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FT: Add preliminary processing of FT Action Response from EVENT_RX_ACTION

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Previously, this was only done with userspace MLME (i.e., driver_test.c);
now, driver_nl80211.c can deliver the FT Action Response (FT-over-DS)
for processing. The reassociation after successful FT Action frame
exchange is not yet implemented.
This commit is contained in:
Jouni Malinen 2010-03-12 00:43:00 +02:00
parent 73fc617d5c
commit 036f7c4aab
1 changed files with 58 additions and 0 deletions
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58
wpa_supplicant/events.c
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@ -1506,6 +1506,50 @@ static void wpa_supplicant_event_ibss_rsn_start(struct wpa_supplicant *wpa_s,
#endif /* CONFIG_IBSS_RSN */
#ifdef CONFIG_IEEE80211R
static void ft_rx_action(struct wpa_supplicant *wpa_s, const u8 *data,
size_t len)
{
const u8 *sta_addr, *target_ap_addr;
u16 status;
wpa_hexdump(MSG_MSGDUMP, "FT: RX Action", data, len);
if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
return; /* only SME case supported for now */
if (len < 1 + 2 * ETH_ALEN + 2)
return;
if (data[0] != 2)
return; /* Only FT Action Response is supported for now */
sta_addr = data + 1;
target_ap_addr = data + 1 + ETH_ALEN;
status = WPA_GET_LE16(data + 1 + 2 * ETH_ALEN);
wpa_printf(MSG_DEBUG, "FT: Received FT Action Response: STA " MACSTR
" TargetAP " MACSTR " status %u",
MAC2STR(sta_addr), MAC2STR(target_ap_addr), status);
if (os_memcmp(sta_addr, wpa_s->own_addr, ETH_ALEN) != 0) {
wpa_printf(MSG_DEBUG, "FT: Foreign STA Address " MACSTR
" in FT Action Response", MAC2STR(sta_addr));
return;
}
if (status) {
wpa_printf(MSG_DEBUG, "FT: FT Action Response indicates "
"failure (status code %d)", status);
/* TODO: report error to FT code(?) */
return;
}
if (wpa_ft_process_response(wpa_s->wpa, data + 1 + 2 * ETH_ALEN + 2,
len - (1 + 2 * ETH_ALEN + 2), 1,
target_ap_addr, NULL, 0) < 0)
return;
/* TODO: trigger re-association with the target AP */
}
#endif /* CONFIG_IEEE80211R */
void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
union wpa_event_data *data)
{
@ -1614,6 +1658,20 @@ void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
ap_mgmt_rx(wpa_s, &data->rx_mgmt);
break;
#endif /* CONFIG_AP */
case EVENT_RX_ACTION:
wpa_printf(MSG_DEBUG, "Received Action frame: SA=" MACSTR
" Category=%u DataLen=%d freq=%d MHz",
MAC2STR(data->rx_action.sa),
data->rx_action.category, (int) data->rx_action.len,
data->rx_action.freq);
#ifdef CONFIG_IEEE80211R
if (data->rx_action.category == WLAN_ACTION_FT) {
ft_rx_action(wpa_s, data->rx_action.data,
data->rx_action.len);
break;
}
#endif /* CONFIG_IEEE80211R */
break;
#ifdef CONFIG_CLIENT_MLME
case EVENT_MLME_RX: {
struct ieee80211_rx_status rx_status;