Updated through tag hostap_2_5 from git://w1.fi/hostap.git
[mech_eap.git] / libeap / src / ap / wpa_auth_glue.c
index afa13a6..f98cc50 100644 (file)
@@ -1,26 +1,21 @@
 /*
  * hostapd / WPA authenticator glue code
- * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2012, 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 "utils/includes.h"
 
 #include "utils/common.h"
 #include "common/ieee802_11_defs.h"
+#include "common/sae.h"
+#include "common/wpa_ctrl.h"
 #include "eapol_auth/eapol_auth_sm.h"
 #include "eapol_auth/eapol_auth_sm_i.h"
 #include "eap_server/eap.h"
 #include "l2_packet/l2_packet.h"
-#include "drivers/driver.h"
 #include "hostapd.h"
 #include "ieee802_1x.h"
 #include "preauth_auth.h"
 #include "ap_drv_ops.h"
 #include "ap_config.h"
 #include "wpa_auth.h"
-
-
-#ifdef CONFIG_IEEE80211R
-static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
-                               size_t len);
-#endif /* CONFIG_IEEE80211R */
+#include "wpa_auth_glue.h"
 
 
 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
+                                 struct hostapd_config *iconf,
                                  struct wpa_auth_config *wconf)
 {
+       os_memset(wconf, 0, sizeof(*wconf));
        wconf->wpa = conf->wpa;
        wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
        wconf->wpa_pairwise = conf->wpa_pairwise;
@@ -54,14 +46,16 @@ static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
        wconf->peerkey = conf->peerkey;
        wconf->wmm_enabled = conf->wmm_enabled;
        wconf->wmm_uapsd = conf->wmm_uapsd;
+       wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
        wconf->okc = conf->okc;
 #ifdef CONFIG_IEEE80211W
        wconf->ieee80211w = conf->ieee80211w;
+       wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
 #endif /* CONFIG_IEEE80211W */
 #ifdef CONFIG_IEEE80211R
        wconf->ssid_len = conf->ssid.ssid_len;
-       if (wconf->ssid_len > SSID_LEN)
-               wconf->ssid_len = SSID_LEN;
+       if (wconf->ssid_len > SSID_MAX_LEN)
+               wconf->ssid_len = SSID_MAX_LEN;
        os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
        os_memcpy(wconf->mobility_domain, conf->mobility_domain,
                  MOBILITY_DOMAIN_ID_LEN);
@@ -77,7 +71,41 @@ static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
        wconf->r0kh_list = conf->r0kh_list;
        wconf->r1kh_list = conf->r1kh_list;
        wconf->pmk_r1_push = conf->pmk_r1_push;
+       wconf->ft_over_ds = conf->ft_over_ds;
 #endif /* CONFIG_IEEE80211R */
+#ifdef CONFIG_HS20
+       wconf->disable_gtk = conf->disable_dgaf;
+       if (conf->osen) {
+               wconf->disable_gtk = 1;
+               wconf->wpa = WPA_PROTO_OSEN;
+               wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
+               wconf->wpa_pairwise = 0;
+               wconf->wpa_group = WPA_CIPHER_CCMP;
+               wconf->rsn_pairwise = WPA_CIPHER_CCMP;
+               wconf->rsn_preauth = 0;
+               wconf->disable_pmksa_caching = 1;
+#ifdef CONFIG_IEEE80211W
+               wconf->ieee80211w = 1;
+#endif /* CONFIG_IEEE80211W */
+       }
+#endif /* CONFIG_HS20 */
+#ifdef CONFIG_TESTING_OPTIONS
+       wconf->corrupt_gtk_rekey_mic_probability =
+               iconf->corrupt_gtk_rekey_mic_probability;
+       if (conf->own_ie_override &&
+           wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) {
+               wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override);
+               os_memcpy(wconf->own_ie_override,
+                         wpabuf_head(conf->own_ie_override),
+                         wconf->own_ie_override_len);
+       }
+#endif /* CONFIG_TESTING_OPTIONS */
+#ifdef CONFIG_P2P
+       os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
+       os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
+       os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
+       os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
+#endif /* CONFIG_P2P */
 }
 
 
@@ -117,10 +145,18 @@ static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
 }
 
 
-static void hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
+static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
 {
        struct hostapd_data *hapd = ctx;
-       michael_mic_failure(hapd, addr, 0);
+       return michael_mic_failure(hapd, addr, 0);
+}
+
+
+static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr)
+{
+       struct hostapd_data *hapd = ctx;
+       wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR,
+               MAC2STR(addr));
 }
 
 
@@ -185,10 +221,38 @@ static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
 
