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hostapd/src/ap/ieee802_11_shared.c
Jouni Malinen 661e661186 OCV: Allow OCI channel to be overridden for testing (AP) 
Add hostapd configuration parameters oci_freq_override_* to allow the
OCI channel information to be overridden for various frames for testing
purposes. This can be set in the configuration and also updated during
the runtime of a BSS.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-05-30 00:04:53 +03:00

1100 lines
27 KiB
C
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/*
* hostapd / IEEE 802.11 Management
* Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
*
* 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/ocv.h"
#include "common/wpa_ctrl.h"
#include "hostapd.h"
#include "sta_info.h"
#include "ap_config.h"
#include "ap_drv_ops.h"
#include "wpa_auth.h"
#include "ieee802_11.h"
u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
struct sta_info *sta, u8 *eid)
{
u8 *pos = eid;
u32 timeout, tu;
struct os_reltime now, passed;
*pos++ = WLAN_EID_TIMEOUT_INTERVAL;
*pos++ = 5;
*pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK;
os_get_reltime(&now);
os_reltime_sub(&now, &sta->sa_query_start, &passed);
tu = (passed.sec * 1000000 + passed.usec) / 1024;
if (hapd->conf->assoc_sa_query_max_timeout > tu)
timeout = hapd->conf->assoc_sa_query_max_timeout - tu;
else
timeout = 0;
if (timeout < hapd->conf->assoc_sa_query_max_timeout)
timeout++; /* add some extra time for local timers */
WPA_PUT_LE32(pos, timeout);
pos += 4;
return pos;
}
/* MLME-SAQuery.request */
void ieee802_11_send_sa_query_req(struct hostapd_data *hapd,
const u8 *addr, const u8 *trans_id)
{
#ifdef CONFIG_OCV
struct sta_info *sta;
#endif /* CONFIG_OCV */
struct ieee80211_mgmt *mgmt;
u8 *oci_ie = NULL;
u8 oci_ie_len = 0;
u8 *end;
wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Request to "
MACSTR, MAC2STR(addr));
wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
trans_id, WLAN_SA_QUERY_TR_ID_LEN);
#ifdef CONFIG_OCV
sta = ap_get_sta(hapd, addr);
if (sta && wpa_auth_uses_ocv(sta->wpa_sm)) {
struct wpa_channel_info ci;
if (hostapd_drv_channel_info(hapd, &ci) != 0) {
wpa_printf(MSG_WARNING,
"Failed to get channel info for OCI element in SA Query Request");
return;
}
#ifdef CONFIG_TESTING_OPTIONS
if (hapd->conf->oci_freq_override_saquery_req) {
wpa_printf(MSG_INFO,
"TEST: Override OCI frequency %d -> %u MHz",
ci.frequency,
hapd->conf->oci_freq_override_saquery_req);
ci.frequency =
hapd->conf->oci_freq_override_saquery_req;
}
#endif /* CONFIG_TESTING_OPTIONS */
oci_ie_len = OCV_OCI_EXTENDED_LEN;
oci_ie = os_zalloc(oci_ie_len);
if (!oci_ie) {
wpa_printf(MSG_WARNING,
"Failed to allocate buffer for OCI element in SA Query Request");
return;
}
if (ocv_insert_extended_oci(&ci, oci_ie) < 0) {
os_free(oci_ie);
return;
}
}
#endif /* CONFIG_OCV */
mgmt = os_zalloc(sizeof(*mgmt) + oci_ie_len);
if (!mgmt) {
wpa_printf(MSG_DEBUG,
"Failed to allocate buffer for SA Query Response frame");
os_free(oci_ie);
return;
}
mgmt->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_ACTION);
os_memcpy(mgmt->da, addr, ETH_ALEN);
os_memcpy(mgmt->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
mgmt->u.action.category = WLAN_ACTION_SA_QUERY;
mgmt->u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST;
os_memcpy(mgmt->u.action.u.sa_query_req.trans_id, trans_id,
WLAN_SA_QUERY_TR_ID_LEN);
end = mgmt->u.action.u.sa_query_req.variable;
#ifdef CONFIG_OCV
if (oci_ie_len > 0) {
os_memcpy(end, oci_ie, oci_ie_len);
end += oci_ie_len;
}
#endif /* CONFIG_OCV */
if (hostapd_drv_send_mlme(hapd, mgmt, end - (u8 *) mgmt, 0, NULL, 0, 0)
< 0)
wpa_printf(MSG_INFO, "ieee802_11_send_sa_query_req: send failed");
os_free(mgmt);
os_free(oci_ie);
}
static void ieee802_11_send_sa_query_resp(struct hostapd_data *hapd,
