mwifiex: add AP event handling framework

Added logic to handle AP event that are generated
by the firmware. As MLME/SME is implemented in the
firmware, events such as station association and
deauthentication, must be sent to userspace (hostapd)
for creating and deleting station database.

Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Yogesh Powar <yogeshp@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 50 insertions, 1 deletions

diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c
index f6bbb9307f86..4ace5a3dcd23 100644
--- a/drivers/net/wireless/mwifiex/sta_event.c
+++ b/drivers/net/wireless/mwifiex/sta_event.c
@@ -184,8 +184,10 @@ mwifiex_reset_connect_state(struct mwifiex_private *priv)
 int mwifiex_process_sta_event(struct mwifiex_private *priv)
 {
         struct mwifiex_adapter *adapter = priv->adapter;
-        int ret = 0;
+        int len, ret = 0;
         u32 eventcause = adapter->event_cause;
+        struct station_info sinfo;
+        struct mwifiex_assoc_event *event;
 
         switch (eventcause) {
         case EVENT_DUMMY_HOST_WAKEUP_SIGNAL:
@@ -402,6 +404,53 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv)
         case EVENT_HOSTWAKE_STAIE:
                 dev_dbg(adapter->dev, "event: HOSTWAKE_STAIE %d\n", eventcause);
                 break;
+
+        case EVENT_UAP_STA_ASSOC:
+                skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER);
+                memset(&sinfo, 0, sizeof(sinfo));
+                event = (struct mwifiex_assoc_event *)adapter->event_skb->data;
+                if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) {
+                        len = -1;
+
+                        if (ieee80211_is_assoc_req(event->frame_control))
+                                len = 0;
+                        else if (ieee80211_is_reassoc_req(event->frame_control))
+                                /* There will be ETH_ALEN bytes of
+                                 * current_ap_addr before the re-assoc ies.
+                                 */
+                                len = ETH_ALEN;
+
+                        if (len != -1) {
+                                sinfo.filled = STATION_INFO_ASSOC_REQ_IES;
+                                sinfo.assoc_req_ies = (u8 *)&event->data[len];
+                                len = (u8 *)sinfo.assoc_req_ies -
+                                      (u8 *)&event->frame_control;
+                                sinfo.assoc_req_ies_len =
+                                        le16_to_cpu(event->len) - (u16)len;
+                        }
+                }
+                cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo,
+                                 GFP_KERNEL);
+                break;
+        case EVENT_UAP_STA_DEAUTH:
+                skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER);
+                cfg80211_del_sta(priv->netdev, adapter->event_skb->data,
+                                 GFP_KERNEL);
+                break;
+        case EVENT_UAP_BSS_IDLE:
+                priv->media_connected = false;
+                break;
+        case EVENT_UAP_BSS_ACTIVE:
+                priv->media_connected = true;
+                break;
+        case EVENT_UAP_BSS_START:
+                dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+                memcpy(priv->netdev->dev_addr, adapter->event_body+2, ETH_ALEN);
+                break;
+        case EVENT_UAP_MIC_COUNTERMEASURES:
+                /* For future development */
+                dev_dbg(adapter->dev, "AP EVENT: event id: %#x\n", eventcause);
+                break;
         default:
                 dev_dbg(adapter->dev, "event: unknown event id: %#x\n",
                         eventcause);