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cfg80211: verify format of uAPSD information

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The format is intended to be like the subfields
in the QoS Info field, verify that is the case.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-09-07 11:50:48 +02:00 • committed by John W. Linville
parent ff62084911
commit 4319e19327
1 changed files with 5 additions and 0 deletions
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5
net/wireless/nl80211.c
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@ -2627,10 +2627,15 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
if (tb[NL80211_STA_WME_UAPSD_QUEUES]) if (tb[NL80211_STA_WME_UAPSD_QUEUES])
params.uapsd_queues = params.uapsd_queues =
nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]); nla_get_u8(tb[NL80211_STA_WME_UAPSD_QUEUES]);
if (params.uapsd_queues & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
return -EINVAL;
if (tb[NL80211_STA_WME_MAX_SP]) if (tb[NL80211_STA_WME_MAX_SP])
params.max_sp = params.max_sp =
nla_get_u8(tb[NL80211_STA_WME_MAX_SP]); nla_get_u8(tb[NL80211_STA_WME_MAX_SP]);
if (params.max_sp & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
return -EINVAL;
} }
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&