/*
* wpa_supplicant - SME
- * Copyright (c) 2009-2010, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2009-2012, Jouni Malinen <j@w1.fi>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Alternatively, this software may be distributed under the terms of BSD
- * license.
- *
- * See README and COPYING for more details.
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
*/
#include "includes.h"
#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"
#include "bss.h"
#include "scan.h"
#include "sme.h"
+#include "hs20_supplicant.h"
#define SME_AUTH_TIMEOUT 5
#define SME_ASSOC_TIMEOUT 5
static void sme_auth_timer(void *eloop_ctx, void *timeout_ctx);
static void sme_assoc_timer(void *eloop_ctx, void *timeout_ctx);
+static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx);
#ifdef CONFIG_IEEE80211W
static void sme_stop_sa_query(struct wpa_supplicant *wpa_s);
#endif /* CONFIG_IEEE80211W */
-void sme_authenticate(struct wpa_supplicant *wpa_s,
- struct wpa_bss *bss, struct wpa_ssid *ssid)
+#ifdef CONFIG_SAE
+
+static int index_within_array(const int *array, int idx)
+{
+ int i;
+ for (i = 0; i < idx; i++) {
+ if (array[i] == -1)
+ 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 };
+
+ if (!groups)
+ 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;
+ }
+
+ 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);
+ sae_write_commit(&wpa_s->sme.sae, buf, wpa_s->sme.sae_token);
+
+ return buf;
+}
+
+
+static struct wpabuf * sme_auth_build_sae_confirm(struct wpa_supplicant *wpa_s)
+{
+ struct wpabuf *buf;
+
+ 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);
+ sae_write_confirm(&wpa_s->sme.sae, buf);
+
+ return buf;
+}
+
+#endif /* CONFIG_SAE */
+
+
+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;
const u8 *md = NULL;
#endif /* CONFIG_IEEE80211R */
int i, bssid_changed;
+ struct wpabuf *resp = NULL;
+ u8 ext_capab[10];
+ int ext_capab_len;
if (bss == NULL) {
wpa_msg(wpa_s, MSG_ERROR, "SME: No scan result available for "
wpa_dbg(wpa_s, MSG_DEBUG, "Overriding auth_alg selection: "
"0x%x", params.auth_alg);
}
+#ifdef CONFIG_SAE
+ 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;
+ }
+ }
+ }
+#endif /* CONFIG_SAE */
for (i = 0; i < NUM_WEP_KEYS; i++) {
if (ssid->wep_key_len[i])
wpa_bss_get_ie(bss, WLAN_EID_RSN)) &&
wpa_key_mgmt_wpa(ssid->key_mgmt)) {
int try_opportunistic;
- try_opportunistic = ssid->proactive_key_caching &&
+ try_opportunistic = (ssid->proactive_key_caching < 0 ?
+ wpa_s->conf->okc :
+ ssid->proactive_key_caching) &&
(ssid->proto & WPA_PROTO_RSN);
if (pmksa_cache_set_current(wpa_s->wpa, NULL, bss->bssid,
wpa_s->current_ssid,
"key management and encryption suites");
return;
}
+ } else if ((ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) &&
+ wpa_key_mgmt_wpa_ieee8021x(ssid->key_mgmt)) {
+ /*
+ * Both WPA and non-WPA IEEE 802.1X enabled in configuration -
+ * use non-WPA since the scan results did not indicate that the
+ * AP is using WPA or WPA2.
