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1354 lines
36 KiB
1354 lines
36 KiB
// SPDX-License-Identifier: GPL-2.0 |
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/* |
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* SME code for cfg80211 |
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* both driver SME event handling and the SME implementation |
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* (for nl80211's connect() and wext) |
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* |
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* Copyright 2009 Johannes Berg <[email protected]> |
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* Copyright (C) 2009, 2020 Intel Corporation. All rights reserved. |
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* Copyright 2017 Intel Deutschland GmbH |
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*/ |
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|
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#include <linux/etherdevice.h> |
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#include <linux/if_arp.h> |
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#include <linux/slab.h> |
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#include <linux/workqueue.h> |
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#include <linux/wireless.h> |
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#include <linux/export.h> |
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#include <net/iw_handler.h> |
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#include <net/cfg80211.h> |
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#include <net/rtnetlink.h> |
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#include "nl80211.h" |
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#include "reg.h" |
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#include "rdev-ops.h" |
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|
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/* |
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* Software SME in cfg80211, using auth/assoc/deauth calls to the |
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* driver. This is for implementing nl80211's connect/disconnect |
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* and wireless extensions (if configured.) |
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*/ |
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|
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struct cfg80211_conn { |
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struct cfg80211_connect_params params; |
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/* these are sub-states of the _CONNECTING sme_state */ |
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enum { |
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CFG80211_CONN_SCANNING, |
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CFG80211_CONN_SCAN_AGAIN, |
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CFG80211_CONN_AUTHENTICATE_NEXT, |
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CFG80211_CONN_AUTHENTICATING, |
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CFG80211_CONN_AUTH_FAILED_TIMEOUT, |
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CFG80211_CONN_ASSOCIATE_NEXT, |
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CFG80211_CONN_ASSOCIATING, |
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CFG80211_CONN_ASSOC_FAILED, |
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CFG80211_CONN_ASSOC_FAILED_TIMEOUT, |
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CFG80211_CONN_DEAUTH, |
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CFG80211_CONN_ABANDON, |
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CFG80211_CONN_CONNECTED, |
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} state; |
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u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN]; |
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const u8 *ie; |
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size_t ie_len; |
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bool auto_auth, prev_bssid_valid; |
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}; |
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|
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static void cfg80211_sme_free(struct wireless_dev *wdev) |
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{ |
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if (!wdev->conn) |
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return; |
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|
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kfree(wdev->conn->ie); |
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kfree(wdev->conn); |
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wdev->conn = NULL; |
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} |
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|
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static int cfg80211_conn_scan(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
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struct cfg80211_scan_request *request; |
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int n_channels, err; |
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|
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ASSERT_WDEV_LOCK(wdev); |
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|
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if (rdev->scan_req || rdev->scan_msg) |
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return -EBUSY; |
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|
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if (wdev->conn->params.channel) |
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n_channels = 1; |
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else |
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n_channels = ieee80211_get_num_supported_channels(wdev->wiphy); |
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|
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request = kzalloc(sizeof(*request) + sizeof(request->ssids[0]) + |
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sizeof(request->channels[0]) * n_channels, |
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GFP_KERNEL); |
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if (!request) |
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return -ENOMEM; |
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|
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if (wdev->conn->params.channel) { |
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enum nl80211_band band = wdev->conn->params.channel->band; |
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struct ieee80211_supported_band *sband = |
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wdev->wiphy->bands[band]; |
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|
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if (!sband) { |
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kfree(request); |
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return -EINVAL; |
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} |
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request->channels[0] = wdev->conn->params.channel; |
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request->rates[band] = (1 << sband->n_bitrates) - 1; |
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} else { |
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int i = 0, j; |
