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Add Non EHT SCS Capability in (Re)Association Request frames

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Set WFA capability to allow non-EHT SCS Traffic support in association
elements when the AP advertises support for non-EHT SCS Traffic support
via Beacon or Probe Response frame. This capability is upper layer
functionality and as such, does not need a separate driver capability
indication or configuration, but indicate this only if the AP supports
the feature to minimize risk of interoperability issues with a new
information element.

Signed-off-by: Purushottam Kushwaha <quic_pkushwah@quicinc.com>
This commit is contained in:
Purushottam Kushwaha 2023-04-18 19:54:09 +05:30 • committed by Jouni Malinen
parent 12154861e2
commit c437665041
3 changed files with 29 additions and 0 deletions
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1
src/common/ieee802_11_defs.h
View file

@ -2857,6 +2857,7 @@ enum dscp_policy_request_type {
/* Wi-Fi Alliance Capabilities element - Capabilities field */ /* Wi-Fi Alliance Capabilities element - Capabilities field */
#define WFA_CAPA_QM_DSCP_POLICY BIT(0) #define WFA_CAPA_QM_DSCP_POLICY BIT(0)
#define WFA_CAPA_QM_UNSOLIC_DSCP BIT(1) #define WFA_CAPA_QM_UNSOLIC_DSCP BIT(1)
#define WFA_CAPA_QM_NON_EHT_SCS_TRAFFIC_DESC BIT(2)
struct ieee80211_neighbor_ap_info { struct ieee80211_neighbor_ap_info {
u8 tbtt_info_hdr; u8 tbtt_info_hdr;

26
wpa_supplicant/wpa_supplicant.c
View file

@ -3173,6 +3173,29 @@ int wpa_is_fils_sk_pfs_supported(struct wpa_supplicant *wpa_s)
#endif /* CONFIG_FILS */ #endif /* CONFIG_FILS */
bool wpa_is_non_eht_scs_traffic_desc_supported(struct wpa_bss *bss)
{
const u8 *wfa_capa;
if (!bss)
return false;
/* Get WFA capability from Beacon or Probe Response frame elements */
wfa_capa = wpa_bss_get_vendor_ie(bss, WFA_CAPA_IE_VENDOR_TYPE);
if (!wfa_capa)
wfa_capa = wpa_bss_get_vendor_ie_beacon(
bss, WFA_CAPA_IE_VENDOR_TYPE);
if (!wfa_capa || wfa_capa[1] < 6 || wfa_capa[6] < 1 ||
!(wfa_capa[7] & WFA_CAPA_QM_NON_EHT_SCS_TRAFFIC_DESC)) {
/* AP does not enable QM non EHT traffic description policy */
return false;
}
return true;
}
static int wpas_populate_wfa_capa(struct wpa_supplicant *wpa_s, static int wpas_populate_wfa_capa(struct wpa_supplicant *wpa_s,
struct wpa_bss *bss, struct wpa_bss *bss,
u8 *wpa_ie, size_t wpa_ie_len, u8 *wpa_ie, size_t wpa_ie_len,
@ -3186,6 +3209,9 @@ static int wpas_populate_wfa_capa(struct wpa_supplicant *wpa_s,
if (wpa_s->enable_dscp_policy_capa) if (wpa_s->enable_dscp_policy_capa)
wfa_capa[0] |= WFA_CAPA_QM_DSCP_POLICY; wfa_capa[0] |= WFA_CAPA_QM_DSCP_POLICY;
if (wpa_is_non_eht_scs_traffic_desc_supported(bss))
wfa_capa[0] |= WFA_CAPA_QM_NON_EHT_SCS_TRAFFIC_DESC;
if (!wfa_capa[0]) if (!wfa_capa[0])
return wpa_ie_len; return wpa_ie_len;

2
wpa_supplicant/wpa_supplicant_i.h
View file

@ -1918,4 +1918,6 @@ void wpas_pasn_auth_trigger(struct wpa_supplicant *wpa_s,
struct pasn_auth *pasn_auth); struct pasn_auth *pasn_auth);
void wpas_pasn_auth_work_done(struct wpa_supplicant *wpa_s, int status); void wpas_pasn_auth_work_done(struct wpa_supplicant *wpa_s, int status);
bool wpa_is_non_eht_scs_traffic_desc_supported(struct wpa_bss *bss);
#endif /* WPA_SUPPLICANT_I_H */ #endif /* WPA_SUPPLICANT_I_H */