1 /*- 2 * Copyright (c) 2020-2026 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 #ifndef D80211_IMPROVE 47 #define D80211_IMPROVE 0x2 48 #endif 49 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \ 50 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__) 51 #define IMPROVE(fmt, ...) if (linuxkpi_debug_80211 & D80211_IMPROVE) \ 52 printf("%s:%d: XXX LKPI80211 IMPROVE " fmt "\n", __func__, __LINE__, ##__VA_ARGS__) 53 54 /* 802.11-2024, 9.4.2.53 MME. */ 55 /* BIP-CMAC-128 */ 56 struct ieee80211_mmie { 57 uint8_t element_id; 58 uint8_t length; 59 uint16_t key_id; 60 uint8_t ipn[6]; 61 uint8_t mic[8]; 62 }; 63 /* BIP-CMAC-256, BIP-GMAC-128, BIP-GMAC-256 */ 64 struct ieee80211_mmie_16 { 65 uint8_t element_id; 66 uint8_t length; 67 uint16_t key_id; 68 uint8_t ipn[6]; 69 uint8_t mic[16]; 70 }; 71 72 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */ 73 #define IEEE80211_CCMP_PN_LEN 6 74 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */ 75 #define IEEE80211_CCMP_256_HDR_LEN 8 76 #define IEEE80211_CCMP_256_MIC_LEN 16 77 #define IEEE80211_GCMP_HDR_LEN 8 78 #define IEEE80211_GCMP_MIC_LEN 16 79 #define IEEE80211_GCMP_PN_LEN 6 80 #define IEEE80211_GMAC_PN_LEN 6 81 #define IEEE80211_CMAC_PN_LEN 6 82 83 #define IEEE80211_MAX_PN_LEN 16 84 85 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1) 86 87 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX 88 #define IEEE80211_MAX_AMPDU_BUF_HE 256 89 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024 90 91 #define IEEE80211_MAX_FRAME_LEN 2352 92 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN) 93 94 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */ 95 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839 96 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935 97 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895 98 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991 99 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454 100 101 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */ 102 103 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */ 104 105 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */ 106 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f 107 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7) 108 109 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */ 110 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 111 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID 112 #define IEEE80211_QOS_CTL_EOSP 0x0010 113 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 114 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 115 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 116 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 117 118 enum ieee80211_rate_flags { 119 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0), /* 2.4Ghz, CCK */ 120 IEEE80211_RATE_SUPPORTS_5MHZ = BIT(1), 121 IEEE80211_RATE_SUPPORTS_10MHZ = BIT(2), 122 IEEE80211_RATE_ERP_G = BIT(3), 123 124 /* 125 * According to documentation these are flags initialized internally. 126 * See lkpi_wiphy_band_annotate(). 127 */ 128 IEEE80211_RATE_MANDATORY_A = BIT(4), 129 IEEE80211_RATE_MANDATORY_G = BIT(5), 130 IEEE80211_RATE_MANDATORY_B = BIT(6), 131 }; 132 133 enum ieee80211_rate_control_changed_flags { 134 IEEE80211_RC_BW_CHANGED = BIT(0), 135 IEEE80211_RC_NSS_CHANGED = BIT(1), 136 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), 137 IEEE80211_RC_SMPS_CHANGED = BIT(3), 138 }; 139 140 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK 141 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK 142 143 #define IEEE80211_TKIP_ICV_LEN 4 144 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */ 145 146 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */ 147 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */ 148 149 /* 150 * 802.11-2020, 9.4.2.157.2 VHT Capabilities Information field, 151 * Table 9-271-Subfields of the VHT Capabilities Information field (continued). 152 */ 153 enum ieee80211_vht_max_ampdu_len_exp { 154 IEEE80211_VHT_MAX_AMPDU_8K = 0, 155 IEEE80211_VHT_MAX_AMPDU_16K = 1, 156 IEEE80211_VHT_MAX_AMPDU_32K = 2, 157 IEEE80211_VHT_MAX_AMPDU_64K = 3, 158 IEEE80211_VHT_MAX_AMPDU_128K = 4, 159 IEEE80211_VHT_MAX_AMPDU_256K = 5, 160 IEEE80211_VHT_MAX_AMPDU_512K = 6, 161 IEEE80211_VHT_MAX_AMPDU_1024K = 7, 162 }; 163 164 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */ 165 #define IEEE80211_WEP_ICV_LEN 4 166 167 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */ 168 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */ 169 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */ 170 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */ 171 172 enum wlan_ht_cap_sm_ps { 173 WLAN_HT_CAP_SM_PS_STATIC = 0, 174 WLAN_HT_CAP_SM_PS_DYNAMIC = 1, 175 WLAN_HT_CAP_SM_PS_INVALID = 2, 176 WLAN_HT_CAP_SM_PS_DISABLED = 3 177 }; 178 179 #define WLAN_MAX_KEY_LEN 32 180 #define WLAN_PMKID_LEN 16 181 #define WLAN_PMK_LEN_SUITE_B_192 48 182 183 enum ieee80211_key_len { 184 WLAN_KEY_LEN_WEP40 = 5, 185 WLAN_KEY_LEN_WEP104 = 13, 186 WLAN_KEY_LEN_TKIP = 32, 187 WLAN_KEY_LEN_CCMP = 16, 188 WLAN_KEY_LEN_CCMP_256 = 32, 189 WLAN_KEY_LEN_GCMP = 16, 190 WLAN_KEY_LEN_AES_CMAC = 16, 191 WLAN_KEY_LEN_GCMP_256 = 32, 192 WLAN_KEY_LEN_BIP_CMAC_256 = 32, 193 WLAN_KEY_LEN_BIP_GMAC_128 = 16, 194 WLAN_KEY_LEN_BIP_GMAC_256 = 32, 195 }; 196 197 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */ 198 enum ieee80211_min_mpdu_start_spacing { 199 IEEE80211_HT_MPDU_DENSITY_NONE = 0, 200 #if 0 201 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */ 202 #endif 203 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */ 204 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */ 205 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */ 206 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */ 207 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */ 208 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */ 209 }; 210 211 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */ 212 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */ 213 214 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK 215 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK 216 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8) 217 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8) 218 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8) 219 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8) 220 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8) 221 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8) 222 #define IEEE80211_FCTL_MOREDATA (IEEE80211_FC1_MORE_DATA << 8) 223 224 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT 225 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL 226 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA 227 228 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ 229 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ 230 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ 231 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC 232 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH 233 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH 234 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS 235 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS 236 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION 237 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA 238 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA 239 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL 240 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */ 241 242 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */ 243 244 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */ 245 246 247 /* Figure 9-27, BAR Control field */ 248 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 249 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 250 251 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */ 252 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */ 253 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */ 254 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */ 255 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */ 256 257 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */ 258 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */ 259 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */ 260 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */ 261 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */ 262 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */ 263 264 265 /* 9.6.13.1, Table 9-342 TDLS Action field values. */ 266 enum ieee80211_tdls_action_code { 267 WLAN_TDLS_SETUP_REQUEST = 0, 268 WLAN_TDLS_SETUP_RESPONSE = 1, 269 WLAN_TDLS_SETUP_CONFIRM = 2, 270 WLAN_TDLS_TEARDOWN = 3, 271 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 272 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 273 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 274 WLAN_TDLS_PEER_PSM_REQUEST = 7, 275 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 276 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 277 WLAN_TDLS_DISCOVERY_REQUEST = 10, 278 /* 11-255 reserved */ 279 }; 280 281 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */ 282 /* This is split up into octets CAPA1 = octet 1, ... */ 283 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8) 284 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8) 285 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8) 286 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8) 287 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8) 288 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8) 289 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8) 290 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8) 291 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8) 292 293 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */ 294 295 296 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */ 297 /* Would be so much easier if we'd define constants to the same. */ 298 enum ieee80211_ac_numbers { 299 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */ 300 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */ 301 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */ 302 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */ 303 }; 304 305 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */ 306 307 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1 308 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2 309 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4 310 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8 311 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf 312 313 314 /* Define the LinuxKPI names directly to the net80211 ones. */ 315 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC 316 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40 317 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS 318 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 319 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD 320 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20 321 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40 322 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC 323 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC 324 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S 325 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU 326 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40 327 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT 328 329 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001 330 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002 331 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 332 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c 333 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 334 #define IEEE80211_HT_MCS_MASK_LEN 10 335 336 #define IEEE80211_MLD_MAX_NUM_LINKS 15 337 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS 0xf 338 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060 339 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1 340 #define IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT 0x2000 341 342 struct ieee80211_mcs_info { 343 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 344 uint16_t rx_highest; 345 uint8_t tx_params; 346 uint8_t __reserved[3]; 347 } __packed; 348 349 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */ 350 struct ieee80211_ht_cap { 351 uint16_t cap_info; 352 uint8_t ampdu_params_info; 353 struct ieee80211_mcs_info mcs; 354 uint16_t extended_ht_cap_info; 355 uint32_t tx_BF_cap_info; 356 uint8_t antenna_selection_info; 357 } __packed; 358 359 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 360 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16 361 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20 362 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13 363 364 enum ieee80211_ht_max_ampdu_len { 365 IEEE80211_HT_MAX_AMPDU_64K 366 }; 367 368 enum ieee80211_ampdu_mlme_action { 369 IEEE80211_AMPDU_RX_START, 370 IEEE80211_AMPDU_RX_STOP, 371 IEEE80211_AMPDU_TX_OPERATIONAL, 372 IEEE80211_AMPDU_TX_START, 373 IEEE80211_AMPDU_TX_STOP_CONT, 374 IEEE80211_AMPDU_TX_STOP_FLUSH, 375 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT 376 }; 377 378 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1 379 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2 380 381 enum ieee80211_chanctx_switch_mode { 382 CHANCTX_SWMODE_REASSIGN_VIF, 383 CHANCTX_SWMODE_SWAP_CONTEXTS, 384 }; 385 386 enum ieee80211_chanctx_change_flags { 387 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0), 388 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1), 389 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2), 390 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3), 391 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4), 392 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5), 393 IEEE80211_CHANCTX_CHANGE_MIN_DEF = BIT(6), 394 IEEE80211_CHANCTX_CHANGE_AP = BIT(7), 395 }; 396 397 enum ieee80211_frame_release_type { 398 IEEE80211_FRAME_RELEASE_PSPOLL = 1, 399 IEEE80211_FRAME_RELEASE_UAPSD = 2, 400 }; 401 402 enum ieee80211_p2p_attr_ids { 403 IEEE80211_P2P_ATTR_DEVICE_ID, 404 IEEE80211_P2P_ATTR_DEVICE_INFO, 405 IEEE80211_P2P_ATTR_GROUP_ID, 406 IEEE80211_P2P_ATTR_LISTEN_CHANNEL, 407 IEEE80211_P2P_ATTR_ABSENCE_NOTICE, 408 }; 409 410 enum ieee80211_reconfig_type { 411 IEEE80211_RECONFIG_TYPE_RESTART, 412 IEEE80211_RECONFIG_TYPE_SUSPEND, 413 }; 414 415 enum ieee80211_roc_type { 416 IEEE80211_ROC_TYPE_MGMT_TX, 417 IEEE80211_ROC_TYPE_NORMAL, 418 }; 419 420 enum ieee80211_smps_mode { 421 IEEE80211_SMPS_OFF, 422 IEEE80211_SMPS_STATIC, 423 IEEE80211_SMPS_DYNAMIC, 424 IEEE80211_SMPS_AUTOMATIC, 425 IEEE80211_SMPS_NUM_MODES, 426 }; 427 428 /* net80211::IEEE80211_S_* different but represents the state machine. */ 429 /* Note: order here is important! */ 430 enum ieee80211_sta_state { 431 IEEE80211_STA_NOTEXIST = 0, 432 IEEE80211_STA_NONE = 1, 433 IEEE80211_STA_AUTH = 2, 434 IEEE80211_STA_ASSOC = 3, 435 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */ 436 }; 437 438 enum ieee80211_sta_rx_bandwidth { 439 IEEE80211_STA_RX_BW_20 = 0, 440 IEEE80211_STA_RX_BW_40, 441 IEEE80211_STA_RX_BW_80, 442 IEEE80211_STA_RX_BW_160, 443 IEEE80211_STA_RX_BW_320, 444 }; 445 446 enum ieee80211_tx_info_flags { 447 /* XXX TODO .. right shift numbers - not sure where that came from? */ 448 IEEE80211_TX_CTL_AMPDU = BIT(0), 449 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), 450 