1 /*- 2 * Copyright (c) 2020-2024 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 68 #define IEEE80211_MAX_PN_LEN 16 69 70 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1) 71 72 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX 73 #define IEEE80211_MAX_AMPDU_BUF_HE 256 74 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024 75 76 #define IEEE80211_MAX_FRAME_LEN 2352 77 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN) 78 79 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */ 80 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839 81 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935 82 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895 83 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991 84 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454 85 86 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */ 87 88 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */ 89 90 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */ 91 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f 92 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7) 93 94 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */ 95 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007 96 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID 97 #define IEEE80211_QOS_CTL_EOSP 0x0010 98 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080 99 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060 100 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020 101 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100 102 103 enum ieee80211_rate_flags { 104 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0), 105 }; 106 107 enum ieee80211_rate_control_changed_flags { 108 IEEE80211_RC_BW_CHANGED = BIT(0), 109 IEEE80211_RC_NSS_CHANGED = BIT(1), 110 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), 111 IEEE80211_RC_SMPS_CHANGED = BIT(3), 112 }; 113 114 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK 115 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK 116 117 #define IEEE80211_TKIP_ICV_LEN 4 118 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */ 119 120 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */ 121 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */ 122 123 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */ 124 125 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */ 126 #define IEEE80211_WEP_ICV_LEN 4 127 128 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */ 129 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */ 130 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */ 131 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */ 132 133 enum wlan_ht_cap_sm_ps { 134 WLAN_HT_CAP_SM_PS_STATIC = 0, 135 WLAN_HT_CAP_SM_PS_DYNAMIC, 136 WLAN_HT_CAP_SM_PS_INVALID, 137 WLAN_HT_CAP_SM_PS_DISABLED, 138 }; 139 140 #define WLAN_MAX_KEY_LEN 32 141 #define WLAN_PMKID_LEN 16 142 #define WLAN_PMK_LEN_SUITE_B_192 48 143 144 enum ieee80211_key_len { 145 WLAN_KEY_LEN_WEP40 = 5, 146 WLAN_KEY_LEN_WEP104 = 13, 147 WLAN_KEY_LEN_TKIP = 32, 148 WLAN_KEY_LEN_CCMP = 16, 149 WLAN_KEY_LEN_GCMP = 16, 150 WLAN_KEY_LEN_AES_CMAC = 16, 151 WLAN_KEY_LEN_GCMP_256 = 32, 152 WLAN_KEY_LEN_BIP_CMAC_256 = 32, 153 WLAN_KEY_LEN_BIP_GMAC_128 = 16, 154 WLAN_KEY_LEN_BIP_GMAC_256 = 32, 155 }; 156 157 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */ 158 enum ieee80211_min_mpdu_start_spacing { 159 IEEE80211_HT_MPDU_DENSITY_NONE = 0, 160 #if 0 161 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */ 162 #endif 163 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */ 164 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */ 165 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */ 166 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */ 167 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */ 168 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */ 169 }; 170 171 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */ 172 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */ 173 174 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK 175 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK 176 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8) 177 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8) 178 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8) 179 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8) 180 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8) 181 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8) 182 183 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT 184 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL 185 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA 186 187 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ 188 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ 189 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ 190 