* Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
* Copyright (c) 2013 - 2014 Intel Mobile Communications GmbH
* Copyright (c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright (c) 2018 - 2022 Intel Corporation
+ * Copyright (c) 2018 - 2023 Intel Corporation
*/
#ifndef __LINUX_IEEE80211_H
return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
}
-/**
- * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
- * @fc: frame control field in little-endian byteorder
- */
-static inline bool ieee80211_is_bufferable_mmpdu(__le16 fc)
-{
- /* IEEE 802.11-2012, definition of "bufferable management frame";
- * note that this ignores the IBSS special case. */
- return ieee80211_is_mgmt(fc) &&
- (ieee80211_is_action(fc) ||
- ieee80211_is_disassoc(fc) ||
- ieee80211_is_deauth(fc));
-}
-
/**
* ieee80211_is_first_frag - check if IEEE80211_SCTL_FRAG is not set
* @seq_ctrl: frame sequence control bytes in little-endian byteorder
WLAN_UNPROTECTED_WNM_ACTION_TIMING_MEASUREMENT_RESPONSE = 1,
};
-/* Public action codes */
-enum ieee80211_public_actioncode {
- WLAN_PUBLIC_ACTION_FTM_RESPONSE = 33,
-};
-
/* Security key length */
enum ieee80211_key_len {
WLAN_KEY_LEN_WEP40 = 5,
WLAN_PUB_ACTION_NETWORK_CHANNEL_CONTROL = 30,
WLAN_PUB_ACTION_WHITE_SPACE_MAP_ANN = 31,
WLAN_PUB_ACTION_FTM_REQUEST = 32,
- WLAN_PUB_ACTION_FTM = 33,
+ WLAN_PUB_ACTION_FTM_RESPONSE = 33,
WLAN_PUB_ACTION_FILS_DISCOVERY = 34,
};
return hdr->addr2;
}
+/**
+ * ieee80211_is_bufferable_mmpdu - check if frame is bufferable MMPDU
+ * @skb: the skb to check, starting with the 802.11 header
+ */
+static inline bool ieee80211_is_bufferable_mmpdu(struct ieee80211_hdr *hdr, size_t len)
+{
+ struct ieee80211_mgmt *mgmt = (void *)hdr;
+ __le16 fc = mgmt->frame_control;
+
+ /*
+ * IEEE 802.11 REVme D2.0 definition of bufferable MMPDU;
+ * note that this ignores the IBSS special case.
+ */
+ if (!ieee80211_is_mgmt(fc))
+ return false;
+
+ if (ieee80211_is_disassoc(fc) || ieee80211_is_deauth(fc))
+ return true;
+
+ if (!ieee80211_is_action(fc))
+ return false;
+
+ if (len < offsetofend(typeof(*mgmt), u.action.u.ftm.action_code))
+ return true;
+
+ /* action frame - additionally check for non-bufferable FTM */
+
+ if (mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
+ mgmt->u.action.category != WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION)
+ return true;
+
+ if (mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_REQUEST ||
+ mgmt->u.action.u.ftm.action_code == WLAN_PUB_ACTION_FTM_RESPONSE)
+ return false;
+
+ return true;
+}
+
/**
* ieee80211_get_DA - get pointer to DA
* @hdr: the frame
return false;
if (mgmt->u.action.u.ftm.action_code ==
- WLAN_PUBLIC_ACTION_FTM_RESPONSE &&
+ WLAN_PUB_ACTION_FTM_RESPONSE &&
len >= offsetofend(typeof(*mgmt), u.action.u.ftm))
return true;