 
 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
+                                          const u8 *p2p_dev_addr,
                                           const u8 *prev_psk)
 {
        struct hostapd_data *hapd = ctx;
-       return hostapd_get_psk(hapd->conf, addr, prev_psk);
+       struct sta_info *sta = ap_get_sta(hapd, addr);
+       const u8 *psk;
+
+#ifdef CONFIG_SAE
+       if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
+               if (!sta->sae || prev_psk)
+                       return NULL;
+               return sta->sae->pmk;
+       }
+#endif /* CONFIG_SAE */
+
+       psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
+       /*
+        * This is about to iterate over all psks, prev_psk gives the last
+        * returned psk which should not be returned again.
+        * logic list (all hostapd_get_psk; all sta->psk)
+        */
+       if (sta && sta->psk && !psk) {
+               struct hostapd_sta_wpa_psk_short *pos;
+               psk = sta->psk->psk;
+               for (pos = sta->psk; pos; pos = pos->next) {
+                       if (pos->psk == prev_psk) {
+                               psk = pos->next ? pos->next->psk : NULL;
+                               break;
+                       }
+               }
+       }
+       return psk;
 }
 
 
@@ -201,12 +265,17 @@ static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
        struct sta_info *sta;
 
        sta = ap_get_sta(hapd, addr);
-       if (sta == NULL)
+       if (sta == NULL) {
+               wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
                return -1;
+       }
 
        key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
-       if (key == NULL)
+       if (key == NULL) {
+               wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
+                          sta->eapol_sm);
                return -1;
+       }
 
        if (keylen > *len)
                keylen = *len;
@@ -230,8 +299,8 @@ static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
                        return -1;
        }
 
-       return hapd->drv.set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
-                                key, key_len);
+       return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
+                                  key, key_len);
 }
 
 
@@ -248,7 +317,30 @@ static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
                                       int encrypt)
 {
        struct hostapd_data *hapd = ctx;
-       return hapd->drv.send_eapol(hapd, addr, data, data_len, encrypt);
+       struct sta_info *sta;
+       u32 flags = 0;
+
+#ifdef CONFIG_TESTING_OPTIONS
+       if (hapd->ext_eapol_frame_io) {
+               size_t hex_len = 2 * data_len + 1;
+               char *hex = os_malloc(hex_len);
+
+               if (hex == NULL)
+                       return -1;
+               wpa_snprintf_hex(hex, hex_len, data, data_len);
+               wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
+                       MAC2STR(addr), hex);
+               os_free(hex);
+               return 0;
+       }
+#endif /* CONFIG_TESTING_OPTIONS */
+
+       sta = ap_get_sta(hapd, addr);
+       if (sta)
+               flags = hostapd_sta_flags_to_drv(sta->flags);
+
+       return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
+                                          encrypt, flags);
 }
 
 
@@ -291,12 +383,13 @@ static int hostapd_wpa_auth_for_each_auth(
 {
        struct hostapd_data *hapd = ctx;
        struct wpa_auth_iface_iter_data data;
-       if (hapd->iface->for_each_interface == NULL)
+       if (hapd->iface->interfaces == NULL ||
+           hapd->iface->interfaces->for_each_interface == NULL)
                return -1;
        data.cb = cb;
        data.cb_ctx = cb_ctx;
-       return hapd->iface->for_each_interface(hapd->iface->interfaces,
-                                              wpa_auth_iface_iter, &data);
+       return hapd->iface->interfaces->for_each_interface(
+               hapd->iface->interfaces, wpa_auth_iface_iter, &data);
 }
 
 
@@ -327,8 +420,9 @@ static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
                                   MAC2STR(idata->src_hapd->own_addr),
                                   idata->src_hapd->conf->iface,
                                   MAC2STR(hapd->own_addr), hapd->conf->iface);
-                       hostapd_rrb_receive(hapd, idata->src_hapd->own_addr,
-                                           idata->data, idata->data_len);
+                       wpa_ft_rrb_rx(hapd->wpa_auth,
+                                     idata->src_hapd->own_addr,
+                                     idata->data, idata->data_len);
                        return 1;
                }
        }
@@ -343,18 +437,36 @@ static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
                                       const u8 *data, size_t data_len)
 {
        struct hostapd_data *hapd = ctx;
+       struct l2_ethhdr *buf;
+       int ret;
+
+#ifdef CONFIG_TESTING_OPTIONS
+       if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
+               size_t hex_len = 2 * data_len + 1;
+               char *hex = os_malloc(hex_len);
+
+               if (hex == NULL)
+                       return -1;
+               wpa_snprintf_hex(hex, hex_len, data, data_len);
+               wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
+                       MAC2STR(dst), hex);
+               os_free(hex);
+               return 0;
+       }
+#endif /* CONFIG_TESTING_OPTIONS */
 
 #ifdef CONFIG_IEEE80211R
-       if (proto == ETH_P_RRB && hapd->iface->for_each_interface) {
+       if (proto == ETH_P_RRB && hapd->iface->interfaces &&
+           hapd->iface->interfaces->for_each_interface) {
                int res;
                struct wpa_auth_ft_iface_iter_data idata;
                idata.src_hapd = hapd;
                idata.dst = dst;
                idata.data = data;
                idata.data_len = data_len;
-               res = hapd->iface->for_each_interface(hapd->iface->interfaces,
-                                                     hostapd_wpa_auth_ft_iter,
-                                                     &idata);
+               res = hapd->iface->interfaces->for_each_interface(
+                       hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
+                       &idata);
                if (res == 1)
                        return data_len;
        }
@@ -366,7 +478,18 @@ static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
                                                data, data_len);
        if (hapd->l2 == NULL)
                return -1;
-       return l2_packet_send(hapd->l2, dst, proto, data, data_len);
+
+       buf = os_malloc(sizeof(*buf) + data_len);
+       if (buf == NULL)
+               return -1;
+       os_memcpy(buf->h_dest, dst, ETH_ALEN);
+       os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
+       buf->h_proto = host_to_be16(proto);
+       os_memcpy(buf + 1, data, data_len);
+       ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
+                            sizeof(*buf) + data_len);
+       os_free(buf);
+       return ret;
 }
 