+ */
+ wpa_supplicant_set_non_wpa_policy(wpa_s, ssid);
+ wpa_s->sme.assoc_req_ie_len = 0;
} else if (wpa_key_mgmt_wpa_any(ssid->key_mgmt)) {
wpa_s->sme.assoc_req_ie_len = sizeof(wpa_s->sme.assoc_req_ie);
if (wpa_supplicant_set_suites(wpa_s, NULL, ssid,
#endif /* CONFIG_IEEE80211R */
#ifdef CONFIG_IEEE80211W
- wpa_s->sme.mfp = ssid->ieee80211w;
- if (ssid->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
+ wpa_s->sme.mfp = ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
+ wpa_s->conf->pmf : ssid->ieee80211w;
+ 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;
if (rsn && wpa_parse_wpa_ie(rsn, 2 + rsn[1], &_ie) == 0 &&
}
#endif /* CONFIG_P2P */
-#ifdef CONFIG_INTERWORKING
- if (wpa_s->conf->interworking) {
+#ifdef CONFIG_HS20
+ if (wpa_s->conf->hs20) {
+ struct wpabuf *hs20;
+ hs20 = wpabuf_alloc(20);
+ if (hs20) {
+ wpas_hs20_add_indication(hs20);
+ 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 */
+
+ ext_capab_len = wpas_build_ext_capab(wpa_s, 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);
}
-#endif /* CONFIG_INTERWORKING */
+
+#ifdef CONFIG_SAE
+ if (params.auth_alg == WPA_AUTH_ALG_SAE) {
+ if (start)
+ resp = sme_auth_build_sae_commit(wpa_s, ssid,
+ bss->bssid);
+ else
+ resp = sme_auth_build_sae_confirm(wpa_s);
+ if (resp == NULL)
+ return;
+ params.sae_data = wpabuf_head(resp);
+ params.sae_data_len = wpabuf_len(resp);
+ wpa_s->sme.sae.state = start ? SAE_COMMITTED : SAE_CONFIRMED;
+ }
+#endif /* CONFIG_SAE */
wpa_supplicant_cancel_sched_scan(wpa_s);
wpa_supplicant_cancel_scan(wpa_s);
if (wpa_drv_authenticate(wpa_s, ¶ms) < 0) {
wpa_msg(wpa_s, MSG_INFO, "SME: Authentication request to the "
"driver failed");
- wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
wpas_connection_failed(wpa_s, bss->bssid);
+ wpa_supplicant_mark_disassoc(wpa_s);
+ wpabuf_free(resp);
return;
}
* Association will be started based on the authentication event from
* the driver.
*/
+
+ wpabuf_free(resp);
+}
+
+
+void sme_authenticate(struct wpa_supplicant *wpa_s,
+ struct wpa_bss *bss, struct wpa_ssid *ssid)
+{
+#ifdef CONFIG_SAE
+ wpa_s->sme.sae.state = SAE_NOTHING;
+ wpa_s->sme.sae.send_confirm = 0;
+#endif /* CONFIG_SAE */
+ sme_send_authentication(wpa_s, bss, ssid, 1);
+}
+
+
+#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)
+{
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE authentication transaction %u "
+ "status code %u", auth_transaction, status_code);
+
+ 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) {
+ wpa_dbg(wpa_s, MSG_DEBUG, "SME: SAE anti-clogging token "
+ "requested");
+ wpabuf_free(wpa_s->sme.sae_token);
+ wpa_s->sme.sae_token = wpabuf_alloc_copy(data, len);
+ 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) {
+ 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 != SAE_COMMITTED)
+ return -1;
+ if (sae_parse_commit(&wpa_s->sme.sae, data, len, NULL, NULL,
+ wpa_s->conf->sae_groups) !=
+ 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 != SAE_CONFIRMED)
+ return -1;
+ 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;
+ }
+
+ return -1;
}
+#endif /* CONFIG_SAE */
void sme_event_auth(struct wpa_supplicant *wpa_s, union wpa_event_data *data)
}
wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication response: peer=" MACSTR
- " auth_type=%d status_code=%d",
+ " auth_type=%d auth_transaction=%d status_code=%d",
MAC2STR(data->auth.peer), data->auth.auth_type,
- data->auth.status_code);
+ data->auth.auth_transaction, data->auth.status_code);
wpa_hexdump(MSG_MSGDUMP, "SME: Authentication response IEs",
data->auth.ies, data->auth.ies_len);
eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
+#ifdef CONFIG_SAE
+ if (data->auth.auth_type == WLAN_AUTH_SAE) {
+ int res;
+ res = sme_sae_auth(wpa_s, data->auth.auth_transaction,
+ data->auth.status_code, data->auth.ies,
+ data->auth.ies_len);
+ if (res < 0) {
+ wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
+
+ }
+ 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);
