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/if_ether.h> 39 40 /* linux_80211.c */ 41 extern int linuxkpi_debug_80211; 42 #ifndef D80211_TODO 43 #define D80211_TODO 0x1 44 #endif 45 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \ 46 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__) 47 48 49 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */ 50 struct ieee80211_mmie_16 { 51 uint8_t element_id; 52 uint8_t length; 53 uint16_t key_id; 54 uint8_t ipn[6]; 55 uint8_t mic[16]; 56 }; 57 58 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */ 59 #define IEEE80211_CCMP_PN_LEN 6 60 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */ 61 #define IEEE80211_CCMP_256_HDR_LEN 8 62 #define IEEE80211_CCMP_256_MIC_LEN 16 63 #define IEEE80211_GCMP_HDR_LEN 8 64 #define IEEE80211_GCMP_MIC_LEN 16 65 #define IEEE80211_GCMP_PN_LEN 6 66 #define IEEE80211_GMAC_PN_LEN 6 67 #define IEEE80211_CMAC_PN_LEN 6 68 69 #define IEEE80211_MAX_PN_LEN 16 70 71 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1) 72 73 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX 74 #define IEEE80211_MAX_AMPDU_BUF_HE 256 75 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024 76 77 #define IEEE80211_MAX_FRAME_LEN 2352 78 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN) 79 80 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */ 81 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839 82 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935 83 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895 84 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991 85 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454 86 87 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */ 88 89 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */ 90 91 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */ 92 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f 93 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7) 94 95 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */ 96 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 97 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID 98 #define IEEE80211_QOS_CTL_EOSP 0x0010 99 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 100 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 101 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 102 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 103 104 enum ieee80211_rate_flags { 105 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0), 106 }; 107 108 enum ieee80211_rate_control_changed_flags { 109 IEEE80211_RC_BW_CHANGED = BIT(0), 110 IEEE80211_RC_NSS_CHANGED = BIT(1), 111 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), 112 IEEE80211_RC_SMPS_CHANGED = BIT(3), 113 }; 114 115 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK 116 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK 117 118 #define IEEE80211_TKIP_ICV_LEN 4 119 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */ 120 121 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */ 122 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */ 123 124 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */ 125 126 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */ 127 #define IEEE80211_WEP_ICV_LEN 4 128 129 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */ 130 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */ 131 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */ 132 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */ 133 134 enum wlan_ht_cap_sm_ps { 135 WLAN_HT_CAP_SM_PS_STATIC = 0, 136 WLAN_HT_CAP_SM_PS_DYNAMIC, 137 WLAN_HT_CAP_SM_PS_INVALID, 138 WLAN_HT_CAP_SM_PS_DISABLED, 139 }; 140 141 #define WLAN_MAX_KEY_LEN 32 142 #define WLAN_PMKID_LEN 16 143 #define WLAN_PMK_LEN_SUITE_B_192 48 144 145 enum ieee80211_key_len { 146 WLAN_KEY_LEN_WEP40 = 5, 147 WLAN_KEY_LEN_WEP104 = 13, 148 WLAN_KEY_LEN_TKIP = 32, 149 WLAN_KEY_LEN_CCMP = 16, 150 WLAN_KEY_LEN_CCMP_256 = 32, 151 WLAN_KEY_LEN_GCMP = 16, 152 WLAN_KEY_LEN_AES_CMAC = 16, 153 WLAN_KEY_LEN_GCMP_256 = 32, 154 WLAN_KEY_LEN_BIP_CMAC_256 = 32, 155 WLAN_KEY_LEN_BIP_GMAC_128 = 16, 156 WLAN_KEY_LEN_BIP_GMAC_256 = 32, 157 }; 158 159 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */ 160 enum ieee80211_min_mpdu_start_spacing { 161 IEEE80211_HT_MPDU_DENSITY_NONE = 0, 162 #if 0 163 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */ 164 #endif 165 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */ 166 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */ 167 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */ 168 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */ 169 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */ 170 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */ 171 }; 172 173 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */ 174 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */ 175 176 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK 177 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK 178 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8) 179 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8) 180 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8) 181 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8) 182 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8) 183 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8) 184 185 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT 186 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL 187 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA 188 189 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ 190 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ 191 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ 192 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC 193 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH 194 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH 195 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS 196 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS 197 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION 198 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA 199 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA 200 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL 201 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */ 202 203 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */ 204 205 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */ 206 207 208 /* Figure 9-27, BAR Control field */ 209 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 210 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 211 212 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */ 213 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */ 214 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */ 215 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */ 216 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */ 217 218 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */ 219 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */ 220 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */ 221 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */ 222 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */ 223 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */ 224 225 226 /* 9.6.13.1, Table 9-342 TDLS Action field values. */ 227 enum ieee80211_tdls_action_code { 228 WLAN_TDLS_SETUP_REQUEST = 0, 229 WLAN_TDLS_SETUP_RESPONSE = 1, 230 WLAN_TDLS_SETUP_CONFIRM = 2, 231 WLAN_TDLS_TEARDOWN = 3, 232 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 233 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 234 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 235 WLAN_TDLS_PEER_PSM_REQUEST = 7, 236 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 237 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 238 WLAN_TDLS_DISCOVERY_REQUEST = 10, 239 /* 11-255 reserved */ 240 }; 241 242 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */ 243 /* This is split up into octets CAPA1 = octet 1, ... */ 244 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8) 245 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8) 246 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8) 247 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8) 248 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8) 249 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8) 250 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8) 251 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8) 252 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8) 253 254 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */ 255 256 257 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */ 258 /* Would be so much easier if we'd define constants to the same. */ 259 enum ieee80211_ac_numbers { 260 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */ 261 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */ 262 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */ 263 