const u8 *sa, const u8 *trans_id)
{
struct sta_info *sta;
struct ieee80211_mgmt *resp;
u8 *oci_ie = NULL;
u8 oci_ie_len = 0;
u8 *end;
wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Request from "
MACSTR, MAC2STR(sa));
wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
trans_id, WLAN_SA_QUERY_TR_ID_LEN);
sta = ap_get_sta(hapd, sa);
if (sta == NULL || !(sta->flags & WLAN_STA_ASSOC)) {
wpa_printf(MSG_DEBUG, "IEEE 802.11: Ignore SA Query Request "
"from unassociated STA " MACSTR, MAC2STR(sa));
return;
}
#ifdef CONFIG_OCV
if (wpa_auth_uses_ocv(sta->wpa_sm)) {
struct wpa_channel_info ci;
if (hostapd_drv_channel_info(hapd, &ci) != 0) {
wpa_printf(MSG_WARNING,
"Failed to get channel info for OCI element in SA Query Response");
return;
}
#ifdef CONFIG_TESTING_OPTIONS
if (hapd->conf->oci_freq_override_saquery_resp) {
wpa_printf(MSG_INFO,
"TEST: Override OCI frequency %d -> %u MHz",
ci.frequency,
hapd->conf->oci_freq_override_saquery_resp);
ci.frequency =
hapd->conf->oci_freq_override_saquery_resp;
}
#endif /* CONFIG_TESTING_OPTIONS */
oci_ie_len = OCV_OCI_EXTENDED_LEN;
oci_ie = os_zalloc(oci_ie_len);
if (!oci_ie) {
wpa_printf(MSG_WARNING,
"Failed to allocate buffer for for OCI element in SA Query Response");
return;
}
if (ocv_insert_extended_oci(&ci, oci_ie) < 0) {
os_free(oci_ie);
return;
}
}
#endif /* CONFIG_OCV */
resp = os_zalloc(sizeof(*resp) + oci_ie_len);
if (!resp) {
wpa_printf(MSG_DEBUG,
"Failed to allocate buffer for SA Query Response frame");
os_free(oci_ie);
return;
}
wpa_printf(MSG_DEBUG, "IEEE 802.11: Sending SA Query Response to "
MACSTR, MAC2STR(sa));
resp->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
WLAN_FC_STYPE_ACTION);
os_memcpy(resp->da, sa, ETH_ALEN);
os_memcpy(resp->sa, hapd->own_addr, ETH_ALEN);
os_memcpy(resp->bssid, hapd->own_addr, ETH_ALEN);
resp->u.action.category = WLAN_ACTION_SA_QUERY;
resp->u.action.u.sa_query_req.action = WLAN_SA_QUERY_RESPONSE;
os_memcpy(resp->u.action.u.sa_query_req.trans_id, trans_id,
WLAN_SA_QUERY_TR_ID_LEN);
end = resp->u.action.u.sa_query_req.variable;
#ifdef CONFIG_OCV
if (oci_ie_len > 0) {
os_memcpy(end, oci_ie, oci_ie_len);
end += oci_ie_len;
}
#endif /* CONFIG_OCV */
if (hostapd_drv_send_mlme(hapd, resp, end - (u8 *) resp, 0, NULL, 0, 0)
< 0)
wpa_printf(MSG_INFO, "ieee80211_mgmt_sa_query_request: send failed");
os_free(resp);
os_free(oci_ie);
}
void ieee802_11_sa_query_action(struct hostapd_data *hapd,
const struct ieee80211_mgmt *mgmt,
size_t len)
{
struct sta_info *sta;
int i;
const u8 *sa = mgmt->sa;
const u8 action_type = mgmt->u.action.u.sa_query_resp.action;
const u8 *trans_id = mgmt->u.action.u.sa_query_resp.trans_id;
if (((const u8 *) mgmt) + len <
mgmt->u.action.u.sa_query_resp.variable) {
wpa_printf(MSG_DEBUG,
"IEEE 802.11: Too short SA Query Action frame (len=%lu)",
(unsigned long) len);
return;
}
sta = ap_get_sta(hapd, sa);
#ifdef CONFIG_OCV
if (sta && wpa_auth_uses_ocv(sta->wpa_sm)) {
struct ieee802_11_elems elems;
struct wpa_channel_info ci;
int tx_chanwidth;
int tx_seg1_idx;
size_t ies_len;
const u8 *ies;
ies = mgmt->u.action.u.sa_query_resp.variable;
ies_len = len - (ies - (u8 *) mgmt);
if (ieee802_11_parse_elems(ies, ies_len, &elems, 1) ==
ParseFailed) {
wpa_printf(MSG_DEBUG,
"SA Query: Failed to parse elements");
return;
}
if (hostapd_drv_channel_info(hapd, &ci) != 0) {
wpa_printf(MSG_WARNING,
"Failed to get channel info to validate received OCI in SA Query Action frame");
return;
}
if (get_sta_tx_parameters(sta->wpa_sm,
channel_width_to_int(ci.chanwidth),
ci.seg1_idx, &tx_chanwidth,
&tx_seg1_idx) < 0)
return;
if (ocv_verify_tx_params(elems.oci, elems.oci_len, &ci,
tx_chanwidth, tx_seg1_idx) != 0) {
wpa_msg(hapd->msg_ctx, MSG_INFO, OCV_FAILURE "addr="
MACSTR " frame=saquery%s error=%s",
MAC2STR(sa),
action_type == WLAN_SA_QUERY_REQUEST ?
"req" : "resp", ocv_errorstr);
return;
}
}
#endif /* CONFIG_OCV */
if (action_type == WLAN_SA_QUERY_REQUEST) {
if (sta)
sta->post_csa_sa_query = 0;
ieee802_11_send_sa_query_resp(hapd, sa, trans_id);
return;
}
if (action_type != WLAN_SA_QUERY_RESPONSE) {
wpa_printf(MSG_DEBUG, "IEEE 802.11: Unexpected SA Query "
"Action %d", action_type);
return;
}
wpa_printf(MSG_DEBUG, "IEEE 802.11: Received SA Query Response from "
MACSTR, MAC2STR(sa));
wpa_hexdump(MSG_DEBUG, "IEEE 802.11: SA Query Transaction ID",
trans_id, WLAN_SA_QUERY_TR_ID_LEN);
/* MLME-SAQuery.confirm */
if (sta == NULL || sta->sa_query_trans_id == NULL) {
wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching STA with "
"pending SA Query request found");
return;
}
for (i = 0; i < sta->sa_query_count; i++) {
if (os_memcmp(sta->sa_query_trans_id +
i * WLAN_SA_QUERY_TR_ID_LEN,
trans_id, WLAN_SA_QUERY_TR_ID_LEN) == 0)
break;
}
if (i >= sta->sa_query_count) {
wpa_printf(MSG_DEBUG, "IEEE 802.11: No matching SA Query "
"transaction identifier found");
return;
}
hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
HOSTAPD_LEVEL_DEBUG,
"Reply to pending SA Query received");
ap_sta_stop_sa_query(hapd, sta);
}
static void hostapd_ext_capab_byte(struct hostapd_data *hapd, u8 *pos, int idx)
{
*pos = 0x00;
switch (idx) {
case 0: /* Bits 0-7 */
if (hapd->iconf->obss_interval)
*pos |= 0x01; /* Bit 0 - Coexistence management */
if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)
*pos |= 0x04; /* Bit 2 - Extended Channel Switching */
break;
case 1: /* Bits 8-15 */
if (hapd->conf->proxy_arp)
*pos |= 0x10; /* Bit 12 - Proxy ARP */
if (hapd->conf->coloc_intf_reporting) {
/* Bit 13 - Collocated Interference Reporting */
*pos |= 0x20;
}
break;
case 2: /* Bits 16-23 */
if (hapd->conf->wnm_sleep_mode)
*pos |= 0x02; /* Bit 17 - WNM-Sleep Mode */
if (hapd->conf->bss_transition)
*pos |= 0x08; /* Bit 19 - BSS Transition */
break;
case 3: /* Bits 24-31 */
#ifdef CONFIG_WNM_AP
*pos |= 0x02; /* Bit 25 - SSID List */
#endif /* CONFIG_WNM_AP */
if (hapd->conf->time_advertisement == 2)
*pos |= 0x08; /* Bit 27 - UTC TSF Offset */
if (hapd->conf->interworking)
*pos |= 0x80; /* Bit 31 - Interworking */
break;
case 4: /* Bits 32-39 */
if (hapd->conf->qos_map_set_len)
*pos |= 0x01; /* Bit 32 - QoS Map */
if (hapd->conf->tdls & TDLS_PROHIBIT)
*pos |= 0x40; /* Bit 38 - TDLS Prohibited */
if (hapd->conf->tdls & TDLS_PROHIBIT_CHAN_SWITCH) {
/* Bit 39 - TDLS Channel Switching Prohibited */
*pos |= 0x80;
}
break;
case 5: /* Bits 40-47 */
#ifdef CONFIG_HS20
if (hapd->conf->hs20)
*pos |= 0x40; /* Bit 46 - WNM-Notification */
#endif /* CONFIG_HS20 */
#ifdef CONFIG_MBO
if (hapd->conf->mbo_enabled)
*pos |= 0x40; /* Bit 46 - WNM-Notification */
#endif /* CONFIG_MBO */
break;
case 6: /* Bits 48-55 */
if (hapd->conf->ssid.utf8_ssid)
*pos |= 0x01; /* Bit 48 - UTF-8 SSID */
break;
case 7: /* Bits 56-63 */
break;
case 8: /* Bits 64-71 */
if (hapd->conf->ftm_responder)
*pos |= 0x40; /* Bit 70 - FTM responder */
if (hapd->conf->ftm_initiator)
*pos |= 0x80; /* Bit 71 - FTM initiator */
break;
case 9: /* Bits 72-79 */
