/*
* IEEE 802.11 RSN / WPA Authenticator
- * Copyright (c) 2004-2011, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#include "utils/common.h"
#include "utils/eloop.h"
#include "utils/state_machine.h"
+#include "utils/bitfield.h"
#include "common/ieee802_11_defs.h"
#include "crypto/aes_wrap.h"
#include "crypto/crypto.h"
static void wpa_send_eapol_timeout(void *eloop_ctx, void *timeout_ctx);
static int wpa_sm_step(struct wpa_state_machine *sm);
-static int wpa_verify_key_mic(struct wpa_ptk *PTK, u8 *data, size_t data_len);
+static int wpa_verify_key_mic(int akmp, struct wpa_ptk *PTK, u8 *data,
+ size_t data_len);
static void wpa_sm_call_step(void *eloop_ctx, void *timeout_ctx);
static void wpa_group_sm_step(struct wpa_authenticator *wpa_auth,
struct wpa_group *group);
struct wpa_group *group);
static int wpa_group_config_group_keys(struct wpa_authenticator *wpa_auth,
struct wpa_group *group);
+static int wpa_derive_ptk(struct wpa_state_machine *sm, const u8 *snonce,
+ const u8 *pmk, unsigned int pmk_len,
+ struct wpa_ptk *ptk);
+static void wpa_group_free(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group);
+static void wpa_group_get(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group);
+static void wpa_group_put(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group);
static const u32 dot11RSNAConfigGroupUpdateCount = 4;
static const u32 dot11RSNAConfigPairwiseUpdateCount = 4;
static const int dot11RSNAConfigSATimeout = 60;
-static inline void wpa_auth_mic_failure_report(
+static inline int wpa_auth_mic_failure_report(
struct wpa_authenticator *wpa_auth, const u8 *addr)
{
if (wpa_auth->cb.mic_failure_report)
- wpa_auth->cb.mic_failure_report(wpa_auth->cb.ctx, addr);
+ return wpa_auth->cb.mic_failure_report(wpa_auth->cb.ctx, addr);
+ return 0;
+}
+
+
+static inline void wpa_auth_psk_failure_report(
+ struct wpa_authenticator *wpa_auth, const u8 *addr)
+{
+ if (wpa_auth->cb.psk_failure_report)
+ wpa_auth->cb.psk_failure_report(wpa_auth->cb.ctx, addr);
}
static inline const u8 * wpa_auth_get_psk(struct wpa_authenticator *wpa_auth,
- const u8 *addr, const u8 *prev_psk)
+ const u8 *addr,
+ const u8 *p2p_dev_addr,
+ const u8 *prev_psk)
{
if (wpa_auth->cb.get_psk == NULL)
return NULL;
- return wpa_auth->cb.get_psk(wpa_auth->cb.ctx, addr, prev_psk);
+ return wpa_auth->cb.get_psk(wpa_auth->cb.ctx, addr, p2p_dev_addr,
+ prev_psk);
}
}
+#ifdef CONFIG_MESH
+static inline int wpa_auth_start_ampe(struct wpa_authenticator *wpa_auth,
+ const u8 *addr)
+{
+ if (wpa_auth->cb.start_ampe == NULL)
+ return -1;
+ return wpa_auth->cb.start_ampe(wpa_auth->cb.ctx, addr);
+}
+#endif /* CONFIG_MESH */
+
+
int wpa_auth_for_each_sta(struct wpa_authenticator *wpa_auth,
int (*cb)(struct wpa_state_machine *sm, void *ctx),
void *cb_ctx)
if (wpa_key_mgmt_sha256(sm->wpa_key_mgmt))
ret = 1;
#endif /* CONFIG_IEEE80211W */
+ if (sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN)
+ ret = 1;
return ret;
}
static void wpa_rekey_gtk(void *eloop_ctx, void *timeout_ctx)
{
struct wpa_authenticator *wpa_auth = eloop_ctx;
- struct wpa_group *group;
+ struct wpa_group *group, *next;
wpa_auth_logger(wpa_auth, NULL, LOGGER_DEBUG, "rekeying GTK");
- for (group = wpa_auth->group; group; group = group->next) {
+ group = wpa_auth->group;
+ while (group) {
+ wpa_group_get(wpa_auth, group);
+
group->GTKReKey = TRUE;
do {
group->changed = FALSE;
wpa_group_sm_step(wpa_auth, group);
} while (group->changed);
+
+ next = group->next;
+ wpa_group_put(wpa_auth, group);
+ group = next;
}
if (wpa_auth->conf.wpa_group_rekey) {
}
-static void wpa_group_set_key_len(struct wpa_group *group, int cipher)
-{
- switch (cipher) {
- case WPA_CIPHER_CCMP:
- group->GTK_len = 16;
- break;
- case WPA_CIPHER_GCMP:
- group->GTK_len = 16;
- break;
- case WPA_CIPHER_TKIP:
- group->GTK_len = 32;
- break;
- case WPA_CIPHER_WEP104:
- group->GTK_len = 13;
- break;
- case WPA_CIPHER_WEP40:
- group->GTK_len = 5;
- break;
- }
-}
-
-
static int wpa_group_init_gmk_and_counter(struct wpa_authenticator *wpa_auth,
struct wpa_group *group)
{
- u8 buf[ETH_ALEN + 8 + sizeof(group)];
+ u8 buf[ETH_ALEN + 8 + sizeof(unsigned long)];
u8 rkey[32];
+ unsigned long ptr;
if (random_get_bytes(group->GMK, WPA_GMK_LEN) < 0)
return -1;
*/
os_memcpy(buf, wpa_auth->addr, ETH_ALEN);
wpa_get_ntp_timestamp(buf + ETH_ALEN);
- os_memcpy(buf + ETH_ALEN + 8, &group, sizeof(group));
+ ptr = (unsigned long) group;
+ os_memcpy(buf + ETH_ALEN + 8, &ptr, sizeof(ptr));
if (random_get_bytes(rkey, sizeof(rkey)) < 0)
return -1;
group->GTKAuthenticator = TRUE;
group->vlan_id = vlan_id;
-
- wpa_group_set_key_len(group, wpa_auth->conf.wpa_group);
+ group->GTK_len = wpa_cipher_key_len(wpa_auth->conf.wpa_group);
if (random_pool_ready() != 1) {
wpa_printf(MSG_INFO, "WPA: Not enough entropy in random pool "
wpa_auth);
if (wpa_auth->pmksa == NULL) {
wpa_printf(MSG_ERROR, "PMKSA cache initialization failed.");
+ os_free(wpa_auth->group);
os_free(wpa_auth->wpa_ie);
os_free(wpa_auth);
return NULL;
wpa_auth->ft_pmk_cache = wpa_ft_pmk_cache_init();
if (wpa_auth->ft_pmk_cache == NULL) {
wpa_printf(MSG_ERROR, "FT PMK cache initialization failed.");
+ os_free(wpa_auth->group);
os_free(wpa_auth->wpa_ie);
pmksa_cache_auth_deinit(wpa_auth->pmksa);
os_free(wpa_auth);
wpa_rekey_gtk, wpa_auth, NULL);
}
+#ifdef CONFIG_P2P
+ if (WPA_GET_BE32(conf->ip_addr_start)) {
+ int count = WPA_GET_BE32(conf->ip_addr_end) -
+ WPA_GET_BE32(conf->ip_addr_start) + 1;
+ if (count > 1000)
+ count = 1000;
+ if (count > 0)
+ wpa_auth->ip_pool = bitfield_alloc(count);
+ }
+#endif /* CONFIG_P2P */
+
return wpa_auth;
}
wpa_group_sm_step(wpa_auth, group);
group->GInit = FALSE;
wpa_group_sm_step(wpa_auth, group);
+ if (group->wpa_group_state == WPA_GROUP_FATAL_FAILURE)
+ return -1;
return 0;
}
wpa_auth->ft_pmk_cache = NULL;
#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_P2P
+ bitfield_free(wpa_auth->ip_pool);
+#endif /* CONFIG_P2P */
+
+
os_free(wpa_auth->wpa_ie);
group = wpa_auth->group;
* configuration.
