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Understanding the modernization of the OpenBSD network stack, part 2: A story of if_get(9)

Fri, 13 Jan 2017 15:50:03 GMT

Martin Pieuchot has written another article chronicling the modernization of the network stack. Martin writes,

I wrote a second article about the network MP thingy.

The article talks about a new API built on top of a generic solution for a MP problem.

The article, A story of if_get(9), is a followup to the part one article we featured earlier as Understanding the modernization of the OpenBSD network stack, part 1: ART single thread performances.

Read both for a deep dive in the ongoing and exciting work going on right now in the OpenBSD network stack.

Needless to say, editors@ really look forward to seeing more articles in this series.




Errata SECURITY FIX: January 5, 2017

Wed, 11 Jan 2017 10:41:07 GMT

Avoid possible side-channel leak of ECDSA private keys when signing.

A source code patch exists which remedies this problem:

for 6.0.

for 5.9

This is related to CVE-2016-7056 "ECDSA P-256 timing attack key recovery (OpenSSL, LibreSSL, BoringSSL)" Additional details can be read here: http://seclists.org/oss-sec/2017/q1/52

Thanks to M:Tier https://stable.mtier.org for raising awareness on this patch.




WiFi: 11n hostap mode added to athn(4) driver, testers wanted

Mon, 09 Jan 2017 13:33:21 GMT

OpenBSD as WiFi access points look set to be making a comeback in the near future.

With this diff https://marc.info/?l=openbsd-tech&m=148396652007923&w=2, Stefan Sperling added 802.11n hostap mode, with full support initially for the Atheros chips supported by the athn(4) driver.

This diff adds 11n support to the athn(4) driver.
Requires -current net80211 code from today.

Tested in hostap mode and client mode with:

athn0 at pci1 dev 0 function 0 "Atheros AR9281" rev 0x01: apic 2 int 16
athn0: AR9280 rev 2 (2T2R), ROM rev 22, adddress xx:xx:xx:xx:xx:xx
Read more...



Get your name in the relayd book

Sun, 08 Jan 2017 04:02:42 GMT

Michael W Lucas is offering the chance to get your name in his forthcoming book on relayd and httpd:

There’s a long tradition amongst science fiction writers of selling bit parts in books in exchange for charity donations. It’s called tuckerization.

I see no reason why science fiction writers should have all the fun.

I need a sample user for the forthcoming book on OpenBSD’s httpd and relayd. This user gets referred to in the user authentication sections as well as on having users manage web sites. They will also get randomly called out whenever it makes sense to me.

That sample user could be you.

All it would cost is a donation to the OpenBSD Foundation.

See Michael's blog for details, and donate your way to fame(?) if you can!