/*
* wpa_supplicant - SME
- * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2009-2014, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#include "common/ieee802_11_common.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "common/wpa_common.h"
+#include "common/sae.h"
#include "rsn_supp/wpa.h"
#include "rsn_supp/pmksa_cache.h"
#include "config.h"
#ifdef CONFIG_SAE
-static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s)
+static int index_within_array(const int *array, int idx)
+{
+ int i;
+ for (i = 0; i < idx; i++) {
+ if (array[i] <= 0)
+ return 0;
+ }
+ return 1;
+}
+
+
+static int sme_set_sae_group(struct wpa_supplicant *wpa_s)
+{
+ int *groups = wpa_s->conf->sae_groups;
+ int default_groups[] = { 19, 20, 21, 25, 26, 0 };
+
+ if (!groups || groups[0] <= 0)
+ groups = default_groups;
+
+ /* Configuration may have changed, so validate current index */
+ if (!index_within_array(groups, wpa_s->sme.sae_group_index))
+ return -1;
+
+ for (;;) {
+ int group = groups[wpa_s->sme.sae_group_index];
+ if (group <= 0)
+ break;
+ if (sae_set_group(&wpa_s->sme.sae, group) == 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: Selected SAE group %d",
+ wpa_s->sme.sae.group);
+ return 0;
+ }
+ wpa_s->sme.sae_group_index++;
+ }
+
+ return -1;
+}
+
+
+static struct wpabuf * sme_auth_build_sae_commit(struct wpa_supplicant *wpa_s,
+ struct wpa_ssid *ssid,
+ const u8 *bssid)
{
struct wpabuf *buf;
+ size_t len;
+
+ if (ssid->passphrase == NULL) {
+ wpa_printf(MSG_DEBUG, "SAE: No password available");
+ return NULL;
+ }
- buf = wpabuf_alloc(4 + 2);
+ if (sme_set_sae_group(wpa_s) < 0) {
+ wpa_printf(MSG_DEBUG, "SAE: Failed to select group");
+ return NULL;
+ }
+
+ if (sae_prepare_commit(wpa_s->own_addr, bssid,
+ (u8 *) ssid->passphrase,
+ os_strlen(ssid->passphrase),
+ &wpa_s->sme.sae) < 0) {
+ wpa_printf(MSG_DEBUG, "SAE: Could not pick PWE");
+ return NULL;
+ }
+
+ len = wpa_s->sme.sae_token ? wpabuf_len(wpa_s->sme.sae_token) : 0;
+ buf = wpabuf_alloc(4 + SAE_COMMIT_MAX_LEN + len);
if (buf == NULL)
return NULL;
wpabuf_put_le16(buf, 1); /* Transaction seq# */
wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
- wpabuf_put_le16(buf, 19); /* Finite Cyclic Group */
- /* TODO: Anti-Clogging Token (if requested) */
- /* TODO: Scalar */
- /* TODO: Element */
+ sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token);
return buf;
}
{
struct wpabuf *buf;
- buf = wpabuf_alloc(4 + 2);
+ buf = wpabuf_alloc(4 + SAE_CONFIRM_MAX_LEN);
if (buf == NULL)
return NULL;
wpabuf_put_le16(buf, 2); /* Transaction seq# */
wpabuf_put_le16(buf, WLAN_STATUS_SUCCESS);
- wpabuf_put_le16(buf, wpa_s->sme.sae_send_confirm);
- wpa_s->sme.sae_send_confirm++;
- /* TODO: Confirm */
+ sae_write_confirm(&wpa_s->sme.sae, buf);
return buf;
}
#endif /* CONFIG_SAE */
-void sme_send_authentication(struct wpa_supplicant *wpa_s,
- struct wpa_bss *bss, struct wpa_ssid *ssid,
- int start)
+/**
+ * sme_auth_handle_rrm - Handle RRM aspects of current authentication attempt
+ * @wpa_s: Pointer to wpa_supplicant data
+ * @bss: Pointer to the bss which is the target of authentication attempt
+ */
+static void sme_auth_handle_rrm(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss)
+{
+ const u8 rrm_ie_len = 5;
+ u8 *pos;
+ const u8 *rrm_ie;
+
+ wpa_s->rrm.rrm_used = 0;
+
+ wpa_printf(MSG_DEBUG,
+ "RRM: Determining whether RRM can be used - device support: 0x%x",
+ wpa_s->drv_rrm_flags);
+
+ rrm_ie = wpa_bss_get_ie(bss, WLAN_EID_RRM_ENABLED_CAPABILITIES);
+ if (!rrm_ie || !(bss->caps & IEEE80211_CAP_RRM)) {
+ wpa_printf(MSG_DEBUG, "RRM: No RRM in network");
+ return;
+ }
+
+ if (!((wpa_s->drv_rrm_flags &
+ WPA_DRIVER_FLAGS_DS_PARAM_SET_IE_IN_PROBES) &&
+ (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_QUIET)) &&
+ !(wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_SUPPORT_RRM)) {
+ wpa_printf(MSG_DEBUG,
+ "RRM: Insufficient RRM support in driver - do not use RRM");
+ return;
+ }
+