#ifdef CONFIG_FILS
if ((hapd->conf->wpa & WPA_PROTO_RSN) &&
wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt))
*pos |= 0x01;
#endif /* CONFIG_FILS */
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax &&
hostapd_get_he_twt_responder(hapd, IEEE80211_MODE_AP))
*pos |= 0x40; /* Bit 78 - TWT responder */
#endif /* CONFIG_IEEE80211AX */
break;
case 10: /* Bits 80-87 */
#ifdef CONFIG_SAE
if (hapd->conf->wpa &&
wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt)) {
int in_use = hostapd_sae_pw_id_in_use(hapd->conf);
if (in_use)
*pos |= 0x02; /* Bit 81 - SAE Password
* Identifiers In Use */
if (in_use == 2)
*pos |= 0x04; /* Bit 82 - SAE Password
* Identifiers Used Exclusively */
}
#endif /* CONFIG_SAE */
if (hapd->conf->beacon_prot)
*pos |= 0x10; /* Bit 84 - Beacon Protection Enabled */
break;
}
}
u8 * hostapd_eid_ext_capab(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
u8 len = 0, i;
if (hapd->conf->qos_map_set_len ||
(hapd->conf->tdls & (TDLS_PROHIBIT | TDLS_PROHIBIT_CHAN_SWITCH)))
len = 5;
if (len < 4 &&
(hapd->conf->time_advertisement == 2 || hapd->conf->interworking))
len = 4;
if (len < 3 &&
(hapd->conf->wnm_sleep_mode || hapd->conf->bss_transition))
len = 3;
if (len < 1 &&
(hapd->iconf->obss_interval ||
(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_CSA)))
len = 1;
if (len < 2 &&
(hapd->conf->proxy_arp || hapd->conf->coloc_intf_reporting))
len = 2;
if (len < 7 && hapd->conf->ssid.utf8_ssid)
len = 7;
if (len < 9 &&
(hapd->conf->ftm_initiator || hapd->conf->ftm_responder))
len = 9;
#ifdef CONFIG_WNM_AP
if (len < 4)
len = 4;
#endif /* CONFIG_WNM_AP */
#ifdef CONFIG_HS20
if (hapd->conf->hs20 && len < 6)
len = 6;
#endif /* CONFIG_HS20 */
#ifdef CONFIG_MBO
if (hapd->conf->mbo_enabled && len < 6)
len = 6;
#endif /* CONFIG_MBO */
#ifdef CONFIG_FILS
if ((!(hapd->conf->wpa & WPA_PROTO_RSN) ||
!wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt)) && len < 10)
len = 10;
#endif /* CONFIG_FILS */
#ifdef CONFIG_IEEE80211AX
if (len < 10 && hapd->iconf->ieee80211ax &&
hostapd_get_he_twt_responder(hapd, IEEE80211_MODE_AP))
len = 10;
#endif /* CONFIG_IEEE80211AX */
#ifdef CONFIG_SAE
if (len < 11 && hapd->conf->wpa &&
wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) &&
hostapd_sae_pw_id_in_use(hapd->conf))
len = 11;
#endif /* CONFIG_SAE */
if (len < 11 && hapd->conf->beacon_prot)
len = 11;
if (len < hapd->iface->extended_capa_len)
len = hapd->iface->extended_capa_len;
if (len == 0)
return eid;
*pos++ = WLAN_EID_EXT_CAPAB;
*pos++ = len;
for (i = 0; i < len; i++, pos++) {
hostapd_ext_capab_byte(hapd, pos, i);
if (i < hapd->iface->extended_capa_len) {
*pos &= ~hapd->iface->extended_capa_mask[i];
*pos |= hapd->iface->extended_capa[i];
}
}
while (len > 0 && eid[1 + len] == 0) {
len--;
eid[1] = len;
}
if (len == 0)
return eid;
return eid + 2 + len;
}
u8 * hostapd_eid_qos_map_set(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
u8 len = hapd->conf->qos_map_set_len;
if (!len)
return eid;
*pos++ = WLAN_EID_QOS_MAP_SET;
*pos++ = len;
os_memcpy(pos, hapd->conf->qos_map_set, len);
pos += len;
