Remove unneeded inclusion of hostapd header files
[wpasupplicant] / hostapd / ieee802_11.c
index c8f6ed8..f60c72d 100644 (file)
@@ -34,7 +34,7 @@
 #include "wme.h"
 #include "ap_list.h"
 #include "accounting.h"
-#include "driver.h"
+#include "driver_i.h"
 #include "mlme.h"
 
 
@@ -301,8 +301,9 @@ static u8 * hostapd_eid_assoc_comeback_time(struct hostapd_data *hapd,
        u32 timeout, tu;
        struct os_time now, passed;
 
-       *pos++ = WLAN_EID_ASSOC_COMEBACK_TIME;
-       *pos++ = 4;
+       *pos++ = WLAN_EID_TIMEOUT_INTERVAL;
+       *pos++ = 5;
+       *pos++ = WLAN_TIMEOUT_ASSOC_COMEBACK;
        os_get_time(&now);
        os_time_sub(&now, &sta->sa_query_start, &passed);
        tu = (passed.sec * 1000000 + passed.usec) / 1024;
@@ -335,6 +336,12 @@ void ieee802_11_print_ssid(char *buf, const u8 *ssid, u8 len)
 }
 
 
+/**
+ * ieee802_11_send_deauth - Send Deauthentication frame
+ * @hapd: hostapd BSS data
+ * @addr: Address of the destination STA
+ * @reason: Reason code for Deauthentication
+ */
 void ieee802_11_send_deauth(struct hostapd_data *hapd, u8 *addr, u16 reason)
 {
        struct ieee80211_mgmt mgmt;
@@ -350,7 +357,7 @@ void ieee802_11_send_deauth(struct hostapd_data *hapd, u8 *addr, u16 reason)
        os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
        mgmt.u.deauth.reason_code = host_to_le16(reason);
        if (hostapd_send_mgmt_frame(hapd, &mgmt, IEEE80211_HDRLEN +
-                                   sizeof(mgmt.u.deauth), 0) < 0)
+                                   sizeof(mgmt.u.deauth)) < 0)
                perror("ieee802_11_send_deauth: send");
 }
 
@@ -445,7 +452,7 @@ static void send_auth_reply(struct hostapd_data *hapd,
                   " auth_alg=%d auth_transaction=%d resp=%d (IE len=%lu)",
                   MAC2STR(dst), auth_alg, auth_transaction,
                   resp, (unsigned long) ies_len);
-       if (hostapd_send_mgmt_frame(hapd, reply, rlen, 0) < 0)
+       if (hostapd_send_mgmt_frame(hapd, reply, rlen) < 0)
                perror("send_auth_reply: send");
 
        os_free(buf);
@@ -658,6 +665,39 @@ static void handle_auth(struct hostapd_data *hapd, struct ieee80211_mgmt *mgmt,
 }
 
 
+static int hostapd_get_aid(struct hostapd_data *hapd, struct sta_info *sta)
+{
+       int i, j = 32, aid;
+
+       /* get a unique AID */
+       if (sta->aid > 0) {
+               wpa_printf(MSG_DEBUG, "  old AID %d", sta->aid);
+               return 0;
+       }
+
+       for (i = 0; i < AID_WORDS; i++) {
+               if (hapd->sta_aid[i] == (u32) -1)
+                       continue;
+               for (j = 0; j < 32; j++) {
+                       if (!(hapd->sta_aid[i] & BIT(j)))
+                               break;
+               }
+               if (j < 32)
+                       break;
+       }
+       if (j == 32)
+               return -1;
+       aid = i * 32 + j + 1;
+       if (aid > 2007)
+               return -1;
+
+       sta->aid = aid;
+       hapd->sta_aid[i] |= BIT(j);
+       wpa_printf(MSG_DEBUG, "  new AID %d", sta->aid);
+       return 0;
+}
+
+
 static void handle_assoc(struct hostapd_data *hapd,
                         struct ieee80211_mgmt *mgmt, size_t len, int reassoc)
 {
@@ -668,7 +708,7 @@ static void handle_assoc(struct hostapd_data *hapd,
        int send_deauth = 0, send_len, left, i;
        struct sta_info *sta;
        struct ieee802_11_elems elems;
-       u8 buf[sizeof(struct ieee80211_mgmt) + 512];
+       u8 buf[sizeof(struct ieee80211_mgmt) + 1024];
        struct ieee80211_mgmt *reply;
 
        if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
@@ -759,16 +799,16 @@ static void handle_assoc(struct hostapd_data *hapd,
                goto fail;
        }
 
