--- /dev/null
+/*
+ * hostapd / IEEE 802.1X-2004 Authenticator
+ * Copyright (c) 2002-2009, 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.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "crypto/md5.h"
+#include "crypto/crypto.h"
+#include "common/ieee802_11_defs.h"
+#include "common/wpa_ctrl.h"
+#include "radius/radius.h"
+#include "radius/radius_client.h"
+#include "eap_server/eap.h"
+#include "eap_common/eap_wsc_common.h"
+#include "eapol_auth/eapol_auth_sm.h"
+#include "eapol_auth/eapol_auth_sm_i.h"
+#include "hostapd.h"
+#include "accounting.h"
+#include "sta_info.h"
+#include "wpa_auth.h"
+#include "preauth_auth.h"
+#include "pmksa_cache_auth.h"
+#include "ap_config.h"
+#include "ieee802_1x.h"
+
+
+static void ieee802_1x_finished(struct hostapd_data *hapd,
+ struct sta_info *sta, int success);
+
+
+static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
+ u8 type, const u8 *data, size_t datalen)
+{
+ u8 *buf;
+ struct ieee802_1x_hdr *xhdr;
+ size_t len;
+ int encrypt = 0;
+
+ len = sizeof(*xhdr) + datalen;
+ buf = os_zalloc(len);
+ if (buf == NULL) {
+ wpa_printf(MSG_ERROR, "malloc() failed for "
+ "ieee802_1x_send(len=%lu)",
+ (unsigned long) len);
+ return;
+ }
+
+ xhdr = (struct ieee802_1x_hdr *) buf;
+ xhdr->version = hapd->conf->eapol_version;
+ xhdr->type = type;
+ xhdr->length = host_to_be16(datalen);
+
+ if (datalen > 0 && data != NULL)
+ os_memcpy(xhdr + 1, data, datalen);
+
+ if (wpa_auth_pairwise_set(sta->wpa_sm))
+ encrypt = 1;
+ if (sta->flags & WLAN_STA_PREAUTH) {
+ rsn_preauth_send(hapd, sta, buf, len);
+ } else {
+ hapd->drv.send_eapol(hapd, sta->addr, buf, len, encrypt);
+ }
+
+ os_free(buf);
+}
+
+
+void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
+ struct sta_info *sta, int authorized)
+{
+ int res;
+
+ if (sta->flags & WLAN_STA_PREAUTH)
+ return;
+
+ if (authorized) {
+ if (!(sta->flags & WLAN_STA_AUTHORIZED))
+ wpa_msg(hapd->msg_ctx, MSG_INFO,
+ AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
+ sta->flags |= WLAN_STA_AUTHORIZED;
+ res = hapd->drv.set_authorized(hapd, sta, 1);
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "authorizing port");
+ } else {
+ if ((sta->flags & (WLAN_STA_AUTHORIZED | WLAN_STA_ASSOC)) ==
+ (WLAN_STA_AUTHORIZED | WLAN_STA_ASSOC))
+ wpa_msg(hapd->msg_ctx, MSG_INFO,
+ AP_STA_DISCONNECTED MACSTR,
+ MAC2STR(sta->addr));
+ sta->flags &= ~WLAN_STA_AUTHORIZED;
+ res = hapd->drv.set_authorized(hapd, sta, 0);
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
+ }
+
+ if (res && errno != ENOENT) {
+ printf("Could not set station " MACSTR " flags for kernel "
+ "driver (errno=%d).\n", MAC2STR(sta->addr), errno);
+ }
+
+ if (authorized)
+ accounting_sta_start(hapd, sta);
+}
+
+
+static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
+ struct sta_info *sta,
+ int idx, int broadcast,
+ u8 *key_data, size_t key_len)
+{
+ u8 *buf, *ekey;
+ struct ieee802_1x_hdr *hdr;
+ struct ieee802_1x_eapol_key *key;
+ size_t len, ekey_len;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL)
+ return;
+
+ len = sizeof(*key) + key_len;
+ buf = os_zalloc(sizeof(*hdr) + len);
+ if (buf == NULL)
+ return;
+
+ hdr = (struct ieee802_1x_hdr *) buf;
+ key = (struct ieee802_1x_eapol_key *) (hdr + 1);
+ key->type = EAPOL_KEY_TYPE_RC4;
+ key->key_length = htons(key_len);
+ wpa_get_ntp_timestamp(key->replay_counter);
+
+ if (os_get_random(key->key_iv, sizeof(key->key_iv))) {
+ wpa_printf(MSG_ERROR, "Could not get random numbers");
+ os_free(buf);
+ return;
+ }
+
+ key->key_index = idx | (broadcast ? 0 : BIT(7));
+ if (hapd->conf->eapol_key_index_workaround) {
+ /* According to some information, WinXP Supplicant seems to
+ * interpret bit7 as an indication whether the key is to be
+ * activated, so make it possible to enable workaround that
+ * sets this bit for all keys. */
+ key->key_index |= BIT(7);
+ }
+
+ /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
+ * MSK[32..63] is used to sign the message. */
+ if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
+ wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
+ "and signing EAPOL-Key");
+ os_free(buf);
+ return;
+ }
+ os_memcpy((u8 *) (key + 1), key_data, key_len);
+ ekey_len = sizeof(key->key_iv) + 32;
+ ekey = os_malloc(ekey_len);
+ if (ekey == NULL) {
+ wpa_printf(MSG_ERROR, "Could not encrypt key");
+ os_free(buf);
+ return;
+ }
+ os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
+ os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
+ rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
+ os_free(ekey);
+
+ /* This header is needed here for HMAC-MD5, but it will be regenerated
+ * in ieee802_1x_send() */
+ hdr->version = hapd->conf->eapol_version;
+ hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
+ hdr->length = host_to_be16(len);
+ hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
+ key->key_signature);
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
+ " (%s index=%d)", MAC2STR(sm->addr),
+ broadcast ? "broadcast" : "unicast", idx);
+ ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
+ if (sta->eapol_sm)
+ sta->eapol_sm->dot1xAuthEapolFramesTx++;
+ os_free(buf);
+}
+
+
+#ifndef CONFIG_NO_VLAN
+static struct hostapd_wep_keys *
+ieee802_1x_group_alloc(struct hostapd_data *hapd, const char *ifname)
+{
+ struct hostapd_wep_keys *key;
+
+ key = os_zalloc(sizeof(*key));
+ if (key == NULL)
+ return NULL;
+
+ key->default_len = hapd->conf->default_wep_key_len;
+
+ if (key->idx >= hapd->conf->broadcast_key_idx_max ||
+ key->idx < hapd->conf->broadcast_key_idx_min)
+ key->idx = hapd->conf->broadcast_key_idx_min;
+ else
+ key->idx++;
+
+ if (!key->key[key->idx])
+ key->key[key->idx] = os_malloc(key->default_len);
+ if (key->key[key->idx] == NULL ||
+ os_get_random(key->key[key->idx], key->default_len)) {
+ printf("Could not generate random WEP key (dynamic VLAN).\n");
+ os_free(key->key[key->idx]);
+ key->key[key->idx] = NULL;
+ os_free(key);
+ return NULL;
+ }
+ key->len[key->idx] = key->default_len;
+
+ wpa_printf(MSG_DEBUG, "%s: Default WEP idx %d for dynamic VLAN\n",
+ ifname, key->idx);
+ wpa_hexdump_key(MSG_DEBUG, "Default WEP key (dynamic VLAN)",
+ key->key[key->idx], key->len[key->idx]);
+
+ if (hapd->drv.set_key(ifname, hapd, WPA_ALG_WEP, NULL, key->idx, 1,
+ NULL, 0, key->key[key->idx], key->len[key->idx]))
+ printf("Could not set dynamic VLAN WEP encryption key.\n");
+
+ hapd->drv.set_drv_ieee8021x(hapd, ifname, 1);
+
+ return key;
+}
+
+
+static struct hostapd_wep_keys *
+ieee802_1x_get_group(struct hostapd_data *hapd, struct hostapd_ssid *ssid,
+ size_t vlan_id)
+{
+ const char *ifname;
+
+ if (vlan_id == 0)
+ return &ssid->wep;
+