*/
group = wpa_auth->group;
- wpa_group_set_key_len(group, wpa_auth->conf.wpa_group);
+ group->GTK_len = wpa_cipher_key_len(wpa_auth->conf.wpa_group);
group->GInit = TRUE;
wpa_group_sm_step(wpa_auth, group);
group->GInit = FALSE;
struct wpa_state_machine *
-wpa_auth_sta_init(struct wpa_authenticator *wpa_auth, const u8 *addr)
+wpa_auth_sta_init(struct wpa_authenticator *wpa_auth, const u8 *addr,
+ const u8 *p2p_dev_addr)
{
struct wpa_state_machine *sm;
+ if (wpa_auth->group->wpa_group_state == WPA_GROUP_FATAL_FAILURE)
+ return NULL;
+
sm = os_zalloc(sizeof(struct wpa_state_machine));
if (sm == NULL)
return NULL;
os_memcpy(sm->addr, addr, ETH_ALEN);
+ if (p2p_dev_addr)
+ os_memcpy(sm->p2p_dev_addr, p2p_dev_addr, ETH_ALEN);
sm->wpa_auth = wpa_auth;
sm->group = wpa_auth->group;
+ wpa_group_get(sm->wpa_auth, sm->group);
return sm;
}
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_DEBUG,
"FT authentication already completed - do not "
"start 4-way handshake");
+ /* Go to PTKINITDONE state to allow GTK rekeying */
+ sm->wpa_ptk_state = WPA_PTK_PTKINITDONE;
return 0;
}
#endif /* CONFIG_IEEE80211R */
static void wpa_free_sta_sm(struct wpa_state_machine *sm)
{
+#ifdef CONFIG_P2P
+ if (WPA_GET_BE32(sm->ip_addr)) {
+ u32 start;
+ wpa_printf(MSG_DEBUG, "P2P: Free assigned IP "
+ "address %u.%u.%u.%u from " MACSTR,
+ sm->ip_addr[0], sm->ip_addr[1],
+ sm->ip_addr[2], sm->ip_addr[3],
+ MAC2STR(sm->addr));
+ start = WPA_GET_BE32(sm->wpa_auth->conf.ip_addr_start);
+ bitfield_clear(sm->wpa_auth->ip_pool,
+ WPA_GET_BE32(sm->ip_addr) - start);
+ }
+#endif /* CONFIG_P2P */
if (sm->GUpdateStationKeys) {
sm->group->GKeyDoneStations--;
sm->GUpdateStationKeys = FALSE;
}
#ifdef CONFIG_IEEE80211R
os_free(sm->assoc_resp_ftie);
+ wpabuf_free(sm->ft_pending_req_ies);
#endif /* CONFIG_IEEE80211R */
os_free(sm->last_rx_eapol_key);
os_free(sm->wpa_ie);
+ wpa_group_put(sm->wpa_auth, sm->group);
os_free(sm);
}
#endif /* CONFIG_IEEE80211R */
-static void wpa_receive_error_report(struct wpa_authenticator *wpa_auth,
- struct wpa_state_machine *sm, int group)
+static int wpa_receive_error_report(struct wpa_authenticator *wpa_auth,
+ struct wpa_state_machine *sm, int group)
{
/* Supplicant reported a Michael MIC error */
wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_INFO,
"ignore Michael MIC failure report since "
"pairwise cipher is not TKIP");
} else {
- wpa_auth_mic_failure_report(wpa_auth, sm->addr);
+ if (wpa_auth_mic_failure_report(wpa_auth, sm->addr) > 0)
+ return 1; /* STA entry was removed */
sm->dot11RSNAStatsTKIPRemoteMICFailures++;
wpa_auth->dot11RSNAStatsTKIPRemoteMICFailures++;
}
* Authenticator may do it, let's change the keys now anyway.
*/
wpa_request_new_ptk(sm);
+ return 0;
+}
+
+
+static int wpa_try_alt_snonce(struct wpa_state_machine *sm, u8 *data,
+ size_t data_len)
+{
+ struct wpa_ptk PTK;
+ int ok = 0;
+ const u8 *pmk = NULL;
+ unsigned int pmk_len;
+
+ for (;;) {
+ if (wpa_key_mgmt_wpa_psk(sm->wpa_key_mgmt)) {
+ pmk = wpa_auth_get_psk(sm->wpa_auth, sm->addr,
+ sm->p2p_dev_addr, pmk);
+ if (pmk == NULL)
+ break;
+ pmk_len = PMK_LEN;
+ } else {
+ pmk = sm->PMK;
+ pmk_len = sm->pmk_len;
+ }
+
+ wpa_derive_ptk(sm, sm->alt_SNonce, pmk, pmk_len, &PTK);
+
+ if (wpa_verify_key_mic(sm->wpa_key_mgmt, &PTK, data, data_len)
+ == 0) {
+ ok = 1;
+ break;
+ }
+
+ if (!wpa_key_mgmt_wpa_psk(sm->wpa_key_mgmt))
+ break;
+ }
+
+ if (!ok) {
+ wpa_printf(MSG_DEBUG,
+ "WPA: Earlier SNonce did not result in matching MIC");
+ return -1;
+ }
+
+ wpa_printf(MSG_DEBUG,
+ "WPA: Earlier SNonce resulted in matching MIC");
+ sm->alt_snonce_valid = 0;
+ os_memcpy(sm->SNonce, sm->alt_SNonce, WPA_NONCE_LEN);
+ os_memcpy(&sm->PTK, &PTK, sizeof(PTK));
+ sm->PTK_valid = TRUE;
+
+ return 0;
}
{
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
+ struct wpa_eapol_key_192 *key192;
u16 key_info, key_data_length;
enum { PAIRWISE_2, PAIRWISE_4, GROUP_2, REQUEST,
SMK_M1, SMK_M3, SMK_ERROR } msg;
char *msgtxt;
struct wpa_eapol_ie_parse kde;
int ft;
- const u8 *eapol_key_ie;
- size_t eapol_key_ie_len;
+ const u8 *eapol_key_ie, *key_data;
+ size_t eapol_key_ie_len, keyhdrlen, mic_len;
if (wpa_auth == NULL || !wpa_auth->conf.wpa || sm == NULL)
return;
- if (data_len < sizeof(*hdr) + sizeof(*key))
+ mic_len = wpa_mic_len(sm->wpa_key_mgmt);
+ keyhdrlen = mic_len == 24 ? sizeof(*key192) : sizeof(*key);
+
+ if (data_len < sizeof(*hdr) + keyhdrlen)
return;
hdr = (struct ieee802_1x_hdr *) data;
key = (struct wpa_eapol_key *) (hdr + 1);
+ key192 = (struct wpa_eapol_key_192 *) (hdr + 1);
key_info = WPA_GET_BE16(key->key_info);
- key_data_length = WPA_GET_BE16(key->key_data_length);
+ if (mic_len == 24) {
+ key_data = (const u8 *) (key192 + 1);
+ key_data_length = WPA_GET_BE16(key192->key_data_length);
+ } else {
+ key_data = (const u8 *) (key + 1);
+ key_data_length = WPA_GET_BE16(key->key_data_length);
+ }
wpa_printf(MSG_DEBUG, "WPA: Received EAPOL-Key from " MACSTR
" key_info=0x%x type=%u key_data_length=%u",
MAC2STR(sm->addr), key_info, key->type, key_data_length);
- if (key_data_length > data_len - sizeof(*hdr) - sizeof(*key)) {
+ if (key_data_length > data_len - sizeof(*hdr) - keyhdrlen) {
wpa_printf(MSG_INFO, "WPA: Invalid EAPOL-Key frame - "
"key_data overflow (%d > %lu)",
key_data_length,
(unsigned long) (data_len - sizeof(*hdr) -
- sizeof(*key)));
+ keyhdrlen));
return;
}
if (sm->pairwise == WPA_CIPHER_CCMP ||
sm->pairwise == WPA_CIPHER_GCMP) {
if (wpa_use_aes_cmac(sm) &&
+ sm->wpa_key_mgmt != WPA_KEY_MGMT_OSEN &&
+ !wpa_key_mgmt_suite_b(sm->wpa_key_mgmt) &&
ver != WPA_KEY_INFO_TYPE_AES_128_CMAC) {
wpa_auth_logger(wpa_auth, sm->addr,
LOGGER_WARNING,
return;
}
}
+
+ if (wpa_key_mgmt_suite_b(sm->wpa_key_mgmt) &&
+ ver != WPA_KEY_INFO_TYPE_AKM_DEFINED) {
+ wpa_auth_logger(wpa_auth, sm->addr, LOGGER_WARNING,
+ "did not use EAPOL-Key descriptor version 0 as required for AKM-defined cases");
+ return;
+ }
}
if (key_info & WPA_KEY_INFO_REQUEST) {
"based on retransmitted EAPOL-Key "
"1/4");
sm->update_snonce = 1;
- wpa_replay_counter_mark_invalid(sm->prev_key_replay,
- key->replay_counter);
+ os_memcpy(sm->alt_SNonce, sm->SNonce, WPA_NONCE_LEN);
+ sm->alt_snonce_valid = TRUE;
+ os_memcpy(sm->alt_replay_counter,
+ sm->key_replay[0].counter,
+ WPA_REPLAY_COUNTER_LEN);
+ goto continue_processing;
+ }
+
+ if (msg == PAIRWISE_4 && sm->alt_snonce_valid &&
+ sm->wpa_ptk_state == WPA_PTK_PTKINITNEGOTIATING &&
+ os_memcmp(key->replay_counter, sm->alt_replay_counter,
+ WPA_REPLAY_COUNTER_LEN) == 0) {
+ /*
+ * Supplicant may still be using the old SNonce since
+ * there was two EAPOL-Key 2/4 messages and they had
+ * different SNonce values.
+ */
+ wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_DEBUG,
+ "Try to process received EAPOL-Key 4/4 based on old Replay Counter and SNonce from an earlier EAPOL-Key 1/4");
goto continue_processing;
}
wpa_sta_disconnect(wpa_auth, sm->addr);
return;
}
- if (wpa_parse_kde_ies((u8 *) (key + 1), key_data_length,
- &kde) < 0) {
+ if (wpa_parse_kde_ies(key_data, key_data_length, &kde) < 0) {
wpa_auth_vlogger(wpa_auth, sm->addr, LOGGER_INFO,
"received EAPOL-Key msg 2/4 with "
"invalid Key Data contents");
if (kde.rsn_ie) {
eapol_key_ie = kde.rsn_ie;
eapol_key_ie_len = kde.rsn_ie_len;
+ } else if (kde.osen) {
+ eapol_key_ie = kde.osen;
+ eapol_key_ie_len = kde.osen_len;
} else {
eapol_key_ie = kde.wpa_ie;
eapol_key_ie_len = kde.wpa_ie_len;
return;
}
#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_P2P
+ if (kde.ip_addr_req && kde.ip_addr_req[0] &&
+ wpa_auth->ip_pool && WPA_GET_BE32(sm->ip_addr) == 0) {
+ int idx;
+ wpa_printf(MSG_DEBUG, "P2P: IP address requested in "
+ "EAPOL-Key exchange");
+ idx = bitfield_get_first_zero(wpa_auth->ip_pool);
+ if (idx >= 0) {
+ u32 start = WPA_GET_BE32(wpa_auth->conf.
