wow.h

  1/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
  2/* Copyright(c) 2019-2022  Realtek Corporation
  3 */
  4
  5#ifndef __RTW89_WOW_H__
  6#define __RTW89_WOW_H__
  7
  8#define RTW89_KEY_TKIP_PN_IV16 GENMASK_ULL(15, 0)
  9#define RTW89_KEY_TKIP_PN_IV32 GENMASK_ULL(47, 16)
 10
 11#define RTW89_KEY_PN_0 GENMASK_ULL(7, 0)
 12#define RTW89_KEY_PN_1 GENMASK_ULL(15, 8)
 13#define RTW89_KEY_PN_2 GENMASK_ULL(23, 16)
 14#define RTW89_KEY_PN_3 GENMASK_ULL(31, 24)
 15#define RTW89_KEY_PN_4 GENMASK_ULL(39, 32)
 16#define RTW89_KEY_PN_5 GENMASK_ULL(47, 40)
 17
 18#define RTW89_IGTK_IPN_0 GENMASK_ULL(7, 0)
 19#define RTW89_IGTK_IPN_1 GENMASK_ULL(15, 8)
 20#define RTW89_IGTK_IPN_2 GENMASK_ULL(23, 16)
 21#define RTW89_IGTK_IPN_3 GENMASK_ULL(31, 24)
 22#define RTW89_IGTK_IPN_4 GENMASK_ULL(39, 32)
 23#define RTW89_IGTK_IPN_5 GENMASK_ULL(47, 40)
 24#define RTW89_IGTK_IPN_6 GENMASK_ULL(55, 48)
 25#define RTW89_IGTK_IPN_7 GENMASK_ULL(63, 56)
 26
 27#define RTW89_WOW_VALID_CHECK 0xDD
 28#define RTW89_WOW_SYMBOL_CHK_PTK BIT(0)
 29#define RTW89_WOW_SYMBOL_CHK_GTK BIT(1)
 30
 31#define RTW89_MIC_KEY_LEN 8
 32
 33enum rtw89_wake_reason {
 34	RTW89_WOW_RSN_RX_PTK_REKEY = 0x1,
 35	RTW89_WOW_RSN_RX_GTK_REKEY = 0x2,
 36	RTW89_WOW_RSN_RX_DISASSOC = 0x4,
 37	RTW89_WOW_RSN_RX_DEAUTH = 0x8,
 38	RTW89_WOW_RSN_DISCONNECT = 0x10,
 39	RTW89_WOW_RSN_RX_MAGIC_PKT = 0x21,
 40	RTW89_WOW_RSN_RX_PATTERN_MATCH = 0x23,
 41	RTW89_WOW_RSN_RX_NLO = 0x55,
 42};
 43
 44enum rtw89_fw_alg {
 45	RTW89_WOW_FW_ALG_WEP40 = 0x1,
 46	RTW89_WOW_FW_ALG_WEP104 = 0x2,
 47	RTW89_WOW_FW_ALG_TKIP = 0x3,
 48	RTW89_WOW_FW_ALG_CCMP = 0x6,
 49	RTW89_WOW_FW_ALG_CCMP_256 = 0x7,
 50	RTW89_WOW_FW_ALG_GCMP = 0x8,
 51	RTW89_WOW_FW_ALG_GCMP_256 = 0x9,
 52	RTW89_WOW_FW_ALG_AES_CMAC = 0xa,
 53};
 54
 55struct rtw89_cipher_suite {
 56	u8 oui[3];
 57	u8 type;
 58} __packed;
 59
 60struct rtw89_rsn_ie {
 61	u8 tag_number;
 62	u8 tag_length;
 63	__le16 rsn_version;
 64	struct rtw89_cipher_suite group_cipher_suite;
 65	__le16 pairwise_cipher_suite_cnt;
 66	struct rtw89_cipher_suite pairwise_cipher_suite;
 67	__le16 akm_cipher_suite_cnt;
 68	struct rtw89_cipher_suite akm_cipher_suite;
 69} __packed;
 70
 71struct rtw89_cipher_info {
 72	u32 cipher;
 73	u8 fw_alg;
 74	enum ieee80211_key_len len;
 75};
 76
 77struct rtw89_set_key_info_iter_data {
 78	u32 gtk_cipher;
 79	u32 igtk_cipher;
 80	bool rx_ready;
 81	bool error;
 82	bool tkip_gtk_swapped;
 83};
 84
 85static inline int rtw89_wow_get_sec_hdr_len(struct rtw89_dev *rtwdev)
 86{
 87	struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
 88
 89	if (!(rtwdev->chip->chip_id == RTL8852A || rtw89_is_rtl885xb(rtwdev)))
 90		return 0;
 91
 92	switch (rtw_wow->ptk_alg) {
 93	case RTW89_WOW_FW_ALG_WEP40:
 94		return 4;
 95	case RTW89_WOW_FW_ALG_TKIP:
 96	case RTW89_WOW_FW_ALG_CCMP:
 97	case RTW89_WOW_FW_ALG_GCMP_256:
 98		return 8;
 99	default:
100		return 0;
101	}
102}
103
104#ifdef CONFIG_PM
105static inline bool rtw89_wow_mgd_linked(struct rtw89_dev *rtwdev)
106{
107	struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link;
108
109	return rtwvif_link->net_type == RTW89_NET_TYPE_INFRA;
110}
111
112static inline bool rtw89_wow_no_link(struct rtw89_dev *rtwdev)
113{
114	struct rtw89_vif_link *rtwvif_link = rtwdev->wow.rtwvif_link;
115
116	return rtwvif_link->net_type == RTW89_NET_TYPE_NO_LINK;
117}
118
119static inline bool rtw_wow_has_mgd_features(struct rtw89_dev *rtwdev)
120{
121	struct rtw89_wow_param *rtw_wow = &rtwdev->wow;
122
123	return !bitmap_empty(rtw_wow->flags, RTW89_WOW_FLAG_NUM);
124}
125
126void __rtw89_wow_parse_akm(struct rtw89_dev *rtwdev, struct sk_buff *skb);
127
128static inline
129void rtw89_wow_parse_akm(struct rtw89_dev *rtwdev, struct sk_buff *skb)
130{
131	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
132
133	if (likely(!ieee80211_is_assoc_req(hdr->frame_control)))
134		return;
135
136	__rtw89_wow_parse_akm(rtwdev, skb);
137}
138
139int rtw89_wow_suspend(struct rtw89_dev *rtwdev, struct cfg80211_wowlan *wowlan);
140int rtw89_wow_resume(struct rtw89_dev *rtwdev);
141#else
142static inline
143void rtw89_wow_parse_akm(struct rtw89_dev *rtwdev, struct sk_buff *skb)
144{
145}
146#endif
147
148#endif