nl80211: Let userspace drive the peer link management states.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 27 insertions, 32 deletions

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 18c2555..51f7757 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -734,15 +734,27 @@ static void sta_apply_parameters(struct ieee80211_local *local,
 						  params->ht_capa,
 						  &sta->sta.ht_cap);
 
-	if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
-		switch (params->plink_action) {
-		case PLINK_ACTION_OPEN:
-			mesh_plink_open(sta);
-			break;
-		case PLINK_ACTION_BLOCK:
-			mesh_plink_block(sta);
-			break;
-		}
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
+			switch (params->plink_state) {
+			case PLINK_LISTEN:
+			case PLINK_ESTAB:
+			case PLINK_BLOCKED:
+				sta->plink_state = params->plink_state;
+				break;
+			default:
+				/*  nothing  */
+				break;
+			}
+		else
+			switch (params->plink_action) {
+			case PLINK_ACTION_OPEN:
+				mesh_plink_open(sta);
+				break;
+			case PLINK_ACTION_BLOCK:
+				mesh_plink_block(sta);
+				break;
+			}
 	}
 }
 
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index af1a7f8..f00b4dc 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -174,29 +174,6 @@ struct sta_ampdu_mlme {
 
 
 /**
- * enum plink_state - state of a mesh peer link finite state machine
- *
- * @PLINK_LISTEN: initial state, considered the implicit state of non existant
- * 	mesh peer links
- * @PLINK_OPN_SNT: mesh plink open frame has been sent to this mesh peer
- * @PLINK_OPN_RCVD: mesh plink open frame has been received from this mesh peer
- * @PLINK_CNF_RCVD: mesh plink confirm frame has been received from this mesh
- * 	peer
- * @PLINK_ESTAB: mesh peer link is established
- * @PLINK_HOLDING: mesh peer link is being closed or cancelled
- * @PLINK_BLOCKED: all frames transmitted from this mesh plink are discarded
- */
-enum plink_state {
-	PLINK_LISTEN,
-	PLINK_OPN_SNT,
-	PLINK_OPN_RCVD,
-	PLINK_CNF_RCVD,
-	PLINK_ESTAB,
-	PLINK_HOLDING,
-	PLINK_BLOCKED
-};
-
-/**
  * struct sta_info - STA information
  *
  * This structure collects information about a station that
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 64efc2d..f698c1d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -174,6 +174,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
 	[NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
 	[NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
+	[NL80211_ATTR_STA_PLINK_STATE] = { .type = NLA_U8 },
 };
 
 /* policy for the key attributes */
@@ -2247,6 +2248,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 	memset(&params, 0, sizeof(params));
 
 	params.listen_interval = -1;
+	params.plink_state = PLINK_INVALID;
 
 	if (info->attrs[NL80211_ATTR_STA_AID])
 		return -EINVAL;
@@ -2278,6 +2280,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
 		params.plink_action =
 		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]);
 
+	if (info->attrs[NL80211_ATTR_STA_PLINK_STATE])
+		params.plink_state =
+		    nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_STATE]);
+
 	err = get_vlan(info, rdev, &params.vlan);
 	if (err)
 		goto out;