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* sandbox/fs: Free memory allocated by os_dirent_lsStefan Brüns2016-10-11-0/+1
| | | | | Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Acked-by: Simon Glass <sjg@chromium.org>
* treewide: replace #include <asm/errno.h> with <linux/errno.h>Masahiro Yamada2016-09-23-3/+3
| | | | | | | | | | | Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have the same content. (both just wrap <asm-generic/errno.h>) Replace all include directives for <asm/errno.h> with <linux/errno.h>. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> [trini: Fixup include/clk.] Signed-off-by: Tom Rini <trini@konsulko.com>
* treewide: use #include <...> to include public headersMasahiro Yamada2016-09-23-9/+9
| | | | | | | | | We are supposed to use #include <...> to include headers in the public include paths. We should use #include "..." only for headers in local directories. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* ext4: Revert rejection of 64bit enabled ext4 fsStefan Brüns2016-09-23-9/+0
| | | | | | | Enable mounting of ext4 fs with 64bit feature, as it is supported now. These had been disabled in 6f94ab6656ceffb3f2a972c8de4c554502b6f2b7. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Respect group descriptor size when adjusting free countsStefan Brüns2016-09-23-24/+69
| | | | | | Also adjust high 16/32 bits when free inode/block counts are modified. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Use helper function to access group descriptor and its fieldsStefan Brüns2016-09-23-136/+154
| | | | | | | | The descriptor size is variable, thus array indices are not generically applicable. The larger group descriptors also contain e.g. high parts of block numbers, which have to be read and written. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Use correct descriptor size when reading the block group descriptorStefan Brüns2016-09-23-4/+4
| | | | | | | The correct descriptor size must be used when calculating offsets, and also to read the correct amount of data. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Add helper functions for block group descriptor field accessStefan Brüns2016-09-23-0/+94
| | | | | | | | | The helper functions encapsulate access of the block group descriptors, independent of group descriptor size. The helpers also deal with the endianess of the fields, and with split fields like free_blocks/ free_blocks_high. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: determine group descriptor size for 64bit featureStefan Brüns2016-09-23-4/+14
| | | | | | | If EXT4_FEATURE_INCOMPAT_64BIT is set, the descriptor can be read from the superblocks, otherwise it defaults to 32. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Fix memory leak of journal buffer if block is updated multiple timesStefan Brüns2016-09-23-1/+5
| | | | | | | | If the same block is updated multiple times in a row during a single file system operation, gd_index is decremented to use the same journal entry again. Avoid loosing the already allocated buffer. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: Correct block number handling, empty block vs. error codeStefan Brüns2016-09-23-4/+13
| | | | | | | | | | | | | | | | | | | read_allocated block may return block number 0, which is just an indicator a chunk of the file is not backed by a block, i.e. it is sparse. During file deletions, just continue with the next logical block, for other operations treat blocknumber <= 0 as an error. For writes, blocknumber 0 should never happen, as U-Boot always allocates blocks for the whole file. Reading already handles this correctly, i.e. the read buffer is 0-fillled. Not treating block 0 as sparse block leads to FS corruption, e.g. ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /2.5GB.file 1 ' The 2.5GB.file from the fs test is actually a sparse file. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: remove duplicated block release code for extentsStefan Brüns2016-09-23-77/+33
| | | | | | | | | | | | | The data blocks are identical for files using traditional direct/indirect block allocation scheme and extent trees, thus this code part can be common. Only the code to deallocate the indirect blocks to record the used blocks has to be seperate, respectively the code to release extent tree index blocks. Actually the code to release the extent tree index blocks is still missing, but at least add a FIXME at the appropriate place. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
* ext4: initialize full inode for inodes bigger than 128 bytesStefan Brüns2016-09-23-6/+4
| | | | | | | | Make sure the the extra_isize field (offset 128) is initialized to 0, to mark any extra data as invalid. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Use correct value for inode size even on revision 0 filesystemsStefan Brüns2016-09-23-1/+0
| | | | | | | | fs->inodesz is already correctly (i.e. dependent on fs revision) initialized in ext4fs_mount. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Fix memory leak in case of failureStefan Brüns2016-09-23-2/+2
