/******************************************************************************
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*
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* Copyright(c) 2007 - 2017 Realtek Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*****************************************************************************/
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#ifndef __RTW_FT_H_
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#define __RTW_FT_H_
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enum rtw_ieee80211_ft_actioncode {
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RTW_WLAN_ACTION_FT_RESV,
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RTW_WLAN_ACTION_FT_REQ,
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RTW_WLAN_ACTION_FT_RSP,
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RTW_WLAN_ACTION_FT_CONF,
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RTW_WLAN_ACTION_FT_ACK,
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RTW_WLAN_ACTION_FT_MAX,
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};
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enum _rtw_ft_sta_status {
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RTW_FT_UNASSOCIATED_STA = 0,
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RTW_FT_AUTHENTICATING_STA,
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RTW_FT_AUTHENTICATED_STA,
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RTW_FT_ASSOCIATING_STA,
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RTW_FT_ASSOCIATED_STA,
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RTW_FT_REQUESTING_STA,
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RTW_FT_REQUESTED_STA,
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RTW_FT_CONFIRMED_STA,
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RTW_FT_UNSPECIFIED_STA
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};
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#define RTW_FT_ACTION_REQ_LMT 4
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#define RTW_FT_MAX_IE_SZ 256
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#define rtw_ft_chk_status(a, s) \
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((a)->mlmepriv.ft_roam.ft_status == (s))
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#define rtw_ft_roam_status(a, s) \
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((rtw_to_roam(a) > 0) && rtw_ft_chk_status(a, s))
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#define rtw_ft_authed_sta(a) \
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((rtw_ft_chk_status(a, RTW_FT_AUTHENTICATED_STA)) || \
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(rtw_ft_chk_status(a, RTW_FT_ASSOCIATING_STA)) || \
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(rtw_ft_chk_status(a, RTW_FT_ASSOCIATED_STA)))
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#define rtw_ft_set_status(a, s) \
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do { \
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((a)->mlmepriv.ft_roam.ft_status = (s)); \
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} while (0)
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#define rtw_ft_lock_set_status(a, s, irq) \
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do { \
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_enter_critical_bh(&(a)->mlmepriv.lock, ((_irqL *)(irq))); \
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((a)->mlmepriv.ft_roam.ft_status = (s)); \
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_exit_critical_bh(&(a)->mlmepriv.lock, ((_irqL *)(irq))); \
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} while (0)
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#define rtw_ft_reset_status(a) \
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do { \
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((a)->mlmepriv.ft_roam.ft_status = RTW_FT_UNASSOCIATED_STA); \
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} while (0)
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enum rtw_ft_capability {
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RTW_FT_EN = BIT0,
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RTW_FT_OTD_EN = BIT1,
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RTW_FT_PEER_EN = BIT2,
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RTW_FT_PEER_OTD_EN = BIT3,
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RTW_FT_BTM_ROAM = BIT4,
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RTW_FT_TEST_RSSI_ROAM = BIT7,
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};
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#define rtw_ft_chk_flags(a, f) \
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((a)->mlmepriv.ft_roam.ft_flags & (f))
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#define rtw_ft_set_flags(a, f) \
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do { \
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((a)->mlmepriv.ft_roam.ft_flags |= (f)); \
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} while (0)
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#define rtw_ft_clr_flags(a, f) \
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do { \
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((a)->mlmepriv.ft_roam.ft_flags &= ~(f)); \
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} while (0)
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#define rtw_ft_roam(a) \
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((rtw_to_roam(a) > 0) && rtw_ft_chk_flags(a, RTW_FT_PEER_EN))
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#define rtw_ft_valid_akm(a, t) \
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((rtw_ft_chk_flags(a, RTW_FT_EN)) && \
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(((t) == 3) || ((t) == 4) || ((t) == 9)))
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#define rtw_ft_roam_expired(a, r) \
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((rtw_chk_roam_flags(a, RTW_ROAM_ON_EXPIRED)) \
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&& (r == WLAN_REASON_ACTIVE_ROAM))
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#define rtw_ft_otd_roam_en(a) \
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((rtw_ft_chk_flags(a, RTW_FT_OTD_EN)) \
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&& ((a)->mlmepriv.ft_roam.ft_roam_on_expired == _FALSE) \
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&& ((a)->mlmepriv.ft_roam.ft_cap & 0x01))
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#define rtw_ft_otd_roam(a) \
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rtw_ft_chk_flags(a, RTW_FT_PEER_OTD_EN)
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#define rtw_ft_valid_otd_candidate(a, p) \
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((rtw_ft_chk_flags(a, RTW_FT_OTD_EN)) \
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&& ((rtw_ft_chk_flags(a, RTW_FT_PEER_OTD_EN) \
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&& ((*((p)+4) & 0x01) == 0)) \
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|| ((rtw_ft_chk_flags(a, RTW_FT_PEER_OTD_EN) == 0) \
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&& (*((p)+4) & 0x01))))
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struct ft_roam_info {
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u16 mdid;
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u8 ft_cap;
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/*b0: FT over DS, b1: Resource Req Protocol Cap, b2~b7: Reserved*/
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u8 updated_ft_ies[RTW_FT_MAX_IE_SZ];
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u16 updated_ft_ies_len;
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u8 ft_action[RTW_FT_MAX_IE_SZ];
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u16 ft_action_len;
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struct cfg80211_ft_event_params ft_event;
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u8 ft_roam_on_expired;
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u8 ft_flags;
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u32 ft_status;
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u32 ft_req_retry_cnt;
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bool ft_updated_bcn;
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};
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void rtw_ft_info_init(struct ft_roam_info *pft);
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int rtw_ft_proc_flags_get(struct seq_file *m, void *v);
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ssize_t rtw_ft_proc_flags_set(struct file *file, const char __user *buffer,
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size_t count, loff_t *pos, void *data);
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u8 rtw_ft_chk_roaming_candidate(
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_adapter *padapter, struct wlan_network *competitor);
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void rtw_ft_update_stainfo(_adapter *padapter, WLAN_BSSID_EX *pnetwork);
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void rtw_ft_reassoc_event_callback(_adapter *padapter, u8 *pbuf);
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void rtw_ft_validate_akm_type(_adapter *padapter,
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struct wlan_network *pnetwork);
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void rtw_ft_update_bcn(_adapter *padapter, union recv_frame *precv_frame);
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void rtw_ft_start_clnt_join(_adapter *padapter);
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u8 rtw_ft_update_rsnie(
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_adapter *padapter, u8 bwrite,
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struct pkt_attrib *pattrib, u8 **pframe);
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void rtw_ft_build_auth_req_ies(_adapter *padapter,
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struct pkt_attrib *pattrib, u8 **pframe);
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void rtw_ft_build_assoc_req_ies(_adapter *padapter,
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u8 is_reassoc, struct pkt_attrib *pattrib, u8 **pframe);
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u8 rtw_ft_update_auth_rsp_ies(_adapter *padapter, u8 *pframe, u32 len);
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void rtw_ft_start_roam(_adapter *padapter, u8 *pTargetAddr);
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void rtw_ft_issue_action_req(_adapter *padapter, u8 *pTargetAddr);
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void rtw_ft_report_evt(_adapter *padapter);
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void rtw_ft_report_reassoc_evt(_adapter *padapter, u8 *pMacAddr);
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void rtw_ft_link_timer_hdl(void *ctx);
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void rtw_ft_roam_timer_hdl(void *ctx);
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void rtw_ft_roam_status_reset(_adapter *padapter);
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#endif /* __RTW_FT_H_ */
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