+ if (sizeof(wpa_s->sme.assoc_req_ie) <
+ wpa_s->sme.assoc_req_ie_len + rrm_ie_len + 2) {
+ wpa_printf(MSG_INFO,
+ "RRM: Unable to use RRM, no room for RRM IE");
+ return;
+ }
+
+ wpa_printf(MSG_DEBUG, "RRM: Adding RRM IE to Association Request");
+ pos = wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len;
+ os_memset(pos, 0, 2 + rrm_ie_len);
+ *pos++ = WLAN_EID_RRM_ENABLED_CAPABILITIES;
+ *pos++ = rrm_ie_len;
+
+ /* Set supported capabilites flags */
+ if (wpa_s->drv_rrm_flags & WPA_DRIVER_FLAGS_TX_POWER_INSERTION)
+ *pos |= WLAN_RRM_CAPS_LINK_MEASUREMENT;
+
+ if (wpa_s->lci)
+ pos[1] |= WLAN_RRM_CAPS_LCI_MEASUREMENT;
+
+ wpa_s->sme.assoc_req_ie_len += rrm_ie_len + 2;
+ wpa_s->rrm.rrm_used = 1;
+}
+
+
+static void sme_send_authentication(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss, struct wpa_ssid *ssid,
+ int start)
{
struct wpa_driver_auth_params params;
struct wpa_ssid *old_ssid;
#endif /* CONFIG_IEEE80211R */
int i, bssid_changed;
struct wpabuf *resp = NULL;
+ u8 ext_capab[18];
+ int ext_capab_len;
+ int skip_auth;
+#ifdef CONFIG_MBO
+ const u8 *mbo;
+#endif /* CONFIG_MBO */
if (bss == NULL) {
wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
"the network");
+ wpas_connect_work_done(wpa_s);
return;
}
+ skip_auth = wpa_s->conf->reassoc_same_bss_optim &&
+ wpa_s->reassoc_same_bss;
wpa_s->current_bss = bss;
os_memset(¶ms, 0, sizeof(params));
"0x%x", params.auth_alg);
}
#ifdef CONFIG_SAE
+ wpa_s->sme.sae_pmksa_caching = 0;
if (wpa_key_mgmt_sae(ssid->key_mgmt)) {
const u8 *rsn;
struct wpa_ie_data ied;
rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
- if (rsn &&
- wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0) {
- if (wpa_key_mgmt_sae(ied.key_mgmt)) {
- wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
- params.auth_alg = WPA_AUTH_ALG_SAE;
- }
+ if (!rsn) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SAE enabled, but target BSS does not advertise RSN");
+ } else if (wpa_parse_wpa_ie(rsn, 2 + rsn[1], &ied) == 0 &&
+ wpa_key_mgmt_sae(ied.key_mgmt)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "Using SAE auth_alg");
+ params.auth_alg = WPA_AUTH_ALG_SAE;
+ } else {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SAE enabled, but target BSS does not advertise SAE AKM for RSN");
}
}
#endif /* CONFIG_SAE */
if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
wpa_s->current_ssid,
try_opportunistic) == 0)
- eapol_sm_notify_pmkid_attempt(wpa_s->eapol, 1);
+ eapol_sm_notify_pmkid_attempt(wpa_s->eapol);
wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
if (wpa_supplicant_set_suites(wpa_s, bss, ssid,
wpa_s->sme.assoc_req_ie,
&wpa_s->sme.assoc_req_ie_len)) {
wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
"key management and encryption suites");
+ wpas_connect_work_done(wpa_s);
return;
}
} else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
wpa_msg(wpa_s, MSG_WARNING, "SME: Failed to set WPA "
"key management and encryption suites (no "
"scan results)");
+ wpas_connect_work_done(wpa_s);
return;
}
#ifdef CONFIG_WPS
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
- wpa_s->sme.mfp = ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
- wpa_s->conf->pmf : ssid->ieee80211w;
+ wpa_s->sme.mfp = wpas_get_ssid_pmf(wpa_s, ssid);
if (wpa_s->sme.mfp != NO_MGMT_FRAME_PROTECTION) {
const u8 *rsn = wpa_bss_get_ie(bss, WLAN_EID_RSN);
struct wpa_ie_data _ie;
}
#endif /* CONFIG_P2P */
-#ifdef CONFIG_HS20
- if (wpa_s->conf->hs20) {
- struct wpabuf *hs20;
- hs20 = wpabuf_alloc(20);
- if (hs20) {
- wpas_hs20_add_indication(hs20);
+#ifdef CONFIG_FST
+ if (wpa_s->fst_ies) {
+ int fst_ies_len = wpabuf_len(wpa_s->fst_ies);
+
+ if (wpa_s->sme.assoc_req_ie_len + fst_ies_len <=
+ sizeof(wpa_s->sme.assoc_req_ie)) {
os_memcpy(wpa_s->sme.assoc_req_ie +
wpa_s->sme.assoc_req_ie_len,
- wpabuf_head(hs20), wpabuf_len(hs20));
- wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
- wpabuf_free(hs20);
+ wpabuf_head(wpa_s->fst_ies),
+ fst_ies_len);
