wpa_auth: Clean up pointer dereferences

Use local variables to avoid sm->wpa_auth->conf type of dereferences
where multiple instances within a function can be cleaned up.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2020-03-28 19:29:12 +02:00
parent bbf94a0958
commit 62e12afcf1

View file

@ -745,23 +745,26 @@ static void wpa_free_sta_sm(struct wpa_state_machine *sm)
void wpa_auth_sta_deinit(struct wpa_state_machine *sm)
{
struct wpa_authenticator *wpa_auth;
if (sm == NULL)
return;
if (sm->wpa_auth->conf.wpa_strict_rekey && sm->has_GTK) {
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_DEBUG,
wpa_auth = sm->wpa_auth;
if (wpa_auth->conf.wpa_strict_rekey && sm->has_GTK) {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_DEBUG,
"strict rekeying - force GTK rekey since STA "
"is leaving");
if (eloop_deplete_timeout(0, 500000, wpa_rekey_gtk,
sm->wpa_auth, NULL) == -1)
eloop_register_timeout(0, 500000, wpa_rekey_gtk, sm->wpa_auth,
NULL);
wpa_auth, NULL) == -1)
eloop_register_timeout(0, 500000, wpa_rekey_gtk,
wpa_auth, NULL);
}
eloop_cancel_timeout(wpa_send_eapol_timeout, sm->wpa_auth, sm);
eloop_cancel_timeout(wpa_send_eapol_timeout, wpa_auth, sm);
sm->pending_1_of_4_timeout = 0;
eloop_cancel_timeout(wpa_sm_call_step, sm, NULL);
eloop_cancel_timeout(wpa_rekey_ptk, sm->wpa_auth, sm);
eloop_cancel_timeout(wpa_rekey_ptk, wpa_auth, sm);
#ifdef CONFIG_IEEE80211R_AP
wpa_ft_sta_deinit(sm);
#endif /* CONFIG_IEEE80211R_AP */
@ -1472,6 +1475,7 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
const u8 *kde, size_t kde_len,
int keyidx, int encr, int force_version)
{
struct wpa_auth_config *conf = &wpa_auth->conf;
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
size_t len, mic_len, keyhdrlen;
@ -1528,7 +1532,7 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
hdr = os_zalloc(len);
if (hdr == NULL)
return;
hdr->version = wpa_auth->conf.eapol_version;
hdr->version = conf->eapol_version;
hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
hdr->length = host_to_be16(len - sizeof(*hdr));
key = (struct wpa_eapol_key *) (hdr + 1);
@ -1544,7 +1548,7 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
key_info |= keyidx << WPA_KEY_INFO_KEY_INDEX_SHIFT;
WPA_PUT_BE16(key->key_info, key_info);
alg = pairwise ? sm->pairwise : wpa_auth->conf.wpa_group;
alg = pairwise ? sm->pairwise : conf->wpa_group;
if (sm->wpa == WPA_VERSION_WPA2 && !pairwise)
WPA_PUT_BE16(key->key_length, 0);
else
@ -1664,9 +1668,8 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
}
#ifdef CONFIG_TESTING_OPTIONS
if (!pairwise &&
wpa_auth->conf.corrupt_gtk_rekey_mic_probability > 0.0 &&
drand48() <
wpa_auth->conf.corrupt_gtk_rekey_mic_probability) {
conf->corrupt_gtk_rekey_mic_probability > 0.0 &&
drand48() < conf->corrupt_gtk_rekey_mic_probability) {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
"Corrupting group EAPOL-Key Key MIC");
key_mic[0]++;
@ -1674,8 +1677,7 @@ void __wpa_send_eapol(struct wpa_authenticator *wpa_auth,
#endif /* CONFIG_TESTING_OPTIONS */
}
wpa_auth_set_eapol(sm->wpa_auth, sm->addr, WPA_EAPOL_inc_EapolFramesTx,
1);
wpa_auth_set_eapol(wpa_auth, sm->addr, WPA_EAPOL_inc_EapolFramesTx, 1);
wpa_auth_send_eapol(wpa_auth, sm->addr, (u8 *) hdr, len,
sm->pairwise_set);
os_free(hdr);
@ -2747,8 +2749,7 @@ static struct wpabuf * fils_prepare_plainbuf(struct wpa_state_machine *sm,
/* GTK KDE */
gtk = gsm->GTK[gsm->GN - 1];
gtk_len = gsm->GTK_len;
if (sm->wpa_auth->conf.disable_gtk ||
sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
if (conf->disable_gtk || sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
/*
* Provide unique random GTK to each STA to prevent use
* of GTK in the BSS.