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC 191 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH 192 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH 193 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS 194 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS 195 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION 196 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA 197 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA 198 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL 199 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */ 200 201 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */ 202 203 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */ 204 205 206 /* Figure 9-27, BAR Control field */ 207 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000 208 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12 209 210 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */ 211 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */ 212 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */ 213 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */ 214 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */ 215 216 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */ 217 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */ 218 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */ 219 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */ 220 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */ 221 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */ 222 223 224 /* 9.6.13.1, Table 9-342 TDLS Action field values. */ 225 enum ieee80211_tdls_action_code { 226 WLAN_TDLS_SETUP_REQUEST = 0, 227 WLAN_TDLS_SETUP_RESPONSE = 1, 228 WLAN_TDLS_SETUP_CONFIRM = 2, 229 WLAN_TDLS_TEARDOWN = 3, 230 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4, 231 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5, 232 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6, 233 WLAN_TDLS_PEER_PSM_REQUEST = 7, 234 WLAN_TDLS_PEER_PSM_RESPONSE = 8, 235 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9, 236 WLAN_TDLS_DISCOVERY_REQUEST = 10, 237 /* 11-255 reserved */ 238 }; 239 240 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */ 241 /* This is split up into octets CAPA1 = octet 1, ... */ 242 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8) 243 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8) 244 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8) 245 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8) 246 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8) 247 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8) 248 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8) 249 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8) 250 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8) 251 252 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */ 253 254 255 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */ 256 /* Would be so much easier if we'd define constants to the same. */ 257 enum ieee80211_ac_numbers { 258 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */ 259 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */ 260 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */ 261 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */ 262 }; 263 264 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */ 265 266 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1 267 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2 268 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4 269 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8 270 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf 271 272 273 /* Define the LinuxKPI names directly to the net80211 ones. */ 274 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC 275 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40 276 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS 277 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2 278 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD 279 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20 280 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40 281 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC 282 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC 283 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S 284 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU 285 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40 286 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT 287 288 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001 289 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002 290 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2 291 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c 292 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff 293 #define IEEE80211_HT_MCS_MASK_LEN 10 294 295 #define IEEE80211_MLD_MAX_NUM_LINKS 