From d7f03698271d71e510a0650c22c0155711ca9d0f Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Tue, 15 Apr 2014 19:44:04 +0200 Subject: [PATCH] staging: rtl8723au: rtw_get_cipher_info(): Convert to use cfg80211_* API Use cfg80211_find_ie() and cfg80211_find_vendor_ie() rather than own hacks. Signed-off-by: Jes Sorensen Signed-off-by: Greg Kroah-Hartman --- .../staging/rtl8723au/core/rtw_ieee80211.c | 26 +++++++++++-------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/staging/rtl8723au/core/rtw_ieee80211.c b/drivers/staging/rtl8723au/core/rtw_ieee80211.c index 88631a713a5d..f3904ec93917 100644 --- a/drivers/staging/rtl8723au/core/rtw_ieee80211.c +++ b/drivers/staging/rtl8723au/core/rtw_ieee80211.c @@ -1276,19 +1276,24 @@ int ieee80211_is_empty_essid23a(const char *essid, int essid_len) static int rtw_get_cipher_info(struct wlan_network *pnetwork) { - u32 wpa_ielen; const u8 *pbuf; int group_cipher = 0, pairwise_cipher = 0, is8021x = 0; int ret = _FAIL; - int r; + int r, offset, plen; + char *pie; - pbuf = rtw_get_wpa_ie23a(&pnetwork->network.IEs[12], &wpa_ielen, - pnetwork->network.IELength - 12); + offset = offsetof(struct ieee80211_mgmt, u.beacon.variable) - + offsetof(struct ieee80211_mgmt, u); + pie = &pnetwork->network.IEs[offset]; + plen = pnetwork->network.IELength - offset; - if (pbuf && (wpa_ielen > 0)) { + pbuf = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, + WLAN_OUI_TYPE_MICROSOFT_WPA, pie, plen); + + if (pbuf && pbuf[1] > 0) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, - ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen)); - r = rtw_parse_wpa_ie23a(pbuf, wpa_ielen + 2, &group_cipher, + ("rtw_get_cipher_info: wpa_ielen: %d", pbuf[1])); + r = rtw_parse_wpa_ie23a(pbuf, pbuf[1] + 2, &group_cipher, &pairwise_cipher, &is8021x); if (r == _SUCCESS) { pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher; @@ -1302,13 +1307,12 @@ static int rtw_get_cipher_info(struct wlan_network *pnetwork) ret = _SUCCESS; } } else { - pbuf = rtw_get_wpa2_ie23a(&pnetwork->network.IEs[12], &wpa_ielen, - pnetwork->network.IELength - 12); + pbuf = cfg80211_find_ie(WLAN_EID_RSN, pie, plen); - if (pbuf && (wpa_ielen > 0)) { + if (pbuf && pbuf[1] > 0) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n")); - r = rtw_parse_wpa2_ie23a(pbuf, wpa_ielen + 2, + r = rtw_parse_wpa2_ie23a(pbuf, pbuf[1] + 2, &group_cipher, &pairwise_cipher, &is8021x); if (r == _SUCCESS) { -- 2.30.2