-       sta->flags &= ~WLAN_STA_WME;
-       if (elems.wme && hapd->conf->wme_enabled) {
-               if (hostapd_eid_wme_valid(hapd, elems.wme, elems.wme_len))
+       sta->flags &= ~WLAN_STA_WMM;
+       if (elems.wmm && hapd->conf->wmm_enabled) {
+               if (hostapd_eid_wmm_valid(hapd, elems.wmm, elems.wmm_len))
                        hostapd_logger(hapd, sta->addr,
                                       HOSTAPD_MODULE_WPA,
                                       HOSTAPD_LEVEL_DEBUG,
-                                      "invalid WME element in association "
+                                      "invalid WMM element in association "
                                       "request");
                else
-                       sta->flags |= WLAN_STA_WME;
+                       sta->flags |= WLAN_STA_WMM;
        }
 
        if (!elems.supp_rates) {
@@ -904,7 +944,8 @@ static void handle_assoc(struct hostapd_data *hapd,
                if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
                    sta->sa_query_count > 0)
                        ap_check_sa_query_timeout(hapd, sta);
-               if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out) {
+               if ((sta->flags & WLAN_STA_MFP) && !sta->sa_query_timed_out &&
+                   (!reassoc || sta->auth_alg != WLAN_AUTH_FT)) {
                        /*
                         * STA has already been associated with MFP and SA
                         * Query timeout has not been reached. Reject the
@@ -1036,22 +1077,10 @@ static void handle_assoc(struct hostapd_data *hapd,
                ieee802_11_set_beacons(hapd->iface);
 #endif /* CONFIG_IEEE80211N */
 
-       /* get a unique AID */
-       if (sta->aid > 0) {
-               wpa_printf(MSG_DEBUG, "  old AID %d", sta->aid);
-       } else {
-               for (sta->aid = 1; sta->aid <= MAX_AID_TABLE_SIZE; sta->aid++)
-                       if (hapd->sta_aid[sta->aid - 1] == NULL)
-                               break;
-               if (sta->aid > MAX_AID_TABLE_SIZE) {
-                       sta->aid = 0;
-                       resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
-                       wpa_printf(MSG_ERROR, "  no room for more AIDs");
-                       goto fail;
-               } else {
-                       hapd->sta_aid[sta->aid - 1] = sta;
-                       wpa_printf(MSG_DEBUG, "  new AID %d", sta->aid);
-               }
+       if (hostapd_get_aid(hapd, sta) < 0) {
+               resp = WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA;
+               wpa_printf(MSG_ERROR, "  no room for more AIDs");
+               goto fail;
        }
 
        hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
@@ -1060,6 +1089,19 @@ static void handle_assoc(struct hostapd_data *hapd,
        /* Station will be marked associated, after it acknowledges AssocResp
         */
 
+#ifdef CONFIG_IEEE80211W
+       if ((sta->flags & WLAN_STA_MFP) && sta->sa_query_timed_out) {
+               wpa_printf(MSG_DEBUG, "Allowing %sassociation after timed out "
+                          "SA Query procedure", reassoc ? "re" : "");
+               /* TODO: Send a protected Disassociate frame to the STA using
+                * the old key and Reason Code "Previous Authentication no
+                * longer valid". Make sure this is only sent protected since
+                * unprotected frame would be received by the STA that is now
+                * trying to associate.
+                */
+       }
+#endif /* CONFIG_IEEE80211W */
+
        if (reassoc) {
                os_memcpy(sta->previous_ap, mgmt->u.reassoc_req.current_ap,
                          ETH_ALEN);
@@ -1103,8 +1145,8 @@ static void handle_assoc(struct hostapd_data *hapd,
                p = hostapd_eid_supp_rates(hapd, reply->u.assoc_resp.variable);
                /* Extended supported rates */
                p = hostapd_eid_ext_supp_rates(hapd, p);
-               if (sta->flags & WLAN_STA_WME)
-                       p = hostapd_eid_wme(hapd, p);
+               if (sta->flags & WLAN_STA_WMM)
+                       p = hostapd_eid_wmm(hapd, p);
 