15 296 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060 297 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1 298 299 struct ieee80211_mcs_info { 300 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN]; 301 uint16_t rx_highest; 302 uint8_t tx_params; 303 uint8_t __reserved[3]; 304 }; 305 306 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */ 307 struct ieee80211_ht_cap { 308 uint16_t cap_info; 309 uint8_t ampdu_params_info; 310 struct ieee80211_mcs_info mcs; 311 uint16_t extended_ht_cap_info; 312 uint32_t tx_BF_cap_info; 313 uint8_t antenna_selection_info; 314 }; 315 316 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13 317 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16 318 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20 319 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13 320 321 enum ieee80211_ht_max_ampdu_len { 322 IEEE80211_HT_MAX_AMPDU_64K 323 }; 324 325 enum ieee80211_ampdu_mlme_action { 326 IEEE80211_AMPDU_RX_START, 327 IEEE80211_AMPDU_RX_STOP, 328 IEEE80211_AMPDU_TX_OPERATIONAL, 329 IEEE80211_AMPDU_TX_START, 330 IEEE80211_AMPDU_TX_STOP_CONT, 331 IEEE80211_AMPDU_TX_STOP_FLUSH, 332 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT 333 }; 334 335 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1 336 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2 337 338 enum ieee80211_chanctx_switch_mode { 339 CHANCTX_SWMODE_REASSIGN_VIF, 340 CHANCTX_SWMODE_SWAP_CONTEXTS, 341 }; 342 343 enum ieee80211_chanctx_change_flags { 344 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0), 345 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1), 346 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2), 347 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3), 348 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4), 349 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5), 350 }; 351 352 enum ieee80211_frame_release_type { 353 IEEE80211_FRAME_RELEASE_PSPOLL = 1, 354 IEEE80211_FRAME_RELEASE_UAPSD = 2, 355 }; 356 357 enum ieee80211_p2p_attr_ids { 358 IEEE80211_P2P_ATTR_DEVICE_ID, 359 IEEE80211_P2P_ATTR_DEVICE_INFO, 360 IEEE80211_P2P_ATTR_GROUP_ID, 361 IEEE80211_P2P_ATTR_LISTEN_CHANNEL, 362 IEEE80211_P2P_ATTR_ABSENCE_NOTICE, 363 }; 364 365 enum ieee80211_reconfig_type { 366 IEEE80211_RECONFIG_TYPE_RESTART, 367 IEEE80211_RECONFIG_TYPE_SUSPEND, 368 }; 369 370 enum ieee80211_roc_type { 371 IEEE80211_ROC_TYPE_MGMT_TX, 372 IEEE80211_ROC_TYPE_NORMAL, 373 }; 374 375 enum ieee80211_smps_mode { 376 IEEE80211_SMPS_OFF, 377 IEEE80211_SMPS_STATIC, 378 IEEE80211_SMPS_DYNAMIC, 379 IEEE80211_SMPS_AUTOMATIC, 380 IEEE80211_SMPS_NUM_MODES, 381 }; 382 383 /* net80211::IEEE80211_S_* different but represents the state machine. */ 384 /* Note: order here is important! */ 385 enum ieee80211_sta_state { 386 IEEE80211_STA_NOTEXIST = 0, 387 IEEE80211_STA_NONE = 1, 388 IEEE80211_STA_AUTH = 2, 389 IEEE80211_STA_ASSOC = 3, 390 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */ 391 }; 392 393 enum ieee80211_tx_info_flags { 394 /* XXX TODO .. right shift numbers - not sure where that came from? */ 395 IEEE80211_TX_CTL_AMPDU = BIT(0), 396 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), 397 IEEE80211_TX_CTL_NO_ACK = BIT(2), 398 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3), 399 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4), 400 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5), 401 IEEE80211_TX_STATUS_EOSP = BIT(6), 402 IEEE80211_TX_STAT_ACK = BIT(7), 403 IEEE80211_TX_STAT_AMPDU = BIT(8), 404 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9), 405 IEEE80211_TX_STAT_TX_FILTERED = BIT(10), 406 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11), 407 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12), 408 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13), 409 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14), 410 IEEE80211_TX_CTL_INJECTED = BIT(15), 411 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16), 412 IEEE80211_TX_CTL_USE_MINRATE = BIT(17), 413 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18), 414 IEEE80211_TX_CTL_LDPC = BIT(19), 415 IEEE80211_TX_CTL_STBC = BIT(20), 416 } __packed; 417 418 enum ieee80211_tx_status_flags { 419 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0), 420 }; 421 422 enum ieee80211_tx_control_flags { 423 /* XXX TODO .. right shift numbers */ 424 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0), 425 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1), 426 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2), 427 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */ 428 }; 429 430 enum ieee80211_tx_rate_flags { 431 /* XXX TODO .. right shift numbers */ 432 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0), 433 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1), 434 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2), 435 