[PATCH] AP: guard FT-SAE code with CONFIG_IEEE80211R_AP

[Beniamino Galvani]

wpa_supplicant doesn't support FT in AP mode, but it still negotiates
FT-SAE. This can lead to an authentication failure when the AP is
started with key_mgmt="SAE FT-SAE" and the STA supports both.

Ensure that FT-SAE is not negotiated when CONFIG_IEEE80211R_AP is not
defined.

Signed-off-by: Beniamino Galvani <bgalvani at redhat.com>
---
 src/ap/wpa_auth_ie.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/ap/wpa_auth_ie.c b/src/ap/wpa_auth_ie.c
index 524922e4e..d63cbeb92 100644
--- a/src/ap/wpa_auth_ie.c
+++ b/src/ap/wpa_auth_ie.c
@@ -228,11 +228,13 @@ int wpa_write_rsn_ie(struct wpa_auth_config *conf, u8 *buf, size_t len,
 		pos += RSN_SELECTOR_LEN;
 		num_suites++;
 	}
+#ifdef CONFIG_IEEE80211R_AP
 	if (conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 		RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_FT_SAE);
 		pos += RSN_SELECTOR_LEN;
 		num_suites++;
 	}
+#endif /* CONFIG_IEEE80211R_AP */
 #endif /* CONFIG_SAE */
 	if (conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 		RSN_SELECTOR_PUT(pos, RSN_AUTH_KEY_MGMT_802_1X_SUITE_B);
@@ -670,8 +672,10 @@ wpa_validate_wpa_ie(struct wpa_authenticator *wpa_auth,
 #ifdef CONFIG_SAE
 		else if (data.key_mgmt & WPA_KEY_MGMT_SAE)
 			selector = RSN_AUTH_KEY_MGMT_SAE;
+#ifdef CONFIG_IEEE80211R_AP
 		else if (data.key_mgmt & WPA_KEY_MGMT_FT_SAE)
 			selector = RSN_AUTH_KEY_MGMT_FT_SAE;
+#endif /* CONFIG_IEEE80211R_AP */
 #endif /* CONFIG_SAE */
 		else if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 			selector = RSN_AUTH_KEY_MGMT_UNSPEC_802_1X;
@@ -778,8 +782,10 @@ wpa_validate_wpa_ie(struct wpa_authenticator *wpa_auth,
 #ifdef CONFIG_SAE
 	else if (key_mgmt & WPA_KEY_MGMT_SAE)
 		sm->wpa_key_mgmt = WPA_KEY_MGMT_SAE;
+#ifdef CONFIG_IEEE80211R_AP
 	else if (key_mgmt & WPA_KEY_MGMT_FT_SAE)
 		sm->wpa_key_mgmt = WPA_KEY_MGMT_FT_SAE;
+#endif /* CONFIG_IEEE80211R_AP */
 #endif /* CONFIG_SAE */
 	else if (key_mgmt & WPA_KEY_MGMT_IEEE8021X)
 		sm->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X;
-- 
2.34.1