3 files changed, 41 insertions, 0 deletions

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index afa8e0ac27a7..d9724a28c0c2 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1266,6 +1266,8 @@ enum ieee80211_sa_query_action {
 
 #define WLAN_MAX_KEY_LEN                32
 
+#define WLAN_PMKID_LEN                  16
+
 /**
  * ieee80211_get_qos_ctl - get pointer to qos control bytes
  * @hdr: the frame
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 45db17f81aa3..da8ea2e19273 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -349,6 +349,10 @@ enum nl80211_commands {
         NL80211_CMD_GET_SURVEY,
         NL80211_CMD_NEW_SURVEY_RESULTS,
 
+        NL80211_CMD_SET_PMKSA,
+        NL80211_CMD_DEL_PMKSA,
+        NL80211_CMD_FLUSH_PMKSA,
+
         /* add new commands above here */
 
         /* used to define NL80211_CMD_MAX below */
@@ -598,6 +602,10 @@ enum nl80211_commands {
  *      the survey response for %NL80211_CMD_GET_SURVEY, nested attribute
  *      containing info as possible, see &enum survey_info.
  *
+ * @NL80211_ATTR_PMKID: PMK material for PMKSA caching.
+ * @NL80211_ATTR_MAX_NUM_PMKIDS: maximum number of PMKIDs a firmware can
+ *      cache, a wiphy attribute.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -732,6 +740,9 @@ enum nl80211_attrs {
 
         NL80211_ATTR_SURVEY_INFO,
 
+        NL80211_ATTR_PMKID,
+        NL80211_ATTR_MAX_NUM_PMKIDS,
+
         /* add attributes here, update the policy in nl80211.c */
 
         __NL80211_ATTR_AFTER_LAST,
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index a6492e9bca97..0884b9a0f778 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -871,6 +871,19 @@ struct cfg80211_bitrate_mask {
         u32 fixed;   /* fixed bitrate, 0 == not fixed */
         u32 maxrate; /* in kbps, 0 == no limit */
 };
+/**
+ * struct cfg80211_pmksa - PMK Security Association
+ *
+ * This structure is passed to the set/del_pmksa() method for PMKSA
+ * caching.
+ *
+ * @bssid: The AP's BSSID.
+ * @pmkid: The PMK material itself.
+ */
+struct cfg80211_pmksa {
+        u8 *bssid;
+        u8 *pmkid;
+};
 
 /**
  * struct cfg80211_ops - backend description for wireless configuration
@@ -976,6 +989,13 @@ struct cfg80211_bitrate_mask {
  * @dump_survey: get site survey information.
  *
  * @testmode_cmd: run a test mode command
+ *
+ * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
+ *      devices running firmwares capable of generating the (re) association
+ *      RSN IE. It allows for faster roaming between WPA2 BSSIDs.
+ * @del_pmksa: Delete a cached PMKID.
+ * @flush_pmksa: Flush all cached PMKIDs.
+ *
  */
 struct cfg80211_ops {
         int     (*suspend)(struct wiphy *wiphy);
@@ -1097,6 +1117,12 @@ struct cfg80211_ops {
         int     (*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
                         int idx, struct survey_info *info);
 
+        int     (*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+                             struct cfg80211_pmksa *pmksa);
+        int     (*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
+                             struct cfg80211_pmksa *pmksa);
+        int     (*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);
+
         /* some temporary stuff to finish wext */
         int     (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
                                   bool enabled, int timeout);
@@ -1195,6 +1221,8 @@ struct wiphy {
         char fw_version[ETHTOOL_BUSINFO_LEN];
         u32 hw_version;
 
+        u8 max_num_pmkids;
+
         /* If multiple wiphys are registered and you're handed e.g.
          * a regular netdev with assigned ieee80211_ptr, you won't
          * know whether it points to a wiphy your driver has registered