return pos;
}
u8 * hostapd_eid_interworking(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
#ifdef CONFIG_INTERWORKING
u8 *len;
if (!hapd->conf->interworking)
return eid;
*pos++ = WLAN_EID_INTERWORKING;
len = pos++;
*pos = hapd->conf->access_network_type;
if (hapd->conf->internet)
*pos |= INTERWORKING_ANO_INTERNET;
if (hapd->conf->asra)
*pos |= INTERWORKING_ANO_ASRA;
if (hapd->conf->esr)
*pos |= INTERWORKING_ANO_ESR;
if (hapd->conf->uesa)
*pos |= INTERWORKING_ANO_UESA;
pos++;
if (hapd->conf->venue_info_set) {
*pos++ = hapd->conf->venue_group;
*pos++ = hapd->conf->venue_type;
}
if (!is_zero_ether_addr(hapd->conf->hessid)) {
os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
pos += ETH_ALEN;
}
*len = pos - len - 1;
#endif /* CONFIG_INTERWORKING */
return pos;
}
u8 * hostapd_eid_adv_proto(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
#ifdef CONFIG_INTERWORKING
/* TODO: Separate configuration for ANQP? */
if (!hapd->conf->interworking)
return eid;
*pos++ = WLAN_EID_ADV_PROTO;
*pos++ = 2;
*pos++ = 0x7F; /* Query Response Length Limit | PAME-BI */
*pos++ = ACCESS_NETWORK_QUERY_PROTOCOL;
#endif /* CONFIG_INTERWORKING */
return pos;
}
u8 * hostapd_eid_roaming_consortium(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
#ifdef CONFIG_INTERWORKING
u8 *len;
unsigned int i, count;
if (!hapd->conf->interworking ||
hapd->conf->roaming_consortium == NULL ||
hapd->conf->roaming_consortium_count == 0)
return eid;
*pos++ = WLAN_EID_ROAMING_CONSORTIUM;
len = pos++;
/* Number of ANQP OIs (in addition to the max 3 listed here) */
if (hapd->conf->roaming_consortium_count > 3 + 255)
*pos++ = 255;
else if (hapd->conf->roaming_consortium_count > 3)
*pos++ = hapd->conf->roaming_consortium_count - 3;
else
*pos++ = 0;
/* OU #1 and #2 Lengths */
*pos = hapd->conf->roaming_consortium[0].len;
if (hapd->conf->roaming_consortium_count > 1)
*pos |= hapd->conf->roaming_consortium[1].len << 4;
pos++;
if (hapd->conf->roaming_consortium_count > 3)
count = 3;
else
count = hapd->conf->roaming_consortium_count;
for (i = 0; i < count; i++) {
os_memcpy(pos, hapd->conf->roaming_consortium[i].oi,
hapd->conf->roaming_consortium[i].len);
pos += hapd->conf->roaming_consortium[i].len;
}
*len = pos - len - 1;
#endif /* CONFIG_INTERWORKING */
return pos;
}
u8 * hostapd_eid_time_adv(struct hostapd_data *hapd, u8 *eid)
{
if (hapd->conf->time_advertisement != 2)
return eid;
if (hapd->time_adv == NULL &&
hostapd_update_time_adv(hapd) < 0)
return eid;
if (hapd->time_adv == NULL)
return eid;
os_memcpy(eid, wpabuf_head(hapd->time_adv),
wpabuf_len(hapd->time_adv));
eid += wpabuf_len(hapd->time_adv);
return eid;
}
u8 * hostapd_eid_time_zone(struct hostapd_data *hapd, u8 *eid)
{
size_t len;
if (hapd->conf->time_advertisement != 2 || !hapd->conf->time_zone)
return eid;
len = os_strlen(hapd->conf->time_zone);
*eid++ = WLAN_EID_TIME_ZONE;
*eid++ = len;
os_memcpy(eid, hapd->conf->time_zone, len);
eid += len;
return eid;
}
int hostapd_update_time_adv(struct hostapd_data *hapd)
{
const int elen = 2 + 1 + 10 + 5 + 1;
struct os_time t;
struct os_tm tm;
u8 *pos;
if (hapd->conf->time_advertisement != 2)
return 0;
if (os_get_time(&t) < 0 || os_gmtime(t.sec, &tm) < 0)
return -1;
if (!hapd->time_adv) {
hapd->time_adv = wpabuf_alloc(elen);
if (hapd->time_adv == NULL)
return -1;
pos = wpabuf_put(hapd->time_adv, elen);
} else
pos = wpabuf_mhead_u8(hapd->time_adv);
*pos++ = WLAN_EID_TIME_ADVERTISEMENT;
*pos++ = 1 + 10 + 5 + 1;
*pos++ = 2; /* UTC time at which the TSF timer is 0 */
/* Time Value at TSF 0 */
/* FIX: need to calculate this based on the current TSF value */
WPA_PUT_LE16(pos, tm.year); /* Year */
pos += 2;
*pos++ = tm.month; /* Month */
*pos++ = tm.day; /* Day of month */
*pos++ = tm.hour; /* Hours */
*pos++ = tm.min; /* Minutes */
*pos++ = tm.sec; /* Seconds */
WPA_PUT_LE16(pos, 0); /* Milliseconds (not used) */
pos += 2;
*pos++ = 0; /* Reserved */
/* Time Error */
/* TODO: fill in an estimate on the error */
*pos++ = 0;
*pos++ = 0;
*pos++ = 0;
*pos++ = 0;
*pos++ = 0;
*pos++ = hapd->time_update_counter++;
return 0;
}
u8 * hostapd_eid_bss_max_idle_period(struct hostapd_data *hapd, u8 *eid)
{
u8 *pos = eid;
#ifdef CONFIG_WNM_AP
if (hapd->conf->ap_max_inactivity > 0) {
unsigned int val;
*pos++ = WLAN_EID_BSS_MAX_IDLE_PERIOD;
*pos++ = 3;
val = hapd->conf->ap_max_inactivity;
if (val > 68000)
val = 68000;
val *= 1000;
val /= 1024;
if (val == 0)
val = 1;
if (val > 65535)
val = 65535;
WPA_PUT_LE16(pos, val);
pos += 2;
*pos++ = 0x00; /* TODO: Protected Keep-Alive Required */
}
#endif /* CONFIG_WNM_AP */
return pos;
}
#ifdef CONFIG_MBO
u8 * hostapd_eid_mbo_rssi_assoc_rej(struct hostapd_data *hapd, u8 *eid,
size_t len, int delta)
{
u8 mbo[4];
mbo[0] = OCE_ATTR_ID_RSSI_BASED_ASSOC_REJECT;
mbo[1] = 2;
/* Delta RSSI */
mbo[2] = delta;
/* Retry delay */
mbo[3] = hapd->iconf->rssi_reject_assoc_timeout;
return eid + mbo_add_ie(eid, len, mbo, 4);
}
u8 * hostapd_eid_mbo(struct hostapd_data *hapd, u8 *eid, size_t len)
{
u8 mbo[9], *mbo_pos = mbo;
u8 *pos = eid;
if (!hapd->conf->mbo_enabled &&
!OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd))
return eid;
if (hapd->conf->mbo_enabled) {
*mbo_pos++ = MBO_ATTR_ID_AP_CAPA_IND;
*mbo_pos++ = 1;
/* Not Cellular aware */
*mbo_pos++ = 0;
}
if (hapd->conf->mbo_enabled && hapd->mbo_assoc_disallow) {
*mbo_pos++ = MBO_ATTR_ID_ASSOC_DISALLOW;
*mbo_pos++ = 1;
*mbo_pos++ = hapd->mbo_assoc_disallow;
}
if (OCE_STA_CFON_ENABLED(hapd) || OCE_AP_ENABLED(hapd)) {
u8 ctrl;
ctrl = OCE_RELEASE;
if (OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd))
ctrl |= OCE_IS_STA_CFON;
*mbo_pos++ = OCE_ATTR_ID_CAPA_IND;
*mbo_pos++ = 1;
*mbo_pos++ = ctrl;
}
pos += mbo_add_ie(pos, len, mbo, mbo_pos - mbo);
return pos;
}
u8 hostapd_mbo_ie_len(struct hostapd_data *hapd)
{
u8 len;
if (!hapd->conf->mbo_enabled &&
!OCE_STA_CFON_ENABLED(hapd) && !OCE_AP_ENABLED(hapd))
return 0;
/*
* MBO IE header (6) + Capability Indication attribute (3) +
* Association Disallowed attribute (3) = 12
*/
len = 6;
if (hapd->conf->mbo_enabled)
len += 3 + (hapd->mbo_assoc_disallow ? 3 : 0);
/* OCE capability indication attribute (3) */
if (OCE_STA_CFON_ENABLED(hapd) || OCE_AP_ENABLED(hapd))
