u-boot.git/fs, branch v2020.10

fs/squashfs: parameter check sqfs_read_metablock()

2020-09-29T17:19:08+00:00

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 
Acked-by: Thomas Petazzoni

fs/squashfs: Fix Coverity Scan defects

2020-09-18T20:19:58+00:00

Fix control flow issues and null pointer dereferences.

Signed-off-by: Joao Marcos Costa

fs: convert error and debug messages to log

2020-09-06T19:21:41+00:00

Use log functions for error and debug messages of the file-system.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass

fs/squashfs: Fix Coverity Scan defects

2020-08-24T18:11:31+00:00

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

fs/squashfs: add support for LZO decompression

2020-08-24T18:11:31+00:00

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

fs/squashfs: add support for ZSTD decompression

2020-08-24T18:11:31+00:00

Add call to ZSTD's ZSTD_decompressDCtx(). In this use case, the caller
can upper bound the decompressed size, which will be the SquashFS data
block (or metadata block) size, so there is no need to use streaming
API. Add ZSTD's worskpace to squashfs_ctxt structure.

Signed-off-by: Joao Marcos Costa

fs/squashfs: replace sqfs_decompress() parameter

2020-08-24T18:11:31+00:00

Replace 'u16 comp_type' by a reference to squashfs_ctxt structure.

Signed-off-by: Joao Marcos Costa

fs/squashfs: Add init and clean-up functions to decompression

2020-08-24T18:11:31+00:00

Add sqfs_decompressor_init() and sqfs_decompressor_cleanup(). These
functions are called respectively in sqfs_probe() and sqfs_close(). For
now, only ZSTD requires an initialization logic. ZSTD support will be
added in a follow-up commit.

Move squashfs_ctxt definition to sqfs_filesystem.h. This structure is
passed to sqfs_decompressor_init() and sqfs_decompressor_cleanup(), so
it can no longer be local to sqfs.c.

Signed-off-by: Joao Marcos Costa

fs/fs.c: add symbolic link case to fs_ls_generic()

2020-08-08T02:31:32+00:00

Adds an 'else if' statement inside the loop to check for symbolic links.

Signed-off-by: Joao Marcos Costa

fs/squashfs: add support for zlib decompression

2020-08-08T02:31:32+00:00

Add call to zlib's 'uncompress' function. Add function to display the
right error message depending on the decompression's return value.

Signed-off-by: Joao Marcos Costa