@ -3172,7 +3173,8 @@ static u8 * ieee80211w_kde_add(struct wpa_state_machine *sm, u8 *pos)
struct wpa_bigtk_kde bigtk;
struct wpa_group *gsm = sm->group;
u8 rsc[WPA_KEY_RSC_LEN];
size_t len = wpa_cipher_key_len(sm->wpa_auth->conf.group_mgmt_cipher);
struct wpa_auth_config *conf = &sm->wpa_auth->conf;
size_t len = wpa_cipher_key_len(conf->group_mgmt_cipher);
if (!sm->mgmt_frame_prot)
return pos;
@ -3185,8 +3187,7 @@ static u8 * ieee80211w_kde_add(struct wpa_state_machine *sm, u8 *pos)
else
os_memcpy(igtk.pn, rsc, sizeof(igtk.pn));
os_memcpy(igtk.igtk, gsm->IGTK[gsm->GN_igtk - 4], len);
if (sm->wpa_auth->conf.disable_gtk ||
sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
if (conf->disable_gtk || sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
/*
* Provide unique random IGTK to each STA to prevent use of
* IGTK in the BSS.
@ -3198,7 +3199,7 @@ static u8 * ieee80211w_kde_add(struct wpa_state_machine *sm, u8 *pos)
(const u8 *) &igtk, WPA_IGTK_KDE_PREFIX_LEN + len,
NULL, 0);
if (!sm->wpa_auth->conf.beacon_prot)
if (!conf->beacon_prot)
return pos;
bigtk.keyid[0] = gsm->GN_bigtk;
@ -3294,12 +3295,11 @@ SM_STATE(WPA_PTK, PTKINITNEGOTIATING)
sm->TimeoutEvt = FALSE;
sm->TimeoutCtr++;
if (sm->wpa_auth->conf.wpa_disable_eapol_key_retries &&
sm->TimeoutCtr > 1) {
if (conf->wpa_disable_eapol_key_retries && sm->TimeoutCtr > 1) {
/* Do not allow retransmission of EAPOL-Key msg 3/4 */
return;
}
if (sm->TimeoutCtr > sm->wpa_auth->conf.wpa_pairwise_update_count) {
if (sm->TimeoutCtr > conf->wpa_pairwise_update_count) {
/* No point in sending the EAPOL-Key - we will disconnect
* immediately following this. */
return;
@ -3313,8 +3313,7 @@ SM_STATE(WPA_PTK, PTKINITNEGOTIATING)
/* If FT is used, wpa_auth->wpa_ie includes both RSNIE and MDIE */
wpa_ie = sm->wpa_auth->wpa_ie;
wpa_ie_len = sm->wpa_auth->wpa_ie_len;
if (sm->wpa == WPA_VERSION_WPA &&
(sm->wpa_auth->conf.wpa & WPA_PROTO_RSN) &&
if (sm->wpa == WPA_VERSION_WPA && (conf->wpa & WPA_PROTO_RSN) &&
wpa_ie_len > wpa_ie[1] + 2U && wpa_ie[0] == WLAN_EID_RSN) {
/* WPA-only STA, remove RSN IE and possible MDIE */
wpa_ie = wpa_ie + wpa_ie[1] + 2;
@ -3323,20 +3322,20 @@ SM_STATE(WPA_PTK, PTKINITNEGOTIATING)
wpa_ie_len = wpa_ie[1] + 2;
}
#ifdef CONFIG_TESTING_OPTIONS
if (sm->wpa_auth->conf.rsne_override_eapol_set) {
if (conf->rsne_override_eapol_set) {
wpa_ie_buf2 = replace_ie(
"RSNE", wpa_ie, &wpa_ie_len, WLAN_EID_RSN,
sm->wpa_auth->conf.rsne_override_eapol,
sm->wpa_auth->conf.rsne_override_eapol_len);
conf->rsne_override_eapol,
conf->rsne_override_eapol_len);
if (!wpa_ie_buf2)
goto done;
wpa_ie = wpa_ie_buf2;
}
if (sm->wpa_auth->conf.rsnxe_override_eapol_set) {