+ if (vlan_id <= ssid->max_dyn_vlan_keys && ssid->dyn_vlan_keys &&
+ ssid->dyn_vlan_keys[vlan_id])
+ return ssid->dyn_vlan_keys[vlan_id];
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Creating new group "
+ "state machine for VLAN ID %lu",
+ (unsigned long) vlan_id);
+
+ ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
+ if (ifname == NULL) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Unknown VLAN ID %lu - "
+ "cannot create group key state machine",
+ (unsigned long) vlan_id);
+ return NULL;
+ }
+
+ if (ssid->dyn_vlan_keys == NULL) {
+ int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]);
+ ssid->dyn_vlan_keys = os_zalloc(size);
+ if (ssid->dyn_vlan_keys == NULL)
+ return NULL;
+ ssid->max_dyn_vlan_keys = vlan_id;
+ }
+
+ if (ssid->max_dyn_vlan_keys < vlan_id) {
+ struct hostapd_wep_keys **na;
+ int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]);
+ na = os_realloc(ssid->dyn_vlan_keys, size);
+ if (na == NULL)
+ return NULL;
+ ssid->dyn_vlan_keys = na;
+ os_memset(&ssid->dyn_vlan_keys[ssid->max_dyn_vlan_keys + 1], 0,
+ (vlan_id - ssid->max_dyn_vlan_keys) *
+ sizeof(ssid->dyn_vlan_keys[0]));
+ ssid->max_dyn_vlan_keys = vlan_id;
+ }
+
+ ssid->dyn_vlan_keys[vlan_id] = ieee802_1x_group_alloc(hapd, ifname);
+
+ return ssid->dyn_vlan_keys[vlan_id];
+}
+#endif /* CONFIG_NO_VLAN */
+
+
+void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
+{
+ struct eapol_authenticator *eapol = hapd->eapol_auth;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+#ifndef CONFIG_NO_VLAN
+ struct hostapd_wep_keys *key = NULL;
+ int vlan_id;
+#endif /* CONFIG_NO_VLAN */
+
+ if (sm == NULL || !sm->eap_if->eapKeyData)
+ return;
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
+ MAC2STR(sta->addr));
+
+#ifndef CONFIG_NO_VLAN
+ vlan_id = sta->vlan_id;
+ if (vlan_id < 0 || vlan_id > MAX_VLAN_ID)
+ vlan_id = 0;
+
+ if (vlan_id) {
+ key = ieee802_1x_get_group(hapd, sta->ssid, vlan_id);
+ if (key && key->key[key->idx])
+ ieee802_1x_tx_key_one(hapd, sta, key->idx, 1,
+ key->key[key->idx],
+ key->len[key->idx]);
+ } else
+#endif /* CONFIG_NO_VLAN */
+ if (eapol->default_wep_key) {
+ ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
+ eapol->default_wep_key,
+ hapd->conf->default_wep_key_len);
+ }
+
+ if (hapd->conf->individual_wep_key_len > 0) {
+ u8 *ikey;
+ ikey = os_malloc(hapd->conf->individual_wep_key_len);
+ if (ikey == NULL ||
+ os_get_random(ikey, hapd->conf->individual_wep_key_len)) {
+ wpa_printf(MSG_ERROR, "Could not generate random "
+ "individual WEP key.");
+ os_free(ikey);
+ return;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
+ ikey, hapd->conf->individual_wep_key_len);
+
+ ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
+ hapd->conf->individual_wep_key_len);
+
+ /* TODO: set encryption in TX callback, i.e., only after STA
+ * has ACKed EAPOL-Key frame */
+ if (hapd->drv.set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
+ sta->addr, 0, 1, NULL, 0, ikey,
+ hapd->conf->individual_wep_key_len)) {
+ wpa_printf(MSG_ERROR, "Could not set individual WEP "
+ "encryption.");
+ }
+
+ os_free(ikey);
+ }
+}
+
+
+const char *radius_mode_txt(struct hostapd_data *hapd)
+{
+ switch (hapd->iface->conf->hw_mode) {
+ case HOSTAPD_MODE_IEEE80211A:
+ return "802.11a";
+ case HOSTAPD_MODE_IEEE80211G:
+ return "802.11g";
+ case HOSTAPD_MODE_IEEE80211B:
+ default:
+ return "802.11b";
+ }
+}
+
+
+int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
+{
+ int i;
+ u8 rate = 0;
+
+ for (i = 0; i < sta->supported_rates_len; i++)
+ if ((sta->supported_rates[i] & 0x7f) > rate)
+ rate = sta->supported_rates[i] & 0x7f;
+
+ return rate;
+}
+
+
+#ifndef CONFIG_NO_RADIUS
+static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
+ struct eapol_state_machine *sm,
+ const u8 *eap, size_t len)
+{
+ const u8 *identity;
+ size_t identity_len;
+
+ if (len <= sizeof(struct eap_hdr) ||
+ eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY)
+ return;
+
+ identity = eap_get_identity(sm->eap, &identity_len);
+ if (identity == NULL)
+ return;
+
+ /* Save station identity for future RADIUS packets */
+ os_free(sm->identity);
+ sm->identity = os_malloc(identity_len + 1);
+ if (sm->identity == NULL) {
+ sm->identity_len = 0;
+ return;
+ }
+
+ os_memcpy(sm->identity, identity, identity_len);
+ sm->identity_len = identity_len;
+ sm->identity[identity_len] = '\0';
+ hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
+ sm->dot1xAuthEapolRespIdFramesRx++;
+}
+
+
+static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
+ struct sta_info *sta,
+ const u8 *eap, size_t len)
+{
+ struct radius_msg *msg;
+ char buf[128];
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL)
+ return;
+
+ ieee802_1x_learn_identity(hapd, sm, eap, len);
+
+ wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
+ "packet");
+
+ sm->radius_identifier = radius_client_get_id(hapd->radius);
+ msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
+ sm->radius_identifier);
+ if (msg == NULL) {
+ printf("Could not create net RADIUS packet\n");
+ return;
+ }
+
+ radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
+
+ if (sm->identity &&
+ !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
+ sm->identity, sm->identity_len)) {
+ printf("Could not add User-Name\n");
+ goto fail;
+ }
+
+ if (hapd->conf->own_ip_addr.af == AF_INET &&
+ !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
+ (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
+ printf("Could not add NAS-IP-Address\n");
+ goto fail;
+ }
+
+#ifdef CONFIG_IPV6
+ if (hapd->conf->own_ip_addr.af == AF_INET6 &&
+ !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
+ (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
+ printf("Could not add NAS-IPv6-Address\n");
+ goto fail;
+ }
+#endif /* CONFIG_IPV6 */
+
+ if (hapd->conf->nas_identifier &&
+ !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
+ (u8 *) hapd->conf->nas_identifier,
+ os_strlen(hapd->conf->nas_identifier))) {
+ printf("Could not add NAS-Identifier\n");
+ goto fail;
+ }
+
+ if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
+ printf("Could not add NAS-Port\n");
+ goto fail;
+ }
+
+ os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
+ MAC2STR(hapd->own_addr), hapd->conf->ssid.ssid);
+ buf[sizeof(buf) - 1] = '\0';
+ if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
+ (u8 *) buf, os_strlen(buf))) {
+ printf("Could not add Called-Station-Id\n");
+ goto fail;
+ }
+
+ os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
+ MAC2STR(sta->addr));
+ buf[sizeof(buf) - 1] = '\0';
+ if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
+ (u8 *) buf, os_strlen(buf))) {
+ printf("Could not add Calling-Station-Id\n");