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enum nl80211_band band; |
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struct ieee80211_supported_band *bands; |
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struct ieee80211_channel *channel; |
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|
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for (band = 0; band < NUM_NL80211_BANDS; band++) { |
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bands = wdev->wiphy->bands[band]; |
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if (!bands) |
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continue; |
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for (j = 0; j < bands->n_channels; j++) { |
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channel = &bands->channels[j]; |
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if (channel->flags & IEEE80211_CHAN_DISABLED) |
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continue; |
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request->channels[i++] = channel; |
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} |
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request->rates[band] = (1 << bands->n_bitrates) - 1; |
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} |
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n_channels = i; |
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} |
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request->n_channels = n_channels; |
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request->ssids = (void *)&request->channels[n_channels]; |
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request->n_ssids = 1; |
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|
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memcpy(request->ssids[0].ssid, wdev->conn->params.ssid, |
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wdev->conn->params.ssid_len); |
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request->ssids[0].ssid_len = wdev->conn->params.ssid_len; |
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|
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eth_broadcast_addr(request->bssid); |
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|
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request->wdev = wdev; |
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request->wiphy = &rdev->wiphy; |
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request->scan_start = jiffies; |
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|
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rdev->scan_req = request; |
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|
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err = rdev_scan(rdev, request); |
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if (!err) { |
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wdev->conn->state = CFG80211_CONN_SCANNING; |
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nl80211_send_scan_start(rdev, wdev); |
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dev_hold(wdev->netdev); |
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} else { |
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rdev->scan_req = NULL; |
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kfree(request); |
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} |
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return err; |
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} |
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|
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static int cfg80211_conn_do_work(struct wireless_dev *wdev, |
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enum nl80211_timeout_reason *treason) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
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struct cfg80211_connect_params *params; |
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struct cfg80211_assoc_request req = {}; |
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int err; |
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|
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ASSERT_WDEV_LOCK(wdev); |
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|
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if (!wdev->conn) |
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return 0; |
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params = &wdev->conn->params; |
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|
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switch (wdev->conn->state) { |
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case CFG80211_CONN_SCANNING: |
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/* didn't find it during scan ... */ |
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return -ENOENT; |
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case CFG80211_CONN_SCAN_AGAIN: |
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return cfg80211_conn_scan(wdev); |
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case CFG80211_CONN_AUTHENTICATE_NEXT: |
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if (WARN_ON(!rdev->ops->auth)) |
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return -EOPNOTSUPP; |
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wdev->conn->state = CFG80211_CONN_AUTHENTICATING; |
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return cfg80211_mlme_auth(rdev, wdev->netdev, |
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params->channel, params->auth_type, |
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params->bssid, |
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params->ssid, params->ssid_len, |
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NULL, 0, |
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params->key, params->key_len, |
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params->key_idx, NULL, 0); |
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case CFG80211_CONN_AUTH_FAILED_TIMEOUT: |
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*treason = NL80211_TIMEOUT_AUTH; |
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return -ENOTCONN; |
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case CFG80211_CONN_ASSOCIATE_NEXT: |
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if (WARN_ON(!rdev->ops->assoc)) |
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return -EOPNOTSUPP; |
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wdev->conn->state = CFG80211_CONN_ASSOCIATING; |
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if (wdev->conn->prev_bssid_valid) |
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req.prev_bssid = wdev->conn->prev_bssid; |
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req.ie = params->ie; |
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req.ie_len = params->ie_len; |
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req.use_mfp = params->mfp != NL80211_MFP_NO; |
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req.crypto = params->crypto; |
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req.flags = params->flags; |
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req.ht_capa = params->ht_capa; |
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req.ht_capa_mask = params->ht_capa_mask; |
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req.vht_capa = params->vht_capa; |
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req.vht_capa_mask = params->vht_capa_mask; |
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|