+ wpa_s->sme.assoc_req_ie_len += fst_ies_len;
}
}
-#endif /* CONFIG_HS20 */
+#endif /* CONFIG_FST */
+
+ sme_auth_handle_rrm(wpa_s, bss);
+
+#ifdef CONFIG_MBO
+ mbo = wpa_bss_get_vendor_ie(bss, MBO_IE_VENDOR_TYPE);
+ if (mbo) {
+ int len;
+
+ len = wpas_mbo_supp_op_class_ie(
+ wpa_s, bss->freq,
+ wpa_s->sme.assoc_req_ie + wpa_s->sme.assoc_req_ie_len,
+ sizeof(wpa_s->sme.assoc_req_ie) -
+ wpa_s->sme.assoc_req_ie_len);
+ if (len > 0)
+ wpa_s->sme.assoc_req_ie_len += len;
+ }
+#endif /* CONFIG_MBO */
+
+ if (params.p2p)
+ wpa_drv_get_ext_capa(wpa_s, WPA_IF_P2P_CLIENT);
+ else
+ wpa_drv_get_ext_capa(wpa_s, WPA_IF_STATION);
-#ifdef CONFIG_INTERWORKING
- if (wpa_s->conf->interworking) {
+ ext_capab_len = wpas_build_ext_capab(wpa_s, ext_capab,
+ sizeof(ext_capab));
+ if (ext_capab_len > 0) {
u8 *pos = wpa_s->sme.assoc_req_ie;
if (wpa_s->sme.assoc_req_ie_len > 0 && pos[0] == WLAN_EID_RSN)
pos += 2 + pos[1];
- os_memmove(pos + 6, pos,
+ os_memmove(pos + ext_capab_len, pos,
wpa_s->sme.assoc_req_ie_len -
(pos - wpa_s->sme.assoc_req_ie));
- wpa_s->sme.assoc_req_ie_len += 6;
- *pos++ = WLAN_EID_EXT_CAPAB;
- *pos++ = 4;
- *pos++ = 0x00;
- *pos++ = 0x00;
- *pos++ = 0x00;
- *pos++ = 0x80; /* Bit 31 - Interworking */
+ wpa_s->sme.assoc_req_ie_len += ext_capab_len;
+ os_memcpy(pos, ext_capab, ext_capab_len);
+ }
+
+#ifdef CONFIG_HS20
+ if (is_hs20_network(wpa_s, ssid, bss)) {
+ struct wpabuf *hs20;
+
+ hs20 = wpabuf_alloc(20);
+ if (hs20) {
+ int pps_mo_id = hs20_get_pps_mo_id(wpa_s, ssid);
+ size_t len;
+
+ wpas_hs20_add_indication(hs20, pps_mo_id);
+ len = sizeof(wpa_s->sme.assoc_req_ie) -
+ wpa_s->sme.assoc_req_ie_len;
+ if (wpabuf_len(hs20) <= len) {
+ os_memcpy(wpa_s->sme.assoc_req_ie +
+ wpa_s->sme.assoc_req_ie_len,
+ wpabuf_head(hs20), wpabuf_len(hs20));
+ wpa_s->sme.assoc_req_ie_len += wpabuf_len(hs20);
+ }
+ wpabuf_free(hs20);
+ }
+ }
+#endif /* CONFIG_HS20 */
+
+ if (wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ]) {
+ struct wpabuf *buf = wpa_s->vendor_elem[VENDOR_ELEM_ASSOC_REQ];
+ size_t len;
+
+ len = sizeof(wpa_s->sme.assoc_req_ie) -
+ wpa_s->sme.assoc_req_ie_len;
+ if (wpabuf_len(buf) <= len) {
+ os_memcpy(wpa_s->sme.assoc_req_ie +
+ wpa_s->sme.assoc_req_ie_len,
+ wpabuf_head(buf), wpabuf_len(buf));
+ wpa_s->sme.assoc_req_ie_len += wpabuf_len(buf);
+ }
+ }
+
+#ifdef CONFIG_MBO
+ if (mbo) {
+ int len;
+
+ len = wpas_mbo_ie(wpa_s, wpa_s->sme.assoc_req_ie +
+ wpa_s->sme.assoc_req_ie_len,
+ sizeof(wpa_s->sme.assoc_req_ie) -
+ wpa_s->sme.assoc_req_ie_len);
+ if (len >= 0)
+ wpa_s->sme.assoc_req_ie_len += len;
}
-#endif /* CONFIG_INTERWORKING */
+#endif /* CONFIG_MBO */
#ifdef CONFIG_SAE
- if (params.auth_alg == WPA_AUTH_ALG_SAE) {
+ if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE &&
+ pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid, ssid, 0) == 0)
+ {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "PMKSA cache entry found - try to use PMKSA caching instead of new SAE authentication");
+ params.auth_alg = WPA_AUTH_ALG_OPEN;
+ wpa_s->sme.sae_pmksa_caching = 1;
+ }
+
+ if (!skip_auth && params.auth_alg == WPA_AUTH_ALG_SAE) {
if (start)
- resp = sme_auth_build_sae_commit(wpa_s);
+ resp = sme_auth_build_sae_commit(wpa_s, ssid,
+ bss->bssid);
else
resp = sme_auth_build_sae_confirm(wpa_s);
- if (resp == NULL)
+ if (resp == NULL) {
+ wpas_connection_failed(wpa_s, bss->bssid);
return;
+ }
params.sae_data = wpabuf_head(resp);
params.sae_data_len = wpabuf_len(resp);
- wpa_s->sme.sae_state = start ? SME_SAE_COMMIT : SME_SAE_CONFIRM;
+ wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
}
#endif /* CONFIG_SAE */
if (old_ssid != wpa_s->current_ssid)
wpas_notify_network_changed(wpa_s);
+#ifdef CONFIG_HS20
+ hs20_configure_frame_filters(wpa_s);
+#endif /* CONFIG_HS20 */
+
+#ifdef CONFIG_P2P
+ /*
+ * If multi-channel concurrency is not supported, check for any
+ * frequency conflict. In case of any frequency conflict, remove the
+ * least prioritized connection.