+ goto fail;
+ }
+
+ /* TODO: should probably check MTU from driver config; 2304 is max for
+ * IEEE 802.11, but use 1400 to avoid problems with too large packets
+ */
+ if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
+ printf("Could not add Framed-MTU\n");
+ goto fail;
+ }
+
+ if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
+ RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
+ printf("Could not add NAS-Port-Type\n");
+ goto fail;
+ }
+
+ if (sta->flags & WLAN_STA_PREAUTH) {
+ os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
+ sizeof(buf));
+ } else {
+ os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
+ radius_sta_rate(hapd, sta) / 2,
+ (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
+ radius_mode_txt(hapd));
+ buf[sizeof(buf) - 1] = '\0';
+ }
+ if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
+ (u8 *) buf, os_strlen(buf))) {
+ printf("Could not add Connect-Info\n");
+ goto fail;
+ }
+
+ if (eap && !radius_msg_add_eap(msg, eap, len)) {
+ printf("Could not add EAP-Message\n");
+ goto fail;
+ }
+
+ /* State attribute must be copied if and only if this packet is
+ * Access-Request reply to the previous Access-Challenge */
+ if (sm->last_recv_radius &&
+ radius_msg_get_hdr(sm->last_recv_radius)->code ==
+ RADIUS_CODE_ACCESS_CHALLENGE) {
+ int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
+ RADIUS_ATTR_STATE);
+ if (res < 0) {
+ printf("Could not copy State attribute from previous "
+ "Access-Challenge\n");
+ goto fail;
+ }
+ if (res > 0) {
+ wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
+ }
+ }
+
+ radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr);
+ return;
+
+ fail:
+ radius_msg_free(msg);
+}
+#endif /* CONFIG_NO_RADIUS */
+
+
+static void handle_eap_response(struct hostapd_data *hapd,
+ struct sta_info *sta, struct eap_hdr *eap,
+ size_t len)
+{
+ u8 type, *data;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+ if (sm == NULL)
+ return;
+
+ data = (u8 *) (eap + 1);
+
+ if (len < sizeof(*eap) + 1) {
+ printf("handle_eap_response: too short response data\n");
+ return;
+ }
+
+ sm->eap_type_supp = type = data[0];
+
+ hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
+ "id=%d len=%d) from STA: EAP Response-%s (%d)",
+ eap->code, eap->identifier, be_to_host16(eap->length),
+ eap_server_get_name(0, type), type);
+
+ sm->dot1xAuthEapolRespFramesRx++;
+
+ wpabuf_free(sm->eap_if->eapRespData);
+ sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
+ sm->eapolEap = TRUE;
+}
+
+
+/* Process incoming EAP packet from Supplicant */
+static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
+ u8 *buf, size_t len)
+{
+ struct eap_hdr *eap;
+ u16 eap_len;
+
+ if (len < sizeof(*eap)) {
+ printf(" too short EAP packet\n");
+ return;
+ }
+
+ eap = (struct eap_hdr *) buf;
+
+ eap_len = be_to_host16(eap->length);
+ wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
+ eap->code, eap->identifier, eap_len);
+ if (eap_len < sizeof(*eap)) {
+ wpa_printf(MSG_DEBUG, " Invalid EAP length");
+ return;
+ } else if (eap_len > len) {
+ wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
+ "packet");
+ return;
+ } else if (eap_len < len) {
+ wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
+ "packet", (unsigned long) len - eap_len);
+ }
+
+ switch (eap->code) {
+ case EAP_CODE_REQUEST:
+ wpa_printf(MSG_DEBUG, " (request)");
+ return;
+ case EAP_CODE_RESPONSE:
+ wpa_printf(MSG_DEBUG, " (response)");
+ handle_eap_response(hapd, sta, eap, eap_len);
+ break;
+ case EAP_CODE_SUCCESS:
+ wpa_printf(MSG_DEBUG, " (success)");
+ return;
+ case EAP_CODE_FAILURE:
+ wpa_printf(MSG_DEBUG, " (failure)");
+ return;
+ default:
+ wpa_printf(MSG_DEBUG, " (unknown code)");
+ return;
+ }
+}
+
+
+static struct eapol_state_machine *
+ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
+{
+ int flags = 0;
+ if (sta->flags & WLAN_STA_PREAUTH)
+ flags |= EAPOL_SM_PREAUTH;
+ if (sta->wpa_sm) {
+ flags |= EAPOL_SM_USES_WPA;
+ if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
+ flags |= EAPOL_SM_FROM_PMKSA_CACHE;
+ }
+ return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
+ sta->wps_ie, sta->p2p_ie, sta);
+}
+
+
+/**
+ * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
+ * @hapd: hostapd BSS data
+ * @sa: Source address (sender of the EAPOL frame)
+ * @buf: EAPOL frame
+ * @len: Length of buf in octets
+ *
+ * This function is called for each incoming EAPOL frame from the interface
+ */
+void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
+ size_t len)
+{
+ struct sta_info *sta;
+ struct ieee802_1x_hdr *hdr;
+ struct ieee802_1x_eapol_key *key;
+ u16 datalen;
+ struct rsn_pmksa_cache_entry *pmksa;
+
+ if (!hapd->conf->ieee802_1x && !hapd->conf->wpa &&
+ !hapd->conf->wps_state)
+ return;
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
+ (unsigned long) len, MAC2STR(sa));
+ sta = ap_get_sta(hapd, sa);
+ if (!sta || !(sta->flags & WLAN_STA_ASSOC)) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
+ "associated STA");
+ return;
+ }
+
+ if (len < sizeof(*hdr)) {
+ printf(" too short IEEE 802.1X packet\n");
+ return;
+ }
+
+ hdr = (struct ieee802_1x_hdr *) buf;
+ datalen = be_to_host16(hdr->length);
+ wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
+ hdr->version, hdr->type, datalen);
+
+ if (len - sizeof(*hdr) < datalen) {
+ printf(" frame too short for this IEEE 802.1X packet\n");
+ if (sta->eapol_sm)
+ sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
+ return;
+ }
+ if (len - sizeof(*hdr) > datalen) {
+ wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
+ "IEEE 802.1X packet",
+ (unsigned long) len - sizeof(*hdr) - datalen);
+ }
+
+ if (sta->eapol_sm) {
+ sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
+ sta->eapol_sm->dot1xAuthEapolFramesRx++;
+ }
+
+ key = (struct ieee802_1x_eapol_key *) (hdr + 1);
+ if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
+ hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
+ (key->type == EAPOL_KEY_TYPE_WPA ||
+ key->type == EAPOL_KEY_TYPE_RSN)) {
+ wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
+ sizeof(*hdr) + datalen);
+ return;
+ }
+
+ if ((!hapd->conf->ieee802_1x &&
+ !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) ||
+ wpa_key_mgmt_wpa_psk(wpa_auth_sta_key_mgmt(sta->wpa_sm)))
+ return;
+
+ if (!sta->eapol_sm) {
+ sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
+ if (!sta->eapol_sm)
+ return;
+
+#ifdef CONFIG_WPS
+ if (!hapd->conf->ieee802_1x &&
+ ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
+ WLAN_STA_MAYBE_WPS)) {
+ /*
+ * Delay EAPOL frame transmission until a possible WPS
+ * STA initiates the handshake with EAPOL-Start.