if (conf->rsnxe_override_eapol_set) {
wpa_ie_buf = replace_ie(
"RSNXE", wpa_ie, &wpa_ie_len, WLAN_EID_RSNX,
sm->wpa_auth->conf.rsnxe_override_eapol,
sm->wpa_auth->conf.rsnxe_override_eapol_len);
conf->rsnxe_override_eapol,
conf->rsnxe_override_eapol_len);
if (!wpa_ie_buf)
goto done;
wpa_ie = wpa_ie_buf;
@ -3361,7 +3360,7 @@ SM_STATE(WPA_PTK, PTKINITNEGOTIATING)
secure = 1;
gtk = gsm->GTK[gsm->GN - 1];
gtk_len = gsm->GTK_len;
if (sm->wpa_auth->conf.disable_gtk ||
if (conf->disable_gtk ||
sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
/*
* Provide unique random GTK to each STA to prevent use
@ -3501,8 +3500,8 @@ SM_STATE(WPA_PTK, PTKINITNEGOTIATING)
if (WPA_GET_BE32(sm->ip_addr) > 0) {
u8 addr[3 * 4];
os_memcpy(addr, sm->ip_addr, 4);
os_memcpy(addr + 4, sm->wpa_auth->conf.ip_addr_mask, 4);
os_memcpy(addr + 8, sm->wpa_auth->conf.ip_addr_go, 4);
os_memcpy(addr + 4, conf->ip_addr_mask, 4);
os_memcpy(addr + 8, conf->ip_addr_go, 4);
pos = wpa_add_kde(pos, WFA_KEY_DATA_IP_ADDR_ALLOC,
addr, sizeof(addr), NULL, 0);
}
@ -3590,6 +3589,7 @@ SM_STATE(WPA_PTK, PTKINITDONE)
SM_STEP(WPA_PTK)
{
struct wpa_authenticator *wpa_auth = sm->wpa_auth;
struct wpa_auth_config *conf = &wpa_auth->conf;
if (sm->Init)
SM_ENTER(WPA_PTK, INITIALIZE);
@ -3624,7 +3624,7 @@ SM_STEP(WPA_PTK)
break;
case WPA_PTK_AUTHENTICATION2:
if (wpa_key_mgmt_wpa_ieee8021x(sm->wpa_key_mgmt) &&
wpa_auth_get_eapol(sm->wpa_auth, sm->addr,
wpa_auth_get_eapol(wpa_auth, sm->addr,
WPA_EAPOL_keyRun) > 0)
SM_ENTER(WPA_PTK, INITPMK);
else if (wpa_key_mgmt_wpa_psk(sm->wpa_key_mgmt) ||
@ -3635,7 +3635,7 @@ SM_STEP(WPA_PTK)
SM_ENTER(WPA_PTK, INITPMK);
break;
case WPA_PTK_INITPMK:
if (wpa_auth_get_eapol(sm->wpa_auth, sm->addr,
if (wpa_auth_get_eapol(wpa_auth, sm->addr,
WPA_EAPOL_keyAvailable) > 0) {
SM_ENTER(WPA_PTK, PTKSTART);
#ifdef CONFIG_DPP
@ -3644,13 +3644,13 @@ SM_STEP(WPA_PTK)
#endif /* CONFIG_DPP */
} else {
wpa_auth->dot11RSNA4WayHandshakeFailures++;
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_INFO,
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
"INITPMK - keyAvailable = false");
SM_ENTER(WPA_PTK, DISCONNECT);
}
break;
case WPA_PTK_INITPSK:
if (wpa_auth_get_psk(sm->wpa_auth, sm->addr, sm->p2p_dev_addr,
if (wpa_auth_get_psk(wpa_auth, sm->addr, sm->p2p_dev_addr,
NULL, NULL, NULL)) {
SM_ENTER(WPA_PTK, PTKSTART);
#ifdef CONFIG_SAE
@ -3658,7 +3658,7 @@ SM_STEP(WPA_PTK)
SM_ENTER(WPA_PTK, PTKSTART);
#endif /* CONFIG_SAE */
} else {
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_INFO,
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
"no PSK configured for the STA");
wpa_auth->dot11RSNA4WayHandshakeFailures++;
