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wpa_supplicant: Allow overriding HT STBC capabilities

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Allow user to override STBC configuration for Rx and Tx spatial streams.
Add new configuration options to test for HT capability overrides.

Signed-off-by: Sergey Matyukevich <sergey.matyukevich.os@quantenna.com>
This commit is contained in:
Sergey Matyukevich 2018-10-30 13:16:47 +00:00 committed by Jouni Malinen
parent 43d174b8e2
commit cdeea70f59
6 changed files with 93 additions and 1 deletions
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4
wpa_supplicant/config.c
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@ -2331,6 +2331,8 @@ static const struct parse_data ssid_fields[] = {
{ INT_RANGE(disable_sgi, 0, 1) },
{ INT_RANGE(disable_ldpc, 0, 1) },
{ INT_RANGE(ht40_intolerant, 0, 1) },
{ INT_RANGE(tx_stbc, -1, 1) },
{ INT_RANGE(rx_stbc, -1, 3) },
{ INT_RANGE(disable_max_amsdu, -1, 1) },
{ INT_RANGE(ampdu_factor, -1, 3) },
{ INT_RANGE(ampdu_density, -1, 7) },
@ -2851,6 +2853,8 @@ void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
ssid->disable_sgi = DEFAULT_DISABLE_SGI;
ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
ssid->tx_stbc = DEFAULT_TX_STBC;
ssid->rx_stbc = DEFAULT_RX_STBC;
ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;

2
wpa_supplicant/config_file.c
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@ -895,6 +895,8 @@ static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
INT(ht40_intolerant);
INT_DEF(tx_stbc, DEFAULT_TX_STBC);
INT_DEF(rx_stbc, DEFAULT_RX_STBC);
INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);

18
wpa_supplicant/config_ssid.h
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@ -33,6 +33,8 @@
#define DEFAULT_DISABLE_HT40 0
#define DEFAULT_DISABLE_SGI 0
#define DEFAULT_DISABLE_LDPC 0
#define DEFAULT_TX_STBC -1 /* no change */
#define DEFAULT_RX_STBC -1 /* no change */
#define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
#define DEFAULT_AMPDU_FACTOR -1 /* no change */
#define DEFAULT_AMPDU_DENSITY -1 /* no change */
@ -693,6 +695,22 @@ struct wpa_ssid {
* By default (empty string): Use whatever the OS has configured.
*/
char *ht_mcs;
/**
* tx_stbc - Indicate STBC support for TX streams
*
* Value: -1..1, by default (-1): use whatever the OS or card has
* configured. See IEEE Std 802.11-2016, 9.4.2.56.2.
*/
int tx_stbc;
/**
* rx_stbc - Indicate STBC support for RX streams
*
* Value: -1..3, by default (-1): use whatever the OS or card has
* configured. See IEEE Std 802.11-2016, 9.4.2.56.2.
*/
int rx_stbc;
#endif /* CONFIG_HT_OVERRIDES */
#ifdef CONFIG_VHT_OVERRIDES

2
wpa_supplicant/wpa_cli.c
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@ -1412,7 +1412,7 @@ static const char *network_fields[] = {
#ifdef CONFIG_HT_OVERRIDES
"disable_ht", "disable_ht40", "disable_sgi", "disable_ldpc",
"ht40_intolerant", "disable_max_amsdu", "ampdu_factor",
"ampdu_density", "ht_mcs",
"ampdu_density", "ht_mcs", "rx_stbc", "tx_stbc",
#endif /* CONFIG_HT_OVERRIDES */
#ifdef CONFIG_VHT_OVERRIDES
"disable_vht", "vht_capa", "vht_capa_mask", "vht_rx_mcs_nss_1",

54
wpa_supplicant/wpa_supplicant.c
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@ -4511,6 +4511,58 @@ static int wpa_set_disable_ldpc(struct wpa_supplicant *wpa_s,
}
static int wpa_set_tx_stbc(struct wpa_supplicant *wpa_s,
struct ieee80211_ht_capabilities *htcaps,
struct ieee80211_ht_capabilities *htcaps_mask,
int tx_stbc)
{
le16 msk = host_to_le16(HT_CAP_INFO_TX_STBC);
wpa_msg(wpa_s, MSG_DEBUG, "set_tx_stbc: %d", tx_stbc);
if (tx_stbc == -1)
return 0;
if (tx_stbc < 0 || tx_stbc > 1) {
wpa_msg(wpa_s, MSG_ERROR,
"tx_stbc: %d out of range. Must be 0-1 or -1", tx_stbc);
return -EINVAL;
}
htcaps_mask->ht_capabilities_info |= msk;
htcaps->ht_capabilities_info &= ~msk;
htcaps->ht_capabilities_info |= (tx_stbc << 7) & msk;
return 0;
}
static int wpa_set_rx_stbc(struct wpa_supplicant *wpa_s,
struct ieee80211_ht_capabilities *htcaps,
struct ieee80211_ht_capabilities *htcaps_mask,
int rx_stbc)
{
le16 msk = host_to_le16(HT_CAP_INFO_RX_STBC_MASK);
wpa_msg(wpa_s, MSG_DEBUG, "set_rx_stbc: %d", rx_stbc);
if (rx_stbc == -1)
return 0;
if (rx_stbc < 0 || rx_stbc > 3) {
wpa_msg(wpa_s, MSG_ERROR,
"rx_stbc: %d out of range. Must be 0-3 or -1", rx_stbc);
return -EINVAL;
}
htcaps_mask->ht_capabilities_info |= msk;
htcaps->ht_capabilities_info &= ~msk;
htcaps->ht_capabilities_info |= (rx_stbc << 8) & msk;
return 0;
}
void wpa_supplicant_apply_ht_overrides(
struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid,
struct wpa_driver_associate_params *params)
@ -4535,6 +4587,8 @@ void wpa_supplicant_apply_ht_overrides(
wpa_set_disable_ht40(wpa_s, htcaps, htcaps_mask, ssid->disable_ht40);
wpa_set_disable_sgi(wpa_s, htcaps, htcaps_mask, ssid->disable_sgi);
wpa_set_disable_ldpc(wpa_s, htcaps, htcaps_mask, ssid->disable_ldpc);
wpa_set_rx_stbc(wpa_s, htcaps, htcaps_mask, ssid->rx_stbc);
wpa_set_tx_stbc(wpa_s, htcaps, htcaps_mask, ssid->tx_stbc);
if (ssid->ht40_intolerant) {
le16 bit = host_to_le16(HT_CAP_INFO_40MHZ_INTOLERANT);

14
wpa_supplicant/wpa_supplicant.conf
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@ -1388,6 +1388,20 @@ fast_reauth=1
# Treated as hint by the kernel.
# -1 = Do not make any changes.
# 0-3 = Set AMPDU density (aka factor) to specified value.
#
# tx_stbc: Allow overriding STBC support for TX streams
# Value: 0-1, see IEEE Std 802.11-2016, 9.4.2.56.2.
# -1 = Do not make any changes (default)
# 0 = Set if not supported
# 1 = Set if supported
#
# rx_stbc: Allow overriding STBC support for RX streams
# Value: 0-3, see IEEE Std 802.11-2016, 9.4.2.56.2.
# -1 = Do not make any changes (default)
# 0 = Set if not supported
# 1 = Set for support of one spatial stream
# 2 = Set for support of one and two spatial streams
# 3 = Set for support of one, two and three spatial streams
# disable_vht: Whether VHT should be disabled.
# 0 = VHT enabled (if AP supports it)