+ */
+ sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
+ }
+#endif /* CONFIG_WPS */
+
+ sta->eapol_sm->eap_if->portEnabled = TRUE;
+ }
+
+ /* since we support version 1, we can ignore version field and proceed
+ * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
+ /* TODO: actually, we are not version 1 anymore.. However, Version 2
+ * does not change frame contents, so should be ok to process frames
+ * more or less identically. Some changes might be needed for
+ * verification of fields. */
+
+ switch (hdr->type) {
+ case IEEE802_1X_TYPE_EAP_PACKET:
+ handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
+ break;
+
+ case IEEE802_1X_TYPE_EAPOL_START:
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
+ "from STA");
+ sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
+ pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
+ if (pmksa) {
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
+ HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
+ "available - ignore it since "
+ "STA sent EAPOL-Start");
+ wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
+ }
+ sta->eapol_sm->eapolStart = TRUE;
+ sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
+ wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
+ break;
+
+ case IEEE802_1X_TYPE_EAPOL_LOGOFF:
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
+ "from STA");
+ sta->acct_terminate_cause =
+ RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
+ accounting_sta_stop(hapd, sta);
+ sta->eapol_sm->eapolLogoff = TRUE;
+ sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
+ break;
+
+ case IEEE802_1X_TYPE_EAPOL_KEY:
+ wpa_printf(MSG_DEBUG, " EAPOL-Key");
+ if (!(sta->flags & WLAN_STA_AUTHORIZED)) {
+ wpa_printf(MSG_DEBUG, " Dropped key data from "
+ "unauthorized Supplicant");
+ break;
+ }
+ break;
+
+ case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
+ wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
+ /* TODO: implement support for this; show data */
+ break;
+
+ default:
+ wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
+ sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
+ break;
+ }
+
+ eapol_auth_step(sta->eapol_sm);
+}
+
+
+/**
+ * ieee802_1x_new_station - Start IEEE 802.1X authentication
+ * @hapd: hostapd BSS data
+ * @sta: The station
+ *
+ * This function is called to start IEEE 802.1X authentication when a new
+ * station completes IEEE 802.11 association.
+ */
+void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
+{
+ struct rsn_pmksa_cache_entry *pmksa;
+ int reassoc = 1;
+ int force_1x = 0;
+
+#ifdef CONFIG_WPS
+ if (hapd->conf->wps_state && hapd->conf->wpa &&
+ (sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
+ /*
+ * Need to enable IEEE 802.1X/EAPOL state machines for possible
+ * WPS handshake even if IEEE 802.1X/EAPOL is not used for
+ * authentication in this BSS.
+ */
+ force_1x = 1;
+ }
+#endif /* CONFIG_WPS */
+
+ if ((!force_1x && !hapd->conf->ieee802_1x) ||
+ wpa_key_mgmt_wpa_psk(wpa_auth_sta_key_mgmt(sta->wpa_sm)))
+ return;
+
+ if (sta->eapol_sm == NULL) {
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "start authentication");
+ sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
+ if (sta->eapol_sm == NULL) {
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_INFO,
+ "failed to allocate state machine");
+ return;
+ }
+ reassoc = 0;
+ }
+
+#ifdef CONFIG_WPS
+ sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
+ if (!hapd->conf->ieee802_1x && !(sta->flags & WLAN_STA_WPS)) {
+ /*
+ * Delay EAPOL frame transmission until a possible WPS
+ * initiates the handshake with EAPOL-Start.
+ */
+ sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
+ }
+#endif /* CONFIG_WPS */
+
+ sta->eapol_sm->eap_if->portEnabled = TRUE;
+
+ pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
+ if (pmksa) {
+ int old_vlanid;
+
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG,
+ "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
+ /* Setup EAPOL state machines to already authenticated state
+ * because of existing PMKSA information in the cache. */
+ sta->eapol_sm->keyRun = TRUE;
+ sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
+ sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
+ sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
+ sta->eapol_sm->authSuccess = TRUE;
+ if (sta->eapol_sm->eap)
+ eap_sm_notify_cached(sta->eapol_sm->eap);
+ old_vlanid = sta->vlan_id;
+ pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
+ if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
+ sta->vlan_id = 0;
+ ap_sta_bind_vlan(hapd, sta, old_vlanid);
+ } else {
+ if (reassoc) {
+ /*
+ * Force EAPOL state machines to start
+ * re-authentication without having to wait for the
+ * Supplicant to send EAPOL-Start.
+ */
+ sta->eapol_sm->reAuthenticate = TRUE;
+ }
+ eapol_auth_step(sta->eapol_sm);
+ }
+}
+
+
+void ieee802_1x_free_station(struct sta_info *sta)
+{
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL)
+ return;
+
+ sta->eapol_sm = NULL;
+
+#ifndef CONFIG_NO_RADIUS
+ radius_msg_free(sm->last_recv_radius);
+ radius_free_class(&sm->radius_class);
+#endif /* CONFIG_NO_RADIUS */
+
+ os_free(sm->identity);
+ eapol_auth_free(sm);
+}
+
+
+#ifndef CONFIG_NO_RADIUS
+static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
+ struct sta_info *sta)
+{
+ u8 *eap;
+ size_t len;
+ struct eap_hdr *hdr;
+ int eap_type = -1;
+ char buf[64];
+ struct radius_msg *msg;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL || sm->last_recv_radius == NULL) {
+ if (sm)
+ sm->eap_if->aaaEapNoReq = TRUE;
+ return;
+ }
+
+ msg = sm->last_recv_radius;
+
+ eap = radius_msg_get_eap(msg, &len);
+ if (eap == NULL) {
+ /* RFC 3579, Chap. 2.6.3:
+ * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
+ * attribute */
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_WARNING, "could not extract "
+ "EAP-Message from RADIUS message");
+ sm->eap_if->aaaEapNoReq = TRUE;
+ return;
+ }
+
+ if (len < sizeof(*hdr)) {
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_WARNING, "too short EAP packet "
+ "received from authentication server");
+ os_free(eap);
+ sm->eap_if->aaaEapNoReq = TRUE;
+ return;
+ }
+
+ if (len > sizeof(*hdr))
+ eap_type = eap[sizeof(*hdr)];
+
+ hdr = (struct eap_hdr *) eap;
+ switch (hdr->code) {
+ case EAP_CODE_REQUEST:
+ if (eap_type >= 0)
+ sm->eap_type_authsrv = eap_type;
+ os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
+ eap_type >= 0 ? eap_server_get_name(0, eap_type) :
+ "??",
+ eap_type);
+ break;
+ case EAP_CODE_RESPONSE:
+ os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
+ eap_type >= 0 ? eap_server_get_name(0, eap_type) :
+ "??",
+ eap_type);
+ break;
+ case EAP_CODE_SUCCESS:
+ os_strlcpy(buf, "EAP Success", sizeof(buf));
+ break;
+ case EAP_CODE_FAILURE:
+ os_strlcpy(buf, "EAP Failure", sizeof(buf));
+ break;
+ default:
+ os_strlcpy(buf, "unknown EAP code", sizeof(buf));
+ break;
+ }
+ buf[sizeof(buf) - 1] = '\0';
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
+ "id=%d len=%d) from RADIUS server: %s",
+ hdr->code, hdr->identifier, be_to_host16(hdr->length),
+ buf);
+ sm->eap_if->aaaEapReq = TRUE;
+
+ wpabuf_free(sm->eap_if->aaaEapReqData);
+ sm->eap_if->aaaEapReqData = wpabuf_alloc_ext_data(eap, len);
+}
+
+
+static void ieee802_1x_get_keys(struct hostapd_data *hapd,
+ struct sta_info *sta, struct radius_msg *msg,
+ struct radius_msg *req,
+ const u8 *shared_secret,
+ size_t shared_secret_len)
+{
+ struct radius_ms_mppe_keys *keys;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+ if (sm == NULL)
+ return;
+
+ keys = radius_msg_get_ms_keys(msg, req, shared_secret,
+ shared_secret_len);
+