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err = cfg80211_mlme_assoc(rdev, wdev->netdev, params->channel, |
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params->bssid, params->ssid, |
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params->ssid_len, &req); |
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if (err) |
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cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
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NULL, 0, |
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WLAN_REASON_DEAUTH_LEAVING, |
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false); |
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return err; |
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case CFG80211_CONN_ASSOC_FAILED_TIMEOUT: |
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*treason = NL80211_TIMEOUT_ASSOC; |
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fallthrough; |
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case CFG80211_CONN_ASSOC_FAILED: |
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cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
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NULL, 0, |
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WLAN_REASON_DEAUTH_LEAVING, false); |
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return -ENOTCONN; |
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case CFG80211_CONN_DEAUTH: |
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cfg80211_mlme_deauth(rdev, wdev->netdev, params->bssid, |
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NULL, 0, |
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WLAN_REASON_DEAUTH_LEAVING, false); |
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fallthrough; |
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case CFG80211_CONN_ABANDON: |
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/* free directly, disconnected event already sent */ |
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cfg80211_sme_free(wdev); |
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return 0; |
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default: |
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return 0; |
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} |
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} |
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|
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void cfg80211_conn_work(struct work_struct *work) |
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{ |
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struct cfg80211_registered_device *rdev = |
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container_of(work, struct cfg80211_registered_device, conn_work); |
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struct wireless_dev *wdev; |
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u8 bssid_buf[ETH_ALEN], *bssid = NULL; |
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enum nl80211_timeout_reason treason; |
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|
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wiphy_lock(&rdev->wiphy); |
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|
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list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
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if (!wdev->netdev) |
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continue; |
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|
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wdev_lock(wdev); |
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if (!netif_running(wdev->netdev)) { |
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wdev_unlock(wdev); |
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continue; |
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} |
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if (!wdev->conn || |
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wdev->conn->state == CFG80211_CONN_CONNECTED) { |
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wdev_unlock(wdev); |
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continue; |
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} |
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if (wdev->conn->params.bssid) { |
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memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN); |
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bssid = bssid_buf; |
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} |
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treason = NL80211_TIMEOUT_UNSPECIFIED; |
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if (cfg80211_conn_do_work(wdev, &treason)) { |
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struct cfg80211_connect_resp_params cr; |
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|
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memset(&cr, 0, sizeof(cr)); |
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cr.status = -1; |
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cr.bssid = bssid; |
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cr.timeout_reason = treason; |
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__cfg80211_connect_result(wdev->netdev, &cr, false); |
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} |
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wdev_unlock(wdev); |
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} |
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|
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wiphy_unlock(&rdev->wiphy); |
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} |
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|
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/* Returned bss is reference counted and must be cleaned up appropriately. */ |
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static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
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struct cfg80211_bss *bss; |
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|
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ASSERT_WDEV_LOCK(wdev); |
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|
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bss = cfg80211_get_bss(wdev->wiphy, wdev->conn->params.channel, |
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wdev->conn->params.bssid, |
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wdev->conn->params.ssid, |
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wdev->conn->params.ssid_len, |
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wdev->conn_bss_type, |
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IEEE80211_PRIVACY(wdev->conn->params.privacy)); |
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if (!bss) |
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return NULL; |
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|
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memcpy(wdev->conn->bssid, bss->bssid, ETH_ALEN); |
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wdev->conn->params.bssid = wdev->conn->bssid; |
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wdev->conn->params.channel = bss->channel; |
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wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
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schedule_work(&rdev->conn_work); |
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|