+ }
+#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);
wpa_s->sme.auth_alg == data->auth.auth_type ||
wpa_s->current_ssid->auth_alg == WPA_AUTH_ALG_LEAP) {
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
return;
}
{
struct wpa_driver_associate_params params;
struct ieee802_11_elems elems;
+#ifdef CONFIG_HT_OVERRIDES
+ struct ieee80211_ht_capabilities htcaps;
+ struct ieee80211_ht_capabilities htcaps_mask;
+#endif /* CONFIG_HT_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.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_cipher_to_suite_driver(wpa_s->pairwise_cipher);
+ params.group_suite = wpa_cipher_to_suite_driver(wpa_s->group_cipher);
+#ifdef CONFIG_HT_OVERRIDES
+ os_memset(&htcaps, 0, sizeof(htcaps));
+ os_memset(&htcaps_mask, 0, sizeof(htcaps_mask));
+ params.htcaps = (u8 *) &htcaps;
+ params.htcaps_mask = (u8 *) &htcaps_mask;
+ wpa_supplicant_apply_ht_overrides(wpa_s, wpa_s->current_ssid, ¶ms);
+#endif /* CONFIG_HT_OVERRIDES */
#ifdef CONFIG_IEEE80211R
if (auth_type == WLAN_AUTH_FT && wpa_s->sme.ft_ies) {
params.wpa_ie = wpa_s->sme.ft_ies;
wpa_msg(wpa_s, MSG_INFO, "SME: Association request to the "
"driver failed");
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+ wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
os_memset(wpa_s->pending_bssid, 0, ETH_ALEN);
return;
}
union wpa_event_data *data)
{
wpa_dbg(wpa_s, MSG_DEBUG, "SME: Authentication timed out");
- wpa_supplicant_set_state(wpa_s, WPA_DISCONNECTED);
wpas_connection_failed(wpa_s, wpa_s->pending_bssid);
+ wpa_supplicant_mark_disassoc(wpa_s);
}
#ifdef CONFIG_IEEE80211W
sme_stop_sa_query(wpa_s);
#endif /* CONFIG_IEEE80211W */
+#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 */
eloop_cancel_timeout(sme_assoc_timer, wpa_s, NULL);
eloop_cancel_timeout(sme_auth_timer, wpa_s, NULL);
+ eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
+}
+
+
+static void sme_send_2040_bss_coex(struct wpa_supplicant *wpa_s,
+ const u8 *chan_list, u8 num_channels,
+ u8 num_intol)
+{
+ struct ieee80211_2040_bss_coex_ie *bc_ie;
+ 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));
+
+ buf = wpabuf_alloc(2 + /* action.category + action_code */
+ sizeof(struct ieee80211_2040_bss_coex_ie) +
+ sizeof(struct ieee80211_2040_intol_chan_report) +
+ num_channels);
+ if (buf == NULL)
+ return;
+
+ wpabuf_put_u8(buf, WLAN_ACTION_PUBLIC);
+ wpabuf_put_u8(buf, WLAN_PA_20_40_BSS_COEX);
+
+ bc_ie = wpabuf_put(buf, sizeof(*bc_ie));
+ bc_ie->element_id = WLAN_EID_20_40_BSS_COEXISTENCE;
+ bc_ie->length = 1;
+ if (num_intol)
+ bc_ie->coex_param |= WLAN_20_40_BSS_COEX_20MHZ_WIDTH_REQ;
+
+ if (num_channels > 0) {
+ ic_report = wpabuf_put(buf, sizeof(*ic_report));
+ ic_report->element_id = WLAN_EID_20_40_BSS_INTOLERANT;
+ ic_report->length = num_channels + 1;
+ ic_report->op_class = 0;
+ os_memcpy(wpabuf_put(buf, num_channels), chan_list,
+ num_channels);
+ }
+
+ if (wpa_drv_send_action(wpa_s, wpa_s->assoc_freq, 0, wpa_s->bssid,
+ wpa_s->own_addr, wpa_s->bssid,
+ wpabuf_head(buf), wpabuf_len(buf), 0) < 0) {
+ wpa_msg(wpa_s, MSG_INFO,
+ "SME: Failed to send 20/40 BSS Coexistence frame");
+ }
+
+ wpabuf_free(buf);
+}
+
+
+/**
+ * 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;
+ const u8 *ie;
+ u16 ht_cap;
+ u8 chan_list[P2P_MAX_CHANNELS], channel;
+ u8 num_channels = 0, num_intol = 0, i;
+
+ if (!wpa_s->sme.sched_obss_scan)
+ return 0;
+
+ wpa_s->sme.sched_obss_scan = 0;
+ if (!wpa_s->current_bss || wpa_s->wpa_state != WPA_COMPLETED)
+ return 1;
+
+ /*
+ * Check whether AP uses regulatory triplet or channel triplet in
+ * country info. Right now the operating class of the BSS channel
+ * width trigger event is "unknown" (IEEE Std 802.11-2012 10.15.12),
+ * based on the assumption that operating class triplet is not used in
+ * beacon frame. If the First Channel Number/Operating Extension
+ * Identifier octet has a positive integer value of 201 or greater,
+ * then its operating class triplet.