SM_ENTER(WPA_PTK, DISCONNECT);
@ -3668,13 +3668,11 @@ SM_STEP(WPA_PTK)
if (sm->EAPOLKeyReceived && !sm->EAPOLKeyRequest &&
sm->EAPOLKeyPairwise)
SM_ENTER(WPA_PTK, PTKCALCNEGOTIATING);
else if (sm->TimeoutCtr >
sm->wpa_auth->conf.wpa_pairwise_update_count) {
else if (sm->TimeoutCtr > conf->wpa_pairwise_update_count) {
wpa_auth->dot11RSNA4WayHandshakeFailures++;
wpa_auth_vlogger(
sm->wpa_auth, sm->addr, LOGGER_DEBUG,
"PTKSTART: Retry limit %u reached",
sm->wpa_auth->conf.wpa_pairwise_update_count);
wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_DEBUG,
"PTKSTART: Retry limit %u reached",
conf->wpa_pairwise_update_count);
SM_ENTER(WPA_PTK, DISCONNECT);
} else if (sm->TimeoutEvt)
SM_ENTER(WPA_PTK, PTKSTART);
@ -3698,14 +3696,13 @@ SM_STEP(WPA_PTK)
sm->EAPOLKeyPairwise && sm->MICVerified)
SM_ENTER(WPA_PTK, PTKINITDONE);
else if (sm->TimeoutCtr >
sm->wpa_auth->conf.wpa_pairwise_update_count ||
(sm->wpa_auth->conf.wpa_disable_eapol_key_retries &&
conf->wpa_pairwise_update_count ||
(conf->wpa_disable_eapol_key_retries &&
sm->TimeoutCtr > 1)) {
wpa_auth->dot11RSNA4WayHandshakeFailures++;
wpa_auth_vlogger(
sm->wpa_auth, sm->addr, LOGGER_DEBUG,
"PTKINITNEGOTIATING: Retry limit %u reached",
sm->wpa_auth->conf.wpa_pairwise_update_count);
wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_DEBUG,
"PTKINITNEGOTIATING: Retry limit %u reached",
conf->wpa_pairwise_update_count);
SM_ENTER(WPA_PTK, DISCONNECT);
} else if (sm->TimeoutEvt)
SM_ENTER(WPA_PTK, PTKINITNEGOTIATING);
@ -3736,16 +3733,16 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
u8 *kde_buf = NULL, *pos, hdr[2];
size_t kde_len;
u8 *gtk, dummy_gtk[32];
struct wpa_auth_config *conf = &sm->wpa_auth->conf;
SM_ENTRY_MA(WPA_PTK_GROUP, REKEYNEGOTIATING, wpa_ptk_group);
sm->GTimeoutCtr++;
if (sm->wpa_auth->conf.wpa_disable_eapol_key_retries &&
sm->GTimeoutCtr > 1) {
if (conf->wpa_disable_eapol_key_retries && sm->GTimeoutCtr > 1) {
/* Do not allow retransmission of EAPOL-Key group msg 1/2 */
return;
}
if (sm->GTimeoutCtr > sm->wpa_auth->conf.wpa_group_update_count) {
if (sm->GTimeoutCtr > conf->wpa_group_update_count) {
/* No point in sending the EAPOL-Key - we will disconnect
* immediately following this. */
return;
@ -3762,8 +3759,7 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
"sending 1/2 msg of Group Key Handshake");
gtk = gsm->GTK[gsm->GN - 1];
if (sm->wpa_auth->conf.disable_gtk ||
sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
if (conf->disable_gtk || sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN) {
/*
* Provide unique random GTK to each STA to prevent use
* of GTK in the BSS.