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return bss; |
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} |
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static void __cfg80211_sme_scan_done(struct net_device *dev) |
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{ |
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struct wireless_dev *wdev = dev->ieee80211_ptr; |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
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struct cfg80211_bss *bss; |
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ASSERT_WDEV_LOCK(wdev); |
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|
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if (!wdev->conn) |
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return; |
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if (wdev->conn->state != CFG80211_CONN_SCANNING && |
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wdev->conn->state != CFG80211_CONN_SCAN_AGAIN) |
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return; |
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bss = cfg80211_get_conn_bss(wdev); |
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if (bss) |
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cfg80211_put_bss(&rdev->wiphy, bss); |
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else |
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schedule_work(&rdev->conn_work); |
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} |
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void cfg80211_sme_scan_done(struct net_device *dev) |
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{ |
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struct wireless_dev *wdev = dev->ieee80211_ptr; |
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|
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wdev_lock(wdev); |
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__cfg80211_sme_scan_done(dev); |
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wdev_unlock(wdev); |
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} |
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void cfg80211_sme_rx_auth(struct wireless_dev *wdev, const u8 *buf, size_t len) |
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{ |
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struct wiphy *wiphy = wdev->wiphy; |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy); |
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struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)buf; |
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u16 status_code = le16_to_cpu(mgmt->u.auth.status_code); |
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|
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ASSERT_WDEV_LOCK(wdev); |
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|
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if (!wdev->conn || wdev->conn->state == CFG80211_CONN_CONNECTED) |
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return; |
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|
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if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && |
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wdev->conn->auto_auth && |
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wdev->conn->params.auth_type != NL80211_AUTHTYPE_NETWORK_EAP) { |
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/* select automatically between only open, shared, leap */ |
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switch (wdev->conn->params.auth_type) { |
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case NL80211_AUTHTYPE_OPEN_SYSTEM: |
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if (wdev->connect_keys) |
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wdev->conn->params.auth_type = |
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NL80211_AUTHTYPE_SHARED_KEY; |
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else |
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wdev->conn->params.auth_type = |
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NL80211_AUTHTYPE_NETWORK_EAP; |
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break; |
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case NL80211_AUTHTYPE_SHARED_KEY: |
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wdev->conn->params.auth_type = |
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NL80211_AUTHTYPE_NETWORK_EAP; |
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break; |
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default: |
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/* huh? */ |
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wdev->conn->params.auth_type = |
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NL80211_AUTHTYPE_OPEN_SYSTEM; |
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break; |
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} |
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wdev->conn->state = CFG80211_CONN_AUTHENTICATE_NEXT; |
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schedule_work(&rdev->conn_work); |
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} else if (status_code != WLAN_STATUS_SUCCESS) { |
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struct cfg80211_connect_resp_params cr; |
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|
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memset(&cr, 0, sizeof(cr)); |
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cr.status = status_code; |
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cr.bssid = mgmt->bssid; |
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cr.timeout_reason = NL80211_TIMEOUT_UNSPECIFIED; |
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__cfg80211_connect_result(wdev->netdev, &cr, false); |
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} else if (wdev->conn->state == CFG80211_CONN_AUTHENTICATING) { |
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wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
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schedule_work(&rdev->conn_work); |
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} |
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} |
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|
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bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
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if (!wdev->conn) |
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return false; |
|
|
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if (status == WLAN_STATUS_SUCCESS) { |
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wdev->conn->state = CFG80211_CONN_CONNECTED; |
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return false; |
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} |
|
|
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if (wdev->conn->prev_bssid_valid) { |
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/* |
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* Some stupid APs don't accept reassoc, so we |
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* need to fall back to trying regular assoc; |
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* return true so no event is sent to userspace. |
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*/ |
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wdev->conn->prev_bssid_valid = false; |
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wdev->conn->state = CFG80211_CONN_ASSOCIATE_NEXT; |
