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cfg80211: Add KEK/nonces for FILS association frames

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The new nl80211 attributes can be used to provide KEK and nonces to
allow the driver to encrypt and decrypt FILS (Re)Association
Request/Response frames in station mode.

Signed-off-by: Jouni Malinen <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Jouni Malinen 2016-10-27 00:42:03 +03:00 • committed by Johannes Berg
commit 348bd45669
4 changed files with 32 additions and 0 deletions
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12
net/wireless/nl80211.c
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@ -414,6 +414,9 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_NAN_MASTER_PREF] = { .type = NLA_U8 },
[NL80211_ATTR_NAN_DUAL] = { .type = NLA_U8 },
[NL80211_ATTR_NAN_FUNC] = { .type = NLA_NESTED },
[NL80211_ATTR_FILS_KEK] = { .type = NLA_BINARY,
.len = FILS_MAX_KEK_LEN },
[NL80211_ATTR_FILS_NONCES] = { .len = 2 * FILS_NONCE_LEN },
};
/* policy for the key attributes */
@ -8033,6 +8036,15 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info)
req.flags |= ASSOC_REQ_USE_RRM;
}
if (info->attrs[NL80211_ATTR_FILS_KEK]) {
req.fils_kek = nla_data(info->attrs[NL80211_ATTR_FILS_KEK]);
req.fils_kek_len = nla_len(info->attrs[NL80211_ATTR_FILS_KEK]);
if (!info->attrs[NL80211_ATTR_FILS_NONCES])
return -EINVAL;
req.fils_nonces =
nla_data(info->attrs[NL80211_ATTR_FILS_NONCES]);
}
err = nl80211_crypto_settings(rdev, info, &req.crypto, 1);
if (!err) {
wdev_lock(dev->ieee80211_ptr);