+ ip_addr_start);
+ bitfield_set(wpa_auth->ip_pool, idx);
+ WPA_PUT_BE32(sm->ip_addr, start + idx);
+ wpa_printf(MSG_DEBUG, "P2P: Assigned IP "
+ "address %u.%u.%u.%u to " MACSTR,
+ sm->ip_addr[0], sm->ip_addr[1],
+ sm->ip_addr[2], sm->ip_addr[3],
+ MAC2STR(sm->addr));
+ }
+ }
+#endif /* CONFIG_P2P */
break;
case PAIRWISE_4:
if (sm->wpa_ptk_state != WPA_PTK_PTKINITNEGOTIATING ||
sm->MICVerified = FALSE;
if (sm->PTK_valid && !sm->update_snonce) {
- if (wpa_verify_key_mic(&sm->PTK, data, data_len)) {
+ if (wpa_verify_key_mic(sm->wpa_key_mgmt, &sm->PTK, data,
+ data_len) &&
+ (msg != PAIRWISE_4 || !sm->alt_snonce_valid ||
+ wpa_try_alt_snonce(sm, data, data_len))) {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
"received EAPOL-Key with invalid MIC");
return;
*/
if (msg == SMK_ERROR) {
#ifdef CONFIG_PEERKEY
- wpa_smk_error(wpa_auth, sm, key);
+ wpa_smk_error(wpa_auth, sm, key_data, key_data_length);
#endif /* CONFIG_PEERKEY */
return;
} else if (key_info & WPA_KEY_INFO_ERROR) {
- wpa_receive_error_report(
- wpa_auth, sm,
- !(key_info & WPA_KEY_INFO_KEY_TYPE));
+ if (wpa_receive_error_report(
+ wpa_auth, sm,
+ !(key_info & WPA_KEY_INFO_KEY_TYPE)) > 0)
+ return; /* STA entry was removed */
} else if (key_info & WPA_KEY_INFO_KEY_TYPE) {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
"received EAPOL-Key Request for new "
wpa_request_new_ptk(sm);
#ifdef CONFIG_PEERKEY
} else if (msg == SMK_M1) {
- wpa_smk_m1(wpa_auth, sm, key);
+ wpa_smk_m1(wpa_auth, sm, key, key_data,
+ key_data_length);
#endif /* CONFIG_PEERKEY */
} else if (key_data_length > 0 &&
- wpa_parse_kde_ies((const u8 *) (key + 1),
- key_data_length, &kde) == 0 &&
+ wpa_parse_kde_ies(key_data, key_data_length,
+ &kde) == 0 &&
kde.mac_addr) {
} else {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
#ifdef CONFIG_PEERKEY
if (msg == SMK_M3) {
- wpa_smk_m3(wpa_auth, sm, key);
+ wpa_smk_m3(wpa_auth, sm, key, key_data, key_data_length);
return;
}
#endif /* CONFIG_PEERKEY */
{
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
- size_t len;
+ struct wpa_eapol_key_192 *key192;
+ size_t len, mic_len, keyhdrlen;
int alg;
int key_data_len, pad_len = 0;
u8 *buf, *pos;
int version, pairwise;
int i;
+ u8 *key_data;
+
+ mic_len = wpa_mic_len(sm->wpa_key_mgmt);
+ keyhdrlen = mic_len == 24 ? sizeof(*key192) : sizeof(*key);
- len = sizeof(struct ieee802_1x_hdr) + sizeof(struct wpa_eapol_key);
+ len = sizeof(struct ieee802_1x_hdr) + keyhdrlen;
if (force_version)
version = force_version;
+ else if (sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN ||
+ wpa_key_mgmt_suite_b(sm->wpa_key_mgmt))
+ version = WPA_KEY_INFO_TYPE_AKM_DEFINED;
else if (wpa_use_aes_cmac(sm))
version = WPA_KEY_INFO_TYPE_AES_128_CMAC;
else if (sm->pairwise != WPA_CIPHER_TKIP)
else
version = WPA_KEY_INFO_TYPE_HMAC_MD5_RC4;
- pairwise = key_info & WPA_KEY_INFO_KEY_TYPE;
+ pairwise = !!(key_info & WPA_KEY_INFO_KEY_TYPE);
wpa_printf(MSG_DEBUG, "WPA: Send EAPOL(version=%d secure=%d mic=%d "
"ack=%d install=%d pairwise=%d kde_len=%lu keyidx=%d "
key_data_len = kde_len;
if ((version == WPA_KEY_INFO_TYPE_HMAC_SHA1_AES ||
+ sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN ||
+ wpa_key_mgmt_suite_b(sm->wpa_key_mgmt) ||
version == WPA_KEY_INFO_TYPE_AES_128_CMAC) && encr) {
pad_len = key_data_len % 8;
if (pad_len)
hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
hdr->length = host_to_be16(len - sizeof(*hdr));
key = (struct wpa_eapol_key *) (hdr + 1);
+ key192 = (struct wpa_eapol_key_192 *) (hdr + 1);
+ key_data = ((u8 *) (hdr + 1)) + keyhdrlen;
key->type = sm->wpa == WPA_VERSION_WPA2 ?
EAPOL_KEY_TYPE_RSN : EAPOL_KEY_TYPE_WPA;
WPA_PUT_BE16(key->key_info, key_info);
alg = pairwise ? sm->pairwise : wpa_auth->conf.wpa_group;
- switch (alg) {
- case WPA_CIPHER_CCMP:
- WPA_PUT_BE16(key->key_length, 16);
- break;
- case WPA_CIPHER_GCMP:
- WPA_PUT_BE16(key->key_length, 16);
- break;
- case WPA_CIPHER_TKIP:
- WPA_PUT_BE16(key->key_length, 32);
- break;
- case WPA_CIPHER_WEP40:
- WPA_PUT_BE16(key->key_length, 5);
- break;
- case WPA_CIPHER_WEP104:
- WPA_PUT_BE16(key->key_length, 13);
- break;
- }
+ WPA_PUT_BE16(key->key_length, wpa_cipher_key_len(alg));
if (key_info & WPA_KEY_INFO_SMK_MESSAGE)
WPA_PUT_BE16(key->key_length, 0);
inc_byte_array(sm->key_replay[0].counter, WPA_REPLAY_COUNTER_LEN);
os_memcpy(key->replay_counter, sm->key_replay[0].counter,
WPA_REPLAY_COUNTER_LEN);
+ wpa_hexdump(MSG_DEBUG, "WPA: Replay Counter",
+ key->replay_counter, WPA_REPLAY_COUNTER_LEN);
sm->key_replay[0].valid = TRUE;
if (nonce)
os_memcpy(key->key_rsc, key_rsc, WPA_KEY_RSC_LEN);
if (kde && !encr) {
- os_memcpy(key + 1, kde, kde_len);
- WPA_PUT_BE16(key->key_data_length, kde_len);
+ os_memcpy(key_data, kde, kde_len);
+ if (mic_len == 24)
+ WPA_PUT_BE16(key192->key_data_length, kde_len);
+ else
+ WPA_PUT_BE16(key->key_data_length, kde_len);
} else if (encr && kde) {
buf = os_zalloc(key_data_len);
if (buf == NULL) {
wpa_hexdump_key(MSG_DEBUG, "Plaintext EAPOL-Key Key Data",
buf, key_data_len);
if (version == WPA_KEY_INFO_TYPE_HMAC_SHA1_AES ||
+ sm->wpa_key_mgmt == WPA_KEY_MGMT_OSEN ||
+ wpa_key_mgmt_suite_b(sm->wpa_key_mgmt) ||
version == WPA_KEY_INFO_TYPE_AES_128_CMAC) {
- if (aes_wrap(sm->PTK.kek, (key_data_len - 8) / 8, buf,
- (u8 *) (key + 1))) {
+ if (aes_wrap(sm->PTK.kek, sm->PTK.kek_len,
+ (key_data_len - 8) / 8, buf, key_data)) {
os_free(hdr);
os_free(buf);
return;
}
- WPA_PUT_BE16(key->key_data_length, key_data_len);
- } else {
+ if (mic_len == 24)
+ WPA_PUT_BE16(key192->key_data_length,
+ key_data_len);
+ else
+ WPA_PUT_BE16(key->key_data_length,
+ key_data_len);
+#ifndef CONFIG_NO_RC4
+ } else if (sm->PTK.kek_len == 16) {
u8 ek[32];
os_memcpy(key->key_iv,
sm->group->Counter + WPA_NONCE_LEN - 16, 16);
inc_byte_array(sm->group->Counter, WPA_NONCE_LEN);
os_memcpy(ek, key->key_iv, 16);
- os_memcpy(ek + 16, sm->PTK.kek, 16);
- os_memcpy(key + 1, buf, key_data_len);
- rc4_skip(ek, 32, 256, (u8 *) (key + 1), key_data_len);
- WPA_PUT_BE16(key->key_data_length, key_data_len);
+ os_memcpy(ek + 16, sm->PTK.kek, sm->PTK.kek_len);
+ os_memcpy(key_data, buf, key_data_len);
+ rc4_skip(ek, 32, 256, key_data, key_data_len);
+ if (mic_len == 24)
+ WPA_PUT_BE16(key192->key_data_length,
+ key_data_len);
+ else
+ WPA_PUT_BE16(key->key_data_length,
+ key_data_len);
+#endif /* CONFIG_NO_RC4 */
+ } else {
+ os_free(hdr);
+ os_free(buf);
+ return;
}
os_free(buf);
}
if (key_info & WPA_KEY_INFO_MIC) {
+ u8 *key_mic;
+
if (!sm->PTK_valid) {
wpa_auth_logger(wpa_auth, sm->addr, LOGGER_DEBUG,
"PTK not valid when sending EAPOL-Key "
os_free(hdr);
return;
}
- wpa_eapol_key_mic(sm->PTK.kck, version, (u8 *) hdr, len,
- key->key_mic);
+
+ key_mic = key192->key_mic; /* same offset for key and key192 */
+ wpa_eapol_key_mic(sm->PTK.kck, sm->PTK.kck_len,
+ sm->wpa_key_mgmt, version,
+ (u8 *) hdr, len, key_mic);
+#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) {
+ wpa_auth_logger(wpa_auth, sm->addr, LOGGER_INFO,
+ "Corrupting group EAPOL-Key Key MIC");
+ key_mic[0]++;
+ }
+#endif /* CONFIG_TESTING_OPTIONS */
}
wpa_auth_set_eapol(sm->wpa_auth, sm->addr, WPA_EAPOL_inc_EapolFramesTx,
}
-static int wpa_verify_key_mic(struct wpa_ptk *PTK, u8 *data, size_t data_len)
+static int wpa_verify_key_mic(int akmp, struct wpa_ptk *PTK, u8 *data,
+ size_t data_len)
{
struct ieee802_1x_hdr *hdr;
struct wpa_eapol_key *key;
+ struct wpa_eapol_key_192 *key192;
u16 key_info;
int ret = 0;
- u8 mic[16];
+ u8 mic[WPA_EAPOL_KEY_MIC_MAX_LEN];
+ size_t mic_len = wpa_mic_len(akmp);
if (data_len < sizeof(*hdr) + sizeof(*key))
return -1;
hdr = (struct ieee802_1x_hdr *) data;
key = (struct wpa_eapol_key *) (hdr + 1);
+ key192 = (struct wpa_eapol_key_192 *) (hdr + 1);
key_info = WPA_GET_BE16(key->key_info);
- os_memcpy(mic, key->key_mic, 16);
- os_memset(key->key_mic, 0, 16);
- if (wpa_eapol_key_mic(PTK->kck, key_info & WPA_KEY_INFO_TYPE_MASK,
- data, data_len, key->key_mic) ||
- os_memcmp(mic, key->key_mic, 16) != 0)
+ os_memcpy(mic, key192->key_mic, mic_len);
+ os_memset(key192->key_mic, 0, mic_len);
+ if (wpa_eapol_key_mic(PTK->kck, PTK->kck_len, akmp,
+ key_info & WPA_KEY_INFO_TYPE_MASK,
+ data, data_len, key192->key_mic) ||
+ os_memcmp_const(mic, key192->key_mic, mic_len) != 0)
ret = -1;
- os_memcpy(key->key_mic, mic, 16);
+ os_memcpy(key192->key_mic, mic, mic_len);
return ret;
}
}
-int wpa_auth_sm_event(struct wpa_state_machine *sm, wpa_event event)
+int wpa_auth_sm_event(struct wpa_state_machine *sm, enum wpa_event event)
{
int remove_ptk = 1;
switch (event) {
case WPA_AUTH:
+#ifdef CONFIG_MESH
+ /* PTKs are derived through AMPE */
+ if (wpa_auth_start_ampe(sm->wpa_auth, sm->addr)) {
+ /* not mesh */
+ break;
+ }
+ return 0;
+#endif /* CONFIG_MESH */
case WPA_ASSOC:
break;
case WPA_DEAUTH:
wpa_remove_ptk(sm);
}
- return wpa_sm_step(sm);
-}
-
-
-static enum wpa_alg wpa_alg_enum(int alg)
-{
- switch (alg) {
- case WPA_CIPHER_CCMP:
- return WPA_ALG_CCMP;
- case WPA_CIPHER_GCMP:
- return WPA_ALG_GCMP;
- case WPA_CIPHER_TKIP:
- return WPA_ALG_TKIP;
- case WPA_CIPHER_WEP104:
- case WPA_CIPHER_WEP40:
- return WPA_ALG_WEP;
- default:
- return WPA_ALG_NONE;
+ if (sm->in_step_loop) {
+ /*
+ * wpa_sm_step() is already running - avoid recursive call to
+ * it by making the existing loop process the new update.
+ */
+ sm->changed = TRUE;
+ return 0;
}
+ return wpa_sm_step(sm);
}
group->reject_4way_hs_for_entropy = FALSE;
}
- wpa_group_init_gmk_and_counter(wpa_auth, group);
- wpa_gtk_update(wpa_auth, group);
- wpa_group_config_group_keys(wpa_auth, group);
+ if (wpa_group_init_gmk_and_counter(wpa_auth, group) < 0 ||
+ wpa_gtk_update(wpa_auth, group) < 0 ||
+ wpa_group_config_group_keys(wpa_auth, group) < 0) {
+ wpa_printf(MSG_INFO, "WPA: GMK/GTK setup failed");
+ group->first_sta_seen = FALSE;
+ group->reject_4way_hs_for_entropy = TRUE;
+ }
}
SM_ENTRY_MA(WPA_PTK, AUTHENTICATION2, wpa_ptk);
wpa_group_ensure_init(sm->wpa_auth, sm->group);
+ sm->ReAuthenticationRequest = FALSE;
/*
* Definition of ANonce selection in IEEE Std 802.11i-2004 is somewhat
if (random_get_bytes(sm->ANonce, WPA_NONCE_LEN)) {
wpa_printf(MSG_ERROR, "WPA: Failed to get random data for "
"ANonce.");
- wpa_sta_disconnect(sm->wpa_auth, sm->addr);
+ sm->Disconnect = TRUE;
return;
}
wpa_hexdump(MSG_DEBUG, "WPA: Assign ANonce", sm->ANonce,
WPA_NONCE_LEN);
- sm->ReAuthenticationRequest = FALSE;
/* IEEE 802.11i does not clear TimeoutCtr here, but this is more
* logical place than INITIALIZE since AUTHENTICATION2 can be
* re-entered on ReAuthenticationRequest without going through
#endif /* CONFIG_IEEE80211R */
if (sm->pmksa) {
wpa_printf(MSG_DEBUG, "WPA: PMK from PMKSA cache");
- os_memcpy(sm->PMK, sm->pmksa->pmk, PMK_LEN);
+ os_memcpy(sm->PMK, sm->pmksa->pmk, sm->pmksa->pmk_len);
+ sm->pmk_len = sm->pmksa->pmk_len;
} else if (wpa_auth_get_msk(sm->wpa_auth, sm->addr, msk, &len) == 0) {
+ unsigned int pmk_len;
+
+ if (sm->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192)
+ pmk_len = PMK_LEN_SUITE_B_192;
+ else
+ pmk_len = PMK_LEN;
wpa_printf(MSG_DEBUG, "WPA: PMK from EAPOL state machine "
- "(len=%lu)", (unsigned long) len);
- os_memcpy(sm->PMK, msk, PMK_LEN);
+ "(MSK len=%lu PMK len=%u)", (unsigned long) len,
+ pmk_len);
+ if (len < pmk_len) {
+ wpa_printf(MSG_DEBUG,
+ "WPA: MSK not long enough (%u) to create PMK (%u)",
+ (unsigned int) len, (unsigned int) pmk_len);
+ sm->Disconnect = TRUE;
+ return;
+ }
+ os_memcpy(sm->PMK, msk, pmk_len);
+ sm->pmk_len = pmk_len;
#ifdef CONFIG_IEEE80211R
if (len >= 2 * PMK_LEN) {
os_memcpy(sm->xxkey, msk + PMK_LEN, PMK_LEN);
}
#endif /* CONFIG_IEEE80211R */
} else {
- wpa_printf(MSG_DEBUG, "WPA: Could not get PMK");
+ wpa_printf(MSG_DEBUG, "WPA: Could not get PMK, get_msk: %p",
+ sm->wpa_auth->cb.get_msk);
+ sm->Disconnect = TRUE;
+ return;
}
+ os_memset(msk, 0, sizeof(msk));
sm->req_replay_counter_used = 0;
/* IEEE 802.11i does not set keyRun to FALSE, but not doing this
{
const u8 *psk;
SM_ENTRY_MA(WPA_PTK, INITPSK, wpa_ptk);
- psk = wpa_auth_get_psk(sm->wpa_auth, sm->addr, NULL);
+ psk = wpa_auth_get_psk(sm->wpa_auth, sm->addr, sm->p2p_dev_addr, NULL);
if (psk) {
os_memcpy(sm->PMK, psk, PMK_LEN);
+ sm->pmk_len = PMK_LEN;
#ifdef CONFIG_IEEE80211R
os_memcpy(sm->xxkey, psk, PMK_LEN);
sm->xxkey_len = PMK_LEN;
SM_ENTRY_MA(WPA_PTK, PTKSTART, wpa_ptk);
sm->PTKRequest = FALSE;
sm->TimeoutEvt = FALSE;
+ sm->alt_snonce_valid = FALSE;
sm->TimeoutCtr++;
if (sm->TimeoutCtr > (int) dot11RSNAConfigPairwiseUpdateCount) {
* one possible PSK for this STA.
*/
if (sm->wpa == WPA_VERSION_WPA2 &&
- wpa_key_mgmt_wpa_ieee8021x(sm->wpa_key_mgmt)) {
+ wpa_key_mgmt_wpa_ieee8021x(sm->wpa_key_mgmt) &&
+ sm->wpa_key_mgmt != WPA_KEY_MGMT_OSEN) {
pmkid = buf;
pmkid_len = 2 + RSN_SELECTOR_LEN + PMKID_LEN;
pmkid[0] = WLAN_EID_VENDOR_SPECIFIC;
pmkid[1] = RSN_SELECTOR_LEN + PMKID_LEN;
RSN_SELECTOR_PUT(&pmkid[2], RSN_KEY_DATA_PMKID);
- if (sm->pmksa)
+ if (sm->pmksa) {
os_memcpy(&pmkid[2 + RSN_SELECTOR_LEN],
sm->pmksa->pmkid, PMKID_LEN);
- else {
+ } else if (wpa_key_mgmt_suite_b(sm->wpa_key_mgmt)) {
+ /* No KCK available to derive PMKID */
+ pmkid = NULL;
+ } else {
/*
* Calculate PMKID since no PMKSA cache entry was
* available with pre-calculated PMKID.
*/
- rsn_pmkid(sm->PMK, PMK_LEN, sm->wpa_auth->addr,
+ rsn_pmkid(sm->PMK, sm->pmk_len, sm->wpa_auth->addr,
sm->addr, &pmkid[2 + RSN_SELECTOR_LEN],
wpa_key_mgmt_sha256(sm->wpa_key_mgmt));
}
}
-static int wpa_derive_ptk(struct wpa_state_machine *sm, const u8 *pmk,
+static int wpa_derive_ptk(struct wpa_state_machine *sm, const u8 *snonce,
+ const u8 *pmk, unsigned int pmk_len,
struct wpa_ptk *ptk)
{
- size_t ptk_len = sm->pairwise != WPA_CIPHER_TKIP ? 48 : 64;
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->wpa_key_mgmt))
- return wpa_auth_derive_ptk_ft(sm, pmk, ptk, ptk_len);
+ return wpa_auth_derive_ptk_ft(sm, pmk, ptk);
#endif /* CONFIG_IEEE80211R */
- wpa_pmk_to_ptk(pmk, PMK_LEN, "Pairwise key expansion",
- sm->wpa_auth->addr, sm->addr, sm->ANonce, sm->SNonce,
- (u8 *) ptk, ptk_len,
- wpa_key_mgmt_sha256(sm->wpa_key_mgmt));
-
- return 0;
+ return wpa_pmk_to_ptk(pmk, pmk_len, "Pairwise key expansion",
+ sm->wpa_auth->addr, sm->addr, sm->ANonce, snonce,
+ ptk, sm->wpa_key_mgmt, sm->pairwise);
}
SM_STATE(WPA_PTK, PTKCALCNEGOTIATING)
{
struct wpa_ptk PTK;
- int ok = 0;
+ int ok = 0, psk_found = 0;
const u8 *pmk = NULL;
+ unsigned int pmk_len;
SM_ENTRY_MA(WPA_PTK, PTKCALCNEGOTIATING, wpa_ptk);
sm->EAPOLKeyReceived = FALSE;
* the packet */
for (;;) {
if (wpa_key_mgmt_wpa_psk(sm->wpa_key_mgmt)) {
- pmk = wpa_auth_get_psk(sm->wpa_auth, sm->addr, pmk);
+ pmk = wpa_auth_get_psk(sm->wpa_auth, sm->addr,
+ sm->p2p_dev_addr, pmk);
if (pmk == NULL)
break;
- } else
+ psk_found = 1;
+ pmk_len = PMK_LEN;
+ } else {
pmk = sm->PMK;
+ pmk_len = sm->pmk_len;
+ }
- wpa_derive_ptk(sm, pmk, &PTK);
+ wpa_derive_ptk(sm, sm->SNonce, pmk, pmk_len, &PTK);
- if (wpa_verify_key_mic(&PTK, sm->last_rx_eapol_key,
+ if (wpa_verify_key_mic(sm->wpa_key_mgmt, &PTK,
+ sm->last_rx_eapol_key,
sm->last_rx_eapol_key_len) == 0) {
ok = 1;
break;
if (!ok) {
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_DEBUG,
"invalid MIC in msg 2/4 of 4-Way Handshake");
+ if (psk_found)
+ wpa_auth_psk_failure_report(sm->wpa_auth, sm->addr);
return;
}
* Verify that PMKR1Name from EAPOL-Key message 2/4 matches
* with the value we derived.
*/
- if (os_memcmp(sm->sup_pmk_r1_name, sm->pmk_r1_name,
- WPA_PMK_NAME_LEN) != 0) {
+ if (os_memcmp_const(sm->sup_pmk_r1_name, sm->pmk_r1_name,
+ WPA_PMK_NAME_LEN) != 0) {
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_DEBUG,
"PMKR1Name mismatch in FT 4-way "
"handshake");
* state machine data based on whatever PSK was selected here.
*/
os_memcpy(sm->PMK, pmk, PMK_LEN);
+ sm->pmk_len = PMK_LEN;
}
sm->MICVerified = TRUE;
static int ieee80211w_kde_len(struct wpa_state_machine *sm)
{
if (sm->mgmt_frame_prot) {
- return 2 + RSN_SELECTOR_LEN + sizeof(struct wpa_igtk_kde);
+ size_t len;
+ len = wpa_cipher_key_len(sm->wpa_auth->conf.group_mgmt_cipher);
+ return 2 + RSN_SELECTOR_LEN + WPA_IGTK_KDE_PREFIX_LEN + len;
}
return 0;
{
struct wpa_igtk_kde igtk;
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);
if (!sm->mgmt_frame_prot)
return pos;
igtk.keyid[0] = gsm->GN_igtk;
igtk.keyid[1] = 0;
if (gsm->wpa_group_state != WPA_GROUP_SETKEYSDONE ||
- wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, igtk.pn) < 0)
+ wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, rsc) < 0)
os_memset(igtk.pn, 0, sizeof(igtk.pn));
- os_memcpy(igtk.igtk, gsm->IGTK[gsm->GN_igtk - 4], WPA_IGTK_LEN);
+ 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) {
/*
* Provide unique random IGTK to each STA to prevent use of
* IGTK in the BSS.