 
@@ -396,7 +519,7 @@ static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
        os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
        os_memcpy(&m->u, data, data_len);
 
-       res = hapd->drv.send_mgmt_frame(hapd, (u8 *) m, mlen);
+       res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
        os_free(m);
        return res;
 }
@@ -408,6 +531,9 @@ hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
        struct hostapd_data *hapd = ctx;
        struct sta_info *sta;
 
+       if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
+               return NULL;
+
        sta = ap_sta_add(hapd, sta_addr);
        if (sta == NULL)
                return NULL;
@@ -416,7 +542,7 @@ hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
                return sta->wpa_sm;
        }
 
-       sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr);
+       sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
        if (sta->wpa_sm == NULL) {
                ap_free_sta(hapd, sta);
                return NULL;
@@ -431,7 +557,22 @@ static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
                                size_t len)
 {
        struct hostapd_data *hapd = ctx;
-       wpa_ft_rrb_rx(hapd->wpa_auth, src_addr, buf, len);
+       struct l2_ethhdr *ethhdr;
+       if (len < sizeof(*ethhdr))
+               return;
+       ethhdr = (struct l2_ethhdr *) buf;
+       wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
+                  MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
+       wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
+                     len - sizeof(*ethhdr));
+}
+
+
+static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
+                                     u8 *tspec_ie, size_t tspec_ielen)
+{
+       struct hostapd_data *hapd = ctx;
+       return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
 }
 
 #endif /* CONFIG_IEEE80211R */
@@ -444,12 +585,17 @@ int hostapd_setup_wpa(struct hostapd_data *hapd)
        const u8 *wpa_ie;
        size_t wpa_ie_len;
 
-       hostapd_wpa_auth_conf(hapd->conf, &_conf);
+       hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
+       if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
+               _conf.tx_status = 1;
+       if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
+               _conf.ap_mlme = 1;
        os_memset(&cb, 0, sizeof(cb));
        cb.ctx = hapd;
        cb.logger = hostapd_wpa_auth_logger;
        cb.disconnect = hostapd_wpa_auth_disconnect;
        cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
+       cb.psk_failure_report = hostapd_wpa_auth_psk_failure_report;
        cb.set_eapol = hostapd_wpa_auth_set_eapol;
        cb.get_eapol = hostapd_wpa_auth_get_eapol;
        cb.get_psk = hostapd_wpa_auth_get_psk;
@@ -463,6 +609,7 @@ int hostapd_setup_wpa(struct hostapd_data *hapd)
 #ifdef CONFIG_IEEE80211R
        cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
        cb.add_sta = hostapd_wpa_auth_add_sta;
+       cb.add_tspec = hostapd_wpa_auth_add_tspec;
 #endif /* CONFIG_IEEE80211R */
        hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
        if (hapd->wpa_auth == NULL) {
@@ -490,11 +637,12 @@ int hostapd_setup_wpa(struct hostapd_data *hapd)
        }
 
 #ifdef CONFIG_IEEE80211R
-       if (!hostapd_drv_none(hapd)) {
+       if (!hostapd_drv_none(hapd) && hapd->conf->ft_over_ds &&
+           wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) {
                hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
                                          hapd->conf->bridge :
                                          hapd->conf->iface, NULL, ETH_P_RRB,
-                                         hostapd_rrb_receive, hapd, 0);
+                                         hostapd_rrb_receive, hapd, 1);
                if (hapd->l2 == NULL &&
                    (hapd->driver == NULL ||
                     hapd->driver->send_ether == NULL)) {
@@ -513,13 +661,14 @@ int hostapd_setup_wpa(struct hostapd_data *hapd)
 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
 {
        struct wpa_auth_config wpa_auth_conf;
-       hostapd_wpa_auth_conf(hapd->conf, &wpa_auth_conf);
+       hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
        wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
 }
 
 
 void hostapd_deinit_wpa(struct hostapd_data *hapd)
 {
+       ieee80211_tkip_countermeasures_deinit(hapd);
        rsn_preauth_iface_deinit(hapd);
        if (hapd->wpa_auth) {
                wpa_deinit(hapd->wpa_auth);
@@ -541,5 +690,6 @@ void hostapd_deinit_wpa(struct hostapd_data *hapd)
 
 #ifdef CONFIG_IEEE80211R
        l2_packet_deinit(hapd->l2);
+       hapd->l2 = NULL;
 #endif /* CONFIG_IEEE80211R */
 }