IEEE80211_TX_CTL_NO_ACK = BIT(2), 451 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3), 452 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4), 453 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5), 454 IEEE80211_TX_STATUS_EOSP = BIT(6), 455 IEEE80211_TX_STAT_ACK = BIT(7), 456 IEEE80211_TX_STAT_AMPDU = BIT(8), 457 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9), 458 IEEE80211_TX_STAT_TX_FILTERED = BIT(10), 459 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11), 460 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12), 461 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13), 462 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14), 463 IEEE80211_TX_CTL_INJECTED = BIT(15), 464 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16), 465 IEEE80211_TX_CTL_USE_MINRATE = BIT(17), 466 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18), 467 IEEE80211_TX_CTL_LDPC = BIT(19), 468 IEEE80211_TX_CTL_STBC = BIT(20), 469 } __packed; 470 471 enum ieee80211_tx_status_flags { 472 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0), 473 }; 474 475 enum ieee80211_tx_control_flags { 476 /* XXX TODO .. right shift numbers */ 477 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), 478 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1), 479 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2), 480 IEEE80211_TX_CTRL_DONT_USE_RATE_MASK = BIT(3), 481 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */ 482 }; 483 484 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128 485 486 #define IEEE80211_HT_CTL_LEN 4 487 488 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */ 489 __le16 frame_control; 490 __le16 duration_id; 491 uint8_t addr1[ETH_ALEN]; 492 uint8_t addr2[ETH_ALEN]; 493 uint8_t addr3[ETH_ALEN]; 494 __le16 seq_ctrl; 495 uint8_t addr4[ETH_ALEN]; 496 }; 497 498 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */ 499 __le16 frame_control; 500 __le16 duration_id; 501 uint8_t addr1[ETH_ALEN]; 502 uint8_t addr2[ETH_ALEN]; 503 uint8_t addr3[ETH_ALEN]; 504 __le16 seq_ctrl; 505 }; 506 507 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */ 508 __le16 frame_control; 509 __le16 duration_id; 510 uint8_t addr1[ETH_ALEN]; 511 uint8_t addr2[ETH_ALEN]; 512 uint8_t addr3[ETH_ALEN]; 513 __le16 seq_ctrl; 514 __le16 qos_ctrl; 515 }; 516 517 struct ieee80211_vendor_ie { 518 }; 519 520 /* 802.11-2020, Table 9-359-Block Ack Action field values */ 521 enum ieee80211_back { 522 WLAN_ACTION_ADDBA_REQ = 0, 523 }; 524 525 enum ieee80211_sa_query { 526 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 527 }; 528 529 /* 802.11-2020, Table 9-51-Category values */ 530 enum ieee80211_category { 531 WLAN_CATEGORY_BACK = 3, 532 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */ 533 }; 534 535 /* 80211-2020 9.3.3.2 Format of Management frames */ 536 struct ieee80211_mgmt { 537 __le16 frame_control; 538 __le16 duration_id; 539 uint8_t da[ETH_ALEN]; 540 uint8_t sa[ETH_ALEN]; 541 uint8_t bssid[ETH_ALEN]; 542 __le16 seq_ctrl; 543 union { 544 /* 9.3.3.3 Beacon frame format */ 545 struct { 546 uint64_t timestamp; 547 uint16_t beacon_int; 548 uint16_t capab_info; 549 uint8_t variable[0]; 550 } __packed beacon; 551 /* 9.3.3.5 Association Request frame format */ 552 struct { 553 uint16_t capab_info; 554 uint16_t listen_interval; 555 uint8_t variable[0]; 556 } __packed assoc_req; 557 /* 9.3.3.10 Probe Request frame format */ 558 struct { 559 uint8_t variable[0]; 560 } __packed probe_req; 561 /* 9.3.3.11 Probe Response frame format */ 562 struct { 563 uint64_t timestamp; 564 uint16_t beacon_int; 565 uint16_t capab_info; 566 uint8_t variable[0]; 567 } __packed probe_resp; 568 /* 9.3.3.14 Action frame format */ 569 struct { 570 /* 9.4.1.11 Action field */ 571 uint8_t category; 572 /* 9.6.8 Public Action details */ 573 union { 574 /* 9.6.2.5 TPC Report frame format */ 575 struct { 576 uint8_t spec_mgmt; 577 uint8_t dialog_token; 578 /* uint32_t tpc_rep_elem:: */ 579 uint8_t tpc_elem_id; 580 uint8_t tpc_elem_length; 581 uint8_t tpc_elem_tx_power; 582 uint8_t tpc_elem_link_margin; 583 } __packed tpc_report; 584 /* 802.11-2024, 9.6.7.32 FTM Request frame format */ 585 struct { 586 uint8_t public_action; 587 uint8_t trigger; 588 uint8_t variable[0]; 589 } __packed ftmr; 590 /* 802.11az-2022, 9.6.7.33 Fine Timing Measurement (FTM) frame format */ 591 /* XXX CHANGED IN 802.11-2024, 9.6.7.33 Fine Timing Measurement frame format */ 592 struct { 593 uint8_t public_action; 594 uint8_t dialog_token; 595 uint8_t follow_up; 596 uint8_t tod[6]; 597 uint8_t toa[6]; 598 uint16_t tod_error; 599 uint16_t toa_error; 600 uint8_t variable[0]; 601 } __packed ftm; 602 /* 802.11-2024, 9.6.4.2 ADDBA Request frame format */ 603 struct { 604 uint8_t action_code; 605 uint8_t dialog_token; 606 uint16_t capab; 607 uint16_t timeout; 608 uint16_t start_seq_num; 609 /* Optional follows... */ 610 uint8_t variable[0]; 611 } __packed addba_req; 612 /* 802.11-2024, 9.6.13.3 Event Report frame format */ 613 struct { 614 uint8_t wnm_action; 615 uint8_t dialog_token; 616 /* Optional follows... */ 617 uint8_t variable[0]; 618 } __packed wnm_timing_msr; 619 } u; 620 } __packed action; 621 DECLARE_FLEX_ARRAY(uint8_t, body); 