ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/mbo.c b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/mbo.c
new file mode 100644
index 0000000..59b15da
--- /dev/null
+++ b/package/kernel/asr-wl/asr-hostapd/asr-hostapd-2023-06-22/wpa_supplicant/mbo.c
@@ -0,0 +1,682 @@
+/*
+ * wpa_supplicant - MBO
+ *
+ * Copyright(c) 2015 Intel Deutschland GmbH
+ * Contact Information:
+ * Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "common/ieee802_11_defs.h"
+#include "common/gas.h"
+#include "rsn_supp/wpa.h"
+#include "config.h"
+#include "wpa_supplicant_i.h"
+#include "driver_i.h"
+#include "bss.h"
+#include "scan.h"
+
+/* type + length + oui + oui type */
+#define MBO_IE_HEADER 6
+
+
+static int wpas_mbo_validate_non_pref_chan(u8 oper_class, u8 chan, u8 reason)
+{
+ if (reason > MBO_NON_PREF_CHAN_REASON_INT_INTERFERENCE)
+ return -1;
+
+ /* Only checking the validity of the channel and oper_class */
+ if (ieee80211_chan_to_freq(NULL, oper_class, chan) == -1)
+ return -1;
+
+ return 0;
+}
+
+
+const u8 * mbo_attr_from_mbo_ie(const u8 *mbo_ie, enum mbo_attr_id attr)
+{
+ const u8 *mbo;
+ u8 ie_len = mbo_ie[1];
+
+ if (ie_len < MBO_IE_HEADER - 2)
+ return NULL;
+ mbo = mbo_ie + MBO_IE_HEADER;
+
+ return get_ie(mbo, 2 + ie_len - MBO_IE_HEADER, attr);
+}
+
+
+const u8 * mbo_get_attr_from_ies(const u8 *ies, size_t ies_len,
+ enum mbo_attr_id attr)
+{
+ const u8 *mbo_ie;
+
+ mbo_ie = get_vendor_ie(ies, ies_len, MBO_IE_VENDOR_TYPE);
+ if (!mbo_ie)
+ return NULL;
+
+ return mbo_attr_from_mbo_ie(mbo_ie, attr);
+}
+
+
+static const u8 * wpas_mbo_get_bss_attr(struct wpa_bss *bss,
+ enum mbo_attr_id attr, bool beacon)
+{
+ const u8 *mbo, *end;
+
+ if (!bss)
+ return NULL;
+
+ if (beacon)
+ mbo = wpa_bss_get_vendor_ie_beacon(bss, MBO_IE_VENDOR_TYPE);
+ else
+ mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
+ if (!mbo)
+ return NULL;
+
+ end = mbo + 2 + mbo[1];
+ mbo += MBO_IE_HEADER;
+
+ return get_ie(mbo, end - mbo, attr);
+}
+
+
+const u8 * wpas_mbo_check_assoc_disallow(struct wpa_bss *bss)
+{
+ const u8 *assoc_disallow;
+
+ assoc_disallow = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_ASSOC_DISALLOW,
+ bss->beacon_newer);
+ if (assoc_disallow && assoc_disallow[1] >= 1)
+ return assoc_disallow;
+
+ return NULL;
+}
+
+
+void wpas_mbo_check_pmf(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
+ struct wpa_ssid *ssid)
+{
+ const u8 *rsne, *mbo, *oce;
+ struct wpa_ie_data ie;
+
+ wpa_s->disable_mbo_oce = 0;
+ if (!bss)
+ return;
+ mbo = wpas_mbo_get_bss_attr(bss, MBO_ATTR_ID_AP_CAPA_IND, false);
+ oce = wpas_mbo_get_bss_attr(bss, OCE_ATTR_ID_CAPA_IND, false);
+ if (!mbo && !oce)
+ return;
+ if (oce && oce[1] >= 1 && (oce[2] & OCE_IS_STA_CFON))
+ return; /* STA-CFON is not required to enable PMF */
+ rsne = wpa_bss_get_ie(bss, WLAN_EID_RSN);
+ if (!rsne || wpa_parse_wpa_ie(rsne, 2 + rsne[1], &ie) < 0)
+ return; /* AP is not using RSN */
+
+ if (!(ie.capabilities & WPA_CAPABILITY_MFPC))
+ wpa_s->disable_mbo_oce = 1; /* AP uses RSN without PMF */
+ if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
+ wpa_s->disable_mbo_oce = 1; /* STA uses RSN without PMF */
+ if (wpa_s->disable_mbo_oce)
