Message 265452 - Python tracker

Message265452

Author	Colm Buckley
Recipients	Colm Buckley, doko, lemburg, matejcik, rhettinger, skrah, socketpair, thomas-petazzoni, vstinner
Date	2016-05-13.08:18:43
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1463127523.86.0.358210205168.issue26839@psf.upfronthosting.co.za>
In-reply-to

Content
The attached patch (against 20160330) addresses the issue for me on Linux; it has not been tested on other platforms. It adds the GRND_NONBLOCK flag to the getrandom() call and sends the appropriate failure return if it returns due to lack of entropy. The enclosing functions fall back to reading from /dev/urandom in this case. Affected files: Python/random.c - changes to py_getrandom() configure.ac and pyconfig.h.in - look for linux/random.h for inclusion Can this, or something similar, be considered for integration with mainline?

Content

The attached patch (against 20160330) addresses the issue for me on Linux; it has not been tested on other platforms. It adds the GRND_NONBLOCK flag to the getrandom() call and sends the appropriate failure return if it returns due to lack of entropy. The enclosing functions fall back to reading from /dev/urandom in this case.

Affected files:

Python/random.c - changes to py_getrandom()
configure.ac and pyconfig.h.in - look for linux/random.h for inclusion

Can this, or something similar, be considered for integration with mainline?

History
Date	User	Action	Args
2016-05-13 08:18:43	Colm Buckley	set	recipients: + Colm Buckley, lemburg, rhettinger, doko, vstinner, matejcik, skrah, socketpair, thomas-petazzoni
2016-05-13 08:18:43	Colm Buckley	set	messageid: <1463127523.86.0.358210205168.issue26839@psf.upfronthosting.co.za>
2016-05-13 08:18:43	Colm Buckley	link	issue26839 messages
2016-05-13 08:18:43	Colm Buckley	create