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/*
* 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 "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "rsn_supp/wpa.h"
#include "wpa_supplicant_i.h"
#include "bss.h"
#include "scan.h"
#include "ieee802_11_common.h"
#ifdef ESP_SUPPLICANT
#include "esp_mbo.h"
extern struct wpa_supplicant g_wpa_supp;
#endif
/* type + length + oui + oui type */
#define MBO_IE_HEADER 6
#ifndef ESP_SUPPLICANT
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;
}
#endif
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);
}
const u8 * wpas_mbo_get_bss_attr(struct wpa_bss *bss, enum mbo_attr_id attr)
{
const u8 *mbo, *end;
if (!bss)
return NULL;
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);
}
void wpas_mbo_check_pmf(struct wpa_supplicant *wpa_s, struct wpa_bss *bss
#ifndef ESP_SUPPLICANT
, struct wpa_ssid *ssid
#endif
)
{
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);
oce = wpas_mbo_get_bss_attr(bss, OCE_ATTR_ID_CAPA_IND);
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 */
#ifdef ESP_SUPPLICANT
if (!esp_wifi_sta_pmf_enabled())
#else
if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
#endif
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);
#ifdef ESP_SUPPLICANT
wpabuf_put_u8(mbo, MBO_CELL_CAPA_NOT_SUPPORTED);
#else
wpabuf_put_u8(mbo, wpa_s->mbo_cell_capa);
#endif
/* 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->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, 0, 0,
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));
wpabuf_free(buf);
}
#ifndef ESP_SUPPLICANT
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;
}
#else
int wpas_mbo_update_non_pref_chan(struct wpa_supplicant *wpa_s,
struct non_pref_chan_s *non_pref_chan)
{
struct wpa_mbo_non_pref_channel *chans = NULL;
/*
* The shortest channel configuration is 7 characters - 3 colons and
* 4 values.
*/
if (!non_pref_chan)
goto update;
chans = os_malloc(sizeof(struct wpa_mbo_non_pref_channel) * non_pref_chan->non_pref_chan_num);
os_memcpy(chans, non_pref_chan->chan, sizeof(struct wpa_mbo_non_pref_channel) * non_pref_chan->non_pref_chan_num);
update:
os_free(wpa_s->non_pref_chan);
wpa_s->non_pref_chan = chans;
if (non_pref_chan)
wpa_s->non_pref_chan_num = non_pref_chan->non_pref_chan_num;
else
wpa_s->non_pref_chan_num = 0;
wpas_mbo_non_pref_chan_changed(wpa_s);
return 0;
}
#endif
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);
#ifdef ESP_SUPPLICANT
wpabuf_put_u8(ie, MBO_CELL_CAPA_NOT_SUPPORTED);
#else
wpabuf_put_u8(ie, wpa_s->mbo_cell_capa);
#endif
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;
}
#ifdef ESP_SUPPLICANT
static struct
wpa_bss_tmp_disallowed * wpas_get_disallowed_bss(struct wpa_supplicant *wpa_s,
const u8 *bssid)
{
struct wpa_bss_tmp_disallowed *bss;
dl_list_for_each(bss, &wpa_s->bss_tmp_disallowed,
struct wpa_bss_tmp_disallowed, list) {
if (os_memcmp(bssid, bss->bssid, ETH_ALEN) == 0)
return bss;
}
return NULL;
}
static void wpa_bss_tmp_disallow_timeout(void *timeout_ctx, void *user_ctx)
{
struct wpa_supplicant *wpa_s = &g_wpa_supp;
struct wpa_bss_tmp_disallowed *tmp, *bss = user_ctx;
/* Make sure the bss is not already freed */
dl_list_for_each(tmp, &wpa_s->bss_tmp_disallowed,
struct wpa_bss_tmp_disallowed, list) {
if (bss == tmp) {
dl_list_del(&tmp->list);
os_free(tmp);
break;
}
}
}
void wpa_bss_tmp_disallow(struct wpa_supplicant *wpa_s, const u8 *bssid,
unsigned int sec, int rssi_threshold)
{
struct wpa_bss_tmp_disallowed *bss;
bss = wpas_get_disallowed_bss(wpa_s, bssid);
if (bss) {
eloop_cancel_timeout(wpa_bss_tmp_disallow_timeout, wpa_s, bss);
goto finish;
}
bss = os_malloc(sizeof(*bss));
if (!bss) {
wpa_printf(MSG_DEBUG,
"Failed to allocate memory for temp disallow BSS");
return;
}
os_memcpy(bss->bssid, bssid, ETH_ALEN);
dl_list_add(&wpa_s->bss_tmp_disallowed, &bss->list);
finish:
eloop_register_timeout(sec, 0, wpa_bss_tmp_disallow_timeout,
wpa_s, bss);
}
int wpa_is_bss_tmp_disallowed(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss)
{
struct wpa_bss_tmp_disallowed *disallowed = NULL, *tmp, *prev;
dl_list_for_each_safe(tmp, prev, &wpa_s->bss_tmp_disallowed,
struct wpa_bss_tmp_disallowed, list) {
if (os_memcmp(bss->bssid, tmp->bssid, ETH_ALEN) == 0) {
disallowed = tmp;
break;
}
}
if (!disallowed)
return 0;
return 1;
}
#endif
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;
#ifndef ESP_SUPPLICANT
if (wpa_s->mbo_cell_capa ==
MBO_CELL_CAPA_AVAILABLE)
cell_pref = pos;
else
#endif
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_printf(MSG_INFO, "preference=%u",
*cell_pref);
if (wpa_s->wnm_mbo_trans_reason_present)
wpa_printf(MSG_INFO, "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));
}
#ifndef ESP_SUPPLICANT
void wpas_mbo_update_cell_capa(struct wpa_supplicant *wpa_s, u8 mbo_cell_capa)
{
u8 cell_capa[7];
if (wpa_s->mbo_cell_capa == mbo_cell_capa) {
wpa_printf(MSG_DEBUG,
"MBO: Cellular capability already set to %u",
mbo_cell_capa);
return;
}
wpa_s->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);
}
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;
}
}
#endif
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