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When a file contains extents, U-Boot currently reads extent-related data
for each block in the file, even if that data is located in the same
block each time. This significantly slows down loading of files that use
extents. Implement a very dumb cache to prevent repeatedly reading the
same block. Files with extents now load as fast as files without.
Note: There are many cases where read_allocated_block() is called. This
patch only addresses one of those places; all others still read redundant
data in any case they did before. This is a minimal patch to fix the
load command; other cases aren't fixed.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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Before printk.h was introduced and MTDDEBUG was removed,
pr_crit() was calling MTDDEBUG(), which was since then
replaced by the current pr_debug().
pr_debug is more appropriate here.
Signed-off-by: Eran Matityahu <eran.m@variscite.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
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U-Boot doesn't support metadata_csum feature. Writing to filesystem with
metadata_csum feature makes the filesystem corrupted and unbootable by
Linux:
[ 2.527495] EXT4-fs (mmcblk0p2): ext4_check_descriptors: Checksum for group 0 failed (52188!=0)
[ 2.537421] EXT4-fs (mmcblk0p2): ext4_check_descriptors: Checksum for group 1 failed (5262!=0)
...
[ 2.653308] EXT4-fs (mmcblk0p2): ext4_check_descriptors: Checksum for group 14 failed (42611!=0)
[ 2.662179] EXT4-fs (mmcblk0p2): ext4_check_descriptors: Checksum for group 15 failed (21527!=0)
[ 2.687920] JBD2: journal checksum error
[ 2.691982] EXT4-fs (mmcblk0p2): error loading journal
[ 2.698292] VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2): error -74
Don't write to filesystem with meatadata_csum feature to not corrupt the
filesystem.
Signed-off-by: Sébastien Szymanski <sebastien.szymanski@armadeus.com>
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When compiling with DEBUG=1 an error
fs/fat/fat_write.c:831: undefined reference to `__aeabi_ldivmod'
occurred.
We should use do_div() instead of the modulus operator.
filesize and cur_pos cannot be negative. So let's use u64 to avoid
warnings.
Fixes: cb8af8af5ba0 ("fs: fat: support write with non-zero offset")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Release cluster block immediately when no longer use would help to reduce
64KiB memory allocated to the memory pool.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
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Drop the statically allocated get_contents_vfatname_block and
dynamically allocate a buffer only if required. This saves
64KiB of memory.
Signed-off-by: Stefan Agner <stefan.ag...@toradex.com>
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
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Unlike other generic FS accessors, fs_get_info() does not call fs_close()
at the end of it's operation. Thus, using fs_get_info() in do_fs_type()
without calling fs_close() causes potential memory leak by creating new
filesystem structures on each call of do_fs_type().
The test case to trigger this problem is as follows. It is required to
have ext4 filesystem on the first partition of the SDMMC device, since
ext4 requires stateful mount and causes memory allocation.
=> while true ; do mmc rescan ; fstype mmc 1 ; done
Eventually, the mounting of ext4 will fail due to malloc failures
and the filesystem will not be correctly detected.
This patch fixes the problem by adding the missing fs_close().
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
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This fixes the automatic lmb initialization and reservation for boards
with more than one DRAM bank.
This fixes the CVE-2018-18439 and -18440 fixes that only allowed to load
files into the firs DRAM bank from fs and via tftp.
Found-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Tested-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
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CONFIG_SPL_FS_EXT4 can be used to include/exclude the FS EXT4 from
SPL build. Excluding the FS EXT4 from SPL build can help to save 20KiB
memory.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Replace CONFIG_SPL_EXT_SUPPORT to CONFIG_SPLY_FS_EXT4 so both
obj-$(CONFIG_$(SPL_)FS_EXT4) and CONFIG_IS_ENABLED(FS_EXT4) can be
used to control the build in both SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Most of the time SPL only needs very simple FAT reading, so having
CONFIG_IS_ENABLED(FAT_WRITE) to exclude it from SPL build would help
to save 64KiB default max clustersize from memory.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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Replace CONFIG_SPL_FAT_SUPPORT with CONFIG_SPL_FS_FAT so
obj-$(CONFIG_$(SPL_)FS_FAT) can be used to control the build in both
SPL and U-Boot.
Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
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This fixes CVE-2018-18440 ("insufficient boundary checks in filesystem
image load") by using lmb to check the load size of a file against
reserved memory addresses.
Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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This particular commit is causing a regression on stih410-b2260 and
other platforms when reading from FAT16. Noting that I had rebased the
original fix from Thomas onto then-current master, there is also
question from Akashi-san if the change is still needed after other FAT
fixes that have gone in.
This reverts commit a68b0e11ea774492713a65d9fd5bb525fcaefff3.
Reported-by: Patrice Chotard <patrice.chotard@st.com>
Cc: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Thomas RIENOESSL <thomas.rienoessl@bachmann.info>
Signed-off-by: Tom Rini <trini@konsulko.com>
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The call to file_cbfs_fill_cache() is given with the parameter
'start' pointing to the offset by the CBFS base address, but
with the parameter 'size' that equals to the whole CBFS size.
