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STA: Support Extended Key ID

Browse Source 
Support Extended Key ID in wpa_supplicant according to
IEEE Std 802.11-2016 for infrastructure (AP) associations.

Extended Key ID allows to rekey pairwise keys without the otherwise
unavoidable MPDU losses on a busy link. The standard is fully backward
compatible, allowing STAs to also connect to APs not supporting it.

Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
This commit is contained in:
Alexander Wetzel 2020-03-20 20:04:32 +01:00 committed by Jouni Malinen
parent 862aac1fcd
commit b17b7a8e53
17 changed files with 222 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

117
src/rsn_supp/wpa.c
View File

@ -183,7 +183,7 @@ void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise)
int key_info, ver;
u8 bssid[ETH_ALEN], *rbuf, *key_mic, *mic;
if (pairwise && sm->wpa_deny_ptk0_rekey &&
if (pairwise && sm->wpa_deny_ptk0_rekey && !sm->use_ext_key_id &&
wpa_sm_get_state(sm) == WPA_COMPLETED) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: PTK0 rekey not allowed, reconnecting");
@ -608,6 +608,51 @@ static int wpa_derive_ptk(struct wpa_sm *sm, const unsigned char *src_addr,
}
static int wpa_handle_ext_key_id(struct wpa_sm *sm,
struct wpa_eapol_ie_parse *kde)
{
if (sm->ext_key_id) {
u16 key_id;
if (!kde->key_id) {
wpa_msg(sm->ctx->msg_ctx,
sm->use_ext_key_id ? MSG_INFO : MSG_DEBUG,
"RSN: No Key ID in Extended Key ID handshake");
sm->keyidx_active = 0;
return sm->use_ext_key_id ? -1 : 0;
}
key_id = kde->key_id[0] & 0x03;
if (key_id > 1) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"RSN: Invalid Extended Key ID: %d", key_id);
return -1;
}
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
"RSN: Using Extended Key ID %d", key_id);
sm->keyidx_active = key_id;
sm->use_ext_key_id = 1;
} else {
if (kde->key_id && (kde->key_id[0] & 0x03)) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"RSN: Non-zero Extended Key ID Key ID in PTK0 handshake");
return -1;
}
if (kde->key_id) {
/* This is not supposed to be included here, but ignore
* the case of matching Key ID 0 just in case. */
wpa_msg(sm->ctx->msg_ctx, MSG_DEBUG,
"RSN: Extended Key ID Key ID 0 in PTK0 handshake");
}
sm->keyidx_active = 0;
sm->use_ext_key_id = 0;
}
return 0;
}
static void wpa_supplicant_process_1_of_4(struct wpa_sm *sm,
const unsigned char *src_addr,
const struct wpa_eapol_key *key,
@ -626,7 +671,8 @@ static void wpa_supplicant_process_1_of_4(struct wpa_sm *sm,
return;
}
if (sm->wpa_deny_ptk0_rekey && wpa_sm_get_state(sm) == WPA_COMPLETED) {
if (sm->wpa_deny_ptk0_rekey && !sm->use_ext_key_id &&
wpa_sm_get_state(sm) == WPA_COMPLETED) {
wpa_msg(sm->ctx->msg_ctx, MSG_INFO,
"WPA: PTK0 rekey not allowed, reconnecting");
wpa_sm_reconnect(sm);
@ -859,13 +905,14 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
wpa_hexdump(MSG_DEBUG, "WPA: RSC", key_rsc, rsclen);
}
if (wpa_sm_set_key(sm, alg, sm->bssid, 0, 1, key_rsc, rsclen,
sm->ptk.tk, keylen,
if (wpa_sm_set_key(sm, alg, sm->bssid, sm->keyidx_active, 1, key_rsc,
rsclen, sm->ptk.tk, keylen,
KEY_FLAG_PAIRWISE | key_flag) < 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Failed to set PTK to the "
"driver (alg=%d keylen=%d bssid=" MACSTR ")",
alg, keylen, MAC2STR(sm->bssid));
"WPA: Failed to set PTK to the driver (alg=%d keylen=%d bssid="
MACSTR " idx=%d key_flag=0x%x)",