*/
- if (random_get_bytes(igtk.igtk, WPA_IGTK_LEN) < 0)
+ if (random_get_bytes(igtk.igtk, len) < 0)
return pos;
}
pos = wpa_add_kde(pos, RSN_KEY_DATA_IGTK,
- (const u8 *) &igtk, sizeof(igtk), NULL, 0);
+ (const u8 *) &igtk, WPA_IGTK_KDE_PREFIX_LEN + len,
+ NULL, 0);
return pos;
}
if (sm->wpa == WPA_VERSION_WPA &&
(sm->wpa_auth->conf.wpa & WPA_PROTO_RSN) &&
wpa_ie_len > wpa_ie[1] + 2 && wpa_ie[0] == WLAN_EID_RSN) {
- /* WPA-only STA, remove RSN IE */
+ /* WPA-only STA, remove RSN IE and possible MDIE */
wpa_ie = wpa_ie + wpa_ie[1] + 2;
+ if (wpa_ie[0] == WLAN_EID_MOBILITY_DOMAIN)
+ wpa_ie = wpa_ie + wpa_ie[1] + 2;
wpa_ie_len = wpa_ie[1] + 2;
}
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_DEBUG,
kde_len += 300; /* FTIE + 2 * TIE */
}
#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_P2P
+ if (WPA_GET_BE32(sm->ip_addr) > 0)
+ kde_len += 2 + RSN_SELECTOR_LEN + 3 * 4;
+#endif /* CONFIG_P2P */
kde = os_malloc(kde_len);
if (kde == NULL)
return;
pos += wpa_ie_len;
#ifdef CONFIG_IEEE80211R
if (wpa_key_mgmt_ft(sm->wpa_key_mgmt)) {
- int res = wpa_insert_pmkid(kde, pos - kde, sm->pmk_r1_name);
+ int res;
+ size_t elen;
+
+ elen = pos - kde;
+ res = wpa_insert_pmkid(kde, &elen, sm->pmk_r1_name);
if (res < 0) {
wpa_printf(MSG_ERROR, "FT: Failed to insert "
"PMKR1Name into RSN IE in EAPOL-Key data");
os_free(kde);
return;
}
- pos += res;
+ pos -= wpa_ie_len;
+ pos += elen;
}
#endif /* CONFIG_IEEE80211R */
if (gtk) {
struct wpa_auth_config *conf;
conf = &sm->wpa_auth->conf;
- res = wpa_write_ftie(conf, conf->r0_key_holder,
- conf->r0_key_holder_len,
- NULL, NULL, pos, kde + kde_len - pos,
- NULL, 0);
+ if (sm->assoc_resp_ftie &&
+ kde + kde_len - pos >= 2 + sm->assoc_resp_ftie[1]) {
+ os_memcpy(pos, sm->assoc_resp_ftie,
+ 2 + sm->assoc_resp_ftie[1]);
+ res = 2 + sm->assoc_resp_ftie[1];
+ } else {
+ res = wpa_write_ftie(conf, conf->r0_key_holder,
+ conf->r0_key_holder_len,
+ NULL, NULL, pos,
+ kde + kde_len - pos,
+ NULL, 0);
+ }
if (res < 0) {
wpa_printf(MSG_ERROR, "FT: Failed to insert FTIE "
"into EAPOL-Key Key Data");
pos += 4;
}
#endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_P2P
+ 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);
+ pos = wpa_add_kde(pos, WFA_KEY_DATA_IP_ADDR_ALLOC,
+ addr, sizeof(addr), NULL, 0);
+ }
+#endif /* CONFIG_P2P */
wpa_send_eapol(sm->wpa_auth, sm,
(secure ? WPA_KEY_INFO_SECURE : 0) | WPA_KEY_INFO_MIC |
SM_ENTRY_MA(WPA_PTK, PTKINITDONE, wpa_ptk);
sm->EAPOLKeyReceived = FALSE;
if (sm->Pair) {
- enum wpa_alg alg;
- int klen;
- if (sm->pairwise == WPA_CIPHER_TKIP) {
- alg = WPA_ALG_TKIP;
- klen = 32;
- } else if (sm->pairwise == WPA_CIPHER_GCMP) {
- alg = WPA_ALG_GCMP;
- klen = 16;
- } else {
- alg = WPA_ALG_CCMP;
- klen = 16;
- }
+ enum wpa_alg alg = wpa_cipher_to_alg(sm->pairwise);
+ int klen = wpa_cipher_key_len(sm->pairwise);
if (wpa_auth_set_key(sm->wpa_auth, 0, alg, sm->addr, 0,
- sm->PTK.tk1, klen)) {
+ sm->PTK.tk, klen)) {
wpa_sta_disconnect(sm->wpa_auth, sm->addr);
return;
}
}
break;
case WPA_PTK_INITPSK:
- if (wpa_auth_get_psk(sm->wpa_auth, sm->addr, NULL))
+ if (wpa_auth_get_psk(sm->wpa_auth, sm->addr, sm->p2p_dev_addr,
+ NULL))
SM_ENTER(WPA_PTK, PTKSTART);
else {
wpa_auth_logger(sm->wpa_auth, sm->addr, LOGGER_INFO,
{
u8 rsc[WPA_KEY_RSC_LEN];
struct wpa_group *gsm = sm->group;
- u8 *kde, *pos, hdr[2];
+ const u8 *kde;
+ u8 *kde_buf = NULL, *pos, hdr[2];
size_t kde_len;
u8 *gtk, dummy_gtk[32];
if (sm->wpa == WPA_VERSION_WPA2) {
kde_len = 2 + RSN_SELECTOR_LEN + 2 + gsm->GTK_len +
ieee80211w_kde_len(sm);
- kde = os_malloc(kde_len);
- if (kde == NULL)
+ kde_buf = os_malloc(kde_len);
+ if (kde_buf == NULL)
return;
- pos = kde;
+ kde = pos = kde_buf;
hdr[0] = gsm->GN & 0x03;
hdr[1] = 0;
pos = wpa_add_kde(pos, RSN_KEY_DATA_GROUPKEY, hdr, 2,
gtk, gsm->GTK_len);
pos = ieee80211w_kde_add(sm, pos);
+ kde_len = pos - kde;
} else {
kde = gtk;
- pos = kde + gsm->GTK_len;
+ kde_len = gsm->GTK_len;
}
wpa_send_eapol(sm->wpa_auth, sm,
WPA_KEY_INFO_SECURE | WPA_KEY_INFO_MIC |
WPA_KEY_INFO_ACK |
(!sm->Pair ? WPA_KEY_INFO_INSTALL : 0),
- rsc, gsm->GNonce, kde, pos - kde, gsm->GN, 1);
- if (sm->wpa == WPA_VERSION_WPA2)
- os_free(kde);
+ rsc, gsm->GNonce, kde, kde_len, gsm->GN, 1);
+
+ os_free(kde_buf);
}
#ifdef CONFIG_IEEE80211W
if (wpa_auth->conf.ieee80211w != NO_MGMT_FRAME_PROTECTION) {
+ size_t len;
+ len = wpa_cipher_key_len(wpa_auth->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",
wpa_auth->addr, group->GNonce,
- group->IGTK[group->GN_igtk - 4],
- WPA_IGTK_LEN) < 0)
+ group->IGTK[group->GN_igtk - 4], len) < 0)
ret = -1;
wpa_hexdump_key(MSG_DEBUG, "IGTK",
- group->IGTK[group->GN_igtk - 4], WPA_IGTK_LEN);
+ group->IGTK[group->GN_igtk - 4], len);
}
#endif /* CONFIG_IEEE80211W */
"marking station for GTK rekeying");
}
-#ifdef CONFIG_IEEE80211V
- /* Do not rekey GTK/IGTK when STA is in wnmsleep */
+ /* Do not rekey GTK/IGTK when STA is in WNM-Sleep Mode */
if (sm->is_wnmsleep)
return 0;
-#endif /* CONFIG_IEEE80211V */
sm->group->GKeyDoneStations++;
sm->GUpdateStationKeys = TRUE;
}
-#ifdef CONFIG_IEEE80211V
-/* update GTK when exiting wnmsleep mode */
+#ifdef CONFIG_WNM
+/* update GTK when exiting WNM-Sleep Mode */
void wpa_wnmsleep_rekey_gtk(struct wpa_state_machine *sm)
{
- if (sm->is_wnmsleep)
+ if (sm == NULL || sm->is_wnmsleep)
return;
wpa_group_update_sta(sm, NULL);
void wpa_set_wnmsleep(struct wpa_state_machine *sm, int flag)
{
- sm->is_wnmsleep = !!flag;
+ if (sm)
+ sm->is_wnmsleep = !!flag;
}
int wpa_wnmsleep_gtk_subelem(struct wpa_state_machine *sm, u8 *pos)
{
- u8 *subelem;
struct wpa_group *gsm = sm->group;
- size_t subelem_len, pad_len;
- const u8 *key;
- size_t key_len;
- u8 keybuf[32];
-
- /* GTK subslement */
- key_len = gsm->GTK_len;
- if (key_len > sizeof(keybuf))
- return 0;
-
- /*
- * Pad key for AES Key Wrap if it is not multiple of 8 bytes or is less
- * than 16 bytes.
- */
- pad_len = key_len % 8;
- if (pad_len)
- pad_len = 8 - pad_len;
- if (key_len + pad_len < 16)
- pad_len += 8;
- if (pad_len) {
- os_memcpy(keybuf, gsm->GTK[gsm->GN - 1], key_len);
- os_memset(keybuf + key_len, 0, pad_len);
- keybuf[key_len] = 0xdd;
- key_len += pad_len;
- key = keybuf;
- } else
- key = gsm->GTK[gsm->GN - 1];
+ u8 *start = pos;
/*
+ * GTK subelement:
* Sub-elem ID[1] | Length[1] | Key Info[2] | Key Length[1] | RSC[8] |
- * Key[5..32] | 8 padding.
+ * Key[5..32]
*/
- subelem_len = 13 + key_len + 8;
- subelem = os_zalloc(subelem_len);
- if (subelem == NULL)
- return 0;
-
- subelem[0] = WNM_SLEEP_SUBELEM_GTK;
- subelem[1] = 11 + key_len + 8;
+ *pos++ = WNM_SLEEP_SUBELEM_GTK;
+ *pos++ = 11 + gsm->GTK_len;
/* Key ID in B0-B1 of Key Info */
- WPA_PUT_LE16(&subelem[2], gsm->GN & 0x03);
- subelem[4] = gsm->GTK_len;
- if (wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, subelem + 5) != 0)
- {
- os_free(subelem);
+ WPA_PUT_LE16(pos, gsm->GN & 0x03);
+ pos += 2;
+ *pos++ = gsm->GTK_len;
+ if (wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN, pos) != 0)
return 0;
- }
- if (aes_wrap(sm->PTK.kek, key_len / 8, key, subelem + 13)) {
- os_free(subelem);
- return 0;
- }
-
- os_memcpy(pos, subelem, subelem_len);
+ pos += 8;
+ os_memcpy(pos, gsm->GTK[gsm->GN - 1], gsm->GTK_len);
+ pos += gsm->GTK_len;
- wpa_hexdump_key(MSG_DEBUG, "Plaintext GTK",
+ wpa_printf(MSG_DEBUG, "WNM: GTK Key ID %u in WNM-Sleep Mode exit",
+ gsm->GN);
+ wpa_hexdump_key(MSG_DEBUG, "WNM: GTK in WNM-Sleep Mode exit",
gsm->GTK[gsm->GN - 1], gsm->GTK_len);
- os_free(subelem);
- return subelem_len;
+ return pos - start;
}
#ifdef CONFIG_IEEE80211W
int wpa_wnmsleep_igtk_subelem(struct wpa_state_machine *sm, u8 *pos)
{
- u8 *subelem, *ptr;
struct wpa_group *gsm = sm->group;
- size_t subelem_len;
-
- /* IGTK subelement
- * Sub-elem ID[1] | Length[1] | KeyID[2] | PN[6] |
- * Key[16] | 8 padding */
- subelem_len = 1 + 1 + 2 + 6 + WPA_IGTK_LEN + 8;
- subelem = os_zalloc(subelem_len);
- if (subelem == NULL)
- return 0;
+ u8 *start = pos;
+ size_t len = wpa_cipher_key_len(sm->wpa_auth->conf.group_mgmt_cipher);
- ptr = subelem;
- *ptr++ = WNM_SLEEP_SUBELEM_IGTK;
- *ptr++ = subelem_len - 2;
- WPA_PUT_LE16(ptr, gsm->GN_igtk);
- ptr += 2;
- if (wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, ptr) != 0) {
- os_free(subelem);
+ /*
+ * IGTK subelement:
+ * Sub-elem ID[1] | Length[1] | KeyID[2] | PN[6] | Key[16]
+ */
+ *pos++ = WNM_SLEEP_SUBELEM_IGTK;
+ *pos++ = 2 + 6 + len;
+ WPA_PUT_LE16(pos, gsm->GN_igtk);
+ pos += 2;
+ if (wpa_auth_get_seqnum(sm->wpa_auth, NULL, gsm->GN_igtk, pos) != 0)
return 0;
- }
- ptr += 6;
- if (aes_wrap(sm->PTK.kek, WPA_IGTK_LEN / 8,
- gsm->IGTK[gsm->GN_igtk - 4], ptr)) {
- os_free(subelem);
- return -1;
- }
+ pos += 6;
- os_memcpy(pos, subelem, subelem_len);
+ os_memcpy(pos, gsm->IGTK[gsm->GN_igtk - 4], len);
+ pos += len;
- wpa_hexdump_key(MSG_DEBUG, "Plaintext IGTK",
- gsm->IGTK[gsm->GN_igtk - 4], WPA_IGTK_LEN);
- os_free(subelem);
+ wpa_printf(MSG_DEBUG, "WNM: IGTK Key ID %u in WNM-Sleep Mode exit",
+ gsm->GN_igtk);
+ wpa_hexdump_key(MSG_DEBUG, "WNM: IGTK in WNM-Sleep Mode exit",
+ gsm->IGTK[gsm->GN_igtk - 4], len);
- return subelem_len;
+ return pos - start;
}
#endif /* CONFIG_IEEE80211W */
-#endif /* CONFIG_IEEE80211V */
+#endif /* CONFIG_WNM */
static void wpa_group_setkeys(struct wpa_authenticator *wpa_auth,
int ret = 0;
if (wpa_auth_set_key(wpa_auth, group->vlan_id,
- wpa_alg_enum(wpa_auth->conf.wpa_group),
+ wpa_cipher_to_alg(wpa_auth->conf.wpa_group),
broadcast_ether_addr, group->GN,
group->GTK[group->GN - 1], group->GTK_len) < 0)
ret = -1;
#ifdef CONFIG_IEEE80211W
- if (wpa_auth->conf.ieee80211w != NO_MGMT_FRAME_PROTECTION &&
- wpa_auth_set_key(wpa_auth, group->vlan_id, WPA_ALG_IGTK,
- broadcast_ether_addr, group->GN_igtk,
- group->IGTK[group->GN_igtk - 4],
- WPA_IGTK_LEN) < 0)
- ret = -1;
+ if (wpa_auth->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);
+
+ if (ret == 0 &&
+ wpa_auth_set_key(wpa_auth, group->vlan_id, alg,
+ broadcast_ether_addr, group->GN_igtk,
+ group->IGTK[group->GN_igtk - 4], len) < 0)
+ ret = -1;
+ }
#endif /* CONFIG_IEEE80211W */
return ret;
}
+static int wpa_group_disconnect_cb(struct wpa_state_machine *sm, void *ctx)
+{
+ if (sm->group == ctx) {
+ wpa_printf(MSG_DEBUG, "WPA: Mark STA " MACSTR
+ " for discconnection due to fatal failure",
+ MAC2STR(sm->addr));
+ sm->Disconnect = TRUE;
+ }
+
+ return 0;
+}
+
+
+static void wpa_group_fatal_failure(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group)
+{
+ wpa_printf(MSG_DEBUG, "WPA: group state machine entering state FATAL_FAILURE");
+ group->changed = TRUE;
+ group->wpa_group_state = WPA_GROUP_FATAL_FAILURE;
+ wpa_auth_for_each_sta(wpa_auth, wpa_group_disconnect_cb, group);
+}
+
+
static int wpa_group_setkeysdone(struct wpa_authenticator *wpa_auth,
struct wpa_group *group)
{
group->changed = TRUE;
group->wpa_group_state = WPA_GROUP_SETKEYSDONE;
- if (wpa_group_config_group_keys(wpa_auth, group) < 0)
+ if (wpa_group_config_group_keys(wpa_auth, group) < 0) {
+ wpa_group_fatal_failure(wpa_auth, group);
return -1;
+ }
return 0;
}
{
if (group->GInit) {
wpa_group_gtk_init(wpa_auth, group);
+ } else if (group->wpa_group_state == WPA_GROUP_FATAL_FAILURE) {
+ /* Do not allow group operations */
} else if (group->wpa_group_state == WPA_GROUP_GTK_INIT &&
group->GTKAuthenticator) {
wpa_group_setkeysdone(wpa_auth, group);
}
-static const char * wpa_bool_txt(int bool)
+static const char * wpa_bool_txt(int val)
{
- return bool ? "TRUE" : "FALSE";
-}
-
-
-static int wpa_cipher_bits(int cipher)
-{
- switch (cipher) {
- case WPA_CIPHER_CCMP:
- return 128;
- case WPA_CIPHER_GCMP:
- return 128;
- case WPA_CIPHER_TKIP:
- return 256;
- case WPA_CIPHER_WEP104:
- return 104;
- case WPA_CIPHER_WEP40:
- return 40;
- default:
- return 0;
- }
+ return val ? "TRUE" : "FALSE";
}
wpa_bool_txt(preauth),
wpa_bool_txt(wpa_auth->conf.wpa & WPA_PROTO_RSN),
wpa_bool_txt(wpa_auth->conf.rsn_preauth));
- if (ret < 0 || (size_t) ret >= buflen - len)
+ if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
!!wpa_auth->conf.wpa_strict_rekey,
dot11RSNAConfigGroupUpdateCount,
dot11RSNAConfigPairwiseUpdateCount,
- wpa_cipher_bits(wpa_auth->conf.wpa_group),
+ wpa_cipher_key_len(wpa_auth->conf.wpa_group) * 8,
dot11RSNAConfigPMKLifetime,
dot11RSNAConfigPMKReauthThreshold,
dot11RSNAConfigSATimeout,
RSN_SUITE_ARG(wpa_auth->dot11RSNAGroupCipherRequested),
wpa_auth->dot11RSNATKIPCounterMeasuresInvoked,
wpa_auth->dot11RSNA4WayHandshakeFailures);
- if (ret < 0 || (size_t) ret >= buflen - len)
+ if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
/* Private MIB */
ret = os_snprintf(buf + len, buflen - len, "hostapdWPAGroupState=%d\n",
wpa_auth->group->wpa_group_state);
- if (ret < 0 || (size_t) ret >= buflen - len)
+ if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
/* dot11RSNAStatsEntry */
- if (sm->wpa == WPA_VERSION_WPA) {
- if (sm->pairwise == WPA_CIPHER_CCMP)
- pairwise = WPA_CIPHER_SUITE_CCMP;
- else if (sm->pairwise == WPA_CIPHER_TKIP)
- pairwise = WPA_CIPHER_SUITE_TKIP;
- else if (sm->pairwise == WPA_CIPHER_WEP104)
- pairwise = WPA_CIPHER_SUITE_WEP104;
- else if (sm->pairwise == WPA_CIPHER_WEP40)
- pairwise = WPA_CIPHER_SUITE_WEP40;
- else if (sm->pairwise == WPA_CIPHER_NONE)
- pairwise = WPA_CIPHER_SUITE_NONE;
- } else if (sm->wpa == WPA_VERSION_WPA2) {
- if (sm->pairwise == WPA_CIPHER_CCMP)
- pairwise = RSN_CIPHER_SUITE_CCMP;
- else if (sm->pairwise == WPA_CIPHER_GCMP)
- pairwise = RSN_CIPHER_SUITE_GCMP;
- else if (sm->pairwise == WPA_CIPHER_TKIP)
- pairwise = RSN_CIPHER_SUITE_TKIP;
- else if (sm->pairwise == WPA_CIPHER_WEP104)
- pairwise = RSN_CIPHER_SUITE_WEP104;
- else if (sm->pairwise == WPA_CIPHER_WEP40)
- pairwise = RSN_CIPHER_SUITE_WEP40;
- else if (sm->pairwise == WPA_CIPHER_NONE)
- pairwise = RSN_CIPHER_SUITE_NONE;
- } else
+ pairwise = wpa_cipher_to_suite(sm->wpa == WPA_VERSION_WPA2 ?