@ -3809,8 +3805,8 @@ SM_STATE(WPA_PTK_GROUP, REKEYNEGOTIATING)
SM_STATE(WPA_PTK_GROUP, REKEYESTABLISHED)
{
#ifdef CONFIG_OCV
struct wpa_authenticator *wpa_auth = sm->wpa_auth;
#ifdef CONFIG_OCV
const u8 *key_data, *mic;
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
@ -3875,7 +3871,7 @@ SM_STATE(WPA_PTK_GROUP, REKEYESTABLISHED)
sm->GUpdateStationKeys = FALSE;
sm->GTimeoutCtr = 0;
/* FIX: MLME.SetProtection.Request(TA, Tx_Rx) */
wpa_auth_vlogger(sm->wpa_auth, sm->addr, LOGGER_INFO,
wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_INFO,
"group key handshake completed (%s)",
sm->wpa == WPA_VERSION_WPA ? "WPA" : "RSN");
sm->has_GTK = TRUE;
@ -3932,6 +3928,7 @@ SM_STEP(WPA_PTK_GROUP)
static int wpa_gtk_update(struct wpa_authenticator *wpa_auth,
struct wpa_group *group)
{
struct wpa_auth_config *conf = &wpa_auth->conf;
int ret = 0;
size_t len;
@ -3944,8 +3941,8 @@ static int wpa_gtk_update(struct wpa_authenticator *wpa_auth,
wpa_hexdump_key(MSG_DEBUG, "GTK",
group->GTK[group->GN - 1], group->GTK_len);
if (wpa_auth->conf.ieee80211w != NO_MGMT_FRAME_PROTECTION) {
len = wpa_cipher_key_len(wpa_auth->conf.group_mgmt_cipher);
if (conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
len = wpa_cipher_key_len(conf->group_mgmt_cipher);
os_memcpy(group->GNonce, group->Counter, WPA_NONCE_LEN);
inc_byte_array(group->Counter, WPA_NONCE_LEN);
if (wpa_gmk_to_gtk(group->GMK, "IGTK key expansion",
@ -3956,9 +3953,9 @@ static int wpa_gtk_update(struct wpa_authenticator *wpa_auth,
group->IGTK[group->GN_igtk - 4], len);
}
if (wpa_auth->conf.ieee80211w != NO_MGMT_FRAME_PROTECTION &&
wpa_auth->conf.beacon_prot) {
len = wpa_cipher_key_len(wpa_auth->conf.group_mgmt_cipher);
if (conf->ieee80211w != NO_MGMT_FRAME_PROTECTION &&
conf->beacon_prot) {
len = wpa_cipher_key_len(conf->group_mgmt_cipher);
os_memcpy(group->GNonce, group->Counter, WPA_NONCE_LEN);
inc_byte_array(group->Counter, WPA_NONCE_LEN);
if (wpa_gmk_to_gtk(group->GMK, "BIGTK key expansion",
@ -4178,21 +4175,22 @@ static void wpa_group_setkeys(struct wpa_authenticator *wpa_auth,
static int wpa_group_config_group_keys(struct wpa_authenticator *wpa_auth,
struct wpa_group *group)
{
struct wpa_auth_config *conf = &wpa_auth->conf;
int ret = 0;
if (wpa_auth_set_key(wpa_auth, group->vlan_id,
wpa_cipher_to_alg(wpa_auth->conf.wpa_group),
wpa_cipher_to_alg(conf->wpa_group),