alg, keylen, MAC2STR(sm->bssid),
sm->keyidx_active, key_flag);
return -1;
}
@ -879,7 +926,23 @@ static int wpa_supplicant_install_ptk(struct wpa_sm *sm,
eloop_register_timeout(sm->wpa_ptk_rekey, 0, wpa_sm_rekey_ptk,
sm, NULL);
}
return 0;
}
static int wpa_supplicant_activate_ptk(struct wpa_sm *sm)
{
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
"WPA: Activate PTK (idx=%d bssid=" MACSTR ")",
sm->keyidx_active, MAC2STR(sm->bssid));
if (wpa_sm_set_key(sm, 0, sm->bssid, sm->keyidx_active, 0, NULL, 0,
NULL, 0, KEY_FLAG_PAIRWISE_RX_TX_MODIFY) < 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: Failed to activate PTK for TX (idx=%d bssid="
MACSTR ")", sm->keyidx_active, MAC2STR(sm->bssid));
return -1;
}
return 0;
}
@ -1582,6 +1645,9 @@ static void wpa_supplicant_process_3_of_4(struct wpa_sm *sm,
if (wpa_supplicant_validate_ie(sm, sm->bssid, &ie) < 0)
goto failed;
if (wpa_handle_ext_key_id(sm, &ie))
goto failed;
if (os_memcmp(sm->anonce, key->key_nonce, WPA_NONCE_LEN) != 0) {
wpa_msg(sm->ctx->msg_ctx, MSG_WARNING,
"WPA: ANonce from message 1 of 4-Way Handshake "
@ -1627,6 +1693,10 @@ static void wpa_supplicant_process_3_of_4(struct wpa_sm *sm,
}
#endif /* CONFIG_OCV */
if (sm->use_ext_key_id &&
wpa_supplicant_install_ptk(sm, key, KEY_FLAG_RX))
goto failed;
if (wpa_supplicant_send_4_of_4(sm, sm->bssid, key, ver, key_info,
&sm->ptk) < 0) {
goto failed;
@ -1638,7 +1708,14 @@ static void wpa_supplicant_process_3_of_4(struct wpa_sm *sm,
sm->renew_snonce = 1;
if (key_info & WPA_KEY_INFO_INSTALL) {
if (wpa_supplicant_install_ptk(sm, key, KEY_FLAG_RX_TX))
int res;
if (sm->use_ext_key_id)
res = wpa_supplicant_activate_ptk(sm);
else
res = wpa_supplicant_install_ptk(sm, key,
KEY_FLAG_RX_TX);
if (res)
goto failed;
}
@ -2880,6 +2957,8 @@ void wpa_sm_notify_assoc(struct wpa_sm *sm, const u8 *bssid)
#ifdef CONFIG_P2P
os_memset(sm->p2p_ip_addr, 0, sizeof(sm->p2p_ip_addr));
#endif /* CONFIG_P2P */
sm->keyidx_active = 0;
}
@ -2911,6 +2990,7 @@ void wpa_sm_notify_disassoc(struct wpa_sm *sm)
/* Keys are not needed in the WPA state machine anymore */
wpa_sm_drop_sa(sm);
sm->keyidx_active = 0;
sm->msg_3_of_4_ok = 0;
os_memset(sm->bssid, 0, ETH_ALEN);
@ -3164,6 +3244,12 @@ int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
case WPA_PARAM_DENY_PTK0_REKEY:
sm->wpa_deny_ptk0_rekey = value;
break;
case WPA_PARAM_EXT_KEY_ID:
sm->ext_key_id = value;
break;
case WPA_PARAM_USE_EXT_KEY_ID:
sm->use_ext_key_id = value;
break;
default:
break;
}
@ -3238,6 +3324,18 @@ int wpa_sm_pmf_enabled(struct wpa_sm *sm)
}
int wpa_sm_ext_key_id(struct wpa_sm *sm)
{
return sm ? sm->ext_key_id : 0;
}
int wpa_sm_ext_key_id_active(struct wpa_sm *sm)
{
return sm ? sm->use_ext_key_id : 0;
}
int wpa_sm_ocv_enabled(struct wpa_sm *sm)
{
struct wpa_ie_data rsn;
@ -4253,6 +4351,8 @@ static int fils_ft_build_assoc_req_rsne(struct wpa_sm *sm, struct wpabuf *buf)
capab |= WPA_CAPABILITY_MFPR;
if (sm->ocv)
capab |= WPA_CAPABILITY_OCVC;
if (sm->ext_key_id)
capab |= WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST;
wpabuf_put_le16(buf, capab);
/* PMKID Count */
@ -4680,6 +4780,7 @@ int fils_process_assoc_resp(struct wpa_sm *sm, const u8 *resp, size_t len)
keylen, (long unsigned int) sm->ptk.tk_len);
goto fail;
}
rsclen = wpa_cipher_rsc_len(sm->pairwise_cipher);
wpa_hexdump_key(MSG_DEBUG, "FILS: Set TK to driver",
sm->ptk.tk, keylen);

