FT: Set FT Capability and Policy properly in MDIE during initial MD assoc

This field needs to be copied from the scan results for the AP
per IEEE Std 802.11r-2008, 11A.4.2.

src/rsn_supp/wpa_ft.c

@@ -62,7 +62,7 @@ int wpa_derive_ptk_ft(struct wpa_sm *sm, const unsigned char *src_addr,
 /**
  * wpa_sm_set_ft_params - Set FT (IEEE 802.11r) parameters
  * @sm: Pointer to WPA state machine data from wpa_sm_init()
- * @mobility_domain: Mobility domain identifier (2 octets)
+ * @mobility_domain: Mobility domain identifier (2 octets + 1 octet)
  * @r0kh_id: PMK-R0 key holder identity (1-48 octets)
  * @r0kh_id_len: R0KH-ID length (1-48)
  * @r1kh_id: PMK-R1 key holder identity (16 octets)
@@ -77,6 +77,9 @@ int wpa_sm_set_ft_params(struct wpa_sm *sm, const u8 *mobility_domain,
 			    mobility_domain, MOBILITY_DOMAIN_ID_LEN);
 		os_memcpy(sm->mobility_domain, mobility_domain,
 			  MOBILITY_DOMAIN_ID_LEN);
+		sm->mdie_ft_capab = mobility_domain[MOBILITY_DOMAIN_ID_LEN];
+		wpa_printf(MSG_DEBUG, "FT: Capability and Policy: 0x%02x",
+			   sm->mdie_ft_capab);
 	} else if (sm)
 		os_memset(sm->mobility_domain, 0, MOBILITY_DOMAIN_ID_LEN);
 
@@ -229,7 +232,8 @@ static u8 * wpa_ft_gen_req_ies(struct wpa_sm *sm, size_t *len,
 	pos += sizeof(*mdie);
 	os_memcpy(mdie->mobility_domain, sm->mobility_domain,
 		  MOBILITY_DOMAIN_ID_LEN);
-	mdie->ft_capab = ap_mdie && ap_mdie[1] >= 3 ? ap_mdie[4] : 0;
+	mdie->ft_capab = ap_mdie && ap_mdie[1] >= 3 ? ap_mdie[4] :
+		sm->mdie_ft_capab;
 
 	/* FTIE[SNonce, [R1KH-ID,] R0KH-ID ] */
 	ftie_pos = pos;

src/rsn_supp/wpa_i.h

@@ -108,6 +108,7 @@ struct wpa_sm {
 	int over_the_ds_in_progress;
 	u8 target_ap[ETH_ALEN]; /* over-the-DS target AP */
 	int set_ptk_after_assoc;
+	u8 mdie_ft_capab; /* FT Capability and Policy from target AP MDIE */
 #endif /* CONFIG_IEEE80211R */
 };
 

wpa_supplicant/sme.c

@@ -178,7 +178,7 @@ void sme_authenticate(struct wpa_supplicant *wpa_s,
 			mdie = (struct rsn_mdie *) pos;
 			os_memcpy(mdie->mobility_domain, md,
 				  MOBILITY_DOMAIN_ID_LEN);
-			mdie->ft_capab = 0;
+			mdie->ft_capab = md[MOBILITY_DOMAIN_ID_LEN];
 			wpa_s->sme.assoc_req_ie_len += 5;
 		}