iwmc3200wifi: Implement cfg80211 PMKSA API

We need to implement the PMKSA API for proper WPA2 pre-auth and fast
re-association. Our fullmac device generates all (re-)assoc IEs, and thus it
needs the right PMKIDs. With this implementation we now get them from
wpa_supplicant.

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

1 files changed, 22 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwmc3200wifi/commands.c b/drivers/net/wireless/iwmc3200wifi/commands.c
index 46ca7c58f5a..bd0630755b3 100644
--- a/drivers/net/wireless/iwmc3200wifi/commands.c
+++ b/drivers/net/wireless/iwmc3200wifi/commands.c
@@ -960,3 +960,25 @@ int iwm_send_umac_stop_resume_tx(struct iwm_priv *iwm,
                                  sizeof(struct iwm_umac_cmd_stop_resume_tx));
 
 }
+
+int iwm_send_pmkid_update(struct iwm_priv *iwm,
+                          struct cfg80211_pmksa *pmksa, u32 command)
+{
+        struct iwm_umac_pmkid_update update;
+        int ret;
+
+        memset(&update, 0, sizeof(struct iwm_umac_pmkid_update));
+
+        update.command = cpu_to_le32(command);
+        memcpy(&update.bssid, pmksa->bssid, ETH_ALEN);
+        memcpy(&update.pmkid, pmksa->pmkid, WLAN_PMKID_LEN);
+
+        ret = iwm_send_wifi_if_cmd(iwm, &update,
+                                   sizeof(struct iwm_umac_pmkid_update), 0);
+        if (ret) {
+                IWM_ERR(iwm, "PMKID update command failed\n");
+                return ret;
+        }
+
+        return 0;
+}