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MSCS: Add support to process MSCS Response frames

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Add support to receive and process MSCS Response frames from the AP and
indicate the status to upper layers.

Signed-off-by: Vinita S. Maloo <vmaloo@codeaurora.org>
This commit is contained in:
Vinita S. Maloo 2020-06-03 20:54:04 +05:30 committed by Jouni Malinen
parent a118047245
commit bbd3178af4
5 changed files with 39 additions and 0 deletions
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2
src/common/wpa_ctrl.h
View file

@ -126,6 +126,8 @@ extern "C" {
#define WPA_EVENT_FREQ_CONFLICT "CTRL-EVENT-FREQ-CONFLICT "
/** Frequency ranges that the driver recommends to avoid */
#define WPA_EVENT_AVOID_FREQ "CTRL-EVENT-AVOID-FREQ "
/** Result of MSCS setup */
#define WPA_EVENT_MSCS_RESULT "CTRL-EVENT-MSCS-RESULT "
/** WPS overlap detected in PBC mode */
#define WPS_EVENT_OVERLAP "WPS-OVERLAP-DETECTED "
/** Available WPS AP with active PBC found in scan results */

4
src/drivers/driver_nl80211.c
View file

@ -2451,6 +2451,10 @@ static int nl80211_mgmt_subscribe_non_ap(struct i802_bss *bss)
(nl80211_register_action_frame(bss, (u8 *) "\x05\x02", 2) < 0))
ret = -1;
/* Robust AV MSCS Response */
if (nl80211_register_action_frame(bss, (u8 *) "\x13\x05", 2) < 0)
ret = -1;
nl80211_mgmt_handle_register_eloop(bss);
return ret;

7
wpa_supplicant/events.c
View file

@ -4245,6 +4245,13 @@ static void wpas_event_rx_mgmt_action(struct wpa_supplicant *wpa_s,
}
#endif /* CONFIG_DPP */
if (category == WLAN_ACTION_ROBUST_AV_STREAMING &&
payload[0] == ROBUST_AV_MSCS_RESP) {
wpas_handle_robust_av_recv_action(wpa_s, mgmt->sa,
payload + 1, plen - 1);
return;
}
wpas_p2p_rx_action(wpa_s, mgmt->da, mgmt->sa, mgmt->bssid,
category, payload, plen, freq);
if (wpa_s->ifmsh)

23
wpa_supplicant/robust_av.c
View file

@ -96,3 +96,26 @@ int wpas_send_mscs_req(struct wpa_supplicant *wpa_s)
wpabuf_free(buf);
return ret;
}
void wpas_handle_robust_av_recv_action(struct wpa_supplicant *wpa_s,
const u8 *src, const u8 *buf, size_t len)
{
u8 dialog_token;
u16 status_code;
if (len < 3)
return;
dialog_token = *buf++;
if (dialog_token != wpa_s->robust_av.dialog_token) {
wpa_printf(MSG_INFO,
"MSCS: Drop received frame due to dialog token mismatch: received:%u expected:%u",
dialog_token, wpa_s->robust_av.dialog_token);
return;
}
status_code = *buf;
wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_MSCS_RESULT "bssid=" MACSTR
" status_code=%u", MAC2STR(src), status_code);
}

3
wpa_supplicant/wpa_supplicant_i.h
View file

@ -1638,5 +1638,8 @@ void wpas_clear_driver_signal_override(struct wpa_supplicant *wpa_s);
int wpas_send_mscs_req(struct wpa_supplicant *wpa_s);
void wpas_populate_mscs_descriptor_ie(struct robust_av_data *robust_av,
struct wpabuf *buf);
void wpas_handle_robust_av_recv_action(struct wpa_supplicant *wpa_s,
const u8 *src, const u8 *buf,
size_t len);
#endif /* WPA_SUPPLICANT_I_H */