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authorJohannes Berg <johannes.berg@intel.com>2010-06-10 10:21:34 +0200
committerJohn W. Linville <linville@tuxdriver.com>2010-06-14 15:39:26 -0400
commit77a121c3a88eb00a4b5e753d083dbb7d49fefb0a (patch)
treed1c802c9133a149094b484cd4796faeb9d7201fb /net/mac80211/rx.c
parent36b3a628a4e85d002ee8813ebd2a5caef6d3c1a7 (diff)
mac80211: pull mgmt frame rx into rx handler
Some code is duplicated between ibss, mesh and managed mode regarding the queueing of management frames. Since all modes now use a common skb queue and a common work function, we can pull the queueing code into the rx handler directly and remove the duplicated length checks etc. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c61
1 files changed, 48 insertions, 13 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 3adcda502b7d..40fe2798cbf5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1950,8 +1950,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (len < IEEE80211_MIN_ACTION_SIZE + 1)
break;
- if (sdata->vif.type == NL80211_IFTYPE_STATION)
- return ieee80211_sta_rx_mgmt(sdata, rx->skb);
+ if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+ skb_queue_tail(&sdata->skb_queue, rx->skb);
+ ieee80211_queue_work(&local->hw, &sdata->work);
+ return RX_QUEUED;
+ }
switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ:
@@ -2003,7 +2006,9 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (memcmp(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN))
break;
- return ieee80211_sta_rx_mgmt(sdata, rx->skb);
+ skb_queue_tail(&sdata->skb_queue, rx->skb);
+ ieee80211_queue_work(&local->hw, &sdata->work);
+ return RX_QUEUED;
}
break;
case WLAN_CATEGORY_SA_QUERY:
@@ -2021,9 +2026,11 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
break;
case WLAN_CATEGORY_MESH_PLINK:
case WLAN_CATEGORY_MESH_PATH_SEL:
- if (ieee80211_vif_is_mesh(&sdata->vif))
- return ieee80211_mesh_rx_mgmt(sdata, rx->skb);
- break;
+ if (!ieee80211_vif_is_mesh(&sdata->vif))
+ break;
+ skb_queue_tail(&sdata->skb_queue, rx->skb);
+ ieee80211_queue_work(&local->hw, &sdata->work);
+ return RX_QUEUED;
}
/*
@@ -2080,10 +2087,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
{
struct ieee80211_sub_if_data *sdata = rx->sdata;
ieee80211_rx_result rxs;
+ struct ieee80211_mgmt *mgmt = (void *)rx->skb->data;
+ __le16 stype;
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_MONITOR;
+ if (rx->skb->len < 24)
+ return RX_DROP_MONITOR;
+
if (ieee80211_drop_unencrypted_mgmt(rx))
return RX_DROP_UNUSABLE;
@@ -2091,16 +2103,39 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
if (rxs != RX_CONTINUE)
return rxs;
- if (ieee80211_vif_is_mesh(&sdata->vif))
- return ieee80211_mesh_rx_mgmt(sdata, rx->skb);
+ stype = mgmt->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE);
- if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
- return ieee80211_ibss_rx_mgmt(sdata, rx->skb);
+ if (!ieee80211_vif_is_mesh(&sdata->vif) &&
+ sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+ sdata->vif.type != NL80211_IFTYPE_STATION)
+ return RX_DROP_MONITOR;
- if (sdata->vif.type == NL80211_IFTYPE_STATION)
- return ieee80211_sta_rx_mgmt(sdata, rx->skb);
+ switch (stype) {
+ case cpu_to_le16(IEEE80211_STYPE_BEACON):
+ case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+ /* process for all: mesh, mlme, ibss */
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+ case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+ /* process only for station */
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return RX_DROP_MONITOR;
+ break;
+ case cpu_to_le16(IEEE80211_STYPE_PROBE_REQ):
+ case cpu_to_le16(IEEE80211_STYPE_AUTH):
+ /* process only for ibss */
+ if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
+ return RX_DROP_MONITOR;
+ break;
+ default:
+ return RX_DROP_MONITOR;
+ }
- return RX_DROP_MONITOR;
+ /* queue up frame and kick off work to process it */
+ skb_queue_tail(&sdata->skb_queue, rx->skb);
+ ieee80211_queue_work(&rx->local->hw, &sdata->work);
+
+ return RX_QUEUED;
}
static void ieee80211_rx_michael_mic_report(struct ieee80211_hdr *hdr,