dissect.jffs.jffs2

Module Contents

Classes

JFFS2

Journalling Flash File System, version 2 implementation.

DirEntry

INode

DataStream

JFFS2 buffered stream that provides easy aligned reads.

Attributes

log

dissect.jffs.jffs2.log
class dissect.jffs.jffs2.JFFS2(fh: BinaryIO)

Journalling Flash File System, version 2 implementation.

Currently supports the most common compression formats (zlib, lzo, none and zero). CRC checksums are currently ignored. Compression formats rtime, rubinmips, copy and dynrubin are not supported.

References

inode(inum: int, type: int | None = None, parent: INode | None = None) → INode
get(path: str | int, node: INode | None = None) → INode
class dissect.jffs.jffs2.DirEntry(fs: JFFS2, entry: dissect.jffs.c_jffs2.c_jffs2.jffs2_raw_dirent)
name() → str
class dissect.jffs.jffs2.INode(fs: JFFS2, inum: int, type: int | None = None, parent: INode | None = None)
__repr__() → str

Return repr(self).

inodes() → list[tuple[dissect.jffs.c_jffs2.c_jffs2.jffs2_raw_inode, int]]
inode() → dissect.jffs.c_jffs2.c_jffs2.jffs2_raw_inode
size() → int
mode() → int
type() → int
atime() → datetime.datetime
mtime() → datetime.datetime
ctime() → datetime.datetime
uid() → int
gid() → int
is_dir() → bool
is_file() → bool
listdir() → dict
iterdir() → Iterator[tuple[str, INode]]
open() → dissect.util.stream.RunlistStream

Return data contained in all associated data inodes.

Supports JFFS2_COMPR_NONE, JFFS2_COMPR_ZERO, JFFS2_COMPR_ZLIB and JFFS2_COMPR_LZO.

Does not support JFFS2_COMPR_RTIME, JFFS2_COMPR_RUBINMIPS, JFFS2_COMPR_COPY and JFFS2_COMPR_DYNRUBIN.

class dissect.jffs.jffs2.DataStream(fs: JFFS2, inum: int, size: int)

Bases: dissect.util.stream.AlignedStream

JFFS2 buffered stream that provides easy aligned reads.

To read file contents, the log inodes are played back in version order, to recreate a map of where each range of data is located on the physical medium.