+ *
+ * TODO: If Supported Operating Classes element is present in beacon
+ * frame, have to lookup operating class in Annex E and fill them in
+ * 2040 coex frame.
+ */
+ ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_COUNTRY);
+ if (ie && (ie[1] >= 6) && (ie[5] >= 201))
+ return 1;
+
+ os_memset(chan_list, 0, sizeof(chan_list));
+
+ 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)
+ continue;
+
+ ie = wpa_bss_get_ie(bss, WLAN_EID_HT_CAP);
+ ht_cap = (ie && (ie[1] == 26)) ? WPA_GET_LE16(ie + 2) : 0;
+
+ if (!ht_cap || (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)) {
+ /* Check whether the channel is already considered */
+ for (i = 0; i < num_channels; i++) {
+ if (channel == chan_list[i])
+ break;
+ }
+ if (i != num_channels)
+ continue;
+
+ if (ht_cap & HT_CAP_INFO_40MHZ_INTOLERANT)
+ num_intol++;
+
+ chan_list[num_channels++] = channel;
+ }
+ }
+
+ sme_send_2040_bss_coex(wpa_s, chan_list, num_channels, num_intol);
+ return 1;
+}
+
+
+static struct hostapd_hw_modes * get_mode(struct hostapd_hw_modes *modes,
+ u16 num_modes,
+ enum hostapd_hw_mode mode)
+{
+ 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 */
+ struct hostapd_hw_modes *mode;
+ int count, i;
+
+ mode = get_mode(wpa_s->hw.modes, wpa_s->hw.num_modes, band);
+ if (mode == NULL) {
+ /* No channels supported in this band - use empty list */
+ params->freqs = os_zalloc(sizeof(int));
+ return;
+ }
+
+ 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++) {
+ if (mode->channels[i].flag & HOSTAPD_CHAN_DISABLED)
+ continue;
+ params->freqs[count++] = mode->channels[i].freq;
+ }
+}
+
+
+static void sme_obss_scan_timeout(void *eloop_ctx, void *timeout_ctx)
+{
+ struct wpa_supplicant *wpa_s = eloop_ctx;
+ struct wpa_driver_scan_params params;
+
+ if (!wpa_s->current_bss) {
+ wpa_printf(MSG_DEBUG, "SME OBSS: Ignore scan request");
+ return;
+ }
+
+ os_memset(¶ms, 0, sizeof(params));
+ wpa_setband_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211G, ¶ms);
+ wpa_printf(MSG_DEBUG, "SME OBSS: Request an OBSS scan");
+
+ if (wpa_supplicant_trigger_scan(wpa_s, ¶ms))
+ wpa_printf(MSG_DEBUG, "SME OBSS: Failed to trigger scan");
+ else
+ wpa_s->sme.sched_obss_scan = 1;
+ os_free(params.freqs);
+
+ eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
+ sme_obss_scan_timeout, wpa_s, NULL);
+}
+
+
+void sme_sched_obss_scan(struct wpa_supplicant *wpa_s, int enable)
+{
+ const u8 *ie;
+ struct wpa_bss *bss = wpa_s->current_bss;
+ struct wpa_ssid *ssid = wpa_s->current_ssid;
+ struct hostapd_hw_modes *hw_mode = NULL;
+ int i;
+
+ eloop_cancel_timeout(sme_obss_scan_timeout, wpa_s, NULL);
+ wpa_s->sme.sched_obss_scan = 0;
+ if (!enable)
+ return;
+
+ /*
+ * Schedule OBSS scan if driver is using station SME in wpa_supplicant
+ * or it expects OBSS scan to be performed by wpa_supplicant.