IEEE80211_TX_RC_GREEN_FIELD = BIT(3), 436 IEEE80211_TX_RC_MCS = BIT(4), 437 IEEE80211_TX_RC_SHORT_GI = BIT(5), 438 IEEE80211_TX_RC_VHT_MCS = BIT(6), 439 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7), 440 }; 441 442 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128 443 444 #define IEEE80211_HT_CTL_LEN 4 445 446 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */ 447 __le16 frame_control; 448 __le16 duration_id; 449 uint8_t addr1[ETH_ALEN]; 450 uint8_t addr2[ETH_ALEN]; 451 uint8_t addr3[ETH_ALEN]; 452 __le16 seq_ctrl; 453 uint8_t addr4[ETH_ALEN]; 454 }; 455 456 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */ 457 __le16 frame_control; 458 __le16 duration_id; 459 uint8_t addr1[ETH_ALEN]; 460 uint8_t addr2[ETH_ALEN]; 461 uint8_t addr3[ETH_ALEN]; 462 __le16 seq_ctrl; 463 }; 464 465 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */ 466 __le16 frame_control; 467 __le16 duration_id; 468 uint8_t addr1[ETH_ALEN]; 469 uint8_t addr2[ETH_ALEN]; 470 uint8_t addr3[ETH_ALEN]; 471 __le16 seq_ctrl; 472 __le16 qos_ctrl; 473 }; 474 475 struct ieee80211_vendor_ie { 476 }; 477 478 /* 802.11-2020, Table 9-359-Block Ack Action field values */ 479 enum ieee80211_back { 480 WLAN_ACTION_ADDBA_REQ = 0, 481 }; 482 483 enum ieee80211_sa_query { 484 WLAN_ACTION_SA_QUERY_RESPONSE = 1, 485 }; 486 487 /* 802.11-2020, Table 9-51-Category values */ 488 enum ieee80211_category { 489 WLAN_CATEGORY_BACK = 3, 490 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */ 491 }; 492 493 /* 80211-2020 9.3.3.2 Format of Management frames */ 494 struct ieee80211_mgmt { 495 __le16 frame_control; 496 __le16 duration_id; 497 uint8_t da[ETH_ALEN]; 498 uint8_t sa[ETH_ALEN]; 499 uint8_t bssid[ETH_ALEN]; 500 __le16 seq_ctrl; 501 union { 502 /* 9.3.3.3 Beacon frame format */ 503 struct { 504 uint64_t timestamp; 505 uint16_t beacon_int; 506 uint16_t capab_info; 507 uint8_t variable[0]; 508 } beacon; 509 /* 9.3.3.10 Probe Request frame format */ 510 struct { 511 uint8_t variable[0]; 512 } probe_req; 513 /* 9.3.3.11 Probe Response frame format */ 514 struct { 515 uint64_t timestamp; 516 uint16_t beacon_int; 517 uint16_t capab_info; 518 uint8_t variable[0]; 519 } probe_resp; 520 /* 9.3.3.14 Action frame format */ 521 struct { 522 /* 9.4.1.11 Action field */ 523 uint8_t category; 524 /* 9.6.8 Public Action details */ 525 union { 526 /* 9.6.2.5 TPC Report frame format */ 527 struct { 528 uint8_t spec_mgmt; 529 uint8_t dialog_token; 530 /* uint32_t tpc_rep_elem:: */ 531 uint8_t tpc_elem_id; 532 uint8_t tpc_elem_length; 533 uint8_t tpc_elem_tx_power; 534 uint8_t tpc_elem_link_margin; 535 } tpc_report; 536 /* 9.6.8.33 Fine Timing Measurement frame format */ 537 struct { 538 uint8_t dialog_token; 539 uint8_t follow_up; 540 uint8_t tod[6]; 541 uint8_t toa[6]; 542 uint16_t tod_error; 543 uint16_t toa_error; 544 uint8_t variable[0]; 545 } ftm; 546 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */ 547 struct { 548 uint8_t action_code; 549 uint8_t dialog_token; 550 uint16_t capab; 551 uint16_t timeout; 552 uint16_t start_seq_num; 553 /* Optional follows... */ 554 uint8_t variable[0]; 555 } addba_req; 556 /* XXX */ 557 struct { 558 uint8_t dialog_token; 559 } wnm_timing_msr; 560 } u; 561 } action; 562 DECLARE_FLEX_ARRAY(uint8_t, body); 563 } u; 564 }; 565 566 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */ 567 __le16 frame_control; 568 __le16 duration; 569 uint8_t ra[ETH_ALEN]; 570 } __packed; 571 572 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */ 573 __le16 frame_control; 574 __le16 duration; 575 uint8_t ra[ETH_ALEN]; 576 uint8_t ta[ETH_ALEN]; 577 } __packed; 578 579 #define MHZ_TO_KHZ(_f) ((_f) * 1000) 580 #define DBI_TO_MBI(_g) ((_g) * 100) 581 #define MBI_TO_DBI(_x) ((_x) / 100) 582 #define DBM_TO_MBM(_g) ((_g) * 100) 583 #define MBM_TO_DBM(_x) ((_x) / 100) 584 585 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \ 586 IEEE80211_SEQ_SEQ_SHIFT) 587 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \ 588 IEEE80211_SEQ_SEQ_MASK) 589 590 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */ 591 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024) 592 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu)) 593 594 /* 9.4.2.21.1, Table 9-82. */ 595 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8 596 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11 597 598 /* 9.4.2.1, Table 9-77. Element IDs. */ 599 enum ieee80211_eid { 600 WLAN_EID_SSID = 0, 601 WLAN_EID_SUPP_RATES = 1, 602 WLAN_EID_DS_PARAMS = 3, 603 WLAN_EID_TIM = 5, 604 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */ 605 WLAN_EID_REQUEST = 10, 606 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */ 607 WLAN_EID_CHANNEL_SWITCH = 37, 608 WLAN_EID_MEASURE_REPORT = 39, 609 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */ 610 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */ 611 WLAN_EID_EXT_SUPP_RATES = 50, 612 