                p = hostapd_eid_ht_capabilities_info(hapd, p);
                p = hostapd_eid_ht_operation(hapd, p);
@@ -1112,10 +1154,11 @@ static void handle_assoc(struct hostapd_data *hapd,
 #ifdef CONFIG_IEEE80211R
                if (resp == WLAN_STATUS_SUCCESS) {
                        /* IEEE 802.11r: Mobility Domain Information, Fast BSS
-                        * Transition Information, RSN */
+                        * Transition Information, RSN, [RIC Response] */
                        p = wpa_sm_write_assoc_resp_ies(sta->wpa_sm, p,
                                                        buf + sizeof(buf) - p,
-                                                       sta->auth_alg);
+                                                       sta->auth_alg,
+                                                       pos, left);
                }
 #endif /* CONFIG_IEEE80211R */
 
@@ -1127,7 +1170,7 @@ static void handle_assoc(struct hostapd_data *hapd,
                send_len += p - reply->u.assoc_resp.variable;
        }
 
-       if (hostapd_send_mgmt_frame(hapd, reply, send_len, 0) < 0)
+       if (hostapd_send_mgmt_frame(hapd, reply, send_len) < 0)
                perror("handle_assoc: send");
 }
 
@@ -1236,6 +1279,30 @@ static void handle_beacon(struct hostapd_data *hapd,
 
 
 #ifdef CONFIG_IEEE80211W
+
+/* MLME-SAQuery.request */
+void ieee802_11_send_sa_query_req(struct hostapd_data *hapd,
+                                 const u8 *addr, const u8 *trans_id)
+{
+       struct ieee80211_mgmt mgmt;
+       u8 *end;
+
+       os_memset(&mgmt, 0, sizeof(mgmt));
+       mgmt.frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
+                                         WLAN_FC_STYPE_ACTION);
+       os_memcpy(mgmt.da, addr, ETH_ALEN);
+       os_memcpy(mgmt.sa, hapd->own_addr, ETH_ALEN);
+       os_memcpy(mgmt.bssid, hapd->own_addr, ETH_ALEN);
+       mgmt.u.action.category = WLAN_ACTION_SA_QUERY;
+       mgmt.u.action.u.sa_query_req.action = WLAN_SA_QUERY_REQUEST;
+       os_memcpy(mgmt.u.action.u.sa_query_req.trans_id, trans_id,
+                 WLAN_SA_QUERY_TR_ID_LEN);
+       end = mgmt.u.action.u.sa_query_req.trans_id + WLAN_SA_QUERY_TR_ID_LEN;
+       if (hostapd_send_mgmt_frame(hapd, &mgmt, end - (u8 *) &mgmt) < 0)
+               perror("ieee802_11_send_sa_query_req: send");
+}
+
+
 static void hostapd_sa_query_action(struct hostapd_data *hapd,
                                    struct ieee80211_mgmt *mgmt, size_t len)
 {
@@ -1321,7 +1388,7 @@ static void handle_action(struct hostapd_data *hapd,
        }
 #endif /* CONFIG_IEEE80211R */
        case WLAN_ACTION_WMM:
-               hostapd_wme_action(hapd, mgmt, len);
+               hostapd_wmm_action(hapd, mgmt, len);
                return;
 #ifdef CONFIG_IEEE80211W
        case WLAN_ACTION_SA_QUERY:
@@ -1349,7 +1416,7 @@ static void handle_action(struct hostapd_data *hapd,
                os_memcpy(mgmt->bssid, hapd->own_addr, ETH_ALEN);
                mgmt->u.action.category |= 0x80;
 
