]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - net/mac80211/mlme.c
Merge branch 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
[karo-tx-linux.git] / net / mac80211 / mlme.c
index 245dce969b31165078c04fca9a5fc963457e9d68..dee50aefd6e868e247ba869e9e9883d4640330e3 100644 (file)
@@ -131,13 +131,13 @@ void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
        if (unlikely(!sdata->u.mgd.associated))
                return;
 
+       ifmgd->probe_send_count = 0;
+
        if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
                return;
 
        mod_timer(&sdata->u.mgd.conn_mon_timer,
                  round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
-
-       ifmgd->probe_send_count = 0;
 }
 
 static int ecw2cw(int ecw)
@@ -531,6 +531,7 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
        u8 *pos;
        u32 cap;
        struct ieee80211_sta_vht_cap vht_cap;
+       u32 mask, ap_bf_sts, our_bf_sts;
 
        BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap));
 
@@ -558,6 +559,16 @@ static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata,
                        cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)))
                cap &= ~IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
 
+       mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
+
+       ap_bf_sts = le32_to_cpu(ap_vht_cap->vht_cap_info) & mask;
+       our_bf_sts = cap & mask;
+
+       if (ap_bf_sts < our_bf_sts) {
+               cap &= ~mask;
+               cap |= ap_bf_sts;
+       }
+
        /* reserve and fill IE */
        pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
        ieee80211_ie_build_vht_cap(pos, &vht_cap, cap);
@@ -768,6 +779,34 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
                ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param,
                                    sband, chan, sdata->smps_mode);
 
+       /* if present, add any custom IEs that go before VHT */
+       if (assoc_data->ie_len) {
+               static const u8 before_vht[] = {
+                       WLAN_EID_SSID,
+                       WLAN_EID_SUPP_RATES,
+                       WLAN_EID_EXT_SUPP_RATES,
+                       WLAN_EID_PWR_CAPABILITY,
+                       WLAN_EID_SUPPORTED_CHANNELS,
+                       WLAN_EID_RSN,
+                       WLAN_EID_QOS_CAPA,
+                       WLAN_EID_RRM_ENABLED_CAPABILITIES,
+                       WLAN_EID_MOBILITY_DOMAIN,
+                       WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
+                       WLAN_EID_HT_CAPABILITY,
+                       WLAN_EID_BSS_COEX_2040,
+                       WLAN_EID_EXT_CAPABILITY,
+                       WLAN_EID_QOS_TRAFFIC_CAPA,
+                       WLAN_EID_TIM_BCAST_REQ,
+                       WLAN_EID_INTERWORKING,
+               };
+               noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len,
+                                            before_vht, ARRAY_SIZE(before_vht),
+                                            offset);
+               pos = skb_put(skb, noffset - offset);
+               memcpy(pos, assoc_data->ie + offset, noffset - offset);
+               offset = noffset;
+       }
+
        if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
                ieee80211_add_vht_ie(sdata, skb, sband,
                                     &assoc_data->ap_vht_cap);
@@ -1024,7 +1063,6 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
        }
 
        ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
-       sdata->vif.csa_active = true;
 
        mutex_lock(&local->chanctx_mtx);
        if (local->use_chanctx) {
@@ -1062,6 +1100,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
        mutex_unlock(&local->chanctx_mtx);
 
        sdata->csa_chandef = csa_ie.chandef;
+       sdata->vif.csa_active = true;
 
        if (csa_ie.mode)
                ieee80211_stop_queues_by_reason(&local->hw,
@@ -2233,6 +2272,62 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
        /* ignore frame -- wait for timeout */
 }
 
+#define case_WLAN(type) \
+       case WLAN_REASON_##type: return #type
+
+static const char *ieee80211_get_reason_code_string(u16 reason_code)
+{
+       switch (reason_code) {
+       case_WLAN(UNSPECIFIED);
+       case_WLAN(PREV_AUTH_NOT_VALID);
+       case_WLAN(DEAUTH_LEAVING);
+       case_WLAN(DISASSOC_DUE_TO_INACTIVITY);
+       case_WLAN(DISASSOC_AP_BUSY);
+       case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA);
+       case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA);
+       case_WLAN(DISASSOC_STA_HAS_LEFT);
+       case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH);
+       case_WLAN(DISASSOC_BAD_POWER);
+       case_WLAN(DISASSOC_BAD_SUPP_CHAN);
+       case_WLAN(INVALID_IE);
+       case_WLAN(MIC_FAILURE);
+       case_WLAN(4WAY_HANDSHAKE_TIMEOUT);
+       case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT);
+       case_WLAN(IE_DIFFERENT);
+       case_WLAN(INVALID_GROUP_CIPHER);
+       case_WLAN(INVALID_PAIRWISE_CIPHER);
+       case_WLAN(INVALID_AKMP);
+       case_WLAN(UNSUPP_RSN_VERSION);
+       case_WLAN(INVALID_RSN_IE_CAP);
+       case_WLAN(IEEE8021X_FAILED);
+       case_WLAN(CIPHER_SUITE_REJECTED);
+       case_WLAN(DISASSOC_UNSPECIFIED_QOS);
+       case_WLAN(DISASSOC_QAP_NO_BANDWIDTH);
+       case_WLAN(DISASSOC_LOW_ACK);
+       case_WLAN(DISASSOC_QAP_EXCEED_TXOP);
+       case_WLAN(QSTA_LEAVE_QBSS);
+       case_WLAN(QSTA_NOT_USE);
+       case_WLAN(QSTA_REQUIRE_SETUP);
+       case_WLAN(QSTA_TIMEOUT);
+       case_WLAN(QSTA_CIPHER_NOT_SUPP);
+       case_WLAN(MESH_PEER_CANCELED);
+       case_WLAN(MESH_MAX_PEERS);
+       case_WLAN(MESH_CONFIG);
+       case_WLAN(MESH_CLOSE);
+       case_WLAN(MESH_MAX_RETRIES);
+       case_WLAN(MESH_CONFIRM_TIMEOUT);
+       case_WLAN(MESH_INVALID_GTK);
+       case_WLAN(MESH_INCONSISTENT_PARAM);
+       case_WLAN(MESH_INVALID_SECURITY);
+       case_WLAN(MESH_PATH_ERROR);
+       case_WLAN(MESH_PATH_NOFORWARD);
+       case_WLAN(MESH_PATH_DEST_UNREACHABLE);
+       case_WLAN(MAC_EXISTS_IN_MBSS);
+       case_WLAN(MESH_CHAN_REGULATORY);
+       case_WLAN(MESH_CHAN);
+       default: return "<unknown>";
+       }
+}
 
