static int cfg80211_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *wextfreq, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); int freq, err; switch (wdev->iftype) { case NL80211_IFTYPE_STATION: return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); case NL80211_IFTYPE_ADHOC: return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); case NL80211_IFTYPE_MONITOR: case NL80211_IFTYPE_WDS: case NL80211_IFTYPE_MESH_POINT: freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); if (freq < 0) return freq; if (freq == 0) return -EINVAL; mutex_lock(&rdev->devlist_mtx); wdev_lock(wdev); err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); wdev_unlock(wdev); mutex_unlock(&rdev->devlist_mtx); return err; default: return -EOPNOTSUPP; } }
int cfg80211_ibss_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *wextfreq, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); struct ieee80211_channel *chan = NULL; int err, freq; /* call only for ibss! */ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_ADHOC)) return -EINVAL; if (!rdev->ops->join_ibss) return -EOPNOTSUPP; freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); if (freq < 0) return freq; if (freq) { chan = ieee80211_get_channel(wdev->wiphy, freq); if (!chan) return -EINVAL; if (chan->flags & IEEE80211_CHAN_NO_IBSS || chan->flags & IEEE80211_CHAN_DISABLED) return -EINVAL; } if (wdev->wext.ibss.chandef.chan == chan) return 0; wdev_lock(wdev); err = 0; if (wdev->ssid_len) err = __cfg80211_leave_ibss(rdev, dev, true); wdev_unlock(wdev); if (err) return err; if (chan) { wdev->wext.ibss.chandef.chan = chan; wdev->wext.ibss.chandef.width = NL80211_CHAN_WIDTH_20_NOHT; wdev->wext.ibss.channel_fixed = true; } else { /* cfg80211_ibss_wext_join will pick one if needed */ wdev->wext.ibss.channel_fixed = false; } mutex_lock(&rdev->devlist_mtx); wdev_lock(wdev); err = cfg80211_ibss_wext_join(rdev, wdev); wdev_unlock(wdev); mutex_unlock(&rdev->devlist_mtx); return err; }
static int cfg80211_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *wextfreq, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct cfg80211_chan_def chandef = { .width = NL80211_CHAN_WIDTH_20_NOHT, }; int freq; switch (wdev->iftype) { case NL80211_IFTYPE_STATION: return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra); case NL80211_IFTYPE_ADHOC: return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); case NL80211_IFTYPE_MONITOR: freq = cfg80211_wext_freq(wextfreq); if (freq < 0) return freq; if (freq == 0) return -EINVAL; chandef.center_freq1 = freq; chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); if (!chandef.chan) return -EINVAL; return cfg80211_set_monitor_channel(rdev, &chandef); case NL80211_IFTYPE_MESH_POINT: freq = cfg80211_wext_freq(wextfreq); if (freq < 0) return freq; if (freq == 0) return -EINVAL; chandef.center_freq1 = freq; chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); if (!chandef.chan) return -EINVAL; return cfg80211_set_mesh_channel(rdev, wdev, &chandef); default: return -EOPNOTSUPP; } }
int cfg80211_mgd_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *wextfreq, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy); struct ieee80211_channel *chan = NULL; int err, freq; /* call only for station! */ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return -EINVAL; freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); if (freq < 0) return freq; if (freq) { chan = ieee80211_get_channel(wdev->wiphy, freq); if (!chan) return -EINVAL; if (chan->flags & IEEE80211_CHAN_DISABLED) return -EINVAL; } cfg80211_lock_rdev(rdev); mutex_lock(&rdev->devlist_mtx); wdev_lock(wdev); if (wdev->sme_state != CFG80211_SME_IDLE) { bool event = true; if (wdev->wext.connect.channel == chan) { err = 0; goto out; } /* if SSID set, we'll try right again, avoid event */ if (wdev->wext.connect.ssid_len) event = false; err = __cfg80211_disconnect(rdev, dev, WLAN_REASON_DEAUTH_LEAVING, event); if (err) goto out; } wdev->wext.connect.channel = chan; /* SSID is not set, we just want to switch channel */ if (chan && !wdev->wext.connect.ssid_len) { err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); goto out; } err = cfg80211_mgd_wext_connect(rdev, wdev); out: wdev_unlock(wdev); mutex_unlock(&rdev->devlist_mtx); cfg80211_unlock_rdev(rdev); return err; }
int cfg80211_mgd_wext_siwfreq(struct net_device *dev, struct iw_request_info *info, struct iw_freq *wextfreq, char *extra) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy); struct ieee80211_channel *chan = NULL; int err, freq; /* call only for station! */ if (WARN_ON(wdev->iftype != NL80211_IFTYPE_STATION)) return -EINVAL; freq = cfg80211_wext_freq(wextfreq); if (freq < 0) return freq; if (freq) { chan = ieee80211_get_channel(wdev->wiphy, freq); if (!chan) return -EINVAL; if (chan->flags & IEEE80211_CHAN_DISABLED) return -EINVAL; } wdev_lock(wdev); if (wdev->conn) { bool event = true; if (wdev->wext.connect.channel == chan) { err = 0; goto out; } /* if SSID set, we'll try right again, avoid event */ if (wdev->wext.connect.ssid_len) event = false; err = cfg80211_disconnect(rdev, dev, WLAN_REASON_DEAUTH_LEAVING, event); if (err) goto out; } wdev->wext.connect.channel = chan; /* * SSID is not set, we just want to switch monitor channel, * this is really just backward compatibility, if the SSID * is set then we use the channel to select the BSS to use * to connect to instead. If we were connected on another * channel we disconnected above and reconnect below. */ if (chan && !wdev->wext.connect.ssid_len) { struct cfg80211_chan_def chandef = { .width = NL80211_CHAN_WIDTH_20_NOHT, .center_freq1 = freq, }; chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq); if (chandef.chan) err = cfg80211_set_monitor_channel(rdev, &chandef); else err = -EINVAL; goto out; } err = cfg80211_mgd_wext_connect(rdev, wdev); out: wdev_unlock(wdev); return err; }