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schedule_work(&rdev->conn_work); |
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return true; |
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} |
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|
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wdev->conn->state = CFG80211_CONN_ASSOC_FAILED; |
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schedule_work(&rdev->conn_work); |
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return false; |
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} |
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|
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void cfg80211_sme_deauth(struct wireless_dev *wdev) |
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{ |
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cfg80211_sme_free(wdev); |
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} |
|
|
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void cfg80211_sme_auth_timeout(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
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if (!wdev->conn) |
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return; |
|
|
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wdev->conn->state = CFG80211_CONN_AUTH_FAILED_TIMEOUT; |
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schedule_work(&rdev->conn_work); |
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} |
|
|
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void cfg80211_sme_disassoc(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
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if (!wdev->conn) |
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return; |
|
|
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wdev->conn->state = CFG80211_CONN_DEAUTH; |
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schedule_work(&rdev->conn_work); |
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} |
|
|
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void cfg80211_sme_assoc_timeout(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
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if (!wdev->conn) |
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return; |
|
|
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wdev->conn->state = CFG80211_CONN_ASSOC_FAILED_TIMEOUT; |
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schedule_work(&rdev->conn_work); |
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} |
|
|
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void cfg80211_sme_abandon_assoc(struct wireless_dev *wdev) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
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if (!wdev->conn) |
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return; |
|
|
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wdev->conn->state = CFG80211_CONN_ABANDON; |
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schedule_work(&rdev->conn_work); |
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} |
|
|
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static int cfg80211_sme_get_conn_ies(struct wireless_dev *wdev, |
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const u8 *ies, size_t ies_len, |
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const u8 **out_ies, size_t *out_ies_len) |
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{ |
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struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
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u8 *buf; |
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size_t offs; |
|
|
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if (!rdev->wiphy.extended_capabilities_len || |
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(ies && cfg80211_find_ie(WLAN_EID_EXT_CAPABILITY, ies, ies_len))) { |
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*out_ies = kmemdup(ies, ies_len, GFP_KERNEL); |
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if (!*out_ies) |
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return -ENOMEM; |
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*out_ies_len = ies_len; |
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return 0; |
|
} |
|
|
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buf = kmalloc(ies_len + rdev->wiphy.extended_capabilities_len + 2, |
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GFP_KERNEL); |
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if (!buf) |
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return -ENOMEM; |
|
|
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if (ies_len) { |
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static const u8 before_extcapa[] = { |
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/* not listing IEs expected to be created by driver */ |
|
WLAN_EID_RSN, |
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WLAN_EID_QOS_CAPA, |
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WLAN_EID_RRM_ENABLED_CAPABILITIES, |
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WLAN_EID_MOBILITY_DOMAIN, |
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WLAN_EID_SUPPORTED_REGULATORY_CLASSES, |
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WLAN_EID_BSS_COEX_2040, |
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}; |
|
|
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offs = ieee80211_ie_split(ies, ies_len, before_extcapa, |
|
ARRAY_SIZE(before_extcapa), 0); |
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memcpy(buf, ies, offs); |
|
/* leave a whole for extended capabilities IE */ |
|
memcpy(buf + offs + rdev->wiphy.extended_capabilities_len + 2, |
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ies + offs, ies_len - offs); |
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} else { |
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offs = 0; |
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} |
|
|
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/* place extended capabilities IE (with only driver capabilities) */ |
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buf[offs] = WLAN_EID_EXT_CAPABILITY; |
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buf[offs + 1] = rdev->wiphy.extended_capabilities_len; |
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memcpy(buf + offs + 2, |
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rdev->wiphy.extended_capabilities, |
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rdev->wiphy.extended_capabilities_len); |
|
|
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*out_ies = buf; |
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*out_ies_len = ies_len + rdev->wiphy.extended_capabilities_len + 2; |
|
|
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return 0; |
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} |
|
|
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static int cfg80211_sme_connect(struct wireless_dev *wdev, |
|
struct cfg80211_connect_params *connect, |
|
const u8 *prev_bssid) |
|
{ |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
struct cfg80211_bss *bss; |
|
int err; |
|
|
|
if (!rdev->ops->auth || !rdev->ops->assoc) |
|
return -EOPNOTSUPP; |
|
|
|
if (wdev->current_bss) { |
|
cfg80211_unhold_bss(wdev->current_bss); |
|
cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
|
wdev->current_bss = NULL; |
|
|
|
cfg80211_sme_free(wdev); |
|
} |
|
|
|
if (wdev->conn) |
|
return -EINPROGRESS; |
|
|
|
wdev->conn = kzalloc(sizeof(*wdev->conn), GFP_KERNEL); |
|
