diff options
Diffstat (limited to 'drivers/staging/rtl8723au/core/rtw_mlme.c')
| -rw-r--r-- | drivers/staging/rtl8723au/core/rtw_mlme.c | 2339 |
1 files changed, 2339 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723au/core/rtw_mlme.c b/drivers/staging/rtl8723au/core/rtw_mlme.c new file mode 100644 index 000000000..3c09ea9b7 --- /dev/null +++ b/drivers/staging/rtl8723au/core/rtw_mlme.c @@ -0,0 +1,2339 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + ******************************************************************************/ +#define _RTW_MLME_C_ + +#include <osdep_service.h> +#include <drv_types.h> +#include <recv_osdep.h> +#include <xmit_osdep.h> +#include <hal_intf.h> +#include <mlme_osdep.h> +#include <sta_info.h> +#include <linux/ieee80211.h> +#include <wifi.h> +#include <wlan_bssdef.h> +#include <rtw_sreset.h> + +static struct wlan_network * +rtw_select_candidate_from_queue(struct mlme_priv *pmlmepriv); +static int rtw_do_join(struct rtw_adapter *padapter); + +static void rtw_init_mlme_timer(struct rtw_adapter *padapter) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + setup_timer(&pmlmepriv->assoc_timer, rtw23a_join_to_handler, + (unsigned long)padapter); + + setup_timer(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler23a, + (unsigned long)padapter); + + setup_timer(&pmlmepriv->dynamic_chk_timer, + rtw_dynamic_check_timer_handler, (unsigned long)padapter); + + setup_timer(&pmlmepriv->set_scan_deny_timer, + rtw_set_scan_deny_timer_hdl, (unsigned long)padapter); +} + +int rtw_init_mlme_priv23a(struct rtw_adapter *padapter) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + pmlmepriv->nic_hdl = padapter; + + pmlmepriv->fw_state = 0; + pmlmepriv->cur_network.network.ifmode = NL80211_IFTYPE_UNSPECIFIED; + /* 1: active, 0: pasive. Maybe someday we should rename this + varable to "active_mode" (Jeff) */ + pmlmepriv->scan_mode = SCAN_ACTIVE; + + spin_lock_init(&pmlmepriv->lock); + _rtw_init_queue23a(&pmlmepriv->scanned_queue); + + memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct cfg80211_ssid)); + + rtw_clear_scan_deny(padapter); + + rtw_init_mlme_timer(padapter); + return _SUCCESS; +} + +#ifdef CONFIG_8723AU_AP_MODE +static void rtw_free_mlme_ie_data(u8 **ppie, u32 *plen) +{ + if (*ppie) { + kfree(*ppie); + *plen = 0; + *ppie = NULL; + } +} +#endif + +void rtw23a_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv) +{ +#ifdef CONFIG_8723AU_AP_MODE + kfree(pmlmepriv->assoc_req); + kfree(pmlmepriv->assoc_rsp); + rtw_free_mlme_ie_data(&pmlmepriv->wps_probe_req_ie, + &pmlmepriv->wps_probe_req_ie_len); +#endif +} + +void rtw_free_mlme_priv23a(struct mlme_priv *pmlmepriv) +{ + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_free_mlme_priv23a\n"); + + rtw23a_free_mlme_priv_ie_data(pmlmepriv); +} + +struct wlan_network *rtw_alloc_network(struct mlme_priv *pmlmepriv, gfp_t gfp) +{ + struct wlan_network *pnetwork; + + pnetwork = kzalloc(sizeof(struct wlan_network), gfp); + if (pnetwork) { + INIT_LIST_HEAD(&pnetwork->list); + pnetwork->network_type = 0; + pnetwork->fixed = false; + pnetwork->last_scanned = jiffies; + pnetwork->join_res = 0; + } + + return pnetwork; +} + +static void _rtw_free_network23a(struct mlme_priv *pmlmepriv, + struct wlan_network *pnetwork) +{ + if (!pnetwork) + return; + + if (pnetwork->fixed == true) + return; + + list_del_init(&pnetwork->list); + + kfree(pnetwork); +} + +/* + return the wlan_network with the matching addr + + Shall be called under atomic context... to avoid possible racing condition... +*/ +struct wlan_network * +rtw_find_network23a(struct rtw_queue *scanned_queue, u8 *addr) +{ + struct list_head *phead, *plist; + struct wlan_network *pnetwork = NULL; + + if (is_zero_ether_addr(addr)) { + pnetwork = NULL; + goto exit; + } + + /* spin_lock_bh(&scanned_queue->lock); */ + + phead = get_list_head(scanned_queue); + plist = phead->next; + + while (plist != phead) { + pnetwork = container_of(plist, struct wlan_network, list); + + if (ether_addr_equal(addr, pnetwork->network.MacAddress)) + break; + + plist = plist->next; + } + + if (plist == phead) + pnetwork = NULL; + + /* spin_unlock_bh(&scanned_queue->lock); */ + +exit: + + return pnetwork; +} + +void rtw_free_network_queue23a(struct rtw_adapter *padapter) +{ + struct list_head *phead, *plist, *ptmp; + struct wlan_network *pnetwork; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct rtw_queue *scanned_queue = &pmlmepriv->scanned_queue; + + spin_lock_bh(&scanned_queue->lock); + + phead = get_list_head(scanned_queue); + + list_for_each_safe(plist, ptmp, phead) { + pnetwork = container_of(plist, struct wlan_network, list); + + _rtw_free_network23a(pmlmepriv, pnetwork); + } + + spin_unlock_bh(&scanned_queue->lock); +} + +int rtw_if_up23a(struct rtw_adapter *padapter) +{ + int res; + + if (padapter->bDriverStopped || padapter->bSurpriseRemoved || + !check_fwstate(&padapter->mlmepriv, _FW_LINKED)) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "rtw_if_up23a:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", + padapter->bDriverStopped, padapter->bSurpriseRemoved); + res = false; + } else + res = true; + + return res; +} + +void rtw_generate_random_ibss23a(u8 *pibss) +{ + unsigned long curtime = jiffies; + + pibss[0] = 0x02; /* in ad-hoc mode bit1 must set to 1 */ + pibss[1] = 0x11; + pibss[2] = 0x87; + pibss[3] = curtime & 0xff;/* p[0]; */ + pibss[4] = (curtime >> 8) & 0xff;/* p[1]; */ + pibss[5] = (curtime >> 16) & 0xff;/* p[2]; */ +} + +void rtw_set_roaming(struct rtw_adapter *adapter, u8 to_roaming) +{ + if (to_roaming == 0) + adapter->mlmepriv.to_join = false; + adapter->mlmepriv.to_roaming = to_roaming; +} + +static void _rtw_roaming(struct rtw_adapter *padapter, + struct wlan_network *tgt_network) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct wlan_network *pnetwork; + int do_join_r; + + if (tgt_network) + pnetwork = tgt_network; + else + pnetwork = &pmlmepriv->cur_network; + + if (padapter->mlmepriv.to_roaming > 0) { + DBG_8723A("roaming from %s(%pM), length:%d\n", + pnetwork->network.Ssid.ssid, + pnetwork->network.MacAddress, + pnetwork->network.Ssid.ssid_len); + memcpy(&pmlmepriv->assoc_ssid, &pnetwork->network.Ssid, + sizeof(struct cfg80211_ssid)); + + pmlmepriv->assoc_by_bssid = false; + + while (1) { + do_join_r = rtw_do_join(padapter); + if (do_join_r == _SUCCESS) + break; + else { + DBG_8723A("roaming do_join return %d\n", + do_join_r); + pmlmepriv->to_roaming--; + + if (padapter->mlmepriv.to_roaming > 0) + continue; + else { + DBG_8723A("%s(%d) -to roaming fail, " + "indicate_disconnect\n", + __func__, __LINE__); + rtw_indicate_disconnect23a(padapter); + break; + } + } + } + } +} + +void rtw23a_roaming(struct rtw_adapter *padapter, + struct wlan_network *tgt_network) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + spin_lock_bh(&pmlmepriv->lock); + _rtw_roaming(padapter, tgt_network); + spin_unlock_bh(&pmlmepriv->lock); +} + +static void rtw_free_network_nolock(struct mlme_priv *pmlmepriv, + struct wlan_network *pnetwork) +{ + _rtw_free_network23a(pmlmepriv, pnetwork); +} + +bool rtw_is_same_ibss23a(struct rtw_adapter *adapter, + struct wlan_network *pnetwork) +{ + int ret; + struct security_priv *psecuritypriv = &adapter->securitypriv; + + if (psecuritypriv->dot11PrivacyAlgrthm != 0 && + pnetwork->network.Privacy == 0) + ret = false; + else if (psecuritypriv->dot11PrivacyAlgrthm == 0 && + pnetwork->network.Privacy == 1) + ret = false; + else + ret = true; + + return ret; +} + +inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b); +inline int is_same_ess(struct wlan_bssid_ex *a, struct wlan_bssid_ex *b) +{ + return (a->Ssid.ssid_len == b->Ssid.ssid_len) && + !memcmp(a->Ssid.ssid, b->Ssid.ssid, a->Ssid.ssid_len); +} + +int is_same_network23a(struct wlan_bssid_ex *src, struct wlan_bssid_ex *dst) +{ + u16 s_cap, d_cap; + + s_cap = src->capability; + d_cap = dst->capability; + + return ((src->Ssid.ssid_len == dst->Ssid.ssid_len) && + /* (src->DSConfig == dst->DSConfig) && */ + ether_addr_equal(src->MacAddress, dst->MacAddress) && + !memcmp(src->Ssid.ssid, dst->Ssid.ssid, src->Ssid.ssid_len) && + (s_cap & WLAN_CAPABILITY_IBSS) == + (d_cap & WLAN_CAPABILITY_IBSS) && + (s_cap & WLAN_CAPABILITY_ESS) == (d_cap & WLAN_CAPABILITY_ESS)); +} + +struct wlan_network * +rtw_get_oldest_wlan_network23a(struct rtw_queue *scanned_queue) +{ + struct list_head *plist, *phead; + struct wlan_network *pwlan; + struct wlan_network *oldest = NULL; + + phead = get_list_head(scanned_queue); + + list_for_each(plist, phead) { + pwlan = container_of(plist, struct wlan_network, list); + + if (pwlan->fixed != true) { + if (!oldest || time_after(oldest->last_scanned, + pwlan->last_scanned)) + oldest = pwlan; + } + } + + return oldest; +} + +void update_network23a(struct wlan_bssid_ex *dst, struct wlan_bssid_ex *src, + struct rtw_adapter *padapter, bool update_ie) +{ + u8 ss_ori = dst->SignalStrength; + u8 sq_ori = dst->SignalQuality; + long rssi_ori = dst->Rssi; + + u8 ss_smp = src->SignalStrength; + u8 sq_smp = src->SignalQuality; + long rssi_smp = src->Rssi; + + u8 ss_final; + u8 sq_final; + long rssi_final; + + DBG_8723A("%s %s(%pM, ch%u) ss_ori:%3u, sq_ori:%3u, rssi_ori:%3ld, " + "ss_smp:%3u, sq_smp:%3u, rssi_smp:%3ld\n", + __func__, src->Ssid.ssid, src->MacAddress, + src->DSConfig, ss_ori, sq_ori, rssi_ori, + ss_smp, sq_smp, rssi_smp + ); + + /* The rule below is 1/5 for sample value, 4/5 for history value */ + if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) && + is_same_network23a(&padapter->mlmepriv.cur_network.network, src)) { + /* Take the recvpriv's value for the connected AP*/ + ss_final = padapter->recvpriv.signal_strength; + sq_final = padapter->recvpriv.signal_qual; + /* the rssi value here is undecorated, and will be + used for antenna diversity */ + if (sq_smp != 101) /* from the right channel */ + rssi_final = (src->Rssi+dst->Rssi*4)/5; + else + rssi_final = rssi_ori; + } else { + if (sq_smp != 101) { /* from the right channel */ + ss_final = ((u32)src->SignalStrength + + (u32)dst->SignalStrength * 4) / 5; + sq_final = ((u32)src->SignalQuality + + (u32)dst->SignalQuality * 4) / 5; + rssi_final = src->Rssi+dst->Rssi * 4 / 5; + } else { + /* bss info not receiving from the right channel, use + the original RX signal infos */ + ss_final = dst->SignalStrength; + sq_final = dst->SignalQuality; + rssi_final = dst->Rssi; + } + + } + + if (update_ie) + memcpy(dst, src, get_wlan_bssid_ex_sz(src)); + + dst->SignalStrength = ss_final; + dst->SignalQuality = sq_final; + dst->Rssi = rssi_final; + + DBG_8723A("%s %s(%pM), SignalStrength:%u, SignalQuality:%u, " + "RawRSSI:%ld\n", __func__, dst->Ssid.ssid, dst->MacAddress, + dst->SignalStrength, dst->SignalQuality, dst->Rssi); +} + +static void update_current_network(struct rtw_adapter *adapter, + struct wlan_bssid_ex *pnetwork) +{ + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + + if (check_fwstate(pmlmepriv, _FW_LINKED) && + is_same_network23a(&pmlmepriv->cur_network.network, pnetwork)) { + update_network23a(&pmlmepriv->cur_network.network, + pnetwork, adapter, true); + + rtw_update_protection23a(adapter, + pmlmepriv->cur_network.network.IEs, + pmlmepriv->cur_network.network.IELength); + } +} + +/* + +Caller must hold pmlmepriv->lock first. + +*/ +static void rtw_update_scanned_network(struct rtw_adapter *adapter, + struct wlan_bssid_ex *target) +{ + struct list_head *plist, *phead; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct wlan_network *pnetwork = NULL; + struct wlan_network *oldest = NULL; + struct rtw_queue *queue = &pmlmepriv->scanned_queue; + u32 bssid_ex_sz; + int found = 0; + + spin_lock_bh(&queue->lock); + phead = get_list_head(queue); + + list_for_each(plist, phead) { + pnetwork = container_of(plist, struct wlan_network, list); + + if (is_same_network23a(&pnetwork->network, target)) { + found = 1; + break; + } + if (!oldest || time_after(oldest->last_scanned, + pnetwork->last_scanned)) + oldest = pnetwork; + } + + /* If we didn't find a match, then get a new network slot to initialize + * with this beacon's information */ + if (!found) { + pnetwork = rtw_alloc_network(pmlmepriv, GFP_ATOMIC); + if (!pnetwork) { + if (!oldest) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "something wrong here\n"); + goto exit; + } + pnetwork = oldest; + } else + list_add_tail(&pnetwork->list, &queue->queue); + + bssid_ex_sz = get_wlan_bssid_ex_sz(target); + target->Length = bssid_ex_sz; + memcpy(&pnetwork->network, target, bssid_ex_sz); + + /* variable initialize */ + pnetwork->fixed = false; + pnetwork->last_scanned = jiffies; + + pnetwork->network_type = 0; + pnetwork->join_res = 0; + + /* bss info not receiving from the right channel */ + if (pnetwork->network.SignalQuality == 101) + pnetwork->network.SignalQuality = 0; + } else { + /* + * we have an entry and we are going to update it. But + * this entry may be already expired. In this case we + * do the same as we found a new net and call the + * new_net handler + */ + bool update_ie = true; + + pnetwork->last_scanned = jiffies; + + /* target.reserved == 1, means that scanned network is + * a bcn frame. */ + if (pnetwork->network.IELength > target->IELength && + target->reserved == 1) + update_ie = false; + + update_network23a(&pnetwork->network, target, adapter, + update_ie); + } + +exit: + spin_unlock_bh(&queue->lock); +} + +static void rtw_add_network(struct rtw_adapter *adapter, + struct wlan_bssid_ex *pnetwork) +{ + update_current_network(adapter, pnetwork); + rtw_update_scanned_network(adapter, pnetwork); +} + +/* select the desired network based on the capability of the (i)bss. */ +/* check items: (1) security */ +/* (2) network_type */ +/* (3) WMM */ +/* (4) HT */ +/* (5) others */ +static int rtw_is_desired_network(struct rtw_adapter *adapter, + struct wlan_network *pnetwork) +{ + struct security_priv *psecuritypriv = &adapter->securitypriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + u32 desired_encmode; + u32 privacy; + int bselected = true; + + desired_encmode = psecuritypriv->ndisencryptstatus; + privacy = pnetwork->network.Privacy; + + if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) { + if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, + WLAN_OUI_TYPE_MICROSOFT_WPA, + pnetwork->network.IEs, + pnetwork->network.IELength)) + return true; + else + return false; + } + if (adapter->registrypriv.wifi_spec == 1) { + /* for correct flow of 8021X to do.... */ + if (desired_encmode == Ndis802_11EncryptionDisabled && + privacy != 0) + bselected = false; + } + + if (desired_encmode != Ndis802_11EncryptionDisabled && privacy == 0) { + DBG_8723A("desired_encmode: %d, privacy: %d\n", + desired_encmode, privacy); + bselected = false; + } + + if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + if (pnetwork->network.ifmode != + pmlmepriv->cur_network.network.ifmode) + bselected = false; + } + + return bselected; +} + +void rtw_survey_event_cb23a(struct rtw_adapter *adapter, const u8 *pbuf) +{ + u32 len; + struct wlan_bssid_ex *pnetwork; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct survey_event *survey = (struct survey_event *)pbuf; + + pnetwork = survey->bss; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "rtw_survey_event_cb23a, ssid=%s\n", pnetwork->Ssid.ssid); + + len = get_wlan_bssid_ex_sz(pnetwork); + if (len > (sizeof(struct wlan_bssid_ex))) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "****rtw_survey_event_cb23a: return a wrong bss ***\n"); + return; + } + + spin_lock_bh(&pmlmepriv->lock); + + /* update IBSS_network 's timestamp */ + if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) { + if (ether_addr_equal(pmlmepriv->cur_network.network.MacAddress, + pnetwork->MacAddress)) { + struct wlan_network *ibss_wlan; + + pmlmepriv->cur_network.network.beacon_interval = + pnetwork->beacon_interval; + pmlmepriv->cur_network.network.capability = + pnetwork->capability; + pmlmepriv->cur_network.network.tsf = pnetwork->tsf; + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + ibss_wlan = rtw_find_network23a( + &pmlmepriv->scanned_queue, + pnetwork->MacAddress); + if (ibss_wlan) { + pmlmepriv->cur_network.network.beacon_interval = + ibss_wlan->network.beacon_interval; + pmlmepriv->cur_network.network.capability = + ibss_wlan->network.capability; + pmlmepriv->cur_network.network.tsf = + ibss_wlan->network.tsf; + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + goto exit; + } + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + } + } + + /* lock pmlmepriv->lock when you accessing network_q */ + if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) { + if (pnetwork->Ssid.ssid[0] == 0) + pnetwork->Ssid.ssid_len = 0; + + rtw_add_network(adapter, pnetwork); + } + +exit: + + spin_unlock_bh(&pmlmepriv->lock); + + kfree(survey->bss); + survey->bss = NULL; +} + +void +rtw_surveydone_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf) +{ + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; + int ret; + + spin_lock_bh(&pmlmepriv->lock); + + if (pmlmepriv->wps_probe_req_ie) { + pmlmepriv->wps_probe_req_ie_len = 0; + kfree(pmlmepriv->wps_probe_req_ie); + pmlmepriv->wps_probe_req_ie = NULL; + } + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "rtw_surveydone_event_callback23a: fw_state:%x\n", + get_fwstate(pmlmepriv)); + + if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) { + del_timer_sync(&pmlmepriv->scan_to_timer); + + _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY); + } else { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "nic status =%x, survey done event comes too late!\n", + get_fwstate(pmlmepriv)); + } + + rtw_set_signal_stat_timer(&adapter->recvpriv); + + if (pmlmepriv->to_join == true) { + set_fwstate(pmlmepriv, _FW_UNDER_LINKING); + if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + ret = rtw_select_and_join_from_scanned_queue23a( + pmlmepriv); + if (ret != _SUCCESS) + rtw_do_join_adhoc(adapter); + } else { + pmlmepriv->to_join = false; + ret = rtw_select_and_join_from_scanned_queue23a( + pmlmepriv); + if (ret != _SUCCESS) { + DBG_8723A("try_to_join, but select scanning " + "queue fail, to_roaming:%d\n", + adapter->mlmepriv.to_roaming); + if (adapter->mlmepriv.to_roaming) { + if (--pmlmepriv->to_roaming == 0 || + rtw_sitesurvey_cmd23a( + adapter, + &pmlmepriv->assoc_ssid, 1, + NULL, 0) != _SUCCESS) { + rtw_set_roaming(adapter, 0); + rtw_free_assoc_resources23a( + adapter, 1); + rtw_indicate_disconnect23a( + adapter); + } else + pmlmepriv->to_join = true; + } + _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING); + } + } + } + + spin_unlock_bh(&pmlmepriv->lock); + + rtw_os_xmit_schedule23a(adapter); + + if (pmlmeext->sitesurvey_res.bss_cnt == 0) + rtw_sreset_reset(adapter); + + rtw_cfg80211_surveydone_event_callback(adapter); +} + +static void free_scanqueue(struct mlme_priv *pmlmepriv) +{ + struct wlan_network *pnetwork; + struct rtw_queue *scan_queue = &pmlmepriv->scanned_queue; + struct list_head *plist, *phead, *ptemp; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, "+free_scanqueue\n"); + spin_lock_bh(&scan_queue->lock); + + phead = get_list_head(scan_queue); + + list_for_each_safe(plist, ptemp, phead) { + pnetwork = container_of(plist, struct wlan_network, list); + pnetwork->fixed = false; + _rtw_free_network23a(pmlmepriv, pnetwork); + } + + spin_unlock_bh(&scan_queue->lock); +} + +/* + *rtw_free_assoc_resources23a: the caller has to lock pmlmepriv->lock + */ +void rtw_free_assoc_resources23a(struct rtw_adapter *adapter, + int lock_scanned_queue) +{ + struct wlan_network *pwlan; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct sta_priv *pstapriv = &adapter->stapriv; + struct wlan_network *tgt_network = &pmlmepriv->cur_network; + struct sta_info *psta; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, + "+rtw_free_assoc_resources23a\n"); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "tgt_network->network.MacAddress=%pM ssid=%s\n", + tgt_network->network.MacAddress, + tgt_network->network.Ssid.ssid); + + if (check_fwstate(pmlmepriv, WIFI_STATION_STATE|WIFI_AP_STATE)) { + psta = rtw_get_stainfo23a(&adapter->stapriv, + tgt_network->network.MacAddress); + + spin_lock_bh(&pstapriv->sta_hash_lock); + rtw_free_stainfo23a(adapter, psta); + spin_unlock_bh(&pstapriv->sta_hash_lock); + } + + if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE | + WIFI_ADHOC_MASTER_STATE|WIFI_AP_STATE)) { + rtw_free_all_stainfo23a(adapter); + + psta = rtw_get_bcmc_stainfo23a(adapter); + spin_lock_bh(&pstapriv->sta_hash_lock); + rtw_free_stainfo23a(adapter, psta); + spin_unlock_bh(&pstapriv->sta_hash_lock); + + rtw_init_bcmc_stainfo23a(adapter); + } + + if (lock_scanned_queue) + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + + pwlan = rtw_find_network23a(&pmlmepriv->scanned_queue, + tgt_network->network.MacAddress); + if (pwlan) + pwlan->fixed = false; + else + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_free_assoc_resources23a : pwlan== NULL\n"); + + if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) && + adapter->stapriv.asoc_sta_count == 1) + rtw_free_network_nolock(pmlmepriv, pwlan); + + if (lock_scanned_queue) + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + + pmlmepriv->key_mask = 0; +} + +/* +*rtw_indicate_connect23a: the caller has to lock pmlmepriv->lock +*/ +void rtw_indicate_connect23a(struct rtw_adapter *padapter) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "+rtw_indicate_connect23a\n"); + + pmlmepriv->to_join = false; + + if (!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) { + set_fwstate(pmlmepriv, _FW_LINKED); + + rtw_cfg80211_indicate_connect(padapter); + + netif_carrier_on(padapter->pnetdev); + + if (padapter->pid[2] != 0) + kill_pid(find_vpid(padapter->pid[2]), SIGALRM, 1); + } + + rtw_set_roaming(padapter, 0); + + rtw_set_scan_deny(padapter, 3000); + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "-rtw_indicate_connect23a: fw_state=0x%08x\n", + get_fwstate(pmlmepriv)); +} + +/* + *rtw_indicate_disconnect23a: the caller has to lock pmlmepriv->lock + */ +void rtw_indicate_disconnect23a(struct rtw_adapter *padapter) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "+rtw_indicate_disconnect23a\n"); + + _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING|WIFI_UNDER_WPS); + + /* DBG_8723A("clear wps when %s\n", __func__); */ + + if (padapter->mlmepriv.to_roaming > 0) + _clr_fwstate_(pmlmepriv, _FW_LINKED); + + if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) || + padapter->mlmepriv.to_roaming <= 0) { + rtw_os_indicate_disconnect23a(padapter); + + /* set ips_deny_time to avoid enter IPS before LPS leave */ + padapter->pwrctrlpriv.ips_deny_time = + jiffies + msecs_to_jiffies(3000); + + _clr_fwstate_(pmlmepriv, _FW_LINKED); + + rtw_clear_scan_deny(padapter); + } + + rtw_lps_ctrl_wk_cmd23a(padapter, LPS_CTRL_DISCONNECT, 1); +} + +void rtw_scan_abort23a(struct rtw_adapter *adapter) +{ + unsigned long start; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; + + start = jiffies; + pmlmeext->scan_abort = true; + while (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) && + jiffies_to_msecs(jiffies - start) <= 200) { + if (adapter->bDriverStopped || adapter->bSurpriseRemoved) + break; + + DBG_8723A("%s(%s): fw_state = _FW_UNDER_SURVEY!\n", + __func__, adapter->pnetdev->name); + msleep(20); + } + + if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) { + if (!adapter->bDriverStopped && !adapter->bSurpriseRemoved) + DBG_8723A("%s(%s): waiting for scan_abort time out!