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>
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 982690a..bfd72864 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -847,32 +847,6 @@
mutex_unlock(&local->iflist_mtx);
}
-ieee80211_rx_result
-ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_PROBE_REQ:
- case IEEE80211_STYPE_AUTH:
- skb_queue_tail(&sdata->skb_queue, skb);
- ieee80211_queue_work(&local->hw, &sdata->work);
- return RX_QUEUED;
- }
-
- return RX_DROP_MONITOR;
-}
-
int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
struct cfg80211_ibss_params *params)
{
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index f8c8f10..a3bcaa3 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -981,8 +981,6 @@
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_disassoc_request *req,
void *cookie);
-ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb);
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata);
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
@@ -1002,8 +1000,6 @@
/* IBSS code */
void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
-ieee80211_rx_result
-ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
u8 *bssid, u8 *addr, u32 supp_rates,
gfp_t gfp);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 83b346c..c8a4f19 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -702,28 +702,3 @@
INIT_LIST_HEAD(&ifmsh->preq_queue.list);
spin_lock_init(&ifmsh->mesh_preq_queue_lock);
}
-
-ieee80211_rx_result
-ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_ACTION:
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- skb_queue_tail(&sdata->skb_queue, skb);
- ieee80211_queue_work(&local->hw, &sdata->work);
- return RX_QUEUED;
- }
-
- return RX_CONTINUE;
-}
diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index c88087f..ebd3f1d 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -237,8 +237,6 @@
struct sta_info *stainfo, struct sk_buff *skb);
void ieee80211s_stop(void);
void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
-ieee80211_rx_result
-ieee80211_mesh_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata);
void ieee80211_mesh_root_setup(struct ieee80211_if_mesh *ifmsh);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 4a5b29d..036f1bf 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1633,33 +1633,6 @@
ieee80211_bss_info_change_notify(sdata, changed);
}
-ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
- struct sk_buff *skb)
-{
- struct ieee80211_local *local = sdata->local;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- case IEEE80211_STYPE_DEAUTH:
- case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_ACTION:
- skb_queue_tail(&sdata->skb_queue, skb);
- ieee80211_queue_work(&local->hw, &sdata->work);
- return RX_QUEUED;
- }
-
- return RX_DROP_MONITOR;
-}
-
void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 3adcda5..40fe279 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1950,8 +1950,11 @@
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 @@
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 @@
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 @@
{
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 @@
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,