+ */
+ if (wpa_s->num_multichan_concurrent < 2) {
+ int freq, num;
+ num = get_shared_radio_freqs(wpa_s, &freq, 1);
+ if (num > 0 && freq > 0 && freq != params.freq) {
+ wpa_printf(MSG_DEBUG,
+ "Conflicting frequency found (%d != %d)",
+ freq, params.freq);
+ if (wpas_p2p_handle_frequency_conflicts(wpa_s,
+ params.freq,
+ ssid) < 0) {
+ wpas_connection_failed(wpa_s, bss->bssid);
+ wpa_supplicant_mark_disassoc(wpa_s);
+ wpabuf_free(resp);
+ wpas_connect_work_done(wpa_s);
+ return;
+ }
+ }
+ }
+#endif /* CONFIG_P2P */
+
+ if (skip_auth) {
+ wpa_msg(wpa_s, MSG_DEBUG,
+ "SME: Skip authentication step on reassoc-to-same-BSS");
+ wpabuf_free(resp);
+ sme_associate(wpa_s, ssid->mode, bss->bssid, WLAN_AUTH_OPEN);
+ return;
+ }
+
+
wpa_s->sme.auth_alg = params.auth_alg;
if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) {
wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
wpas_connection_failed(wpa_s, bss->bssid);
wpa_supplicant_mark_disassoc(wpa_s);
wpabuf_free(resp);
+ wpas_connect_work_done(wpa_s);
return;
}
}
-void sme_authenticate(struct wpa_supplicant *wpa_s,
- struct wpa_bss *bss, struct wpa_ssid *ssid)
+static void sme_auth_start_cb(struct wpa_radio_work *work, int deinit)
{
- wpa_s->sme.sae_state = SME_SAE_INIT;
- wpa_s->sme.sae_send_confirm = 0;
- sme_send_authentication(wpa_s, bss, ssid, 1);
-}
+ struct wpa_connect_work *cwork = work->ctx;
+ struct wpa_supplicant *wpa_s = work->wpa_s;
+ if (deinit) {
+ if (work->started)
+ wpa_s->connect_work = NULL;
-#ifdef CONFIG_SAE
-
-static int sme_sae_process_commit(struct wpa_supplicant *wpa_s, const u8 *data,
- size_t len)
-{
- /* Check Finite Cyclic Group */
- if (len < 2)
- return -1;
- if (WPA_GET_LE16(data) != 19) {
- wpa_printf(MSG_DEBUG, "SAE: Unsupported Finite Cyclic Group %u",
- WPA_GET_LE16(data));
- return -1;
+ wpas_connect_work_free(cwork);
+ return;
}
- /* TODO */
+ wpa_s->connect_work = work;
- return 0;
+ if (cwork->bss_removed ||
+ !wpas_valid_bss_ssid(wpa_s, cwork->bss, cwork->ssid) ||
+ wpas_network_disabled(wpa_s, cwork->ssid)) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: BSS/SSID entry for authentication not valid anymore - drop connection attempt");
+ wpas_connect_work_done(wpa_s);
+ return;
+ }
+
+ sme_send_authentication(wpa_s, cwork->bss, cwork->ssid, 1);
}
-static int sme_sae_process_confirm(struct wpa_supplicant *wpa_s, const u8 *data,
- size_t len)
+void sme_authenticate(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss, struct wpa_ssid *ssid)
{
- u16 rc;
+ struct wpa_connect_work *cwork;
- if (len < 2)
- return -1;
- rc = WPA_GET_LE16(data);
- wpa_printf(MSG_DEBUG, "SAE: peer-send-confirm %u", rc);
+ if (bss == NULL || ssid == NULL)
+ return;
+ if (wpa_s->connect_work) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reject sme_authenticate() call since connect_work exist");
+ return;
+ }
- /* TODO */
- return 0;
+ if (radio_work_pending(wpa_s, "sme-connect")) {
+ /*
+ * The previous sme-connect work might no longer be valid due to
+ * the fact that the BSS list was updated. In addition, it makes
+ * sense to adhere to the 'newer' decision.
