HS 2.0: Copy Roaming Consortium OI from (Re)AssocReq to Access-Request

This extends hostapd processing of (Re)Association Request frames to
store a local copy of the Consortium OI within the Roaming Consortium
Selection element, if present, and then add that in HS 2.0 Roaming
Consortium attribute into RADIUS Access-Request messages.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>

src/ap/drv_callbacks.c

@@ -235,6 +235,14 @@ int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
 						 elems.hs20_len - 4);
 	} else
 		sta->hs20_ie = NULL;
+
+	wpabuf_free(sta->roaming_consortium);
+	if (elems.roaming_cons_sel)
+		sta->roaming_consortium = wpabuf_alloc_copy(
+			elems.roaming_cons_sel + 4,
+			elems.roaming_cons_sel_len - 4);
+	else
+		sta->roaming_consortium = NULL;
 #endif /* CONFIG_HS20 */
 
 #ifdef CONFIG_FST

src/ap/ieee802_11.c

@@ -2651,6 +2651,14 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
 						 elems.hs20_len - 4);
 	} else
 		sta->hs20_ie = NULL;
+
+	wpabuf_free(sta->roaming_consortium);
+	if (elems.roaming_cons_sel)
+		sta->roaming_consortium = wpabuf_alloc_copy(
+			elems.roaming_cons_sel + 4,
+			elems.roaming_cons_sel_len - 4);
+	else
+		sta->roaming_consortium = NULL;
 #endif /* CONFIG_HS20 */
 
 #ifdef CONFIG_FST

src/ap/ieee802_1x.c

@@ -712,6 +712,16 @@ void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
 				goto fail;
 			}
 		}
+
+		if (sta->roaming_consortium &&
+		    !radius_msg_add_wfa(
+			    msg, RADIUS_VENDOR_ATTR_WFA_HS20_ROAMING_CONSORTIUM,
+			    wpabuf_head(sta->roaming_consortium),
+			    wpabuf_len(sta->roaming_consortium))) {
+			wpa_printf(MSG_ERROR,
+				   "Could not add HS 2.0 Roaming Consortium");
+			goto fail;
+		}
 	}
 #endif /* CONFIG_HS20 */
 

src/ap/sta_info.c

@@ -321,6 +321,7 @@ void ap_free_sta(struct hostapd_data *hapd, struct sta_info *sta)
 	wpabuf_free(sta->wps_ie);
 	wpabuf_free(sta->p2p_ie);
 	wpabuf_free(sta->hs20_ie);
+	wpabuf_free(sta->roaming_consortium);
 #ifdef CONFIG_FST
 	wpabuf_free(sta->mb_ies);
 #endif /* CONFIG_FST */

src/ap/sta_info.h

@@ -182,6 +182,8 @@ struct sta_info {
 	struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
 	struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
 	struct wpabuf *hs20_ie; /* HS 2.0 IE from (Re)Association Request */
+	/* Hotspot 2.0 Roaming Consortium from (Re)Association Request */
+	struct wpabuf *roaming_consortium;
 	u8 remediation_method;
 	char *remediation_url; /* HS 2.0 Subscription Remediation Server URL */
 	struct wpabuf *hs20_deauth_req;

src/common/ieee802_11_common.c

@@ -120,6 +120,11 @@ static int ieee802_11_parse_vendor_specific(const u8 *pos, size_t elen,
 			elems->mbo = pos;
 			elems->mbo_len = elen;
 			break;
+		case HS20_ROAMING_CONS_SEL_OUI_TYPE:
+			/* Hotspot 2.0 Roaming Consortium Selection */
+			elems->roaming_cons_sel = pos;
+			elems->roaming_cons_sel_len = elen;
+			break;
 		default:
 			wpa_printf(MSG_MSGDUMP, "Unknown WFA "
 				   "information element ignored "

src/common/ieee802_11_common.h

@@ -80,6 +80,7 @@ struct ieee802_11_elems {
 	const u8 *fils_nonce;
 	const u8 *owe_dh;
 	const u8 *power_capab;
+	const u8 *roaming_cons_sel;
 
 	u8 ssid_len;
 	u8 supp_rates_len;
@@ -124,6 +125,7 @@ struct ieee802_11_elems {
 	u8 fils_pk_len;
 	u8 owe_dh_len;
 	u8 power_capab_len;
+	u8 roaming_cons_sel_len;
 
 	struct mb_ies_info mb_ies;
 };

src/common/ieee802_11_defs.h

@@ -1317,6 +1317,7 @@ enum wmm_ac {
 #define HS20_INDICATION_OUI_TYPE 16
 #define HS20_ANQP_OUI_TYPE 17
 #define HS20_OSEN_OUI_TYPE 18
+#define HS20_ROAMING_CONS_SEL_OUI_TYPE 29
 #define HS20_STYPE_QUERY_LIST 1
 #define HS20_STYPE_CAPABILITY_LIST 2
 #define HS20_STYPE_OPERATOR_FRIENDLY_NAME 3

src/radius/radius.h

@@ -198,6 +198,7 @@ enum {
 	RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION = 3,
 	RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ = 4,
 	RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL = 5,
+	RADIUS_VENDOR_ATTR_WFA_HS20_ROAMING_CONSORTIUM = 6,
 };
 
 #ifdef _MSC_VER