| | | | | | | | temp_ptr should always be freed, even if the function is left via goto fail. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Avoid out-of-bounds access of block bitmapStefan Brüns2016-09-23-22/+12
| | | | | | | | | | | | If the blocksize is 1024, count is initialized with 1. Incrementing count by 8 will never match (count == fs->blksz * 8), and ptr may be incremented beyond the buffer end if the bitmap is filled. Add the startblock offset after the loop. Remove the second loop, as only the first iteration will be done. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: After completely filled group, scan next group from the beginningStefan Brüns2016-09-23-3/+5
| | | | | | | | | | | | | | | | | | | | The last free block of a block group may be in its middle. After it has been allocated, the next block group should be scanned from its beginning. The following command triggers the bad behaviour (on a blocksize 1024 fs): ./sandbox/u-boot -c 'i=0; host bind 0 ./disk.raw ; while test $i -lt 260 ; do echo $i; setexpr i $i + 1; ext4write host 0:2 0 /X${i} 0x1450; done ; ext4write host 0:2 0 /X240 0x2000 ; ' When 'X240' is extended from 5200 byte to 8192 byte, the new blocks should start from the first free block (8811), but it uses the blocks 8098-8103 and 16296-16297 -- 8103 + 1 + 8192 = 16296. This can be shown with debugfs, commands 'ffb' and 'stat X240'. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Do not clear zalloc'ed buffers a second timeStefan Brüns2016-09-23-3/+0
| | | | | | | | | zero_buffer is never written, thus clearing it is pointless. journal_buffer is completely initialized by ext4fs_devread (or in case of failure, not used). Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Only update number of of unused inodes if GDT_CSUM feature is setStefan Brüns2016-09-23-7/+7
| | | | | | | | | | e2fsck warns about "Group descriptor 0 marked uninitialized without feature set." The bg_itable_unused field is only defined if FEATURE_RO_COMPAT_GDT_CSUM is set, and should be set (kept) zero otherwise. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Scan all directory blocks when looking up an entryStefan Brüns2016-09-23-44/+40
| | | | | | | | | Scanning only the direct blocks of the directory file may falsely report an existing file as nonexisting, and worse can also lead to creation of a duplicate entry on file creation. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Avoid corruption of directories with hash tree indexesStefan Brüns2016-09-23-0/+5
| | | | | | | | | While directories can be read using the old linear scan method, adding a new file would require updating the index tree (alternatively, the whole tree could be removed). Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Scan all directory blocks for space when inserting a new entryStefan Brüns2016-09-23-44/+30
| | | | | | | | | | | Previously, only the last directory block was scanned for available space. Instead, scan all blocks back to front, and if no sufficient space is found, eventually append a new block. Blocks are only appended if the directory does not use extents or the new block would require insertion of indirect blocks, as the old code does. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: Do not crash when trying to grow a directory using extentsStefan Brüns2016-09-23-1/+6
| | | | | | | | | | | | | The following command crashes u-boot: ./sandbox/u-boot -c 'i=0; host bind 0 ./sandbox/test/fs/3GB.ext4.img ; while test $i -lt 200 ; do echo $i; setexpr i $i + 1; ext4write host 0 0 /foobar${i} 0; done' Previously, the code updated the direct_block even for extents, and fortunately crashed before pushing garbage to the disk. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: propagate error if creation of directory entry failsStefan Brüns2016-09-23-8/+10
| | | | | | | | In case the dir entry creation failed, ext4fs_write would later overwrite a random inode, as inodeno was never initialized. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: fix possible crash on directory traversal, ignore deleted entriesStefan Brüns2016-09-23-38/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | The following command triggers a segfault in search_dir: ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /./foo 0x10' The following command triggers a segfault in check_filename: ./sandbox/u-boot -c 'host bind 0 ./sandbox/test/fs/3GB.ext4.img ; ext4write host 0 0 /. 0x10' "." is the first entry in the directory, thus previous_dir is NULL. The whole previous_dir block in search_dir seems to be a bad copy from check_filename(...). As the changed data is not written to disk, the statement is mostly harmless, save the possible NULL-ptr reference. Typically a file is unlinked by extending the direntlen of the previous entry. If the entry is the first entry in the directory block, it is invalidated by setting inode=0. The inode==0 case is hard to trigger without crafted filesystems. It only hits if the first entry in a directory block is deleted and later a lookup for the entry (by name) is done. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* ext4: fix wrong usage of le32_to_cpu()Michael Walle2016-09-23-1/+1
