From 62301b7918160672009250a2db7e900c64df4440 Mon Sep 17 00:00:00 2001
From: James Prestwood <prestwoj@gmail.com>
Date: Fri, 24 Feb 2023 10:51:47 -0800
Subject: [PATCH] ap: handle -ENOTSUP when getting the GTK

Some hardware does not support this, so use a zero RSC in this
case rather than failing the association.
---
 src/ap.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ap.c b/src/ap.c
index fee5a6c8..398e469a 100644
--- a/src/ap.c
+++ b/src/ap.c
@@ -1499,14 +1499,19 @@ static void ap_gtk_query_cb(struct l_genl_msg *msg, void *user_data)
 	struct sta_state *sta = user_data;
 	const void *gtk_rsc;
 	uint8_t zero_gtk_rsc[6];
+	int err;
 
 	sta->gtk_query_cmd_id = 0;
 
-	if (l_genl_msg_get_error(msg) < 0)
+	err = l_genl_msg_get_error(msg);
+	if (err == -ENOTSUP)
+		goto zero_rsc;
+	else if (err < 0)
 		goto error;
 
 	gtk_rsc = nl80211_parse_get_key_seq(msg);
 	if (!gtk_rsc) {
+zero_rsc:
 		memset(zero_gtk_rsc, 0, 6);
 		gtk_rsc = zero_gtk_rsc;
 	}