qcacld-3.0: Remove obsolete STA support for SIOCSIWENCODE

At one time the predecessor to the current driver was managed via
wireless extensions, but now the driver is managed by cfg80211. The
STA implementation of SIOCSIWENCODE should no longer be used, so remove
it.

Change-Id: I3aa8ecd114b7be9bdef0efbac9b854cf6119f02b
CRs-Fixed: 2128587

core/hdd/src/wlan_hdd_wext.c

@@ -6207,196 +6207,6 @@ static int iw_get_nick(struct net_device *dev,
 	return ret;
 }
 
-/**
- * __iw_set_encode() - SIOCSIWENCODE ioctl handler
- * @dev: device upon which the ioctl was received
- * @info: ioctl request information
- * @wrqu: ioctl request data
- * @extra: ioctl extra data
- *
- * Return: 0 on success, non-zero on error
- */
-static int __iw_set_encode(struct net_device *dev, struct iw_request_info *info,
-			   union iwreq_data *wrqu, char *extra)
-{
-	struct hdd_adapter *adapter = WLAN_HDD_GET_PRIV_PTR(dev);
-	struct hdd_station_ctx *sta_ctx =
-		WLAN_HDD_GET_STATION_CTX_PTR(adapter);
-	struct hdd_wext_state *pWextState =
-		WLAN_HDD_GET_WEXT_STATE_PTR(adapter);
-	struct hdd_context *hdd_ctx;
-	struct iw_point *encoderq = &(wrqu->encoding);
-	uint32_t keyId;
-	uint8_t key_length;
-	eCsrEncryptionType encryptionType = eCSR_ENCRYPT_TYPE_NONE;
-	bool fKeyPresent = 0;
-	QDF_STATUS status = QDF_STATUS_SUCCESS;
-	int ret;
-
-	ENTER_DEV(dev);
-
-	hdd_ctx = WLAN_HDD_GET_CTX(adapter);
-	ret = wlan_hdd_validate_context(hdd_ctx);
-	if (0 != ret)
-		return ret;
-
-	ret = hdd_check_standard_wext_control(hdd_ctx, info);
-	if (0 != ret)
-		return ret;
-
-	keyId = encoderq->flags & IW_ENCODE_INDEX;
-
-	if (keyId) {
-		if (keyId > MAX_WEP_KEYS)
-			return -EINVAL;
-
-		fKeyPresent = 1;
-		keyId--;
-	} else {
-		fKeyPresent = 0;
-	}
-
-	if (wrqu->data.flags & IW_ENCODE_DISABLED) {
-		hdd_debug("****iwconfig wlan0 key off*****");
-		if (!fKeyPresent) {
-			qdf_mem_zero(pWextState->roamProfile.Keys.KeyLength,
-							CSR_MAX_NUM_KEY);
-		}
-		sta_ctx->conn_info.authType = eCSR_AUTH_TYPE_OPEN_SYSTEM;
-		sta_ctx->wpa_versions = 0;
-		pWextState->roamProfile.EncryptionType.encryptionType[0] =
-			eCSR_ENCRYPT_TYPE_NONE;
-		pWextState->roamProfile.mcEncryptionType.encryptionType[0] =
-			eCSR_ENCRYPT_TYPE_NONE;
-
-		sta_ctx->conn_info.ucEncryptionType = eCSR_ENCRYPT_TYPE_NONE;
-		sta_ctx->conn_info.mcEncryptionType = eCSR_ENCRYPT_TYPE_NONE;
-
-		if (eConnectionState_Associated ==
-		    sta_ctx->conn_info.connState) {
-			INIT_COMPLETION(adapter->disconnect_comp_var);
-			status =
-				sme_roam_disconnect(WLAN_HDD_GET_HAL_CTX(adapter),
-						    adapter->sessionId,
-						    eCSR_DISCONNECT_REASON_UNSPECIFIED);
-			if (QDF_STATUS_SUCCESS == status) {
-				unsigned long rc;
-
-				rc = wait_for_completion_timeout(&adapter->
-								 disconnect_comp_var,
-								 msecs_to_jiffies
-									 (WLAN_WAIT_TIME_DISCONNECT));
-				if (!rc)
-					hdd_err("disconnect_comp_var failed");
-			}
-		}
-
-		return status;
-
-	}
-
-	if (wrqu->data.flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
-		hdd_debug("iwconfig wlan0 key on");
-
-		sta_ctx->conn_info.authType =
-			(encoderq->flags & IW_ENCODE_RESTRICTED) ?
-				eCSR_AUTH_TYPE_SHARED_KEY :
-			eCSR_AUTH_TYPE_OPEN_SYSTEM;
