mac80211: mesh: factor out common plink close/estab code
Reject and accepted close events always put the host in the
holding state and compute a reason code based only on the
current state. Likewise on establish we always do the same
setup. Put these in functions to save some duplicated code.
Signed-off-by: Bob Copeland <bob@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index c3a3faf..3bab76f 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -655,6 +655,39 @@
return changed;
}
+static void mesh_plink_close(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta,
+ enum plink_event event)
+{
+ struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg;
+
+ __le16 reason = (event == CLS_ACPT) ?
+ cpu_to_le16(WLAN_REASON_MESH_CLOSE) :
+ cpu_to_le16(WLAN_REASON_MESH_CONFIG);
+
+ sta->reason = reason;
+ sta->plink_state = NL80211_PLINK_HOLDING;
+ if (!mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout))
+ sta->ignore_plink_timer = true;
+}
+
+static u32 mesh_plink_establish(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta)
+{
+ struct mesh_config *mshcfg = &sdata->u.mesh.mshcfg;
+ u32 changed = 0;
+
+ del_timer(&sta->plink_timer);
+ sta->plink_state = NL80211_PLINK_ESTAB;
+ changed |= mesh_plink_inc_estab_count(sdata);
+ changed |= mesh_set_ht_prot_mode(sdata);
+ changed |= mesh_set_short_slot_time(sdata);
+ mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n", sta->sta.addr);
+ ieee80211_mps_sta_status_update(sta);
+ changed |= ieee80211_mps_set_sta_local_pm(sta, mshcfg->power_mode);
+ return changed;
+}
+
void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len,
@@ -671,7 +704,7 @@
u8 ie_len;
u8 *baseaddr;
u32 changed = 0;
- __le16 plid, llid, reason;
+ __le16 plid, llid;
/* need action_code, aux */
if (len < IEEE80211_MIN_ACTION_SIZE + 3)
@@ -782,10 +815,10 @@
if (!sta && !matches_local) {
rcu_read_unlock();
- reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG);
llid = 0;
mesh_plink_frame_tx(sdata, WLAN_SP_MESH_PEERING_CLOSE,
- mgmt->sa, llid, plid, reason);
+ mgmt->sa, llid, plid,
+ cpu_to_le16(WLAN_REASON_MESH_CONFIG));
return;
} else if (!sta) {
/* ftype == WLAN_SP_MESH_PEERING_OPEN */
@@ -850,7 +883,6 @@
mpl_dbg(sdata, "peer %pM in state %s got event %s\n", mgmt->sa,
mplstates[sta->plink_state], mplevents[event]);
- reason = 0;
spin_lock_bh(&sta->lock);
switch (sta->plink_state) {
case NL80211_PLINK_LISTEN:
@@ -880,18 +912,11 @@
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
- reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG);
case CLS_ACPT:
- if (!reason)
- reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
- sta->reason = reason;
- sta->plink_state = NL80211_PLINK_HOLDING;
- if (!mod_plink_timer(sta,
- mshcfg->dot11MeshHoldingTimeout))
- sta->ignore_plink_timer = true;
-
+ mesh_plink_close(sdata, sta, event);
action = WLAN_SP_MESH_PEERING_CLOSE;
break;
+
case OPN_ACPT:
/* retry timer is left untouched */
sta->plink_state = NL80211_PLINK_OPN_RCVD;
@@ -914,32 +939,15 @@
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
- reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG);
case CLS_ACPT:
- if (!reason)
- reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
- sta->reason = reason;
- sta->plink_state = NL80211_PLINK_HOLDING;
- if (!mod_plink_timer(sta,
- mshcfg->dot11MeshHoldingTimeout))
- sta->ignore_plink_timer = true;
-
+ mesh_plink_close(sdata, sta, event);
action = WLAN_SP_MESH_PEERING_CLOSE;
break;
case OPN_ACPT:
action = WLAN_SP_MESH_PEERING_CONFIRM;
break;
case CNF_ACPT:
- del_timer(&sta->plink_timer);
- sta->plink_state = NL80211_PLINK_ESTAB;
- changed |= mesh_plink_inc_estab_count(sdata);
- changed |= mesh_set_ht_prot_mode(sdata);
- changed |= mesh_set_short_slot_time(sdata);
- mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
- sta->sta.addr);
- ieee80211_mps_sta_status_update(sta);
- changed |= ieee80211_mps_set_sta_local_pm(sta,
- mshcfg->power_mode);
+ changed |= mesh_plink_establish(sdata, sta);
break;
default:
break;
@@ -950,30 +958,13 @@
switch (event) {
case OPN_RJCT:
case CNF_RJCT:
- reason = cpu_to_le16(WLAN_REASON_MESH_CONFIG);
case CLS_ACPT:
- if (!reason)
- reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
- sta->reason = reason;
- sta->plink_state = NL80211_PLINK_HOLDING;
- if (!mod_plink_timer(sta,
- mshcfg->dot11MeshHoldingTimeout))
- sta->ignore_plink_timer = true;
-
+ mesh_plink_close(sdata, sta, event);
action = WLAN_SP_MESH_PEERING_CLOSE;
break;
case OPN_ACPT:
- del_timer(&sta->plink_timer);
- sta->plink_state = NL80211_PLINK_ESTAB;
- changed |= mesh_plink_inc_estab_count(sdata);
- changed |= mesh_set_ht_prot_mode(sdata);
- changed |= mesh_set_short_slot_time(sdata);
- mpl_dbg(sdata, "Mesh plink with %pM ESTABLISHED\n",
- sta->sta.addr);
+ changed |= mesh_plink_establish(sdata, sta);
action = WLAN_SP_MESH_PEERING_CONFIRM;
- ieee80211_mps_sta_status_update(sta);
- changed |= ieee80211_mps_set_sta_local_pm(sta,
- mshcfg->power_mode);
break;
default:
break;
@@ -983,13 +974,10 @@
case NL80211_PLINK_ESTAB:
switch (event) {
case CLS_ACPT:
- reason = cpu_to_le16(WLAN_REASON_MESH_CLOSE);
- sta->reason = reason;
changed |= __mesh_plink_deactivate(sta);
- sta->plink_state = NL80211_PLINK_HOLDING;
- mod_plink_timer(sta, mshcfg->dot11MeshHoldingTimeout);
changed |= mesh_set_ht_prot_mode(sdata);
changed |= mesh_set_short_slot_time(sdata);
+ mesh_plink_close(sdata, sta, event);
action = WLAN_SP_MESH_PEERING_CLOSE;
break;
case OPN_ACPT: