[PATCH v2 3/9] staging: r8188eu: use standard mechanisms for control frames

Martin Kaiser
2022-03-27T18:10:08Z

Use defines and macros from ieee80211.h to check for control frames and
to define control frame subtypes.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
---
drivers/staging/r8188eu/core/rtw_recv.c | 3 ++-
drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c | 3 ++-
drivers/staging/r8188eu/include/wifi.h | 21 ++++++-------------
3 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_recv.c b/drivers/staging/r8188eu/core/rtw_recv.c
index 5af715a08430..7735fbe6fa72 100644
--- a/drivers/staging/r8188eu/core/rtw_recv.c
+++ b/drivers/staging/r8188eu/core/rtw_recv.c
@@ -801,9 +801,10 @@ static int validate_recv_ctrl_frame(struct adapter *padapter,
struct rx_pkt_attrib *pattrib = &precv_frame->attrib;
struct sta_priv *pstapriv = &padapter->stapriv;
u8 *pframe = precv_frame->rx_data;
+ __le16 fc = *(__le16 *)pframe;
/* uint len = precv_frame->len; */

- if (GetFrameType(pframe) != WIFI_CTRL_TYPE)
+ if (!ieee80211_is_ctl(fc))
return _FAIL;

/* receive the frames that ra(a1) is my address */
diff --git a/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c b/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c
index 9bf7a9248026..7e50a42b6f75 100644
--- a/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c
+++ b/drivers/staging/r8188eu/hal/rtl8188e_rxdesc.c
@@ -113,12 +113,13 @@ void update_recvframe_phyinfo_88e(struct recv_frame *precvframe, struct phy_stat
struct hal_data_8188e *pHalData = &padapter->haldata;
struct phy_info *pPHYInfo = &pattrib->phy_info;
u8 *wlanhdr = precvframe->rx_data;
+ __le16 fc = *(__le16 *)wlanhdr;
struct odm_per_pkt_info pkt_info;
u8 *sa = NULL;
struct sta_priv *pstapriv;
struct sta_info *psta;

- pkt_info.bPacketMatchBSSID = ((!IsFrameTypeCtrl(wlanhdr)) &&
+ pkt_info.bPacketMatchBSSID = ((!ieee80211_is_ctl(fc)) &&
!pattrib->icv_err && !pattrib->crc_err &&
!memcmp(get_hdr_bssid(wlanhdr),
get_bssid(&padapter->mlmepriv), ETH_ALEN));
diff --git a/drivers/staging/r8188eu/include/wifi.h b/drivers/staging/r8188eu/include/wifi.h
index 299553351246..47b73fde2006 100644
--- a/drivers/staging/r8188eu/include/wifi.h
+++ b/drivers/staging/r8188eu/include/wifi.h
@@ -13,7 +13,6 @@
#define WLAN_SSID_MAXLEN 32

enum WIFI_FRAME_TYPE {
- WIFI_CTRL_TYPE = (BIT(2)),
WIFI_DATA_TYPE = (BIT(3)),
WIFI_QOS_DATA_TYPE = (BIT(7)|BIT(3)), /* QoS Data */
};
@@ -34,13 +33,12 @@ enum WIFI_FRAME_SUBTYPE {
WIFI_ACTION = (BIT(7) | BIT(6) | BIT(4) | IEEE80211_FTYPE_MGMT),

/* below is for control frame */
- WIFI_PSPOLL = (BIT(7) | BIT(5) | WIFI_CTRL_TYPE),
- WIFI_RTS = (BIT(7) | BIT(5) | BIT(4) | WIFI_CTRL_TYPE),
- WIFI_CTS = (BIT(7) | BIT(6) | WIFI_CTRL_TYPE),
- WIFI_ACK = (BIT(7) | BIT(6) | BIT(4) | WIFI_CTRL_TYPE),
- WIFI_CFEND = (BIT(7) | BIT(6) | BIT(5) | WIFI_CTRL_TYPE),
- WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) |
- WIFI_CTRL_TYPE),
+ WIFI_PSPOLL = (BIT(7) | BIT(5) | IEEE80211_FTYPE_CTL),
+ WIFI_RTS = (BIT(7) | BIT(5) | BIT(4) | IEEE80211_FTYPE_CTL),
+ WIFI_CTS = (BIT(7) | BIT(6) | IEEE80211_FTYPE_CTL),
+ WIFI_ACK = (BIT(7) | BIT(6) | BIT(4) | IEEE80211_FTYPE_CTL),
+ WIFI_CFEND = (BIT(7) | BIT(6) | BIT(5) | IEEE80211_FTYPE_CTL),
+ WIFI_CFEND_CFACK = (BIT(7) | BIT(6) | BIT(5) | BIT(4) | IEEE80211_FTYPE_CTL),

/* below is for data frame */
WIFI_DATA = (0 | WIFI_DATA_TYPE),
@@ -340,13 +338,6 @@ static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
return sa;
}

-static inline bool IsFrameTypeCtrl(unsigned char *pframe)
-{
- if (WIFI_CTRL_TYPE == GetFrameType(pframe))
- return true;
- else
- return false;
-}
/*-----------------------------------------------------------------------------
Below is for the security related definition
------------------------------------------------------------------------------*/
--
2.30.2