1 /******************************************************************************
3 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
19 ******************************************************************************/
28 /* TDLS Diect Link Establishment */
29 #define TDLS_STATE_NONE 0x00000000 /* Default state */
30 #define TDLS_INITIATOR_STATE BIT(28) /* 0x10000000 */
31 #define TDLS_RESPONDER_STATE BIT(29) /* 0x20000000 */
32 #define TDLS_LINKED_STATE BIT(30) /* 0x40000000 */
33 /* TDLS PU Buffer STA */
34 #define TDLS_WAIT_PTR_STATE BIT(24) /* 0x01000000 */ /* Waiting peer's TDLS_PEER_TRAFFIC_RESPONSE frame */
35 /* TDLS Check ALive */
36 #define TDLS_ALIVE_STATE BIT(20) /* 0x00100000 */ /* Check if peer sta is alived. */
37 /* TDLS Channel Switch */
38 #define TDLS_CH_SWITCH_PREPARE_STATE BIT(15) /* 0x00008000 */
39 #define TDLS_CH_SWITCH_ON_STATE BIT(16) /* 0x00010000 */
40 #define TDLS_PEER_AT_OFF_STATE BIT(17) /* 0x00020000 */ /* Could send pkt on target ch */
41 #define TDLS_CH_SW_INITIATOR_STATE BIT(18) /* 0x00040000 */ /* Avoid duplicated or unconditional ch. switch rsp. */
42 #define TDLS_WAIT_CH_RSP_STATE BIT(19) /* 0x00080000 */ /* Wait Ch. response as we are TDLS channel switch initiator */
45 #define TDLS_TPK_RESEND_COUNT 86400 /*Unit: seconds */
46 #define TDLS_CH_SWITCH_TIME 15
47 #define TDLS_CH_SWITCH_TIMEOUT 30
48 #define TDLS_CH_SWITCH_OPER_OFFLOAD_TIMEOUT 10
49 #define TDLS_SIGNAL_THRESH 0x20
50 #define TDLS_WATCHDOG_PERIOD 10 /* Periodically sending tdls discovery request in TDLS_WATCHDOG_PERIOD * 2 sec */
51 #define TDLS_HANDSHAKE_TIME 3000
52 #define TDLS_PTI_TIME 7000
54 #define TDLS_CH_SW_STAY_ON_BASE_CHNL_TIMEOUT 20 /* ms */
55 #define TDLS_CH_SW_MONITOR_TIMEOUT 2000 /*ms */
57 #define TDLS_MIC_LEN 16
58 #define WPA_NONCE_LEN 32
59 #define TDLS_TIMEOUT_LEN 4
61 enum TDLS_CH_SW_CHNL {
62 TDLS_CH_SW_BASE_CHNL = 0,
66 struct wpa_tdls_ftie {
67 u8 ie_type; /* FTIE */
71 u8 Anonce[WPA_NONCE_LEN]; /* Responder Nonce in TDLS */
72 u8 Snonce[WPA_NONCE_LEN]; /* Initiator Nonce in TDLS */
73 /* followed by optional elements */
76 struct wpa_tdls_lnkid {
77 u8 ie_type; /* Link Identifier IE */
80 u8 init_sta[ETH_ALEN];
81 u8 resp_sta[ETH_ALEN];
84 static u8 TDLS_RSNIE[20] = { 0x01, 0x00, /* Version shall be set to 1 */
85 0x00, 0x0f, 0xac, 0x07, /* Group sipher suite */
86 0x01, 0x00, /* Pairwise cipher suite count */
87 0x00, 0x0f, 0xac, 0x04, /* Pairwise cipher suite list; CCMP only */
88 0x01, 0x00, /* AKM suite count */
89 0x00, 0x0f, 0xac, 0x07, /* TPK Handshake */
91 /* PMKID shall not be present */
94 static u8 TDLS_WMMIE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00}; /* Qos info all set zero */
96 static u8 TDLS_WMM_PARAM_IE[] = {0x00, 0x00, 0x03, 0xa4, 0x00, 0x00, 0x27, 0xa4, 0x00, 0x00, 0x42, 0x43, 0x5e, 0x00, 0x62, 0x32, 0x2f, 0x00};
98 static u8 TDLS_EXT_CAPIE[] = {0x00, 0x00, 0x00, 0x50, 0x20, 0x00, 0x00, 0x00}; /* bit(28), bit(30), bit(37) */
100 /* SRC: Supported Regulatory Classes */
101 static u8 TDLS_SRC[] = { 0x01, 0x01, 0x02, 0x03, 0x04, 0x0c, 0x16, 0x17, 0x18, 0x19, 0x1b, 0x1c, 0x1d, 0x1e, 0x20, 0x21 };
103 int check_ap_tdls_prohibited(u8 *pframe, u8 pkt_len);
104 int check_ap_tdls_ch_switching_prohibited(u8 *pframe, u8 pkt_len);
106 u8 rtw_tdls_is_setup_allowed(_adapter *padapter);
107 #ifdef CONFIG_TDLS_CH_SW
108 u8 rtw_tdls_is_chsw_allowed(_adapter *padapter);
111 void rtw_reset_tdls_info(_adapter *padapter);
112 int rtw_init_tdls_info(_adapter *padapter);
113 void rtw_free_tdls_info(struct tdls_info *ptdlsinfo);
114 int issue_nulldata_to_TDLS_peer_STA(_adapter *padapter, unsigned char *da, unsigned int power_mode, int try_cnt, int wait_ms);
115 void rtw_init_tdls_timer(_adapter *padapter, struct sta_info *psta);
116 void rtw_free_tdls_timer(struct sta_info *psta);