len += 3;
return len;
}
#endif /* CONFIG_MBO */
#ifdef CONFIG_OWE
static int hostapd_eid_owe_trans_enabled(struct hostapd_data *hapd)
{
return hapd->conf->owe_transition_ssid_len > 0 &&
!is_zero_ether_addr(hapd->conf->owe_transition_bssid);
}
#endif /* CONFIG_OWE */
size_t hostapd_eid_owe_trans_len(struct hostapd_data *hapd)
{
#ifdef CONFIG_OWE
if (!hostapd_eid_owe_trans_enabled(hapd))
return 0;
return 6 + ETH_ALEN + 1 + hapd->conf->owe_transition_ssid_len;
#else /* CONFIG_OWE */
return 0;
#endif /* CONFIG_OWE */
}
u8 * hostapd_eid_owe_trans(struct hostapd_data *hapd, u8 *eid,
size_t len)
{
#ifdef CONFIG_OWE
u8 *pos = eid;
size_t elen;
if (hapd->conf->owe_transition_ifname[0] &&
!hostapd_eid_owe_trans_enabled(hapd))
hostapd_owe_trans_get_info(hapd);
if (!hostapd_eid_owe_trans_enabled(hapd))
return pos;
elen = hostapd_eid_owe_trans_len(hapd);
if (len < elen) {
wpa_printf(MSG_DEBUG,
"OWE: Not enough room in the buffer for OWE IE");
return pos;
}
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = elen - 2;
WPA_PUT_BE24(pos, OUI_WFA);
pos += 3;
*pos++ = OWE_OUI_TYPE;
os_memcpy(pos, hapd->conf->owe_transition_bssid, ETH_ALEN);
pos += ETH_ALEN;
*pos++ = hapd->conf->owe_transition_ssid_len;
os_memcpy(pos, hapd->conf->owe_transition_ssid,
hapd->conf->owe_transition_ssid_len);
pos += hapd->conf->owe_transition_ssid_len;
return pos;
#else /* CONFIG_OWE */
return eid;
#endif /* CONFIG_OWE */
}
size_t hostapd_eid_dpp_cc_len(struct hostapd_data *hapd)
{
#ifdef CONFIG_DPP2
if (hapd->conf->dpp_configurator_connectivity)
return 6;
#endif /* CONFIG_DPP2 */
return 0;
}
u8 * hostapd_eid_dpp_cc(struct hostapd_data *hapd, u8 *eid, size_t len)
{
u8 *pos = eid;
#ifdef CONFIG_DPP2
if (!hapd->conf->dpp_configurator_connectivity || len < 6)
return pos;
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 4;
WPA_PUT_BE24(pos, OUI_WFA);
pos += 3;
*pos++ = DPP_CC_OUI_TYPE;
#endif /* CONFIG_DPP2 */
return pos;
}
void ap_copy_sta_supp_op_classes(struct sta_info *sta,
const u8 *supp_op_classes,
size_t supp_op_classes_len)
{
if (!supp_op_classes)
return;
os_free(sta->supp_op_classes);
sta->supp_op_classes = os_malloc(1 + supp_op_classes_len);
if (!sta->supp_op_classes)
return;
sta->supp_op_classes[0] = supp_op_classes_len;
os_memcpy(sta->supp_op_classes + 1, supp_op_classes,
supp_op_classes_len);
}
u8 * hostapd_eid_fils_indic(struct hostapd_data *hapd, u8 *eid, int hessid)
{
u8 *pos = eid;
#ifdef CONFIG_FILS
u8 *len;
u16 fils_info = 0;
size_t realms;
struct fils_realm *realm;
if (!(hapd->conf->wpa & WPA_PROTO_RSN) ||
!wpa_key_mgmt_fils(hapd->conf->wpa_key_mgmt))
return pos;
realms = dl_list_len(&hapd->conf->fils_realms);
if (realms > 7)
realms = 7; /* 3 bit count field limits this to max 7 */
*pos++ = WLAN_EID_FILS_INDICATION;
len = pos++;
/* TODO: B0..B2: Number of Public Key Identifiers */
if (hapd->conf->erp_domain) {
/* B3..B5: Number of Realm Identifiers */
fils_info |= realms << 3;
}
/* TODO: B6: FILS IP Address Configuration */
if (hapd->conf->fils_cache_id_set)
fils_info |= BIT(7);
if (hessid && !is_zero_ether_addr(hapd->conf->hessid))