+ if (keys && keys->send && keys->recv) {
+ size_t len = keys->send_len + keys->recv_len;
+ wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
+ keys->send, keys->send_len);
+ wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
+ keys->recv, keys->recv_len);
+
+ os_free(sm->eap_if->aaaEapKeyData);
+ sm->eap_if->aaaEapKeyData = os_malloc(len);
+ if (sm->eap_if->aaaEapKeyData) {
+ os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
+ keys->recv_len);
+ os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
+ keys->send, keys->send_len);
+ sm->eap_if->aaaEapKeyDataLen = len;
+ sm->eap_if->aaaEapKeyAvailable = TRUE;
+ }
+ }
+
+ if (keys) {
+ os_free(keys->send);
+ os_free(keys->recv);
+ os_free(keys);
+ }
+}
+
+
+static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
+ struct sta_info *sta,
+ struct radius_msg *msg)
+{
+ u8 *class;
+ size_t class_len;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+ int count, i;
+ struct radius_attr_data *nclass;
+ size_t nclass_count;
+
+ if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
+ sm == NULL)
+ return;
+
+ radius_free_class(&sm->radius_class);
+ count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
+ if (count <= 0)
+ return;
+
+ nclass = os_zalloc(count * sizeof(struct radius_attr_data));
+ if (nclass == NULL)
+ return;
+
+ nclass_count = 0;
+
+ class = NULL;
+ for (i = 0; i < count; i++) {
+ do {
+ if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
+ &class, &class_len,
+ class) < 0) {
+ i = count;
+ break;
+ }
+ } while (class_len < 1);
+
+ nclass[nclass_count].data = os_malloc(class_len);
+ if (nclass[nclass_count].data == NULL)
+ break;
+
+ os_memcpy(nclass[nclass_count].data, class, class_len);
+ nclass[nclass_count].len = class_len;
+ nclass_count++;
+ }
+
+ sm->radius_class.attr = nclass;
+ sm->radius_class.count = nclass_count;
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
+ "attributes for " MACSTR,
+ (unsigned long) sm->radius_class.count,
+ MAC2STR(sta->addr));
+}
+
+
+/* Update sta->identity based on User-Name attribute in Access-Accept */
+static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
+ struct sta_info *sta,
+ struct radius_msg *msg)
+{
+ u8 *buf, *identity;
+ size_t len;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL)
+ return;
+
+ if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
+ NULL) < 0)
+ return;
+
+ identity = os_malloc(len + 1);
+ if (identity == NULL)
+ return;
+
+ os_memcpy(identity, buf, len);
+ identity[len] = '\0';
+
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
+ "User-Name from Access-Accept '%s'",
+ sm->identity ? (char *) sm->identity : "N/A",
+ (char *) identity);
+
+ os_free(sm->identity);
+ sm->identity = identity;
+ sm->identity_len = len;
+}
+
+
+struct sta_id_search {
+ u8 identifier;
+ struct eapol_state_machine *sm;
+};
+
+
+static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
+ struct sta_info *sta,
+ void *ctx)
+{
+ struct sta_id_search *id_search = ctx;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm && sm->radius_identifier >= 0 &&
+ sm->radius_identifier == id_search->identifier) {
+ id_search->sm = sm;
+ return 1;
+ }
+ return 0;
+}
+
+
+static struct eapol_state_machine *
+ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
+{
+ struct sta_id_search id_search;
+ id_search.identifier = identifier;
+ id_search.sm = NULL;
+ ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
+ return id_search.sm;
+}
+
+
+/**
+ * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
+ * @msg: RADIUS response message
+ * @req: RADIUS request message
+ * @shared_secret: RADIUS shared secret
+ * @shared_secret_len: Length of shared_secret in octets
+ * @data: Context data (struct hostapd_data *)
+ * Returns: Processing status
+ */
+static RadiusRxResult
+ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
+ const u8 *shared_secret, size_t shared_secret_len,
+ void *data)
+{
+ struct hostapd_data *hapd = data;
+ struct sta_info *sta;
+ u32 session_timeout = 0, termination_action, acct_interim_interval;
+ int session_timeout_set, old_vlanid = 0;
+ struct eapol_state_machine *sm;
+ int override_eapReq = 0;
+ struct radius_hdr *hdr = radius_msg_get_hdr(msg);
+
+ sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
+ if (sm == NULL) {
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
+ "station for this RADIUS message");
+ return RADIUS_RX_UNKNOWN;
+ }
+ sta = sm->sta;
+
+ /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
+ * present when packet contains an EAP-Message attribute */
+ if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
+ radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
+ 0) < 0 &&
+ radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
+ wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
+ "Message-Authenticator since it does not include "
+ "EAP-Message");
+ } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
+ req, 1)) {
+ printf("Incoming RADIUS packet did not have correct "
+ "Message-Authenticator - dropped\n");
+ return RADIUS_RX_INVALID_AUTHENTICATOR;
+ }
+
+ if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
+ hdr->code != RADIUS_CODE_ACCESS_REJECT &&
+ hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
+ printf("Unknown RADIUS message code\n");
+ return RADIUS_RX_UNKNOWN;
+ }
+
+ sm->radius_identifier = -1;
+ wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
+ MAC2STR(sta->addr));
+
+ radius_msg_free(sm->last_recv_radius);
+ sm->last_recv_radius = msg;
+
+ session_timeout_set =
+ !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
+ &session_timeout);
+ if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
+ &termination_action))
+ termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
+
+ if (hapd->conf->acct_interim_interval == 0 &&
+ hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
+ radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
+ &acct_interim_interval) == 0) {
+ if (acct_interim_interval < 60) {
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_INFO,
+ "ignored too small "
+ "Acct-Interim-Interval %d",
+ acct_interim_interval);
+ } else
+ sta->acct_interim_interval = acct_interim_interval;
+ }
+
+
+ switch (hdr->code) {
+ case RADIUS_CODE_ACCESS_ACCEPT:
+ if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
+ sta->vlan_id = 0;
+#ifndef CONFIG_NO_VLAN
+ else {
+ old_vlanid = sta->vlan_id;
+ sta->vlan_id = radius_msg_get_vlanid(msg);
+ }
+ if (sta->vlan_id > 0 &&
+ hostapd_get_vlan_id_ifname(hapd->conf->vlan,
+ sta->vlan_id)) {
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_RADIUS,
+ HOSTAPD_LEVEL_INFO,
+ "VLAN ID %d", sta->vlan_id);
+ } else if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_REQUIRED) {
+ sta->eapol_sm->authFail = TRUE;
+ hostapd_logger(hapd, sta->addr,
+ HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_INFO, "authentication "
+ "server did not include required VLAN "
+ "ID in Access-Accept");
+ break;
+ }
+#endif /* CONFIG_NO_VLAN */
+
+ if (ap_sta_bind_vlan(hapd, sta, old_vlanid) < 0)
+ break;
+
+ /* RFC 3580, Ch. 3.17 */
+ if (session_timeout_set && termination_action ==
+ RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
+ sm->reAuthPeriod = session_timeout;
+ } else if (session_timeout_set)
+ ap_sta_session_timeout(hapd, sta, session_timeout);
+
+ sm->eap_if->aaaSuccess = TRUE;
+ override_eapReq = 1;
+ ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
+ shared_secret_len);
+ ieee802_1x_store_radius_class(hapd, sta, msg);
+ ieee802_1x_update_sta_identity(hapd, sta, msg);
+ if (sm->eap_if->eapKeyAvailable &&
+ wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
+ session_timeout_set ?