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */ 264 }; 265 266 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */ 267 268 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1 269 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2 270 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4 271 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8 272 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf 273 274 275 /* Define the LinuxKPI names directly to the net80211 ones. */ 276 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC 277 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40 278 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS 279 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 280 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD 281 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20 282 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40 283 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC 284 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC 285 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S 286 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU 287 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40 288 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT 289 290 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001 291 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002 292 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 293 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c 294 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 295 #define IEEE80211_HT_MCS_MASK_LEN 10 296 297 #define IEEE80211_MLD_MAX_NUM_LINKS 15 298 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060 299 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1 300 301 struct ieee80211_mcs_info { 302 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 303 uint16_t rx_highest; 304 uint8_t tx_params; 305 uint8_t __reserved[3]; 306 }; 307 308 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */ 309 struct ieee80211_ht_cap { 310 uint16_t cap_info; 311 uint8_t ampdu_params_info; 312 struct ieee80211_mcs_info mcs; 313 uint16_t extended_ht_cap_info; 314 uint32_t tx_BF_cap_info; 315 uint8_t antenna_selection_info; 316 }; 317 318 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 319 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16 320 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20 321 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13 322 323 enum ieee80211_ht_max_ampdu_len { 324 IEEE80211_HT_MAX_AMPDU_64K 325 }; 326 327 enum ieee80211_ampdu_mlme_action { 328 IEEE80211_AMPDU_RX_START, 329 IEEE80211_AMPDU_RX_STOP, 330 IEEE80211_AMPDU_TX_OPERATIONAL, 331 IEEE80211_AMPDU_TX_START, 332 IEEE80211_AMPDU_TX_STOP_CONT, 333 IEEE80211_AMPDU_TX_STOP_FLUSH, 334 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT 335 }; 336 337 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1 338 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2 339 340 enum ieee80211_chanctx_switch_mode { 341 CHANCTX_SWMODE_REASSIGN_VIF, 342 CHANCTX_SWMODE_SWAP_CONTEXTS, 343 }; 344 345 enum ieee80211_chanctx_change_flags { 346 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0), 347 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1), 348 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2), 349 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3), 350 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4), 351 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5), 352 }; 353 354 enum ieee80211_frame_release_type { 355 IEEE80211_FRAME_RELEASE_PSPOLL = 1, 356 IEEE80211_FRAME_RELEASE_UAPSD = 2, 357 }; 358 359 enum ieee80211_p2p_attr_ids { 360 IEEE80211_P2P_ATTR_DEVICE_ID, 361 IEEE80211_P2P_ATTR_DEVICE_INFO, 362 IEEE80211_P2P_ATTR_GROUP_ID, 363 IEEE80211_P2P_ATTR_LISTEN_CHANNEL, 364 IEEE80211_P2P_ATTR_ABSENCE_NOTICE, 365 }; 366 367 enum ieee80211_reconfig_type { 368 IEEE80211_RECONFIG_TYPE_RESTART, 369 IEEE80211_RECONFIG_TYPE_SUSPEND, 370 }; 371 372 enum ieee80211_roc_type { 373 IEEE80211_ROC_TYPE_MGMT_TX, 374 IEEE80211_ROC_TYPE_NORMAL, 375 }; 376 377 enum ieee80211_smps_mode { 378 IEEE80211_SMPS_OFF, 379 IEEE80211_SMPS_STATIC, 380 IEEE80211_SMPS_DYNAMIC, 381 IEEE80211_SMPS_AUTOMATIC, 382 IEEE80211_SMPS_NUM_MODES, 383 }; 384 385 /* net80211::IEEE80211_S_* different but represents the state machine. */ 386 /* Note: order here is important! */ 387 enum ieee80211_sta_state { 388 IEEE80211_STA_NOTEXIST = 0, 389 IEEE80211_STA_NONE = 1, 390 IEEE80211_STA_AUTH = 2, 391 IEEE80211_STA_ASSOC = 3, 392 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */ 393 }; 394 395 enum ieee80211_tx_info_flags { 396 /* XXX TODO .. right shift numbers - not sure where that came from? */ 397 IEEE80211_TX_CTL_AMPDU = BIT(0), 398 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), 399 IEEE80211_TX_CTL_NO_ACK = BIT(2), 400 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3), 401 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4), 402 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5), 403 IEEE80211_TX_STATUS_EOSP = BIT(6), 404 IEEE80211_TX_STAT_ACK = BIT(7), 405 IEEE80211_TX_STAT_AMPDU = BIT(8), 406 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9), 407 IEEE80211_TX_STAT_TX_FILTERED = BIT(10), 408 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11), 409 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12), 410 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13), 411 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14), 412 IEEE80211_TX_CTL_INJECTED = BIT(15), 413 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16), 414 IEEE80211_TX_CTL_USE_MINRATE = BIT(17), 415 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18), 416 IEEE80211_TX_CTL_LDPC = BIT(19), 417 IEEE80211_TX_CTL_STBC = BIT(20), 418 } __packed; 419 420 enum ieee80211_tx_status_flags { 421 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0), 422 }; 423 424 enum ieee80211_tx_control_flags { 425 /* XXX TODO .. right shift numbers */ 426 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), 427 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1), 428 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2), 429 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */ 430 }; 431 432 enum ieee80211_tx_rate_flags { 433 /* XXX TODO .. right shift numbers */ 434 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0), 435 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1), 436 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2), 437 IEEE80211_TX_RC_GREEN_FIELD = BIT(3), 438 IEEE80211_TX_RC_MCS = BIT(4), 439 IEEE80211_TX_RC_SHORT_GI = BIT(5), 440 IEEE80211_TX_RC_VHT_MCS = BIT(6), 441 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7), 442 }; 443 444 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128 445 446 #define IEEE80211_HT_CTL_LEN 4 447 448 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */ 449 __le16 frame_control; 450 __le16 duration_id; 451 uint8_t addr1[ETH_ALEN]; 452 uint8_t addr2[ETH_ALEN]; 453 uint8_t addr3[ETH_ALEN]; 454 __le16 seq_ctrl; 455 uint8_t addr4[ETH_ALEN]; 456 }; 457 458 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */ 459 __le16 frame_control; 460 __le16 duration_id; 461 uint8_t addr1[ETH_ALEN]; 462 uint8_t addr2[ETH_ALEN]; 463 uint8_t addr3[ETH_ALEN]; 464 __le16 seq_ctrl; 465 }; 466 467 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */ 468 __le16 frame_control; 469 __le16 duration_id; 470 uint8_t addr1[ETH_ALEN]; 471 uint8_t addr2[ETH_ALEN]; 472 uint8_t addr3[ETH_ALEN]; 473 __le16 seq_ctrl; 474 __le16 qos_ctrl; 475 }; 476 477 struct ieee80211_vendor_ie { 478 }; 479 480 /* 802.11-2020, Table 9-359-Block Ack Action field values */ 481 enum ieee80211_back { 482 WLAN_ACTION_ADDBA_REQ = 0, 483 }; 484 485 enum ieee80211_sa_query { 486 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 487 }; 488 489 /* 802.11-2020, Table 9-51-Category values */ 490 enum ieee80211_category { 491 WLAN_CATEGORY_BACK = 3, 492 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */ 493 }; 494 495 /* 80211-2020 9.3.3.2 Format of Management frames */ 496 struct ieee80211_mgmt { 497 __le16 frame_control; 498 __le16 duration_id; 499 uint8_t da[ETH_ALEN]; 500 uint8_t sa[ETH_ALEN]; 501 uint8_t bssid[ETH_ALEN]; 502 __le16 seq_ctrl; 503 union { 504 /* 9.3.3.3 Beacon frame format */ 505 struct { 506 uint64_t timestamp; 507 uint16_t beacon_int; 508 uint16_t capab_info; 509 uint8_t variable[0]; 510 } beacon; 511 /* 9.3.3.5 Association Request frame format */ 512 struct { 513 uint16_t capab_info; 514 uint16_t listen_interval; 515 uint8_t variable[0]; 516 } assoc_req; 517 /* 9.3.3.10 Probe Request frame format */ 518 struct { 519 uint8_t variable[0]; 520 } probe_req; 521 /* 9.3.3.11 Probe Response frame format */ 522 struct { 523 uint64_t timestamp; 524 uint16_t beacon_int; 525 uint16_t capab_info; 526 uint8_t variable[0]; 527 } probe_resp; 528 /* 9.3.3.14 Action frame format */ 529 struct { 530 /* 9.4.1.11 Action field */ 531 