14
src/rsn_supp/wpa.h
View File

@ -102,6 +102,8 @@ enum wpa_sm_conf_params {
WPA_PARAM_OCV,
WPA_PARAM_SAE_PWE,
WPA_PARAM_DENY_PTK0_REKEY,
WPA_PARAM_EXT_KEY_ID,
WPA_PARAM_USE_EXT_KEY_ID,
};
struct rsn_supp_config {
@ -154,6 +156,8 @@ int wpa_sm_set_param(struct wpa_sm *sm, enum wpa_sm_conf_params param,
int wpa_sm_get_status(struct wpa_sm *sm, char *buf, size_t buflen,
int verbose);
int wpa_sm_pmf_enabled(struct wpa_sm *sm);
int wpa_sm_ext_key_id(struct wpa_sm *sm);
int wpa_sm_ext_key_id_active(struct wpa_sm *sm);
int wpa_sm_ocv_enabled(struct wpa_sm *sm);
void wpa_sm_key_request(struct wpa_sm *sm, int error, int pairwise);
@ -300,6 +304,16 @@ static inline int wpa_sm_pmf_enabled(struct wpa_sm *sm)
return 0;
}
static inline int wpa_sm_ext_key_id(struct wpa_sm *sm)
{
return 0;
}
static inline int wpa_sm_ext_key_id_active(struct wpa_sm *sm)
{
return 0;
}
static inline int wpa_sm_ocv_enabled(struct wpa_sm *sm)
{
return 0;

2
src/rsn_supp/wpa_ft.c
View File

@ -265,6 +265,8 @@ static u8 * wpa_ft_gen_req_ies(struct wpa_sm *sm, size_t *len,
capab |= WPA_CAPABILITY_MFPR;
if (sm->ocv)
capab |= WPA_CAPABILITY_OCVC;
if (sm->ext_key_id)
capab |= WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST;
WPA_PUT_LE16(pos, capab);
pos += 2;

4
src/rsn_supp/wpa_i.h
View File

@ -68,6 +68,10 @@ struct wpa_sm {
int wpa_rsc_relaxation;
int owe_ptk_workaround;
int beacon_prot;
int ext_key_id; /* whether Extended Key ID is enabled */
int use_ext_key_id; /* whether Extended Key ID has been detected
* to be used */
int keyidx_active; /* Key ID for the active TK */
u8 own_addr[ETH_ALEN];
const char *ifname;

2
src/rsn_supp/wpa_ie.c
View File

@ -221,6 +221,8 @@ static int wpa_gen_wpa_ie_rsn(u8 *rsn_ie, size_t rsn_ie_len,
capab |= WPA_CAPABILITY_MFPR;
if (sm->ocv)
capab |= WPA_CAPABILITY_OCVC;
if (sm->ext_key_id)
capab |= WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST;
WPA_PUT_LE16(pos, capab);
pos += 2;

