]> git.karo-electronics.de Git - karo-tx-linux.git/blob - include/net/ieee80211_radiotap.h
Merge branch 'drm-fixes-4.11' of git://people.freedesktop.org/~agd5f/linux into drm...
[karo-tx-linux.git] / include / net / ieee80211_radiotap.h
1 /*
2  * Copyright (c) 2017           Intel Deutschland GmbH
3  *
4  * Permission to use, copy, modify, and/or distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 #ifndef __RADIOTAP_H
17 #define __RADIOTAP_H
18
19 #include <linux/kernel.h>
20 #include <asm/unaligned.h>
21
22 /**
23  * struct ieee82011_radiotap_header - base radiotap header
24  */
25 struct ieee80211_radiotap_header {
26         /**
27          * @it_version: radiotap version, always 0
28          */
29         uint8_t it_version;
30
31         /**
32          * @it_pad: padding (or alignment)
33          */
34         uint8_t it_pad;
35
36         /**
37          * @it_len: overall radiotap header length
38          */
39         __le16 it_len;
40
41         /**
42          * @it_present: (first) present word
43          */
44         __le32 it_present;
45 } __packed;
46
47 /* version is always 0 */
48 #define PKTHDR_RADIOTAP_VERSION 0
49
50 /* see the radiotap website for the descriptions */
51 enum ieee80211_radiotap_presence {
52         IEEE80211_RADIOTAP_TSFT = 0,
53         IEEE80211_RADIOTAP_FLAGS = 1,
54         IEEE80211_RADIOTAP_RATE = 2,
55         IEEE80211_RADIOTAP_CHANNEL = 3,
56         IEEE80211_RADIOTAP_FHSS = 4,
57         IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
58         IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
59         IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
60         IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
61         IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
62         IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
63         IEEE80211_RADIOTAP_ANTENNA = 11,
64         IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
65         IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
66         IEEE80211_RADIOTAP_RX_FLAGS = 14,
67         IEEE80211_RADIOTAP_TX_FLAGS = 15,
68         IEEE80211_RADIOTAP_RTS_RETRIES = 16,
69         IEEE80211_RADIOTAP_DATA_RETRIES = 17,
70         /* 18 is XChannel, but it's not defined yet */
71         IEEE80211_RADIOTAP_MCS = 19,
72         IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
73         IEEE80211_RADIOTAP_VHT = 21,
74         IEEE80211_RADIOTAP_TIMESTAMP = 22,
75
76         /* valid in every it_present bitmap, even vendor namespaces */
77         IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29,
78         IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
79         IEEE80211_RADIOTAP_EXT = 31
80 };
81
82 /* for IEEE80211_RADIOTAP_FLAGS */
83 enum ieee80211_radiotap_flags {
84         IEEE80211_RADIOTAP_F_CFP = 0x01,
85         IEEE80211_RADIOTAP_F_SHORTPRE = 0x02,
86         IEEE80211_RADIOTAP_F_WEP = 0x04,
87         IEEE80211_RADIOTAP_F_FRAG = 0x08,
88         IEEE80211_RADIOTAP_F_FCS = 0x10,
89         IEEE80211_RADIOTAP_F_DATAPAD = 0x20,
90         IEEE80211_RADIOTAP_F_BADFCS = 0x40,
91 };
92
93 /* for IEEE80211_RADIOTAP_CHANNEL */
94 enum ieee80211_radiotap_channel_flags {
95         IEEE80211_CHAN_CCK = 0x0020,
96         IEEE80211_CHAN_OFDM = 0x0040,
97         IEEE80211_CHAN_2GHZ = 0x0080,
98         IEEE80211_CHAN_5GHZ = 0x0100,
99         IEEE80211_CHAN_DYN = 0x0400,
100         IEEE80211_CHAN_HALF = 0x4000,
101         IEEE80211_CHAN_QUARTER = 0x8000,
102 };
103
104 /* for IEEE80211_RADIOTAP_RX_FLAGS */
105 enum ieee80211_radiotap_rx_flags {
106         IEEE80211_RADIOTAP_F_RX_BADPLCP = 0x0002,
107 };
108
109 /* for IEEE80211_RADIOTAP_TX_FLAGS */
110 enum ieee80211_radiotap_tx_flags {
111         IEEE80211_RADIOTAP_F_TX_FAIL = 0x0001,
112         IEEE80211_RADIOTAP_F_TX_CTS = 0x0002,
113         IEEE80211_RADIOTAP_F_TX_RTS = 0x0004,
114         IEEE80211_RADIOTAP_F_TX_NOACK = 0x0008,
115 };
116
117 /* for IEEE80211_RADIOTAP_MCS "have" flags */
118 enum ieee80211_radiotap_mcs_have {
119         IEEE80211_RADIOTAP_MCS_HAVE_BW = 0x01,
120         IEEE80211_RADIOTAP_MCS_HAVE_MCS = 0x02,
121         IEEE80211_RADIOTAP_MCS_HAVE_GI = 0x04,
122         IEEE80211_RADIOTAP_MCS_HAVE_FMT = 0x08,