+ */
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SME: Remove previous pending sme-connect");
+ radio_remove_works(wpa_s, "sme-connect", 0);
+ }
+
+ wpas_abort_ongoing_scan(wpa_s);
+
+ cwork = os_zalloc(sizeof(*cwork));
+ if (cwork == NULL)
+ return;
+ cwork->bss = bss;
+ cwork->ssid = ssid;
+ cwork->sme = 1;
+
+#ifdef CONFIG_SAE
+ wpa_s->sme.sae.state = SAE_NOTHING;
+ wpa_s->sme.sae.send_confirm = 0;
+ wpa_s->sme.sae_group_index = 0;
+#endif /* CONFIG_SAE */
+
+ if (radio_add_work(wpa_s, bss->freq, "sme-connect", 1,
+ sme_auth_start_cb, cwork) < 0)
+ wpas_connect_work_free(cwork);
}
+#ifdef CONFIG_SAE
+
static int sme_sae_auth(struct wpa_supplicant *wpa_s, u16 auth_transaction,
u16 status_code, const u8 *data, size_t len)
{
+ int *groups;
+
wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
"status code %u", auth_transaction, status_code);
- wpa_hexdump(MSG_DEBUG, "SME: SAE fields", data, len);
+
+ if (auth_transaction == 1 &&
+ status_code == WLAN_STATUS_ANTI_CLOGGING_TOKEN_REQ &&
+ wpa_s->sme.sae.state == SAE_COMMITTED &&
+ wpa_s->current_bss && wpa_s->current_ssid) {
+ int default_groups[] = { 19, 20, 21, 25, 26, 0 };
+ u16 group;
+
+ groups = wpa_s->conf->sae_groups;
+ if (!groups || groups[0] <= 0)
+ groups = default_groups;
+
+ if (len < sizeof(le16)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SME: Too short SAE anti-clogging token request");
+ return -1;
+ }
+ group = WPA_GET_LE16(data);
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SME: SAE anti-clogging token requested (group %u)",
+ group);
+ if (sae_group_allowed(&wpa_s->sme.sae, groups, group) !=
+ WLAN_STATUS_SUCCESS) {
+ wpa_dbg(wpa_s, MSG_ERROR,
+ "SME: SAE group %u of anti-clogging request is invalid",
+ group);
+ return -1;
+ }
+ wpabuf_free(wpa_s->sme.sae_token);
+ wpa_s->sme.sae_token = wpabuf_alloc_copy(data + sizeof(le16),
+ len - sizeof(le16));
+ sme_send_authentication(wpa_s, wpa_s->current_bss,
+ wpa_s->current_ssid, 1);
+ return 0;
+ }
+
+ if (auth_transaction == 1 &&
+ status_code == WLAN_STATUS_FINITE_CYCLIC_GROUP_NOT_SUPPORTED &&
+ wpa_s->sme.sae.state == SAE_COMMITTED &&
+ wpa_s->current_bss && wpa_s->current_ssid) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE group not supported");
+ wpa_s->sme.sae_group_index++;
+ if (sme_set_sae_group(wpa_s) < 0)
+ return -1; /* no other groups enabled */
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: Try next enabled SAE group");
+ sme_send_authentication(wpa_s, wpa_s->current_bss,
+ wpa_s->current_ssid, 1);
+ return 0;
+ }
if (status_code != WLAN_STATUS_SUCCESS)
return -1;
if (auth_transaction == 1) {
+ u16 res;
+
+ groups = wpa_s->conf->sae_groups;
+
wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE commit");
if (wpa_s->current_bss == NULL ||
wpa_s->current_ssid == NULL)
return -1;
- if (wpa_s->sme.sae_state != SME_SAE_COMMIT)
+ if (wpa_s->sme.sae.state != SAE_COMMITTED)
return -1;
- if (sme_sae_process_commit(wpa_s, data, len) < 0)
+ if (groups && groups[0] <= 0)
+ groups = NULL;
+ res = sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
+ groups);
+ if (res == SAE_SILENTLY_DISCARD) {
+ wpa_printf(MSG_DEBUG,
+ "SAE: Drop commit message due to reflection attack");
+ return 0;
+ }
+ if (res != WLAN_STATUS_SUCCESS)
return -1;
+
+ if (sae_process_commit(&wpa_s->sme.sae) < 0) {
+ wpa_printf(MSG_DEBUG, "SAE: Failed to process peer "
+ "commit");
+ return -1;
+ }
+
+ wpabuf_free(wpa_s->sme.sae_token);
+ wpa_s->sme.sae_token = NULL;
sme_send_authentication(wpa_s, wpa_s->current_bss,
wpa_s->current_ssid, 0);
return 0;
} else if (auth_transaction == 2) {
wpa_dbg(wpa_s, MSG_DEBUG, "SME SAE confirm");
- if (wpa_s->sme.sae_state != SME_SAE_CONFIRM)
+ if (wpa_s->sme.sae.state != SAE_CONFIRMED)
return -1;
- if (sme_sae_process_confirm(wpa_s, data, len) < 0)
+ if (sae_check_confirm(&wpa_s->sme.sae, data, len) < 0)
return -1;
+ wpa_s->sme.sae.state = SAE_ACCEPTED;
+ sae_clear_temp_data(&wpa_s->sme.sae);
return 1;
}
}
if (res != 1)
return;
+
+ wpa_printf(MSG_DEBUG, "SME: SAE completed - setting PMK for "
+ "4-way handshake");
+ wpa_sm_set_pmk(wpa_s->wpa, wpa_s->sme.sae.pmk, PMK_LEN,
+ wpa_s->sme.sae.pmkid, wpa_s->pending_bssid);
}
#endif /* CONFIG_SAE */
if (data->auth.status_code != WLAN_STATUS_SUCCESS) {
- wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication failed (status "
- "code %d)", data->auth.status_code);
+ char *ie_txt = NULL;
+
+ if (data->auth.ies && data->auth.ies_len) {
+ size_t buflen = 2 * data->auth.ies_len + 1;
+ ie_txt = os_malloc(buflen);
+ if (ie_txt) {
+ wpa_snprintf_hex(ie_txt, buflen, data->auth.ies,
+ data->auth.ies_len);
+ }
+ }
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_AUTH_REJECT MACSTR
+ " auth_type=%u auth_transaction=%u status_code=%u ie=%s",
+ MAC2STR(data->auth.peer), data->auth.auth_type,
+ data->auth.auth_transaction, data->auth.status_code,
+ ie_txt);
+ os_free(ie_txt);
if (data->auth.status_code !=
WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG ||
return;
}
+ wpas_connect_work_done(wpa_s);
+
switch (data->auth.auth_type) {
case WLAN_AUTH_OPEN:
wpa_s->current_ssid->auth_alg = WPA_AUTH_ALG_SHARED;
#ifdef CONFIG_IEEE80211R
if (data->auth.auth_type == WLAN_AUTH_FT) {
- union wpa_event_data edata;
- os_memset(&edata, 0, sizeof(edata));
- edata.ft_ies.ies = data->auth.ies;
- edata.ft_ies.ies_len = data->auth.ies_len;
- os_memcpy(edata.ft_ies.target_ap, data->auth.peer, ETH_ALEN);
- wpa_supplicant_event(wpa_s, EVENT_FT_RESPONSE, &edata);
+ if (wpa_ft_process_response(wpa_s->wpa, data->auth.ies,
+ data->auth.ies_len, 0,
+ data->auth.peer, NULL, 0) < 0) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "SME: FT Authentication response processing failed");
+ wpa_msg(wpa_s, MSG_INFO, WPA_EVENT_DISCONNECTED "bssid="
+ MACSTR
+ " reason=%d locally_generated=1",
+ MAC2STR(wpa_s->pending_bssid),
+ WLAN_REASON_DEAUTH_LEAVING);
+ wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+ wpa_supplicant_mark_disassoc(wpa_s);
+ return;
+ }
}
#endif /* CONFIG_IEEE80211R */
struct ieee80211_ht_capabilities htcaps;
struct ieee80211_ht_capabilities htcaps_mask;
#endif /* CONFIG_HT_OVERRIDES */
+#ifdef CONFIG_VHT_OVERRIDES
+ struct ieee80211_vht_capabilities vhtcaps;
+ struct ieee80211_vht_capabilities vhtcaps_mask;
+#endif /* CONFIG_VHT_OVERRIDES */
os_memset(¶ms, 0, sizeof(params));
params.bssid = bssid;
params.ssid = wpa_s->sme.ssid;
params.ssid_len = wpa_s->sme.ssid_len;
- params.freq = wpa_s->sme.freq;
+ params.freq.freq = wpa_s->sme.freq;
params.bg_scan_period = wpa_s->current_ssid ?
wpa_s->current_ssid->bg_scan_period : -1;
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);
+ params.pairwise_suite = wpa_s->pairwise_cipher;
+ params.group_suite = wpa_s->group_cipher;
+ params.key_mgmt_suite = wpa_s->key_mgmt;
+ params.wpa_proto = wpa_s->wpa_proto;
#ifdef CONFIG_HT_OVERRIDES
os_memset(&htcaps, 0, sizeof(htcaps));
os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
params.htcaps_mask = (u8 *) &htcaps_mask;
wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, ¶ms);
#endif /* CONFIG_HT_OVERRIDES */
+#ifdef CONFIG_VHT_OVERRIDES
+ os_memset(&vhtcaps, 0, sizeof(vhtcaps));
+ os_memset(&vhtcaps_mask, 0, sizeof(vhtcaps_mask));
+ params.vhtcaps = &vhtcaps;
+ params.vhtcaps_mask = &vhtcaps_mask;
+ wpa_supplicant_apply_vht_overrides(wpa_s, wpa_s->current_ssid, ¶ms);
+#endif /* CONFIG_VHT_OVERRIDES */
#ifdef CONFIG_IEEE80211R
if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
params.wpa_ie = wpa_s->sme.ft_ies;
#endif /* CONFIG_IEEE80211R */
params.mode = mode;
params.mgmt_frame_protection = wpa_s->sme.mfp;
+ params.rrm_used = wpa_s->rrm.rrm_used;
if (wpa_s->sme.prev_bssid_set)
params.prev_bssid = wpa_s->sme.prev_bssid;
wpa_msg(wpa_s, MSG_INFO, "Trying to associate with " MACSTR
" (SSID='%s' freq=%d MHz)", MAC2STR(params.bssid),
params.ssid ? wpa_ssid_txt(params.ssid, params.ssid_len) : "",
- params.freq);
+ params.freq.freq);
wpa_supplicant_set_state(wpa_s, WPA_ASSOCIATING);
params.wpa_proto = WPA_PROTO_WPA;
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.wpa_ie - 2,
elems.wpa_ie_len + 2);
+ } else if (elems.osen) {
+ params.wpa_proto = WPA_PROTO_OSEN;
+ wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, elems.osen - 2,
+ elems.osen_len + 2);
} else
wpa_sm_set_assoc_wpa_ie(wpa_s->wpa, NULL, 0);
if (wpa_s->current_ssid && wpa_s->current_ssid->p2p_group)
params.p2p = 1;
- if (wpa_s->parent->set_sta_uapsd)
- params.uapsd = wpa_s->parent->sta_uapsd;
+ if (wpa_s->p2pdev->set_sta_uapsd)
