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Pike
====
# Pike

Pike is a (nearly) pure-Python framework for writing SMB2/3 protocol correctness tests.

There is also (older) [API documentation from epydoc](http://emc-isilon.github.io/pike/api/index.html).
---

Prerequisites
=============
<!-- begin TOC -->
- [Pike](#pike)
- [Prerequisites](#prerequisites)
- [Install](#install)
- [Build instructions](#build-instructions)
- [Running tests](#running-tests)
- [Kerberos Hints](#kerberos-hints)
- [Decoding BufferOverrun](#decoding-bufferoverrun)
- [With Pike](#with-pike)
- [With Wireshark](#with-wireshark)
- [License](#license)
- [Other](#other)

<!-- end TOC -->

---

[![PyPI version](https://badge.fury.io/py/pike-smb2.svg)](https://badge.fury.io/py/pike-smb2)
[![Commits since](https://img.shields.io/github/commits-since/emc-isilon/pike/latest.svg)](https://img.shields.io/github/commits-since/emc-isilon/pike/latest.svg)
[![Python versions](https://img.shields.io/pypi/pyversions/pike-smb2?longCache=True)](https://pypi.org/project/pike-smb2/)
[![License](https://img.shields.io/badge/License-BSD-blue.svg)](https://opensource.org/licenses/BSD-2-Clause)

## Prerequisites

Required for basic functionality:

* Python 2.7, 3.6+
* PyCryptodomex
- Python 2.7, 3.6+
- PyCryptodomex

Required for building kerberos library:

* Python development headers
* MIT gssapi\_krb5 (plus devel headers)
* Ubuntu: krb5-user, libkrb5-dev
- Python development headers
- MIT `gssapi_krb5` (plus development headers)
- Ubuntu: `krb5-user`, `libkrb5-dev`

Optional: epydoc for doc generation

Install
=======
## Install

$ python -m pip install pike-smb2

[pike-smb2 on pypi.org](https://pypi.org/project/pike-smb2/).

Build instructions
==================
## Build instructions

Ubuntu 14.04 / 16.04

apt-get install -y --no-install-recommends krb5-user libkrb5-dev python-dev build-essential python2.7 python-pip
pip install setuptools pycryptodomex
python setup.py install

Running tests
=============
## Running tests

The tests in the test subdirectory are ordinary Python unittest tests and
can be run as usual. The following environment variables are used by
Expand Down Expand Up @@ -71,8 +86,7 @@ To run an individual test case

$ python -m unittest pike.test.echo.EchoTest.test_echo

Kerberos Hints
==============
## Kerberos Hints

Setting up MIT Kerberos as provided by many Linux distributions to interoperate
with an existing Active Directory and Pike is relatively simple.
Expand Down Expand Up @@ -103,15 +117,12 @@ hostname in order for Kerberos to figure out which ticket to use. If you
get errors during session setup when using an IP address, this is probably
the reason.


Decoding BufferOverrun
======================
## Decoding BufferOverrun

When pike encounters a buffer or boundary problem, `BufferOverrun` is
raised with the full packet bytes. This can be used in two ways.

With Pike
---------
### With Pike

For some problems, it may be necessary to run pike with a debugger
while decoding the packet bytes to reproduce runtime parsing or decoding
Expand All @@ -124,9 +135,8 @@ issues.
buf = array.array("B", unhexlify(b'00000114fe534d4240000000000000000000040001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000041000100110302008a8c2a17f5f24e5eb278dd8aaa90d42e1e0000000000010000001000000010006c52c4c7e53dd60166157c68c63dd60180005500d8000000605306062b0601050502a0493047a019301706092a864886f712010202060a2b06010401823702020aa32a3028a0261b246e6f745f646566696e65645f696e5f5246433431373840706c656173655f69676e6f72650000000100260000000000010020000100c93dfb463f3e99ed9030a66d28548c330a4ae9a65856237d00e61f68c14eb09f0000020004000000000001000200'))
nb = pike.netbios.Netbios()
nb.parse(buf)

With Wireshark
--------------

### With Wireshark

Other decoding problems may be easier to understand by looking at the packet
with a pcap analysis tool.
Expand All @@ -137,16 +147,19 @@ with a pcap analysis tool.
| text2pcap -i46 -T 445,445 - - \
| tshark -P -V -r -

* `xxd` decodes the ascii hex bytestream output from the `BufferOverrun` exception into binary
* `od` dumps the output to a format [wireshark can read](https://www.wireshark.org/docs/wsug_html_chunked/ChIOImportSection.html)
* `text2pcap` (wireshark) appends fake ethernet and IP headers to the SMB packet and writes a pcap file to stdout
* `tshark` (wireshark) decodes the SMB packet and displays full packet details
- `xxd` decodes the ascii hex bytestream output from the `BufferOverrun` exception into binary
- `od` dumps the output to a format [wireshark can read](https://www.wireshark.org/docs/wsug_html_chunked/ChIOImportSection.html)
- `text2pcap` (wireshark) appends fake ethernet and IP headers to the SMB packet and writes a pcap file to stdout
- `tshark` (wireshark) decodes the SMB packet and displays full packet details

License
=======
## License

This project, _pike_ and _pike-smb2_, is released under a Simplified BSD License granted by Dell Inc.'s Open Source Project program,
except code under `pykerb/` which is released under an Apache 2.0 License granted by Apple Inc.<br />
All project contributions are entirely reflective of the respective author(s) and not of Dell Inc. or Apple Inc.

See file [LICENSE](LICENSE) for licensing information.

## Other

There is older [API documentation from epydoc](http://emc-isilon.github.io/pike/api/index.html).

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