1 /* 2 * Copyright (c) 2017 Intel Deutschland GmbH 3 * Copyright (c) 2018 Intel Corporation 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 */ 17 #ifndef __RADIOTAP_H 18 #define __RADIOTAP_H 19 20 #include <linux/kernel.h> 21 #include <asm/unaligned.h> 22 23 /** 24 * struct ieee82011_radiotap_header - base radiotap header 25 */ 26 struct ieee80211_radiotap_header { 27 /** 28 * @it_version: radiotap version, always 0 29 */ 30 uint8_t it_version; 31 32 /** 33 * @it_pad: padding (or alignment) 34 */ 35 uint8_t it_pad; 36 37 /** 38 * @it_len: overall radiotap header length 39 */ 40 __le16 it_len; 41 42 /** 43 * @it_present: (first) present word 44 */ 45 __le32 it_present; 46 } __packed; 47 48 /* version is always 0 */ 49 #define PKTHDR_RADIOTAP_VERSION 0 50 51 /* see the radiotap website for the descriptions */ 52 enum ieee80211_radiotap_presence { 53 IEEE80211_RADIOTAP_TSFT = 0, 54 IEEE80211_RADIOTAP_FLAGS = 1, 55 IEEE80211_RADIOTAP_RATE = 2, 56 IEEE80211_RADIOTAP_CHANNEL = 3, 57 IEEE80211_RADIOTAP_FHSS = 4, 58 IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5, 59 IEEE80211_RADIOTAP_DBM_ANTNOISE = 6, 60 IEEE80211_RADIOTAP_LOCK_QUALITY = 7, 61 IEEE80211_RADIOTAP_TX_ATTENUATION = 8, 62 IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9, 63 IEEE80211_RADIOTAP_DBM_TX_POWER = 10, 64 IEEE80211_RADIOTAP_ANTENNA = 11, 65 IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12, 66 IEEE80211_RADIOTAP_DB_ANTNOISE = 13, 67 IEEE80211_RADIOTAP_RX_FLAGS = 14, 68 IEEE80211_RADIOTAP_TX_FLAGS = 15, 69 IEEE80211_RADIOTAP_RTS_RETRIES = 16, 70 IEEE80211_RADIOTAP_DATA_RETRIES = 17, 71 /* 18 is XChannel, but it's not defined yet */ 72 IEEE80211_RADIOTAP_MCS = 19, 73 IEEE80211_RADIOTAP_AMPDU_STATUS = 20, 74 IEEE80211_RADIOTAP_VHT = 21, 75 IEEE80211_RADIOTAP_TIMESTAMP = 22, 76 IEEE80211_RADIOTAP_HE = 23, 77 IEEE80211_RADIOTAP_HE_MU = 24, 78 IEEE80211_RADIOTAP_ZERO_LEN_PSDU = 26, 79 IEEE80211_RADIOTAP_LSIG = 27, 80 81 /* valid in every it_present bitmap, even vendor namespaces */ 82 IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29, 83 IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30, 84 IEEE80211_RADIOTAP_EXT = 31 85 }; 86 87 /* for IEEE80211_RADIOTAP_FLAGS */ 88 enum ieee80211_radiotap_flags { 89 IEEE80211_RADIOTAP_F_CFP = 0x01, 90 IEEE80211_RADIOTAP_F_SHORTPRE = 0x02, 91 IEEE80211_RADIOTAP_F_WEP = 0x04, 92 IEEE80211_RADIOTAP_F_FRAG = 0x08, 93 IEEE80211_RADIOTAP_F_FCS = 0x10, 94 IEEE80211_RADIOTAP_F_DATAPAD = 0x20, 95 IEEE80211_RADIOTAP_F_BADFCS = 0x40, 96 }; 97 98 /* for IEEE80211_RADIOTAP_CHANNEL */ 99 enum ieee80211_radiotap_channel_flags { 100 IEEE80211_CHAN_CCK = 0x0020, 101 IEEE80211_CHAN_OFDM = 0x0040, 102 IEEE80211_CHAN_2GHZ = 0x0080, 103 IEEE80211_CHAN_5GHZ = 0x0100, 104 IEEE80211_CHAN_DYN = 0x0400, 105 IEEE80211_CHAN_HALF = 0x4000, 106 IEEE80211_CHAN_QUARTER = 0x8000, 107 }; 108 109 /* for IEEE80211_RADIOTAP_RX_FLAGS */ 110 enum ieee80211_radiotap_rx_flags { 111 IEEE80211_RADIOTAP_F_RX_BADPLCP = 0x0002, 112 }; 113 114 /* for IEEE80211_RADIOTAP_TX_FLAGS */ 115 enum ieee80211_radiotap_tx_flags { 116 IEEE80211_RADIOTAP_F_TX_FAIL = 0x0001, 117 IEEE80211_RADIOTAP_F_TX_CTS = 0x0002, 118 IEEE80211_RADIOTAP_F_TX_RTS = 0x0004, 119 IEEE80211_RADIOTAP_F_TX_NOACK = 0x0008, 120 }; 121 122 /* for IEEE80211_RADIOTAP_MCS "have" flags */ 123 enum ieee80211_radiotap_mcs_have { 124 IEEE80211_RADIOTAP_MCS_HAVE_BW = 0x01, 125 IEEE80211_RADIOTAP_MCS_HAVE_MCS = 0x02, 126 IEEE80211_RADIOTAP_MCS_HAVE_GI = 0x04, 127 IEEE80211_RADIOTAP_MCS_HAVE_FMT = 0x08, 128 IEEE80211_RADIOTAP_MCS_HAVE_FEC = 0x10, 129 IEEE80211_RADIOTAP_MCS_HAVE_STBC = 0x20, 130 }; 131 132 enum ieee80211_radiotap_mcs_flags { 133 IEEE80211_RADIOTAP_MCS_BW_MASK = 0x03, 134 IEEE80211_RADIOTAP_MCS_BW_20 = 0, 135 IEEE80211_RADIOTAP_MCS_BW_40 = 1, 136 IEEE80211_RADIOTAP_MCS_BW_20L = 2, 137 IEEE80211_RADIOTAP_MCS_BW_20U = 3, 138 139 IEEE80211_RADIOTAP_MCS_SGI = 0x04, 140 IEEE80211_RADIOTAP_MCS_FMT_GF = 0x08, 141 IEEE80211_RADIOTAP_MCS_FEC_LDPC = 0x10, 142 IEEE80211_RADIOTAP_MCS_STBC_MASK = 0x60, 143 IEEE80211_RADIOTAP_MCS_STBC_1 = 1, 144 IEEE80211_RADIOTAP_MCS_STBC_2 = 2, 145 IEEE80211_RADIOTAP_MCS_STBC_3 = 3, 146 IEEE80211_RADIOTAP_MCS_STBC_SHIFT = 5, 147 }; 148 149 /* for IEEE80211_RADIOTAP_AMPDU_STATUS */ 150 enum ieee80211_radiotap_ampdu_flags { 151 IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN = 0x0001, 152 IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN = 0x0002, 153 IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN = 0x0004, 154 IEEE80211_RADIOTAP_AMPDU_IS_LAST = 0x0008, 155 IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR = 0x0010, 156 IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN = 0x0020, 157 IEEE80211_RADIOTAP_AMPDU_EOF = 0x0040, 158 IEEE80211_RADIOTAP_AMPDU_EOF_KNOWN = 0x0080, 159 }; 160 161 /* for IEEE80211_RADIOTAP_VHT */ 162 enum ieee80211_radiotap_vht_known { 163 IEEE80211_RADIOTAP_VHT_KNOWN_STBC = 0x0001, 164 IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA = 0x0002, 165 IEEE80211_RADIOTAP_VHT_KNOWN_GI = 0x0004, 166 IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS = 0x0008, 167 IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM = 0x0010, 168 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED = 0x0020, 169 IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH = 0x0040, 170 IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID = 0x0080, 171 IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID = 0x0100, 172 }; 173 174 enum ieee80211_radiotap_vht_flags { 175 IEEE80211_RADIOTAP_VHT_FLAG_STBC = 0x01, 176 IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA = 0x02, 177 IEEE80211_RADIOTAP_VHT_FLAG_SGI = 0x04, 178 IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 = 0x08, 179 IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM = 0x10, 180 IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED = 0x20, 181 }; 182 183 enum ieee80211_radiotap_vht_coding { 184 IEEE80211_RADIOTAP_CODING_LDPC_USER0 = 0x01, 185 IEEE80211_RADIOTAP_CODING_LDPC_USER1 = 0x02, 186 IEEE80211_RADIOTAP_CODING_LDPC_USER2 = 0x04, 187 IEEE80211_RADIOTAP_CODING_LDPC_USER3 = 0x08, 188 }; 189 190 /* for IEEE80211_RADIOTAP_TIMESTAMP */ 191 enum ieee80211_radiotap_timestamp_unit_spos { 192 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MASK = 0x000F, 193 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MS = 0x0000, 194 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US = 0x0001, 195 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_NS = 0x0003, 196 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_MASK = 0x00F0, 197 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_BEGIN_MDPU = 0x0000, 198 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ = 0x0010, 199 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_PPDU = 0x0020, 200 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_MPDU = 0x0030, 201 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_UNKNOWN = 0x00F0, 202 }; 203 204 enum ieee80211_radiotap_timestamp_flags { 205 IEEE80211_RADIOTAP_TIMESTAMP_FLAG_64BIT = 0x00, 206 IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT = 0x01, 207 IEEE80211_RADIOTAP_TIMESTAMP_FLAG_ACCURACY = 0x02, 208 }; 209 210 