622 } u; 623 } __packed __aligned(2); 624 625 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */ 626 __le16 frame_control; 627 __le16 duration; 628 uint8_t ra[ETH_ALEN]; 629 } __packed; 630 631 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */ 632 __le16 frame_control; 633 __le16 duration; 634 uint8_t ra[ETH_ALEN]; 635 uint8_t ta[ETH_ALEN]; 636 } __packed; 637 638 #define MHZ_TO_KHZ(_f) ((_f) * 1000) 639 #define DBI_TO_MBI(_g) ((_g) * 100) 640 #define MBI_TO_DBI(_x) ((_x) / 100) 641 #define DBM_TO_MBM(_g) ((_g) * 100) 642 #define MBM_TO_DBM(_x) ((_x) / 100) 643 644 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \ 645 IEEE80211_SEQ_SEQ_SHIFT) 646 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \ 647 IEEE80211_SEQ_SEQ_MASK) 648 649 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */ 650 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024) 651 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu)) 652 653 /* 9.4.2.21.1, Table 9-82. */ 654 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8 655 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11 656 657 /* 9.4.2.1, Table 9-77. Element IDs. */ 658 enum ieee80211_eid { 659 WLAN_EID_SSID = 0, 660 WLAN_EID_SUPP_RATES = 1, 661 WLAN_EID_DS_PARAMS = 3, 662 WLAN_EID_TIM = 5, 663 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */ 664 WLAN_EID_REQUEST = 10, 665 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */ 666 WLAN_EID_CHANNEL_SWITCH = 37, 667 WLAN_EID_MEASURE_REPORT = 39, 668 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */ 669 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */ 670 WLAN_EID_EXT_SUPP_RATES = 50, 671 WLAN_EID_EXT_NON_INHERITANCE = 56, 672 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 673 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */ 674 WLAN_EID_MULTI_BSSID_IDX = 85, 675 WLAN_EID_EXT_CAPABILITY = 127, 676 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */ 677 WLAN_EID_S1G_TWT = 216, 678 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */ 679 }; 680 681 enum ieee80211_eid_ext { 682 WLAN_EID_EXT_HE_CAPABILITY = 35, 683 }; 684 685 #define for_each_element(_elem, _data, _len) \ 686 for (_elem = (const struct element *)(_data); \ 687 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \ 688 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \ 689 _elem = (const struct element *)(_elem->data + _elem->datalen)) 690 691 #define for_each_element_id(_elem, _eid, _data, _len) \ 692 for_each_element(_elem, _data, _len) \ 693 if (_elem->id == (_eid)) 694 695 /* 9.4.1.7, Table 9-45. Reason codes. */ 696 enum ieee80211_reason_code { 697 /* reserved = 0, */ 698 WLAN_REASON_UNSPECIFIED = 1, 699 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */ 700 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25, 701 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26, 702 }; 703 704 /* 9.4.1.9, Table 9-46. Status codes. */ 705 enum ieee80211_status_code { 706 WLAN_STATUS_SUCCESS = 0, 707 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */ 708 }; 709 710 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */ 711 struct ieee80211_trigger { 712 __le16 frame_control; 713 __le16 duration_id; 714 uint8_t ra[ETH_ALEN]; 715 uint8_t ta[ETH_ALEN]; 716 __le64 common_info; /* 8+ really */ 717 uint8_t variable[]; 718 }; 719 720 /* Table 9-29c-Trigger Type subfield encoding */ 721 enum { 722 IEEE80211_TRIGGER_TYPE_BASIC = 0x0, 723 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2, 724 #if 0 725 /* Not seen yet. */ 726 BFRP = 0x1, 727 MU-RTS = 0x3, 728 BSRP = 0x4, 729 GCR MU-BAR = 0x5, 730 BQRP = 0x6, 731 NFRP = 0x7, 732 /* 0x8..0xf reserved */ 733 #endif 734 IEEE80211_TRIGGER_TYPE_MASK = 0xf 735 }; 736 737 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000 738 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0 739 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1 740 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2 741 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3 742 743 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */ 744 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3) 745 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4) 746 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5) 747 748 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */ 749 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3)) 750 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4) 751 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5) 752 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6) 753 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9)) 754 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14)) 755 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15) 756 757 struct ieee80211_twt_params { 758 int mantissa, min_twt_dur, twt; 759 uint16_t req_type; 760 }; 761 762 struct ieee80211_twt_setup { 763 int control; 764 struct ieee80211_twt_params *params; 765 }; 766 767 /* 802.11-2020, Table 9-297-TWT Setup Command field values */ 768 enum ieee80211_twt_setup_cmd { 769 TWT_SETUP_CMD_REQUEST = 0, 770 TWT_SETUP_CMD_SUGGEST = 1, 771 /* DEMAND = 2, */ 772 /* GROUPING = 3, */ 773 TWT_SETUP_CMD_ACCEPT = 4, 774 /* ALTERNATE = 5 */ 775 TWT_SETUP_CMD_DICTATE = 6, 776 TWT_SETUP_CMD_REJECT = 7, 777 }; 778 779 struct ieee80211_bssid_index { 780 int bssid_index; 781 }; 782 783 enum ieee80211_ap_reg_power { 784 IEEE80211_REG_UNSET_AP, 785 IEEE80211_REG_LPI_AP, 786 IEEE80211_REG_SP_AP, 787 IEEE80211_REG_VLP_AP, 788 }; 789 790 /* 791 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield 792 * if Maximum Transmit Power Interpretation subfield is 1 or 3 793 */ 794 #define IEEE80211_MAX_NUM_PWR_LEVEL 8 795 796 /* 797 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 798 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the 799 * United States (2) 800 */ 801 #define IEEE80211_TPE_MAX_IE_NUM 8 802 803 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */ 804 struct ieee80211_tx_pwr_env { 805 uint8_t tx_power_info; 806 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL]; 807 }; 808 809 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */ 810 /* These are field masks (3bit/3bit/2bit). */ 811 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07 812 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38 813 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0 814 815 /* 816 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 817 * encoding 818 */ 819 enum ieee80211_tx_pwr_interpretation_subfield_enc { 820 IEEE80211_TPE_LOCAL_EIRP, 821 IEEE80211_TPE_LOCAL_EIRP_PSD, 822 IEEE80211_TPE_REG_CLIENT_EIRP, 823 IEEE80211_TPE_REG_CLIENT_EIRP_PSD, 824 }; 825 826 enum ieee80211_tx_pwr_category_6ghz { 827 IEEE80211_TPE_CAT_6GHZ_DEFAULT, 828 }; 829 830 /* 802.11-2020, 9.4.2.27 BSS Load element */ 831 struct ieee80211_bss_load_elem { 832 uint16_t sta_count; 833 uint8_t channel_util; 834 uint16_t avail_adm_capa; 835 }; 836 837 struct ieee80211_p2p_noa_desc { 838 uint32_t count; /* uint8_t ? */ 839 uint32_t duration; 840 uint32_t interval; 841 uint32_t start_time; 842 }; 843 844 struct ieee80211_p2p_noa_attr { 845 uint8_t index; 846 uint8_t oppps_ctwindow; 847 struct ieee80211_p2p_noa_desc desc[4]; 848 }; 849 850 851 /* net80211: IEEE80211_IS_CTL() */ 852 static __inline bool 853 ieee80211_is_ctl(__le16 fc) 854 { 855 __le16 v; 856 857 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 858 v = htole16(IEEE80211_FC0_TYPE_CTL); 859 860 return (fc == v); 861 } 862 863 /* net80211: IEEE80211_IS_DATA() */ 864 static __inline bool 865 ieee80211_is_data(__le16 fc) 866 { 867 __le16 v; 868 869 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 870 v = htole16(IEEE80211_FC0_TYPE_DATA); 871 872 return (fc == v); 873 } 874 875 /* net80211: IEEE80211_IS_QOSDATA() */ 876 static __inline bool 877 ieee80211_is_data_qos(__le16 fc) 878 { 879 __le16 v; 880 881 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK); 882 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA); 883 884 return (fc == v); 885 } 886 887 /* net80211: IEEE80211_IS_MGMT() */ 888 static __inline bool 889 ieee80211_is_mgmt(__le16 fc) 890 { 891 __le16 v; 892 893 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 894 v = htole16(IEEE80211_FC0_TYPE_MGT); 895 896 return (fc == v); 897 } 898 899 900 /* Derived from net80211::ieee80211_anyhdrsize. */ 901 static __inline unsigned int 902 ieee80211_hdrlen(__le16 fc) 903 { 904 unsigned int size; 905 906 if (ieee80211_is_ctl(fc)) { 907 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) { 908 case htole16(IEEE80211_FC0_SUBTYPE_CTS): 909 case htole16(IEEE80211_FC0_SUBTYPE_ACK): 910 return sizeof(struct ieee80211_frame_ack); 911 case htole16(IEEE80211_FC0_SUBTYPE_BAR): 912 return sizeof(struct ieee80211_frame_bar); 913 } 914 return (sizeof(struct ieee80211_frame_min)); 915 } 916 917 size = sizeof(struct ieee80211_frame); 918 if (ieee80211_is_data(fc)) { 919 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) == 920 htole16(IEEE80211_FC1_DIR_DSTODS << 8)) 921 size += IEEE80211_ADDR_LEN; 922 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 923 IEEE80211_FC0_TYPE_MASK)) == 924 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 925 IEEE80211_FC0_TYPE_DATA)) 926 size += sizeof(uint16_t); 927 } 928 929 if (ieee80211_is_mgmt(fc)) { 930 #ifdef __notyet__ 931 printf("XXX-BZ %s: TODO? fc %#04x size %u\n", 932 __func__, fc, size); 933 #endif 934 ; 935 } 936 937 return (size); 938 } 939 940 static inline bool 941 ieee80211_is_trigger(__le16 fc) 942 { 943 __le16 v; 944 945 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 946 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL); 947 948 return (fc == v); 949 } 950 951 static __inline bool 952 ieee80211_is_action(__le16 fc) 953 { 954 __le16 v; 955 956 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 957 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT); 958 959 return (fc == v); 960 } 961 962 static __inline bool 963 ieee80211_is_probe_resp(__le16 fc) 964 { 965 __le16 v; 966 967 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 968 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT); 969 970 return (fc == v); 971 } 972 973 static __inline bool 974 ieee80211_is_auth(__le16 fc) 975 { 976 __le16 v; 977 978 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 979 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT); 980 981 return (fc == v); 982 } 983 984 static __inline bool 985 ieee80211_is_assoc_req(__le16 fc) 986 { 987 __le16 v; 988 989 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 990 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 991 992 return (fc == v); 993 } 994 995 static __inline bool 996 ieee80211_is_assoc_resp(__le16 fc) 997 { 998 __le16 v; 999 1000 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1001 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 1002 1003 return (fc == v); 1004 } 1005 1006 static __inline bool 1007 ieee80211_is_reassoc_req(__le16 fc) 1008 { 1009 __le16 v; 1010 1011 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1012 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 1013 1014 return (fc == v); 1015 } 1016 1017 static __inline bool 1018 ieee80211_is_reassoc_resp(__le16 fc) 1019 { 1020 __le16 v; 1021 1022 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1023 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 1024 1025 return (fc == v); 1026 } 1027 1028 static __inline bool 1029 ieee80211_is_disassoc(__le16 fc) 1030 { 1031 __le16 v; 1032 1033 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1034 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT); 1035 1036 return (fc == v); 1037 } 1038 1039 static __inline bool 1040 ieee80211_is_data_present(__le16 fc) 1041 { 1042 __le16 v; 1043 1044 /* If it is a data frame and NODATA is not present. */ 1045 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA); 1046 v = htole16(IEEE80211_FC0_TYPE_DATA); 1047 1048 return (fc == v); 1049 } 1050 1051 static __inline bool 1052 ieee80211_is_deauth(__le16 fc) 1053 { 1054 __le16 v; 1055 1056 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1057 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT); 1058 1059 return (fc == v); 1060 } 1061 1062 static __inline bool 1063 ieee80211_is_beacon(__le16 fc) 1064 { 1065 __le16 v; 1066 1067 /* 1068 * For as much as I get it this comes in LE and unlike FreeBSD 1069 * where we get the entire frame header and u8[], here we get the 1070 * 9.2.4.1 Frame Control field only. Mask and compare. 1071 */ 1072 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1073 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT); 1074 1075 return (fc == v); 1076 } 1077 1078 1079 static __inline bool 1080 ieee80211_is_probe_req(__le16 fc) 1081 { 1082 __le16 v; 1083 1084 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1085 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT); 1086 1087 return (fc == v); 1088 } 1089 1090 static __inline bool 1091 ieee80211_has_protected(__le16 fc) 1092 { 1093 1094 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8)); 1095 } 1096 1097 static __inline bool 1098 ieee80211_is_back_req(__le16 fc) 1099 { 1100 __le16 v; 1101 1102 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1103 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL); 1104 1105 return (fc == v); 1106 } 1107 1108 static __inline bool 1109 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb) 1110 { 1111 struct ieee80211_mgmt *mgmt; 1112 __le16 fc; 1113 1114 KASSERT(skb->len >= sizeof(fc), ("%s: skb %p short len %d\n", 1115 __func__, skb, skb->len)); 1116 1117 mgmt = (struct ieee80211_mgmt *)skb->data; 1118 fc = mgmt->frame_control; 1119 1120 /* 11.2.2 Bufferable MMPDUs, 802.11-2024. */ 1121 IMPROVE("XXX IBBS"); 1122 1123 if (!ieee80211_is_mgmt(fc)) 1124 return (false); 1125 if (ieee80211_is_disassoc(fc)) 1126 return (true); 1127 if (ieee80211_is_deauth(fc)) 1128 return (true); 1129 if (!ieee80211_is_action(fc)) 1130 return (false); 1131 1132 /* 1133 * Now we know it is an action frame, so we can check for a proper 1134 * length before accessing any further data to check if it is an 1135 * FTM/FTMR, which is non-bufferable. 1136 * 9.6.7.32 FTM Request frame format 1137 * 9.6.7.33 FTM frame format 1138 */ 1139 if (skb->len < offsetofend(typeof(*mgmt), u.action.u.ftm.public_action)) 1140 return (false); 1141 1142 if (mgmt->u.action.category != IEEE80211_ACTION_CAT_PUBLIC) 1143 return (false); 1144 1145 if (mgmt->u.action.u.ftm.public_action == 33 || /* FTM xxx defines? */ 1146 mgmt->u.action.u.ftmr.public_action == 32) /* FTMR xxx defines? */ 1147 return (false); 1148 1149 return (true); 1150 } 1151 1152 static __inline bool 1153 ieee80211_is_nullfunc(__le16 fc) 1154 { 1155 __le16 v; 1156 1157 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1158 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA); 1159 1160 return (fc == v); 1161 } 1162 1163 static __inline bool 1164 ieee80211_is_qos_nullfunc(__le16 fc) 1165 { 1166 __le16 v; 1167 1168 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1169 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA); 1170 1171 return (fc == v); 1172 } 1173 1174 static __inline bool 1175 ieee80211_is_any_nullfunc(__le16 fc) 1176 { 1177 1178 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)); 1179 } 1180 1181 static inline bool 1182 ieee80211_is_pspoll(__le16 fc) 1183 { 1184 __le16 v; 1185 1186 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1187 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL); 1188 1189 return (fc == v); 1190 } 1191 1192 static __inline bool 1193 ieee80211_has_a4(__le16 fc) 1194 { 1195 __le16 v; 1196 1197 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1198 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1199 1200 return (fc == v); 1201 } 1202 1203 static __inline bool 1204 ieee80211_has_order(__le16 fc) 1205 { 1206 1207 return (fc & htole16(IEEE80211_FC1_ORDER << 8)); 1208 } 1209 1210 static __inline bool 1211 ieee80211_has_retry(__le16 fc) 1212 { 1213 1214 return (fc & htole16(IEEE80211_FC1_RETRY << 8)); 1215 } 1216 1217 1218 static __inline bool 1219 ieee80211_has_fromds(__le16 fc) 1220 { 1221 1222 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8)); 1223 } 1224 1225 static __inline bool 1226 ieee80211_has_tods(__le16 fc) 1227 { 1228 1229 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8)); 1230 } 1231 1232 static __inline uint8_t * 1233 ieee80211_get_SA(struct ieee80211_hdr *hdr) 1234 { 1235 1236 if (ieee80211_has_a4(hdr->frame_control)) 1237 return (hdr->addr4); 1238 if (ieee80211_has_fromds(hdr->frame_control)) 1239 return (hdr->addr3); 1240 return (hdr->addr2); 1241 } 1242 1243 static __inline uint8_t * 1244 ieee80211_get_DA(struct ieee80211_hdr *hdr) 1245 { 1246 1247 if (ieee80211_has_tods(hdr->frame_control)) 1248 return (hdr->addr3); 1249 return (hdr->addr1); 1250 } 1251 1252 static __inline bool 1253 ieee80211_has_morefrags(__le16 fc) 1254 { 1255 1256 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8); 1257 return (fc != 0); 1258 } 1259 1260 static __inline bool 1261 ieee80211_is_frag(struct ieee80211_hdr *hdr) 1262 { 1263 return (ieee80211_has_morefrags(hdr->frame_control) || 1264 (hdr->seq_ctrl & htole16(IEEE80211_SEQ_FRAG_MASK)) != 0); 1265 } 1266 1267 static __inline bool 1268 ieee80211_is_first_frag(__le16 seq_ctrl) 1269 { 1270 return ((seq_ctrl & htole16(IEEE80211_SEQ_FRAG_MASK)) == 0); 1271 } 1272 1273 static __inline bool 1274 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb) 1275 { 1276 struct ieee80211_mgmt *mgmt; 1277 1278 if (skb->len < sizeof(mgmt->frame_control)) 1279 return (false); 1280 mgmt = (struct ieee80211_mgmt *)skb->data; 1281 1282 /* 802.11-2024, 12.2.7 Requirements for management frame protection */ 1283 1284 if (ieee80211_is_disassoc(mgmt->frame_control)) 1285 return (true); 1286 if (ieee80211_is_deauth(mgmt->frame_control)) 1287 return (true); 1288 1289 if (!ieee80211_is_action(mgmt->frame_control)) 1290 return (false); 1291 1292 /* 1293 * If the action frame is a protected frame the peer has already 1294 * decided that it is a robust mgmt frame. 1295 * This is not exactly in the books but maintaining the below 1296 * table will go out of sync eventually and this can save us. 1297 */ 1298 if (ieee80211_has_protected(mgmt->frame_control)) 1299 return (true); 1300 1301 /* 1302 * 802.11-2024, 9.4.1.11 Action Fields, 1303 * Table 9-81-Category values; check for the ones marked Robust: no. 1304 */ 1305 /* Check length again before accessing more data. */ 1306 if (skb->len < offsetofend(typeof(*mgmt), u.action.category)) 1307 return (false); 1308 1309 switch (mgmt->u.action.category) { 1310 case 4: /* Public */ 1311 case 7: /* HT */ 1312 case 11: /* Unprotected WNM */ 1313 /* 12 */ /* TDLS */ 1314 case 15: /* Self-protected */ 1315 case 20: /* Unprotected DMG */ 1316 case 21: /* VHT */ 1317 case 22: /* Unprotected S1G */ 1318 case 30: /* HE */ 1319 case 127: /* Vendor-specific */ 1320 return (false); 1321 default: 1322 return (true); 1323 } 1324 } 1325 1326 static __inline bool 1327 ieee80211_is_ftm(struct sk_buff *skb) 1328 { 1329 struct ieee80211_mgmt *mgmt; 1330 1331 /* First check length before accessing data. */ 1332 if (skb->len < offsetofend(typeof(*mgmt), u.action.u.ftm.public_action)) 1333 return (false); 1334 1335 mgmt = (struct ieee80211_mgmt *)skb->data; 1336 if (!ieee80211_is_action(mgmt->frame_control)) 1337 return (false); 1338 if (mgmt->u.action.category != IEEE80211_ACTION_CAT_PUBLIC) 1339 return (false); 1340 if (mgmt->u.action.u.ftm.public_action == 33) /* FTM xxx defines? */ 1341 return (true); 1342 1343 return (false); 1344 } 1345 1346 static __inline bool 1347 ieee80211_is_timing_measurement(struct sk_buff *skb) 1348 { 1349 struct ieee80211_mgmt *mgmt; 1350 1351 /* First check length before accessing data. */ 1352 if (skb->len < offsetofend(typeof(*mgmt), u.action.u.wnm_timing_msr.wnm_action)) 1353 return (false); 1354 1355 mgmt = (struct ieee80211_mgmt *)skb->data; 1356 if (!ieee80211_is_action(mgmt->frame_control)) 1357 return (false); 1358 1359 if (mgmt->u.action.category != IEEE80211_ACTION_CAT_UNPROTECTED_WNM) 1360 return (false); 1361 if (mgmt->u.action.u.wnm_timing_msr.wnm_action == 1) /* Event Report xxx defines? */ 1362 return (true); 1363 1364 return (false); 1365 } 1366 1367 static __inline bool 1368 ieee80211_has_pm(__le16 fc) 1369 { 1370 fc &= htole16(IEEE80211_FC1_PWR_MGT << 8); 1371 return (fc != 0); 1372 } 1373 1374 static __inline u8 * 1375 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1376 { 1377 if (ieee80211_has_a4(hdr->frame_control)) 1378 return (u8 *)hdr + 30; 1379 else 1380 return (u8 *)hdr + 24; 1381 } 1382 1383 #endif /* _LINUXKPI_LINUX_IEEE80211_H */ 1384