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Planet FSFE

vmdebootstrap Sprint Report

This is now a little overdue, but here it is. On the 10th and 11th of November, the second vmdebootstrap sprint took place. Lars Wirzenius (liw), Ana Custura (ana_c) and myself were present. liw focussed on the core of vmdebootstrap, where he sketched out what the future of vmdebootstrap may look like. He documented this in a mailing list post and also presented (video).

Ana and myself worked on live-wrapper, which uses vmdebootstrap internally for the squashfs generation. I worked on improving logging, using a better method for getting paths within the image, enabling generation of Packages and Release files for the image archive and also made the images installable (live-wrapper 0.5 onwards will include an installer by default).

PATHspider Plugins

This post is cross-posted on the MAMI Project blog here.

In today’s Internet we see an increasing deployment of middleboxes. While middleboxes provide in-network functionality that is necessary to keep networks manageable and economically viable, any packet mangling — whether essential for the needed functionality or accidental as an unwanted side effect — makes it more and more difficult to deploy new protocols or extensions of existing protocols.

For the evolution of the protocol stack, it is important to know which network impairments exist and potentially need to be worked around. While classical network measurement tools are often focused on absolute performance values, PATHspider performs A/B testing between two different protocols or different protocol extensions to perform controlled experiments of protocol-dependent connectivity problems as well as differential treatment.

Powers to Investigate

The Communication Data Bill was draft legislation introduced first in May 2012. It sought to compel ISPs to store details of communications usage so that it can later be used for law enforcement purposes. In 2013 the passage of this bill into law had been blocked and the bill was dead.

In 2014 we saw the Data Retention and Investigatory Powers Act 2014 appear. This seemed to be in response to the Data Retention Directive being successfully challenged at the European Court of Justice by Digital Rights Ireland on human rights grounds, with a judgment given in 2014. It essentially reimplemented the Data Retention Directive along with a whole load of other nasty things.

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