be later used for btrfs subvolume list functionality.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
e3427184f3 fs: btrfs: Implement btrfs_file_read()
This version of btrfs_file_read() has the following new features:
- Tries all mirrors
- More handling on unaligned size
- Better compressed extent handling
  The old implementation doesn't handle compressed extent with offset
  properly: we need to read out the whole compressed extent, then
  decompress the whole extent, and only then copy the requested part.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 21:00:36 -04:00
Qu Wenruo
01347f64d5 fs: btrfs: Introduce lookup_data_extent() for later use
This implements lookup_data_extent() function for the incoming
new implementation of btrfs_file_read().

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
a26a6bedaf fs: btrfs: Introduce btrfs_read_extent_inline() and btrfs_read_extent_reg()
These two functions are used to do sector aligned read, which will be
later used to implement btrfs_file_read().

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
0cc8fc65c1 fs: btrfs: Rename btrfs_file_read() and its callees to avoid name conflicts
Rename btrfs_file_read() and its callees to avoid name conflicts with
the incoming new code.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
5bbb68d5f0 fs: btrfs: Use btrfs_lookup_path() to implement btrfs_exists() and btrfs_size()
After this the only remaining function that still utilizes
__btrfs_lookup_path() is btrfs_read().

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
325dd1f642 fs: btrfs: Use btrfs_iter_dir() to replace btrfs_readdir()
Use extent buffer based infrastructure to re-implement btrfs_readdir().

Along this rework, some small corner cases fixed:
- Subvolume tree mtime
  Mtime of a subvolume tree is recorded in its root item, since there is
  no INODE_ITEM for it.
  This needs extra search from tree root.

- Output the unknown type
  If the DIR_ITEM is corrupted, at least don't try to access the memory
  out of boundary.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
c921aa20c3 fs: btrfs: Implement btrfs_lookup_path()
This is the extent buffer based path lookup routine.

To implement this, btrfs_lookup_dir_item() is crossported from
btrfs-progs, and implements btrfs_lookup_path() from scratch.

Unlike the existing __btrfs_lookup_path(), since btrfs_read_fs_root()
will check whether a root is a orphan at read time, there is no need to
check root backref, this makes the code a little easier to read.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
5bdcb37495 fs: btrfs: inode: Allow next_length() to return value > BTRFS_NAME_LEN
All existing next_length() caller handles return value > BTRFS_NAME_LEN,
so there is no need to do BTRFS_NAME_LEN check in next_length().

But still, we want to exit early if we're beyond BTRFS_NAME_LEN, so this
patch makes next_length() exit as soon as we're beyond BTRFS_NAME_LEN.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
92bc179c5f fs: btrfs: Use btrfs_readlink() to implement __btrfs_readlink()
The existing __btrfs_readlink() can be easily re-implemented using the
extent buffer based btrfs_readlink().

This is the first step to re-implement U-Boot's btrfs code.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
cafffc50ad fs: btrfs: Rename path resolve related functions to avoid name conflicts
Since the old code is using __btrfs_path/__btrfs_root which is different
from the regular extent buffer based one, we add "__" prefix for the old
implementation to avoid name conflicts for the incoming crossport.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
f06bfcf54d fs: btrfs: Crossport open_ctree_fs_info() from btrfs-progs
open_ctree_fs_info() is the main entry point to open btrfs.

This version is a simplfied version of __open_ctree_fd() of btrfs-progs,
the main differences are:
- Parameters on how to specify a block device
  Instead of @fd and @path, U-Boot uses blk_desc and disk_partition_t.

- Remove open_ctree flags
  There won't be multiple open ctree modes in U-Boot.

Otherwise functions structures are all kept the same.

With open_ctree_fs_info() implemented, also introduce the global
current_fs_info pointer to show the current opened btrfs.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
57f24f1073 fs: btrfs: Crossport btrfs_read_sys_array() and btrfs_read_chunk_tree()
These two functions play a big role in btrfs bootstrap.

The following function is removed:
- Seed device support

Although in theory we can still support multiple devices, we don't have
a facility in U-Boot to do device scan without opening them.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
29c26ae8bc fs: btrfs: Crossport btrfs_search_slot() from btrfs-progs
This patch copies the core function, btrfs_search_slot(), from
btrfs-progs.

This version has the following functionality removed:
- The ability to COW tree block
  Related code is commented out, and can be enabled in the future.

- The readahead functionality
  This is abused in kernel. Remove it completely.

With the core function in place, btrfs developers should feel at home now.

This also crossports supporting code like btrfs_previous_item() to
ctree.[ch].

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
bccee8bcb2 fs: btrfs: Crossport struct btrfs_root to ctree.h
Crossport struct btrfs_root to ctree.h from btrfs-progs, with write
related members deleted.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
207011b81e fs: btrfs: Rename btrfs_root to __btrfs_root
This is to avoid naming conflicts between extent buffer based
btrfs_root.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
33966de31f fs: btrfs: Rename struct btrfs_path to struct __btrfs_path
To avoid name conflicting between the extent buffer based btrfs_path
from btrfs-progs, rename struct btrfs_path to struct __btrfs_path.

