diff options
| author | Aviya Erenfeld <aviya.erenfeld@intel.com> | 2016-08-29 23:25:16 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-09-12 12:44:52 +0300 |
| commit | 42bd20d99857e69e368d5421ea402127d5835cd3 (patch) | |
| tree | 1ca2460a76e67311a2f5fa9cb0acda1c0a0e32d5 /net/mac80211/cfg.c | |
| parent | 480dd46b9d6812e5fb7172c305ee0f1154c26eed (diff) | |
| download | linux-42bd20d99857e69e368d5421ea402127d5835cd3.tar.xz | |
mac80211: add support for MU-MIMO air sniffer
add support to MU-MIMO air sniffer according groupID:
in monitor mode, use a given MU-MIMO groupID to monitor stations
that belongs to that group using MU-MIMO.
add support for following a station according to its MAC address
using VHT MU-MIMO sniffer:
the monitors wait until they get an action MU-MIMO notification
frame, then parses it in order to find the groupID that corresponds
to the given MAC address and monitors packets destined to that
groupID using VHT MU-MIMO.
Signed-off-by: Aviya Erenfeld <aviya.erenfeld@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index f2c8cd22d317..5d4afead804e 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -73,8 +73,29 @@ static int ieee80211_change_iface(struct wiphy *wiphy, sdata->u.mgd.use_4addr = params->use_4addr; } - if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { + if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { struct ieee80211_local *local = sdata->local; + struct ieee80211_sub_if_data *monitor_sdata; + u32 mu_mntr_cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER; + + monitor_sdata = rtnl_dereference(local->monitor_sdata); + if (monitor_sdata && + wiphy_ext_feature_isset(wiphy, mu_mntr_cap_flag)) { + memcpy(monitor_sdata->vif.bss_conf.mu_group.membership, + params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); + memcpy(monitor_sdata->vif.bss_conf.mu_group.position, + params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, + WLAN_USER_POSITION_LEN); + monitor_sdata->vif.mu_mimo_owner = true; + ieee80211_bss_info_change_notify(monitor_sdata, + BSS_CHANGED_MU_GROUPS); + + ether_addr_copy(monitor_sdata->u.mntr.mu_follow_addr, + params->macaddr); + } + + if (!flags) + return 0; if (ieee80211_sdata_running(sdata)) { u32 mask = MONITOR_FLAG_COOK_FRAMES | |