linux-toradex.git/fs/squashfs/squashfs.h, branch v3.10.41

Squashfs: Make ZLIB compression support optional

2011-07-22T02:01:28+00:00

Squashfs now supports XZ and LZO compression in addition to ZLIB.
As such it no longer makes sense to always include ZLIB support.
In particular embedded systems may only use LZO or XZ compression, and
the ability to exclude ZLIB support will reduce kernel size.

Signed-off-by: Phillip Lougher

Squashfs: update email address

2011-05-26T09:49:11+00:00

My existing email address may stop working in a month or two, so update
email to one that will continue working.

Signed-off-by: Phillip Lougher

Squashfs: add sanity checks to fragment reading at mount time

2011-05-25T17:21:33+00:00

Fsfuzzer generates corrupted filesystems which throw a warn_on in
kmalloc.  One of these is due to a corrupted superblock fragments field.
Fix this by checking that the number of bytes to be read (and allocated)
does not extend into the next filesystem structure.

Also add a couple of other sanity checks of the mount-time fragment table
structures.

Signed-off-by: Phillip Lougher

Squashfs: add sanity checks to lookup table reading at mount time

2011-05-25T17:21:32+00:00

Fsfuzzer generates corrupted filesystems which throw a warn_on in
kmalloc.  One of these is due to a corrupted superblock inodes field.
Fix this by checking that the number of bytes to be read (and allocated)
does not extend into the next filesystem structure.

Also add a couple of other sanity checks of the mount-time lookup table
structures.

Signed-off-by: Phillip Lougher

Squashfs: add sanity checks to id reading at mount time

2011-05-25T17:21:32+00:00

Fsfuzzer generates corrupted filesystems which throw a warn_on in
kmalloc.  One of these is due to a corrupted superblock no_ids field.
Fix this by checking that the number of bytes to be read (and allocated)
does not extend into the next filesystem structure.

Also add a couple of other sanity checks of the mount-time id table
structures.

Signed-off-by: Phillip Lougher

Squashfs: move table allocation into squashfs_read_table()

2011-05-25T17:21:31+00:00

This eliminates a lot of duplicate code.

Signed-off-by: Phillip Lougher

Squashfs: extend decompressor framework to handle compression options

2011-02-28T18:21:59+00:00

Extend decompressor framework to handle compression options stored in
the filesystem.  These options can be used by the relevant decompressor
at initialisation time to over-ride defaults.

The presence of compression options in the filesystem is indicated by
the COMP_OPT filesystem flag.  If present the data is read from the
filesystem and passed to the decompressor init function.  The decompressor
init function signature has been extended to take this data.

Also update the init function signature in the glib, lzo and xz
decompressor wrappers.

Signed-off-by: Phillip Lougher

Squashfs: simplify CONFIG_SQUASHFS_LZO handling

2011-01-13T21:38:46+00:00

Get rid of messy repeated #if(n)def CONFIG_SQUASHFS_LZO code
in decompressor.c

Signed-off-by: Phillip Lougher

Squashfs: move squashfs_i() definition from squashfs.h

2011-01-13T21:24:15+00:00

Move squashfs_i() definition out of squashfs.h, this eliminates
the need to #include squashfs_fs_i.h from numerous files.

Signed-off-by: Phillip Lougher

Squashfs: fix filename typo

2010-08-05T22:52:53+00:00

Signed-off-by: Phillip Lougher