uint8_t category; 532 /* 9.6.8 Public Action details */ 533 union { 534 /* 9.6.2.5 TPC Report frame format */ 535 struct { 536 uint8_t spec_mgmt; 537 uint8_t dialog_token; 538 /* uint32_t tpc_rep_elem:: */ 539 uint8_t tpc_elem_id; 540 uint8_t tpc_elem_length; 541 uint8_t tpc_elem_tx_power; 542 uint8_t tpc_elem_link_margin; 543 } tpc_report; 544 /* 9.6.8.33 Fine Timing Measurement frame format */ 545 struct { 546 uint8_t dialog_token; 547 uint8_t follow_up; 548 uint8_t tod[6]; 549 uint8_t toa[6]; 550 uint16_t tod_error; 551 uint16_t toa_error; 552 uint8_t variable[0]; 553 } ftm; 554 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */ 555 struct { 556 uint8_t action_code; 557 uint8_t dialog_token; 558 uint16_t capab; 559 uint16_t timeout; 560 uint16_t start_seq_num; 561 /* Optional follows... */ 562 uint8_t variable[0]; 563 } addba_req; 564 /* XXX */ 565 struct { 566 uint8_t dialog_token; 567 } wnm_timing_msr; 568 } u; 569 } action; 570 DECLARE_FLEX_ARRAY(uint8_t, body); 571 } u; 572 }; 573 574 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */ 575 __le16 frame_control; 576 __le16 duration; 577 uint8_t ra[ETH_ALEN]; 578 } __packed; 579 580 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */ 581 __le16 frame_control; 582 __le16 duration; 583 uint8_t ra[ETH_ALEN]; 584 uint8_t ta[ETH_ALEN]; 585 } __packed; 586 587 #define MHZ_TO_KHZ(_f) ((_f) * 1000) 588 #define DBI_TO_MBI(_g) ((_g) * 100) 589 #define MBI_TO_DBI(_x) ((_x) / 100) 590 #define DBM_TO_MBM(_g) ((_g) * 100) 591 #define MBM_TO_DBM(_x) ((_x) / 100) 592 593 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \ 594 IEEE80211_SEQ_SEQ_SHIFT) 595 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \ 596 IEEE80211_SEQ_SEQ_MASK) 597 598 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */ 599 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024) 600 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu)) 601 602 /* 9.4.2.21.1, Table 9-82. */ 603 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8 604 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11 605 606 /* 9.4.2.1, Table 9-77. Element IDs. */ 607 enum ieee80211_eid { 608 WLAN_EID_SSID = 0, 609 WLAN_EID_SUPP_RATES = 1, 610 WLAN_EID_DS_PARAMS = 3, 611 WLAN_EID_TIM = 5, 612 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */ 613 WLAN_EID_REQUEST = 10, 614 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */ 615 WLAN_EID_CHANNEL_SWITCH = 37, 616 WLAN_EID_MEASURE_REPORT = 39, 617 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */ 618 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */ 619 WLAN_EID_EXT_SUPP_RATES = 50, 620 WLAN_EID_EXT_NON_INHERITANCE = 56, 621 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 622 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */ 623 WLAN_EID_MULTI_BSSID_IDX = 85, 624 WLAN_EID_EXT_CAPABILITY = 127, 625 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */ 626 WLAN_EID_S1G_TWT = 216, 627 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */ 628 }; 629 630 enum ieee80211_eid_ext { 631 WLAN_EID_EXT_HE_CAPABILITY = 35, 632 }; 633 634 #define for_each_element(_elem, _data, _len) \ 635 for (_elem = (const struct element *)(_data); \ 636 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \ 637 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \ 638 _elem = (const struct element *)(_elem->data + _elem->datalen)) 639 640 #define for_each_element_id(_elem, _eid, _data, _len) \ 641 for_each_element(_elem, _data, _len) \ 642 if (_elem->id == (_eid)) 643 644 /* 9.4.1.7, Table 9-45. Reason codes. */ 645 enum ieee80211_reason_code { 646 /* reserved = 0, */ 647 WLAN_REASON_UNSPECIFIED = 1, 648 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */ 649 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25, 650 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26, 651 }; 652 653 /* 9.4.1.9, Table 9-46. Status codes. */ 654 enum ieee80211_status_code { 655 WLAN_STATUS_SUCCESS = 0, 656 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */ 657 }; 658 659 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */ 660 struct ieee80211_trigger { 661 __le16 frame_control; 662 __le16 duration_id; 663 uint8_t ra[ETH_ALEN]; 664 uint8_t ta[ETH_ALEN]; 665 __le64 common_info; /* 8+ really */ 666 uint8_t variable[]; 667 }; 668 669 /* Table 9-29c-Trigger Type subfield encoding */ 670 enum { 671 IEEE80211_TRIGGER_TYPE_BASIC = 0x0, 672 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2, 673 #if 0 674 /* Not seen yet. */ 675 BFRP = 0x1, 676 MU-RTS = 0x3, 677 BSRP = 0x4, 678 GCR MU-BAR = 0x5, 679 BQRP = 0x6, 680 NFRP = 0x7, 681 /* 0x8..0xf reserved */ 682 #endif 683 IEEE80211_TRIGGER_TYPE_MASK = 0xf 684 }; 685 686 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000 687 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0 688 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1 689 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2 690 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3 691 692 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */ 693 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3) 694 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4) 695 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5) 696 697 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */ 698 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3)) 699 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4) 700 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5) 701 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6) 702 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9)) 703 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14)) 704 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15) 705 706 struct ieee80211_twt_params { 707 int mantissa, min_twt_dur, twt; 708 uint16_t req_type; 709 }; 710 711 struct ieee80211_twt_setup { 712 int control; 713 struct ieee80211_twt_params *params; 714 }; 715 716 /* 802.11-2020, Table 9-297-TWT Setup Command field values */ 717 enum ieee80211_twt_setup_cmd { 718 TWT_SETUP_CMD_REQUEST = 0, 719 TWT_SETUP_CMD_SUGGEST = 1, 720 /* DEMAND = 2, */ 721 /* GROUPING = 3, */ 722 TWT_SETUP_CMD_ACCEPT = 4, 723 /* ALTERNATE = 5 */ 724 TWT_SETUP_CMD_DICTATE = 6, 725 TWT_SETUP_CMD_REJECT = 7, 726 }; 727 728 struct ieee80211_bssid_index { 729 int bssid_index; 730 }; 731 732 enum ieee80211_ap_reg_power { 733 IEEE80211_REG_UNSET_AP, 734 IEEE80211_REG_LPI_AP, 735 IEEE80211_REG_SP_AP, 736 IEEE80211_REG_VLP_AP, 737 }; 738 739 /* 740 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield 741 * if Maximum Transmit Power Interpretation subfield is 1 or 3 742 */ 743 #define IEEE80211_MAX_NUM_PWR_LEVEL 8 744 745 /* 746 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 747 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the 748 * United States (2) 749 */ 750 #define IEEE80211_TPE_MAX_IE_NUM 8 751 752 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */ 753 struct ieee80211_tx_pwr_env { 754 uint8_t tx_power_info; 755 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL]; 756 }; 757 758 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */ 759 /* These are field masks (3bit/3bit/2bit). */ 760 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07 761 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38 762 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0 763 764 /* 765 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 766 * encoding 767 */ 768 enum ieee80211_tx_pwr_interpretation_subfield_enc { 769 IEEE80211_TPE_LOCAL_EIRP, 770 IEEE80211_TPE_LOCAL_EIRP_PSD, 771 IEEE80211_TPE_REG_CLIENT_EIRP, 772 IEEE80211_TPE_REG_CLIENT_EIRP_PSD, 773 }; 774 775 enum ieee80211_tx_pwr_category_6ghz { 776 IEEE80211_TPE_CAT_6GHZ_DEFAULT, 777 }; 778 779 /* 802.11-2020, 9.4.2.27 BSS Load element */ 780 struct ieee80211_bss_load_elem { 781 uint16_t sta_count; 782 uint8_t channel_util; 783 uint16_t avail_adm_capa; 784 }; 785 786 /* net80211: IEEE80211_IS_CTL() */ 787 static __inline bool 788 ieee80211_is_ctl(__le16 fc) 789 { 790 __le16 v; 791 792 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 793 v = htole16(IEEE80211_FC0_TYPE_CTL); 794 795 return (fc == v); 796 } 797 798 /* net80211: IEEE80211_IS_DATA() */ 799 static __inline bool 800 ieee80211_is_data(__le16 fc) 801 { 802 __le16 v; 803 804 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 805 v = htole16(IEEE80211_FC0_TYPE_DATA); 806 807 return (fc == v); 808 } 809 810 /* net80211: IEEE80211_IS_QOSDATA() */ 811 static __inline bool 812 ieee80211_is_data_qos(__le16 fc) 813 { 814 __le16 v; 815 816 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK); 817 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA); 818 819 return (fc == v); 820 } 821 822 /* net80211: IEEE80211_IS_MGMT() */ 823 static __inline bool 824 ieee80211_is_mgmt(__le16 fc) 825 { 826 __le16 v; 827 828 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 829 v = htole16(IEEE80211_FC0_TYPE_MGT); 830 831 return (fc == v); 832 } 833 834 835 /* Derived from net80211::ieee80211_anyhdrsize. */ 