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authorJouni Malinen2014-10-20 13:20:45 +0300
committerJohannes Berg2014-10-20 16:39:23 +0200
commit988568669d171774b96e59fe35ef575df7f8cffd (patch)
tree177772b25c1cc75c298d8cf1a4245dcffe38d691 /net/wireless
parent89c771e5a62b856f4705f189892c489190edaec1 (diff)
cfg80211: Specify frame and reason code for NL80211_CMD_DEL_STATION
The optional NL80211_ATTR_MGMT_SUBTYPE and NL80211_ATTR_REASON_CODE attributes can now be included in NL80211_CMD_DEL_STATION to indicate to the driver which frame (Deauthentication/Disassociation) and reason code in that frame should be used to indicate removal to the specific station. This is used by drivers that implement AP SME and generate those frames internally. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c21
-rw-r--r--net/wireless/trace.h10
2 files changed, 29 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 40cf7b937926..0c0f2045e1f8 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -4414,6 +4414,27 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
if (!rdev->ops->del_station)
return -EOPNOTSUPP;
+ if (info->attrs[NL80211_ATTR_MGMT_SUBTYPE]) {
+ params.subtype =
+ nla_get_u8(info->attrs[NL80211_ATTR_MGMT_SUBTYPE]);
+ if (params.subtype != IEEE80211_STYPE_DISASSOC >> 4 &&
+ params.subtype != IEEE80211_STYPE_DEAUTH >> 4)
+ return -EINVAL;
+ } else {
+ /* Default to Deauthentication frame */
+ params.subtype = IEEE80211_STYPE_DEAUTH >> 4;
+ }
+
+ if (info->attrs[NL80211_ATTR_REASON_CODE]) {
+ params.reason_code =
+ nla_get_u16(info->attrs[NL80211_ATTR_REASON_CODE]);
+ if (params.reason_code == 0)
+ return -EINVAL; /* 0 is reserved */
+ } else {
+ /* Default to reason code 2 */
+ params.reason_code = WLAN_REASON_PREV_AUTH_NOT_VALID;
+ }
+
return rdev_del_station(rdev, dev, &params);
}
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index b1339400631d..cdb2c2ef1ae1 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -688,14 +688,20 @@ DECLARE_EVENT_CLASS(station_del,
WIPHY_ENTRY
NETDEV_ENTRY
MAC_ENTRY(sta_mac)
+ __field(u8, subtype)
+ __field(u16, reason_code)
),
TP_fast_assign(
WIPHY_ASSIGN;
NETDEV_ASSIGN;
MAC_ASSIGN(sta_mac, params->mac);
+ __entry->subtype = params->subtype;
+ __entry->reason_code = params->reason_code;
),
- TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", station mac: " MAC_PR_FMT,
- WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac))
+ TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT ", station mac: " MAC_PR_FMT
+ ", subtype: %u, reason_code: %u",
+ WIPHY_PR_ARG, NETDEV_PR_ARG, MAC_PR_ARG(sta_mac),
+ __entry->subtype, __entry->reason_code)
);
DEFINE_EVENT(station_del, rdev_del_station,