/* * In Ad-Hoc mode, the IBSS is created if not found in scan list. * In both Ad-Hoc and infra mode, an deauthentication is performed * first. */ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, struct cfg80211_ssid *req_ssid) { int ret; struct mwifiex_adapter *adapter = priv->adapter; struct mwifiex_bssdescriptor *bss_desc = NULL; priv->scan_block = false; if (bss) { mwifiex_process_country_ie(priv, bss); /* Allocate and fill new bss descriptor */ bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), GFP_KERNEL); if (!bss_desc) return -ENOMEM; ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc); if (ret) goto done; } if (priv->bss_mode == NL80211_IFTYPE_STATION || priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { u8 config_bands; ret = mwifiex_deauthenticate(priv, NULL); if (ret) goto done; if (!bss_desc) return -1; if (mwifiex_band_to_radio_type(bss_desc->bss_band) == HostCmd_SCAN_RADIO_TYPE_BG) config_bands = BAND_B | BAND_G | BAND_GN; else config_bands = BAND_A | BAND_AN | BAND_AAC; if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) adapter->config_bands = config_bands; ret = mwifiex_check_network_compatibility(priv, bss_desc); if (ret) goto done; if (mwifiex_11h_get_csa_closed_channel(priv) == (u8)bss_desc->channel) { dev_err(adapter->dev, "Attempt to reconnect on csa closed chan(%d)\n", bss_desc->channel); goto done; } dev_dbg(adapter->dev, "info: SSID found in scan list ... " "associating...\n"); mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); /* Clear any past association response stored for * application retrieval */ priv->assoc_rsp_size = 0; ret = mwifiex_associate(priv, bss_desc); /* If auth type is auto and association fails using open mode, * try to connect using shared mode */ if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && priv->sec_info.is_authtype_auto && priv->sec_info.wep_enabled) { priv->sec_info.authentication_mode = NL80211_AUTHTYPE_SHARED_KEY; ret = mwifiex_associate(priv, bss_desc); } if (bss) cfg80211_put_bss(priv->adapter->wiphy, bss); } else { /* Adhoc mode */ /* If the requested SSID matches current SSID, return */ if (bss_desc && bss_desc->ssid.ssid_len && (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. ssid, &bss_desc->ssid))) { ret = 0; goto done; } /* Exit Adhoc mode first */ dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n"); ret = mwifiex_deauthenticate(priv, NULL); if (ret) goto done; priv->adhoc_is_link_sensed = false; ret = mwifiex_check_network_compatibility(priv, bss_desc); mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); if (!ret) { dev_dbg(adapter->dev, "info: network found in scan" " list. Joining...\n"); ret = mwifiex_adhoc_join(priv, bss_desc); if (bss) cfg80211_put_bss(priv->adapter->wiphy, bss); } else { dev_dbg(adapter->dev, "info: Network not found in " "the list, creating adhoc with ssid = %s\n", req_ssid->ssid); ret = mwifiex_adhoc_start(priv, req_ssid); } } done: /* beacon_ie buffer was allocated in function * mwifiex_fill_new_bss_desc(). Free it now. */ if (bss_desc) kfree(bss_desc->beacon_buf); kfree(bss_desc); return ret; }
/* * In Ad-Hoc mode, the IBSS is created if not found in scan list. * In both Ad-Hoc and infra mode, an deauthentication is performed * first. */ int mwifiex_bss_start(struct mwifiex_private *priv, struct cfg80211_bss *bss, struct cfg80211_ssid *req_ssid) { int ret; struct mwifiex_adapter *adapter = priv->adapter; struct mwifiex_bssdescriptor *bss_desc = NULL; priv->scan_block = false; if (bss) { mwifiex_process_country_ie(priv, bss); /* Allocate and fill new bss descriptor */ bss_desc = kzalloc(sizeof(struct mwifiex_bssdescriptor), GFP_KERNEL); if (!bss_desc) { dev_err(priv->adapter->dev, " failed to alloc bss_desc\n"); return -ENOMEM; } ret = mwifiex_fill_new_bss_desc(priv, bss, bss_desc); if (ret) goto done; } if (priv->bss_mode == NL80211_IFTYPE_STATION) { /* Infra mode */ ret = mwifiex_deauthenticate(priv, NULL); if (ret) goto done; ret = mwifiex_check_network_compatibility(priv, bss_desc); if (ret) goto done; dev_dbg(adapter->dev, "info: SSID found in scan list ... " "associating...\n"); if (!netif_queue_stopped(priv->netdev)) mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); /* Clear any past association response stored for * application retrieval */ priv->assoc_rsp_size = 0; ret = mwifiex_associate(priv, bss_desc); /* If auth type is auto and association fails using open mode, * try to connect using shared mode */ if (ret == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG && priv->sec_info.is_authtype_auto && priv->sec_info.wep_enabled) { priv->sec_info.authentication_mode = NL80211_AUTHTYPE_SHARED_KEY; ret = mwifiex_associate(priv, bss_desc); } if (bss) cfg80211_put_bss(bss); } else { /* Adhoc mode */ /* If the requested SSID matches current SSID, return */ if (bss_desc && bss_desc->ssid.ssid_len && (!mwifiex_ssid_cmp(&priv->curr_bss_params.bss_descriptor. ssid, &bss_desc->ssid))) { kfree(bss_desc); return 0; } /* Exit Adhoc mode first */ dev_dbg(adapter->dev, "info: Sending Adhoc Stop\n"); ret = mwifiex_deauthenticate(priv, NULL); if (ret) goto done; priv->adhoc_is_link_sensed = false; ret = mwifiex_check_network_compatibility(priv, bss_desc); if (!netif_queue_stopped(priv->netdev)) mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); if (!ret) { dev_dbg(adapter->dev, "info: network found in scan" " list. Joining...\n"); ret = mwifiex_adhoc_join(priv, bss_desc); if (bss) cfg80211_put_bss(bss); } else { dev_dbg(adapter->dev, "info: Network not found in " "the list, creating adhoc with ssid = %s\n", req_ssid->ssid); ret = mwifiex_adhoc_start(priv, req_ssid); } } done: kfree(bss_desc); return ret; }