\n", + __func__, adapter->pnetdev->name); + rtw_cfg80211_indicate_scan_done(wdev_to_priv(adapter->rtw_wdev), + true); + } + pmlmeext->scan_abort = false; +} + +static struct sta_info * +rtw_joinbss_update_stainfo(struct rtw_adapter *padapter, + struct wlan_network *pnetwork) +{ + int i; + struct sta_info *bmc_sta, *psta; + struct recv_reorder_ctrl *preorder_ctrl; + struct sta_priv *pstapriv = &padapter->stapriv; + + psta = rtw_get_stainfo23a(pstapriv, pnetwork->network.MacAddress); + if (!psta) + psta = rtw_alloc_stainfo23a(pstapriv, + pnetwork->network.MacAddress, + GFP_ATOMIC); + + if (psta) { /* update ptarget_sta */ + DBG_8723A("%s\n", __func__); + + psta->aid = pnetwork->join_res; + psta->mac_id = 0; + + /* sta mode */ + rtl8723a_SetHalODMVar(padapter, HAL_ODM_STA_INFO, psta, true); + + /* security related */ + if (padapter->securitypriv.dot11AuthAlgrthm == + dot11AuthAlgrthm_8021X) { + padapter->securitypriv.binstallGrpkey = 0; + padapter->securitypriv.busetkipkey = 0; + + psta->ieee8021x_blocked = true; + psta->dot118021XPrivacy = + padapter->securitypriv.dot11PrivacyAlgrthm; + + memset(&psta->dot118021x_UncstKey, 0, + sizeof (union Keytype)); + + memset(&psta->dot11tkiprxmickey, 0, + sizeof (union Keytype)); + memset(&psta->dot11tkiptxmickey, 0, + sizeof (union Keytype)); + + memset(&psta->dot11txpn, 0, sizeof (union pn48)); + memset(&psta->dot11rxpn, 0, sizeof (union pn48)); + } + + /* Commented by Albert 2012/07/21 */ + /* When doing the WPS, the wps_ie_len won't equal to 0 */ + /* And the Wi-Fi driver shouldn't allow the data packet + to be transmitted. */ + if (padapter->securitypriv.wps_ie_len != 0) { + psta->ieee8021x_blocked = true; + padapter->securitypriv.wps_ie_len = 0; + } + + /* for A-MPDU Rx reordering buffer control for bmc_sta & + * sta_info */ + /* if A-MPDU Rx is enabled, resetting + rx_ordering_ctrl wstart_b(indicate_seq) to default + value = 0xffff */ + /* todo: check if AP can send A-MPDU packets */ + for (i = 0; i < 16 ; i++) { + /* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */ + preorder_ctrl = &psta->recvreorder_ctrl[i]; + preorder_ctrl->enable = false; + preorder_ctrl->indicate_seq = 0xffff; + preorder_ctrl->wend_b = 0xffff; + /* max_ampdu_sz; ex. 32(kbytes) -> wsize_b = 32 */ + preorder_ctrl->wsize_b = 64; + } + + bmc_sta = rtw_get_bcmc_stainfo23a(padapter); + if (bmc_sta) { + for (i = 0; i < 16 ; i++) { + preorder_ctrl = &bmc_sta->recvreorder_ctrl[i]; + preorder_ctrl->enable = false; + preorder_ctrl->indicate_seq = 0xffff; + preorder_ctrl->wend_b = 0xffff; + /* max_ampdu_sz; ex. 32(kbytes) -> + wsize_b = 32 */ + preorder_ctrl->wsize_b = 64; + } + } + + /* misc. */ + update_sta_info23a(padapter, psta); + + } + + return psta; +} + +/* pnetwork : returns from rtw23a_joinbss_event_cb */ +/* ptarget_wlan: found from scanned_queue */ +static void +rtw_joinbss_update_network23a(struct rtw_adapter *padapter, + struct wlan_network *ptarget_wlan, + struct wlan_network *pnetwork) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct wlan_network *cur_network = &pmlmepriv->cur_network; + + DBG_8723A("%s\n", __func__); + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "fw_state:%x, BSSID:%pM\n", + get_fwstate(pmlmepriv), + pnetwork->network.MacAddress); + + /* why not use ptarget_wlan?? */ + memcpy(&cur_network->network, &pnetwork->network, + pnetwork->network.Length); + /* some IEs in pnetwork is wrong, so we should use ptarget_wlan IEs */ + cur_network->network.IELength = ptarget_wlan->network.IELength; + memcpy(&cur_network->network.IEs[0], &ptarget_wlan->network.IEs[0], + MAX_IE_SZ); + + cur_network->network.capability = ptarget_wlan->network.capability; + cur_network->network.beacon_interval = + ptarget_wlan->network.beacon_interval; + cur_network->network.tsf = ptarget_wlan->network.tsf; + + rtw_set_signal_stat_timer(&padapter->recvpriv); + padapter->recvpriv.signal_strength = + ptarget_wlan->network.SignalStrength; + padapter->recvpriv.signal_qual = ptarget_wlan->network.SignalQuality; + /* + * the ptarget_wlan->network.Rssi is raw data, we use + * ptarget_wlan->network.SignalStrength instead (has scaled) + */ + DBG_8723A("%s signal_strength:%3u, signal_qual:%3u\n", + __func__, padapter->recvpriv.signal_strength, + padapter->recvpriv.signal_qual); + rtw_set_signal_stat_timer(&padapter->recvpriv); + + /* update fw_state will clr _FW_UNDER_LINKING here indirectly */ + switch (pnetwork->network.ifmode) { + case NL80211_IFTYPE_P2P_CLIENT: + case NL80211_IFTYPE_STATION: + if (pmlmepriv->fw_state & WIFI_UNDER_WPS) + pmlmepriv->fw_state = WIFI_STATION_STATE|WIFI_UNDER_WPS; + else + pmlmepriv->fw_state = WIFI_STATION_STATE; + break; + case NL80211_IFTYPE_ADHOC: + pmlmepriv->fw_state = WIFI_ADHOC_STATE; + break; + default: + pmlmepriv->fw_state = WIFI_NULL_STATE; + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "Invalid network_mode\n"); + break; + } + + rtw_update_protection23a(padapter, cur_network->network.IEs, + cur_network->network.IELength); + + rtw_update_ht_cap23a(padapter, cur_network->network.IEs, + cur_network->network.IELength); +} + +/* + * Notes: + * the function could be > passive_level (the same context as Rx tasklet) + * pnetwork : returns from rtw23a_joinbss_event_cb + * ptarget_wlan: found from scanned_queue + * if join_res > 0, for (fw_state==WIFI_STATION_STATE), + * we check if "ptarget_sta" & "ptarget_wlan" exist. + * if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), + * we only check if "ptarget_wlan" exist. + * if join_res > 0, update "cur_network->network" from "pnetwork->network" + * if (ptarget_wlan !=NULL). + */ + +void rtw_joinbss_event_prehandle23a(struct rtw_adapter *adapter, u8 *pbuf) +{ + struct sta_info *ptarget_sta, *pcur_sta; + struct sta_priv *pstapriv = &adapter->stapriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct wlan_network *pnetwork = (struct wlan_network *)pbuf; + struct wlan_network *cur_network = &pmlmepriv->cur_network; + struct wlan_network *pcur_wlan, *ptarget_wlan = NULL; + bool the_same_macaddr; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "joinbss event call back received with res=%d\n", + pnetwork->join_res); + + if (pmlmepriv->assoc_ssid.ssid_len == 0) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "@@@@@ joinbss event call back for Any SSid\n"); + } else { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "@@@@@ rtw23a_joinbss_event_cb for SSid:%s\n", + pmlmepriv->assoc_ssid.ssid); + } + + if (ether_addr_equal(pnetwork->network.MacAddress, + cur_network->network.MacAddress)) + the_same_macaddr = true; + else + the_same_macaddr = false; + + pnetwork->network.Length = get_wlan_bssid_ex_sz(&pnetwork->network); + if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex)) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "***joinbss_evt_callback return a wrong bss ***\n"); + return; + } + + spin_lock_bh(&pmlmepriv->lock); + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "rtw23a_joinbss_event_cb !! _enter_critical\n"); + + if (pnetwork->join_res > 0) { + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) { + /* s1. find ptarget_wlan */ + if (check_fwstate(pmlmepriv, _FW_LINKED)) { + if (the_same_macaddr) { + ptarget_wlan = rtw_find_network23a(&pmlmepriv->scanned_queue, cur_network->network.MacAddress); + } else { + pcur_wlan = rtw_find_network23a(&pmlmepriv->scanned_queue, cur_network->network.MacAddress); + if (pcur_wlan) + pcur_wlan->fixed = false; + + pcur_sta = rtw_get_stainfo23a(pstapriv, cur_network->network.MacAddress); + if (pcur_sta) { + spin_lock_bh(&pstapriv->sta_hash_lock); + rtw_free_stainfo23a(adapter, + pcur_sta); + spin_unlock_bh(&pstapriv->sta_hash_lock); + } + + ptarget_wlan = rtw_find_network23a(&pmlmepriv->scanned_queue, pnetwork->network.MacAddress); + if (check_fwstate(pmlmepriv, + WIFI_STATION_STATE)) { + if (ptarget_wlan) + ptarget_wlan->fixed = + true; + } + } + + } else { + ptarget_wlan = rtw_find_network23a( + &pmlmepriv->scanned_queue, + pnetwork->network.MacAddress); + if (check_fwstate(pmlmepriv, + WIFI_STATION_STATE)) { + if (ptarget_wlan) + ptarget_wlan->fixed = true; + } + } + + /* s2. update cur_network */ + if (ptarget_wlan) + rtw_joinbss_update_network23a(adapter, + ptarget_wlan, + pnetwork); + else { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "Can't find ptarget_wlan when joinbss_event callback\n"); + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + goto ignore_joinbss_callback; + } + + /* s3. find ptarget_sta & update ptarget_sta after + update cur_network only for station mode */ + if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { + ptarget_sta = rtw_joinbss_update_stainfo( + adapter, pnetwork); + if (!ptarget_sta) { + RT_TRACE(_module_rtl871x_mlme_c_, + _drv_err_, + "Can't update stainfo when joinbss_event callback\n"); + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + goto ignore_joinbss_callback; + } + } + + /* s4. indicate connect */ + if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) + rtw_indicate_connect23a(adapter); + else { + /* adhoc mode will rtw_indicate_connect23a + when rtw_stassoc_event_callback23a */ + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "adhoc mode, fw_state:%x\n", + get_fwstate(pmlmepriv)); + } + + /* s5. Cancle assoc_timer */ + del_timer_sync(&pmlmepriv->assoc_timer); + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "Cancle assoc_timer\n"); + } else { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw23a_joinbss_event_cb err: fw_state:%x\n", + get_fwstate(pmlmepriv)); + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + goto ignore_joinbss_callback; + } + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + } else if (pnetwork->join_res == -4) { + rtw_reset_securitypriv23a(adapter); + mod_timer(&pmlmepriv->assoc_timer, + jiffies + msecs_to_jiffies(1)); + + /* rtw_free_assoc_resources23a(adapter, 1); */ + + if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "fail! clear _FW_UNDER_LINKING ^^^fw_state=%x\n", + get_fwstate(pmlmepriv)); + _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING); + } + } else { + /* if join_res < 0 (join fails), then try again */ + mod_timer(&pmlmepriv->assoc_timer, + jiffies + msecs_to_jiffies(1)); + _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING); + } + +ignore_joinbss_callback: + + spin_unlock_bh(&pmlmepriv->lock); +} + +void rtw23a_joinbss_event_cb(struct rtw_adapter *adapter, const u8 *pbuf) +{ + struct wlan_network *pnetwork = (struct wlan_network *)pbuf; + + mlmeext_joinbss_event_callback23a(adapter, pnetwork->join_res); + + rtw_os_xmit_schedule23a(adapter); +} + +void rtw_stassoc_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf) +{ + struct sta_info *psta; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf; + struct wlan_network *cur_network = &pmlmepriv->cur_network; + struct wlan_network *ptarget_wlan; + + if (rtw_access_ctrl23a(adapter, pstassoc->macaddr) == false) + return; + +#ifdef CONFIG_8723AU_AP_MODE + if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { + psta = rtw_get_stainfo23a(&adapter->stapriv, pstassoc->macaddr); + if (psta) { + /* bss_cap_update_on_sta_join23a(adapter, psta); */ + /* sta_info_update23a(adapter, psta); */ + ap_sta_info_defer_update23a(adapter, psta); + } + return; + } +#endif + /* for AD-HOC mode */ + psta = rtw_get_stainfo23a(&adapter->stapriv, pstassoc->macaddr); + if (psta != NULL) { + /* the sta have been in sta_info_queue => do nothing */ + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "Error: rtw_stassoc_event_callback23a: sta has been in sta_hash_queue\n"); + /* between drv has received this event before and + fw have not yet to set key to CAM_ENTRY) */ + return; + } + + psta = rtw_alloc_stainfo23a(&adapter->stapriv, pstassoc->macaddr, + GFP_KERNEL); + if (!psta) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "Can't alloc sta_info when rtw_stassoc_event_callback23a\n"); + return; + } + + /* to do : init sta_info variable */ + psta->qos_option = 0; + psta->mac_id = (uint)pstassoc->cam_id; + /* psta->aid = (uint)pstassoc->cam_id; */ + DBG_8723A("%s\n", __func__); + /* for ad-hoc mode */ + rtl8723a_SetHalODMVar(adapter, HAL_ODM_STA_INFO, psta, true); + + if (adapter->securitypriv.dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) + psta->dot118021XPrivacy = + adapter->securitypriv.dot11PrivacyAlgrthm; + + psta->ieee8021x_blocked = false; + + spin_lock_bh(&pmlmepriv->lock); + + if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) || + check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + if (adapter->stapriv.asoc_sta_count == 2) { + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + ptarget_wlan = + rtw_find_network23a(&pmlmepriv->scanned_queue, + cur_network->network.MacAddress); + if (ptarget_wlan) + ptarget_wlan->fixed = true; + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + /* a sta + bc/mc_stainfo (not Ibss_stainfo) */ + rtw_indicate_connect23a(adapter); + } + } + + spin_unlock_bh(&pmlmepriv->lock); + + mlmeext_sta_add_event_callback23a(adapter, psta); +} + +void rtw_stadel_event_callback23a(struct rtw_adapter *adapter, const u8 *pbuf) +{ + int mac_id; + struct sta_info *psta; + struct wlan_network *pwlan; + struct wlan_bssid_ex *pdev_network; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct stadel_event *pstadel = (struct stadel_event *)pbuf; + struct sta_priv *pstapriv = &adapter->stapriv; + struct wlan_network *tgt_network = &pmlmepriv->cur_network; + + psta = rtw_get_stainfo23a(&adapter->stapriv, pstadel->macaddr); + if (psta) + mac_id = psta->mac_id; + else + mac_id = pstadel->mac_id; + + DBG_8723A("%s(mac_id=%d)=%pM\n", __func__, mac_id, pstadel->macaddr); + + if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) + return; + + mlmeext_sta_del_event_callback23a(adapter); + + spin_lock_bh(&pmlmepriv->lock); + + if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { + if (adapter->mlmepriv.to_roaming > 0) { + /* this stadel_event is caused by roaming, + decrease to_roaming */ + pmlmepriv->to_roaming--; + } else if (adapter->mlmepriv.to_roaming == 0) + rtw_set_roaming(adapter, adapter->registrypriv.max_roaming_times); + if (*((u16 *)pstadel->rsvd) != WLAN_REASON_EXPIRATION_CHK) + rtw_set_roaming(adapter, 0); /* don't roam */ + + rtw_free_uc_swdec_pending_queue23a(adapter); + + rtw_free_assoc_resources23a(adapter, 1); + rtw_indicate_disconnect23a(adapter); + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + /* remove the network entry in scanned_queue */ + pwlan = rtw_find_network23a(&pmlmepriv->scanned_queue, + tgt_network->network.MacAddress); + if (pwlan) { + pwlan->fixed = false; + rtw_free_network_nolock(pmlmepriv, pwlan); + } + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + + _rtw_roaming(adapter, tgt_network); + } + + if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) || + check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + + spin_lock_bh(&pstapriv->sta_hash_lock); + rtw_free_stainfo23a(adapter, psta); + spin_unlock_bh(&pstapriv->sta_hash_lock); + + /* a sta + bc/mc_stainfo (not Ibss_stainfo) */ + if (adapter->stapriv.asoc_sta_count == 1) { + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + /* free old ibss network */ + /* pwlan = rtw_find_network23a( + &pmlmepriv->scanned_queue, pstadel->macaddr); */ + pwlan = rtw_find_network23a(&pmlmepriv->scanned_queue, + tgt_network->network.MacAddress); + if (pwlan) { + pwlan->fixed = false; + rtw_free_network_nolock(pmlmepriv, pwlan); + } + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + /* re-create ibss */ + pdev_network = &adapter->registrypriv.dev_network; + + memcpy(pdev_network, &tgt_network->network, + get_wlan_bssid_ex_sz(&tgt_network->network)); + + rtw_do_join_adhoc(adapter); + } + } + + spin_unlock_bh(&pmlmepriv->lock); +} + +/* +* rtw23a_join_to_handler - Timeout/failure handler for CMD JoinBss +* @adapter: pointer to _adapter structure +*/ +void rtw23a_join_to_handler (unsigned long data) +{ + struct rtw_adapter *adapter = (struct rtw_adapter *)data; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + int do_join_r; + + DBG_8723A("%s, fw_state=%x\n", __func__, get_fwstate(pmlmepriv)); + + if (adapter->bDriverStopped || adapter->bSurpriseRemoved) + return; + + spin_lock_bh(&pmlmepriv->lock); + + if (adapter->mlmepriv.to_roaming > 0) { + /* join timeout caused by roaming */ + while (1) { + pmlmepriv->to_roaming--; + if (adapter->mlmepriv.to_roaming != 0) { + /* try another */ + DBG_8723A("%s try another roaming\n", __func__); + do_join_r = rtw_do_join(adapter); + if (do_join_r != _SUCCESS) { + DBG_8723A("%s roaming do_join return " + "%d\n", __func__ , do_join_r); + continue; + } + break; + } else { + DBG_8723A("%s We've try roaming but fail\n", + __func__); + rtw_indicate_disconnect23a(adapter); + break; + } + } + } else { + rtw_indicate_disconnect23a(adapter); + free_scanqueue(pmlmepriv);/* */ + + /* indicate disconnect for the case that join_timeout and + check_fwstate != FW_LINKED */ + rtw_cfg80211_indicate_disconnect(adapter); + } + + spin_unlock_bh(&pmlmepriv->lock); + +} + +/* +* rtw_scan_timeout_handler23a - Timeout/Failure handler for CMD SiteSurvey +* @data: pointer to _adapter structure +*/ +void rtw_scan_timeout_handler23a(unsigned long data) +{ + struct rtw_adapter *adapter = (struct rtw_adapter *)data; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + + DBG_8723A("%s(%s): fw_state =%x\n", __func__, adapter->pnetdev->name, + get_fwstate(pmlmepriv)); + + spin_lock_bh(&pmlmepriv->lock); + + _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY); + + spin_unlock_bh(&pmlmepriv->lock); + + rtw_cfg80211_indicate_scan_done(wdev_to_priv(adapter->rtw_wdev), true); +} + +void rtw_dynamic_check_timer_handler(unsigned long data) +{ + struct rtw_adapter *adapter = (struct rtw_adapter *)data; + + if (adapter->hw_init_completed == false) + goto out; + + if (adapter->bDriverStopped == true || + adapter->bSurpriseRemoved == true) + goto out; + + if (adapter->net_closed == true) + goto out; + + rtw_dynamic_chk_wk_cmd23a(adapter); + +out: + mod_timer(&adapter->mlmepriv.dynamic_chk_timer, + jiffies + msecs_to_jiffies(2000)); +} + +inline bool rtw_is_scan_deny(struct rtw_adapter *adapter) +{ + struct mlme_priv *mlmepriv = &adapter->mlmepriv; + + return (atomic_read(&mlmepriv->set_scan_deny) != 0) ? true : false; +} + +void rtw_clear_scan_deny(struct rtw_adapter *adapter) +{ + struct mlme_priv *mlmepriv = &adapter->mlmepriv; + + atomic_set(&mlmepriv->set_scan_deny, 0); +} + +void rtw_set_scan_deny_timer_hdl(unsigned long data) +{ + struct rtw_adapter *adapter = (struct rtw_adapter *)data; + + rtw_clear_scan_deny(adapter); +} + +void rtw_set_scan_deny(struct rtw_adapter *adapter, u32 ms) +{ + struct mlme_priv *mlmepriv = &adapter->mlmepriv; + + atomic_set(&mlmepriv->set_scan_deny, 1); + mod_timer(&mlmepriv->set_scan_deny_timer, + jiffies + msecs_to_jiffies(ms)); +} + +#if defined(IEEE80211_SCAN_RESULT_EXPIRE) +#define RTW_SCAN_RESULT_EXPIRE \ + ((IEEE80211_SCAN_RESULT_EXPIRE / (HZ*1000)) - 1000) /* 3000 -1000 */ +#else +#define RTW_SCAN_RESULT_EXPIRE 2000 +#endif + +/* +* Select a new join candidate from the original @param candidate and +* @param competitor +* @return true: candidate is updated +* @return false: candidate is not updated +*/ +static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv, + struct wlan_network **candidate, + struct wlan_network *competitor) +{ + int updated = false; + struct rtw_adapter *adapter; + + adapter = container_of(pmlmepriv, struct rtw_adapter, mlmepriv); + + /* check bssid, if needed */ + if (pmlmepriv->assoc_by_bssid == true) { + if (!ether_addr_equal(competitor->network.MacAddress, + pmlmepriv->assoc_bssid)) + goto exit; + } + + /* check ssid, if needed */ + if (pmlmepriv->assoc_ssid.ssid_len) { + if (competitor->network.Ssid.ssid_len != + pmlmepriv->assoc_ssid.ssid_len || + memcmp(competitor->network.Ssid.ssid, + pmlmepriv->assoc_ssid.ssid, + pmlmepriv->assoc_ssid.ssid_len)) + goto exit; + } + + if (rtw_is_desired_network(adapter, competitor) == false) + goto exit; + + if (adapter->mlmepriv.to_roaming > 0) { + unsigned int passed; + + passed = jiffies_to_msecs(jiffies - competitor->last_scanned); + if (passed >= RTW_SCAN_RESULT_EXPIRE || + is_same_ess(&competitor->network, + &pmlmepriv->cur_network.network) == false) + goto exit; + } + + if (!*candidate || + (*candidate)->network.Rssi<competitor->network.Rssi) { + *candidate = competitor; + updated = true; + } + + if (updated) { + DBG_8723A("[by_bssid:%u][assoc_ssid:%s][to_roaming:%u] new candidate: %s(%pM) rssi:%d\n", + pmlmepriv->assoc_by_bssid, + pmlmepriv->assoc_ssid.ssid, + adapter->mlmepriv.to_roaming, + (*candidate)->network.Ssid.ssid, + (*candidate)->network.MacAddress, + (int)(*candidate)->network.Rssi); + } + +exit: + return updated; +} + +/* +Calling context: +The caller of the sub-routine will be in critical section... + +The caller must hold the following spinlock + +pmlmepriv->lock + +*/ + +static int rtw_do_join(struct rtw_adapter *padapter) +{ + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + int ret; + + pmlmepriv->cur_network.join_res = -2; + + set_fwstate(pmlmepriv, _FW_UNDER_LINKING); + + pmlmepriv->to_join = true; + + ret = rtw_select_and_join_from_scanned_queue23a(pmlmepriv); + if (ret == _SUCCESS) { + pmlmepriv->to_join = false; + } else { + if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) { + /* switch to ADHOC_MASTER */ + ret = rtw_do_join_adhoc(padapter); + if (ret != _SUCCESS) + goto exit; + } else { + /* can't associate ; reset under-linking */ + _clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING); + + ret = _FAIL; + pmlmepriv->to_join = false; + } + } + +exit: + return ret; +} + +static struct wlan_network * +rtw_select_candidate_from_queue(struct mlme_priv *pmlmepriv) +{ + struct wlan_network *pnetwork, *candidate = NULL; + struct rtw_queue *queue = &pmlmepriv->scanned_queue; + struct list_head *phead, *plist, *ptmp; + + spin_lock_bh(&pmlmepriv->scanned_queue.lock); + phead = get_list_head(queue); + + list_for_each_safe(plist, ptmp, phead) { + pnetwork = container_of(plist, struct wlan_network, list); + if (!pnetwork) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "%s: return _FAIL:(pnetwork == NULL)\n", + __func__); + goto exit; + } + + rtw_check_join_candidate(pmlmepriv, &candidate, pnetwork); + } + +exit: + spin_unlock_bh(&pmlmepriv->scanned_queue.lock); + return candidate; +} + + +int rtw_do_join_adhoc(struct rtw_adapter *adapter) +{ + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct wlan_bssid_ex *pdev_network; + u8 *ibss; + int ret; + + pdev_network = &adapter->registrypriv.dev_network; + ibss = adapter->registrypriv.dev_network.MacAddress; + + _clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY); + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "switching to adhoc master\n"); + + memcpy(&pdev_network->Ssid, &pmlmepriv->assoc_ssid, + sizeof(struct cfg80211_ssid)); + + rtw_update_registrypriv_dev_network23a(adapter); + rtw_generate_random_ibss23a(ibss); + + pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE; + + ret = rtw_createbss_cmd23a(adapter); + if (ret != _SUCCESS) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "Error =>rtw_createbss_cmd23a status FAIL\n"); + } else { + pmlmepriv->to_join = false; + } + + return ret; +} + +int rtw_do_join_network(struct rtw_adapter *adapter, + struct wlan_network *candidate) +{ + int ret; + + /* check for situation of _FW_LINKED */ + if (check_fwstate(&adapter->mlmepriv, _FW_LINKED)) { + DBG_8723A("%s: _FW_LINKED while ask_for_joinbss!\n", __func__); + + rtw_disassoc_cmd23a(adapter, 0, true); + rtw_indicate_disconnect23a(adapter); + rtw_free_assoc_resources23a(adapter, 0); + } + set_fwstate(&adapter->mlmepriv, _FW_UNDER_LINKING); + + ret = rtw_joinbss_cmd23a(adapter, candidate); + + if (ret == _SUCCESS) + mod_timer(&adapter->mlmepriv.assoc_timer, + jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT)); + + return ret; +} + +int rtw_select_and_join_from_scanned_queue23a(struct mlme_priv *pmlmepriv) +{ + struct rtw_adapter *adapter; + struct wlan_network *candidate = NULL; + int ret; + + adapter = pmlmepriv->nic_hdl; + + candidate = rtw_select_candidate_from_queue(pmlmepriv); + if (!candidate) { + DBG_8723A("%s: return _FAIL(candidate == NULL)\n", __func__); + ret = _FAIL; + goto exit; + } else { + DBG_8723A("%s: candidate: %s(%pM, ch:%u)\n", + __func__, + candidate->network.Ssid.ssid, + candidate->network.MacAddress, + candidate->network.DSConfig); + } + + ret = rtw_do_join_network(adapter, candidate); + +exit: + return ret; +} + +int rtw_set_auth23a(struct rtw_adapter *adapter, + struct security_priv *psecuritypriv) +{ + struct cmd_obj *pcmd; + struct setauth_parm *psetauthparm; + struct cmd_priv *pcmdpriv = &adapter->cmdpriv; + int res = _SUCCESS; + + pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); + if (!pcmd) { + res = _FAIL; /* try again */ + goto exit; + } + + psetauthparm = kzalloc(sizeof(struct setauth_parm), GFP_KERNEL); + if (!psetauthparm) { + kfree(pcmd); + res = _FAIL; + goto exit; + } + + psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm; + + pcmd->cmdcode = _SetAuth_CMD_; + pcmd->parmbuf = (unsigned