+ */
+ if (!((wpa_s->drv_flags & WPA_DRIVER_FLAGS_SME) ||
+ (wpa_s->drv_flags & WPA_DRIVER_FLAGS_OBSS_SCAN)) ||
+ ssid == NULL || ssid->mode != IEEE80211_MODE_INFRA)
+ return;
+
+ if (!wpa_s->hw.modes)
+ return;
+
+ /* only HT caps in 11g mode are relevant */
+ for (i = 0; i < wpa_s->hw.num_modes; i++) {
+ hw_mode = &wpa_s->hw.modes[i];
+ if (hw_mode->mode == HOSTAPD_MODE_IEEE80211G)
+ break;
+ }
+
+ /* Driver does not support HT40 for 11g or doesn't have 11g. */
+ if (i == wpa_s->hw.num_modes || !hw_mode ||
+ !(hw_mode->ht_capab & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+ return;
+
+ if (bss == NULL || bss->freq < 2400 || bss->freq > 2500)
+ return; /* Not associated on 2.4 GHz band */
+
+ /* Check whether AP supports HT40 */
+ ie = wpa_bss_get_ie(wpa_s->current_bss, WLAN_EID_HT_CAP);
+ if (!ie || ie[1] < 2 ||
+ !(WPA_GET_LE16(ie + 2) & HT_CAP_INFO_SUPP_CHANNEL_WIDTH_SET))
+ return; /* AP does not support HT40 */
+
+ ie = wpa_bss_get_ie(wpa_s->current_bss,
+ WLAN_EID_OVERLAPPING_BSS_SCAN_PARAMS);
+ if (!ie || ie[1] < 14)
+ return; /* AP does not request OBSS scans */
+
+ wpa_s->sme.obss_scan_int = WPA_GET_LE16(ie + 6);
+ if (wpa_s->sme.obss_scan_int < 10) {
+ wpa_printf(MSG_DEBUG, "SME: Invalid OBSS Scan Interval %u "
+ "replaced with the minimum 10 sec",
+ wpa_s->sme.obss_scan_int);
+ wpa_s->sme.obss_scan_int = 10;
+ }
+ wpa_printf(MSG_DEBUG, "SME: OBSS Scan Interval %u sec",
+ wpa_s->sme.obss_scan_int);
+ eloop_register_timeout(wpa_s->sme.obss_scan_int, 0,
+ sme_obss_scan_timeout, wpa_s, NULL);
}
sme_check_sa_query_timeout(wpa_s))
return;
- nbuf = os_realloc(wpa_s->sme.sa_query_trans_id,
- (wpa_s->sme.sa_query_count + 1) *
- WLAN_SA_QUERY_TR_ID_LEN);
+ nbuf = os_realloc_array(wpa_s->sme.sa_query_trans_id,
+ wpa_s->sme.sa_query_count + 1,
+ WLAN_SA_QUERY_TR_ID_LEN);
if (nbuf == NULL)
return;
if (wpa_s->sme.sa_query_count == 0) {
if (wpa_s->wpa_state != WPA_COMPLETED)
return;
ssid = wpa_s->current_ssid;
- if (ssid == NULL || ssid->ieee80211w == 0)
+ if (ssid == NULL ||
+ (ssid->ieee80211w == MGMT_FRAME_PROTECTION_DEFAULT ?
+ wpa_s->conf->pmf : ssid->ieee80211w) == NO_MGMT_FRAME_PROTECTION)
return;
if (os_memcmp(sa, wpa_s->bssid, ETH_ALEN) != 0)
return;
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