Also rename btrfs_free_path() to __btrfs_free_path() to avoid conflicts.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
75b0817bab fs: btrfs: Crossport read_tree_block() from btrfs-progs
This is the one of the basic stone function for btrfs, which:
- Resolves the chunk mappings
- Reads data from disk
- Does various sanity check

With read_tree_block(), we can finally crossport needed btrfs btree
operations to U-Boot.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
b1f0067aba fs: btrfs: Crossport volumes.[ch] from btrfs-progs
This patch crossports volumes.[ch] from btrfs-progs, including:
- btrfs_map_block()
  The core mechanism to map btrfs logical address to physical address.
  This version includes multi-device support, along with RAID56 support.

- btrfs_scan_one_device()
  This is the function to register one btrfs device to the list.
  This is the main part of the multi-device btrfs assembling process.
  Although we're not going to support multiple devices until U-Boot
  allows us to scan one device without actually opening it.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
[trini: Use %zu in a debug print to avoid warning]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-09-07 20:57:27 -04:00
Qu Wenruo
be35942546 fs: btrfs: Crossport structure accessor into ctree.h
This brings all structure accessors from btrfs-progs/ctree.h, as in
kernel's ctree.h.

All these accessors handle the endian convert at runtime, and since all
of them are defined as static inline functions, those which aren't used
won't take space in resulting binary.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
9a9be5ec17 fs: btrfs: Crossport extent-io.[ch] from btrfs-progs
This brings the extent_io_tree infrastructure, with which we can finally
bring in proper btrfs_fs_info structure to ctree.h.

With read/write_extent_buffer() implemented we also backport
read/write_eb_member() to ctree.h.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
ab5c3046f2 fs: btrfs: Crossport extent-cache.[ch] from btrfs-progs
This patch implements an infrastructure to insert/search/merge an extent
range (with variable length).

This provides the basis for later extent buffer cache used in btrfs.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
bc621e545b fs: btrfs: Crossport rbtree-utils from btrfs-progs
This is needed for incoming extent-cache infrastructure.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
4aebb99486 fs: btrfs: Crossport btrfs_read_dev_super() from btrfs-progs
This patch uses generic code from btrfs-progs to read one super block
from block device.

To support the btrfs-progs coding style, the following is also
crossported:
- BTRFS_SETGET_FUNC for btrfs_super_block
- btrfs_check_super() function
- Move btrfs_read_superblock() to disk-io.[ch]
  Since super.c only contains pretty small amount of code, and
  the extra check will be covered in later root read patches.

Differences between this implementation and btrfs-progs:
- No sbflags/sb_bytenr support
  Since we only need to read the primary super block (like kernel),
  sbflags/sb_bytenr used by super block recovery is not needed.

This also changes the following behavior of U-Boot btrfs:
- Only reads the primary super block
  The old implementation reads all 3 super blocks, and also one
  non-existing backup.
  This is not correct, especially if there is another filesystem created
  on the device but old superblocks are not rewritten.

  Just like kernel, we only check the primary super block.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
[trini: Change error to be a define in compat.h]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-09-07 20:57:27 -04:00
Qu Wenruo
565a4147d1 fs: btrfs: Add more checksum algorithms
This mostly crossports crypto/hash.[ch] from btrfs-progs.

The differences are:
- No blake2 support
  No blake2 related library in U-Boot yet.

- Use uboot xxhash/sha256 directly
  No need to implement the code as U-Boot has already provided the
  interface.

This adds the support for the following csums:
- SHA256
- XXHASH

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Qu Wenruo
3b4b40c0d6 fs: btrfs: Sync btrfs_btree.h from kernel
This version includes all needed on-disk format from kernel.

Only need to modify the include headers for U-Boot, everything else is
untouched.

Also, since U-Boot btrfs is using a different endian convert timing (at
tree block read time), it needs some forced type conversion before
proper crossport.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
2020-09-07 20:57:27 -04:00
Heinrich Schuchardt
0d32d8cf9d fs: convert error and debug messages to log
Use log functions for error and debug messages of the file-system.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-09-06 21:21:41 +02:00
Joao Marcos Costa
c9875a5fe8 fs/squashfs: Fix Coverity Scan defects
Fix defects such as uninitialized variables and untrusted pointer
operations. Most part of the tainted variables and the related defects
actually comes from Linux's macro get_unaligned_le**, extensively used
in SquashFS code. Add sanity checks for those variables.

Signed-off-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
2020-08-24 14:11:31 -04:00
Joao Marcos Costa
6dfed163bd fs/squashfs: add support for LZO decompression
Add call to lzo's lzo1x_decompress_safe() into sqfs_decompress().

U-Boot's LZO sources may still have some unsolved issues that could make the
decompression crash when dealing with fragmented files, so those should be
avoided. The "-no-fragments" option can be passed to mksquashfs.

Signed-off-by: Joao Marcos Costa <joaomarcos.costa@bootlin.com>
2020-08-24 14:11:31 -04:00