836 static __inline unsigned int 837 ieee80211_hdrlen(__le16 fc) 838 { 839 unsigned int size; 840 841 if (ieee80211_is_ctl(fc)) { 842 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) { 843 case htole16(IEEE80211_FC0_SUBTYPE_CTS): 844 case htole16(IEEE80211_FC0_SUBTYPE_ACK): 845 return sizeof(struct ieee80211_frame_ack); 846 case htole16(IEEE80211_FC0_SUBTYPE_BAR): 847 return sizeof(struct ieee80211_frame_bar); 848 } 849 return (sizeof(struct ieee80211_frame_min)); 850 } 851 852 size = sizeof(struct ieee80211_frame); 853 if (ieee80211_is_data(fc)) { 854 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) == 855 htole16(IEEE80211_FC1_DIR_DSTODS << 8)) 856 size += IEEE80211_ADDR_LEN; 857 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 858 IEEE80211_FC0_TYPE_MASK)) == 859 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 860 IEEE80211_FC0_TYPE_DATA)) 861 size += sizeof(uint16_t); 862 } 863 864 if (ieee80211_is_mgmt(fc)) { 865 #ifdef __notyet__ 866 printf("XXX-BZ %s: TODO? fc %#04x size %u\n", 867 __func__, fc, size); 868 #endif 869 ; 870 } 871 872 return (size); 873 } 874 875 static inline bool 876 ieee80211_is_trigger(__le16 fc) 877 { 878 __le16 v; 879 880 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 881 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL); 882 883 return (fc == v); 884 } 885 886 static __inline bool 887 ieee80211_is_action(__le16 fc) 888 { 889 __le16 v; 890 891 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 892 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT); 893 894 return (fc == v); 895 } 896 897 static __inline bool 898 ieee80211_is_probe_resp(__le16 fc) 899 { 900 __le16 v; 901 902 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 903 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT); 904 905 return (fc == v); 906 } 907 908 static __inline bool 909 ieee80211_is_auth(__le16 fc) 910 { 911 __le16 v; 912 913 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 914 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT); 915 916 return (fc == v); 917 } 918 919 static __inline bool 920 ieee80211_is_assoc_req(__le16 fc) 921 { 922 __le16 v; 923 924 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 925 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 926 927 return (fc == v); 928 } 929 930 static __inline bool 931 ieee80211_is_assoc_resp(__le16 fc) 932 { 933 __le16 v; 934 935 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 936 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 937 938 return (fc == v); 939 } 940 941 static __inline bool 942 ieee80211_is_reassoc_req(__le16 fc) 943 { 944 __le16 v; 945 946 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 947 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 948 949 return (fc == v); 950 } 951 952 static __inline bool 953 ieee80211_is_reassoc_resp(__le16 fc) 954 { 955 __le16 v; 956 957 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 958 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 959 960 return (fc == v); 961 } 962 963 static __inline bool 964 ieee80211_is_disassoc(__le16 fc) 965 { 966 __le16 v; 967 968 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 969 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT); 970 971 return (fc == v); 972 } 973 974 static __inline bool 975 ieee80211_is_data_present(__le16 fc) 976 { 977 __le16 v; 978 979 /* If it is a data frame and NODATA is not present. */ 980 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA); 981 v = htole16(IEEE80211_FC0_TYPE_DATA); 982 983 return (fc == v); 984 } 985 986 static __inline bool 987 ieee80211_is_deauth(__le16 fc) 988 { 989 __le16 v; 990 991 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 992 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT); 993 994 return (fc == v); 995 } 996 997 static __inline bool 998 ieee80211_is_beacon(__le16 fc) 999 { 1000 __le16 v; 1001 1002 /* 1003 * For as much as I get it this comes in LE and unlike FreeBSD 1004 * where we get the entire frame header and u8[], here we get the 1005 * 9.2.4.1 Frame Control field only. Mask and compare. 