+ wpa_printf(MSG_INFO,
+ "MBO: Disable MBO/OCE due to misbehaving AP not having enabled PMF");
+}
+
+
+static void wpas_mbo_non_pref_chan_attr_body(struct wpa_supplicant *wpa_s,
+ struct wpabuf *mbo,
+ u8 start, u8 end)
+{
+ u8 i;
+
+ wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].oper_class);
+
+ for (i = start; i < end; i++)
+ wpabuf_put_u8(mbo, wpa_s->non_pref_chan[i].chan);
+
+ wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].preference);
+ wpabuf_put_u8(mbo, wpa_s->non_pref_chan[start].reason);
+}
+
+
+static void wpas_mbo_non_pref_chan_attr_hdr(struct wpabuf *mbo, size_t size)
+{
+ wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT);
+ wpabuf_put_u8(mbo, size); /* Length */
+}
+
+
+static void wpas_mbo_non_pref_chan_attr(struct wpa_supplicant *wpa_s,
+ struct wpabuf *mbo, u8 start, u8 end)
+{
+ size_t size = end - start + 3;
+
+ if (size + 2 > wpabuf_tailroom(mbo))
+ return;
+
+ wpas_mbo_non_pref_chan_attr_hdr(mbo, size);
+ wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end);
+}
+
+
+static void wpas_mbo_non_pref_chan_subelem_hdr(struct wpabuf *mbo, u8 len)
+{
+ wpabuf_put_u8(mbo, WLAN_EID_VENDOR_SPECIFIC);
+ wpabuf_put_u8(mbo, len); /* Length */
+ wpabuf_put_be24(mbo, OUI_WFA);
+ wpabuf_put_u8(mbo, MBO_ATTR_ID_NON_PREF_CHAN_REPORT);
+}
+
+
+static void wpas_mbo_non_pref_chan_subelement(struct wpa_supplicant *wpa_s,
+ struct wpabuf *mbo, u8 start,
+ u8 end)
+{
+ size_t size = end - start + 7;
+
+ if (size + 2 > wpabuf_tailroom(mbo))
+ return;
+
+ wpas_mbo_non_pref_chan_subelem_hdr(mbo, size);
+ wpas_mbo_non_pref_chan_attr_body(wpa_s, mbo, start, end);
+}
+
+
+static void wpas_mbo_non_pref_chan_attrs(struct wpa_supplicant *wpa_s,
+ struct wpabuf *mbo, int subelement)
+{
+ u8 i, start = 0;
+ struct wpa_mbo_non_pref_channel *start_pref;
+
+ if (!wpa_s->non_pref_chan || !wpa_s->non_pref_chan_num) {
+ if (subelement)
+ wpas_mbo_non_pref_chan_subelem_hdr(mbo, 4);
+ else
+ wpas_mbo_non_pref_chan_attr_hdr(mbo, 0);
+ return;
+ }
+ start_pref = &wpa_s->non_pref_chan[0];
+
+ for (i = 1; i <= wpa_s->non_pref_chan_num; i++) {
+ struct wpa_mbo_non_pref_channel *non_pref = NULL;
+
+ if (i < wpa_s->non_pref_chan_num)
+ non_pref = &wpa_s->non_pref_chan[i];
+ if (!non_pref ||
+ non_pref->oper_class != start_pref->oper_class ||
+ non_pref->reason != start_pref->reason ||
+ non_pref->preference != start_pref->preference) {
+ if (subelement)
+ wpas_mbo_non_pref_chan_subelement(wpa_s, mbo,
+ start, i);
+ else
+ wpas_mbo_non_pref_chan_attr(wpa_s, mbo, start,
+ i);
+
+ if (!non_pref)
+ return;
+
+ start = i;
+ start_pref = non_pref;
+ }
+ }
+}
+
+
+int wpas_mbo_ie(struct wpa_supplicant *wpa_s, u8 *buf, size_t len,
+ int add_oce_capa)
+{
+ struct wpabuf *mbo;
+ int res;
+
+ if (len < MBO_IE_HEADER + 3 + 7 +
+ ((wpa_s->enable_oce & OCE_STA) ? 3 : 0))
+ return 0;
+
+ /* Leave room for the MBO IE header */
+ mbo = wpabuf_alloc(len - MBO_IE_HEADER);
+ if (!mbo)
+ return 0;
+
+ /* Add non-preferred channels attribute */
+ wpas_mbo_non_pref_chan_attrs(wpa_s, mbo, 0);
+
+ /*
+ * Send cellular capabilities attribute even if AP does not advertise
+ * cellular capabilities.
