cfg80211/nl80211: introduce key handling
This introduces key handling to cfg80211/nl80211. Default
and group keys can be added, changed and removed; sequence
counters for each key can be retrieved.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index d30960e..3db7dfa 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -49,6 +49,26 @@
struct ieee80211_radiotap_iterator *iterator);
+ /**
+ * struct key_params - key information
+ *
+ * Information about a key
+ *
+ * @key: key material
+ * @key_len: length of key material
+ * @cipher: cipher suite selector
+ * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
+ * with the get_key() callback, must be in little endian,
+ * length given by @seq_len.
+ */
+struct key_params {
+ u8 *key;
+ u8 *seq;
+ int key_len;
+ int seq_len;
+ u32 cipher;
+};
+
/* from net/wireless.h */
struct wiphy;
@@ -71,6 +91,18 @@
*
* @change_virtual_intf: change type of virtual interface
*
+ * @add_key: add a key with the given parameters. @mac_addr will be %NULL
+ * when adding a group key.
+ *
+ * @get_key: get information about the key with the given parameters.
+ * @mac_addr will be %NULL when requesting information for a group
+ * key. All pointers given to the @callback function need not be valid
+ * after it returns.
+ *
+ * @del_key: remove a key given the @mac_addr (%NULL for a group key)
+ * and @key_index
+ *
+ * @set_default_key: set the default key on an interface
*/
struct cfg80211_ops {
int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
@@ -78,6 +110,18 @@
int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
enum nl80211_iftype type);
+
+ int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, u8 *mac_addr,
+ struct key_params *params);
+ int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, u8 *mac_addr, void *cookie,
+ void (*callback)(void *cookie, struct key_params*));
+ int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
+ u8 key_index, u8 *mac_addr);
+ int (*set_default_key)(struct wiphy *wiphy,
+ struct net_device *netdev,
+ u8 key_index);
};
#endif /* __NET_CFG80211_H */