3869c159d9
The current code will always use the size required when all optional elements are present. This will cause the Linux kernel to consider the field to be malformed if the elements are not actually flagged as being present. Signed-off-by: Shashidhar Lakkavalli <slakkavalli@datto.com> Signed-off-by: John Crispin <john@phrozen.org>
169 lines
4.2 KiB
C
169 lines
4.2 KiB
C
/*
|
|
* hostapd / IEEE 802.11ax HE
|
|
* Copyright (c) 2016-2017, Qualcomm Atheros, Inc.
|
|
*
|
|
* 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 "hostapd.h"
|
|
#include "ap_config.h"
|
|
#include "beacon.h"
|
|
#include "ieee802_11.h"
|
|
#include "dfs.h"
|
|
|
|
u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid)
|
|
{
|
|
struct ieee80211_he_capabilities *cap;
|
|
struct hostapd_hw_modes *mode = hapd->iface->current_mode;
|
|
u8 *pos = eid;
|
|
|
|
if (!mode)
|
|
return eid;
|
|
|
|
*pos++ = WLAN_EID_EXTENSION;
|
|
*pos++ = 1 + sizeof(struct ieee80211_he_capabilities);
|
|
*pos++ = WLAN_EID_EXT_HE_CAPABILITIES;
|
|
|
|
cap = (struct ieee80211_he_capabilities *) pos;
|
|
os_memset(cap, 0, sizeof(*cap));
|
|
|
|
os_memcpy(cap->he_mac_capab_info, mode->he_capab.mac_cap,
|
|
HE_MAX_MAC_CAPAB_SIZE);
|
|
os_memcpy(cap->he_phy_capab_info, mode->he_capab.phy_cap,
|
|
HE_MAX_PHY_CAPAB_SIZE);
|
|
os_memcpy(cap->he_txrx_mcs_support, mode->he_capab.mcs,
|
|
HE_MAX_MCS_CAPAB_SIZE);
|
|
|
|
if (hapd->iface->conf->he_phy_capab.he_su_beamformer)
|
|
cap->he_phy_capab_info[HE_PHYCAP_SU_BEAMFORMER_CAPAB_IDX] |=
|
|
HE_PHYCAP_SU_BEAMFORMER_CAPAB;
|
|
|
|
if (hapd->iface->conf->he_phy_capab.he_su_beamformee)
|
|
cap->he_phy_capab_info[HE_PHYCAP_SU_BEAMFORMEE_CAPAB_IDX] |=
|
|
HE_PHYCAP_SU_BEAMFORMEE_CAPAB;
|
|
|
|
if (hapd->iface->conf->he_phy_capab.he_mu_beamformer)
|
|
cap->he_phy_capab_info[HE_PHYCAP_MU_BEAMFORMER_CAPAB_IDX] |=
|
|
HE_PHYCAP_MU_BEAMFORMER_CAPAB;
|
|
|
|
pos += sizeof(*cap);
|
|
|
|
return pos;
|
|
}
|
|
|
|
|
|
u8 * hostapd_eid_he_operation(struct hostapd_data *hapd, u8 *eid)
|
|
{
|
|
struct ieee80211_he_operation *oper;
|
|
u8 *pos = eid;
|
|
int oper_size = 6;
|
|
|
|
if (!hapd->iface->current_mode)
|
|
return eid;
|
|
|
|
*pos++ = WLAN_EID_EXTENSION;
|
|
*pos++ = 1 + oper_size;
|
|
*pos++ = WLAN_EID_EXT_HE_OPERATION;
|
|
|
|
oper = (struct ieee80211_he_operation *) pos;
|
|
os_memset(oper, 0, sizeof(*oper));
|
|
|
|
if (hapd->iface->conf->he_op.he_default_pe_duration)
|
|
oper->he_oper_params |=
|
|
(hapd->iface->conf->he_op.he_default_pe_duration <<
|
|
HE_OPERATION_DFLT_PE_DURATION_OFFSET);
|
|
|
|
if (hapd->iface->conf->he_op.he_twt_required)
|
|
oper->he_oper_params |= HE_OPERATION_TWT_REQUIRED;
|
|
|
|
if (hapd->iface->conf->he_op.he_rts_threshold)
|
|
oper->he_oper_params |=
|
|
(hapd->iface->conf->he_op.he_rts_threshold <<
|
|
HE_OPERATION_RTS_THRESHOLD_OFFSET);
|
|
|
|
if (hapd->iface->conf->he_op.he_bss_color)
|
|
oper->he_oper_params |=
|
|
(hapd->iface->conf->he_op.he_bss_color <<
|
|
HE_OPERATION_BSS_COLOR_OFFSET);
|
|
|
|
/* TODO: conditional MaxBSSID Indicator subfield */
|
|
|
|
pos += oper_size;
|
|
|
|
return pos;
|
|
}
|
|
|
|
|
|
u8 * hostapd_eid_he_mu_edca_parameter_set(struct hostapd_data *hapd, u8 *eid)
|
|
{
|
|
struct ieee80211_he_mu_edca_parameter_set *edca;
|
|
u8 *pos;
|
|
size_t i;
|
|
|
|
pos = (u8 *) &hapd->iface->conf->he_mu_edca;
|
|
for (i = 0; i < sizeof(*edca); i++) {
|
|
if (pos[i])
|
|
break;
|
|
}
|
|
if (i == sizeof(*edca))
|
|
return eid; /* no MU EDCA Parameters configured */
|
|
|
|
pos = eid;
|
|
*pos++ = WLAN_EID_EXTENSION;
|
|
*pos++ = 1 + sizeof(*edca);
|
|
*pos++ = WLAN_EID_EXT_HE_MU_EDCA_PARAMS;
|
|
|
|
edca = (struct ieee80211_he_mu_edca_parameter_set *) pos;
|
|
os_memcpy(edca, &hapd->iface->conf->he_mu_edca, sizeof(*edca));
|
|
|
|
wpa_hexdump(MSG_DEBUG, "HE: MU EDCA Parameter Set element",
|
|
pos, sizeof(*edca));
|
|
|
|
pos += sizeof(*edca);
|
|
|
|
return pos;
|
|
}
|
|
|
|
|
|
u8 * hostapd_eid_spatial_reuse(struct hostapd_data *hapd, u8 *eid)
|
|
{
|
|
struct ieee80211_spatial_reuse *spr;
|
|
u8 *pos = eid, *spr_param;
|
|
u8 sz = 1;
|
|
|
|
if (hapd->iface->conf->spr.sr_control &
|
|
SPATIAL_REUSE_NON_SRG_OFFSET_PRESENT)
|
|
sz++;
|
|
|
|
if (hapd->iface->conf->spr.sr_control &
|
|
SPATIAL_REUSE_SRG_INFORMATION_PRESENT)
|
|
sz += 18;
|
|
|
|
*pos++ = WLAN_EID_EXTENSION;
|
|
*pos++ = 1 + sz;
|
|
*pos++ = WLAN_EID_EXT_SPATIAL_REUSE;
|
|
|
|
spr = (struct ieee80211_spatial_reuse *) pos;
|
|
os_memset(spr, 0, sizeof(*spr));
|
|
|
|
spr->sr_ctrl = hapd->iface->conf->spr.sr_control;
|
|
pos++;
|
|
spr_param = spr->params;
|
|
if (spr->sr_ctrl & SPATIAL_REUSE_NON_SRG_OFFSET_PRESENT) {
|
|
*spr_param++ =
|
|
hapd->iface->conf->spr.non_srg_obss_pd_max_offset;
|
|
pos++;
|
|
}
|
|
if (spr->sr_ctrl & SPATIAL_REUSE_SRG_INFORMATION_PRESENT) {
|
|
*spr_param++ = hapd->iface->conf->spr.srg_obss_pd_min_offset;
|
|
*spr_param++ = hapd->iface->conf->spr.srg_obss_pd_max_offset;
|
|
pos += 18;
|
|
}
|
|
|
|
return pos;
|
|
}
|