+ */
+ wpabuf_put_u8(mbo, MBO_ATTR_ID_CELL_DATA_CAPA);
+ wpabuf_put_u8(mbo, 1);
+ wpabuf_put_u8(mbo, wpa_s->conf->mbo_cell_capa);
+
+ /* Add OCE capability indication attribute if OCE is enabled */
+ if ((wpa_s->enable_oce & OCE_STA) && add_oce_capa) {
+ wpabuf_put_u8(mbo, OCE_ATTR_ID_CAPA_IND);
+ wpabuf_put_u8(mbo, 1);
+ wpabuf_put_u8(mbo, OCE_RELEASE);
+ }
+
+ res = mbo_add_ie(buf, len, wpabuf_head_u8(mbo), wpabuf_len(mbo));
+ if (!res)
+ wpa_printf(MSG_ERROR, "Failed to add MBO/OCE IE");
+
+ wpabuf_free(mbo);
+ return res;
+}
+
+
+static void wpas_mbo_send_wnm_notification(struct wpa_supplicant *wpa_s,
+ const u8 *data, size_t len)
+{
+ struct wpabuf *buf;
+ int res;
+
+ /*
+ * Send WNM-Notification Request frame only in case of a change in
+ * non-preferred channels list during association, if the AP supports
+ * MBO.
+ */
+ if (wpa_s->wpa_state != WPA_COMPLETED || !wpa_s->current_bss ||
+ !wpa_bss_get_vendor_ie(wpa_s->current_bss, MBO_IE_VENDOR_TYPE))
+ return;
+
+ buf = wpabuf_alloc(4 + len);
+ if (!buf)
+ return;
+
+ wpabuf_put_u8(buf, WLAN_ACTION_WNM);
+ wpabuf_put_u8(buf, WNM_NOTIFICATION_REQ);
+ wpa_s->mbo_wnm_token++;
+ if (wpa_s->mbo_wnm_token == 0)
+ wpa_s->mbo_wnm_token++;
+ wpabuf_put_u8(buf, wpa_s->mbo_wnm_token);
+ wpabuf_put_u8(buf, WLAN_EID_VENDOR_SPECIFIC); /* Type */
+
+ wpabuf_put_data(buf, data, len);
+
+ res = wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
+ wpa_s->own_addr, wpa_s->bssid,
+ wpabuf_head(buf), wpabuf_len(buf), 0);
+ if (res < 0)
+ wpa_printf(MSG_DEBUG,
+ "Failed to send WNM-Notification Request frame with non-preferred channel list");
+
+ wpabuf_free(buf);
+}
+
+
+static void wpas_mbo_non_pref_chan_changed(struct wpa_supplicant *wpa_s)
+{
+ struct wpabuf *buf;
+
+ buf = wpabuf_alloc(512);
+ if (!buf)
+ return;
+
+ wpas_mbo_non_pref_chan_attrs(wpa_s, buf, 1);
+ wpas_mbo_send_wnm_notification(wpa_s, wpabuf_head_u8(buf),
+ wpabuf_len(buf));
+ wpas_update_mbo_connect_params(wpa_s);
+ wpabuf_free(buf);
+}
+
+
+static int wpa_non_pref_chan_is_eq(struct wpa_mbo_non_pref_channel *a,
+ struct wpa_mbo_non_pref_channel *b)
+{
+ return a->oper_class == b->oper_class && a->chan == b->chan;
+}
+
+
+/*
+ * wpa_non_pref_chan_cmp - Compare two channels for sorting
+ *
+ * In MBO IE non-preferred channel subelement we can put many channels in an
+ * attribute if they are in the same operating class and have the same
+ * preference and reason. To make it easy for the functions that build
+ * the IE attributes and WNM Request subelements, save the channels sorted
+ * by their oper_class and reason.