117 void free_tdls_sta(_adapter *padapter, struct sta_info *ptdls_sta);
119 #ifdef CONFIG_TDLS_CH_SW
120 void rtw_tdls_set_ch_sw_oper_control(_adapter *padapter, u8 enable);
121 void rtw_tdls_ch_sw_back_to_base_chnl(_adapter *padapter);
122 s32 rtw_tdls_do_ch_sw(_adapter *padapter, struct sta_info *ptdls_sta, u8 chnl_type, u8 channel, u8 channel_offset, u16 bwmode, u16 ch_switch_time);
123 void rtw_tdls_chsw_oper_done(_adapter *padapter);
127 int issue_tunneled_probe_req(_adapter *padapter);
128 int issue_tunneled_probe_rsp(_adapter *padapter, union recv_frame *precv_frame);
129 #endif /* CONFIG_WFD */
130 int issue_tdls_dis_req(_adapter *padapter, struct tdls_txmgmt *ptxmgmt);
131 int issue_tdls_setup_req(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, int wait_ack);
132 int issue_tdls_setup_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt);
133 int issue_tdls_setup_cfm(_adapter *padapter, struct tdls_txmgmt *ptxmgmt);
134 int issue_tdls_dis_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, u8 privacy);
135 int issue_tdls_teardown(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, u8 wait_ack);
136 int issue_tdls_peer_traffic_rsp(_adapter *padapter, struct sta_info *psta, struct tdls_txmgmt *ptxmgmt);
137 int issue_tdls_peer_traffic_indication(_adapter *padapter, struct sta_info *psta);
138 #ifdef CONFIG_TDLS_CH_SW
139 int issue_tdls_ch_switch_req(_adapter *padapter, struct sta_info *ptdls_sta);
140 int issue_tdls_ch_switch_rsp(_adapter *padapter, struct tdls_txmgmt *ptxmgmt, int wait_ack);
142 sint On_TDLS_Dis_Rsp(_adapter *adapter, union recv_frame *precv_frame);
143 sint On_TDLS_Setup_Req(_adapter *adapter, union recv_frame *precv_frame);
144 int On_TDLS_Setup_Rsp(_adapter *adapter, union recv_frame *precv_frame);
145 int On_TDLS_Setup_Cfm(_adapter *adapter, union recv_frame *precv_frame);
146 int On_TDLS_Dis_Req(_adapter *adapter, union recv_frame *precv_frame);
147 int On_TDLS_Teardown(_adapter *adapter, union recv_frame *precv_frame);
148 int On_TDLS_Peer_Traffic_Indication(_adapter *adapter, union recv_frame *precv_frame);
149 int On_TDLS_Peer_Traffic_Rsp(_adapter *adapter, union recv_frame *precv_frame);
150 #ifdef CONFIG_TDLS_CH_SW
151 sint On_TDLS_Ch_Switch_Req(_adapter *adapter, union recv_frame *precv_frame);
152 sint On_TDLS_Ch_Switch_Rsp(_adapter *adapter, union recv_frame *precv_frame);
153 void rtw_build_tdls_ch_switch_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
154 void rtw_build_tdls_ch_switch_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
156 void rtw_build_tdls_setup_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
157 void rtw_build_tdls_setup_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
158 void rtw_build_tdls_setup_cfm_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
159 void rtw_build_tdls_teardown_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
160 void rtw_build_tdls_dis_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
161 void rtw_build_tdls_dis_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt, u8 privacy);
162 void rtw_build_tdls_peer_traffic_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
163 void rtw_build_tdls_peer_traffic_indication_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe, struct tdls_txmgmt *ptxmgmt);
164 void rtw_build_tunneled_probe_req_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe);
165 void rtw_build_tunneled_probe_rsp_ies(_adapter *padapter, struct xmit_frame *pxmitframe, u8 *pframe);
167 u32 update_mask_tdls(_adapter *padapter, struct sta_info *psta);
168 int rtw_tdls_is_driver_setup(_adapter *padapter);
169 void rtw_tdls_set_key(_adapter *padapter, struct sta_info *ptdls_sta);
170 const char *rtw_tdls_action_txt(enum TDLS_ACTION_FIELD action);
171 #endif /* CONFIG_TDLS */