 static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
                                     struct ieee80211_mgmt *mgmt, size_t len)
@@ -2254,8 +2349,8 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
 
        reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
 
-       sdata_info(sdata, "deauthenticated from %pM (Reason: %u)\n",
-                  bssid, reason_code);
+       sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n",
+                  bssid, reason_code, ieee80211_get_reason_code_string(reason_code));
 
        ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
 
@@ -2688,28 +2783,20 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
                                  struct ieee802_11_elems *elems)
 {
        struct ieee80211_local *local = sdata->local;
-       int freq;
        struct ieee80211_bss *bss;
        struct ieee80211_channel *channel;
 
        sdata_assert_lock(sdata);
 
-       if (elems->ds_params)
-               freq = ieee80211_channel_to_frequency(elems->ds_params[0],
-                                                     rx_status->band);
-       else
-               freq = rx_status->freq;
-
-       channel = ieee80211_get_channel(local->hw.wiphy, freq);
-
-       if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
+       channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
+       if (!channel)
                return;
 
        bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
                                        channel);
        if (bss) {
-               ieee80211_rx_bss_put(local, bss);
                sdata->vif.bss_conf.beacon_rate = bss->beacon_rate;
+               ieee80211_rx_bss_put(local, bss);
        }
 }
 
@@ -3504,6 +3591,32 @@ static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata)
 }
 
 #ifdef CONFIG_PM
+void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata)
+{
+       struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+       u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
+
+       sdata_lock(sdata);
+
+       if (ifmgd->auth_data) {
+               /*
+                * If we are trying to authenticate while suspending, cfg80211
+                * won't know and won't actually abort those attempts, thus we
+                * need to do that ourselves.
+                */
+               ieee80211_send_deauth_disassoc(sdata,
+                                              ifmgd->auth_data->bss->bssid,
+                                              IEEE80211_STYPE_DEAUTH,
+                                              WLAN_REASON_DEAUTH_LEAVING,
+                                              false, frame_buf);
+               ieee80211_destroy_auth_data(sdata, false);
+               cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+                                     IEEE80211_DEAUTH_FRAME_LEN);
+       }
+
+       sdata_unlock(sdata);
+}
+
 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
 {
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
@@ -4322,37 +4435,41 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
        u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN];
        bool tx = !req->local_state_change;
-       bool report_frame = false;
 
-       sdata_info(sdata,
-                  "deauthenticating from %pM by local choice (reason=%d)\n",
-                  req->bssid, req->reason_code);
+       if (ifmgd->auth_data &&
+           ether_addr_equal(ifmgd->auth_data->bss->bssid, req->bssid)) {
+               sdata_info(sdata,
+                          "aborting authentication with %pM by local choice (Reason: %u=%s)\n",
+                          req->bssid, req->reason_code,
+                          ieee80211_get_reason_code_string(req->reason_code));
 
-       if (ifmgd->auth_data) {
                drv_mgd_prepare_tx(sdata->local, sdata);
                ieee80211_send_deauth_disassoc(sdata, req->bssid,
                                               IEEE80211_STYPE_DEAUTH,
                                               req->reason_code, tx,
                                               frame_buf);
                ieee80211_destroy_auth_data(sdata, false);
+               cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
+                                     IEEE80211_DEAUTH_FRAME_LEN);
 
-               report_frame = true;
-               goto out;
+               return 0;
        }
 
        if (ifmgd->associated &&
            ether_addr_equal(ifmgd->associated->bssid, req->bssid)) {
+               sdata_info(sdata,
+                          "deauthenticating from %pM by local choice (Reason: %u=%s)\n",
+                          req->bssid, req->reason_code,
+                          ieee80211_get_reason_code_string(req->reason_code));
+
                ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
                                       req->reason_code, tx, frame_buf);
-               report_frame = true;
-       }
-
- out:
-       if (report_frame)
                cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
                                      IEEE80211_DEAUTH_FRAME_LEN);
+               return 0;
+       }
 
-       return 0;
+       return -ENOTCONN;
 }
 
 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
@@ -4372,8 +4489,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
                return -ENOLINK;
 
        sdata_info(sdata,
-                  "disassociating from %pM by local choice (reason=%d)\n",
-                  req->bss->bssid, req->reason_code);
+                  "disassociating from %pM by local choice (Reason: %u=%s)\n",
+                  req->bss->bssid, req->reason_code, ieee80211_get_reason_code_string(req->reason_code));
 
        memcpy(bssid, req->bss->bssid, ETH_ALEN);
        ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC,