[Bug 200128] [net80211] [patch]: exclude QoS Null frames from sequence number checking
bugzilla-noreply at freebsd.org
bugzilla-noreply at freebsd.org
Tue May 12 16:56:41 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200128
--- Comment #1 from commit-hook at 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 at 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.
More information about the freebsd-wireless
mailing list