broadcast_ether_addr, group->GN,
group->GTK[group->GN - 1], group->GTK_len,
KEY_FLAG_GROUP_TX_DEFAULT) < 0)
ret = -1;
if (wpa_auth->conf.ieee80211w != NO_MGMT_FRAME_PROTECTION) {
if (conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
enum wpa_alg alg;
size_t len;
alg = wpa_cipher_to_alg(wpa_auth->conf.group_mgmt_cipher);
len = wpa_cipher_key_len(wpa_auth->conf.group_mgmt_cipher);
alg = wpa_cipher_to_alg(conf->group_mgmt_cipher);
len = wpa_cipher_key_len(conf->group_mgmt_cipher);
if (ret == 0 &&
wpa_auth_set_key(wpa_auth, group->vlan_id, alg,
@ -4201,7 +4199,7 @@ static int wpa_group_config_group_keys(struct wpa_authenticator *wpa_auth,
KEY_FLAG_GROUP_TX_DEFAULT) < 0)
ret = -1;
if (ret == 0 && wpa_auth->conf.beacon_prot &&
if (ret == 0 && conf->beacon_prot &&
wpa_auth_set_key(wpa_auth, group->vlan_id, alg,
broadcast_ether_addr, group->GN_bigtk,
group->BIGTK[group->GN_bigtk - 6], len,
@ -4369,6 +4367,7 @@ static const char * wpa_bool_txt(int val)
int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen)
{
struct wpa_auth_config *conf;
int len = 0, ret;
char pmkid_txt[PMKID_LEN * 2 + 1];
#ifdef CONFIG_RSN_PREAUTH
@ -4379,6 +4378,7 @@ int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen)
if (wpa_auth == NULL)
return len;
conf = &wpa_auth->conf;
ret = os_snprintf(buf + len, buflen - len,
"dot11RSNAOptionImplemented=TRUE\n"
@ -4386,8 +4386,8 @@ int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen)
"dot11RSNAEnabled=%s\n"
"dot11RSNAPreauthenticationEnabled=%s\n",
wpa_bool_txt(preauth),
wpa_bool_txt(wpa_auth->conf.wpa & WPA_PROTO_RSN),
wpa_bool_txt(wpa_auth->conf.rsn_preauth));
wpa_bool_txt(conf->wpa & WPA_PROTO_RSN),
wpa_bool_txt(conf->rsn_preauth));
if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
@ -4422,10 +4422,10 @@ int wpa_get_mib(struct wpa_authenticator *wpa_auth, char *buf, size_t buflen)
"dot11RSNA4WayHandshakeFailures=%u\n"
"dot11RSNAConfigNumberOfGTKSAReplayCounters=0\n",
RSN_VERSION,
!!wpa_auth->conf.wpa_strict_rekey,
wpa_auth->conf.wpa_group_update_count,
wpa_auth->conf.wpa_pairwise_update_count,
wpa_cipher_key_len(wpa_auth->conf.wpa_group) * 8,
!!conf->wpa_strict_rekey,
conf->wpa_group_update_count,
conf->wpa_pairwise_update_count,
wpa_cipher_key_len(conf->wpa_group) * 8,
dot11RSNAConfigPMKLifetime,
dot11RSNAConfigPMKReauthThreshold,
dot11RSNAConfigSATimeout,