mac80211: add generic cipher scheme support

[deliverable/linux.git] / include / net / mac80211.h

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7ceed99a05bc79218a841352a454a980df48741b..cca02b2f5c7e40093cfdf9134910c51cd7358c12 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1228,6 +1228,36 @@ struct ieee80211_key_conf {
        u8 key[0];
 };
 
+/**
+ * struct ieee80211_cipher_scheme - cipher scheme
+ *
+ * This structure contains a cipher scheme information defining
+ * the secure packet crypto handling.
+ *
+ * @cipher: a cipher suite selector
+ * @iftype: a cipher iftype bit mask indicating an allowed cipher usage
+ * @hdr_len: a length of a security header used the cipher
+ * @pn_len: a length of a packet number in the security header
+ * @pn_off: an offset of pn from the beginning of the security header
+ * @key_idx_off: an offset of key index byte in the security header
+ * @key_idx_mask: a bit mask of key_idx bits
+ * @key_idx_shift: a bit shift needed to get key_idx
+ *     key_idx value calculation:
+ *      (sec_header_base[key_idx_off] & key_idx_mask) >> key_idx_shift
+ * @mic_len: a mic length in bytes
+ */
+struct ieee80211_cipher_scheme {
+       u32 cipher;
+       u16 iftype;
+       u8 hdr_len;
+       u8 pn_len;
+       u8 pn_off;
+       u8 key_idx_off;
+       u8 key_idx_mask;
+       u8 key_idx_shift;
+       u8 mic_len;
+};
+
 /**
  * enum set_key_cmd - key command
  *
@@ -1636,6 +1666,10 @@ enum ieee80211_hw_flags {
  * @uapsd_max_sp_len: maximum number of total buffered frames the WMM AP may
  *     deliver to a WMM STA during any Service Period triggered by the WMM STA.
  *     Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct values.
+ *
+ * @n_cipher_schemes: a size of an array of cipher schemes definitions.
+ * @cipher_schemes: a pointer to an array of cipher scheme definitions
+ *     supported by HW.
  */
 struct ieee80211_hw {
        struct ieee80211_conf conf;
@@ -1663,6 +1697,8 @@ struct ieee80211_hw {
        netdev_features_t netdev_features;
        u8 uapsd_queues;
        u8 uapsd_max_sp_len;
+       u8 n_cipher_schemes;
+       const struct ieee80211_cipher_scheme *cipher_schemes;
 };
 
 /**