+ WPA_PROTO_RSN : WPA_PROTO_WPA,
+ sm->pairwise);
+ if (pairwise == 0)
return 0;
ret = os_snprintf(
RSN_SUITE_ARG(pairwise),
sm->dot11RSNAStatsTKIPLocalMICFailures,
sm->dot11RSNAStatsTKIPRemoteMICFailures);
- if (ret < 0 || (size_t) ret >= buflen - len)
+ if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
"hostapdWPAPTKGroupState=%d\n",
sm->wpa_ptk_state,
sm->wpa_ptk_group_state);
- if (ret < 0 || (size_t) ret >= buflen - len)
+ if (os_snprintf_error(buflen - len, ret))
return len;
len += ret;
int wpa_auth_pmksa_add(struct wpa_state_machine *sm, const u8 *pmk,
+ unsigned int pmk_len,
int session_timeout, struct eapol_state_machine *eapol)
{
if (sm == NULL || sm->wpa != WPA_VERSION_WPA2 ||
sm->wpa_auth->conf.disable_pmksa_caching)
return -1;
- if (pmksa_cache_auth_add(sm->wpa_auth->pmksa, pmk, PMK_LEN,
+ if (sm->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
+ if (pmk_len > PMK_LEN_SUITE_B_192)
+ pmk_len = PMK_LEN_SUITE_B_192;
+ } else if (pmk_len > PMK_LEN) {
+ pmk_len = PMK_LEN;
+ }
+
+ if (pmksa_cache_auth_add(sm->wpa_auth->pmksa, pmk, pmk_len, NULL,
+ sm->PTK.kck, sm->PTK.kck_len,
sm->wpa_auth->addr, sm->addr, session_timeout,
eapol, sm->wpa_key_mgmt))
return 0;
if (wpa_auth == NULL)
return -1;
- if (pmksa_cache_auth_add(wpa_auth->pmksa, pmk, len, wpa_auth->addr,
+ if (pmksa_cache_auth_add(wpa_auth->pmksa, pmk, len, NULL,
+ NULL, 0,
+ wpa_auth->addr,
sta_addr, session_timeout, eapol,
WPA_KEY_MGMT_IEEE8021X))
return 0;
}
+int wpa_auth_pmksa_add_sae(struct wpa_authenticator *wpa_auth, const u8 *addr,
+ const u8 *pmk, const u8 *pmkid)
+{
+ if (wpa_auth->conf.disable_pmksa_caching)
+ return -1;
+
+ if (pmksa_cache_auth_add(wpa_auth->pmksa, pmk, PMK_LEN, pmkid,
+ NULL, 0,
+ wpa_auth->addr, addr, 0, NULL,
+ WPA_KEY_MGMT_SAE))
+ return 0;
+
+ return -1;
+}
+
+
+void wpa_auth_pmksa_remove(struct wpa_authenticator *wpa_auth,
+ const u8 *sta_addr)
+{
+ struct rsn_pmksa_cache_entry *pmksa;
+
+ if (wpa_auth == NULL || wpa_auth->pmksa == NULL)
+ return;
+ pmksa = pmksa_cache_auth_get(wpa_auth->pmksa, sta_addr, NULL);
+ if (pmksa) {
+ wpa_printf(MSG_DEBUG, "WPA: Remove PMKSA cache entry for "
+ MACSTR " based on request", MAC2STR(sta_addr));
+ pmksa_cache_free_entry(wpa_auth->pmksa, pmksa);
+ }
+}
+
+
+int wpa_auth_pmksa_list(struct wpa_authenticator *wpa_auth, char *buf,
+ size_t len)
+{
+ if (!wpa_auth || !wpa_auth->pmksa)
+ return 0;
+ return pmksa_cache_auth_list(wpa_auth->pmksa, buf, len);
+}
+
+
+/*
+ * Remove and free the group from wpa_authenticator. This is triggered by a
+ * callback to make sure nobody is currently iterating the group list while it
+ * gets modified.
+ */
+static void wpa_group_free(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group)
+{
+ struct wpa_group *prev = wpa_auth->group;
+
+ wpa_printf(MSG_DEBUG, "WPA: Remove group state machine for VLAN-ID %d",
+ group->vlan_id);
+
+ while (prev) {
+ if (prev->next == group) {
+ /* This never frees the special first group as needed */
+ prev->next = group->next;
+ os_free(group);
+ break;
+ }
+ prev = prev->next;
+ }
+
+}
+
+
+/* Increase the reference counter for group */
+static void wpa_group_get(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group)
+{
+ /* Skip the special first group */
+ if (wpa_auth->group == group)
+ return;
+
+ group->references++;
+}
+
+
+/* Decrease the reference counter and maybe free the group */
+static void wpa_group_put(struct wpa_authenticator *wpa_auth,
+ struct wpa_group *group)
+{
+ /* Skip the special first group */
+ if (wpa_auth->group == group)
+ return;
+
+ group->references--;
+ if (group->references)
+ return;
+ wpa_group_free(wpa_auth, group);
+}
+
+
+/*
+ * Add a group that has its references counter set to zero. Caller needs to
+ * call wpa_group_get() on the return value to mark the entry in use.
+ */
static struct wpa_group *
wpa_auth_add_group(struct wpa_authenticator *wpa_auth, int vlan_id)
{
}
+/*
+ * Enforce that the group state machine for the VLAN is running, increase
+ * reference counter as interface is up. References might have been increased
+ * even if a negative value is returned.
+ * Returns: -1 on error (group missing, group already failed); otherwise, 0
+ */
+int wpa_auth_ensure_group(struct wpa_authenticator *wpa_auth, int vlan_id)
+{
+ struct wpa_group *group;
+
+ if (wpa_auth == NULL)
+ return 0;
+
+ group = wpa_auth->group;
+ while (group) {
+ if (group->vlan_id == vlan_id)
+ break;
+ group = group->next;
+ }
+
+ if (group == NULL) {
+ group = wpa_auth_add_group(wpa_auth, vlan_id);
+ if (group == NULL)
+ return -1;
+ }
+
+ wpa_printf(MSG_DEBUG,
+ "WPA: Ensure group state machine running for VLAN ID %d",
+ vlan_id);
+
+ wpa_group_get(wpa_auth, group);
+ group->num_setup_iface++;
+
+ if (group->wpa_group_state == WPA_GROUP_FATAL_FAILURE)
+ return -1;
+
+ return 0;
+}
+
+
+/*
+ * Decrease reference counter, expected to be zero afterwards.
+ * returns: -1 on error (group not found, group in fail state)
+ * -2 if wpa_group is still referenced
+ * 0 else
+ */
+int wpa_auth_release_group(struct wpa_authenticator *wpa_auth, int vlan_id)
+{
+ struct wpa_group *group;
+ int ret = 0;
+
+ if (wpa_auth == NULL)
+ return 0;
+
+ group = wpa_auth->group;
+ while (group) {
+ if (group->vlan_id == vlan_id)
+ break;
+ group = group->next;
+ }
+
+ if (group == NULL)
+ return -1;
+
+ wpa_printf(MSG_DEBUG,
+ "WPA: Try stopping group state machine for VLAN ID %d",
+ vlan_id);
+
+ if (group->num_setup_iface <= 0) {
+ wpa_printf(MSG_ERROR,
+ "WPA: wpa_auth_release_group called more often than wpa_auth_ensure_group for VLAN ID %d, skipping.",
+ vlan_id);
+ return -1;
+ }
+ group->num_setup_iface--;
+
+ if (group->wpa_group_state == WPA_GROUP_FATAL_FAILURE)
+ ret = -1;
+
+ if (group->references > 1) {
+ wpa_printf(MSG_DEBUG,
+ "WPA: Cannot stop group state machine for VLAN ID %d as references are still hold",
+ vlan_id);
+ ret = -2;
+ }
+
+ wpa_group_put(wpa_auth, group);
+
+ return ret;
+}
+
+
int wpa_auth_sta_set_vlan(struct wpa_state_machine *sm, int vlan_id)
{
struct wpa_group *group;
if (sm->group == group)
return 0;
+ if (group->wpa_group_state == WPA_GROUP_FATAL_FAILURE)
+ return -1;
+
wpa_printf(MSG_DEBUG, "WPA: Moving STA " MACSTR " to use group state "
"machine for VLAN ID %d", MAC2STR(sm->addr), vlan_id);
+ wpa_group_get(sm->wpa_auth, group);
+ wpa_group_put(sm->wpa_auth, sm->group);
sm->group = group;
+
return 0;
}
wpa_send_eapol_timeout, wpa_auth, sm);
}
}
+
+
+int wpa_auth_uses_sae(struct wpa_state_machine *sm)
+{
+ if (sm == NULL)
+ return 0;
+ return wpa_key_mgmt_sae(sm->wpa_key_mgmt);
+}
+
+
+int wpa_auth_uses_ft_sae(struct wpa_state_machine *sm)
+{
+ if (sm == NULL)
+ return 0;
+ return sm->wpa_key_mgmt == WPA_KEY_MGMT_FT_SAE;
+}
+
+
+#ifdef CONFIG_P2P
+int wpa_auth_get_ip_addr(struct wpa_state_machine *sm, u8 *addr)
+{
+ if (sm == NULL || WPA_GET_BE32(sm->ip_addr) == 0)
+ return -1;
+ os_memcpy(addr, sm->ip_addr, 4);
+ return 0;
+}
+#endif /* CONFIG_P2P */
+
+
+int wpa_auth_radius_das_disconnect_pmksa(struct wpa_authenticator *wpa_auth,
+ struct radius_das_attrs *attr)
+{
+ return pmksa_cache_auth_radius_das_disconnect(wpa_auth->pmksa, attr);
+}
+
+
+void wpa_auth_reconfig_group_keys(struct wpa_authenticator *wpa_auth)
+{
+ struct wpa_group *group;
+
+ if (!wpa_auth)
+ return;
+ for (group = wpa_auth->group; group; group = group->next)
+ wpa_group_config_group_keys(wpa_auth, group);
+}
projects / mech_eap.git / blobdiff