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cfg80211: support 4-way handshake offloading for 802.1X

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Add API for setting the PMK to the driver. For FT support, allow
setting also the PMK-R0 Name.

This can be used by drivers that support 4-Way handshake offload
while IEEE802.1X authentication is managed by upper layers.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
[arend.vanspriel@broadcom.com: add WANT_1X_4WAY_HS attribute]
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
[reword NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X docs a bit to
say that the device may require it]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Avraham Stern
2017-06-09 13:08:43 +01:00
committed by Johannes Berg
parent 91b5ab6289
commit 3a00df5707
7 changed files with 268 additions and 1 deletions
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32
include/net/cfg80211.h
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@@ -2112,6 +2112,8 @@ struct cfg80211_bss_selection {
* @fils_erp_rrk: ERP re-authentication Root Key (rRK) used to derive additional
* keys in FILS or %NULL if not specified.
* @fils_erp_rrk_len: Length of @fils_erp_rrk in octets.
* @want_1x: indicates user-space supports and wants to use 802.1X driver
* offload of 4-way handshake.
*/
struct cfg80211_connect_params {
struct ieee80211_channel *channel;
@@ -2144,6 +2146,7 @@ struct cfg80211_connect_params {
u16 fils_erp_next_seq_num;
const u8 *fils_erp_rrk;
size_t fils_erp_rrk_len;
bool want_1x;
};
/**
@@ -2565,6 +2568,23 @@ struct cfg80211_nan_func {
u64 cookie;
};
/**
* struct cfg80211_pmk_conf - PMK configuration
*
* @aa: authenticator address
* @pmk_len: PMK length in bytes.
* @pmk: the PMK material
* @pmk_r0_name: PMK-R0 Name. NULL if not applicable (i.e., the PMK
* is not PMK-R0). When pmk_r0_name is not NULL, the pmk field
* holds PMK-R0.
*/
struct cfg80211_pmk_conf {
const u8 *aa;
u8 pmk_len;
const u8 *pmk;
const u8 *pmk_r0_name;
};
/**
* struct cfg80211_ops - backend description for wireless configuration
*
@@ -2881,6 +2901,13 @@ struct cfg80211_nan_func {
* All other parameters must be ignored.
*
* @set_multicast_to_unicast: configure multicast to unicast conversion for BSS
*
* @set_pmk: configure the PMK to be used for offloaded 802.1X 4-Way handshake.
* If not deleted through @del_pmk the PMK remains valid until disconnect
* upon which the driver should clear it.
* (invoked with the wireless_dev mutex held)
* @del_pmk: delete the previously configured PMK for the given authenticator.
* (invoked with the wireless_dev mutex held)
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@@ -3169,6 +3196,11 @@ struct cfg80211_ops {
int (*set_multicast_to_unicast)(struct wiphy *wiphy,
struct net_device *dev,
const bool enabled);
int (*set_pmk)(struct wiphy *wiphy, struct net_device *dev,
const struct cfg80211_pmk_conf *conf);
int (*del_pmk)(struct wiphy *wiphy, struct net_device *dev,
const u8 *aa);
};
/*