1006 */ 1007 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1008 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT); 1009 1010 return (fc == v); 1011 } 1012 1013 1014 static __inline bool 1015 ieee80211_is_probe_req(__le16 fc) 1016 { 1017 __le16 v; 1018 1019 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1020 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT); 1021 1022 return (fc == v); 1023 } 1024 1025 static __inline bool 1026 ieee80211_has_protected(__le16 fc) 1027 { 1028 1029 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8)); 1030 } 1031 1032 static __inline bool 1033 ieee80211_is_back_req(__le16 fc) 1034 { 1035 __le16 v; 1036 1037 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1038 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL); 1039 1040 return (fc == v); 1041 } 1042 1043 static __inline bool 1044 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb) 1045 { 1046 struct ieee80211_mgmt *mgmt; 1047 __le16 fc; 1048 1049 mgmt = (struct ieee80211_mgmt *)skb->data; 1050 fc = mgmt->frame_control; 1051 1052 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */ 1053 /* XXX we do not care about IBSS yet. */ 1054 1055 if (!ieee80211_is_mgmt(fc)) 1056 return (false); 1057 if (ieee80211_is_action(fc)) /* XXX FTM? */ 1058 return (true); /* XXX false? */ 1059 if (ieee80211_is_disassoc(fc)) 1060 return (true); 1061 if (ieee80211_is_deauth(fc)) 1062 return (true); 1063 1064 TODO(); 1065 1066 return (false); 1067 } 1068 1069 static __inline bool 1070 ieee80211_is_nullfunc(__le16 fc) 1071 { 1072 __le16 v; 1073 1074 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1075 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA); 1076 1077 return (fc == v); 1078 } 1079 1080 static __inline bool 1081 ieee80211_is_qos_nullfunc(__le16 fc) 1082 { 1083 __le16 v; 1084 1085 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1086 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA); 1087 1088 return (fc == v); 1089 } 1090 1091 static __inline bool 1092 ieee80211_is_any_nullfunc(__le16 fc) 1093 { 1094 1095 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)); 1096 } 1097 1098 static inline bool 1099 ieee80211_is_pspoll(__le16 fc) 1100 { 1101 __le16 v; 1102 1103 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1104 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL); 1105 1106 return (fc == v); 1107 } 1108 1109 static __inline bool 1110 ieee80211_has_a4(__le16 fc) 1111 { 1112 __le16 v; 1113 1114 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1115 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1116 1117 return (fc == v); 1118 } 1119 1120 static __inline bool 1121 ieee80211_has_order(__le16 fc) 1122 { 1123 1124 return (fc & htole16(IEEE80211_FC1_ORDER << 8)); 1125 } 1126 1127 static __inline bool 1128 ieee80211_has_retry(__le16 fc) 1129 { 1130 1131 return (fc & htole16(IEEE80211_FC1_RETRY << 8)); 1132 } 1133 1134 1135 static __inline bool 1136 ieee80211_has_fromds(__le16 fc) 1137 { 1138 1139 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8)); 1140 } 1141 1142 static __inline bool 1143 ieee80211_has_tods(__le16 fc) 1144 { 1145 1146 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8)); 1147 } 1148 1149 static __inline uint8_t * 1150 ieee80211_get_SA(struct ieee80211_hdr *hdr) 1151 { 1152 1153 if (ieee80211_has_a4(hdr->frame_control)) 1154 return (hdr->addr4); 1155 if (ieee80211_has_fromds(hdr->frame_control)) 1156 return (hdr->addr3); 1157 return (hdr->addr2); 1158 } 1159 1160 static __inline uint8_t * 1161 ieee80211_get_DA(struct ieee80211_hdr *hdr) 1162 { 1163 1164 if (ieee80211_has_tods(hdr->frame_control)) 1165 return (hdr->addr3); 1166 return (hdr->addr1); 1167 } 1168 1169 static __inline bool 1170 ieee80211_is_frag(struct ieee80211_hdr *hdr) 1171 { 1172 TODO(); 1173 return (false); 1174 } 1175 1176 static __inline bool 1177 ieee80211_is_first_frag(__le16 fc) 1178 { 1179 TODO(); 1180 return (false); 1181 } 1182 1183 static __inline bool 1184 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb) 1185 { 1186 TODO(); 1187 return (false); 1188 } 1189 1190 static __inline bool 1191 ieee80211_is_ftm(struct sk_buff *skb) 1192 { 1193 TODO(); 1194 return (false); 1195 } 1196 1197 static __inline bool 1198 ieee80211_is_timing_measurement(struct sk_buff *skb) 1199 { 1200 TODO(); 1201 return (false); 1202 } 1203 1204 static __inline bool 1205 ieee80211_has_pm(__le16 fc) 1206 { 1207 TODO(); 1208 return (false); 1209 } 1210 1211 static __inline bool 1212 ieee80211_has_morefrags(__le16 fc) 1213 { 1214 1215 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8); 1216 return (fc != 0); 1217 } 1218 1219 static __inline u8 * 1220 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1221 { 1222 if (ieee80211_has_a4(hdr->frame_control)) 1223 return (u8 *)hdr + 30; 1224 else 1225 return (u8 *)hdr + 24; 1226 } 1227 1228 1229 #endif /* _LINUXKPI_LINUX_IEEE80211_H */ 1230