if (!wdev->conn) |
|
return -ENOMEM; |
|
|
|
/* |
|
* Copy all parameters, and treat explicitly IEs, BSSID, SSID. |
|
*/ |
|
memcpy(&wdev->conn->params, connect, sizeof(*connect)); |
|
if (connect->bssid) { |
|
wdev->conn->params.bssid = wdev->conn->bssid; |
|
memcpy(wdev->conn->bssid, connect->bssid, ETH_ALEN); |
|
} |
|
|
|
if (cfg80211_sme_get_conn_ies(wdev, connect->ie, connect->ie_len, |
|
&wdev->conn->ie, |
|
&wdev->conn->params.ie_len)) { |
|
kfree(wdev->conn); |
|
wdev->conn = NULL; |
|
return -ENOMEM; |
|
} |
|
wdev->conn->params.ie = wdev->conn->ie; |
|
|
|
if (connect->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { |
|
wdev->conn->auto_auth = true; |
|
/* start with open system ... should mostly work */ |
|
wdev->conn->params.auth_type = |
|
NL80211_AUTHTYPE_OPEN_SYSTEM; |
|
} else { |
|
wdev->conn->auto_auth = false; |
|
} |
|
|
|
wdev->conn->params.ssid = wdev->ssid; |
|
wdev->conn->params.ssid_len = wdev->ssid_len; |
|
|
|
/* see if we have the bss already */ |
|
bss = cfg80211_get_conn_bss(wdev); |
|
|
|
if (prev_bssid) { |
|
memcpy(wdev->conn->prev_bssid, prev_bssid, ETH_ALEN); |
|
wdev->conn->prev_bssid_valid = true; |
|
} |
|
|
|
/* we're good if we have a matching bss struct */ |
|
if (bss) { |
|
enum nl80211_timeout_reason treason; |
|
|
|
err = cfg80211_conn_do_work(wdev, &treason); |
|
cfg80211_put_bss(wdev->wiphy, bss); |
|
} else { |
|
/* otherwise we'll need to scan for the AP first */ |
|
err = cfg80211_conn_scan(wdev); |
|
|
|
/* |
|
* If we can't scan right now, then we need to scan again |
|
* after the current scan finished, since the parameters |
|
* changed (unless we find a good AP anyway). |
|
*/ |
|
if (err == -EBUSY) { |
|
err = 0; |
|
wdev->conn->state = CFG80211_CONN_SCAN_AGAIN; |
|
} |
|
} |
|
|
|
if (err) |
|
cfg80211_sme_free(wdev); |
|
|
|
return err; |
|
} |
|
|
|
static int cfg80211_sme_disconnect(struct wireless_dev *wdev, u16 reason) |
|
{ |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
int err; |
|
|
|
if (!wdev->conn) |
|
return 0; |
|
|
|
if (!rdev->ops->deauth) |
|
return -EOPNOTSUPP; |
|
|
|
if (wdev->conn->state == CFG80211_CONN_SCANNING || |
|
wdev->conn->state == CFG80211_CONN_SCAN_AGAIN) { |
|
err = 0; |
|
goto out; |
|
} |
|
|
|
/* wdev->conn->params.bssid must be set if > SCANNING */ |
|
err = cfg80211_mlme_deauth(rdev, wdev->netdev, |
|
wdev->conn->params.bssid, |
|
NULL, 0, reason, false); |
|
out: |
|
cfg80211_sme_free(wdev); |
|
return err; |
|
} |
|
|
|
/* |
|
* code shared for in-device and software SME |
|
*/ |
|
|
|
static bool cfg80211_is_all_idle(void) |
|
{ |
|
struct cfg80211_registered_device *rdev; |
|
struct wireless_dev *wdev; |
|
bool is_all_idle = true; |
|
|
|
/* |
|
* All devices must be idle as otherwise if you are actively |
|
* scanning some new beacon hints could be learned and would |
|
* count as new regulatory hints. |
|
* Also if there is any other active beaconing interface we |
|
* need not issue a disconnect hint and reset any info such |
|
* as chan dfs state, etc. |
|
*/ |
|
list_for_each_entry(rdev, &cfg80211_rdev_list, list) { |
|
list_for_each_entry(wdev, &rdev->wiphy.wdev_list, list) { |
|
wdev_lock(wdev); |
|
if (wdev->conn || wdev->current_bss || |
|
cfg80211_beaconing_iface_active(wdev)) |
|
is_all_idle = false; |
|
wdev_unlock(wdev); |
|
} |
|
} |
|
|
|
return is_all_idle; |
|
} |
|
|
|
static void disconnect_work(struct work_struct *work) |
|
{ |
|
rtnl_lock(); |
|
if (cfg80211_is_all_idle()) |
|
regulatory_hint_disconnect(); |
|
rtnl_unlock(); |
|
} |
|
|
|
DECLARE_WORK(cfg80211_disconnect_work, disconnect_work); |
|
|
|
|
|
/* |
|
* API calls for drivers implementing connect/disconnect and |
|
* SME event handling |
|
*/ |
|
|
|
/* This method must consume bss one way or another */ |
|
void __cfg80211_connect_result(struct net_device *dev, |
|
struct cfg80211_connect_resp_params *cr, |
|
bool wextev) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
const u8 *country_ie; |
|
#ifdef CONFIG_CFG80211_WEXT |
|
union iwreq_data wrqu; |
|
#endif |
|
|
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) { |
|
cfg80211_put_bss(wdev->wiphy, cr->bss); |
|
return; |
|
} |
|
|
|
wdev->unprot_beacon_reported = 0; |
|
nl80211_send_connect_result(wiphy_to_rdev(wdev->wiphy), dev, cr, |
|
GFP_KERNEL); |
|
|
|
#ifdef CONFIG_CFG80211_WEXT |
|
if (wextev) { |
|
if (cr->req_ie && cr->status == WLAN_STATUS_SUCCESS) { |
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.data.length = cr->req_ie_len; |
|
wireless_send_event(dev, IWEVASSOCREQIE, &wrqu, |
|
cr->req_ie); |
|
} |
|
|
|
if (cr->resp_ie && cr->status == WLAN_STATUS_SUCCESS) { |
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.data.length = cr->resp_ie_len; |
|
wireless_send_event(dev, IWEVASSOCRESPIE, &wrqu, |
|
cr->resp_ie); |
|
} |
|
|
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
|
if (cr->bssid && cr->status == WLAN_STATUS_SUCCESS) { |
|
memcpy(wrqu.ap_addr.sa_data, cr->bssid, ETH_ALEN); |
|
memcpy(wdev->wext.prev_bssid, cr->bssid, ETH_ALEN); |
|
wdev->wext.prev_bssid_valid = true; |
|
} |
|
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
|
} |
|
#endif |
|
|
|
if (!cr->bss && (cr->status == WLAN_STATUS_SUCCESS)) { |
|
WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect); |
|
cr->bss = cfg80211_get_bss(wdev->wiphy, NULL, cr->bssid, |
|
wdev->ssid, wdev->ssid_len, |
|
wdev->conn_bss_type, |
|
IEEE80211_PRIVACY_ANY); |
|
if (cr->bss) |
|
cfg80211_hold_bss(bss_from_pub(cr->bss)); |
|
} |
|
|
|
if (wdev->current_bss) { |
|
cfg80211_unhold_bss(wdev->current_bss); |
|
cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
|
wdev->current_bss = NULL; |
|
} |
|
|
|
if (cr->status != WLAN_STATUS_SUCCESS) { |
|
kfree_sensitive(wdev->connect_keys); |
|
wdev->connect_keys = NULL; |
|
wdev->ssid_len = 0; |
|
wdev->conn_owner_nlportid = 0; |
|
if (cr->bss) { |
|
cfg80211_unhold_bss(bss_from_pub(cr->bss)); |
|
cfg80211_put_bss(wdev->wiphy, cr->bss); |
|
} |
|
cfg80211_sme_free(wdev); |
|
return; |
|
} |
|
|
|
if (WARN_ON(!cr->bss)) |
|
return; |
|
|
|
wdev->current_bss = bss_from_pub(cr->bss); |
|
|
|
if (!(wdev->wiphy->flags & WIPHY_FLAG_HAS_STATIC_WEP)) |
|
cfg80211_upload_connect_keys(wdev); |
|
|
|
rcu_read_lock(); |
|
country_ie = ieee80211_bss_get_ie(cr->bss, WLAN_EID_COUNTRY); |
|
if (!country_ie) { |
|
rcu_read_unlock(); |
|
return; |
|
} |
|
|
|
country_ie = kmemdup(country_ie, 2 + country_ie[1], GFP_ATOMIC); |
|
rcu_read_unlock(); |
|
|
|
if (!country_ie) |
|
return; |
|
|
|
/* |
|
* ieee80211_bss_get_ie() ensures we can access: |
|
* - country_ie + 2, the start of the country ie data, and |
|
* - and country_ie[1] which is the IE length |
|
*/ |
|
regulatory_hint_country_ie(wdev->wiphy, cr->bss->channel->band, |
|
country_ie + 2, country_ie[1]); |
|
kfree(country_ie); |
|
} |
|
|
|
/* Consumes bss object one way or another */ |
|
void cfg80211_connect_done(struct net_device *dev, |
|
struct cfg80211_connect_resp_params *params, |
|
gfp_t gfp) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
struct cfg80211_event *ev; |
|
unsigned long flags; |
|
u8 *next; |
|
|
|
if (params->bss) { |
|
struct cfg80211_internal_bss *ibss = bss_from_pub(params->bss); |
|
|
|
if (list_empty(&ibss->list)) { |
|
struct cfg80211_bss *found = NULL, *tmp = params->bss; |
|
|
|
found = cfg80211_get_bss(wdev->wiphy, NULL, |
|
params->bss->bssid, |
|
wdev->ssid, wdev->ssid_len, |
|
wdev->conn_bss_type, |
|
IEEE80211_PRIVACY_ANY); |
|
if (found) { |
|
/* The same BSS is already updated so use it |
|
* instead, as it has latest info. |
|
*/ |
|
params->bss = found; |
|
} else { |
|
/* Update with BSS provided by driver, it will |
|
* be freshly added and ref cnted, we can free |