123         IEEE80211_RADIOTAP_MCS_HAVE_FEC = 0x10,
124         IEEE80211_RADIOTAP_MCS_HAVE_STBC = 0x20,
125 };
126
127 enum ieee80211_radiotap_mcs_flags {
128         IEEE80211_RADIOTAP_MCS_BW_MASK = 0x03,
129         IEEE80211_RADIOTAP_MCS_BW_20 = 0,
130         IEEE80211_RADIOTAP_MCS_BW_40 = 1,
131         IEEE80211_RADIOTAP_MCS_BW_20L = 2,
132         IEEE80211_RADIOTAP_MCS_BW_20U = 3,
133
134         IEEE80211_RADIOTAP_MCS_SGI = 0x04,
135         IEEE80211_RADIOTAP_MCS_FMT_GF = 0x08,
136         IEEE80211_RADIOTAP_MCS_FEC_LDPC = 0x10,
137         IEEE80211_RADIOTAP_MCS_STBC_MASK = 0x60,
138         IEEE80211_RADIOTAP_MCS_STBC_1 = 1,
139         IEEE80211_RADIOTAP_MCS_STBC_2 = 2,
140         IEEE80211_RADIOTAP_MCS_STBC_3 = 3,
141         IEEE80211_RADIOTAP_MCS_STBC_SHIFT = 5,
142 };
143
144 /* for IEEE80211_RADIOTAP_AMPDU_STATUS */
145 enum ieee80211_radiotap_ampdu_flags {
146         IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN = 0x0001,
147         IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN = 0x0002,
148         IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN = 0x0004,
149         IEEE80211_RADIOTAP_AMPDU_IS_LAST = 0x0008,
150         IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR = 0x0010,
151         IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN = 0x0020,
152 };
153
154 /* for IEEE80211_RADIOTAP_VHT */
155 enum ieee80211_radiotap_vht_known {
156         IEEE80211_RADIOTAP_VHT_KNOWN_STBC = 0x0001,
157         IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA = 0x0002,
158         IEEE80211_RADIOTAP_VHT_KNOWN_GI = 0x0004,
159         IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS = 0x0008,
160         IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM = 0x0010,
161         IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED = 0x0020,
162         IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH = 0x0040,
163         IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID = 0x0080,
164         IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID = 0x0100,
165 };
166
167 enum ieee80211_radiotap_vht_flags {
168         IEEE80211_RADIOTAP_VHT_FLAG_STBC = 0x01,
169         IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA = 0x02,
170         IEEE80211_RADIOTAP_VHT_FLAG_SGI = 0x04,
171         IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 = 0x08,
172         IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM = 0x10,
173         IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED = 0x20,
174 };
175
176 enum ieee80211_radiotap_vht_coding {
177         IEEE80211_RADIOTAP_CODING_LDPC_USER0 = 0x01,
178         IEEE80211_RADIOTAP_CODING_LDPC_USER1 = 0x02,
179         IEEE80211_RADIOTAP_CODING_LDPC_USER2 = 0x04,
180         IEEE80211_RADIOTAP_CODING_LDPC_USER3 = 0x08,
181 };
182
183 /* for IEEE80211_RADIOTAP_TIMESTAMP */
184 enum ieee80211_radiotap_timestamp_unit_spos {
185         IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MASK = 0x000F,
186         IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MS = 0x0000,
187         IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US = 0x0001,
188         IEEE80211_RADIOTAP_TIMESTAMP_UNIT_NS = 0x0003,
189         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_MASK = 0x00F0,
190         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_BEGIN_MDPU = 0x0000,
191         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ = 0x0010,
192         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_PPDU = 0x0020,
193         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_MPDU = 0x0030,
194         IEEE80211_RADIOTAP_TIMESTAMP_SPOS_UNKNOWN = 0x00F0,
195 };
196
197 enum ieee80211_radiotap_timestamp_flags {
198         IEEE80211_RADIOTAP_TIMESTAMP_FLAG_64BIT = 0x00,
199         IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT = 0x01,
200         IEEE80211_RADIOTAP_TIMESTAMP_FLAG_ACCURACY = 0x02,
201 };
202
203 /**
204  * ieee80211_get_radiotap_len - get radiotap header length
205  */
206 static inline u16 ieee80211_get_radiotap_len(const char *data)
207 {
208         struct ieee80211_radiotap_header *hdr = (void *)data;
209
210         return get_unaligned_le16(&hdr->it_len);
211 }
212
213 #endif /* __RADIOTAP_H */