-               hostapd_send_mgmt_frame(hapd, mgmt, len, 0);
+               hostapd_send_mgmt_frame(hapd, mgmt, len);
        }
 }
 
@@ -1361,6 +1428,7 @@ static void handle_action(struct hostapd_data *hapd,
  * @buf: management frame data (starting from IEEE 802.11 header)
  * @len: length of frame data in octets
  * @stype: management frame subtype from frame control field
+ * @fi: meta data about received frame (signal level, etc.)
  *
  * Process all incoming IEEE 802.11 management frames. This will be called for
  * each frame received from the kernel driver through wlan#ap interface. In
@@ -1481,6 +1549,34 @@ static void handle_auth_cb(struct hostapd_data *hapd,
 }
 
 
+#ifdef CONFIG_IEEE80211N
+static void
+hostapd_get_ht_capab(struct hostapd_data *hapd,
+                    struct ht_cap_ie *ht_cap_ie,
+                    struct ht_cap_ie *neg_ht_cap_ie)
+{
+
+       os_memcpy(neg_ht_cap_ie, ht_cap_ie, sizeof(struct ht_cap_ie));
+       neg_ht_cap_ie->data.capabilities_info =
+               ht_cap_ie->data.capabilities_info & hapd->iconf->ht_capab;
+
+       neg_ht_cap_ie->data.capabilities_info &= ~HT_CAP_INFO_SMPS_DISABLED;
+       if ((ht_cap_ie->data.capabilities_info & HT_CAP_INFO_SMPS_DISABLED) ==
+           (hapd->iconf->ht_capab & HT_CAP_INFO_SMPS_DISABLED))
+               neg_ht_cap_ie->data.capabilities_info |=
+                       hapd->iconf->ht_capab & HT_CAP_INFO_SMPS_DISABLED;
+       else
+               neg_ht_cap_ie->data.capabilities_info |=
+                       HT_CAP_INFO_SMPS_DISABLED;
+
+       /* FIXME: Rx STBC needs to be handled specially */
+       neg_ht_cap_ie->data.capabilities_info &= ~HT_CAP_INFO_RX_STBC_MASK;
+       neg_ht_cap_ie->data.capabilities_info |=
+               hapd->iconf->ht_capab & HT_CAP_INFO_RX_STBC_MASK;
+}
+#endif /* CONFIG_IEEE80211N */
+
+
 static void handle_assoc_cb(struct hostapd_data *hapd,
                            struct ieee80211_mgmt *mgmt,
                            size_t len, int reassoc, int ok)
@@ -1488,7 +1584,10 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
        u16 status;
        struct sta_info *sta;
        int new_assoc = 1;
-       struct ht_cap_ie *ht_cap = NULL;
+#ifdef CONFIG_IEEE80211N
+       struct ht_cap_ie ht_cap;
+#endif /* CONFIG_IEEE80211N */
+       struct ht_cap_ie *ht_cap_ptr = NULL;
 
        if (!ok) {
                hostapd_logger(hapd, mgmt->da, HOSTAPD_MODULE_IEEE80211,
@@ -1531,6 +1630,10 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
        if (sta->flags & WLAN_STA_ASSOC)
                new_assoc = 0;
        sta->flags |= WLAN_STA_ASSOC;
+       if (!hapd->conf->ieee802_1x && !hapd->conf->wpa) {
+               /* Open or static WEP; no separate authorization */
+               sta->flags |= WLAN_STA_AUTHORIZED;
+       }
 
        if (reassoc)
                mlme_reassociate_indication(hapd, sta);
@@ -1538,8 +1641,10 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
                mlme_associate_indication(hapd, sta);
 
 #ifdef CONFIG_IEEE80211N
-       if (sta->flags & WLAN_STA_HT)
-               ht_cap = &sta->ht_capabilities;
+       if (sta->flags & WLAN_STA_HT) {
+               ht_cap_ptr = &ht_cap;
+               hostapd_get_ht_capab(hapd, &sta->ht_capabilities, ht_cap_ptr);
+       }
 #endif /* CONFIG_IEEE80211N */
 
