2 * Copyright (c) 2009, Atheros Communications, Inc.
3 * Copyright (c) 2011-2012, Qualcomm Atheros, Inc.
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
13 #include "common/ieee802_11_common.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/gas.h"
16 #include "common/wpa_ctrl.h"
17 #include "wpa_supplicant_i.h"
21 #include "gas_query.h"
22 #include "interworking.h"
23 #include "hs20_supplicant.h"
26 void wpas_hs20_add_indication(struct wpabuf *buf)
28 wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC);
29 wpabuf_put_u8(buf, 5);
30 wpabuf_put_be24(buf, OUI_WFA);
31 wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE);
32 wpabuf_put_u8(buf, 0x00); /* Hotspot Configuration */
36 int is_hs20_network(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
39 if (!wpa_s->conf->hs20 || !ssid)
42 if (ssid->parent_cred)
45 if (bss && !wpa_bss_get_vendor_ie(bss, HS20_IE_VENDOR_TYPE))
49 * This may catch some non-Hotspot 2.0 cases, but it is safer to do that
50 * than cause Hotspot 2.0 connections without indication element getting
51 * added. Non-Hotspot 2.0 APs should ignore the unknown vendor element.
54 if (!(ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X))
56 if (!(ssid->pairwise_cipher & WPA_CIPHER_CCMP))
58 if (ssid->proto != WPA_PROTO_RSN)
65 struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload,
71 buf = gas_anqp_build_initial_req(0, 100 + payload_len);
75 len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC);
76 wpabuf_put_be24(buf, OUI_WFA);
77 wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE);
78 if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) {
79 wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY);
80 wpabuf_put_u8(buf, 0); /* Reserved */
82 wpabuf_put_data(buf, payload, payload_len);
85 wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST);
86 wpabuf_put_u8(buf, 0); /* Reserved */
87 for (i = 0; i < 32; i++) {
89 wpabuf_put_u8(buf, i);
92 gas_anqp_set_element_len(buf, len_pos);
94 gas_anqp_set_len(buf);
100 int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes,
101 const u8 *payload, size_t payload_len)
109 freq = wpa_s->assoc_freq;
110 bss = wpa_bss_get_bssid(wpa_s, dst);
112 wpa_bss_anqp_unshare_alloc(bss);
118 wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for "
119 "subtypes 0x%x", MAC2STR(dst), stypes);
121 buf = hs20_build_anqp_req(stypes, payload, payload_len);
125 res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s);
127 wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request");
130 wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token "
138 void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
139 const u8 *sa, const u8 *data, size_t slen)
141 const u8 *pos = data;
143 struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa);
144 struct wpa_bss_anqp *anqp = NULL;
155 pos++; /* Reserved */
159 case HS20_STYPE_CAPABILITY_LIST:
160 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
161 " HS Capability List", MAC2STR(sa));
162 wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
164 case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
165 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
166 " Operator Friendly Name", MAC2STR(sa));
167 wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen);
169 wpabuf_free(anqp->hs20_operator_friendly_name);
170 anqp->hs20_operator_friendly_name =
171 wpabuf_alloc_copy(pos, slen);
174 case HS20_STYPE_WAN_METRICS:
175 wpa_hexdump(MSG_DEBUG, "WAN Metrics", pos, slen);
177 wpa_dbg(wpa_s, MSG_DEBUG, "HS 2.0: Too short WAN "
178 "Metrics value from " MACSTR, MAC2STR(sa));
181 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
182 " WAN Metrics %02x:%u:%u:%u:%u:%u", MAC2STR(sa),
183 pos[0], WPA_GET_LE32(pos + 1), WPA_GET_LE32(pos + 5),
184 pos[9], pos[10], WPA_GET_LE16(pos + 11));
186 wpabuf_free(anqp->hs20_wan_metrics);
187 anqp->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen);
190 case HS20_STYPE_CONNECTION_CAPABILITY:
191 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
192 " Connection Capability", MAC2STR(sa));
193 wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen);
195 wpabuf_free(anqp->hs20_connection_capability);
196 anqp->hs20_connection_capability =
197 wpabuf_alloc_copy(pos, slen);
200 case HS20_STYPE_OPERATING_CLASS:
201 wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
202 " Operating Class", MAC2STR(sa));
203 wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen);
205 wpabuf_free(anqp->hs20_operating_class);
206 anqp->hs20_operating_class =
207 wpabuf_alloc_copy(pos, slen);
211 wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype);