1 /*- 2 * Copyright (c) 2020-2025 The FreeBSD Foundation 3 * 4 * This software was developed by Björn Zeeb under sponsorship from 5 * the FreeBSD Foundation. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _LINUXKPI_LINUX_IEEE80211_H 30 #define _LINUXKPI_LINUX_IEEE80211_H 31 32 #include <sys/types.h> 33 #include <net80211/ieee80211.h> 34 35 #include <asm/unaligned.h> 36 #include <linux/kernel.h> 37 #include <linux/bitops.h> 38 #include <linux/bitfield.h> 39 #include <linux/if_ether.h> 40 41 /* linux_80211.c */ 42 extern int linuxkpi_debug_80211; 43 #ifndef D80211_TODO 44 #define D80211_TODO 0x1 45 #endif 46 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \ 47 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__) 48 49 50 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */ 51 struct ieee80211_mmie_16 { 52 uint8_t element_id; 53 uint8_t length; 54 uint16_t key_id; 55 uint8_t ipn[6]; 56 uint8_t mic[16]; 57 }; 58 59 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */ 60 #define IEEE80211_CCMP_PN_LEN 6 61 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */ 62 #define IEEE80211_CCMP_256_HDR_LEN 8 63 #define IEEE80211_CCMP_256_MIC_LEN 16 64 #define IEEE80211_GCMP_HDR_LEN 8 65 #define IEEE80211_GCMP_MIC_LEN 16 66 #define IEEE80211_GCMP_PN_LEN 6 67 #define IEEE80211_GMAC_PN_LEN 6 68 #define IEEE80211_CMAC_PN_LEN 6 69 70 #define IEEE80211_MAX_PN_LEN 16 71 72 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1) 73 74 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX 75 #define IEEE80211_MAX_AMPDU_BUF_HE 256 76 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024 77 78 #define IEEE80211_MAX_FRAME_LEN 2352 79 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN) 80 81 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */ 82 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839 83 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935 84 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895 85 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991 86 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454 87 88 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */ 89 90 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */ 91 92 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */ 93 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f 94 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7) 95 96 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */ 97 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 98 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID 99 #define IEEE80211_QOS_CTL_EOSP 0x0010 100 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 101 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 102 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 103 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 104 105 enum ieee80211_rate_flags { 106 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0), 107 }; 108 109 enum ieee80211_rate_control_changed_flags { 110 IEEE80211_RC_BW_CHANGED = BIT(0), 111 IEEE80211_RC_NSS_CHANGED = BIT(1), 112 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), 113 IEEE80211_RC_SMPS_CHANGED = BIT(3), 114 }; 115 116 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK 117 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK 118 119 #define IEEE80211_TKIP_ICV_LEN 4 120 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */ 121 122 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */ 123 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */ 124 125 /* 126 * 802.11-2020, 9.4.2.157.2 VHT Capabilities Information field, 127 * Table 9-271-Subfields of the VHT Capabilities Information field (continued). 128 */ 129 enum ieee80211_vht_max_ampdu_len_exp { 130 IEEE80211_VHT_MAX_AMPDU_8K = 0, 131 IEEE80211_VHT_MAX_AMPDU_16K = 1, 132 IEEE80211_VHT_MAX_AMPDU_32K = 2, 133 IEEE80211_VHT_MAX_AMPDU_64K = 3, 134 IEEE80211_VHT_MAX_AMPDU_128K = 4, 135 IEEE80211_VHT_MAX_AMPDU_256K = 5, 136 IEEE80211_VHT_MAX_AMPDU_512K = 6, 137 IEEE80211_VHT_MAX_AMPDU_1024K = 7, 138 }; 139 140 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */ 141 #define IEEE80211_WEP_ICV_LEN 4 142 143 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */ 144 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */ 145 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */ 146 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */ 147 148 enum wlan_ht_cap_sm_ps { 149 WLAN_HT_CAP_SM_PS_STATIC = 0, 150 WLAN_HT_CAP_SM_PS_DYNAMIC = 1, 151 WLAN_HT_CAP_SM_PS_INVALID = 2, 152 WLAN_HT_CAP_SM_PS_DISABLED = 3 153 }; 154 155 #define WLAN_MAX_KEY_LEN 32 156 #define WLAN_PMKID_LEN 16 157 #define WLAN_PMK_LEN_SUITE_B_192 48 158 159 enum ieee80211_key_len { 160 WLAN_KEY_LEN_WEP40 = 5, 161 WLAN_KEY_LEN_WEP104 = 13, 162 WLAN_KEY_LEN_TKIP = 32, 163 WLAN_KEY_LEN_CCMP = 16, 164 WLAN_KEY_LEN_CCMP_256 = 32, 165 WLAN_KEY_LEN_GCMP = 16, 166 WLAN_KEY_LEN_AES_CMAC = 16, 167 WLAN_KEY_LEN_GCMP_256 = 32, 168 WLAN_KEY_LEN_BIP_CMAC_256 = 32, 169 WLAN_KEY_LEN_BIP_GMAC_128 = 16, 170 WLAN_KEY_LEN_BIP_GMAC_256 = 32, 171 }; 172 173 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */ 174 enum ieee80211_min_mpdu_start_spacing { 175 IEEE80211_HT_MPDU_DENSITY_NONE = 0, 176 #if 0 177 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */ 178 #endif 179 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */ 180 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */ 181 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */ 182 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */ 183 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */ 184 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */ 185 }; 186 187 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */ 188 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */ 189 190 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK 191 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK 192 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8) 193 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8) 194 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8) 195 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8) 196 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8) 197 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8) 198 199 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT 200 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL 201 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA 202 203 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ 204 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ 205 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ 206 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC 207 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH 208 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH 209 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS 210 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS 211 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION 212 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA 213 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA 214 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL 215 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */ 216 217 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */ 218 219 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */ 220 221 222 /* Figure 9-27, BAR Control field */ 223 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 224 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 225 226 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */ 227 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */ 228 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */ 229 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */ 230 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */ 231 232 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */ 233 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */ 234 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */ 235 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */ 236 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */ 237 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */ 238 239 240 /* 9.6.13.1, Table 9-342 TDLS Action field values. */ 241 enum ieee80211_tdls_action_code { 242 WLAN_TDLS_SETUP_REQUEST = 0, 243 WLAN_TDLS_SETUP_RESPONSE = 1, 244 WLAN_TDLS_SETUP_CONFIRM = 2, 245 WLAN_TDLS_TEARDOWN = 3, 246 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 247 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 248 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 249 WLAN_TDLS_PEER_PSM_REQUEST = 7, 250 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 251 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 252 WLAN_TDLS_DISCOVERY_REQUEST = 10, 253 /* 11-255 reserved */ 254 }; 255 256 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */ 257 /* This is split up into octets CAPA1 = octet 1, ... */ 258 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8) 259 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8) 260 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8) 261 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8) 262 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8) 263 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8) 264 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8) 265 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8) 266 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8) 267 268 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */ 269 270 271 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */ 272 /* Would be so much easier if we'd define constants to the same. */ 273 enum ieee80211_ac_numbers { 274 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */ 275 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */ 276 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */ 277 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */ 278 }; 279 280 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */ 281 282 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1 283 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2 284 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4 285 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8 286 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf 287 288 289 /* Define the LinuxKPI names directly to the net80211 ones. */ 290 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC 291 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40 292 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS 293 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 294 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD 295 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20 296 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40 297 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC 298 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC 299 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S 300 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU 301 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40 302 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT 303 304 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001 305 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002 306 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 307 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c 308 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 309 #define IEEE80211_HT_MCS_MASK_LEN 10 310 311 #define IEEE80211_MLD_MAX_NUM_LINKS 15 312 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS 0xf 313 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060 314 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1 315 316 struct ieee80211_mcs_info { 317 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 318 uint16_t rx_highest; 319 uint8_t tx_params; 320 uint8_t __reserved[3]; 321 } __packed; 322 323 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */ 324 struct ieee80211_ht_cap { 325 uint16_t cap_info; 326 uint8_t ampdu_params_info; 327 struct ieee80211_mcs_info mcs; 328 uint16_t extended_ht_cap_info; 329 uint32_t tx_BF_cap_info; 330 uint8_t antenna_selection_info; 331 } __packed; 332 333 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 334 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16 335 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20 336 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13 337 338 enum ieee80211_ht_max_ampdu_len { 339 IEEE80211_HT_MAX_AMPDU_64K 340 }; 341 342 enum ieee80211_ampdu_mlme_action { 343 IEEE80211_AMPDU_RX_START, 344 IEEE80211_AMPDU_RX_STOP, 345 IEEE80211_AMPDU_TX_OPERATIONAL, 346 IEEE80211_AMPDU_TX_START, 347 IEEE80211_AMPDU_TX_STOP_CONT, 348 IEEE80211_AMPDU_TX_STOP_FLUSH, 349 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT 350 }; 351 352 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1 353 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2 354 355 enum ieee80211_chanctx_switch_mode { 356 CHANCTX_SWMODE_REASSIGN_VIF, 357 CHANCTX_SWMODE_SWAP_CONTEXTS, 358 }; 359 360 enum ieee80211_chanctx_change_flags { 361 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0), 362 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1), 363 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2), 364 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3), 365 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4), 366 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5), 367 IEEE80211_CHANCTX_CHANGE_MIN_DEF = BIT(6), 368 }; 369 370 enum ieee80211_frame_release_type { 371 IEEE80211_FRAME_RELEASE_PSPOLL = 1, 372 IEEE80211_FRAME_RELEASE_UAPSD = 2, 373 }; 374 375 enum ieee80211_p2p_attr_ids { 376 IEEE80211_P2P_ATTR_DEVICE_ID, 377 IEEE80211_P2P_ATTR_DEVICE_INFO, 378 IEEE80211_P2P_ATTR_GROUP_ID, 379 IEEE80211_P2P_ATTR_LISTEN_CHANNEL, 380 IEEE80211_P2P_ATTR_ABSENCE_NOTICE, 381 }; 382 383 enum ieee80211_reconfig_type { 384 IEEE80211_RECONFIG_TYPE_RESTART, 385 IEEE80211_RECONFIG_TYPE_SUSPEND, 386 }; 387 388 enum ieee80211_roc_type { 389 IEEE80211_ROC_TYPE_MGMT_TX, 390 IEEE80211_ROC_TYPE_NORMAL, 391 }; 392 393 enum ieee80211_smps_mode { 394 IEEE80211_SMPS_OFF, 395 IEEE80211_SMPS_STATIC, 396 IEEE80211_SMPS_DYNAMIC, 397 IEEE80211_SMPS_AUTOMATIC, 398 IEEE80211_SMPS_NUM_MODES, 399 }; 400 401 /* net80211::IEEE80211_S_* different but represents the state machine. */ 402 /* Note: order here is important! */ 403 enum ieee80211_sta_state { 404 IEEE80211_STA_NOTEXIST = 0, 405 IEEE80211_STA_NONE = 1, 406 IEEE80211_STA_AUTH = 2, 407 IEEE80211_STA_ASSOC = 3, 408 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */ 409 }; 410 411 enum ieee80211_sta_rx_bandwidth { 412 IEEE80211_STA_RX_BW_20 = 0, 413 IEEE80211_STA_RX_BW_40, 414 IEEE80211_STA_RX_BW_80, 415 IEEE80211_STA_RX_BW_160, 416 IEEE80211_STA_RX_BW_320, 417 }; 418 419 enum ieee80211_tx_info_flags { 420 /* XXX TODO .. right shift numbers - not sure where that came from? */ 421 IEEE80211_TX_CTL_AMPDU = BIT(0), 422 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), 423 IEEE80211_TX_CTL_NO_ACK = BIT(2), 424 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3), 425 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4), 426 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5), 427 IEEE80211_TX_STATUS_EOSP = BIT(6), 428 IEEE80211_TX_STAT_ACK = BIT(7), 429 IEEE80211_TX_STAT_AMPDU = BIT(8), 430 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9), 431 IEEE80211_TX_STAT_TX_FILTERED = BIT(10), 432 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11), 433 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12), 434 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13), 435 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14), 436 IEEE80211_TX_CTL_INJECTED = BIT(15), 437 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16), 438 IEEE80211_TX_CTL_USE_MINRATE = BIT(17), 439 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18), 440 IEEE80211_TX_CTL_LDPC = BIT(19), 441 IEEE80211_TX_CTL_STBC = BIT(20), 442 } __packed; 443 444 enum ieee80211_tx_status_flags { 445 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0), 446 }; 447 448 enum ieee80211_tx_control_flags { 449 /* XXX TODO .. right shift numbers */ 450 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), 451 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1), 452 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2), 453 IEEE80211_TX_CTRL_DONT_USE_RATE_MASK = BIT(3), 454 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */ 455 }; 456 457 enum ieee80211_tx_rate_flags { 458 /* XXX TODO .. right shift numbers */ 459 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0), 460 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1), 461 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2), 462 IEEE80211_TX_RC_GREEN_FIELD = BIT(3), 463 IEEE80211_TX_RC_MCS = BIT(4), 464 IEEE80211_TX_RC_SHORT_GI = BIT(5), 465 IEEE80211_TX_RC_VHT_MCS = BIT(6), 466 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7), 467 }; 468 469 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128 470 471 #define IEEE80211_HT_CTL_LEN 4 472 473 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */ 474 __le16 frame_control; 475 __le16 duration_id; 476 uint8_t addr1[ETH_ALEN]; 477 uint8_t addr2[ETH_ALEN]; 478 uint8_t addr3[ETH_ALEN]; 479 __le16 seq_ctrl; 480 uint8_t addr4[ETH_ALEN]; 481 }; 482 483 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */ 484 __le16 frame_control; 485 __le16 duration_id; 486 uint8_t addr1[ETH_ALEN]; 487 uint8_t addr2[ETH_ALEN]; 488 uint8_t addr3[ETH_ALEN]; 489 __le16 seq_ctrl; 490 }; 491 492 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */ 493 __le16 frame_control; 494 __le16 duration_id; 495 uint8_t addr1[ETH_ALEN]; 496 uint8_t addr2[ETH_ALEN]; 497 uint8_t addr3[ETH_ALEN]; 498 __le16 seq_ctrl; 499 __le16 qos_ctrl; 500 }; 501 502 struct ieee80211_vendor_ie { 503 }; 504 505 /* 802.11-2020, Table 9-359-Block Ack Action field values */ 506 enum ieee80211_back { 507 WLAN_ACTION_ADDBA_REQ = 0, 508 }; 509 510 enum ieee80211_sa_query { 511 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 512 }; 513 514 /* 802.11-2020, Table 9-51-Category values */ 515 enum ieee80211_category { 516 WLAN_CATEGORY_BACK = 3, 517 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */ 518 }; 519 520 /* 80211-2020 9.3.3.2 Format of Management frames */ 521 struct ieee80211_mgmt { 522 __le16 frame_control; 523 __le16 duration_id; 524 uint8_t da[ETH_ALEN]; 525 uint8_t sa[ETH_ALEN]; 526 uint8_t bssid[ETH_ALEN]; 527 __le16 seq_ctrl; 528 union { 529 /* 9.3.3.3 Beacon frame format */ 530 struct { 531 uint64_t timestamp; 532 uint16_t beacon_int; 533 uint16_t capab_info; 534 uint8_t variable[0]; 535 } __packed beacon; 536 /* 9.3.3.5 Association Request frame format */ 537 struct { 538 uint16_t capab_info; 539 uint16_t listen_interval; 540 uint8_t variable[0]; 541 } __packed assoc_req; 542 /* 9.3.3.10 Probe Request frame format */ 543 struct { 544 uint8_t variable[0]; 545 } __packed probe_req; 546 /* 9.3.3.11 Probe Response frame format */ 547 struct { 548 uint64_t timestamp; 549 uint16_t beacon_int; 550 uint16_t capab_info; 551 uint8_t variable[0]; 552 } __packed probe_resp; 553 /* 9.3.3.14 Action frame format */ 554 struct { 555 /* 9.4.1.11 Action field */ 556 uint8_t category; 557 /* 9.6.8 Public Action details */ 558 union { 559 /* 9.6.2.5 TPC Report frame format */ 560 struct { 561 uint8_t spec_mgmt; 562 uint8_t dialog_token; 563 /* uint32_t tpc_rep_elem:: */ 564 uint8_t tpc_elem_id; 565 uint8_t tpc_elem_length; 566 uint8_t tpc_elem_tx_power; 567 uint8_t tpc_elem_link_margin; 568 } __packed tpc_report; 569 /* 9.6.8.33 Fine Timing Measurement frame format */ 570 struct { 571 uint8_t dialog_token; 572 uint8_t follow_up; 573 uint8_t tod[6]; 574 uint8_t toa[6]; 575 uint16_t tod_error; 576 uint16_t toa_error; 577 uint8_t variable[0]; 578 } __packed ftm; 579 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */ 580 struct { 581 uint8_t action_code; 582 uint8_t dialog_token; 583 uint16_t capab; 584 uint16_t timeout; 585 uint16_t start_seq_num; 586 /* Optional follows... */ 587 uint8_t variable[0]; 588 } __packed addba_req; 589 /* XXX */ 590 struct { 591 uint8_t dialog_token; 592 } __packed wnm_timing_msr; 593 } u; 594 } __packed action; 595 DECLARE_FLEX_ARRAY(uint8_t, body); 596 } u; 597 } __packed __aligned(2); 598 599 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */ 600 __le16 frame_control; 601 __le16 duration; 602 uint8_t ra[ETH_ALEN]; 603 } __packed; 604 605 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */ 606 __le16 frame_control; 607 __le16 duration; 608 uint8_t ra[ETH_ALEN]; 609 uint8_t ta[ETH_ALEN]; 610 } __packed; 611 612 #define MHZ_TO_KHZ(_f) ((_f) * 1000) 613 #define DBI_TO_MBI(_g) ((_g) * 100) 614 #define MBI_TO_DBI(_x) ((_x) / 100) 615 #define DBM_TO_MBM(_g) ((_g) * 100) 616 #define MBM_TO_DBM(_x) ((_x) / 100) 617 618 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \ 619 IEEE80211_SEQ_SEQ_SHIFT) 620 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \ 621 IEEE80211_SEQ_SEQ_MASK) 622 623 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */ 624 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024) 625 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu)) 626 627 /* 9.4.2.21.1, Table 9-82. */ 628 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8 629 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11 630 631 /* 9.4.2.1, Table 9-77. Element IDs. */ 632 enum ieee80211_eid { 633 WLAN_EID_SSID = 0, 634 WLAN_EID_SUPP_RATES = 1, 635 WLAN_EID_DS_PARAMS = 3, 636 WLAN_EID_TIM = 5, 637 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */ 638 WLAN_EID_REQUEST = 10, 639 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */ 640 WLAN_EID_CHANNEL_SWITCH = 37, 641 WLAN_EID_MEASURE_REPORT = 39, 642 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */ 643 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */ 644 WLAN_EID_EXT_SUPP_RATES = 50, 645 WLAN_EID_EXT_NON_INHERITANCE = 56, 646 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 647 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */ 648 WLAN_EID_MULTI_BSSID_IDX = 85, 649 WLAN_EID_EXT_CAPABILITY = 127, 650 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */ 651 WLAN_EID_S1G_TWT = 216, 652 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */ 653 }; 654 655 enum ieee80211_eid_ext { 656 WLAN_EID_EXT_HE_CAPABILITY = 35, 657 }; 658 659 #define for_each_element(_elem, _data, _len) \ 660 for (_elem = (const struct element *)(_data); \ 661 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \ 662 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \ 663 _elem = (const struct element *)(_elem->data + _elem->datalen)) 664 665 #define for_each_element_id(_elem, _eid, _data, _len) \ 666 for_each_element(_elem, _data, _len) \ 667 if (_elem->id == (_eid)) 668 669 /* 9.4.1.7, Table 9-45. Reason codes. */ 670 enum ieee80211_reason_code { 671 /* reserved = 0, */ 672 WLAN_REASON_UNSPECIFIED = 1, 673 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */ 674 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25, 675 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26, 676 }; 677 678 /* 9.4.1.9, Table 9-46. Status codes. */ 679 enum ieee80211_status_code { 680 WLAN_STATUS_SUCCESS = 0, 681 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */ 682 }; 683 684 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */ 685 struct ieee80211_trigger { 686 __le16 frame_control; 687 __le16 duration_id; 688 uint8_t ra[ETH_ALEN]; 689 uint8_t ta[ETH_ALEN]; 690 __le64 common_info; /* 8+ really */ 691 uint8_t variable[]; 692 }; 693 694 /* Table 9-29c-Trigger Type subfield encoding */ 695 enum { 696 IEEE80211_TRIGGER_TYPE_BASIC = 0x0, 697 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2, 698 #if 0 699 /* Not seen yet. */ 700 BFRP = 0x1, 701 MU-RTS = 0x3, 702 BSRP = 0x4, 703 GCR MU-BAR = 0x5, 704 BQRP = 0x6, 705 NFRP = 0x7, 706 /* 0x8..0xf reserved */ 707 #endif 708 IEEE80211_TRIGGER_TYPE_MASK = 0xf 709 }; 710 711 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000 712 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0 713 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1 714 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2 715 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3 716 717 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */ 718 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3) 719 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4) 720 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5) 721 722 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */ 723 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3)) 724 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4) 725 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5) 726 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6) 727 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9)) 728 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14)) 729 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15) 730 731 struct ieee80211_twt_params { 732 int mantissa, min_twt_dur, twt; 733 uint16_t req_type; 734 }; 735 736 struct ieee80211_twt_setup { 737 int control; 738 struct ieee80211_twt_params *params; 739 }; 740 741 /* 802.11-2020, Table 9-297-TWT Setup Command field values */ 742 enum ieee80211_twt_setup_cmd { 743 TWT_SETUP_CMD_REQUEST = 0, 744 TWT_SETUP_CMD_SUGGEST = 1, 745 /* DEMAND = 2, */ 746 /* GROUPING = 3, */ 747 TWT_SETUP_CMD_ACCEPT = 4, 748 /* ALTERNATE = 5 */ 749 TWT_SETUP_CMD_DICTATE = 6, 750 TWT_SETUP_CMD_REJECT = 7, 751 }; 752 753 struct ieee80211_bssid_index { 754 int bssid_index; 755 }; 756 757 enum ieee80211_ap_reg_power { 758 IEEE80211_REG_UNSET_AP, 759 IEEE80211_REG_LPI_AP, 760 IEEE80211_REG_SP_AP, 761 IEEE80211_REG_VLP_AP, 762 }; 763 764 /* 765 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield 766 * if Maximum Transmit Power Interpretation subfield is 1 or 3 767 */ 768 #define IEEE80211_MAX_NUM_PWR_LEVEL 8 769 770 /* 771 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 772 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the 773 * United States (2) 774 */ 775 #define IEEE80211_TPE_MAX_IE_NUM 8 776 777 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */ 778 struct ieee80211_tx_pwr_env { 779 uint8_t tx_power_info; 780 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL]; 781 }; 782 783 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */ 784 /* These are field masks (3bit/3bit/2bit). */ 785 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07 786 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38 787 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0 788 789 /* 790 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 791 * encoding 792 */ 793 enum ieee80211_tx_pwr_interpretation_subfield_enc { 794 IEEE80211_TPE_LOCAL_EIRP, 795 IEEE80211_TPE_LOCAL_EIRP_PSD, 796 IEEE80211_TPE_REG_CLIENT_EIRP, 797 IEEE80211_TPE_REG_CLIENT_EIRP_PSD, 798 }; 799 800 enum ieee80211_tx_pwr_category_6ghz { 801 IEEE80211_TPE_CAT_6GHZ_DEFAULT, 802 }; 803 804 /* 802.11-2020, 9.4.2.27 BSS Load element */ 805 struct ieee80211_bss_load_elem { 806 uint16_t sta_count; 807 uint8_t channel_util; 808 uint16_t avail_adm_capa; 809 }; 810 811 struct ieee80211_p2p_noa_desc { 812 uint32_t count; /* uint8_t ? */ 813 uint32_t duration; 814 uint32_t interval; 815 uint32_t start_time; 816 }; 817 818 struct ieee80211_p2p_noa_attr { 819 uint8_t index; 820 uint8_t oppps_ctwindow; 821 struct ieee80211_p2p_noa_desc desc[4]; 822 }; 823 824 825 /* net80211: IEEE80211_IS_CTL() */ 826 static __inline bool 827 ieee80211_is_ctl(__le16 fc) 828 { 829 __le16 v; 830 831 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 832 v = htole16(IEEE80211_FC0_TYPE_CTL); 833 834 return (fc == v); 835 } 836 837 /* net80211: IEEE80211_IS_DATA() */ 838 static __inline bool 839 ieee80211_is_data(__le16 fc) 840 { 841 __le16 v; 842 843 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 844 v = htole16(IEEE80211_FC0_TYPE_DATA); 845 846 return (fc == v); 847 } 848 849 /* net80211: IEEE80211_IS_QOSDATA() */ 850 static __inline bool 851 ieee80211_is_data_qos(__le16 fc) 852 { 853 __le16 v; 854 855 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK); 856 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA); 857 858 return (fc == v); 859 } 860 861 /* net80211: IEEE80211_IS_MGMT() */ 862 static __inline bool 863 ieee80211_is_mgmt(__le16 fc) 864 { 865 __le16 v; 866 867 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 868 v = htole16(IEEE80211_FC0_TYPE_MGT); 869 870 return (fc == v); 871 } 872 873 874 /* Derived from net80211::ieee80211_anyhdrsize. */ 875 static __inline unsigned int 876 ieee80211_hdrlen(__le16 fc) 877 { 878 unsigned int size; 879 880 if (ieee80211_is_ctl(fc)) { 881 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) { 882 case htole16(IEEE80211_FC0_SUBTYPE_CTS): 883 case htole16(IEEE80211_FC0_SUBTYPE_ACK): 884 return sizeof(struct ieee80211_frame_ack); 885 case htole16(IEEE80211_FC0_SUBTYPE_BAR): 886 return sizeof(struct ieee80211_frame_bar); 887 } 888 return (sizeof(struct ieee80211_frame_min)); 889 } 890 891 size = sizeof(struct ieee80211_frame); 892 if (ieee80211_is_data(fc)) { 893 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) == 894 htole16(IEEE80211_FC1_DIR_DSTODS << 8)) 895 size += IEEE80211_ADDR_LEN; 896 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 897 IEEE80211_FC0_TYPE_MASK)) == 898 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 899 IEEE80211_FC0_TYPE_DATA)) 900 size += sizeof(uint16_t); 901 } 902 903 if (ieee80211_is_mgmt(fc)) { 904 #ifdef __notyet__ 905 printf("XXX-BZ %s: TODO? fc %#04x size %u\n", 906 __func__, fc, size); 907 #endif 908 ; 909 } 910 911 return (size); 912 } 913 914 static inline bool 915 ieee80211_is_trigger(__le16 fc) 916 { 917 __le16 v; 918 919 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 920 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL); 921 922 return (fc == v); 923 } 924 925 static __inline bool 926 ieee80211_is_action(__le16 fc) 927 { 928 __le16 v; 929 930 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 931 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT); 932 933 return (fc == v); 934 } 935 936 static __inline bool 937 ieee80211_is_probe_resp(__le16 fc) 938 { 939 __le16 v; 940 941 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 942 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT); 943 944 return (fc == v); 945 } 946 947 static __inline bool 948 ieee80211_is_auth(__le16 fc) 949 { 950 __le16 v; 951 952 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 953 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT); 954 955 return (fc == v); 956 } 957 958 static __inline bool 959 ieee80211_is_assoc_req(__le16 fc) 960 { 961 __le16 v; 962 963 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 964 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 965 966 return (fc == v); 967 } 968 969 static __inline bool 970 ieee80211_is_assoc_resp(__le16 fc) 971 { 972 __le16 v; 973 974 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 975 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 976 977 return (fc == v); 978 } 979 980 static __inline bool 981 ieee80211_is_reassoc_req(__le16 fc) 982 { 983 __le16 v; 984 985 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 986 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 987 988 return (fc == v); 989 } 990 991 static __inline bool 992 ieee80211_is_reassoc_resp(__le16 fc) 993 { 994 __le16 v; 995 996 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 997 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 998 999 return (fc == v); 1000 } 1001 1002 static __inline bool 1003 ieee80211_is_disassoc(__le16 fc) 1004 { 1005 __le16 v; 1006 1007 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1008 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT); 1009 1010 return (fc == v); 1011 } 1012 1013 static __inline bool 1014 ieee80211_is_data_present(__le16 fc) 1015 { 1016 __le16 v; 1017 1018 /* If it is a data frame and NODATA is not present. */ 1019 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA); 1020 v = htole16(IEEE80211_FC0_TYPE_DATA); 1021 1022 return (fc == v); 1023 } 1024 1025 static __inline bool 1026 ieee80211_is_deauth(__le16 fc) 1027 { 1028 __le16 v; 1029 1030 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1031 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT); 1032 1033 return (fc == v); 1034 } 1035 1036 static __inline bool 1037 ieee80211_is_beacon(__le16 fc) 1038 { 1039 __le16 v; 1040 1041 /* 1042 * For as much as I get it this comes in LE and unlike FreeBSD 1043 * where we get the entire frame header and u8[], here we get the 1044 * 9.2.4.1 Frame Control field only. Mask and compare. 1045 */ 1046 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1047 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT); 1048 1049 return (fc == v); 1050 } 1051 1052 1053 static __inline bool 1054 ieee80211_is_probe_req(__le16 fc) 1055 { 1056 __le16 v; 1057 1058 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1059 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT); 1060 1061 return (fc == v); 1062 } 1063 1064 static __inline bool 1065 ieee80211_has_protected(__le16 fc) 1066 { 1067 1068 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8)); 1069 } 1070 1071 static __inline bool 1072 ieee80211_is_back_req(__le16 fc) 1073 { 1074 __le16 v; 1075 1076 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1077 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL); 1078 1079 return (fc == v); 1080 } 1081 1082 static __inline bool 1083 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb) 1084 { 1085 struct ieee80211_mgmt *mgmt; 1086 __le16 fc; 1087 1088 mgmt = (struct ieee80211_mgmt *)skb->data; 1089 fc = mgmt->frame_control; 1090 1091 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */ 1092 /* XXX we do not care about IBSS yet. */ 1093 1094 if (!ieee80211_is_mgmt(fc)) 1095 return (false); 1096 if (ieee80211_is_action(fc)) /* XXX FTM? */ 1097 return (true); /* XXX false? */ 1098 if (ieee80211_is_disassoc(fc)) 1099 return (true); 1100 if (ieee80211_is_deauth(fc)) 1101 return (true); 1102 1103 TODO(); 1104 1105 return (false); 1106 } 1107 1108 static __inline bool 1109 ieee80211_is_nullfunc(__le16 fc) 1110 { 1111 __le16 v; 1112 1113 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1114 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA); 1115 1116 return (fc == v); 1117 } 1118 1119 static __inline bool 1120 ieee80211_is_qos_nullfunc(__le16 fc) 1121 { 1122 __le16 v; 1123 1124 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1125 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA); 1126 1127 return (fc == v); 1128 } 1129 1130 static __inline bool 1131 ieee80211_is_any_nullfunc(__le16 fc) 1132 { 1133 1134 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)); 1135 } 1136 1137 static inline bool 1138 ieee80211_is_pspoll(__le16 fc) 1139 { 1140 __le16 v; 1141 1142 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1143 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL); 1144 1145 return (fc == v); 1146 } 1147 1148 static __inline bool 1149 ieee80211_has_a4(__le16 fc) 1150 { 1151 __le16 v; 1152 1153 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1154 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1155 1156 return (fc == v); 1157 } 1158 1159 static __inline bool 1160 ieee80211_has_order(__le16 fc) 1161 { 1162 1163 return (fc & htole16(IEEE80211_FC1_ORDER << 8)); 1164 } 1165 1166 static __inline bool 1167 ieee80211_has_retry(__le16 fc) 1168 { 1169 1170 return (fc & htole16(IEEE80211_FC1_RETRY << 8)); 1171 } 1172 1173 1174 static __inline bool 1175 ieee80211_has_fromds(__le16 fc) 1176 { 1177 1178 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8)); 1179 } 1180 1181 static __inline bool 1182 ieee80211_has_tods(__le16 fc) 1183 { 1184 1185 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8)); 1186 } 1187 1188 static __inline uint8_t * 1189 ieee80211_get_SA(struct ieee80211_hdr *hdr) 1190 { 1191 1192 if (ieee80211_has_a4(hdr->frame_control)) 1193 return (hdr->addr4); 1194 if (ieee80211_has_fromds(hdr->frame_control)) 1195 return (hdr->addr3); 1196 return (hdr->addr2); 1197 } 1198 1199 static __inline uint8_t * 1200 ieee80211_get_DA(struct ieee80211_hdr *hdr) 1201 { 1202 1203 if (ieee80211_has_tods(hdr->frame_control)) 1204 return (hdr->addr3); 1205 return (hdr->addr1); 1206 } 1207 1208 static __inline bool 1209 ieee80211_is_frag(struct ieee80211_hdr *hdr) 1210 { 1211 TODO(); 1212 return (false); 1213 } 1214 1215 static __inline bool 1216 ieee80211_is_first_frag(__le16 fc) 1217 { 1218 TODO(); 1219 return (false); 1220 } 1221 1222 static __inline bool 1223 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb) 1224 { 1225 TODO(); 1226 return (false); 1227 } 1228 1229 static __inline bool 1230 ieee80211_is_ftm(struct sk_buff *skb) 1231 { 1232 TODO(); 1233 return (false); 1234 } 1235 1236 static __inline bool 1237 ieee80211_is_timing_measurement(struct sk_buff *skb) 1238 { 1239 TODO(); 1240 return (false); 1241 } 1242 1243 static __inline bool 1244 ieee80211_has_pm(__le16 fc) 1245 { 1246 TODO(); 1247 return (false); 1248 } 1249 1250 static __inline bool 1251 ieee80211_has_morefrags(__le16 fc) 1252 { 1253 1254 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8); 1255 return (fc != 0); 1256 } 1257 1258 static __inline u8 * 1259 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1260 { 1261 if (ieee80211_has_a4(hdr->frame_control)) 1262 return (u8 *)hdr + 30; 1263 else 1264 return (u8 *)hdr + 24; 1265 } 1266 1267 #endif /* _LINUXKPI_LINUX_IEEE80211_H */ 1268