nl80211: PMKSA caching support

This is an interface to set, delete and flush PMKIDs through nl80211.
Main users would be fullmac devices which firmwares are capable of
generating the RSN IEs for the re-association requests, e.g. iwmc3200wifi.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

2 files changed, 13 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,