From f96355b8f001a8142d46e69d828d4ab3ef694f91 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Tue, 15 Apr 2014 19:43:57 +0200 Subject: [PATCH] staging: rtl8723au: OnBeacon23a(): Use ieee80211_mgmt to calculate ie location Signed-off-by: Jes Sorensen Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8723au/core/rtw_mlme_ext.c | 30 ++++++++++--------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c index fc0c938a8fce..f810d8f8e384 100644 --- a/drivers/staging/rtl8723au/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8723au/core/rtw_mlme_ext.c @@ -726,23 +726,23 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) { int cam_idx; struct sta_info *psta; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; + struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; struct mlme_priv *pmlmepriv = &padapter->mlmepriv; struct sta_priv *pstapriv = &padapter->stapriv; struct sk_buff *skb = precv_frame->pkt; struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) skb->data; u8 *pframe = skb->data; - uint len = skb->len; + int pkt_len = skb->len; struct wlan_bssid_ex *pbss; int ret = _SUCCESS; - u8 *p = NULL; + u8 *p, *pie; + int pie_len; u32 ielen = 0; - p = rtw_get_ie23a(pframe + sizeof(struct ieee80211_hdr_3addr) + - _BEACON_IE_OFFSET_, WLAN_EID_EXT_SUPP_RATES, &ielen, - len - sizeof(struct ieee80211_hdr_3addr) - - _BEACON_IE_OFFSET_); + pie = mgmt->u.beacon.variable; + pie_len = pkt_len - offsetof(struct ieee80211_mgmt, u.beacon.variable); + p = rtw_get_ie23a(pie, WLAN_EID_EXT_SUPP_RATES, &ielen, pie_len); if ((p != NULL) && (ielen > 0)) { if ((*(p + 1 + ielen) == 0x2D) && (*(p + 2 + ielen) != 0x2D)) { /* Invalid value 0x2D is detected in Extended Supported @@ -780,10 +780,10 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) } /* check the vendor of the assoc AP */ - pmlmeinfo->assoc_AP_vendor = check_assoc_AP23a(pframe + sizeof(struct ieee80211_hdr_3addr), len-sizeof(struct ieee80211_hdr_3addr)); + pmlmeinfo->assoc_AP_vendor = check_assoc_AP23a(pframe + sizeof(struct ieee80211_hdr_3addr), pkt_len-sizeof(struct ieee80211_hdr_3addr)); /* update TSF Value */ - update_TSF23a(pmlmeext, pframe, len); + update_TSF23a(pmlmeext, pframe, pkt_len); /* start auth */ start_clnt_auth23a(padapter); @@ -796,7 +796,7 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) psta = rtw_get_stainfo23a(pstapriv, mgmt->sa); if (psta) { ret = rtw_check_bcn_info23a(padapter, pframe, - len); + pkt_len); if (!ret) { DBG_8723A_LEVEL(_drv_always_, "ap has changed, " @@ -810,7 +810,7 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) if ((sta_rx_pkts(psta) & 0xf) == 0) { /* DBG_8723A("update_bcn_info\n"); */ update_beacon23a_info(padapter, pframe, - len, psta); + pkt_len, psta); } } } else if ((pmlmeinfo->state&0x03) == WIFI_FW_ADHOC_STATE) { @@ -822,7 +822,7 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) if ((sta_rx_pkts(psta) & 0xf) == 0) { /* DBG_8723A("update_bcn_info\n"); */ update_beacon23a_info(padapter, pframe, - len, psta); + pkt_len, psta); } } else { /* allocate a new CAM entry for IBSS station */ @@ -831,13 +831,15 @@ OnBeacon23a(struct rtw_adapter *padapter, struct recv_frame *precv_frame) goto _END_ONBEACON_; /* get supported rate */ - if (update_sta_support_rate23a(padapter, (pframe + sizeof(struct ieee80211_hdr_3addr) + _BEACON_IE_OFFSET_), (len - sizeof(struct ieee80211_hdr_3addr) - _BEACON_IE_OFFSET_), cam_idx) == _FAIL) { + if (update_sta_support_rate23a(padapter, pie, + pie_len, + cam_idx) == _FAIL) { pmlmeinfo->FW_sta_info[cam_idx].status = 0; goto _END_ONBEACON_; } /* update TSF Value */ - update_TSF23a(pmlmeext, pframe, len); + update_TSF23a(pmlmeext, pframe, pkt_len); /* report sta add event */ report_add_sta_event23a(padapter, mgmt->sa, -- 2.20.1