During CBFS walking through, it checks files one by one and
after it pass over the end of the CBFS which is 4GiB boundary
it tries to check files from address 0 and so on, until the
overall size the codes checked hits to the given 'size'.
Fix this by passing 'start' pointing to the CBFS base address.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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cbfs_fileheader.len indicates the content size of the file in the
cbfs, and it has nothing to do with cbfs_fileheader.offset which
is the starting address of the file in the cbfs.
Remove such check in file_cbfs_next_file(). Before this change
'cbfsinit' failed with 'Bad CBFS file'. After this change all cbfs
commands are working as expected.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
[bmeng: keep the necessary header sanity check]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The long name apparently can be accumulated using multiple
13-byte slots. Unfortunately we never checked how many we
can actually fit in the buffer we are reading to.
Signed-off-by: Patrick Wildt <patrick@blueri.se>
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The cluster size specifies how many sectors make up a cluster. A
cluster size of zero makes no sense, as it would mean that the
cluster is made up of no sectors. This will later lead into a
division by zero in sect_to_clust(), so better take care of that
early.
The MAX_CLUSTSIZE define can reduced using a define to make some
room in low-memory system. Unfortunately if the code reads a
filesystem with a bigger cluster size it will overflow the buffer.
Signed-off-by: Patrick Wildt <patrick@blueri.se>
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As in the case of fs_set_blk_dev(), fs_set_blk_dev_with_part() should
maintain and update fs_dev_part whenever called.
Without this patch, a problem will come up when an efi binary associated
with efi's BOOTxxxx variable is invoked via "bootefi bootmgr".
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This fixes problems accessing drives formated under
Windows as FAT16.
Signed-off-by: Thomas RIENOESSL <thomas.rienoessl@bachmann.info>
[trini: Rebase on top of f528c140c801]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Add fs.c under SPL as well as it is needed for fs_loader
Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Add as obj-$(CONFIG_FS_LOADER) for non-SPL_FRAMEWORK builds]
Signed-off-by: Tom Rini <trini@konsulko.com>
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Add local size_t variable to crypto_comp_decompress as intermediate
storage for destination length to avoid memory corruption and incorrect
results on 64 bit targets.
This is what linux does for the various lz compression implementations.
Signed-off-by: Paul Davey <paul.davey@alliedtelesis.co.nz>
Cc: Heiko Schocher <hs@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
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As observed with clang:
fs/fat/fat_write.c:1024:13: warning: comparison of constant 128
with expression of type 'char' is always false
[-Wtautological-constant-out-of-range-compare]
if ((0x80 <= c) && (c <= 0xff))
~~~~ ^ ~
fs/fat/fat_write.c:1024:25: warning: comparison of constant 255
with expression of type 'char' is always true
[-Wtautological-constant-out-of-range-compare]
if ((0x80 <= c) && (c <= 0xff))
~ ^ ~~~~
Fixes: 25bb9dab14f4 ("fs: fat: check and normalize file name")
Signed-off-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
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When traversing slots in a btree (via btrfs_path) with btrfs_next_slot(),
we didn't correctly identify that the last slot in the leaf was reached
and we should jump to the next leaf.
This could lead to any kind of runtime errors or corruptions, like:
* file data not being read at all, or is read partially
* file is read but is corrupted
* (any) metadata being corrupted or not read at all, etc
The easiest way to reproduce this is to read a large enough file that
its EXTENT_DATA items don't fit into a single leaf.
Signed-off-by: Yevgeny Popovych <yevgenyp@pointgrab.com>
Cc: Marek Behun <marek.behun@nic.cz>
Tested-by: Marek Behún <marek.behun@nic.cz>
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Avoid CoverityScan warning SIGN_EXTENSION by changing the type of
parameter size of set_cluster().
Avoid leaking stack content when writing an incomplete last sector.
Reported-by: Coverity (CID: 184096)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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Do not leak filename_copy in case of error.
Catch out of memory when calling strdup.
Reported-by: Coverity (CID: 184086)
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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The btrfs implementation passes cache-unaligned buffers into the
block layer, which triggers cache alignment problems down in the
block device drivers. Align the buffers to prevent this.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Marek Behun <marek.behun@nic.cz>
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The FAT driver supports unaligned reads and writes and EFI applications
will make use of these. So a misaligned buffer is only worth a debug
message.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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In this patch, unlink support is added to FAT file system.
A directory can be deleted only if it is empty.
In this implementation, only a directory entry for a short file name
will be removed. So entries for a long file name can and should be
reclaimed with fsck.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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"unlink" interface is added to file operations.
This is a preparatory change as unlink support for FAT file system
will be added in next patch.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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In this patch, mkdir support is added to FAT file system.
A newly created directory contains only "." and ".." entries.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The starting cluster number of directory is needed to initialize ".."