|
* the old one. |
|
* |
|
* signal_valid can be false, as we are not |
|
* expecting the BSS to be found. |
|
* |
|
* keep the old timestamp to avoid confusion |
|
*/ |
|
cfg80211_bss_update(rdev, ibss, false, |
|
ibss->ts); |
|
} |
|
|
|
cfg80211_put_bss(wdev->wiphy, tmp); |
|
} |
|
} |
|
|
|
ev = kzalloc(sizeof(*ev) + (params->bssid ? ETH_ALEN : 0) + |
|
params->req_ie_len + params->resp_ie_len + |
|
params->fils.kek_len + params->fils.pmk_len + |
|
(params->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp); |
|
if (!ev) { |
|
cfg80211_put_bss(wdev->wiphy, params->bss); |
|
return; |
|
} |
|
|
|
ev->type = EVENT_CONNECT_RESULT; |
|
next = ((u8 *)ev) + sizeof(*ev); |
|
if (params->bssid) { |
|
ev->cr.bssid = next; |
|
memcpy((void *)ev->cr.bssid, params->bssid, ETH_ALEN); |
|
next += ETH_ALEN; |
|
} |
|
if (params->req_ie_len) { |
|
ev->cr.req_ie = next; |
|
ev->cr.req_ie_len = params->req_ie_len; |
|
memcpy((void *)ev->cr.req_ie, params->req_ie, |
|
params->req_ie_len); |
|
next += params->req_ie_len; |
|
} |
|
if (params->resp_ie_len) { |
|
ev->cr.resp_ie = next; |
|
ev->cr.resp_ie_len = params->resp_ie_len; |
|
memcpy((void *)ev->cr.resp_ie, params->resp_ie, |
|
params->resp_ie_len); |
|
next += params->resp_ie_len; |
|
} |
|
if (params->fils.kek_len) { |
|
ev->cr.fils.kek = next; |
|
ev->cr.fils.kek_len = params->fils.kek_len; |
|
memcpy((void *)ev->cr.fils.kek, params->fils.kek, |
|
params->fils.kek_len); |
|
next += params->fils.kek_len; |
|
} |
|
if (params->fils.pmk_len) { |
|
ev->cr.fils.pmk = next; |
|
ev->cr.fils.pmk_len = params->fils.pmk_len; |
|
memcpy((void *)ev->cr.fils.pmk, params->fils.pmk, |
|
params->fils.pmk_len); |
|
next += params->fils.pmk_len; |
|
} |
|
if (params->fils.pmkid) { |
|
ev->cr.fils.pmkid = next; |
|
memcpy((void *)ev->cr.fils.pmkid, params->fils.pmkid, |
|
WLAN_PMKID_LEN); |
|
next += WLAN_PMKID_LEN; |
|
} |
|
ev->cr.fils.update_erp_next_seq_num = params->fils.update_erp_next_seq_num; |
|
if (params->fils.update_erp_next_seq_num) |
|
ev->cr.fils.erp_next_seq_num = params->fils.erp_next_seq_num; |
|
if (params->bss) |
|
cfg80211_hold_bss(bss_from_pub(params->bss)); |
|
ev->cr.bss = params->bss; |
|
ev->cr.status = params->status; |
|
ev->cr.timeout_reason = params->timeout_reason; |
|
|
|
spin_lock_irqsave(&wdev->event_lock, flags); |
|
list_add_tail(&ev->list, &wdev->event_list); |
|
spin_unlock_irqrestore(&wdev->event_lock, flags); |
|
queue_work(cfg80211_wq, &rdev->event_work); |
|
} |
|
EXPORT_SYMBOL(cfg80211_connect_done); |
|
|
|
/* Consumes bss object one way or another */ |
|
void __cfg80211_roamed(struct wireless_dev *wdev, |
|
struct cfg80211_roam_info *info) |
|
{ |
|
#ifdef CONFIG_CFG80211_WEXT |
|
union iwreq_data wrqu; |
|
#endif |
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) |
|
goto out; |
|
|
|
if (WARN_ON(!wdev->current_bss)) |
|
goto out; |
|
|
|
cfg80211_unhold_bss(wdev->current_bss); |
|
cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
|
wdev->current_bss = NULL; |
|
|
|
if (WARN_ON(!info->bss)) |
|
return; |
|
|
|
cfg80211_hold_bss(bss_from_pub(info->bss)); |
|
wdev->current_bss = bss_from_pub(info->bss); |
|
|
|
wdev->unprot_beacon_reported = 0; |
|
nl80211_send_roamed(wiphy_to_rdev(wdev->wiphy), |
|
wdev->netdev, info, GFP_KERNEL); |
|
|
|
#ifdef CONFIG_CFG80211_WEXT |
|
if (info->req_ie) { |
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.data.length = info->req_ie_len; |
|
wireless_send_event(wdev->netdev, IWEVASSOCREQIE, |
|
&wrqu, info->req_ie); |
|
} |
|
|
|
if (info->resp_ie) { |
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.data.length = info->resp_ie_len; |
|
wireless_send_event(wdev->netdev, IWEVASSOCRESPIE, |
|
&wrqu, info->resp_ie); |
|
} |
|
|
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
|
memcpy(wrqu.ap_addr.sa_data, info->bss->bssid, ETH_ALEN); |
|
memcpy(wdev->wext.prev_bssid, info->bss->bssid, ETH_ALEN); |
|
wdev->wext.prev_bssid_valid = true; |
|
wireless_send_event(wdev->netdev, SIOCGIWAP, &wrqu, NULL); |
|
#endif |
|
|
|
return; |
|
out: |
|
cfg80211_put_bss(wdev->wiphy, info->bss); |
|
} |
|
|
|
/* Consumes info->bss object one way or another */ |
|
void cfg80211_roamed(struct net_device *dev, struct cfg80211_roam_info *info, |
|
gfp_t gfp) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
struct cfg80211_event *ev; |
|
unsigned long flags; |
|
u8 *next; |
|
|
|
if (!info->bss) { |
|
info->bss = cfg80211_get_bss(wdev->wiphy, info->channel, |
|
info->bssid, wdev->ssid, |
|
wdev->ssid_len, |
|
wdev->conn_bss_type, |
|
IEEE80211_PRIVACY_ANY); |
|
} |
|
|
|
if (WARN_ON(!info->bss)) |
|
return; |
|
|
|
ev = kzalloc(sizeof(*ev) + info->req_ie_len + info->resp_ie_len + |
|
info->fils.kek_len + info->fils.pmk_len + |
|
(info->fils.pmkid ? WLAN_PMKID_LEN : 0), gfp); |
|
if (!ev) { |
|
cfg80211_put_bss(wdev->wiphy, info->bss); |
|
return; |
|
} |
|
|
|
ev->type = EVENT_ROAMED; |
|
next = ((u8 *)ev) + sizeof(*ev); |
|
if (info->req_ie_len) { |
|
ev->rm.req_ie = next; |
|
ev->rm.req_ie_len = info->req_ie_len; |
|
memcpy((void *)ev->rm.req_ie, info->req_ie, info->req_ie_len); |
|
next += info->req_ie_len; |
|
} |
|
if (info->resp_ie_len) { |
|
ev->rm.resp_ie = next; |
|
ev->rm.resp_ie_len = info->resp_ie_len; |
|
memcpy((void *)ev->rm.resp_ie, info->resp_ie, |
|
info->resp_ie_len); |
|
next += info->resp_ie_len; |
|
} |
|
if (info->fils.kek_len) { |
|
ev->rm.fils.kek = next; |
|
ev->rm.fils.kek_len = info->fils.kek_len; |
|
memcpy((void *)ev->rm.fils.kek, info->fils.kek, |
|
info->fils.kek_len); |
|
next += info->fils.kek_len; |
|
} |
|
if (info->fils.pmk_len) { |
|
ev->rm.fils.pmk = next; |
|
ev->rm.fils.pmk_len = info->fils.pmk_len; |
|
memcpy((void *)ev->rm.fils.pmk, info->fils.pmk, |
|
info->fils.pmk_len); |
|
next += info->fils.pmk_len; |
|
} |
|
if (info->fils.pmkid) { |
|
ev->rm.fils.pmkid = next; |
|
memcpy((void *)ev->rm.fils.pmkid, info->fils.pmkid, |
|
WLAN_PMKID_LEN); |
|
next += WLAN_PMKID_LEN; |
|
} |
|
ev->rm.fils.update_erp_next_seq_num = info->fils.update_erp_next_seq_num; |
|
if (info->fils.update_erp_next_seq_num) |
|
ev->rm.fils.erp_next_seq_num = info->fils.erp_next_seq_num; |
|
ev->rm.bss = info->bss; |
|
|
|
spin_lock_irqsave(&wdev->event_lock, flags); |
|
list_add_tail(&ev->list, &wdev->event_list); |
|
spin_unlock_irqrestore(&wdev->event_lock, flags); |
|
queue_work(cfg80211_wq, &rdev->event_work); |
|
} |
|
EXPORT_SYMBOL(cfg80211_roamed); |
|
|
|
void __cfg80211_port_authorized(struct wireless_dev *wdev, const u8 *bssid) |
|
{ |
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) |
|
return; |
|
|
|
if (WARN_ON(!wdev->current_bss) || |
|
WARN_ON(!ether_addr_equal(wdev->current_bss->pub.bssid, bssid))) |
|
return; |
|
|
|
nl80211_send_port_authorized(wiphy_to_rdev(wdev->wiphy), wdev->netdev, |
|
bssid); |
|
} |
|
|
|
void cfg80211_port_authorized(struct net_device *dev, const u8 *bssid, |
|
gfp_t gfp) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
struct cfg80211_event *ev; |
|
unsigned long flags; |
|
|
|
if (WARN_ON(!bssid)) |
|
return; |
|
|
|
ev = kzalloc(sizeof(*ev), gfp); |
|
if (!ev) |
|
return; |
|
|
|
ev->type = EVENT_PORT_AUTHORIZED; |
|
memcpy(ev->pa.bssid, bssid, ETH_ALEN); |
|
|
|
/* |
|
* Use the wdev event list so that if there are pending |
|
* connected/roamed events, they will be reported first. |
|
*/ |
|
spin_lock_irqsave(&wdev->event_lock, flags); |
|
list_add_tail(&ev->list, &wdev->event_list); |
|
spin_unlock_irqrestore(&wdev->event_lock, flags); |
|
queue_work(cfg80211_wq, &rdev->event_work); |
|
} |
|
EXPORT_SYMBOL(cfg80211_port_authorized); |
|
|
|
void __cfg80211_disconnected(struct net_device *dev, const u8 *ie, |
|
