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cfg80211: support bigger kek/kck key length

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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>
This commit is contained in:
Nathan Errera
2020-05-28 21:22:38 +02:00
committed by Johannes Berg
parent 07c12d618f
commit 093a48d2aa
3 changed files with 32 additions and 7 deletions
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4
include/uapi/linux/nl80211.h
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@@ -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,