+ (int) session_timeout : -1, sm) == 0) {
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
+ HOSTAPD_LEVEL_DEBUG,
+ "Added PMKSA cache entry");
+ }
+ break;
+ case RADIUS_CODE_ACCESS_REJECT:
+ sm->eap_if->aaaFail = TRUE;
+ override_eapReq = 1;
+ break;
+ case RADIUS_CODE_ACCESS_CHALLENGE:
+ sm->eap_if->aaaEapReq = TRUE;
+ if (session_timeout_set) {
+ /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
+ sm->eap_if->aaaMethodTimeout = session_timeout;
+ hostapd_logger(hapd, sm->addr,
+ HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG,
+ "using EAP timeout of %d seconds (from "
+ "RADIUS)",
+ sm->eap_if->aaaMethodTimeout);
+ } else {
+ /*
+ * Use dynamic retransmission behavior per EAP
+ * specification.
+ */
+ sm->eap_if->aaaMethodTimeout = 0;
+ }
+ break;
+ }
+
+ ieee802_1x_decapsulate_radius(hapd, sta);
+ if (override_eapReq)
+ sm->eap_if->aaaEapReq = FALSE;
+
+ eapol_auth_step(sm);
+
+ return RADIUS_RX_QUEUED;
+}
+#endif /* CONFIG_NO_RADIUS */
+
+
+void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
+{
+ struct eapol_state_machine *sm = sta->eapol_sm;
+ if (sm == NULL)
+ return;
+
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "aborting authentication");
+
+#ifndef CONFIG_NO_RADIUS
+ radius_msg_free(sm->last_recv_radius);
+ sm->last_recv_radius = NULL;
+#endif /* CONFIG_NO_RADIUS */
+
+ if (sm->eap_if->eapTimeout) {
+ /*
+ * Disconnect the STA since it did not reply to the last EAP
+ * request and we cannot continue EAP processing (EAP-Failure
+ * could only be sent if the EAP peer actually replied).
+ */
+ sm->eap_if->portEnabled = FALSE;
+ ap_sta_disconnect(hapd, sta, sta->addr,
+ WLAN_REASON_PREV_AUTH_NOT_VALID);
+ }
+}
+
+
+static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
+{
+ struct eapol_authenticator *eapol = hapd->eapol_auth;
+
+ if (hapd->conf->default_wep_key_len < 1)
+ return 0;
+
+ os_free(eapol->default_wep_key);
+ eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
+ if (eapol->default_wep_key == NULL ||
+ os_get_random(eapol->default_wep_key,
+ hapd->conf->default_wep_key_len)) {
+ printf("Could not generate random WEP key.\n");
+ os_free(eapol->default_wep_key);
+ eapol->default_wep_key = NULL;
+ return -1;
+ }
+
+ wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
+ eapol->default_wep_key,
+ hapd->conf->default_wep_key_len);
+
+ return 0;
+}
+
+
+static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
+ struct sta_info *sta, void *ctx)
+{
+ if (sta->eapol_sm) {
+ sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
+ eapol_auth_step(sta->eapol_sm);
+ }
+ return 0;
+}
+
+
+static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
+{
+ struct hostapd_data *hapd = eloop_ctx;
+ struct eapol_authenticator *eapol = hapd->eapol_auth;
+
+ if (eapol->default_wep_key_idx >= 3)
+ eapol->default_wep_key_idx =
+ hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
+ else
+ eapol->default_wep_key_idx++;
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
+ eapol->default_wep_key_idx);
+
+ if (ieee802_1x_rekey_broadcast(hapd)) {
+ hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_WARNING, "failed to generate a "
+ "new broadcast key");
+ os_free(eapol->default_wep_key);
+ eapol->default_wep_key = NULL;
+ return;
+ }
+
+ /* TODO: Could setup key for RX here, but change default TX keyid only
+ * after new broadcast key has been sent to all stations. */
+ if (hapd->drv.set_key(hapd->conf->iface, hapd, WPA_ALG_WEP, NULL,
+ eapol->default_wep_key_idx, 1, NULL, 0,
+ eapol->default_wep_key,
+ hapd->conf->default_wep_key_len)) {
+ hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_WARNING, "failed to configure a "
+ "new broadcast key");
+ os_free(eapol->default_wep_key);
+ eapol->default_wep_key = NULL;
+ return;
+ }
+
+ ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
+
+ if (hapd->conf->wep_rekeying_period > 0) {
+ eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
+ ieee802_1x_rekey, hapd, NULL);
+ }
+}
+
+
+static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
+ const u8 *data, size_t datalen)
+{
+#ifdef CONFIG_WPS
+ struct sta_info *sta = sta_ctx;
+
+ if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
+ WLAN_STA_MAYBE_WPS) {
+ const u8 *identity;
+ size_t identity_len;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ identity = eap_get_identity(sm->eap, &identity_len);
+ if (identity &&
+ ((identity_len == WSC_ID_ENROLLEE_LEN &&
+ os_memcmp(identity, WSC_ID_ENROLLEE,
+ WSC_ID_ENROLLEE_LEN) == 0) ||
+ (identity_len == WSC_ID_REGISTRAR_LEN &&
+ os_memcmp(identity, WSC_ID_REGISTRAR,
+ WSC_ID_REGISTRAR_LEN) == 0))) {
+ wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
+ "WLAN_STA_WPS");
+ sta->flags |= WLAN_STA_WPS;
+ }
+ }
+#endif /* CONFIG_WPS */
+
+ ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
+}
+
+
+static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
+ const u8 *data, size_t datalen)
+{
+#ifndef CONFIG_NO_RADIUS
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = sta_ctx;
+
+ ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
+#endif /* CONFIG_NO_RADIUS */
+}
+
+
+static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
+ int preauth)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = sta_ctx;
+ if (preauth)
+ rsn_preauth_finished(hapd, sta, success);
+ else
+ ieee802_1x_finished(hapd, sta, success);
+}
+
+
+static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
+ size_t identity_len, int phase2,
+ struct eap_user *user)
+{
+ struct hostapd_data *hapd = ctx;
+ const struct hostapd_eap_user *eap_user;
+ int i, count;
+
+ eap_user = hostapd_get_eap_user(hapd->conf, identity,
+ identity_len, phase2);
+ if (eap_user == NULL)
+ return -1;
+
+ os_memset(user, 0, sizeof(*user));
+ user->phase2 = phase2;
+ count = EAP_USER_MAX_METHODS;
+ if (count > EAP_MAX_METHODS)
+ count = EAP_MAX_METHODS;
+ for (i = 0; i < count; i++) {
+ user->methods[i].vendor = eap_user->methods[i].vendor;
+ user->methods[i].method = eap_user->methods[i].method;
+ }
+
+ if (eap_user->password) {
+ user->password = os_malloc(eap_user->password_len);
+ if (user->password == NULL)
+ return -1;
+ os_memcpy(user->password, eap_user->password,
+ eap_user->password_len);
+ user->password_len = eap_user->password_len;
+ }
+ user->force_version = eap_user->force_version;
+ user->ttls_auth = eap_user->ttls_auth;
