wifi: mac80211: Support link removal using Reconfiguration ML element

[carl9170fw.git] / include / linux / ieee80211.h

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index b68fbaeac23594c6bc58cdbe532312dd1c212a73..c27cb7ec229a31a17b00bad3d42d722ee6b4010e 100644 (file)
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -4412,9 +4412,6 @@ static inline bool for_each_element_completed(const struct element *element,
 #define IEEE80211_AP_INFO_TBTT_HDR_COUNT                       0xF0
 #define IEEE80211_TBTT_INFO_TYPE_TBTT                          0
 #define IEEE80211_TBTT_INFO_TYPE_MLD                           1
-#define IEEE80211_TBTT_INFO_OFFSET_BSSID_BSS_PARAM             9
-#define IEEE80211_TBTT_INFO_OFFSET_BSSID_SSSID_BSS_PARAM       13
-#define IEEE80211_TBTT_INFO_OFFSET_BSSID_SSSID_BSS_PARAM_MLD_PARAM     16
 
 #define IEEE80211_RNR_TBTT_PARAMS_OCT_RECOMMENDED              0x01
 #define IEEE80211_RNR_TBTT_PARAMS_SAME_SSID                    0x02
@@ -4822,6 +4819,39 @@ static inline bool ieee80211_mle_basic_sta_prof_size_ok(const u8 *data,
               fixed + prof->sta_info_len <= len;
 }
 
+#define IEEE80211_MLE_STA_RECONF_CONTROL_LINK_ID                       0x000f
+#define IEEE80211_MLE_STA_RECONF_CONTROL_COMPLETE_PROFILE              0x0010
+#define IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT          0x0020
+#define IEEE80211_MLE_STA_RECONF_CONTROL_DELETE_TIMER_PRESENT          0x0040
+
+/**
+ * ieee80211_mle_reconf_sta_prof_size_ok - validate reconfiguration multi-link
+ *     element sta profile size.
+ * @data: pointer to the sub element data
+ * @len: length of the containing sub element
+ */
+static inline bool ieee80211_mle_reconf_sta_prof_size_ok(const u8 *data,
+                                                        size_t len)
+{
+       const struct ieee80211_mle_per_sta_profile *prof = (const void *)data;
+       u16 control;
+       u8 fixed = sizeof(*prof);
+       u8 info_len = 1;
+
+       if (len < fixed)
+               return false;
+
+       control = le16_to_cpu(prof->control);
+
+       if (control & IEEE80211_MLE_STA_RECONF_CONTROL_STA_MAC_ADDR_PRESENT)
+               info_len += 6;
+       if (control & IEEE80211_MLE_STA_RECONF_CONTROL_DELETE_TIMER_PRESENT)
+               info_len += 2;
+
+       return prof->sta_info_len >= info_len &&
+              ((size_t)(fixed + prof->sta_info_len - 1) <= len);
+}
+
 #define for_each_mle_subelement(_elem, _data, _len)                    \
        if (ieee80211_mle_size_ok(_data, _len))                         \
                for_each_element(_elem,                                 \