fils_info |= BIT(8); /* HESSID Included */
/* FILS Shared Key Authentication without PFS Supported */
fils_info |= BIT(9);
if (hapd->conf->fils_dh_group) {
/* FILS Shared Key Authentication with PFS Supported */
fils_info |= BIT(10);
}
/* TODO: B11: FILS Public Key Authentication Supported */
/* B12..B15: Reserved */
WPA_PUT_LE16(pos, fils_info);
pos += 2;
if (hapd->conf->fils_cache_id_set) {
os_memcpy(pos, hapd->conf->fils_cache_id, FILS_CACHE_ID_LEN);
pos += FILS_CACHE_ID_LEN;
}
if (hessid && !is_zero_ether_addr(hapd->conf->hessid)) {
os_memcpy(pos, hapd->conf->hessid, ETH_ALEN);
pos += ETH_ALEN;
}
dl_list_for_each(realm, &hapd->conf->fils_realms, struct fils_realm,
list) {
if (realms == 0)
break;
realms--;
os_memcpy(pos, realm->hash, 2);
pos += 2;
}
*len = pos - len - 1;
#endif /* CONFIG_FILS */
return pos;
}
#ifdef CONFIG_OCV
int get_tx_parameters(struct sta_info *sta, int ap_max_chanwidth,
int ap_seg1_idx, int *bandwidth, int *seg1_idx)
{
int ht_40mhz = 0;
int vht_80p80 = 0;
int requested_bw;
if (sta->ht_capabilities)
ht_40mhz = !!(sta->ht_capabilities->ht_capabilities_info &
HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET);
if (sta->vht_operation) {
struct ieee80211_vht_operation *oper = sta->vht_operation;
/*
* If a VHT Operation element was present, use it to determine
* the supported channel bandwidth.
*/
if (oper->vht_op_info_chwidth == 0) {
requested_bw = ht_40mhz ? 40 : 20;
} else if (oper->vht_op_info_chan_center_freq_seg1_idx == 0) {
requested_bw = 80;
} else {
int diff;
requested_bw = 160;
diff = abs((int)
oper->vht_op_info_chan_center_freq_seg0_idx -
(int)
oper->vht_op_info_chan_center_freq_seg1_idx);
vht_80p80 = oper->vht_op_info_chan_center_freq_seg1_idx
!= 0 && diff > 16;
}
} else if (sta->vht_capabilities) {
struct ieee80211_vht_capabilities *capab;
int vht_chanwidth;
capab = sta->vht_capabilities;
/*
* If only the VHT Capabilities element is present (e.g., for
* normal clients), use it to determine the supported channel
* bandwidth.
*/
vht_chanwidth = capab->vht_capabilities_info &
VHT_CAP_SUPP_CHAN_WIDTH_MASK;
vht_80p80 = capab->vht_capabilities_info &
VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
/* TODO: Also take into account Extended NSS BW Support field */
requested_bw = vht_chanwidth ? 160 : 80;
} else {
requested_bw = ht_40mhz ? 40 : 20;
}
*bandwidth = requested_bw < ap_max_chanwidth ?
requested_bw : ap_max_chanwidth;
*seg1_idx = 0;
if (ap_seg1_idx && vht_80p80)
*seg1_idx = ap_seg1_idx;
return 0;
}
#endif /* CONFIG_OCV */
u8 * hostapd_eid_rsnxe(struct hostapd_data *hapd, u8 *eid, size_t len)
{
u8 *pos = eid;
if (!(hapd->conf->wpa & WPA_PROTO_RSN) ||
!wpa_key_mgmt_sae(hapd->conf->wpa_key_mgmt) ||
(hapd->conf->sae_pwe != 1 && hapd->conf->sae_pwe != 2 &&
!hostapd_sae_pw_id_in_use(hapd->conf)) ||
hapd->conf->sae_pwe == 3 ||
len < 3)
return pos;
*pos++ = WLAN_EID_RSNX;
*pos++ = 1;
/* bits 0-3 = 0 since only one octet of Extended RSN Capabilities is
* used for now */
*pos++ = BIT(WLAN_RSNX_CAPAB_SAE_H2E);
return pos;
}
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