diff options
| author |   Arik Nemtsov <arik@wizery.com> | 2015-10-25 10:59:34 +0200 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2015-11-03 10:42:47 +0100 |
| commit | 57f255f58165974c131f048b4302728052d92d29 (patch) | |
| tree | acd1ba928536735713b08174a627f2a999e2e058 /net/mac80211/tdls.c | |
| parent | mac80211: don't reconfigure sched scan in case of wowlan (diff) | |
| download | linux-dev-57f255f58165974c131f048b4302728052d92d29.tar.xz linux-dev-57f255f58165974c131f048b4302728052d92d29.zip | |
mac80211: TDLS: add proper HT-oper IE
When 11n peers performs a TDLS connection on a legacy BSS, the HT
operation IE must be specified according to IEEE802.11-2012 section
9.23.3.2. Otherwise HT-protection is compromised and the medium becomes
noisy for both the TDLS and the BSS links.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/tdls.c')
| -rw-r--r-- | net/mac80211/tdls.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c index ecc5e2a8f80b..c9eeb3f12808 100644 --- a/net/mac80211/tdls.c +++ b/net/mac80211/tdls.c @@ -591,12 +591,19 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata, offset = noffset; } - /* if HT support is only added in TDLS, we need an HT-operation IE */ + /* + * if HT support is only added in TDLS, we need an HT-operation IE. + * add the IE as required by IEEE802.11-2012 9.23.3.2. + */ if (!ap_sta->sta.ht_cap.ht_supported && sta->sta.ht_cap.ht_supported) { + u16 prot = IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED | + IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT | + IEEE80211_HT_OP_MODE_NON_HT_STA_PRSNT; + pos = skb_put(skb, 2 + sizeof(struct ieee80211_ht_operation)); - /* send an empty HT operation IE */ ieee80211_ie_build_ht_oper(pos, &sta->sta.ht_cap, - &sdata->vif.bss_conf.chandef, 0); + &sdata->vif.bss_conf.chandef, prot, + true); } ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator); |