+ */
+static int wpa_non_pref_chan_cmp(const void *_a, const void *_b)
+{
+ const struct wpa_mbo_non_pref_channel *a = _a, *b = _b;
+
+ if (a->oper_class != b->oper_class)
+ return (int) a->oper_class - (int) b->oper_class;
+ if (a->reason != b->reason)
+ return (int) a->reason - (int) b->reason;
+ return (int) a->preference - (int) b->preference;
+}
+
+
+int wpas_mbo_update_non_pref_chan(struct wpa_supplicant *wpa_s,
+ const char *non_pref_chan)
+{
+ char *cmd, *token, *context = NULL;
+ struct wpa_mbo_non_pref_channel *chans = NULL, *tmp_chans;
+ size_t num = 0, size = 0;
+ unsigned i;
+
+ wpa_printf(MSG_DEBUG, "MBO: Update non-preferred channels, non_pref_chan=%s",
+ non_pref_chan ? non_pref_chan : "N/A");
+
+ /*
+ * The shortest channel configuration is 7 characters - 3 colons and
+ * 4 values.
+ */
+ if (!non_pref_chan || os_strlen(non_pref_chan) < 7)
+ goto update;
+
+ cmd = os_strdup(non_pref_chan);
+ if (!cmd)
+ return -1;
+
+ while ((token = str_token(cmd, " ", &context))) {
+ struct wpa_mbo_non_pref_channel *chan;
+ int ret;
+ unsigned int _oper_class;
+ unsigned int _chan;
+ unsigned int _preference;
+ unsigned int _reason;
+
+ if (num == size) {
+ size = size ? size * 2 : 1;
+ tmp_chans = os_realloc_array(chans, size,
+ sizeof(*chans));
+ if (!tmp_chans) {
+ wpa_printf(MSG_ERROR,
+ "Couldn't reallocate non_pref_chan");
+ goto fail;
+ }
+ chans = tmp_chans;
+ }
+
+ chan = &chans[num];
+
+ ret = sscanf(token, "%u:%u:%u:%u", &_oper_class,
+ &_chan, &_preference, &_reason);
+ if (ret != 4 ||
+ _oper_class > 255 || _chan > 255 ||
+ _preference > 255 || _reason > 65535 ) {
+ wpa_printf(MSG_ERROR, "Invalid non-pref chan input %s",
+ token);
+ goto fail;
+ }
+ chan->oper_class = _oper_class;
+ chan->chan = _chan;
+ chan->preference = _preference;
+ chan->reason = _reason;
+
+ if (wpas_mbo_validate_non_pref_chan(chan->oper_class,
+ chan->chan, chan->reason)) {
+ wpa_printf(MSG_ERROR,
+ "Invalid non_pref_chan: oper class %d chan %d reason %d",
+ chan->oper_class, chan->chan, chan->reason);
+ goto fail;
+ }
+
+ for (i = 0; i < num; i++)
+ if (wpa_non_pref_chan_is_eq(chan, &chans[i]))
+ break;
+ if (i != num) {
+ wpa_printf(MSG_ERROR,
+ "oper class %d chan %d is duplicated",
+ chan->oper_class, chan->chan);
+ goto fail;
+ }
+
+ num++;
+ }
+
+ os_free(cmd);
+
+ if (chans) {
+ qsort(chans, num, sizeof(struct wpa_mbo_non_pref_channel),
+ wpa_non_pref_chan_cmp);
+ }
+
+update:
+ os_free(wpa_s->non_pref_chan);
+ wpa_s->non_pref_chan = chans;
+ wpa_s->non_pref_chan_num = num;
+ wpas_mbo_non_pref_chan_changed(wpa_s);
+
+ return 0;
+
+fail:
+ os_free(chans);
+ os_free(cmd);
+ return -1;
+}
+
+
