diff options
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 9c7490cb2243..8bc3d3669348 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -3,7 +3,7 @@ * * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> * Copyright 2013-2015 Intel Mobile Communications GmbH - * Copyright (C) 2015-2016 Intel Deutschland GmbH + * Copyright (C) 2015-2017 Intel Deutschland GmbH * * This file is GPLv2 as found in COPYING. */ @@ -2042,6 +2042,7 @@ static int ieee80211_change_bss(struct wiphy *wiphy, params->basic_rates_len, &sdata->vif.bss_conf.basic_rates); changed |= BSS_CHANGED_BASIC_RATES; + ieee80211_check_rate_mask(sdata); } if (params->ap_isolate >= 0) { @@ -2685,6 +2686,21 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, return ret; } + /* + * If active validate the setting and reject it if it doesn't leave + * at least one basic rate usable, since we really have to be able + * to send something, and if we're an AP we have to be able to do + * so at a basic rate so that all clients can receive it. + */ + if (rcu_access_pointer(sdata->vif.chanctx_conf) && + sdata->vif.bss_conf.chandef.chan) { + u32 basic_rates = sdata->vif.bss_conf.basic_rates; + enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; + + if (!(mask->control[band].legacy & basic_rates)) + return -EINVAL; + } + for (i = 0; i < NUM_NL80211_BANDS; i++) { struct ieee80211_supported_band *sband = wiphy->bands[i]; int j; |