1
wpa_supplicant/ap.c
View File

@ -344,6 +344,7 @@ static int wpa_supplicant_conf_ap(struct wpa_supplicant *wpa_s,
#endif /* CONFIG_IEEE80211AX */
bss->isolate = !wpa_s->conf->p2p_intra_bss;
bss->extended_key_id = wpa_s->conf->extended_key_id;
bss->force_per_enrollee_psk = wpa_s->global->p2p_per_sta_psk;
bss->wpa_deny_ptk0_rekey = ssid->wpa_deny_ptk0_rekey;

2
wpa_supplicant/config.c
View File

@ -4293,6 +4293,7 @@ struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
config->cert_in_cb = DEFAULT_CERT_IN_CB;
config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
config->extended_key_id = DEFAULT_EXTENDED_KEY_ID;
#ifdef CONFIG_MBO
config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
@ -5057,6 +5058,7 @@ static const struct global_parse_data global_fields[] = {
{ INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
#ifdef CONFIG_WNM
{ INT_RANGE(disable_btm, 0, 1), CFG_CHANGED_DISABLE_BTM },
{ INT_RANGE(extended_key_id, 0, 1), 0 },
#endif /* CONFIG_WNM */
};

12
wpa_supplicant/config.h
View File

@ -44,6 +44,7 @@
#define DEFAULT_MBO_CELL_CAPA MBO_CELL_CAPA_NOT_SUPPORTED
#define DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD -75
#define DEFAULT_OCE_SUPPORT OCE_STA
#define DEFAULT_EXTENDED_KEY_ID 0
#include "config_ssid.h"
#include "wps/wps.h"
@ -1570,6 +1571,17 @@ struct wpa_config {
* By default BSS transition management is enabled
*/
int disable_btm;
/**
* extended_key_id - Extended Key ID support
*
* IEEE Std 802.11-2016 optionally allows to use Key ID 0 and 1 for PTK
* keys with Extended Key ID.
*
* 0 = don't use Extended Key ID
* 1 = use Extended Key ID when possible
*/
int extended_key_id;
};

3
wpa_supplicant/config_file.c
View File

@ -1596,6 +1596,9 @@ static void wpa_config_write_global(FILE *f, struct wpa_config *config)
config->p2p_interface_random_mac_addr);
if (config->disable_btm)
fprintf(f, "disable_btm=1\n");
if (config->extended_key_id != DEFAULT_EXTENDED_KEY_ID)
fprintf(f, "extended_key_id=%d\n",
config->extended_key_id);
}
#endif /* CONFIG_NO_CONFIG_WRITE */

9
wpa_supplicant/config_winreg.c
View File

@ -277,6 +277,15 @@ static int wpa_config_read_global(struct wpa_config *config, HKEY hk)
wpa_config_read_reg_dword(hk, TEXT("okc"), &config->okc);
wpa_config_read_reg_dword(hk, TEXT("pmf"), &val);
config->pmf = val;
if (wpa_config_read_reg_dword(hk, TEXT("extended_key_id"),
&val) == 0) {
if (val < 0 || val > 1) {
wpa_printf(MSG_ERROR,
"Invalid Extended Key ID setting (%d)", val);
errors++;
}
config->extended_key_id = val;
}
return errors ? -1 : 0;
}

3
wpa_supplicant/ctrl_iface.c
View File

@ -5374,6 +5374,9 @@ static void wpa_supplicant_ctrl_iface_drop_sa(struct wpa_supplicant *wpa_s)
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, wpa_s->bssid, 0, 0, NULL, 0, NULL,
0, KEY_FLAG_PAIRWISE);
if (wpa_sm_ext_key_id(wpa_s->wpa))
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, wpa_s->bssid, 1, 0,
NULL, 0, NULL, 0, KEY_FLAG_PAIRWISE);
/* MLME-SETPROTECTION.request(None) */
wpa_drv_mlme_setprotection(wpa_s, wpa_s->bssid,
MLME_SETPROTECTION_PROTECT_TYPE_NONE,

