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mac80211: mesh: factor out common plink close/estab code

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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>
This commit is contained in:
Bob Copeland 2013-11-05 11:16:52 -08:00 committed by Johannes Berg
parent 0f5ffd24fb
commit e76d67f035
1 changed files with 43 additions and 55 deletions
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98
net/mac80211/mesh_plink.c
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@ -655,6 +655,39 @@ u32 mesh_plink_block(struct sta_info *sta)
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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 @@ void mesh_rx_plink_frame(struct ieee80211_sub_if_data *sdata,
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: