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nl80211: Add driver multi iftype HE capability parsing

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The HE capabilities are no longer per PHY but per iftype on this
specific PHY. It is therefore no longer enough to just parse the AP
capabilities.

The he_capabilities are now duplicated to store all information for
IEEE80211_MODE_* which hostap cares about. The nl80211 driver fills in
this information when the iftype supports HE. The rest of the code still
only uses the IEEE80211_HE_AP portion but can be extended later to also
use other HE capabilities.

Signed-off-by: Sven Eckelmann <seckelmann@datto.com>
This commit is contained in:
Sven Eckelmann 2019-06-14 16:49:20 +02:00 committed by Jouni Malinen
parent f74618cb92
commit 29d8bd1dec
9 changed files with 99 additions and 52 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
src/ap/ap_drv_ops.c
View file

@ -546,14 +546,15 @@ int hostapd_set_freq(struct hostapd_data *hapd, enum hostapd_hw_mode mode,
int center_segment0, int center_segment1)
{
struct hostapd_freq_params data;
struct hostapd_hw_modes *cmode = hapd->iface->current_mode;
if (hostapd_set_freq_params(&data, mode, freq, channel, ht_enabled,
vht_enabled, he_enabled, sec_channel_offset,
oper_chwidth,
center_segment0, center_segment1,
hapd->iface->current_mode ?
hapd->iface->current_mode->vht_capab : 0,
&hapd->iface->current_mode->he_capab))
cmode ? cmode->vht_capab : 0,
cmode ?
&cmode->he_capab[IEEE80211_MODE_AP] : NULL))
return -1;
if (hapd->driver == NULL)
@ -798,8 +799,9 @@ int hostapd_start_dfs_cac(struct hostapd_iface *iface,
struct hostapd_data *hapd = iface->bss[0];
struct hostapd_freq_params data;
int res;
struct hostapd_hw_modes *cmode = iface->current_mode;
if (!hapd->driver || !hapd->driver->start_dfs_cac)
if (!hapd->driver || !hapd->driver->start_dfs_cac || !cmode)
return 0;
if (!iface->conf->ieee80211h) {
@ -812,8 +814,8 @@ int hostapd_start_dfs_cac(struct hostapd_iface *iface,
vht_enabled, he_enabled, sec_channel_offset,
oper_chwidth, center_segment0,
center_segment1,
iface->current_mode->vht_capab,
&iface->current_mode->he_capab)) {
cmode->vht_capab,
&cmode->he_capab[IEEE80211_MODE_AP])) {
wpa_printf(MSG_ERROR, "Can't set freq params");
return -1;
}

12
src/ap/beacon.c
View file

@ -510,7 +510,7 @@ static u8 * hostapd_gen_probe_resp(struct hostapd_data *hapd,
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax) {
pos = hostapd_eid_he_capab(hapd, pos);
pos = hostapd_eid_he_capab(hapd, pos, IEEE80211_MODE_AP);
pos = hostapd_eid_he_operation(hapd, pos);
pos = hostapd_eid_he_mu_edca_parameter_set(hapd, pos);
pos = hostapd_eid_spatial_reuse(hapd, pos);
@ -1226,7 +1226,8 @@ int ieee802_11_build_ap_params(struct hostapd_data *hapd,
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax) {
tailpos = hostapd_eid_he_capab(hapd, tailpos);
tailpos = hostapd_eid_he_capab(hapd, tailpos,
IEEE80211_MODE_AP);
tailpos = hostapd_eid_he_operation(hapd, tailpos);
tailpos = hostapd_eid_he_mu_edca_parameter_set(hapd, tailpos);
tailpos = hostapd_eid_spatial_reuse(hapd, tailpos);
@ -1398,6 +1399,7 @@ int ieee802_11_set_beacon(struct hostapd_data *hapd)
struct hostapd_freq_params freq;
struct hostapd_iface *iface = hapd->iface;
struct hostapd_config *iconf = iface->conf;
struct hostapd_hw_modes *cmode = iface->current_mode;
struct wpabuf *beacon, *proberesp, *assocresp;
int res, ret = -1;
@ -1421,7 +1423,7 @@ int ieee802_11_set_beacon(struct hostapd_data *hapd)
params.reenable = hapd->reenable_beacon;
hapd->reenable_beacon = 0;
if (iface->current_mode &&
if (cmode &&
hostapd_set_freq_params(&freq, iconf->hw_mode, iface->freq,
iconf->channel, iconf->ieee80211n,
iconf->ieee80211ac, iconf->ieee80211ax,
@ -1429,8 +1431,8 @@ int ieee802_11_set_beacon(struct hostapd_data *hapd)
hostapd_get_oper_chwidth(iconf),
hostapd_get_oper_centr_freq_seg0_idx(iconf),
hostapd_get_oper_centr_freq_seg1_idx(iconf),
iface->current_mode->vht_capab,
&iface->current_mode->he_capab) == 0)
cmode->vht_capab,
&cmode->he_capab[IEEE80211_MODE_AP]) == 0)
params.freq = &freq;
res = hostapd_drv_set_ap(hapd, &params);

5
src/ap/dfs.c
View file

@ -888,6 +888,7 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
struct csa_settings csa_settings;
unsigned int i;
int err = 1;
struct hostapd_hw_modes *cmode = iface->current_mode;
wpa_printf(MSG_DEBUG, "%s called (CAC active: %s, CSA active: %s)",
__func__, iface->cac_started ? "yes" : "no",
@ -966,8 +967,8 @@ static int hostapd_dfs_start_channel_switch(struct hostapd_iface *iface)
hostapd_get_oper_chwidth(iface->conf),
oper_centr_freq_seg0_idx,
oper_centr_freq_seg1_idx,
iface->current_mode->vht_capab,
&iface->current_mode->he_capab);
cmode->vht_capab,
&cmode->he_capab[IEEE80211_MODE_AP]);
if (err) {
wpa_printf(MSG_ERROR, "DFS failed to calculate CSA freq params");

3
src/ap/hostapd.c
View file

@ -3241,7 +3241,8 @@ static int hostapd_change_config_freq(struct hostapd_data *hapd,
hostapd_get_oper_centr_freq_seg0_idx(conf),
hostapd_get_oper_centr_freq_seg1_idx(conf),
conf->vht_capab,
mode ? &mode->he_capab : NULL))
mode ? &mode->he_capab[IEEE80211_MODE_AP] :
NULL))
return -1;
switch (params->bandwidth) {

5
src/ap/ieee802_11.c
View file

@ -2990,7 +2990,8 @@ static u16 check_assoc_ies(struct hostapd_data *hapd, struct sta_info *sta,
#endif /* CONFIG_IEEE80211AC */
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax) {
resp = copy_sta_he_capab(hapd, sta, elems.he_capabilities,
resp = copy_sta_he_capab(hapd, sta, IEEE80211_MODE_AP,
elems.he_capabilities,
elems.he_capabilities_len);
if (resp != WLAN_STATUS_SUCCESS)
return resp;
@ -3583,7 +3584,7 @@ static u16 send_assoc_resp(struct hostapd_data *hapd, struct sta_info *sta,
#ifdef CONFIG_IEEE80211AX
if (hapd->iconf->ieee80211ax) {
p = hostapd_eid_he_capab(hapd, p);
p = hostapd_eid_he_capab(hapd, p, IEEE80211_MODE_AP);
p = hostapd_eid_he_operation(hapd, p);
p = hostapd_eid_spatial_reuse(hapd, p);
p = hostapd_eid_he_mu_edca_parameter_set(hapd, p);

7
src/ap/ieee802_11.h
View file

@ -18,6 +18,7 @@ struct ieee80211_vht_capabilities;
struct ieee80211_mgmt;
struct vlan_description;
struct hostapd_sta_wpa_psk_short;
enum ieee80211_op_mode;
int ieee802_11_mgmt(struct hostapd_data *hapd, const u8 *buf, size_t len,
struct hostapd_frame_info *fi);
@ -57,7 +58,8 @@ u8 * hostapd_eid_vht_operation(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_vendor_vht(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_wb_chsw_wrapper(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_txpower_envelope(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid,
enum ieee80211_op_mode opmode);
u8 * hostapd_eid_he_operation(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_he_mu_edca_parameter_set(struct hostapd_data *hapd, u8 *eid);
u8 * hostapd_eid_spatial_reuse(struct hostapd_data *hapd, u8 *eid);
@ -91,7 +93,8 @@ u16 copy_sta_vht_oper(struct hostapd_data *hapd, struct sta_info *sta,
u16 set_sta_vht_opmode(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *vht_opmode);
u16 copy_sta_he_capab(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *he_capab, size_t he_capab_len);
enum ieee80211_op_mode opmode, const u8 *he_capab,
size_t he_capab_len);
void hostapd_tx_status(struct hostapd_data *hapd, const u8 *addr,
const u8 *buf, size_t len, int ack);
void hostapd_eapol_tx_status(struct hostapd_data *hapd, const u8 *dst,