13
wpa_supplicant/dbus/dbus_new_handlers.c
View File

@ -991,20 +991,25 @@ dbus_bool_t wpas_dbus_getter_global_capabilities(
const struct wpa_dbus_property_desc *property_desc,
DBusMessageIter *iter, DBusError *error, void *user_data)
{
const char *capabilities[11];
const char *capabilities[12];
size_t num_items = 0;
#ifdef CONFIG_FILS
struct wpa_global *global = user_data;
struct wpa_supplicant *wpa_s;
#ifdef CONFIG_FILS
int fils_supported = 0, fils_sk_pfs_supported = 0;
#endif /* CONFIG_FILS */
int ext_key_id_supported = 0;
for (wpa_s = global->ifaces; wpa_s; wpa_s = wpa_s->next) {
#ifdef CONFIG_FILS
if (wpa_is_fils_supported(wpa_s))
fils_supported = 1;
if (wpa_is_fils_sk_pfs_supported(wpa_s))
fils_sk_pfs_supported = 1;
}
#endif /* CONFIG_FILS */
if (wpa_s->drv_flags & WPA_DRIVER_FLAGS_EXTENDED_KEY_ID)
ext_key_id_supported = 1;
}
#ifdef CONFIG_AP
capabilities[num_items++] = "ap";
@ -1037,6 +1042,8 @@ dbus_bool_t wpas_dbus_getter_global_capabilities(
#ifdef CONFIG_OWE
capabilities[num_items++] = "owe";
#endif /* CONFIG_OWE */
if (ext_key_id_supported)
capabilities[num_items++] = "extended_key_id";
return wpas_dbus_simple_array_property_getter(iter,
DBUS_TYPE_STRING,

9
wpa_supplicant/driver_i.h
View File

@ -165,7 +165,14 @@ static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s,
params.key_flag = key_flag;
if (alg != WPA_ALG_NONE) {
if (key_idx >= 0 && key_idx <= 6)
/* keyidx = 1 can be either a broadcast or--with
* Extended Key ID--a unicast key. Use bit 15 for
* the pairwise keyidx 1 which is hopefully high enough
* to not clash with future extensions.
*/
if (key_idx == 1 && (key_flag & KEY_FLAG_PAIRWISE))
wpa_s->keys_cleared &= ~BIT(15);
else if (key_idx >= 0 && key_idx <= 5)
wpa_s->keys_cleared &= ~BIT(key_idx);
else
wpa_s->keys_cleared = 0;

3
wpa_supplicant/wpa_cli.c
View File

@ -502,6 +502,7 @@ static char ** wpa_cli_complete_set(const char *str, int pos)
"ignore_auth_resp",
#endif /* CONFIG_TESTING_OPTIONS */
"relative_rssi", "relative_band_adjust",
"extended_key_id",
};
int i, num_fields = ARRAY_SIZE(fields);
@ -593,7 +594,7 @@ static char ** wpa_cli_complete_get(const char *str, int pos)
"tdls_external_control", "osu_dir", "wowlan_triggers",
"p2p_search_delay", "mac_addr", "rand_addr_lifetime",
"preassoc_mac_addr", "key_mgmt_offload", "passive_scan",
"reassoc_same_bss_optim"
"reassoc_same_bss_optim", "extended_key_id"
};
int i, num_fields = ARRAY_SIZE(fields);

