Date: Tue, 12 May 2015 16:56:41 +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-Rh44RZh4L7@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-200128-21060@https.bugs.freebsd.org/bugzilla/> References: <bug-200128-21060@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200128 --- Comment #1 from commit-hook@freebsd.org --- A commit references this bug: Author: adrian Date: Tue May 12 16:55:52 UTC 2015 New revision: 282820 URL: https://svnweb.freebsd.org/changeset/base/282820 Log: 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. Tested: * wpi(4) (author) * iwn(4) - Intel 5100, STA mode (me) PR: kern/200128 Submitted by: Andriy Voskoboinyk <s3erios@gmail.com> Changes: head/sys/net80211/ieee80211.h head/sys/net80211/ieee80211_adhoc.c head/sys/net80211/ieee80211_hostap.c head/sys/net80211/ieee80211_input.h head/sys/net80211/ieee80211_output.c head/sys/net80211/ieee80211_sta.c head/sys/net80211/ieee80211_wds.c -- You are receiving this mail because: You are the assignee for the bug.
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