size_t ie_len, u16 reason, bool from_ap) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
int i; |
|
#ifdef CONFIG_CFG80211_WEXT |
|
union iwreq_data wrqu; |
|
#endif |
|
|
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION && |
|
wdev->iftype != NL80211_IFTYPE_P2P_CLIENT)) |
|
return; |
|
|
|
if (wdev->current_bss) { |
|
cfg80211_unhold_bss(wdev->current_bss); |
|
cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub); |
|
} |
|
|
|
wdev->current_bss = NULL; |
|
wdev->ssid_len = 0; |
|
wdev->conn_owner_nlportid = 0; |
|
kfree_sensitive(wdev->connect_keys); |
|
wdev->connect_keys = NULL; |
|
|
|
nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap); |
|
|
|
/* stop critical protocol if supported */ |
|
if (rdev->ops->crit_proto_stop && rdev->crit_proto_nlportid) { |
|
rdev->crit_proto_nlportid = 0; |
|
rdev_crit_proto_stop(rdev, wdev); |
|
} |
|
|
|
/* |
|
* Delete all the keys ... pairwise keys can't really |
|
* exist any more anyway, but default keys might. |
|
*/ |
|
if (rdev->ops->del_key) { |
|
int max_key_idx = 5; |
|
|
|
if (wiphy_ext_feature_isset( |
|
wdev->wiphy, |
|
NL80211_EXT_FEATURE_BEACON_PROTECTION) || |
|
wiphy_ext_feature_isset( |
|
wdev->wiphy, |
|
NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT)) |
|
max_key_idx = 7; |
|
for (i = 0; i <= max_key_idx; i++) |
|
rdev_del_key(rdev, dev, i, false, NULL); |
|
} |
|
|
|
rdev_set_qos_map(rdev, dev, NULL); |
|
|
|
#ifdef CONFIG_CFG80211_WEXT |
|
memset(&wrqu, 0, sizeof(wrqu)); |
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER; |
|
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL); |
|
wdev->wext.connect.ssid_len = 0; |
|
#endif |
|
|
|
schedule_work(&cfg80211_disconnect_work); |
|
} |
|
|
|
void cfg80211_disconnected(struct net_device *dev, u16 reason, |
|
const u8 *ie, size_t ie_len, |
|
bool locally_generated, gfp_t gfp) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
struct cfg80211_event *ev; |
|
unsigned long flags; |
|
|
|
ev = kzalloc(sizeof(*ev) + ie_len, gfp); |
|
if (!ev) |
|
return; |
|
|
|
ev->type = EVENT_DISCONNECTED; |
|
ev->dc.ie = ((u8 *)ev) + sizeof(*ev); |
|
ev->dc.ie_len = ie_len; |
|
memcpy((void *)ev->dc.ie, ie, ie_len); |
|
ev->dc.reason = reason; |
|
ev->dc.locally_generated = locally_generated; |
|
|
|
spin_lock_irqsave(&wdev->event_lock, flags); |
|
list_add_tail(&ev->list, &wdev->event_list); |
|
spin_unlock_irqrestore(&wdev->event_lock, flags); |
|
queue_work(cfg80211_wq, &rdev->event_work); |
|
} |
|
EXPORT_SYMBOL(cfg80211_disconnected); |
|
|
|
/* |
|
* API calls for nl80211/wext compatibility code |
|
*/ |
|
int cfg80211_connect(struct cfg80211_registered_device *rdev, |
|
struct net_device *dev, |
|
struct cfg80211_connect_params *connect, |
|
struct cfg80211_cached_keys *connkeys, |
|
const u8 *prev_bssid) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
int err; |
|
|
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
/* |
|
* If we have an ssid_len, we're trying to connect or are |
|
* already connected, so reject a new SSID unless it's the |
|
* same (which is the case for re-association.) |
|
*/ |
|
if (wdev->ssid_len && |
|
(wdev->ssid_len != connect->ssid_len || |
|
memcmp(wdev->ssid, connect->ssid, wdev->ssid_len))) |
|
return -EALREADY; |
|
|
|
/* |
|
* If connected, reject (re-)association unless prev_bssid |
|
* matches the current BSSID. |
|
*/ |
|
if (wdev->current_bss) { |
|
if (!prev_bssid) |
|
return -EALREADY; |
|
if (!ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid)) |
|
return -ENOTCONN; |
|
} |
|
|
|
/* |
|
* Reject if we're in the process of connecting with WEP, |
|
* this case isn't very interesting and trying to handle |
|
* it would make the code much more complex. |
|
*/ |
|
if (wdev->connect_keys) |
|
return -EINPROGRESS; |
|
|
|
cfg80211_oper_and_ht_capa(&connect->ht_capa_mask, |
|
rdev->wiphy.ht_capa_mod_mask); |
|
cfg80211_oper_and_vht_capa(&connect->vht_capa_mask, |
|
rdev->wiphy.vht_capa_mod_mask); |
|
|
|
if (connkeys && connkeys->def >= 0) { |
|
int idx; |
|
u32 cipher; |
|
|
|
idx = connkeys->def; |
|
cipher = connkeys->params[idx].cipher; |
|
/* If given a WEP key we may need it for shared key auth */ |
|
if (cipher == WLAN_CIPHER_SUITE_WEP40 || |
|
cipher == WLAN_CIPHER_SUITE_WEP104) { |
|
connect->key_idx = idx; |
|
connect->key = connkeys->params[idx].key; |
|
connect->key_len = connkeys->params[idx].key_len; |
|
|
|
/* |
|
* If ciphers are not set (e.g. when going through |
|
* iwconfig), we have to set them appropriately here. |
|
*/ |
|
if (connect->crypto.cipher_group == 0) |
|
connect->crypto.cipher_group = cipher; |
|
|
|
if (connect->crypto.n_ciphers_pairwise == 0) { |
|
connect->crypto.n_ciphers_pairwise = 1; |
|
connect->crypto.ciphers_pairwise[0] = cipher; |
|
} |
|
} |
|
|
|
connect->crypto.wep_keys = connkeys->params; |
|
connect->crypto.wep_tx_key = connkeys->def; |
|
} else { |
|
if (WARN_ON(connkeys)) |
|
return -EINVAL; |
|
} |
|
|
|
wdev->connect_keys = connkeys; |
|
memcpy(wdev->ssid, connect->ssid, connect->ssid_len); |
|
wdev->ssid_len = connect->ssid_len; |
|
|
|
wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS : |
|
IEEE80211_BSS_TYPE_ESS; |
|
|
|
if (!rdev->ops->connect) |
|
err = cfg80211_sme_connect(wdev, connect, prev_bssid); |
|
else |
|
err = rdev_connect(rdev, dev, connect); |
|
|
|
if (err) { |
|
wdev->connect_keys = NULL; |
|
/* |
|
* This could be reassoc getting refused, don't clear |
|
* ssid_len in that case. |
|
*/ |
|
if (!wdev->current_bss) |
|
wdev->ssid_len = 0; |
|
return err; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int cfg80211_disconnect(struct cfg80211_registered_device *rdev, |
|
struct net_device *dev, u16 reason, bool wextev) |
|
{ |
|
struct wireless_dev *wdev = dev->ieee80211_ptr; |
|
int err = 0; |
|
|
|
ASSERT_WDEV_LOCK(wdev); |
|
|
|
kfree_sensitive(wdev->connect_keys); |
|
wdev->connect_keys = NULL; |
|
|
|
wdev->conn_owner_nlportid = 0; |
|
|
|
if (wdev->conn) |
|
err = cfg80211_sme_disconnect(wdev, reason); |
|
else if (!rdev->ops->disconnect) |
|
cfg80211_mlme_down(rdev, dev); |
|
else if (wdev->ssid_len) |
|
err = rdev_disconnect(rdev, dev, reason); |
|
|
|
/* |
|
* Clear ssid_len unless we actually were fully connected, |
|
* in which case cfg80211_disconnected() will take care of |
|
* this later. |
|
*/ |
|
if (!wdev->current_bss) |
|
wdev->ssid_len = 0; |
|
|
|
return err; |
|
} |
|
|
|
/* |
|
* Used to clean up after the connection / connection attempt owner socket |
|
* disconnects |
|
*/ |
|
void cfg80211_autodisconnect_wk(struct work_struct *work) |
|
{ |
|
struct wireless_dev *wdev = |
|
container_of(work, struct wireless_dev, disconnect_wk); |
|
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); |
|
|
|
wdev_lock(wdev); |
|
|
|
if (wdev->conn_owner_nlportid) { |
|
switch (wdev->iftype) { |
|
case NL80211_IFTYPE_ADHOC: |
|
__cfg80211_leave_ibss(rdev, wdev->netdev, false); |
|
break; |
|
case NL80211_IFTYPE_AP: |
|
case NL80211_IFTYPE_P2P_GO: |
|
__cfg80211_stop_ap(rdev, wdev->netdev, false); |
|
break; |
|
case NL80211_IFTYPE_MESH_POINT: |
|
__cfg80211_leave_mesh(rdev, wdev->netdev); |
|
break; |
|
case NL80211_IFTYPE_STATION: |
|
case NL80211_IFTYPE_P2P_CLIENT: |
|
/* |
|
* Use disconnect_bssid if still connecting and |
|
* ops->disconnect not implemented. Otherwise we can |
|
* use cfg80211_disconnect. |
|
*/ |
|
if (rdev->ops->disconnect || wdev->current_bss) |
|
cfg80211_disconnect(rdev, wdev->netdev, |
|
WLAN_REASON_DEAUTH_LEAVING, |
|
true); |
|
else |
|
cfg80211_mlme_deauth(rdev, wdev->netdev, |
|
wdev->disconnect_bssid, |
|
NULL, 0, |
|
WLAN_REASON_DEAUTH_LEAVING, |
|
false); |
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
|
wdev_unlock(wdev); |
|
}
|
|
|