qcacld-3.0: Update authentication algo in SAE auth retry frame

In SAE pmksa caching case, the authentication algorithm will be
open and pmkid will be included in association request frame.
Full SAE authentication with auth algo 3 will not happen.
If in SAE pmksa caching case, the auth frame is not acknowledged
then auth retry happens and while filling the authentication
algorithm in the auth retry frame, the driver doesn't check if
sae pmk caching is used. So if auth retry happens due to auth
failure, the driver sends authentication frame with auth algo as
SAE. So the AP tries to validate the auth frame for SAE cyclic
group and sends auth reject with status code 77 - the offered
finite cyclic group is not supported.

Fill the authentication algorithm as open for auth retry frame
in sae pmk cached case.

Change-Id: I6b579b8254623d1d267670862d2060fabc85edeb
CRs-Fixed: 2545547

core/mac/src/pe/lim/lim_process_mlm_req_messages.c

@@ -1865,31 +1865,29 @@ static void lim_process_periodic_join_probe_req_timer(struct mac_context *mac_ct
 }
 
 /**
- * lim_process_auth_retry_timer()- function to Retry Auth
+ * lim_process_auth_retry_timer()- function to Retry Auth when auth timeout
+ * occurs
  * @mac_ctx:pointer to global mac
  *
  * Return: void
  */
-
 static void lim_process_auth_retry_timer(struct mac_context *mac_ctx)
 {
-	struct pe_session * session_entry;
+	struct pe_session *session_entry;
+	tAniAuthType auth_type = mac_ctx->lim.gpLimMlmAuthReq->authType;
+	tLimTimers *lim_timers = &mac_ctx->lim.lim_timers;
+	uint16_t vdev_id =
+		lim_timers->g_lim_periodic_auth_retry_timer.sessionId;
 
-	session_entry =
-	  pe_find_session_by_session_id(mac_ctx,
-	  mac_ctx->lim.lim_timers.g_lim_periodic_auth_retry_timer.sessionId);
+	session_entry = pe_find_session_by_session_id(mac_ctx, vdev_id);
 	if (!session_entry) {
-		pe_err("session does not exist for given SessionId: %d",
-		  mac_ctx->lim.lim_timers.
-			g_lim_periodic_auth_retry_timer.sessionId);
+		pe_err("session does not exist for vdev_id: %d", vdev_id);
 		return;
 	}
 
 	if (tx_timer_running(&mac_ctx->lim.lim_timers.gLimAuthFailureTimer) &&
-			     (session_entry->limMlmState ==
-			      eLIM_MLM_WT_AUTH_FRAME2_STATE) &&
-			     (LIM_AUTH_ACK_RCD_SUCCESS !=
-			      mac_ctx->auth_ack_status)) {
+	    (session_entry->limMlmState == eLIM_MLM_WT_AUTH_FRAME2_STATE) &&
+	     (LIM_AUTH_ACK_RCD_SUCCESS != mac_ctx->auth_ack_status)) {
 		tSirMacAuthFrameBody    auth_frame;
 
 		/*
@@ -1898,16 +1896,20 @@ static void lim_process_auth_retry_timer(struct mac_context *mac_ctx)
 		 */
 		if (LIM_AUTH_ACK_RCD_FAILURE == mac_ctx->auth_ack_status) {
 			/* Prepare & send Authentication frame */
-			auth_frame.authAlgoNumber =
-			    (uint8_t) mac_ctx->lim.gpLimMlmAuthReq->authType;
+			if (session_entry->sae_pmk_cached &&
+			    auth_type == eSIR_AUTH_TYPE_SAE)
+				auth_frame.authAlgoNumber = eSIR_OPEN_SYSTEM;
+			else
+				auth_frame.authAlgoNumber = (uint8_t)
+					mac_ctx->lim.gpLimMlmAuthReq->authType;
+
 			auth_frame.authTransactionSeqNumber =
 						SIR_MAC_AUTH_FRAME_1;
 			auth_frame.authStatusCode = 0;
 			pe_debug("Retry Auth");
 			mac_ctx->auth_ack_status = LIM_AUTH_ACK_NOT_RCD;
 			lim_increase_fils_sequence_number(session_entry);
-			lim_send_auth_mgmt_frame(mac_ctx,
-				&auth_frame,
+			lim_send_auth_mgmt_frame(mac_ctx, &auth_frame,
 				mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr,
 				LIM_NO_WEP_IN_FC, session_entry);
 		}