| /* |
| * Copyright (c) 2009, Atheros Communications, Inc. |
| * Copyright (c) 2011-2012, Qualcomm Atheros, Inc. |
| * |
| * This software may be distributed under the terms of the BSD license. |
| * See README for more details. |
| */ |
| |
| #include "includes.h" |
| |
| #include "common.h" |
| #include "eloop.h" |
| #include "common/ieee802_11_common.h" |
| #include "common/ieee802_11_defs.h" |
| #include "common/gas.h" |
| #include "common/wpa_ctrl.h" |
| #include "wpa_supplicant_i.h" |
| #include "driver_i.h" |
| #include "config.h" |
| #include "bss.h" |
| #include "gas_query.h" |
| #include "interworking.h" |
| #include "hs20_supplicant.h" |
| |
| |
| void wpas_hs20_add_indication(struct wpabuf *buf) |
| { |
| wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); |
| wpabuf_put_u8(buf, 5); |
| wpabuf_put_be24(buf, OUI_WFA); |
| wpabuf_put_u8(buf, HS20_INDICATION_OUI_TYPE); |
| wpabuf_put_u8(buf, 0x00); /* Hotspot Configuration */ |
| } |
| |
| |
| struct wpabuf * hs20_build_anqp_req(u32 stypes, const u8 *payload, |
| size_t payload_len) |
| { |
| struct wpabuf *buf; |
| u8 *len_pos; |
| |
| buf = gas_anqp_build_initial_req(0, 100 + payload_len); |
| if (buf == NULL) |
| return NULL; |
| |
| len_pos = gas_anqp_add_element(buf, ANQP_VENDOR_SPECIFIC); |
| wpabuf_put_be24(buf, OUI_WFA); |
| wpabuf_put_u8(buf, HS20_ANQP_OUI_TYPE); |
| if (stypes == BIT(HS20_STYPE_NAI_HOME_REALM_QUERY)) { |
| wpabuf_put_u8(buf, HS20_STYPE_NAI_HOME_REALM_QUERY); |
| wpabuf_put_u8(buf, 0); /* Reserved */ |
| if (payload) |
| wpabuf_put_data(buf, payload, payload_len); |
| } else { |
| u8 i; |
| wpabuf_put_u8(buf, HS20_STYPE_QUERY_LIST); |
| wpabuf_put_u8(buf, 0); /* Reserved */ |
| for (i = 0; i < 32; i++) { |
| if (stypes & BIT(i)) |
| wpabuf_put_u8(buf, i); |
| } |
| } |
| gas_anqp_set_element_len(buf, len_pos); |
| |
| gas_anqp_set_len(buf); |
| |
| return buf; |
| } |
| |
| |
| int hs20_anqp_send_req(struct wpa_supplicant *wpa_s, const u8 *dst, u32 stypes, |
| const u8 *payload, size_t payload_len) |
| { |
| struct wpabuf *buf; |
| int ret = 0; |
| int freq; |
| struct wpa_bss *bss; |
| int res; |
| |
| freq = wpa_s->assoc_freq; |
| bss = wpa_bss_get_bssid(wpa_s, dst); |
| if (bss) |
| freq = bss->freq; |
| if (freq <= 0) |
| return -1; |
| |
| wpa_printf(MSG_DEBUG, "HS20: ANQP Query Request to " MACSTR " for " |
| "subtypes 0x%x", MAC2STR(dst), stypes); |
| |
| buf = hs20_build_anqp_req(stypes, payload, payload_len); |
| if (buf == NULL) |
| return -1; |
| |
| res = gas_query_req(wpa_s->gas, dst, freq, buf, anqp_resp_cb, wpa_s); |
| if (res < 0) { |
| wpa_printf(MSG_DEBUG, "ANQP: Failed to send Query Request"); |
| ret = -1; |
| } else |
| wpa_printf(MSG_DEBUG, "ANQP: Query started with dialog token " |
| "%u", res); |
| |
| wpabuf_free(buf); |
| return ret; |
| } |
| |
| |
| void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s, |
| const u8 *sa, const u8 *data, size_t slen) |
| { |
| const u8 *pos = data; |
| u8 subtype; |
| struct wpa_bss *bss = wpa_bss_get_bssid(wpa_s, sa); |
| |
| if (slen < 2) |
| return; |
| |
| subtype = *pos++; |
| slen--; |
| |
| pos++; /* Reserved */ |
| slen--; |
| |
| switch (subtype) { |
| case HS20_STYPE_CAPABILITY_LIST: |
| wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR |
| " HS Capability List", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen); |
| break; |
| case HS20_STYPE_OPERATOR_FRIENDLY_NAME: |
| wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR |
| " Operator Friendly Name", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "oper friendly name", pos, slen); |
| if (bss) { |
| wpabuf_free(bss->hs20_operator_friendly_name); |
| bss->hs20_operator_friendly_name = |
| wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case HS20_STYPE_WAN_METRICS: |
| wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR |
| " WAN Metrics", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "WAN Metrics", pos, slen); |
| if (bss) { |
| wpabuf_free(bss->hs20_wan_metrics); |
| bss->hs20_wan_metrics = wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case HS20_STYPE_CONNECTION_CAPABILITY: |
| wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR |
| " Connection Capability", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "conn capability", pos, slen); |
| if (bss) { |
| wpabuf_free(bss->hs20_connection_capability); |
| bss->hs20_connection_capability = |
| wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| case HS20_STYPE_OPERATING_CLASS: |
| wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR |
| " Operating Class", MAC2STR(sa)); |
| wpa_hexdump_ascii(MSG_DEBUG, "Operating Class", pos, slen); |
| if (bss) { |
| wpabuf_free(bss->hs20_operating_class); |
| bss->hs20_operating_class = |
| wpabuf_alloc_copy(pos, slen); |
| } |
| break; |
| default: |
| wpa_printf(MSG_DEBUG, "HS20: Unsupported subtype %u", subtype); |
| break; |
| } |
| } |