char *)psetauthparm; + pcmd->cmdsz = (sizeof(struct setauth_parm)); + pcmd->rsp = NULL; + pcmd->rspsz = 0; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "after enqueue set_auth_cmd, auth_mode=%x\n", + psecuritypriv->dot11AuthAlgrthm); + + res = rtw_enqueue_cmd23a(pcmdpriv, pcmd); + +exit: + + return res; +} + +int rtw_set_key23a(struct rtw_adapter *adapter, + struct security_priv *psecuritypriv, int keyid, u8 set_tx) +{ + u8 keylen; + struct cmd_obj *pcmd; + struct setkey_parm *psetkeyparm; + struct cmd_priv *pcmdpriv = &adapter->cmdpriv; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + int res = _SUCCESS; + + if (keyid >= 4) { + res = _FAIL; + goto exit; + } + + pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL); + if (!pcmd) { + res = _FAIL; /* try again */ + goto exit; + } + psetkeyparm = kzalloc(sizeof(struct setkey_parm), GFP_KERNEL); + if (!psetkeyparm) { + kfree(pcmd); + res = _FAIL; + goto exit; + } + + if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) { + psetkeyparm->algorithm = (unsigned char) + psecuritypriv->dot118021XGrpPrivacy; + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_set_key23a: psetkeyparm->algorithm = (unsigned char)psecuritypriv->dot118021XGrpPrivacy =%d\n", + psetkeyparm->algorithm); + } else { + psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm; + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_set_key23a: psetkeyparm->algorithm = (u8)psecuritypriv->dot11PrivacyAlgrthm =%d\n", + psetkeyparm->algorithm); + } + psetkeyparm->keyid = keyid;/* 0~3 */ + psetkeyparm->set_tx = set_tx; + if (is_wep_enc(psetkeyparm->algorithm)) + pmlmepriv->key_mask |= BIT(psetkeyparm->keyid); + + DBG_8723A("==> rtw_set_key23a algorithm(%x), keyid(%x), key_mask(%x)\n", + psetkeyparm->algorithm, psetkeyparm->keyid, + pmlmepriv->key_mask); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_set_key23a: psetkeyparm->algorithm =%d psetkeyparm->keyid = (u8)keyid =%d\n", + psetkeyparm->algorithm, keyid); + + switch (psetkeyparm->algorithm) { + case WLAN_CIPHER_SUITE_WEP40: + keylen = 5; + memcpy(&psetkeyparm->key[0], + &psecuritypriv->wep_key[keyid].key, keylen); + break; + case WLAN_CIPHER_SUITE_WEP104: + keylen = 13; + memcpy(&psetkeyparm->key[0], + &psecuritypriv->wep_key[keyid].key, keylen); + break; + case WLAN_CIPHER_SUITE_TKIP: + keylen = 16; + memcpy(&psetkeyparm->key, + &psecuritypriv->dot118021XGrpKey[keyid], keylen); + psetkeyparm->grpkey = 1; + break; + case WLAN_CIPHER_SUITE_CCMP: + keylen = 16; + memcpy(&psetkeyparm->key, + &psecuritypriv->dot118021XGrpKey[keyid], keylen); + psetkeyparm->grpkey = 1; + break; + default: + RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, + "rtw_set_key23a:psecuritypriv->dot11PrivacyAlgrthm = %x (must be 1 or 2 or 4 or 5)\n", + psecuritypriv->dot11PrivacyAlgrthm); + res = _FAIL; + kfree(pcmd); + kfree(psetkeyparm); + goto exit; + } + + pcmd->cmdcode = _SetKey_CMD_; + pcmd->parmbuf = (u8 *)psetkeyparm; + pcmd->cmdsz = (sizeof(struct setkey_parm)); + pcmd->rsp = NULL; + pcmd->rspsz = 0; + + /* sema_init(&pcmd->cmd_sem, 0); */ + + res = rtw_enqueue_cmd23a(pcmdpriv, pcmd); + +exit: + + return res; +} + +/* adjust IEs for rtw_joinbss_cmd23a in WMM */ +int rtw_restruct_wmm_ie23a(struct rtw_adapter *adapter, u8 *in_ie, + u8 *out_ie, uint in_len, uint initial_out_len) +{ + int ielength; + const u8 *p; + + ielength = initial_out_len; + + p = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, + WLAN_OUI_TYPE_MICROSOFT_WMM, + in_ie, in_len); + + if (p && p[1]) { + memcpy(out_ie + initial_out_len, p, 9); + + out_ie[initial_out_len + 1] = 7; + out_ie[initial_out_len + 6] = 0; + out_ie[initial_out_len + 8] = 0; + + ielength += 9; + } + + return ielength; +} + +/* */ +/* Ported from 8185: IsInPreAuthKeyList(). + (Renamed from SecIsInPreAuthKeyList(), 2006-10-13.) */ +/* Added by Annie, 2006-05-07. */ +/* */ +/* Search by BSSID, */ +/* Return Value: */ +/* -1 :if there is no pre-auth key in the table */ +/* >= 0 :if there is pre-auth key, and return the entry id */ +/* */ +/* */ + +static int SecIsInPMKIDList(struct rtw_adapter *Adapter, u8 *bssid) +{ + struct security_priv *psecuritypriv = &Adapter->securitypriv; + int i = 0; + + do { + if (psecuritypriv->PMKIDList[i].bUsed && + ether_addr_equal(psecuritypriv->PMKIDList[i].Bssid, bssid)) { + break; + } else { + i++; + /* continue; */ + } + } while (i < NUM_PMKID_CACHE); + + if (i == NUM_PMKID_CACHE) + i = -1;/* Could not find. */ + else { + /* There is one Pre-Authentication Key for + the specific BSSID. */ + } + + return i; +} + +/* */ +/* Check the RSN IE length */ +/* If the RSN IE length <= 20, the RSN IE didn't include + the PMKID information */ +/* 0-11th element in the array are the fixed IE */ +/* 12th element in the array is the IE */ +/* 13th element in the array is the IE length */ +/* */ + +static int rtw_append_pmkid(struct rtw_adapter *Adapter, int iEntry, + u8 *ie, uint ie_len) +{ + struct security_priv *psecuritypriv = &Adapter->securitypriv; + + if (ie[1] <= 20) { + /* The RSN IE didn't include the PMK ID, + append the PMK information */ + ie[ie_len] = 1; + ie_len++; + ie[ie_len] = 0; /* PMKID count = 0x0100 */ + ie_len++; + memcpy(&ie[ie_len], + &psecuritypriv->PMKIDList[iEntry].PMKID, 16); + + ie_len += 16; + ie[1] += 18;/* PMKID length = 2+16 */ + } + return ie_len; +} + +int rtw_restruct_sec_ie23a(struct rtw_adapter *adapter, u8 *in_ie, u8 *out_ie, + uint in_len) +{ + u8 authmode; + uint ielength; + int iEntry; + struct mlme_priv *pmlmepriv = &adapter->mlmepriv; + struct security_priv *psecuritypriv = &adapter->securitypriv; + uint ndisauthmode = psecuritypriv->ndisauthtype; + uint ndissecuritytype = psecuritypriv->ndisencryptstatus; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_notice_, + "+rtw_restruct_sec_ie23a: ndisauthmode=%d ndissecuritytype=%d\n", + ndisauthmode, ndissecuritytype); + + ielength = 0; + if (ndisauthmode == Ndis802_11AuthModeWPA || + ndisauthmode == Ndis802_11AuthModeWPAPSK) + authmode = WLAN_EID_VENDOR_SPECIFIC; + if (ndisauthmode == Ndis802_11AuthModeWPA2 || + ndisauthmode == Ndis802_11AuthModeWPA2PSK) + authmode = WLAN_EID_RSN; + + if (check_fwstate(pmlmepriv, WIFI_UNDER_WPS)) { + memcpy(out_ie + ielength, psecuritypriv->wps_ie, + psecuritypriv->wps_ie_len); + + ielength += psecuritypriv->wps_ie_len; + } else if (authmode == WLAN_EID_VENDOR_SPECIFIC || + authmode == WLAN_EID_RSN) { + /* copy RSN or SSN */ + memcpy(&out_ie[ielength], &psecuritypriv->supplicant_ie[0], + psecuritypriv->supplicant_ie[1] + 2); + ielength += psecuritypriv->supplicant_ie[1] + 2; + } + + iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid); + if (iEntry < 0) + return ielength; + else { + if (authmode == WLAN_EID_RSN) + ielength = rtw_append_pmkid(adapter, iEntry, + out_ie, ielength); + } + + return ielength; +} + +void rtw_init_registrypriv_dev_network23a(struct rtw_adapter *adapter) +{ + struct registry_priv *pregistrypriv = &adapter->registrypriv; + struct eeprom_priv *peepriv = &adapter->eeprompriv; + struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network; + u8 *myhwaddr = myid(peepriv); + + ether_addr_copy(pdev_network->MacAddress, myhwaddr); + + memcpy(&pdev_network->Ssid, &pregistrypriv->ssid, + sizeof(struct cfg80211_ssid)); + + pdev_network->beacon_interval = 100; +} + +void rtw_update_registrypriv_dev_network23a(struct rtw_adapter *adapter) +{ + int sz = 0; + struct registry_priv *pregistrypriv = &adapter->registrypriv; + struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network; + struct security_priv *psecuritypriv = &adapter->securitypriv; + struct wlan_network *cur_network = &adapter->mlmepriv.cur_network; + /* struct xmit_priv *pxmitpriv = &adapter->xmitpriv; */ + + pdev_network->Privacy = + (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); + + pdev_network->Rssi = 0; + + pdev_network->DSConfig = pregistrypriv->channel; + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "pregistrypriv->channel =%d, pdev_network->DSConfig = 0x%x\n", + pregistrypriv->channel, pdev_network->DSConfig); + + if (cur_network->network.ifmode == NL80211_IFTYPE_ADHOC) + pdev_network->ATIMWindow = 0; + + pdev_network->ifmode = cur_network->network.ifmode; + + /* 1. Supported rates */ + /* 2. IE */ + + sz = rtw_generate_ie23a(pregistrypriv); + + pdev_network->IELength = sz; + + pdev_network->Length = + get_wlan_bssid_ex_sz(pdev_network); + + /* notes: translate IELength & Length after assign the + Length to cmdsz in createbss_cmd(); */ + /* pdev_network->IELength = cpu_to_le32(sz); */ +} + +/* the function is at passive_level */ +void rtw_joinbss_reset23a(struct rtw_adapter *padapter) +{ + u8 threshold; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct ht_priv *phtpriv = &pmlmepriv->htpriv; + + /* todo: if you want to do something io/reg/hw setting + before join_bss, please add code here */ + + pmlmepriv->num_FortyMHzIntolerant = 0; + + pmlmepriv->num_sta_no_ht = 0; + + phtpriv->ampdu_enable = false;/* reset to disabled */ + + /* TH = 1 => means that invalidate usb rx aggregation */ + /* TH = 0 => means that validate usb rx aggregation, use init value. */ + if (phtpriv->ht_option) { + if (padapter->registrypriv.wifi_spec == 1) + threshold = 1; + else + threshold = 0; + } else + threshold = 1; + + rtl8723a_set_rxdma_agg_pg_th(padapter, threshold); +} + +/* the function is >= passive_level */ +bool rtw_restructure_ht_ie23a(struct rtw_adapter *padapter, u8 *in_ie, + u8 *out_ie, uint in_len, uint *pout_len) +{ + u32 out_len; + int max_rx_ampdu_factor; + unsigned char *pframe; + const u8 *p; + struct ieee80211_ht_cap ht_capie; + u8 WMM_IE[7] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00}; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct ht_priv *phtpriv = &pmlmepriv->htpriv; + + phtpriv->ht_option = false; + + p = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, in_ie, in_len); + + if (p && p[1] > 0) { + u32 rx_packet_offset, max_recvbuf_sz; + + if (pmlmepriv->qos_option == 0) { + out_len = *pout_len; + pframe = rtw_set_ie23a(out_ie + out_len, + WLAN_EID_VENDOR_SPECIFIC, + sizeof(WMM_IE), WMM_IE, + pout_len); + + pmlmepriv->qos_option = 1; + } + + out_len = *pout_len; + + memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap)); + + ht_capie.cap_info = cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40 | + IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40 | + IEEE80211_HT_CAP_TX_STBC | IEEE80211_HT_CAP_DSSSCCK40); + + GetHalDefVar8192CUsb(padapter, HAL_DEF_RX_PACKET_OFFSET, + &rx_packet_offset); + GetHalDefVar8192CUsb(padapter, HAL_DEF_MAX_RECVBUF_SZ, + &max_recvbuf_sz); + + GetHalDefVar8192CUsb(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, + &max_rx_ampdu_factor); + ht_capie.ampdu_params_info = max_rx_ampdu_factor & 0x03; + + if (padapter->securitypriv.dot11PrivacyAlgrthm == + WLAN_CIPHER_SUITE_CCMP) + ht_capie.ampdu_params_info |= + (IEEE80211_HT_AMPDU_PARM_DENSITY& (0x07 << 2)); + else + ht_capie.ampdu_params_info |= + (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00); + + pframe = rtw_set_ie23a(out_ie + out_len, WLAN_EID_HT_CAPABILITY, + sizeof(struct ieee80211_ht_cap), + (unsigned char *)&ht_capie, pout_len); + + phtpriv->ht_option = true; + + p = cfg80211_find_ie(WLAN_EID_HT_OPERATION, in_ie, in_len); + if (p && (p[1] == sizeof(struct ieee80211_ht_operation))) { + out_len = *pout_len; + pframe = rtw_set_ie23a(out_ie + out_len, + WLAN_EID_HT_OPERATION, + p[1], p + 2 , pout_len); + } + } + + return phtpriv->ht_option; +} + +/* the function is > passive_level (in critical_section) */ +void rtw_update_ht_cap23a(struct rtw_adapter *padapter, u8 *pie, uint ie_len) +{ + u8 max_ampdu_sz; + const u8 *p; + struct ieee80211_ht_cap *pht_capie; + struct ieee80211_ht_operation *pht_addtinfo; + struct mlme_priv *pmlmepriv = &padapter->mlmepriv; + struct ht_priv *phtpriv = &pmlmepriv->htpriv; + struct registry_priv *pregistrypriv = &padapter->registrypriv; + struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; + struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; + + if (!phtpriv->ht_option) + return; + + if ((!pmlmeinfo->HT_info_enable) || (!pmlmeinfo->HT_caps_enable)) + return; + + DBG_8723A("+rtw_update_ht_cap23a()\n"); + + /* maybe needs check if ap supports rx ampdu. */ + if (!phtpriv->ampdu_enable && pregistrypriv->ampdu_enable == 1) { + if (pregistrypriv->wifi_spec == 1) + phtpriv->ampdu_enable = false; + else + phtpriv->ampdu_enable = true; + } else if (pregistrypriv->ampdu_enable == 2) + phtpriv->ampdu_enable = true; + + /* check Max Rx A-MPDU Size */ + p = cfg80211_find_ie(WLAN_EID_HT_CAPABILITY, pie, ie_len); + + if (p && p[1] > 0) { + pht_capie = (struct ieee80211_ht_cap *)(p + 2); + max_ampdu_sz = pht_capie->ampdu_params_info & + IEEE80211_HT_AMPDU_PARM_FACTOR; + /* max_ampdu_sz (kbytes); */ + max_ampdu_sz = 1 << (max_ampdu_sz + 3); + + phtpriv->rx_ampdu_maxlen = max_ampdu_sz; + } + + p = cfg80211_find_ie(WLAN_EID_HT_OPERATION, pie, ie_len); + if (p && p[1] > 0) { + pht_addtinfo = (struct ieee80211_ht_operation *)(p + 2); + /* todo: */ + } + + /* update cur_bwmode & cur_ch_offset */ + if (pregistrypriv->cbw40_enable && + pmlmeinfo->ht_cap.cap_info & + cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40) && + pmlmeinfo->HT_info.ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY) { + int i; + u8 rf_type; + + rf_type = rtl8723a_get_rf_type(padapter); + + /* update the MCS rates */ + for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++) { + if (rf_type == RF_1T1R || rf_type == RF_1T2R) + pmlmeinfo->ht_cap.mcs.rx_mask[i] &= + MCS_rate_1R23A[i]; + else + pmlmeinfo->ht_cap.mcs.rx_mask[i] &= + MCS_rate_2R23A[i]; + } + /* switch to the 40M Hz mode according to the AP */ + pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40; + switch (pmlmeinfo->HT_info.ht_param & + IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: + pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER; + break; + + case IEEE80211_HT_PARAM_CHA_SEC_BELOW: + pmlmeext->cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER; + break; + + default: + pmlmeext->cur_ch_offset = + HAL_PRIME_CHNL_OFFSET_DONT_CARE; + break; + } + } + + /* */ + /* Config SM Power Save setting */ + /* */ + pmlmeinfo->SM_PS = + (le16_to_cpu(pmlmeinfo->ht_cap.cap_info) & + IEEE80211_HT_CAP_SM_PS) >> IEEE80211_HT_CAP_SM_PS_SHIFT; + if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC) + DBG_8723A("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__); + + /* */ + /* Config current HT Protection mode. */ + /* */ + pmlmeinfo->HT_protection = + le16_to_cpu(pmlmeinfo->HT_info.operation_mode) & + IEEE80211_HT_OP_MODE_PROTECTION; +} + +void rtw_issue_addbareq_cmd23a(struct rtw_adapter *padapter, + struct xmit_frame *pxmitframe) +{ + u8 issued; + int priority; + struct sta_info *psta; + struct ht_priv *phtpriv; + struct pkt_attrib *pattrib = &pxmitframe->attrib; + s32 bmcst = is_multicast_ether_addr(pattrib->ra); + + if (bmcst || padapter->mlmepriv.LinkDetectInfo.NumTxOkInPeriod < 100) + return; + + priority = pattrib->priority; + + if (pattrib->psta) + psta = pattrib->psta; + else { + DBG_8723A("%s, call rtw_get_stainfo23a()\n", __func__); + psta = rtw_get_stainfo23a(&padapter->stapriv, pattrib->ra); + } + + if (!psta) { + DBG_8723A("%s, psta == NUL\n", __func__); + return; + } + + if (!(psta->state &_FW_LINKED)) { + DBG_8723A("%s, psta->state(0x%x) != _FW_LINKED\n", + __func__, psta->state); + return; + } + + phtpriv = &psta->htpriv; + + if (phtpriv->ht_option && phtpriv->ampdu_enable) { + issued = (phtpriv->agg_enable_bitmap>>priority)&0x1; + issued |= (phtpriv->candidate_tid_bitmap>>priority)&0x1; + + if (issued == 0) { + DBG_8723A("rtw_issue_addbareq_cmd23a, p =%d\n", + priority); + psta->htpriv.candidate_tid_bitmap |= BIT(priority); + rtw_addbareq_cmd23a(padapter, (u8) priority, + pattrib->ra); + } + } +} + +int rtw_linked_check(struct rtw_adapter *padapter) +{ + if (check_fwstate(&padapter->mlmepriv, WIFI_AP_STATE) || + check_fwstate(&padapter->mlmepriv, + WIFI_ADHOC_STATE|WIFI_ADHOC_MASTER_STATE)) { + if (padapter->stapriv.asoc_sta_count > 2) + return true; + } else { /* Station mode */ + if (check_fwstate(&padapter->mlmepriv, _FW_LINKED)) + return true; + } + return false; +} |