struct ieee80211_radiotap_he { 211 __le16 data1, data2, data3, data4, data5, data6; 212 }; 213 214 enum ieee80211_radiotap_he_bits { 215 IEEE80211_RADIOTAP_HE_DATA1_FORMAT_MASK = 3, 216 IEEE80211_RADIOTAP_HE_DATA1_FORMAT_SU = 0, 217 IEEE80211_RADIOTAP_HE_DATA1_FORMAT_EXT_SU = 1, 218 IEEE80211_RADIOTAP_HE_DATA1_FORMAT_MU = 2, 219 IEEE80211_RADIOTAP_HE_DATA1_FORMAT_TRIG = 3, 220 221 IEEE80211_RADIOTAP_HE_DATA1_BSS_COLOR_KNOWN = 0x0004, 222 IEEE80211_RADIOTAP_HE_DATA1_BEAM_CHANGE_KNOWN = 0x0008, 223 IEEE80211_RADIOTAP_HE_DATA1_UL_DL_KNOWN = 0x0010, 224 IEEE80211_RADIOTAP_HE_DATA1_DATA_MCS_KNOWN = 0x0020, 225 IEEE80211_RADIOTAP_HE_DATA1_DATA_DCM_KNOWN = 0x0040, 226 IEEE80211_RADIOTAP_HE_DATA1_CODING_KNOWN = 0x0080, 227 IEEE80211_RADIOTAP_HE_DATA1_LDPC_XSYMSEG_KNOWN = 0x0100, 228 IEEE80211_RADIOTAP_HE_DATA1_STBC_KNOWN = 0x0200, 229 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE_KNOWN = 0x0400, 230 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE2_KNOWN = 0x0800, 231 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE3_KNOWN = 0x1000, 232 IEEE80211_RADIOTAP_HE_DATA1_SPTL_REUSE4_KNOWN = 0x2000, 233 IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN = 0x4000, 234 IEEE80211_RADIOTAP_HE_DATA1_DOPPLER_KNOWN = 0x8000, 235 236 IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_KNOWN = 0x0001, 237 IEEE80211_RADIOTAP_HE_DATA2_GI_KNOWN = 0x0002, 238 IEEE80211_RADIOTAP_HE_DATA2_NUM_LTF_SYMS_KNOWN = 0x0004, 239 IEEE80211_RADIOTAP_HE_DATA2_PRE_FEC_PAD_KNOWN = 0x0008, 240 IEEE80211_RADIOTAP_HE_DATA2_TXBF_KNOWN = 0x0010, 241 IEEE80211_RADIOTAP_HE_DATA2_PE_DISAMBIG_KNOWN = 0x0020, 242 IEEE80211_RADIOTAP_HE_DATA2_TXOP_KNOWN = 0x0040, 243 IEEE80211_RADIOTAP_HE_DATA2_MIDAMBLE_KNOWN = 0x0080, 244 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET = 0x3f00, 245 IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET_KNOWN = 0x4000, 246 IEEE80211_RADIOTAP_HE_DATA2_PRISEC_80_SEC = 0x8000, 247 248 IEEE80211_RADIOTAP_HE_DATA3_BSS_COLOR = 0x003f, 249 IEEE80211_RADIOTAP_HE_DATA3_BEAM_CHANGE = 0x0040, 250 IEEE80211_RADIOTAP_HE_DATA3_UL_DL = 0x0080, 251 IEEE80211_RADIOTAP_HE_DATA3_DATA_MCS = 0x0f00, 252 IEEE80211_RADIOTAP_HE_DATA3_DATA_DCM = 0x1000, 253 IEEE80211_RADIOTAP_HE_DATA3_CODING = 0x2000, 254 IEEE80211_RADIOTAP_HE_DATA3_LDPC_XSYMSEG = 0x4000, 255 IEEE80211_RADIOTAP_HE_DATA3_STBC = 0x8000, 256 257 IEEE80211_RADIOTAP_HE_DATA4_SU_MU_SPTL_REUSE = 0x000f, 258 IEEE80211_RADIOTAP_HE_DATA4_MU_STA_ID = 0x7ff0, 259 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE1 = 0x000f, 260 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE2 = 0x00f0, 261 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE3 = 0x0f00, 262 IEEE80211_RADIOTAP_HE_DATA4_TB_SPTL_REUSE4 = 0xf000, 263 264 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC = 0x000f, 265 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_20MHZ = 0, 266 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_40MHZ = 1, 267 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_80MHZ = 2, 268 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_160MHZ = 3, 269 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_26T = 4, 270 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_52T = 5, 271 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_106T = 6, 272 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_242T = 7, 273 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_484T = 8, 274 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_996T = 9, 275 IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC_2x996T = 10, 276 277 IEEE80211_RADIOTAP_HE_DATA5_GI = 0x0030, 