+
+ return 0;
+}
+
+
+static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta;
+ sta = ap_get_sta(hapd, addr);
+ if (sta == NULL || sta->eapol_sm == NULL)
+ return 0;
+ return 1;
+}
+
+
+static void ieee802_1x_logger(void *ctx, const u8 *addr,
+ eapol_logger_level level, const char *txt)
+{
+#ifndef CONFIG_NO_HOSTAPD_LOGGER
+ struct hostapd_data *hapd = ctx;
+ int hlevel;
+
+ switch (level) {
+ case EAPOL_LOGGER_WARNING:
+ hlevel = HOSTAPD_LEVEL_WARNING;
+ break;
+ case EAPOL_LOGGER_INFO:
+ hlevel = HOSTAPD_LEVEL_INFO;
+ break;
+ case EAPOL_LOGGER_DEBUG:
+ default:
+ hlevel = HOSTAPD_LEVEL_DEBUG;
+ break;
+ }
+
+ hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
+ txt);
+#endif /* CONFIG_NO_HOSTAPD_LOGGER */
+}
+
+
+static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
+ int authorized)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = sta_ctx;
+ ieee802_1x_set_sta_authorized(hapd, sta, authorized);
+}
+
+
+static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = sta_ctx;
+ ieee802_1x_abort_auth(hapd, sta);
+}
+
+
+static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
+{
+ struct hostapd_data *hapd = ctx;
+ struct sta_info *sta = sta_ctx;
+ ieee802_1x_tx_key(hapd, sta);
+}
+
+
+static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
+ enum eapol_event type)
+{
+ /* struct hostapd_data *hapd = ctx; */
+ struct sta_info *sta = sta_ctx;
+ switch (type) {
+ case EAPOL_AUTH_SM_CHANGE:
+ wpa_auth_sm_notify(sta->wpa_sm);
+ break;
+ case EAPOL_AUTH_REAUTHENTICATE:
+ wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
+ break;
+ }
+}
+
+
+int ieee802_1x_init(struct hostapd_data *hapd)
+{
+ int i;
+ struct eapol_auth_config conf;
+ struct eapol_auth_cb cb;
+
+ os_memset(&conf, 0, sizeof(conf));
+ conf.ctx = hapd;
+ conf.eap_reauth_period = hapd->conf->eap_reauth_period;
+ conf.wpa = hapd->conf->wpa;
+ conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
+ conf.eap_server = hapd->conf->eap_server;
+ conf.ssl_ctx = hapd->ssl_ctx;
+ conf.msg_ctx = hapd->msg_ctx;
+ conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
+ conf.eap_req_id_text = hapd->conf->eap_req_id_text;
+ conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
+ conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
+ conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
+ conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
+ conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
+ conf.eap_fast_prov = hapd->conf->eap_fast_prov;
+ conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
+ conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
+ conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
+ conf.tnc = hapd->conf->tnc;
+ conf.wps = hapd->wps;
+ conf.fragment_size = hapd->conf->fragment_size;
+ conf.pwd_group = hapd->conf->pwd_group;
+
+ os_memset(&cb, 0, sizeof(cb));
+ cb.eapol_send = ieee802_1x_eapol_send;
+ cb.aaa_send = ieee802_1x_aaa_send;
+ cb.finished = _ieee802_1x_finished;
+ cb.get_eap_user = ieee802_1x_get_eap_user;
+ cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
+ cb.logger = ieee802_1x_logger;
+ cb.set_port_authorized = ieee802_1x_set_port_authorized;
+ cb.abort_auth = _ieee802_1x_abort_auth;
+ cb.tx_key = _ieee802_1x_tx_key;
+ cb.eapol_event = ieee802_1x_eapol_event;
+
+ hapd->eapol_auth = eapol_auth_init(&conf, &cb);
+ if (hapd->eapol_auth == NULL)
+ return -1;
+
+ if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
+ hapd->drv.set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
+ return -1;
+
+#ifndef CONFIG_NO_RADIUS
+ if (radius_client_register(hapd->radius, RADIUS_AUTH,
+ ieee802_1x_receive_auth, hapd))
+ return -1;
+#endif /* CONFIG_NO_RADIUS */
+
+ if (hapd->conf->default_wep_key_len) {
+ for (i = 0; i < 4; i++)
+ hapd->drv.set_key(hapd->conf->iface, hapd,
+ WPA_ALG_NONE, NULL, i, 0, NULL, 0,
+ NULL, 0);
+
+ ieee802_1x_rekey(hapd, NULL);
+
+ if (hapd->eapol_auth->default_wep_key == NULL)
+ return -1;
+ }
+
+ return 0;
+}
+
+
+void ieee802_1x_deinit(struct hostapd_data *hapd)
+{
+ eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
+
+ if (hapd->driver != NULL &&
+ (hapd->conf->ieee802_1x || hapd->conf->wpa))
+ hapd->drv.set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
+
+ eapol_auth_deinit(hapd->eapol_auth);
+ hapd->eapol_auth = NULL;
+}
+
+
+int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
+ const u8 *buf, size_t len, int ack)
+{
+ struct ieee80211_hdr *hdr;
+ struct ieee802_1x_hdr *xhdr;
+ struct ieee802_1x_eapol_key *key;
+ u8 *pos;
+ const unsigned char rfc1042_hdr[ETH_ALEN] =
+ { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
+
+ if (sta == NULL)
+ return -1;
+ if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2 + sizeof(*xhdr))
+ return 0;
+
+ hdr = (struct ieee80211_hdr *) buf;
+ pos = (u8 *) (hdr + 1);
+ if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
+ return 0;
+ pos += sizeof(rfc1042_hdr);
+ if (WPA_GET_BE16(pos) != ETH_P_PAE)
+ return 0;
+ pos += 2;
+
+ xhdr = (struct ieee802_1x_hdr *) pos;
+ pos += sizeof(*xhdr);
+
+ wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
+ "type=%d length=%d - ack=%d",
+ MAC2STR(sta->addr), xhdr->version, xhdr->type,
+ be_to_host16(xhdr->length), ack);
+
+ /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
+ * or Authenticator state machines, but EAPOL-Key packets are not
+ * retransmitted in case of failure. Try to re-sent failed EAPOL-Key
+ * packets couple of times because otherwise STA keys become
+ * unsynchronized with AP. */
+ if (xhdr->type == IEEE802_1X_TYPE_EAPOL_KEY && !ack &&
+ pos + sizeof(*key) <= buf + len) {
+ key = (struct ieee802_1x_eapol_key *) pos;
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
+ HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
+ "frame (%scast index=%d)",
+ key->key_index & BIT(7) ? "uni" : "broad",
+ key->key_index & ~BIT(7));
+ /* TODO: re-send EAPOL-Key couple of times (with short delay
+ * between them?). If all attempt fail, report error and
+ * deauthenticate STA so that it will get new keys when
+ * authenticating again (e.g., after returning in range).
+ * Separate limit/transmit state needed both for unicast and
+ * broadcast keys(?) */
+ }
+ /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
+ * to here and change the key only if the EAPOL-Key packet was Acked.
