Date: Mon, 11 May 2015 13:00:46 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-wireless@FreeBSD.org Subject: [Bug 200128] [net80211] [patch]: exclude QoS Null frames from sequence number checking Message-ID: <bug-200128-21060@https.bugs.freebsd.org/bugzilla/>
next in thread | raw e-mail | index | archive | help
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200128 Bug ID: 200128 Summary: [net80211] [patch]: exclude QoS Null frames from sequence number checking Product: Base System Version: 11.0-CURRENT Hardware: Any OS: Any Status: New Keywords: patch Severity: Affects Only Me Priority: --- Component: wireless Assignee: freebsd-wireless@FreeBSD.org Reporter: s3erios@gmail.com Keywords: patch Created attachment 156655 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=156655&action=edit Do not check sequence number for QoS Null frames; set it for generated QoS Null frames to 0 >From IEEE Std. 802.11-2012, 8.3.2.1 "Data frame format", p. 415 (513): "The Sequence Control field for QoS (+)Null frames is ignored by the receiver upon reception." At this moment, any <mode>_input() function interprets them as regular QoS data frames with TID = 0. As a result, stations, that use another TX sequence for QoS Null frames (e.g. wpi(4), where (QoS) Null frames are generated by the firmware), may experience significant packet loss with any other NIC in hostap mode. -- You are receiving this mail because: You are the assignee for the bug.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?bug-200128-21060>