static int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_ibss_params *params, struct cfg80211_cached_keys *connkeys) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err; ASSERT_WDEV_LOCK(wdev); if (wdev->ssid_len) return -EALREADY; if (!params->basic_rates) { /* * If no rates were explicitly configured, * use the mandatory rate set for 11b or * 11a for maximum compatibility. */ struct ieee80211_supported_band *sband = rdev->wiphy.bands[params->chandef.chan->band]; int j; u32 flag = params->chandef.chan->band == NL80211_BAND_5GHZ ? IEEE80211_RATE_MANDATORY_A : IEEE80211_RATE_MANDATORY_B; for (j = 0; j < sband->n_bitrates; j++) { if (sband->bitrates[j].flags & flag) params->basic_rates |= BIT(j); } } if (WARN_ON(connkeys && connkeys->def < 0)) return -EINVAL; if (WARN_ON(wdev->connect_keys)) kzfree(wdev->connect_keys); wdev->connect_keys = connkeys; wdev->ibss_fixed = params->channel_fixed; wdev->ibss_dfs_possible = params->userspace_handles_dfs; wdev->chandef = params->chandef; #ifdef CONFIG_CFG80211_WEXT wdev->wext.ibss.chandef = params->chandef; #endif err = rdev_join_ibss(rdev, dev, params); if (err) { wdev->connect_keys = NULL; return err; } memcpy(wdev->ssid, params->ssid, params->ssid_len); wdev->ssid_len = params->ssid_len; return 0; }
int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_ibss_params *params, struct cfg80211_cached_keys *connkeys) { struct wireless_dev *wdev = dev->ieee80211_ptr; int err; ASSERT_WDEV_LOCK(wdev); if (wdev->ssid_len) return -EALREADY; if (!params->basic_rates) { /* * If no rates were explicitly configured, * use the mandatory rate set for 11b or * 11a for maximum compatibility. */ struct ieee80211_supported_band *sband = rdev->wiphy.bands[params->chandef.chan->band]; int j; u32 flag = params->chandef.chan->band == IEEE80211_BAND_5GHZ ? IEEE80211_RATE_MANDATORY_A : IEEE80211_RATE_MANDATORY_B; for (j = 0; j < sband->n_bitrates; j++) { if (sband->bitrates[j].flags & flag) params->basic_rates |= BIT(j); } } if (WARN_ON(wdev->connect_keys)) kfree(wdev->connect_keys); wdev->connect_keys = connkeys; wdev->ibss_fixed = params->channel_fixed; #ifdef CONFIG_CFG80211_WEXT wdev->wext.ibss.chandef = params->chandef; #endif wdev->sme_state = CFG80211_SME_CONNECTING; err = cfg80211_can_use_chan(rdev, wdev, params->chandef.chan, params->channel_fixed ? CHAN_MODE_SHARED : CHAN_MODE_EXCLUSIVE); if (err) { wdev->connect_keys = NULL; return err; } err = rdev_join_ibss(rdev, dev, params); if (err) { wdev->connect_keys = NULL; wdev->sme_state = CFG80211_SME_IDLE; return err; } memcpy(wdev->ssid, params->ssid, params->ssid_len); wdev->ssid_len = params->ssid_len; return 0; }
int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev, struct net_device *dev, struct cfg80211_ibss_params *params, struct cfg80211_cached_keys *connkeys) { struct wireless_dev *wdev = dev->ieee80211_ptr; struct ieee80211_channel *check_chan; u8 radar_detect_width = 0; int err; ASSERT_WDEV_LOCK(wdev); if (wdev->ssid_len) return -EALREADY; if (!params->basic_rates) { /* * If no rates were explicitly configured, * use the mandatory rate set for 11b or * 11a for maximum compatibility. */ struct ieee80211_supported_band *sband = rdev->wiphy.bands[params->chandef.chan->band]; int j; u32 flag = params->chandef.chan->band == IEEE80211_BAND_5GHZ ? IEEE80211_RATE_MANDATORY_A : IEEE80211_RATE_MANDATORY_B; for (j = 0; j < sband->n_bitrates; j++) { if (sband->bitrates[j].flags & flag) params->basic_rates |= BIT(j); } } if (WARN_ON(wdev->connect_keys)) kfree(wdev->connect_keys); wdev->connect_keys = connkeys; wdev->ibss_fixed = params->channel_fixed; wdev->ibss_dfs_possible = params->userspace_handles_dfs; #ifdef CONFIG_CFG80211_WEXT wdev->wext.ibss.chandef = params->chandef; #endif check_chan = params->chandef.chan; if (params->userspace_handles_dfs) { /* use channel NULL to check for radar even if the current * channel is not a radar channel - it might decide to change * to DFS channel later. */ radar_detect_width = BIT(params->chandef.width); check_chan = NULL; } err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype, check_chan, (params->channel_fixed && !radar_detect_width) ? CHAN_MODE_SHARED : CHAN_MODE_EXCLUSIVE, radar_detect_width); if (err) { wdev->connect_keys = NULL; return err; } err = rdev_join_ibss(rdev, dev, params); if (err) { wdev->connect_keys = NULL; return err; } memcpy(wdev->ssid, params->ssid, params->ssid_len); wdev->ssid_len = params->ssid_len; return 0; }