 #ifdef CONFIG_IEEE80211W
@@ -1549,7 +1654,7 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
        if (hostapd_sta_add(hapd->conf->iface, hapd, sta->addr, sta->aid,
                            sta->capability, sta->supported_rates,
                            sta->supported_rates_len, 0, sta->listen_interval,
-                           ht_cap))
+                           ht_cap_ptr))
        {
                hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
                               HOSTAPD_LEVEL_NOTICE,
@@ -1592,6 +1697,15 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
 }
 
 
+/**
+ * ieee802_11_mgmt_cb - Process management frame TX status callback
+ * @hapd: hostapd BSS data structure (the BSS from which the management frame
+ * was sent from)
+ * @buf: management frame data (starting from IEEE 802.11 header)
+ * @len: length of frame data in octets
+ * @stype: management frame subtype from frame control field
+ * @ok: Whether the frame was ACK'ed
+ */
 void ieee802_11_mgmt_cb(struct hostapd_data *hapd, u8 *buf, size_t len,
                        u16 stype, int ok)
 {
@@ -1626,76 +1740,6 @@ void ieee802_11_mgmt_cb(struct hostapd_data *hapd, u8 *buf, size_t len,
 }
 
 
-static void ieee80211_tkip_countermeasures_stop(void *eloop_ctx,
-                                               void *timeout_ctx)
-{
-       struct hostapd_data *hapd = eloop_ctx;
-       hapd->tkip_countermeasures = 0;
-       hostapd_set_countermeasures(hapd, 0);
-       hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
-                      HOSTAPD_LEVEL_INFO, "TKIP countermeasures ended");
-}
-
-
-static void ieee80211_tkip_countermeasures_start(struct hostapd_data *hapd)
-{
-       struct sta_info *sta;
-
-       hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE80211,
-                      HOSTAPD_LEVEL_INFO, "TKIP countermeasures initiated");
-
-       wpa_auth_countermeasures_start(hapd->wpa_auth);
-       hapd->tkip_countermeasures = 1;
-       hostapd_set_countermeasures(hapd, 1);
-       wpa_gtk_rekey(hapd->wpa_auth);
-       eloop_cancel_timeout(ieee80211_tkip_countermeasures_stop, hapd, NULL);
-       eloop_register_timeout(60, 0, ieee80211_tkip_countermeasures_stop,
-                              hapd, NULL);
-       for (sta = hapd->sta_list; sta != NULL; sta = sta->next) {
-               hostapd_sta_deauth(hapd, sta->addr,
-                                  WLAN_REASON_MICHAEL_MIC_FAILURE);
-               sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC |
-                               WLAN_STA_AUTHORIZED);
-               hostapd_sta_remove(hapd, sta->addr);
-       }
-}
-
-
-void ieee80211_michael_mic_failure(struct hostapd_data *hapd, const u8 *addr,
-                                  int local)
-{
-       time_t now;
-
-       if (addr && local) {
-               struct sta_info *sta = ap_get_sta(hapd, addr);
-               if (sta != NULL) {
-                       wpa_auth_sta_local_mic_failure_report(sta->wpa_sm);
-                       hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE80211,
-                                      HOSTAPD_LEVEL_INFO,
-                                      "Michael MIC failure detected in "
-                                      "received frame");
-                       mlme_michaelmicfailure_indication(hapd, addr);
-               } else {
-                       wpa_printf(MSG_DEBUG,
-                                  "MLME-MICHAELMICFAILURE.indication "
-                                  "for not associated STA (" MACSTR
-                                  ") ignored", MAC2STR(addr));
-                       return;
-               }
-       }
-
-       time(&now);
-       if (now > hapd->michael_mic_failure + 60) {
-               hapd->michael_mic_failures = 1;
-       } else {
-               hapd->michael_mic_failures++;
-               if (hapd->michael_mic_failures > 1)
-                       ieee80211_tkip_countermeasures_start(hapd);
-       }
-       hapd->michael_mic_failure = now;
-}
-
-
 int ieee802_11_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
 {
        /* TODO */