+ */
+
+ return 1;
+}
+
+
+u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
+{
+ if (sm == NULL || sm->identity == NULL)
+ return NULL;
+
+ *len = sm->identity_len;
+ return sm->identity;
+}
+
+
+u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
+ int idx)
+{
+ if (sm == NULL || sm->radius_class.attr == NULL ||
+ idx >= (int) sm->radius_class.count)
+ return NULL;
+
+ *len = sm->radius_class.attr[idx].len;
+ return sm->radius_class.attr[idx].data;
+}
+
+
+const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
+{
+ if (sm == NULL)
+ return NULL;
+
+ *len = sm->eap_if->eapKeyDataLen;
+ return sm->eap_if->eapKeyData;
+}
+
+
+void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
+ int enabled)
+{
+ if (sm == NULL)
+ return;
+ sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
+ eapol_auth_step(sm);
+}
+
+
+void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
+ int valid)
+{
+ if (sm == NULL)
+ return;
+ sm->portValid = valid ? TRUE : FALSE;
+ eapol_auth_step(sm);
+}
+
+
+void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
+{
+ if (sm == NULL)
+ return;
+ if (pre_auth)
+ sm->flags |= EAPOL_SM_PREAUTH;
+ else
+ sm->flags &= ~EAPOL_SM_PREAUTH;
+}
+
+
+static const char * bool_txt(Boolean bool)
+{
+ return bool ? "TRUE" : "FALSE";
+}
+
+
+int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
+{
+ /* TODO */
+ return 0;
+}
+
+
+int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
+ char *buf, size_t buflen)
+{
+ int len = 0, ret;
+ struct eapol_state_machine *sm = sta->eapol_sm;
+
+ if (sm == NULL)
+ return 0;
+
+ ret = os_snprintf(buf + len, buflen - len,
+ "dot1xPaePortNumber=%d\n"
+ "dot1xPaePortProtocolVersion=%d\n"
+ "dot1xPaePortCapabilities=1\n"
+ "dot1xPaePortInitialize=%d\n"
+ "dot1xPaePortReauthenticate=FALSE\n",
+ sta->aid,
+ EAPOL_VERSION,
+ sm->initialize);
+ if (ret < 0 || (size_t) ret >= buflen - len)
+ return len;
+ len += ret;
+
+ /* dot1xAuthConfigTable */
+ ret = os_snprintf(buf + len, buflen - len,
+ "dot1xAuthPaeState=%d\n"
+ "dot1xAuthBackendAuthState=%d\n"
+ "dot1xAuthAdminControlledDirections=%d\n"
+ "dot1xAuthOperControlledDirections=%d\n"
+ "dot1xAuthAuthControlledPortStatus=%d\n"
+ "dot1xAuthAuthControlledPortControl=%d\n"
+ "dot1xAuthQuietPeriod=%u\n"
+ "dot1xAuthServerTimeout=%u\n"
+ "dot1xAuthReAuthPeriod=%u\n"
+ "dot1xAuthReAuthEnabled=%s\n"
+ "dot1xAuthKeyTxEnabled=%s\n",
+ sm->auth_pae_state + 1,
+ sm->be_auth_state + 1,
+ sm->adminControlledDirections,
+ sm->operControlledDirections,
+ sm->authPortStatus,
+ sm->portControl,
+ sm->quietPeriod,
+ sm->serverTimeout,
+ sm->reAuthPeriod,
+ bool_txt(sm->reAuthEnabled),
+ bool_txt(sm->keyTxEnabled));
+ if (ret < 0 || (size_t) ret >= buflen - len)
+ return len;
+ len += ret;
+
+ /* dot1xAuthStatsTable */
+ ret = os_snprintf(buf + len, buflen - len,
+ "dot1xAuthEapolFramesRx=%u\n"
+ "dot1xAuthEapolFramesTx=%u\n"
+ "dot1xAuthEapolStartFramesRx=%u\n"
+ "dot1xAuthEapolLogoffFramesRx=%u\n"
+ "dot1xAuthEapolRespIdFramesRx=%u\n"
+ "dot1xAuthEapolRespFramesRx=%u\n"
+ "dot1xAuthEapolReqIdFramesTx=%u\n"
+ "dot1xAuthEapolReqFramesTx=%u\n"
+ "dot1xAuthInvalidEapolFramesRx=%u\n"
+ "dot1xAuthEapLengthErrorFramesRx=%u\n"
+ "dot1xAuthLastEapolFrameVersion=%u\n"
+ "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
+ sm->dot1xAuthEapolFramesRx,
+ sm->dot1xAuthEapolFramesTx,
+ sm->dot1xAuthEapolStartFramesRx,
+ sm->dot1xAuthEapolLogoffFramesRx,
+ sm->dot1xAuthEapolRespIdFramesRx,
+ sm->dot1xAuthEapolRespFramesRx,
+ sm->dot1xAuthEapolReqIdFramesTx,
+ sm->dot1xAuthEapolReqFramesTx,
+ sm->dot1xAuthInvalidEapolFramesRx,
+ sm->dot1xAuthEapLengthErrorFramesRx,
+ sm->dot1xAuthLastEapolFrameVersion,
+ MAC2STR(sm->addr));
+ if (ret < 0 || (size_t) ret >= buflen - len)
+ return len;
+ len += ret;
+
+ /* dot1xAuthDiagTable */
+ ret = os_snprintf(buf + len, buflen - len,
+ "dot1xAuthEntersConnecting=%u\n"
+ "dot1xAuthEapLogoffsWhileConnecting=%u\n"
+ "dot1xAuthEntersAuthenticating=%u\n"
+ "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
+ "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
+ "dot1xAuthAuthFailWhileAuthenticating=%u\n"
+ "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
+ "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
+ "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
+ "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
+ "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
+ "dot1xAuthBackendResponses=%u\n"
+ "dot1xAuthBackendAccessChallenges=%u\n"
+ "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
+ "dot1xAuthBackendAuthSuccesses=%u\n"
+ "dot1xAuthBackendAuthFails=%u\n",
+ sm->authEntersConnecting,
+ sm->authEapLogoffsWhileConnecting,
+ sm->authEntersAuthenticating,
+ sm->authAuthSuccessesWhileAuthenticating,
+ sm->authAuthTimeoutsWhileAuthenticating,
+ sm->authAuthFailWhileAuthenticating,
+ sm->authAuthEapStartsWhileAuthenticating,
+ sm->authAuthEapLogoffWhileAuthenticating,
+ sm->authAuthReauthsWhileAuthenticated,
+ sm->authAuthEapStartsWhileAuthenticated,
+ sm->authAuthEapLogoffWhileAuthenticated,
+ sm->backendResponses,
+ sm->backendAccessChallenges,
+ sm->backendOtherRequestsToSupplicant,
+ sm->backendAuthSuccesses,
+ sm->backendAuthFails);
+ if (ret < 0 || (size_t) ret >= buflen - len)
+ return len;
+ len += ret;
+
+ /* dot1xAuthSessionStatsTable */
+ ret = os_snprintf(buf + len, buflen - len,
+ /* TODO: dot1xAuthSessionOctetsRx */
+ /* TODO: dot1xAuthSessionOctetsTx */
+ /* TODO: dot1xAuthSessionFramesRx */
+ /* TODO: dot1xAuthSessionFramesTx */
+ "dot1xAuthSessionId=%08X-%08X\n"
+ "dot1xAuthSessionAuthenticMethod=%d\n"
+ "dot1xAuthSessionTime=%u\n"
+ "dot1xAuthSessionTerminateCause=999\n"
+ "dot1xAuthSessionUserName=%s\n",
+ sta->acct_session_id_hi, sta->acct_session_id_lo,
+ (wpa_key_mgmt_wpa_ieee8021x(
+ wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
+ 1 : 2,
+ (unsigned int) (time(NULL) -
+ sta->acct_session_start),
+ sm->identity);
+ if (ret < 0 || (size_t) ret >= buflen - len)
+ return len;
+ len += ret;
+
+ return len;
+}
+
+
+static void ieee802_1x_finished(struct hostapd_data *hapd,
+ struct sta_info *sta, int success)
+{
+ const u8 *key;
+ size_t len;
+ /* TODO: get PMKLifetime from WPA parameters */
+ static const int dot11RSNAConfigPMKLifetime = 43200;
+
+ key = ieee802_1x_get_key(sta->eapol_sm, &len);
+ if (success && key && len >= PMK_LEN &&
+ wpa_auth_pmksa_add(sta->wpa_sm, key, dot11RSNAConfigPMKLifetime,
+ sta->eapol_sm) == 0) {
+ hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
+ HOSTAPD_LEVEL_DEBUG,
+ "Added PMKSA cache entry (IEEE 802.1X)");
+ }
+
+#ifdef CONFIG_WPS
+ if (!success && (sta->flags & WLAN_STA_WPS)) {
+ /*
+ * Many devices require deauthentication after WPS provisioning
+ * and some may not be be able to do that themselves, so
+ * disconnect the client here.
+ */
+ wpa_printf(MSG_DEBUG, "WPS: Force disconnection after "
+ "EAP-Failure");
+ /* Add a small sleep to increase likelihood of previously
+ * requested EAP-Failure TX getting out before this should the
+ * driver reorder operations.
+ */
+ os_sleep(0, 10000);
+ ap_sta_disconnect(hapd, sta, sta->addr,
+ WLAN_REASON_PREV_AUTH_NOT_VALID);
+ }
+#endif /* CONFIG_WPS */
+}
projects / mech_eap.orig / blobdiff