-
-	}
-
-	if (wrqu->data.length > 0) {
-		hdd_debug("wrqu->data.length : %d", wrqu->data.length);
-
-		key_length = wrqu->data.length;
-
-		/* IW_ENCODING_TOKEN_MAX is the value that is set
-		 * for wrqu->data.length by iwconfig.c
-		 * when 'iwconfig wlan0 key on' is issued.
-		 */
-
-		if (5 == key_length) {
-			hdd_debug("Call with WEP40,key_len=%d",
-			       key_length);
-
-			if ((IW_AUTH_KEY_MGMT_802_1X == pWextState->authKeyMgmt)
-			    && (eCSR_AUTH_TYPE_OPEN_SYSTEM ==
-				sta_ctx->conn_info.authType)) {
-				encryptionType = eCSR_ENCRYPT_TYPE_WEP40;
-			} else {
-				encryptionType =
-					eCSR_ENCRYPT_TYPE_WEP40_STATICKEY;
-			}
-		} else if (13 == key_length) {
-			hdd_debug("Call with WEP104,key_len:%d",
-			       key_length);
-
-			if ((IW_AUTH_KEY_MGMT_802_1X == pWextState->authKeyMgmt)
-			    && (eCSR_AUTH_TYPE_OPEN_SYSTEM ==
-				sta_ctx->conn_info.authType)) {
-				encryptionType = eCSR_ENCRYPT_TYPE_WEP104;
-			} else {
-				encryptionType =
-					eCSR_ENCRYPT_TYPE_WEP104_STATICKEY;
-			}
-		} else {
-			hdd_err("Invalid WEP key length :%d", key_length);
-			return -EINVAL;
-		}
-
-		sta_ctx->conn_info.ucEncryptionType = encryptionType;
-		sta_ctx->conn_info.mcEncryptionType = encryptionType;
-		pWextState->roamProfile.EncryptionType.numEntries = 1;
-		pWextState->roamProfile.EncryptionType.encryptionType[0] =
-			encryptionType;
-		pWextState->roamProfile.mcEncryptionType.numEntries = 1;
-		pWextState->roamProfile.mcEncryptionType.encryptionType[0] =
-			encryptionType;
-
-		if ((eConnectionState_NotConnected ==
-		     sta_ctx->conn_info.connState)
-		    &&
-		    ((eCSR_AUTH_TYPE_OPEN_SYSTEM ==
-		      sta_ctx->conn_info.authType)
-		     || (eCSR_AUTH_TYPE_SHARED_KEY ==
-			 sta_ctx->conn_info.authType))) {
-
-			qdf_mem_copy(&pWextState->roamProfile.Keys.
-				     KeyMaterial[keyId][0], extra, key_length);
-
-			pWextState->roamProfile.Keys.KeyLength[keyId] =
-				(uint8_t) key_length;
-			pWextState->roamProfile.Keys.defaultIndex =
-				(uint8_t) keyId;
-
-			return status;
-		}
-	}
-
-	return 0;
-}
-
-/**
- * iw_set_encode() - SSR wrapper for __iw_set_encode()
- * @dev: pointer to net_device
- * @info: pointer to iw_request_info
- * @wrqu: pointer to iwreq_data
- * @extra: pointer to extra ioctl payload
- *
- * Return: 0 on success, error number otherwise
- */
-static int iw_set_encode(struct net_device *dev, struct iw_request_info *info,
-			 union iwreq_data *wrqu, char *extra)
-{
-	int ret;
-
-	cds_ssr_protect(__func__);
-	ret = __iw_set_encode(dev, info, wrqu, extra);
-	cds_ssr_unprotect(__func__);
-
-	return ret;
-}
-
 /**
  * __iw_set_retry() - SIOCSIWRETRY ioctl handler
  * @dev: device upon which the ioctl was received
@@ -12415,7 +12225,7 @@ static const iw_handler we_handler[] = {
 	(iw_handler) iw_get_tx_power,   /* SIOCGIWTXPOW */
 	(iw_handler) iw_set_retry,      /* SIOCSIWRETRY */
 	(iw_handler) iw_get_retry,      /* SIOCGIWRETRY */
-	(iw_handler) iw_set_encode,     /* SIOCSIWENCODE */
+	(iw_handler) NULL,      /* SIOCSIWENCODE */
 	(iw_handler) NULL,      /* SIOCGIWENCODE */
 	(iw_handler) NULL,      /* SIOCSIWPOWER */
 	(iw_handler) NULL,      /* SIOCGIWPOWER */