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mac80211: support driver-based disconnect with reconnect hint
Support the driver indicating that a disconnection needs to be performed, and pass through the reconnect hint in this case. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/iwlwifi.20201206145305.5c8dab7a22a0.I58459fdf6968b16c90cab9c574f0f04ca22b0c79@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
parent
3bb02143ff
commit
3f8a39ff28
@ -5899,6 +5899,17 @@ void ieee80211_beacon_loss(struct ieee80211_vif *vif);
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*/
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void ieee80211_connection_loss(struct ieee80211_vif *vif);
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/**
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* ieee80211_disconnect - request disconnection
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*
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* @vif: &struct ieee80211_vif pointer from the add_interface callback.
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* @reconnect: immediate reconnect is desired
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*
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* Request disconnection from the current network and, if enabled, send a
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* hint to the higher layers that immediate reconnect is desired.
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*/
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void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect);
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/**
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* ieee80211_resume_disconnect - disconnect from AP after resume
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*
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@ -452,7 +452,9 @@ struct ieee80211_if_managed {
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unsigned long probe_timeout;
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int probe_send_count;
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bool nullfunc_failed;
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bool connection_loss;
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u8 connection_loss:1,
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driver_disconnect:1,
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reconnect:1;
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struct cfg80211_bss *associated;
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struct ieee80211_mgd_auth_data *auth_data;
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@ -2732,7 +2732,7 @@ EXPORT_SYMBOL(ieee80211_ap_probereq_get);
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static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata,
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const u8 *buf, size_t len, bool tx,
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u16 reason)
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u16 reason, bool reconnect)
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{
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struct ieee80211_event event = {
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.type = MLME_EVENT,
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@ -2741,7 +2741,7 @@ static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata,
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};
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if (tx)
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cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, false);
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cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect);
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else
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cfg80211_rx_mlme_mgmt(sdata->dev, buf, len);
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@ -2763,13 +2763,18 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
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tx = !sdata->csa_block_tx;
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/* AP is probably out of range (or not reachable for another reason) so
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* remove the bss struct for that AP.
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*/
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cfg80211_unlink_bss(local->hw.wiphy, ifmgd->associated);
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if (!ifmgd->driver_disconnect) {
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/*
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* AP is probably out of range (or not reachable for another
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* reason) so remove the bss struct for that AP.
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*/
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cfg80211_unlink_bss(local->hw.wiphy, ifmgd->associated);
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}
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ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH,
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
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ifmgd->driver_disconnect ?
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WLAN_REASON_DEAUTH_LEAVING :
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
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tx, frame_buf);
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mutex_lock(&local->mtx);
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sdata->vif.csa_active = false;
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@ -2782,7 +2787,9 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
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mutex_unlock(&local->mtx);
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ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx,
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
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WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
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ifmgd->reconnect);
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ifmgd->reconnect = false;
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sdata_unlock(sdata);
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}
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@ -2801,6 +2808,13 @@ static void ieee80211_beacon_connection_loss_work(struct work_struct *work)
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sdata_info(sdata, "Connection to AP %pM lost\n",
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ifmgd->bssid);
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__ieee80211_disconnect(sdata);
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ifmgd->connection_loss = false;
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} else if (ifmgd->driver_disconnect) {
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sdata_info(sdata,
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"Driver requested disconnection from AP %pM\n",
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ifmgd->bssid);
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__ieee80211_disconnect(sdata);
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ifmgd->driver_disconnect = false;
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} else {
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ieee80211_mgd_probe_ap(sdata, true);
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}
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@ -2839,6 +2853,21 @@ void ieee80211_connection_loss(struct ieee80211_vif *vif)
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}
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EXPORT_SYMBOL(ieee80211_connection_loss);
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void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect)
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{
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struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
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struct ieee80211_hw *hw = &sdata->local->hw;
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trace_api_disconnect(sdata, reconnect);
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if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
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return;
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sdata->u.mgd.driver_disconnect = true;
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sdata->u.mgd.reconnect = reconnect;
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ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
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}
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EXPORT_SYMBOL(ieee80211_disconnect);
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static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata,
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bool assoc)
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@ -3142,7 +3171,7 @@ static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
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ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
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ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false,
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reason_code);
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reason_code, false);
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return;
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}
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@ -3191,7 +3220,8 @@ static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
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ieee80211_set_disassoc(sdata, 0, 0, false, NULL);
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ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code);
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ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code,
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false);
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}
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static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
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@ -4204,7 +4234,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
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true, deauth_buf);
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ieee80211_report_disconnect(sdata, deauth_buf,
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sizeof(deauth_buf), true,
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WLAN_REASON_DEAUTH_LEAVING);
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WLAN_REASON_DEAUTH_LEAVING,
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false);
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return;
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}
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@ -4349,7 +4380,7 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
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tx, frame_buf);
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ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
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reason);
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reason, false);
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}
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static int ieee80211_auth(struct ieee80211_sub_if_data *sdata)
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@ -5436,7 +5467,8 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
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ieee80211_report_disconnect(sdata, frame_buf,
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sizeof(frame_buf), true,
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WLAN_REASON_UNSPECIFIED);
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WLAN_REASON_UNSPECIFIED,
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false);
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}
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sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid);
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@ -5508,7 +5540,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
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ieee80211_report_disconnect(sdata, frame_buf,
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sizeof(frame_buf), true,
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WLAN_REASON_UNSPECIFIED);
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WLAN_REASON_UNSPECIFIED,
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false);
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}
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if (ifmgd->auth_data && !ifmgd->auth_data->done) {
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@ -5807,7 +5840,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
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ieee80211_destroy_auth_data(sdata, false);
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ieee80211_report_disconnect(sdata, frame_buf,
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sizeof(frame_buf), true,
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req->reason_code);
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req->reason_code, false);
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return 0;
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}
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@ -5827,7 +5860,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
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ieee80211_destroy_assoc_data(sdata, false, true);
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ieee80211_report_disconnect(sdata, frame_buf,
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sizeof(frame_buf), true,
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req->reason_code);
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req->reason_code, false);
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return 0;
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}
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@ -5842,7 +5875,7 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
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req->reason_code, tx, frame_buf);
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ieee80211_report_disconnect(sdata, frame_buf,
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sizeof(frame_buf), true,
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req->reason_code);
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req->reason_code, false);
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return 0;
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}
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@ -5875,7 +5908,7 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
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frame_buf);
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ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true,
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req->reason_code);
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req->reason_code, false);
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return 0;
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}
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@ -2,7 +2,7 @@
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/*
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* Portions of this file
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* Copyright(c) 2016-2017 Intel Deutschland GmbH
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* Copyright (C) 2018 - 2019 Intel Corporation
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* Copyright (C) 2018 - 2020 Intel Corporation
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*/
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#if !defined(__MAC80211_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
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@ -2086,6 +2086,27 @@ TRACE_EVENT(api_connection_loss,
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)
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);
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TRACE_EVENT(api_disconnect,
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TP_PROTO(struct ieee80211_sub_if_data *sdata, bool reconnect),
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TP_ARGS(sdata, reconnect),
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TP_STRUCT__entry(
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VIF_ENTRY
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__field(int, reconnect)
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),
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TP_fast_assign(
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VIF_ASSIGN;
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__entry->reconnect = reconnect;
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),
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TP_printk(
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VIF_PR_FMT " reconnect:%d",
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VIF_PR_ARG, __entry->reconnect
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)
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);
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TRACE_EVENT(api_cqm_rssi_notify,
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TP_PROTO(struct ieee80211_sub_if_data *sdata,
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enum nl80211_cqm_rssi_threshold_event rssi_event,
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