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authorNathan Errera <nathan.errera@intel.com>2020-05-28 21:22:38 +0200
committerJohannes Berg <johannes.berg@intel.com>2020-05-31 11:27:24 +0200
commit093a48d2aa4b74db3134b61d7b7a061dbe79177b (patch)
tree94bb74bf6060ca004bc929d78f9b440dbde02625 /include
parent07c12d618f06c8876fe12a53217d92b32d7baf07 (diff)
cfg80211: support bigger kek/kck key length
With some newer AKMs, the KCK and KEK are bigger, so allow that if the driver advertises support for it. In addition, add a new attribute for the AKM so we can use it for offloaded rekeying. Signed-off-by: Nathan Errera <nathan.errera@intel.com> [reword commit message] Link: https://lore.kernel.org/r/20200528212237.5eb58b00a5d1.I61b09d77c4f382e8d58a05dcca78096e99a6bc15@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/net/cfg80211.h12
-rw-r--r--include/uapi/linux/nl80211.h4
2 files changed, 13 insertions, 3 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 95b55eea2afb..b58ad1a3f695 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -2936,12 +2936,17 @@ struct cfg80211_wowlan_wakeup {
/**
* struct cfg80211_gtk_rekey_data - rekey data
- * @kek: key encryption key (NL80211_KEK_LEN bytes)
- * @kck: key confirmation key (NL80211_KCK_LEN bytes)
+ * @kek: key encryption key (@kek_len bytes)
+ * @kck: key confirmation key (@kck_len bytes)
* @replay_ctr: replay counter (NL80211_REPLAY_CTR_LEN bytes)
+ * @kek_len: length of kek
+ * @kck_len length of kck
+ * @akm: akm (oui, id)
*/
struct cfg80211_gtk_rekey_data {
const u8 *kek, *kck, *replay_ctr;
+ u32 akm;
+ u8 kek_len, kck_len;
};
/**
@@ -4166,9 +4171,10 @@ struct cfg80211_ops {
* beaconing mode (AP, IBSS, Mesh, ...).
* @WIPHY_FLAG_HAS_STATIC_WEP: The device supports static WEP key installation
* before connection.
+ * @WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK: The device supports bigger kek and kck keys
*/
enum wiphy_flags {
- /* use hole at 0 */
+ WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK = BIT(0),
/* use hole at 1 */
/* use hole at 2 */
WIPHY_FLAG_NETNS_OK = BIT(3),
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 5b350d032fa3..dad8c8f8581f 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -5396,6 +5396,8 @@ enum plink_actions {
#define NL80211_KCK_LEN 16
#define NL80211_KEK_LEN 16
+#define NL80211_KCK_EXT_LEN 24
+#define NL80211_KEK_EXT_LEN 32
#define NL80211_REPLAY_CTR_LEN 8
/**
@@ -5404,6 +5406,7 @@ enum plink_actions {
* @NL80211_REKEY_DATA_KEK: key encryption key (binary)
* @NL80211_REKEY_DATA_KCK: key confirmation key (binary)
* @NL80211_REKEY_DATA_REPLAY_CTR: replay counter (binary)
+ * @NL80211_REKEY_DATA_AKM: AKM data (OUI, suite type)
* @NUM_NL80211_REKEY_DATA: number of rekey attributes (internal)
* @MAX_NL80211_REKEY_DATA: highest rekey attribute (internal)
*/
@@ -5412,6 +5415,7 @@ enum nl80211_rekey_data {
NL80211_REKEY_DATA_KEK,
NL80211_REKEY_DATA_KCK,
NL80211_REKEY_DATA_REPLAY_CTR,
+ NL80211_REKEY_DATA_AKM,
/* keep last */
NUM_NL80211_REKEY_DATA,