| | | | | | | le32_to_cpu() must only convert the revision_level and not the boolean result. Signed-off-by: Michael Walle <michael@walle.cc>
* ext4: fix endianess problems in ext4 write supportMichael Walle2016-09-23-249/+310
| | | | | | | | All fields were accessed directly instead of using the proper byte swap functions. Thus, ext4 write support was only usable on little-endian architectures. Fix this. Signed-off-by: Michael Walle <michael@walle.cc>
* ext4: use kernel names for byte swapsMichael Walle2016-09-23-53/+53
| | | | | | Instead of __{be,le}{16,32}_to_cpu use {be,le}{16,32}_to_cpu. Signed-off-by: Michael Walle <michael@walle.cc>
* ext4: change structure fields to __le/__be typesMichael Walle2016-09-23-20/+20
| | | | | | | | Change all the types of ext2/4 fields to little endian types and all the JBD fields to big endian types. Now we can use sparse (make C=1) to check for statements where we need byteswaps. Signed-off-by: Michael Walle <michael@walle.cc>
* fs/fat: Correct description of determine_fatent functionStefan Brüns2016-09-23-1/+3
| | | | | | | Current description does not match the function behaviour. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com>
* fs/fat: Do not write unmodified fat entries to diskStefan Brüns2016-09-23-12/+20
| | | | | | | | | | | | The code caches 6 sectors of the FAT. On FAT traversal, the old contents needs to be flushed to disk, but only if any FAT entries had been modified. Explicitly flag the buffer on modification. Currently, creating a new file traverses the whole FAT up to the first free cluster and rewrites the on-disk blocks. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
* fs/fat: Remove two statements without effectStefan Brüns2016-09-23-4/+1
| | | | | | | | | | fatlength is a local variable which is no more used after the assignment. s_name is not used in the function, save the strncpy. Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> Acked-by: Lukasz Majewski <l.majewski@samsung.com> Acked-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com>
* cbfs: Fix incorrect CBFS file header size being usedYaroslav K2016-08-16-4/+4
| | | | | | | | | This fixes incorrect filenames in cbfsls output. Signed-off-by: Yaroslav K. <yar444@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> [clean up checkpatch errors and warnings] Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* ext4: Refuse to mount filesystems with 64bit feature setTom Rini2016-08-05-0/+10
| | | | | | | | | | | | | | | | With e2fsprogs after 1.43 the 64bit and metadata_csum features are enabled by default. The metadata_csum feature changes how ext4_group_desc->bg_checksum is calculated, which would break write support. The 64bit feature however introduces changes such that it cannot be read by implementations that do not support it. Since we do not support this, we must not mount it. Cc: Stephen Warren <swarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stefan Roese <sr@denx.de> Reported-by: Andrew Bradford <andrew.bradford@kodakalaris.com> Signed-off-by: Tom Rini <trini@konsulko.com>
* fs: cbfs: Fix build of fs/cbfs/cbfs.c when building u-boot sandbox on x86 32-bitGuillaume GARDET2016-06-19-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the following build errors when building sandbox on x86 32-bit: In file included from fs/cbfs/cbfs.c:8:0: include/malloc.h:364:7: error: conflicting types for 'memset' void* memset(void*, int, size_t); ^ In file included from include/compiler.h:123:0, from include/cbfs.h:10, from fs/cbfs/cbfs.c:7: include/linux/string.h:78:15: note: previous declaration of 'memset' was here extern void * memset(void *,int,__kernel_size_t); ^ In file included from fs/cbfs/cbfs.c:8:0: include/malloc.h:365:7: error: conflicting types for 'memcpy' void* memcpy(void*, const void*, size_t); ^ In file included from include/compiler.h:123:0, from include/cbfs.h:10, from fs/cbfs/cbfs.c:7: include/linux/string.h:81:15: note: previous declaration of 'memcpy' was here extern void * memcpy(void *,const void *,__kernel_size_t); ^ scripts/Makefile.build:280: recipe for target 'fs/cbfs/cbfs.o' failed Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr> Cc: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* mtd: nand: Add+use mtd_to/from_nand and nand_get/set_controller_dataScott Wood2016-06-03-1/+1
| | | | | | | | | These functions are part of the Linux 4.6 sync. They are being added before the main sync patch in order to make it easier to address the issue across all NAND drivers (many/most of which do not closely track their Linux counterparts) separately from other merge issues. Signed-off-by: Scott Wood <oss@buserror.net>
* nand: Embed mtd_info in struct nand_chipScott Wood2016-06-03-8/+4
