Java Serialized Objects

[arno.nyhm]

is it possible to create a structure library to read a ser file of java serialized objects?


note: the protocol description:
http://java.sun.com/javase/6/docs/platf ... tocol.html

[Barfy]

It is possible to define virtually any format with Structure Viewer. Currently there are two main scenarios that may make it very hard or impossible to describe with a Structure Viewer:

1. The data format is in fact compressed stream of some other format. Compressed streams usually require sophisticated bit stream manipuilation techniques, which are not implemented in the current version of Structure Viewer.

2. Data format contains variable-length bit streams. Variable-length bit streams are not currently supported by the Structure Viewer.

[arno.nyhm]

thanks for your reply.

i have uncompressed ser files with no encryption etc.

i have made some structures etc so it works nice :-) the structure view is a very good tool to peek into hex files in combination with the pattern coloring :-)



but now i am stuck at the process to resolve this parts:

values: // The size and types are described by the
// classDesc for the current object

newHandle: // The next number in sequence is assigned
// to the object being serialized or deserialized

reset: // The set of known objects is discarded
// so the objects of the exception do not
// overlap with the previously sent objects
// or with objects that may be sent after
// the exception

especially at this part:

nowrclass:
values // fields in order of class descriptor

i dont know how to remember the class definitions.
or it is possible to create adhoc structures?


and this:

Code: Select all

newHandle: // The next number in sequence is assigned
// to the object being serialized or deserialized

i dont know how to make this backreferences ... how i can remember the objectstructure.

[arno.nyhm]

an other question:

it is possible to assign a public substructure to some patterns?

for example i like to bind the structure "content" to "73 72"
(that means in the ser file "TC_OBJECT" followed by "TC_CLASSDESC")

[Barfy]

I don't quite understand your question. But I can suggest you look at the Structure Viewer's documentation. It contains several tools that can help you choose between different structures to bind depending on the source data.