1 /* SPDX-License-Identifier: GPL-2.0 */
2 /******************************************************************************
3  *
4  * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
5  *
6  * Modifications for inclusion into the Linux staging tree are
7  * Copyright(c) 2010 Larry Finger. All rights reserved.
8  *
9  * Contact information:
10  * WLAN FAE <wlanfae@realtek.com>
11  * Larry Finger <Larry.Finger@lwfinger.net>
12  *
13  ******************************************************************************/
14 #ifndef __IEEE80211_H
15 #define __IEEE80211_H
16 
17 #include <linux/ieee80211.h>
18 
19 #define IEEE_CMD_SET_WPA_PARAM			1
20 #define IEEE_CMD_SET_WPA_IE			2
21 #define IEEE_CMD_SET_ENCRYPTION			3
22 #define IEEE_CMD_MLME				4
23 
24 #define IEEE_PARAM_WPA_ENABLED			1
25 #define IEEE_PARAM_TKIP_COUNTERMEASURES		2
26 #define IEEE_PARAM_DROP_UNENCRYPTED		3
27 #define IEEE_PARAM_PRIVACY_INVOKED		4
28 #define IEEE_PARAM_AUTH_ALGS			5
29 #define IEEE_PARAM_IEEE_802_1X			6
30 #define IEEE_PARAM_WPAX_SELECT			7
31 
32 #define AUTH_ALG_OPEN_SYSTEM			0x1
33 #define AUTH_ALG_SHARED_KEY			0x2
34 #define AUTH_ALG_LEAP				0x00000004
35 
36 #define IEEE_MLME_STA_DEAUTH			1
37 #define IEEE_MLME_STA_DISASSOC			2
38 
39 #define IEEE_CRYPT_ERR_UNKNOWN_ALG		2
40 #define IEEE_CRYPT_ERR_UNKNOWN_ADDR		3
41 #define IEEE_CRYPT_ERR_CRYPT_INIT_FAILED	4
42 #define IEEE_CRYPT_ERR_KEY_SET_FAILED		5
43 #define IEEE_CRYPT_ERR_TX_KEY_SET_FAILED	6
44 #define IEEE_CRYPT_ERR_CARD_CONF_FAILED		7
45 
46 #define	IEEE_CRYPT_ALG_NAME_LEN			16
47 
48 #define WPA_CIPHER_NONE				BIT(0)
49 #define WPA_CIPHER_WEP40			BIT(1)
50 #define WPA_CIPHER_WEP104			BIT(2)
51 #define WPA_CIPHER_TKIP				BIT(3)
52 #define WPA_CIPHER_CCMP				BIT(4)
53 
54 #define WPA_SELECTOR_LEN			4
55 #define RSN_HEADER_LEN				4
56 
57 #define RSN_SELECTOR_LEN 4
58 
59 enum NETWORK_TYPE {
60 	WIRELESS_INVALID	= 0,
61 	WIRELESS_11B		= 1,
62 	WIRELESS_11G		= 2,
63 	WIRELESS_11BG		= (WIRELESS_11B | WIRELESS_11G),
64 	WIRELESS_11A		= 4,
65 	WIRELESS_11N		= 8,
66 	WIRELESS_11GN		= (WIRELESS_11G | WIRELESS_11N),
67 	WIRELESS_11BGN		= (WIRELESS_11B | WIRELESS_11G | WIRELESS_11N),
68 };
69 
70 struct ieee_param {
71 	u32 cmd;
72 	u8 sta_addr[ETH_ALEN];
73 	union {
74 		struct {
75 			u8 name;
76 			u32 value;
77 		} wpa_param;
78 		struct {
79 			u32 len;
80 			u8 reserved[32];
81 			u8 data[];
82 		} wpa_ie;
83 		struct {
84 			int command;
85 			int reason_code;
86 		} mlme;
87 		struct {
88 			u8 alg[IEEE_CRYPT_ALG_NAME_LEN];
89 			u8 set_tx;
90 			u32 err;
91 			u8 idx;
92 			u8 seq[8]; /* sequence counter (set: RX, get: TX) */
93 			u16 key_len;
94 			u8 key[];
95 		} crypt;
96 	} u;
97 };
98 
99 #define MIN_FRAG_THRESHOLD     256U
100 #define	MAX_FRAG_THRESHOLD     2346U
101 
102 /* QoS,QOS */
103 #define NORMAL_ACK			0
104 
105 /* IEEE 802.11 defines */
106 
107 #define P80211_OUI_LEN 3
108 
109 struct ieee80211_snap_hdr {
110 	u8    dsap;   /* always 0xAA */
111 	u8    ssap;   /* always 0xAA */
112 	u8    ctrl;   /* always 0x03 */
113 	u8    oui[P80211_OUI_LEN];    /* organizational universal id */
114 } __packed;
115 
116 #define SNAP_SIZE sizeof(struct ieee80211_snap_hdr)
117 
118 #define IEEE80211_CCK_RATE_LEN			4
119 #define IEEE80211_NUM_OFDM_RATESLEN	8
120 
121 #define IEEE80211_CCK_RATE_1MB		        0x02
122 #define IEEE80211_CCK_RATE_2MB		        0x04
123 #define IEEE80211_CCK_RATE_5MB		        0x0B
124 #define IEEE80211_CCK_RATE_11MB		        0x16
125 #define IEEE80211_OFDM_RATE_6MB		        0x0C
126 #define IEEE80211_OFDM_RATE_9MB		        0x12
127 #define IEEE80211_OFDM_RATE_12MB		0x18
128 #define IEEE80211_OFDM_RATE_18MB		0x24
129 #define IEEE80211_OFDM_RATE_24MB		0x30
130 #define IEEE80211_OFDM_RATE_36MB		0x48
131 #define IEEE80211_OFDM_RATE_48MB		0x60
132 #define IEEE80211_OFDM_RATE_54MB		0x6C
133 #define IEEE80211_BASIC_RATE_MASK		0x80
134 
135 #define WEP_KEYS 4
136 
137 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
138  * only use 8, and then use extended rates for the remaining supported
139  * rates.  Other APs, however, stick all of their supported rates on the
140  * main rates information element...
141  */
142 #define MAX_RATES_LENGTH                  ((u8)12)
143 #define MAX_WPA_IE_LEN 128
144 
145 struct registry_priv;
146 
147 u8 *r8712_set_ie(u8 *pbuf, sint index, uint len, u8 *source, uint *frlen);
148 u8 *r8712_get_ie(u8 *pbuf, sint index, uint *len, sint limit);
149 unsigned char *r8712_get_wpa_ie(unsigned char *pie, uint *rsn_ie_len,
150 				int limit);
151 unsigned char *r8712_get_wpa2_ie(unsigned char *pie, uint *rsn_ie_len,
152 				 int limit);
153 int r8712_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
154 		       int *pairwise_cipher);
155 int r8712_parse_wpa2_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher,
156 			int *pairwise_cipher);
157 int r8712_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len,
158 		     u8 *wpa_ie, u16 *wpa_len);
159 int r8712_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen);
160 int r8712_generate_ie(struct registry_priv *pregistrypriv);
161 uint r8712_is_cckrates_included(u8 *rate);
162 uint r8712_is_cckratesonly_included(u8 *rate);
163 
164 #endif /* IEEE80211_H */
165 
166