| | | | | | | | | | | | nand_info[] is now an array of pointers, with the actual mtd_info instance embedded in struct nand_chip. This is in preparation for syncing the NAND code with Linux 4.6, which makes the same change to struct nand_chip. It's in a separate commit due to the large amount of changes required to accommodate the change to nand_info[]. Signed-off-by: Scott Wood <oss@buserror.net>
* mtd: nand: Remove nand_info_t typedefScott Wood2016-06-03-12/+14
| | | | | | | This typedef serves no purpose other than causing confusion with struct nand_chip. Signed-off-by: Scott Wood <oss@buserror.net>
* dm: scsi: Rename CONFIG_CMD_SCSI to CONFIG_SCSISimon Glass2016-05-17-1/+1
| | | | | | | | This option currently enables both the command and the SCSI functionality. Rename the existing option to CONFIG_SCSI since most of the code relates to the feature. Signed-off-by: Simon Glass <sjg@chromium.org>
* fs: ext4: fix symlink read functionRonald Zachariah2016-05-02-1/+1
| | | | | | | | | | The function ext4fs_read_symlink was unable to handle a symlink which had target name of exactly 60 characters. Signed-off-by: Ronald Zachariah <rozachar@cisco.com> Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Stephen Warren <swarren@nvidia.com> Cc: Tom Rini <trini@konsulko.com>
* ubifs: fix memory corruption in super.cHeiko Schocher2016-04-22-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | In list "super_blocks" ubifs collects allocated super_block structs. U-Boot frees on unmount the allocated struct, so the pointer stored in this list is free after the umount. On a new ubifs mount, the new allocated super_block struct get inserted into the super_blocks list ... which contains now a freed pointer, and the list_add_tail() corrupts the freed memory ... 2 solutions are possible: - remove the super_block from the super_blocks list on umount - as U-Boot does not use the super_blocks list ... remove it complete for U-Boot. Both solutions should not introduce problems for porting to newer linux version, so this patch removes the unused super_blocks list, as it saves code size and execution time. Signed-off-by: Heiko Schocher <hs@denx.de>
* jffs2: Fix set but not used warningTom Rini2016-04-01-1/+2
| | | | | | | We only use 'ofs' in jffs2_sum_scan_sumnode when debugging as it's part of a dbg_summary call. Mark this as __maybe_unused. Signed-off-by: Tom Rini <trini@konsulko.com>
* Fix spelling of "supported/unsupported".Vagrant Cascadian2016-03-22-1/+1
| | | | | | | Signed-off-by: Vagrant Cascadian <vagrant@debian.org> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
* dm: block: Adjust device calls to go through helpers functionSimon Glass2016-03-14-37/+24
| | | | | | | | | | | | To ease conversion to driver model, add helper functions which deal with calling each block device method. With driver model we can reimplement these functions with the same arguments. Use inline functions to avoid increasing code size on some boards. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* dm: block: Rename device number member dev to devnumSimon Glass2016-03-14-2/+2
| | | | | | | | | This is a device number, and we want to use 'dev' to mean a driver model device. Rename the member. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* dm: part: Rename some partition functionsSimon Glass2016-03-14-1/+1
| | | | | | | | Rename three partition functions so that they start with part_. This makes it clear what they relate to. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Stephen Warren <swarren@nvidia.com>
* dm: blk: Rename get_device_and_partition()Simon Glass2016-03-14-2/+2
| | | | | | | | | | Rename this function to blk_get_device_part_str(). This is a better name because it makes it clear that the function returns a block device and parses a string. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* dm: Drop the block_dev_desc_t typedefSimon Glass2016-03-14-77/+66
| | | | | | | | | Use 'struct' instead of a typdef. Also since 'struct block_dev_desc' is long and causes 80-column violations, rename it to struct blk_desc. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
* bug.h: move BUILD_BUG_* defines to include/linux/bug.hMasahiro Yamada2016-01-25-0/+2
| | | | | | | | | | | | | | | | BUILD_BUG_* macros have been defined in several headers. It would be nice to collect them in include/linux/bug.h like Linux. This commit is cherry-picking useful macros from include/linux/bug.h of Linux 4.4. I did not import BUILD_BUG_ON_MSG() because it would not work if it is used with include/common.h in U-Boot. I'd like to postpone it until the root cause (the "error()" macro in include/common.h causes the name conflict with "__attribute__((error()))") is fixed. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* Add more SPDX-License-Identifier tagsTom Rini2016-01-19-24/+3
| | | | | | | | | In a number of places we had wordings of the GPL (or LGPL in a few cases) license text that were split in such a way that it wasn't caught previously. Convert all of these to the correct SPDX-License-Identifier tag. Signed-off-by: Tom Rini <trini@konsulko.com>
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