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Send RM Enabled Capabilities element in (Re)Association Response frame

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(Re)Association Response frames should include radio measurement
capabilities in order to let stations know if they can, e.g., use
neighbor requests.

I tested this commit with a Samsung S8, which does not send neighbor
requests without this commit and sends them afterwards.

Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de>
This commit is contained in:
Markus Theil 2020-01-24 17:24:53 +01:00 committed by Jouni Malinen
parent 23dc196fde
commit 96a2a9a88b
3 changed files with 26 additions and 21 deletions
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21
src/ap/beacon.c
View file

@ -36,27 +36,6 @@
#ifdef NEED_AP_MLME
static u8 * hostapd_eid_rm_enabled_capab(struct hostapd_data *hapd, u8 *eid,
size_t len)
{
size_t i;
for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) {
if (hapd->conf->radio_measurements[i])
break;
}
if (i == RRM_CAPABILITIES_IE_LEN || len < 2 + RRM_CAPABILITIES_IE_LEN)
return eid;
*eid++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
*eid++ = RRM_CAPABILITIES_IE_LEN;
os_memcpy(eid, hapd->conf->radio_measurements, RRM_CAPABILITIES_IE_LEN);
return eid + RRM_CAPABILITIES_IE_LEN;
}
static u8 * hostapd_eid_bss_load(struct hostapd_data *hapd, u8 *eid, size_t len)
{
if (len < 2 + 5)

24
src/ap/ieee802_11.c
View file

@ -199,6 +199,27 @@ u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid)
}
u8 * hostapd_eid_rm_enabled_capab(struct hostapd_data *hapd, u8 *eid,
size_t len)
{
size_t i;
for (i = 0; i < RRM_CAPABILITIES_IE_LEN; i++) {
if (hapd->conf->radio_measurements[i])
break;
}
if (i == RRM_CAPABILITIES_IE_LEN || len < 2 + RRM_CAPABILITIES_IE_LEN)
return eid;
*eid++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
*eid++ = RRM_CAPABILITIES_IE_LEN;
os_memcpy(eid, hapd->conf->radio_measurements, RRM_CAPABILITIES_IE_LEN);
return eid + RRM_CAPABILITIES_IE_LEN;
}
u16 hostapd_own_capab_info(struct hostapd_data *hapd)
{
int capab = WLAN_CAPABILITY_ESS;
@ -3684,6 +3705,9 @@ static u16 send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta,
/* Extended supported rates */
p = hostapd_eid_ext_supp_rates(hapd, p);
/* Radio measurement capabilities */
p = hostapd_eid_rm_enabled_capab(hapd, p, buf + buflen - p);
#ifdef CONFIG_MBO
if (status_code == WLAN_STATUS_DENIED_POOR_CHANNEL_CONDITIONS &&
rssi != 0) {

2
src/ap/ieee802_11.h
View file

@ -49,6 +49,8 @@ u8 * hostapd_eid_ext_capab(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_qos_map_set(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_ext_supp_rates(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_rm_enabled_capab(struct hostapd_data *hapd, u8 *eid,
size_t len);
u8 * hostapd_eid_ht_capabilities(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_ht_operation(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_secondary_channel(struct hostapd_data *hapd, u8 *eid);