35
wpa_supplicant/wpa_supplicant.c
View File

@ -748,10 +748,15 @@ void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr)
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, NULL, i, 0, NULL, 0,
NULL, 0, KEY_FLAG_GROUP);
}
if (!(wpa_s->keys_cleared & BIT(0)) && addr &&
/* Pairwise Key ID 1 for Extended Key ID is tracked in bit 15 */
if (!(wpa_s->keys_cleared & (BIT(0) | BIT(15))) && addr &&
!is_zero_ether_addr(addr)) {
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL, 0, NULL,
0, KEY_FLAG_PAIRWISE);
if (!(wpa_s->keys_cleared & BIT(0)))
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 0, 0, NULL,
0, NULL, 0, KEY_FLAG_PAIRWISE);
if (!(wpa_s->keys_cleared & BIT(15)))
wpa_drv_set_key(wpa_s, WPA_ALG_NONE, addr, 1, 0, NULL,
0, NULL, 0, KEY_FLAG_PAIRWISE);
/* MLME-SETPROTECTION.request(None) */
wpa_drv_mlme_setprotection(
wpa_s, addr,
@ -1635,6 +1640,30 @@ int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
sae_pwe = 1;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_SAE_PWE, sae_pwe);
/* Extended Key ID is only supported in infrastructure BSS so far */
if (ssid->mode == WPAS_MODE_INFRA && wpa_s->conf->extended_key_id &&
(ssid->proto & WPA_PROTO_RSN) &&
ssid->pairwise_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_CCMP_256 |
WPA_CIPHER_GCMP | WPA_CIPHER_GCMP_256) &&
(wpa_s->drv_flags & WPA_DRIVER_FLAGS_EXTENDED_KEY_ID)) {
int use_ext_key_id = 0;
wpa_msg(wpa_s, MSG_DEBUG,
"WPA: Enable Extended Key ID support");
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_EXT_KEY_ID,
wpa_s->conf->extended_key_id);
if (bss_rsn &&
wpa_s->conf->extended_key_id &&
wpa_s->pairwise_cipher != WPA_CIPHER_TKIP &&
(ie.capabilities & WPA_CAPABILITY_EXT_KEY_ID_FOR_UNICAST))
use_ext_key_id = 1;
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_USE_EXT_KEY_ID,
use_ext_key_id);
} else {
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_EXT_KEY_ID, 0);
wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_USE_EXT_KEY_ID, 0);
}
if (wpa_sm_set_assoc_wpa_ie_default(wpa_s->wpa, wpa_ie, wpa_ie_len)) {
wpa_msg(wpa_s, MSG_WARNING, "WPA: Failed to generate WPA IE");
return -1;

5
wpa_supplicant/wpa_supplicant.conf
View File

@ -802,6 +802,11 @@ fast_reauth=1
# Set BIT(1) to Enable OCE in STA-CFON mode
#oce=1
# Extended Key ID support for Individually Addressed frames
# 0 = force off: Do not use Extended Key ID (default)
# 1 = auto: Activate Extended Key ID support if the driver supports it
#extended_key_id=0
# network block
#
# Each network (usually AP's sharing the same SSID) is configured as a separate

6
wpa_supplicant/wpas_glue.c
View File

@ -533,7 +533,8 @@ static int wpa_supplicant_set_key(void *_wpa_s, enum wpa_alg alg,
}
#endif /* CONFIG_TESTING_GET_GTK */
#ifdef CONFIG_TESTING_OPTIONS
if (addr && !is_broadcast_ether_addr(addr)) {
if (addr && !is_broadcast_ether_addr(addr) &&
!(key_flag & KEY_FLAG_MODIFY)) {
wpa_s->last_tk_alg = alg;
os_memcpy(wpa_s->last_tk_addr, addr, ETH_ALEN);
wpa_s->last_tk_key_idx = key_idx;
@ -1077,7 +1078,8 @@ static int wpa_supplicant_eap_auth_start_cb(void *ctx)
{
struct wpa_supplicant *wpa_s = ctx;
if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey) {
if (!wpa_s->new_connection && wpa_s->deny_ptk0_rekey &&
!wpa_sm_ext_key_id_active(wpa_s->wpa)) {
wpa_msg(wpa_s, MSG_INFO,
"WPA: PTK0 rekey not allowed, reconnecting");
wpa_supplicant_reconnect(wpa_s);