+void wpas_mbo_scan_ie(struct wpa_supplicant *wpa_s, struct wpabuf *ie)
+{
+ u8 *len;
+
+ wpabuf_put_u8(ie, WLAN_EID_VENDOR_SPECIFIC);
+ len = wpabuf_put(ie, 1);
+
+ wpabuf_put_be24(ie, OUI_WFA);
+ wpabuf_put_u8(ie, MBO_OUI_TYPE);
+
+ wpabuf_put_u8(ie, MBO_ATTR_ID_CELL_DATA_CAPA);
+ wpabuf_put_u8(ie, 1);
+ wpabuf_put_u8(ie, wpa_s->conf->mbo_cell_capa);
+ if (wpa_s->enable_oce & OCE_STA) {
+ wpabuf_put_u8(ie, OCE_ATTR_ID_CAPA_IND);
+ wpabuf_put_u8(ie, 1);
+ wpabuf_put_u8(ie, OCE_RELEASE);
+ }
+ *len = (u8 *) wpabuf_put(ie, 0) - len - 1;
+}
+
+
+void wpas_mbo_ie_trans_req(struct wpa_supplicant *wpa_s, const u8 *mbo_ie,
+ size_t len)
+{
+ const u8 *pos, *cell_pref = NULL;
+ u8 id, elen;
+ u16 disallowed_sec = 0;
+
+ if (len <= 4 || WPA_GET_BE24(mbo_ie) != OUI_WFA ||
+ mbo_ie[3] != MBO_OUI_TYPE)
+ return;
+
+ pos = mbo_ie + 4;
+ len -= 4;
+
+ while (len >= 2) {
+ id = *pos++;
+ elen = *pos++;
+ len -= 2;
+
+ if (elen > len)
+ goto fail;
+
+ switch (id) {
+ case MBO_ATTR_ID_CELL_DATA_PREF:
+ if (elen != 1)
+ goto fail;
+
+ if (wpa_s->conf->mbo_cell_capa ==
+ MBO_CELL_CAPA_AVAILABLE)
+ cell_pref = pos;
+ else
+ wpa_printf(MSG_DEBUG,
+ "MBO: Station does not support Cellular data connection");
+ break;
+ case MBO_ATTR_ID_TRANSITION_REASON:
+ if (elen != 1)
+ goto fail;
+
+ wpa_s->wnm_mbo_trans_reason_present = 1;
+ wpa_s->wnm_mbo_transition_reason = *pos;
+ break;
+ case MBO_ATTR_ID_ASSOC_RETRY_DELAY:
+ if (elen != 2)
+ goto fail;
+
+ if (wpa_s->wnm_mode &
+ WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED) {
+ wpa_printf(MSG_DEBUG,
+ "MBO: Unexpected association retry delay, BSS is terminating");
+ goto fail;
+ } else if (wpa_s->wnm_mode &
+ WNM_BSS_TM_REQ_DISASSOC_IMMINENT) {
+ disallowed_sec = WPA_GET_LE16(pos);
+ wpa_printf(MSG_DEBUG,
+ "MBO: Association retry delay: %u",
+ disallowed_sec);
+ } else {
+ wpa_printf(MSG_DEBUG,
+ "MBO: Association retry delay attribute not in disassoc imminent mode");
+ }
+
+ break;
+ case MBO_ATTR_ID_AP_CAPA_IND:
+ case MBO_ATTR_ID_NON_PREF_CHAN_REPORT:
+ case MBO_ATTR_ID_CELL_DATA_CAPA:
+ case MBO_ATTR_ID_ASSOC_DISALLOW:
+ case MBO_ATTR_ID_TRANSITION_REJECT_REASON:
+ wpa_printf(MSG_DEBUG,
+ "MBO: Attribute %d should not be included in BTM Request frame",
+ id);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "MBO: Unknown attribute id %u",
+ id);
+ return;
+ }
+
+ pos += elen;
+ len -= elen;
+ }
+
+ if (cell_pref)
+ wpa_msg(wpa_s, MSG_INFO, MBO_CELL_PREFERENCE "preference=%u",
+ *cell_pref);
+
+ if (wpa_s->wnm_mbo_trans_reason_present)
+ wpa_msg(wpa_s, MSG_INFO, MBO_TRANSITION_REASON "reason=%u",
+ wpa_s->wnm_mbo_transition_reason);
+
+ if (disallowed_sec && wpa_s->current_bss)