+ params.uapsd = wpa_s->p2pdev->sta_uapsd;
else
params.uapsd = -1;
eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
+#ifdef CONFIG_SAE
+ if (wpa_s->sme.sae_pmksa_caching && wpa_s->current_ssid &&
+ wpa_key_mgmt_sae(wpa_s->current_ssid->key_mgmt)) {
+ wpa_dbg(wpa_s, MSG_DEBUG,
+ "PMKSA caching attempt rejected - drop PMKSA cache entry and fall back to SAE authentication");
+ wpa_sm_aborted_cached(wpa_s->wpa);
+ wpa_sm_pmksa_cache_flush(wpa_s->wpa, wpa_s->current_ssid);
+ if (wpa_s->current_bss) {
+ struct wpa_bss *bss = wpa_s->current_bss;
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+
+ wpa_drv_deauthenticate(wpa_s, wpa_s->pending_bssid,
+ WLAN_REASON_DEAUTH_LEAVING);
+ wpas_connect_work_done(wpa_s);
+ wpa_supplicant_mark_disassoc(wpa_s);
+ wpa_supplicant_connect(wpa_s, bss, ssid);
+ return;
+ }
+ }
+#endif /* CONFIG_SAE */
+
/*
* For now, unconditionally terminate the previous authentication. In
* theory, this should not be needed, but mac80211 gets quite confused
void sme_event_disassoc(struct wpa_supplicant *wpa_s,
- union wpa_event_data *data)
+ struct disassoc_info *info)
{
wpa_dbg(wpa_s, MSG_DEBUG, "SME: Disassociation event received");
if (wpa_s->sme.prev_bssid_set) {
}
+void sme_clear_on_disassoc(struct wpa_supplicant *wpa_s)
+{
+ wpa_s->sme.prev_bssid_set = 0;
+#ifdef CONFIG_SAE
+ wpabuf_free(wpa_s->sme.sae_token);
+ wpa_s->sme.sae_token = NULL;
+ sae_clear_data(&wpa_s->sme.sae);
+#endif /* CONFIG_SAE */
+#ifdef CONFIG_IEEE80211R
+ if (wpa_s->sme.ft_ies)
+ sme_update_ft_ies(wpa_s, NULL, NULL, 0);
+#endif /* CONFIG_IEEE80211R */
+}
+
+
void sme_deinit(struct wpa_supplicant *wpa_s)
{
os_free(wpa_s->sme.ft_ies);
#ifdef CONFIG_IEEE80211W
sme_stop_sa_query(wpa_s);
#endif /* CONFIG_IEEE80211W */
+ sme_clear_on_disassoc(wpa_s);
eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
struct ieee80211_2040_intol_chan_report *ic_report;
struct wpabuf *buf;
- wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR,
- MAC2STR(wpa_s->bssid));
+ wpa_printf(MSG_DEBUG, "SME: Send 20/40 BSS Coexistence to " MACSTR
+ " (num_channels=%u num_intol=%u)",
+ MAC2STR(wpa_s->bssid), num_channels, num_intol);
+ wpa_hexdump(MSG_DEBUG, "SME: 20/40 BSS Intolerant Channels",
+ chan_list, num_channels);
buf = wpabuf_alloc(2 + /* action.category + action_code */
sizeof(struct ieee80211_2040_bss_coex_ie) +
}
-/**
- * enum wpas_band - Frequency band
- * @WPAS_BAND_2GHZ: 2.4 GHz ISM band
- * @WPAS_BAND_5GHZ: around 5 GHz band (4.9 - 5.7 GHz)
- */
-enum wpas_band {
- WPAS_BAND_2GHZ,
- WPAS_BAND_5GHZ,
- WPAS_BAND_INVALID
-};
-
-/**
- * freq_to_channel - Convert frequency into channel info
- * @channel: Buffer for returning channel number
- * Returns: Band (2 or 5 GHz)
- */
-static enum wpas_band freq_to_channel(int freq, u8 *channel)
-{
- enum wpas_band band = (freq <= 2484) ? WPAS_BAND_2GHZ : WPAS_BAND_5GHZ;
- u8 chan = 0;
-
- if (freq >= 2412 && freq <= 2472)
- chan = (freq - 2407) / 5;
- else if (freq == 2484)
- chan = 14;
- else if (freq >= 5180 && freq <= 5805)
- chan = (freq - 5000) / 5;
-
- *channel = chan;
- return band;
-}
-
-
int sme_proc_obss_scan(struct wpa_supplicant *wpa_s)
{
struct wpa_bss *bss;
dl_list_for_each(bss, &wpa_s->bss, struct wpa_bss, list) {
/* Skip other band bss */
- if (freq_to_channel(bss->freq, &channel) != WPAS_BAND_2GHZ)
+ enum hostapd_hw_mode mode;
+ mode = ieee80211_freq_to_chan(bss->freq, &channel);
+ if (mode != HOSTAPD_MODE_IEEE80211G &&
+ mode != HOSTAPD_MODE_IEEE80211B)
continue;
ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
+ wpa_printf(MSG_DEBUG, "SME OBSS scan BSS " MACSTR
+ " freq=%u chan=%u ht_cap=0x%x",
+ MAC2STR(bss->bssid), bss->freq, channel, ht_cap);
if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
+ if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
+ num_intol++;
+
/* Check whether the channel is already considered */
for (i = 0; i < num_channels; i++) {
if (channel == chan_list[i])
if (i != num_channels)
continue;
- if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
- num_intol++;
-
chan_list[num_channels++] = channel;
}
}
}
-static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
- u16 num_modes,
- enum hostapd_hw_mode mode)
+static void wpa_obss_scan_freqs_list(struct wpa_supplicant *wpa_s,
