#include "includes.h"
#include "common.h"
+#include "utils/eloop.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#include "eapol_supp/eapol_supp_sm.h"
params.wpa_ie = wpa_s->sme.assoc_req_ie_len ?
wpa_s->sme.assoc_req_ie : NULL;
params.wpa_ie_len = wpa_s->sme.assoc_req_ie_len;
+ params.pairwise_suite = cipher_suite2driver(wpa_s->pairwise_cipher);
+ params.group_suite = cipher_suite2driver(wpa_s->group_cipher);
#ifdef CONFIG_IEEE80211R
if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
params.wpa_ie = wpa_s->sme.ft_ies;
WLAN_REASON_DEAUTH_LEAVING);
}
}
+
+
+#ifdef CONFIG_IEEE80211W
+
+static const unsigned int sa_query_max_timeout = 1000;
+static const unsigned int sa_query_retry_timeout = 201;
+
+static int sme_check_sa_query_timeout(struct wpa_supplicant *wpa_s)
+{
+ u32 tu;
+ struct os_time now, passed;
+ os_get_time(&now);
+ os_time_sub(&now, &wpa_s->sme.sa_query_start, &passed);
+ tu = (passed.sec * 1000000 + passed.usec) / 1024;
+ if (sa_query_max_timeout < tu) {
+ wpa_printf(MSG_DEBUG, "SME: SA Query timed out");
+ sme_stop_sa_query(wpa_s);
+ wpa_supplicant_deauthenticate(
+ wpa_s, WLAN_REASON_PREV_AUTH_NOT_VALID);
+ return 1;
+ }
+
+ return 0;
+}
+
+
+static void sme_send_sa_query_req(struct wpa_supplicant *wpa_s,
+ const u8 *trans_id)
+{
+ u8 req[2 + WLAN_SA_QUERY_TR_ID_LEN];
+ wpa_printf(MSG_DEBUG, "SME: Sending SA Query Request to "
+ MACSTR, MAC2STR(wpa_s->bssid));
+ wpa_hexdump(MSG_DEBUG, "SME: SA Query Transaction ID",
+ trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+ req[0] = WLAN_ACTION_SA_QUERY;
+ req[1] = WLAN_SA_QUERY_REQUEST;
+ os_memcpy(req + 2, trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+ if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, wpa_s->bssid,
+ wpa_s->own_addr, wpa_s->bssid,
+ req, sizeof(req)) < 0)
+ wpa_printf(MSG_INFO, "SME: Failed to send SA Query Request");
+}
+
+
+static void sme_sa_query_timer(void *eloop_ctx, void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ unsigned int timeout, sec, usec;
+ u8 *trans_id, *nbuf;
+
+ if (wpa_s->sme.sa_query_count > 0 &&
+ sme_check_sa_query_timeout(wpa_s))
+ return;
+
+ nbuf = os_realloc(wpa_s->sme.sa_query_trans_id,
+ (wpa_s->sme.sa_query_count + 1) *
+ WLAN_SA_QUERY_TR_ID_LEN);
+ if (nbuf == NULL)
+ return;
+ if (wpa_s->sme.sa_query_count == 0) {
+ /* Starting a new SA Query procedure */
+ os_get_time(&wpa_s->sme.sa_query_start);
+ }
+ trans_id = nbuf + wpa_s->sme.sa_query_count * WLAN_SA_QUERY_TR_ID_LEN;
+ wpa_s->sme.sa_query_trans_id = nbuf;
+ wpa_s->sme.sa_query_count++;
+
+ os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN);
+
+ timeout = sa_query_retry_timeout;
+ sec = ((timeout / 1000) * 1024) / 1000;
+ usec = (timeout % 1000) * 1024;
+ eloop_register_timeout(sec, usec, sme_sa_query_timer, wpa_s, NULL);
+
+ wpa_printf(MSG_DEBUG, "SME: Association SA Query attempt %d",
+ wpa_s->sme.sa_query_count);
+
+ sme_send_sa_query_req(wpa_s, trans_id);
+}
+
+
+static void sme_start_sa_query(struct wpa_supplicant *wpa_s)
+{
+ sme_sa_query_timer(wpa_s, NULL);
+}
+
+
+void sme_stop_sa_query(struct wpa_supplicant *wpa_s)
+{
+ eloop_cancel_timeout(sme_sa_query_timer, wpa_s, NULL);
+ os_free(wpa_s->sme.sa_query_trans_id);
+ wpa_s->sme.sa_query_trans_id = NULL;
+ wpa_s->sme.sa_query_count = 0;
+}
+
+
+void sme_event_unprot_disconnect(struct wpa_supplicant *wpa_s, const u8 *sa,
+ const u8 *da, u16 reason_code)
+{
+ struct wpa_ssid *ssid;
+
+ if (!(wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME))
+ return;
+ if (wpa_s->wpa_state != WPA_COMPLETED)
+ return;
+ ssid = wpa_s->current_ssid;
+ if (ssid == NULL || ssid->ieee80211w == 0)
+ return;
+ if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
+ return;
+ if (reason_code != WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA &&
+ reason_code != WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA)
+ return;
+ if (wpa_s->sme.sa_query_count > 0)
+ return;
+
+ wpa_printf(MSG_DEBUG, "SME: Unprotected disconnect dropped - possible "
+ "AP/STA state mismatch - trigger SA Query");
+ sme_start_sa_query(wpa_s);
+}
+
+
+void sme_sa_query_rx(struct wpa_supplicant *wpa_s, const u8 *sa,
+ const u8 *data, size_t len)
+{
+ int i;
+
+ if (wpa_s->sme.sa_query_trans_id == NULL ||
+ len < 1 + WLAN_SA_QUERY_TR_ID_LEN ||
+ data[0] != WLAN_SA_QUERY_RESPONSE)
+ return;
+ wpa_printf(MSG_DEBUG, "SME: Received SA Query response from " MACSTR
+ " (trans_id %02x%02x)",
+ MAC2STR(sa), data[1], data[2]);
+
+ if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
+ return;
+
+ for (i = 0; i < wpa_s->sme.sa_query_count; i++) {
+ if (os_memcmp(wpa_s->sme.sa_query_trans_id +
+ i * WLAN_SA_QUERY_TR_ID_LEN,
+ data + 1, WLAN_SA_QUERY_TR_ID_LEN) == 0)
+ break;
+ }
+
+ if (i >= wpa_s->sme.sa_query_count) {
+ wpa_printf(MSG_DEBUG, "SME: No matching SA Query "
+ "transaction identifier found");
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "SME: Reply to pending SA Query received from "
+ MACSTR, MAC2STR(sa));
+ sme_stop_sa_query(wpa_s);
+}
+
+#endif /* CONFIG_IEEE80211W */
projects / mech_eap.git / blobdiff