27
src/ap/ieee802_11_he.c
View file

@ -44,7 +44,8 @@ static u8 ieee80211_he_ppet_size(u8 ppe_thres_hdr, const u8 *phy_cap_info)
}
u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid)
u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid,
enum ieee80211_op_mode opmode)
{
struct ieee80211_he_capabilities *cap;
struct hostapd_hw_modes *mode = hapd->iface->current_mode;
@ -56,8 +57,8 @@ u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid)
return eid;
ie_size = sizeof(struct ieee80211_he_capabilities);
ppet_size = ieee80211_he_ppet_size(mode->he_capab.ppet[0],
mode->he_capab.phy_cap);
ppet_size = ieee80211_he_ppet_size(mode->he_capab[opmode].ppet[0],
mode->he_capab[opmode].phy_cap);
switch (hapd->iface->conf->he_oper_chwidth) {
case CHANWIDTH_80P80MHZ:
@ -86,14 +87,14 @@ u8 * hostapd_eid_he_capab(struct hostapd_data *hapd, u8 *eid)
cap = (struct ieee80211_he_capabilities *) pos;
os_memset(cap, 0, sizeof(*cap));
os_memcpy(cap->he_mac_capab_info, mode->he_capab.mac_cap,
os_memcpy(cap->he_mac_capab_info, mode->he_capab[opmode].mac_cap,
HE_MAX_MAC_CAPAB_SIZE);
os_memcpy(cap->he_phy_capab_info, mode->he_capab.phy_cap,
os_memcpy(cap->he_phy_capab_info, mode->he_capab[opmode].phy_cap,
HE_MAX_PHY_CAPAB_SIZE);
os_memcpy(cap->optional, mode->he_capab.mcs, mcs_nss_size);
os_memcpy(cap->optional, mode->he_capab[opmode].mcs, mcs_nss_size);
if (ppet_size)
os_memcpy(&cap->optional[mcs_nss_size], mode->he_capab.ppet,
ppet_size);
os_memcpy(&cap->optional[mcs_nss_size],
mode->he_capab[opmode].ppet, ppet_size);
if (hapd->iface->conf->he_phy_capab.he_su_beamformer)
cap->he_phy_capab_info[HE_PHYCAP_SU_BEAMFORMER_CAPAB_IDX] |=
@ -260,7 +261,8 @@ void hostapd_get_he_capab(struct hostapd_data *hapd,
}
static int check_valid_he_mcs(struct hostapd_data *hapd, const u8 *sta_he_capab)
static int check_valid_he_mcs(struct hostapd_data *hapd, const u8 *sta_he_capab,
enum ieee80211_op_mode opmode)
{
u16 sta_rx_mcs_set, ap_tx_mcs_set;
u8 mcs_count = 0;
@ -269,7 +271,7 @@ static int check_valid_he_mcs(struct hostapd_data *hapd, const u8 *sta_he_capab)
if (!hapd->iface->current_mode)
return 1;
ap_mcs_set = (u16 *) hapd->iface->current_mode->he_capab.mcs;
ap_mcs_set = (u16 *) hapd->iface->current_mode->he_capab[opmode].mcs;
sta_mcs_set = (u16 *) ((const struct ieee80211_he_capabilities *)
sta_he_capab)->optional;
@ -318,10 +320,11 @@ static int check_valid_he_mcs(struct hostapd_data *hapd, const u8 *sta_he_capab)
u16 copy_sta_he_capab(struct hostapd_data *hapd, struct sta_info *sta,
const u8 *he_capab, size_t he_capab_len)
enum ieee80211_op_mode opmode, const u8 *he_capab,
size_t he_capab_len)
{
if (!he_capab || !hapd->iconf->ieee80211ax ||
!check_valid_he_mcs(hapd, he_capab) ||
!check_valid_he_mcs(hapd, he_capab, opmode) ||
he_capab_len > sizeof(struct ieee80211_he_capabilities)) {
sta->flags &= ~WLAN_STA_HE;
os_free(sta->he_capab);

18
src/drivers/driver.h
View file

@ -200,6 +200,17 @@ struct he_capabilities {
#define HOSTAPD_MODE_FLAG_HT_INFO_KNOWN BIT(0)
#define HOSTAPD_MODE_FLAG_VHT_INFO_KNOWN BIT(1)
enum ieee80211_op_mode {
IEEE80211_MODE_INFRA = 0,
IEEE80211_MODE_IBSS = 1,
IEEE80211_MODE_AP = 2,
IEEE80211_MODE_MESH = 5,
/* only add new entries before IEEE80211_MODE_NUM */
IEEE80211_MODE_NUM
};
/**
* struct hostapd_hw_modes - Supported hardware mode information
*/
@ -259,15 +270,10 @@ struct hostapd_hw_modes {
/**
* he_capab - HE (IEEE 802.11ax) capabilities
*/
struct he_capabilities he_capab;
struct he_capabilities he_capab[IEEE80211_MODE_NUM];
};
#define IEEE80211_MODE_INFRA 0
#define IEEE80211_MODE_IBSS 1
#define IEEE80211_MODE_AP 2
#define IEEE80211_MODE_MESH 5
#define IEEE80211_CAP_ESS 0x0001
#define IEEE80211_CAP_IBSS 0x0002
#define IEEE80211_CAP_PRIVACY 0x0010

60
src/drivers/driver_nl80211_capa.c
View file

@ -1551,26 +1551,32 @@ static int phy_info_rates(struct hostapd_hw_modes *mode, struct nlattr *tb)
}
static int phy_info_iftype(struct hostapd_hw_modes *mode,
struct nlattr *nl_iftype)
static void phy_info_iftype_copy(struct he_capabilities *he_capab,
enum ieee80211_op_mode opmode,
struct nlattr **tb, struct nlattr **tb_flags)
{
struct nlattr *tb[NL80211_BAND_IFTYPE_ATTR_MAX + 1];
struct he_capabilities *he_capab = &mode->he_capab;
struct nlattr *tb_flags[NL80211_IFTYPE_MAX + 1];
enum nl80211_iftype iftype;
size_t len;
nla_parse(tb, NL80211_BAND_IFTYPE_ATTR_MAX,
nla_data(nl_iftype), nla_len(nl_iftype), NULL);
switch (opmode) {
case IEEE80211_MODE_INFRA:
iftype = NL80211_IFTYPE_STATION;
break;
case IEEE80211_MODE_IBSS:
iftype = NL80211_IFTYPE_ADHOC;
break;
case IEEE80211_MODE_AP:
iftype = NL80211_IFTYPE_AP;
break;
case IEEE80211_MODE_MESH:
iftype = NL80211_IFTYPE_MESH_POINT;
break;
default:
return;
}
if (!tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES])
return NL_STOP;
if (nla_parse_nested(tb_flags, NL80211_IFTYPE_MAX,
tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES], NULL))
return NL_STOP;
if (!nla_get_flag(tb_flags[NL80211_IFTYPE_AP]))
return NL_OK;
if (!nla_get_flag(tb_flags[iftype]))
return;
he_capab->he_supported = 1;
@ -1613,6 +1619,28 @@ static int phy_info_iftype(struct hostapd_hw_modes *mode,
nla_data(tb[NL80211_BAND_IFTYPE_ATTR_HE_CAP_PPE]),
len);
}
}
static int phy_info_iftype(struct hostapd_hw_modes *mode,
struct nlattr *nl_iftype)
{
struct nlattr *tb[NL80211_BAND_IFTYPE_ATTR_MAX + 1];
struct nlattr *tb_flags[NL80211_IFTYPE_MAX + 1];
unsigned int i;
nla_parse(tb, NL80211_BAND_IFTYPE_ATTR_MAX,
nla_data(nl_iftype), nla_len(nl_iftype), NULL);
if (!tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES])
return NL_STOP;
if (nla_parse_nested(tb_flags, NL80211_IFTYPE_MAX,
tb[NL80211_BAND_IFTYPE_ATTR_IFTYPES], NULL))
return NL_STOP;
for (i = 0; i < IEEE80211_MODE_NUM; i++)
phy_info_iftype_copy(&mode->he_capab[i], i, tb, tb_flags);
return NL_OK;
}