+ struct wpa_driver_scan_params *params)
{
- u16 i;
-
- for (i = 0; i < num_modes; i++) {
- if (modes[i].mode == mode)
- return &modes[i];
- }
-
- return NULL;
-}
-
-
-static void wpa_setband_scan_freqs_list(struct wpa_supplicant *wpa_s,
- enum hostapd_hw_mode band,
- struct wpa_driver_scan_params *params)
-{
- /* Include only supported channels for the specified band */
+ /* Include only affected channels */
struct hostapd_hw_modes *mode;
int count, i;
+ int start, end;
- mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band);
+ mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes,
+ HOSTAPD_MODE_IEEE80211G);
if (mode == NULL) {
/* No channels supported in this band - use empty list */
params->freqs = os_zalloc(sizeof(int));
return;
}
+ if (wpa_s->sme.ht_sec_chan == HT_SEC_CHAN_UNKNOWN &&
+ wpa_s->current_bss) {
+ const u8 *ie;
+
+ ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_OPERATION);
+ if (ie && ie[1] >= 2) {
+ u8 o;
+
+ o = ie[3] & HT_INFO_HT_PARAM_SECONDARY_CHNL_OFF_MASK;
+ if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_ABOVE)
+ wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_ABOVE;
+ else if (o == HT_INFO_HT_PARAM_SECONDARY_CHNL_BELOW)
+ wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_BELOW;
+ }
+ }
+
+ start = wpa_s->assoc_freq - 10;
+ end = wpa_s->assoc_freq + 10;
+ switch (wpa_s->sme.ht_sec_chan) {
+ case HT_SEC_CHAN_UNKNOWN:
+ /* HT40+ possible on channels 1..9 */
+ if (wpa_s->assoc_freq <= 2452)
+ start -= 20;
+ /* HT40- possible on channels 5-13 */
+ if (wpa_s->assoc_freq >= 2432)
+ end += 20;
+ break;
+ case HT_SEC_CHAN_ABOVE:
+ end += 20;
+ break;
+ case HT_SEC_CHAN_BELOW:
+ start -= 20;
+ break;
+ }
+ wpa_printf(MSG_DEBUG,
+ "OBSS: assoc_freq %d possible affected range %d-%d",
+ wpa_s->assoc_freq, start, end);
+
params->freqs = os_calloc(mode->num_channels + 1, sizeof(int));
if (params->freqs == NULL)
return;
for (count = 0, i = 0; i < mode->num_channels; i++) {
+ int freq;
+
if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
continue;
- params->freqs[count++] = mode->channels[i].freq;
+ freq = mode->channels[i].freq;
+ if (freq - 10 >= end || freq + 10 <= start)
+ continue; /* not affected */
+ params->freqs[count++] = freq;
}
}
}
os_memset(¶ms, 0, sizeof(params));
- wpa_setband_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211G, ¶ms);
+ wpa_obss_scan_freqs_list(wpa_s, ¶ms);
+ params.low_priority = 1;
wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
if (wpa_supplicant_trigger_scan(wpa_s, ¶ms))
eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
wpa_s->sme.sched_obss_scan = 0;
+ wpa_s->sme.ht_sec_chan = HT_SEC_CHAN_UNKNOWN;
if (!enable)
return;
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);
+ struct os_reltime now, passed;
+ os_get_reltime(&now);
+ os_reltime_sub(&now, &wpa_s->sme.sa_query_start, &passed);
tu = (passed.sec * 1000000 + passed.usec) / 1024;
if (sa_query_max_timeout < tu) {
wpa_dbg(wpa_s, MSG_DEBUG, "SME: SA Query timed out");
return;
if (wpa_s->sme.sa_query_count == 0) {
/* Starting a new SA Query procedure */
- os_get_time(&wpa_s->sme.sa_query_start);
+ os_get_reltime(&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);
+ if (os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) {
+ wpa_printf(MSG_DEBUG, "Could not generate SA Query ID");
+ return;
+ }
timeout = sa_query_retry_timeout;
sec = ((timeout / 1000) * 1024) / 1000;
const u8 *da, u16 reason_code)
{
struct wpa_ssid *ssid;
+ struct os_reltime now;
- 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 == MGMT_FRAME_PROTECTION_DEFAULT ?
- wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION)
+ if (wpas_get_ssid_pmf(wpa_s, ssid) == NO_MGMT_FRAME_PROTECTION)
return;
if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
return;
if (wpa_s->sme.sa_query_count > 0)
return;
+ os_get_reltime(&now);
+ if (wpa_s->sme.last_unprot_disconnect.sec &&
+ !os_reltime_expired(&now, &wpa_s->sme.last_unprot_disconnect, 10))
+ return; /* limit SA Query procedure frequency */
+ wpa_s->sme.last_unprot_disconnect = now;
+
wpa_dbg(wpa_s, MSG_DEBUG, "SME: Unprotected disconnect dropped - "
"possible AP/STA state mismatch - trigger SA Query");
sme_start_sa_query(wpa_s);
projects / mech_eap.git / blobdiff