+ wpa_bss_tmp_disallow(wpa_s, wpa_s->current_bss->bssid,
+ disallowed_sec, 0);
+
+ return;
+fail:
+ wpa_printf(MSG_DEBUG, "MBO IE parsing failed (id=%u len=%u left=%zu)",
+ id, elen, len);
+}
+
+
+size_t wpas_mbo_ie_bss_trans_reject(struct wpa_supplicant *wpa_s, u8 *pos,
+ size_t len,
+ enum mbo_transition_reject_reason reason)
+{
+ u8 reject_attr[3];
+
+ reject_attr[0] = MBO_ATTR_ID_TRANSITION_REJECT_REASON;
+ reject_attr[1] = 1;
+ reject_attr[2] = reason;
+
+ return mbo_add_ie(pos, len, reject_attr, sizeof(reject_attr));
+}
+
+
+void wpas_mbo_update_cell_capa(struct wpa_supplicant *wpa_s, u8 mbo_cell_capa)
+{
+ u8 cell_capa[7];
+
+ if (wpa_s->conf->mbo_cell_capa == mbo_cell_capa) {
+ wpa_printf(MSG_DEBUG,
+ "MBO: Cellular capability already set to %u",
+ mbo_cell_capa);
+ return;
+ }
+
+ wpa_s->conf->mbo_cell_capa = mbo_cell_capa;
+
+ cell_capa[0] = WLAN_EID_VENDOR_SPECIFIC;
+ cell_capa[1] = 5; /* Length */
+ WPA_PUT_BE24(cell_capa + 2, OUI_WFA);
+ cell_capa[5] = MBO_ATTR_ID_CELL_DATA_CAPA;
+ cell_capa[6] = mbo_cell_capa;
+
+ wpas_mbo_send_wnm_notification(wpa_s, cell_capa, 7);
+ wpa_supplicant_set_default_scan_ies(wpa_s);
+ wpas_update_mbo_connect_params(wpa_s);
+}
+
+
+struct wpabuf * mbo_build_anqp_buf(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss, u32 mbo_subtypes)
+{
+ struct wpabuf *anqp_buf;
+ u8 *len_pos;
+ u8 i;
+
+ if (!wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE)) {
+ wpa_printf(MSG_INFO, "MBO: " MACSTR
+ " does not support MBO - cannot request MBO ANQP elements from it",
+ MAC2STR(bss->bssid));
+ return NULL;
+ }
+
+ /* Allocate size for the maximum case - all MBO subtypes are set */
+ anqp_buf = wpabuf_alloc(9 + MAX_MBO_ANQP_SUBTYPE);
+ if (!anqp_buf)
+ return NULL;
+
+ len_pos = gas_anqp_add_element(anqp_buf, ANQP_VENDOR_SPECIFIC);
+ wpabuf_put_be24(anqp_buf, OUI_WFA);
+ wpabuf_put_u8(anqp_buf, MBO_ANQP_OUI_TYPE);
+
+ wpabuf_put_u8(anqp_buf, MBO_ANQP_SUBTYPE_QUERY_LIST);
+
+ /* The first valid MBO subtype is 1 */
+ for (i = 1; i <= MAX_MBO_ANQP_SUBTYPE; i++) {
+ if (mbo_subtypes & BIT(i))
+ wpabuf_put_u8(anqp_buf, i);
+ }
+
+ gas_anqp_set_element_len(anqp_buf, len_pos);
+
+ return anqp_buf;
+}
+
+
+void mbo_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss, const u8 *sa,
+ const u8 *data, size_t slen)
+{
+ const u8 *pos = data;
+ u8 subtype;
+
+ if (slen < 1)
+ return;
+
+ subtype = *pos++;
+ slen--;
+
+ switch (subtype) {
+ case MBO_ANQP_SUBTYPE_CELL_CONN_PREF:
+ if (slen < 1)
+ break;
+ wpa_msg(wpa_s, MSG_INFO, RX_MBO_ANQP MACSTR
+ " cell_conn_pref=%u", MAC2STR(sa), *pos);
+ break;
+ default:
+ wpa_printf(MSG_DEBUG, "MBO: Unsupported ANQP subtype %u",
+ subtype);
+ break;
+ }
+}