278 IEEE80211_RADIOTAP_HE_DATA5_GI_0_8 = 0, 279 IEEE80211_RADIOTAP_HE_DATA5_GI_1_6 = 1, 280 IEEE80211_RADIOTAP_HE_DATA5_GI_3_2 = 2, 281 282 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE = 0x00c0, 283 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_UNKNOWN = 0, 284 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_1X = 1, 285 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_2X = 2, 286 IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE_4X = 3, 287 IEEE80211_RADIOTAP_HE_DATA5_NUM_LTF_SYMS = 0x0700, 288 IEEE80211_RADIOTAP_HE_DATA5_PRE_FEC_PAD = 0x3000, 289 IEEE80211_RADIOTAP_HE_DATA5_TXBF = 0x4000, 290 IEEE80211_RADIOTAP_HE_DATA5_PE_DISAMBIG = 0x8000, 291 292 IEEE80211_RADIOTAP_HE_DATA6_NSTS = 0x000f, 293 IEEE80211_RADIOTAP_HE_DATA6_DOPPLER = 0x0010, 294 IEEE80211_RADIOTAP_HE_DATA6_TXOP = 0x7f00, 295 IEEE80211_RADIOTAP_HE_DATA6_MIDAMBLE_PDCTY = 0x8000, 296 }; 297 298 struct ieee80211_radiotap_he_mu { 299 __le16 flags1, flags2; 300 u8 ru_ch1[4]; 301 u8 ru_ch2[4]; 302 }; 303 304 enum ieee80211_radiotap_he_mu_bits { 305 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS = 0x000f, 306 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_MCS_KNOWN = 0x0010, 307 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM = 0x0020, 308 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_DCM_KNOWN = 0x0040, 309 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_CTR_26T_RU_KNOWN = 0x0080, 310 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_RU_KNOWN = 0x0100, 311 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH2_RU_KNOWN = 0x0200, 312 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU_KNOWN = 0x1000, 313 IEEE80211_RADIOTAP_HE_MU_FLAGS1_CH1_CTR_26T_RU = 0x2000, 314 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_COMP_KNOWN = 0x4000, 315 IEEE80211_RADIOTAP_HE_MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN = 0x8000, 316 317 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW = 0x0003, 318 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_20MHZ = 0x0000, 319 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_40MHZ = 0x0001, 320 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_80MHZ = 0x0002, 321 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_160MHZ = 0x0003, 322 IEEE80211_RADIOTAP_HE_MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN = 0x0004, 323 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_COMP = 0x0008, 324 IEEE80211_RADIOTAP_HE_MU_FLAGS2_SIG_B_SYMS_USERS = 0x00f0, 325 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW = 0x0300, 326 IEEE80211_RADIOTAP_HE_MU_FLAGS2_PUNC_FROM_SIG_A_BW_KNOWN= 0x0400, 327 IEEE80211_RADIOTAP_HE_MU_FLAGS2_CH2_CTR_26T_RU = 0x0800, 328 }; 329 330 enum ieee80211_radiotap_lsig_data1 { 331 IEEE80211_RADIOTAP_LSIG_DATA1_RATE_KNOWN = 0x0001, 332 IEEE80211_RADIOTAP_LSIG_DATA1_LENGTH_KNOWN = 0x0002, 333 }; 334 335 enum ieee80211_radiotap_lsig_data2 { 336 IEEE80211_RADIOTAP_LSIG_DATA2_RATE = 0x000f, 337 IEEE80211_RADIOTAP_LSIG_DATA2_LENGTH = 0xfff0, 338 }; 339 340 struct ieee80211_radiotap_lsig { 341 __le16 data1, data2; 342 }; 343 344 enum ieee80211_radiotap_zero_len_psdu_type { 345 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING = 0, 346 IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR = 0xff, 347 }; 348 349 /** 350 * ieee80211_get_radiotap_len - get radiotap header length 351 */ 352 static inline u16 ieee80211_get_radiotap_len(const char *data) 353 { 354 struct ieee80211_radiotap_header *hdr = (void *)data; 355 356 return get_unaligned_le16(&hdr->it_len); 357 } 358 359 #endif /* __RADIOTAP_H */ 360