(parent directory) entry when creating a new directory.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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"mkdir" interface is added to file operations.
This is a preparatory change as mkdir support for FAT file system
will be added in next patch.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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In this patch, all the necessary code for allowing for a file offset
at write is implemented. What plays a major roll here is get_set_cluster(),
which, in contrast to its counterpart, set_cluster(), only operates on
already-allocated clusters, overwriting with data.
So, with a file offset specified, set_contents() seeks and writes data
with set_get_cluster() until the end of a file, and, once it reaches
there, continues writing with set_cluster() for the rest.
Please note that a file will be trimmed as a result of write operation if
write ends before reaching file's end. This is an intended behavior
in order to maintain compatibility with the current interface.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The current write implementation is quite simple: remove existing clusters
and then allocating new ones and filling them with data. This, inevitably,
enforces always writing from the beginning of a file.
As the first step to lift this restriction, fat_file_write() and
set_contents() are modified to accept an additional parameter, file offset
and further re-factored so that, in the next patch, all the necessary code
will be put into set_contents().
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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In this patch, write implementation is overhauled and rewritten by
making full use of directory iterator. The obvious bonus is that we are
now able to write to a file with a directory path, like /A/B/C/FILE.
Please note that, as there is no notion of "current directory" on u-boot,
a file name specified must contain an absolute directory path. Otherwise,
"/" (root directory) is assumed.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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It would be good that FAT write function return error code instead of
just returning -1 as fat_read_file() does.
This patch attempts to address this issue although it is 'best effort
(or estimate)' for now.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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FAT file system's long file name support is a bit complicated and has some
restrictions on its naming. We should be careful about it especially for
write as it may easily end up with wrong file system.
normalize_longname() check for the rules and normalize a file name
if necessary. Please note, however, that this function is yet to be
extended to fully comply with the standard.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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This reverts commit 0dc1bfb7302d220a48364263d5632d6d572b069b.
The succeeding patch series will supersede it.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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In my attempt to re-work write operation, it was revealed that iterator's
"clust" does not always point to a cluster to which a current directory
entry ("dent") belongs.
This patch assures that it is always true by adding "next_clust" which is
used solely for dereferencing a cluster chain.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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FAT's root directory does not have "." nor ".."
So care must be taken when scanning root directory with fat_itr_resolve().
Without this patch, any file path starting with "." or ".." will not be
resolved at all.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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get_fs_info() was introduced in major re-work of read operation by Rob.
We want to reuse this function in write operation by extending it with
additional members in fsdata structure.
Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
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I just stumbled over some cluttered UBIFS messages. It seems some
newline chars are missing in the current U-Boot UBI source.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
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In int-ll64.h, we always use the following typedefs:
typedef unsigned int u32;
typedef unsigned long uintptr_t;
typedef unsigned long long u64;
This does not need to match to the compiler's <inttypes.h>.
Do not include it.
The use of PRI* makes the code super-ugly. You can simply use
"l" for printing uintptr_t, "ll" for u64, and no modifier for u32.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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In order to make the debug print in file_fat_read_at() a tad more useful,
show the offset the file is being read at alongside the filename.
Suggested-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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%s/dumm /dummy /
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
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fs_fat_write() is not able to write to subdirectories.
Currently if a filepath with a leading slash is passed, the slash is
treated as part of the filename to be created in the root directory.
Strip leading (back-)slashes.
Check that the remaining filename does not contain any illegal characters
(<>:"/\|?*). This way we will throw an error when trying to write to a
subdirectory.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
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The comparison
logical > item->logical + item->length
in btrfs_map_logical_to_physical is wrong and should be instead
logical >= item->logical + item->length
For example, if
item->logical = 4096
item->length = 4096
and we are looking for logical = 8192, it is not part of item (item is
[4096, 8191]). But the comparison is false and we think we have found
the correct item, although we should be searing in the right subtree.
This fixes some bugs I encountered.
Signed-off-by: Marek Behun <marek.behun@nic.cz>
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By checking ubifs source code, s_instances parameter is not
used anymore. So, set this parameter and the associated source
code under __UBOOT__ compilation.
Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
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This is the case when reading freshly created filesystem.
The error message is like the following:
btrfs_read_superblock: No valid root_backup found!
Since the data from super_roots/root_backups is not actually used -
decided to rework btrfs_newest_root_backup() into
btrfs_check_super_roots() that will only check if super_roots
array is valid and correctly handle empty scenario.
As a result:
* btrfs_read_superblock() now only checks if super_roots array is valid;
the case when it is empty is considered OK.
* removed root_backup pointer from btrfs_info,
which would be NULL in case of empty super_roots.
* btrfs_read_superblock() verifies number of devices from the superblock
itself, not newest root_backup.
Signed-off-by: Yevgeny Popovych <yevgenyp@pointgrab.com>
Cc: Marek Behun <marek.behun@nic.cz>
Cc: Sergey Struzh <sergeys@pointgrab.com>
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