WLAN_EID_EXT_NON_INHERITANCE = 56, 613 WLAN_EID_EXT_CHANSWITCH_ANN = 60, 614 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */ 615 WLAN_EID_MULTI_BSSID_IDX = 85, 616 WLAN_EID_EXT_CAPABILITY = 127, 617 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */ 618 WLAN_EID_S1G_TWT = 216, 619 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */ 620 }; 621 622 enum ieee80211_eid_ext { 623 WLAN_EID_EXT_HE_CAPABILITY = 35, 624 }; 625 626 #define for_each_element(_elem, _data, _len) \ 627 for (_elem = (const struct element *)(_data); \ 628 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \ 629 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \ 630 _elem = (const struct element *)(_elem->data + _elem->datalen)) 631 632 #define for_each_element_id(_elem, _eid, _data, _len) \ 633 for_each_element(_elem, _data, _len) \ 634 if (_elem->id == (_eid)) 635 636 /* 9.4.1.7, Table 9-45. Reason codes. */ 637 enum ieee80211_reason_code { 638 /* reserved = 0, */ 639 WLAN_REASON_UNSPECIFIED = 1, 640 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */ 641 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25, 642 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26, 643 }; 644 645 /* 9.4.1.9, Table 9-46. Status codes. */ 646 enum ieee80211_status_code { 647 WLAN_STATUS_SUCCESS = 0, 648 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */ 649 }; 650 651 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */ 652 struct ieee80211_trigger { 653 __le16 frame_control; 654 __le16 duration_id; 655 uint8_t ra[ETH_ALEN]; 656 uint8_t ta[ETH_ALEN]; 657 __le64 common_info; /* 8+ really */ 658 uint8_t variable[]; 659 }; 660 661 /* Table 9-29c-Trigger Type subfield encoding */ 662 enum { 663 IEEE80211_TRIGGER_TYPE_BASIC = 0x0, 664 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2, 665 #if 0 666 /* Not seen yet. */ 667 BFRP = 0x1, 668 MU-RTS = 0x3, 669 BSRP = 0x4, 670 GCR MU-BAR = 0x5, 671 BQRP = 0x6, 672 NFRP = 0x7, 673 /* 0x8..0xf reserved */ 674 #endif 675 IEEE80211_TRIGGER_TYPE_MASK = 0xf 676 }; 677 678 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000 679 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0 680 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1 681 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2 682 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3 683 684 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */ 685 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3) 686 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4) 687 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5) 688 689 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */ 690 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3)) 691 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4) 692 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5) 693 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6) 694 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9)) 695 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14)) 696 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15) 697 698 struct ieee80211_twt_params { 699 int mantissa, min_twt_dur, twt; 700 uint16_t req_type; 701 }; 702 703 struct ieee80211_twt_setup { 704 int control; 705 struct ieee80211_twt_params *params; 706 }; 707 708 /* 802.11-2020, Table 9-297-TWT Setup Command field values */ 709 enum ieee80211_twt_setup_cmd { 710 TWT_SETUP_CMD_REQUEST = 0, 711 TWT_SETUP_CMD_SUGGEST = 1, 712 /* DEMAND = 2, */ 713 /* GROUPING = 3, */ 714 TWT_SETUP_CMD_ACCEPT = 4, 715 /* ALTERNATE = 5 */ 716 TWT_SETUP_CMD_DICTATE = 6, 717 TWT_SETUP_CMD_REJECT = 7, 718 }; 719 720 struct ieee80211_bssid_index { 721 int bssid_index; 722 }; 723 724 enum ieee80211_ap_reg_power { 725 IEEE80211_REG_UNSET_AP, 726 IEEE80211_REG_LPI_AP, 727 IEEE80211_REG_SP_AP, 728 IEEE80211_REG_VLP_AP, 729 }; 730 731 /* 732 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield 733 * if Maximum Transmit Power Interpretation subfield is 1 or 3 734 */ 735 #define IEEE80211_MAX_NUM_PWR_LEVEL 8 736 737 /* 738 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 739 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the 740 * United States (2) 741 */ 742 #define IEEE80211_TPE_MAX_IE_NUM 8 743 744 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */ 745 struct ieee80211_tx_pwr_env { 746 uint8_t tx_power_info; 747 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL]; 748 }; 749 750 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */ 751 /* These are field masks (3bit/3bit/2bit). */ 752 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07 753 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38 754 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0 755 756 /* 757 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield 758 * encoding 759 */ 760 enum ieee80211_tx_pwr_interpretation_subfield_enc { 761 IEEE80211_TPE_LOCAL_EIRP, 762 IEEE80211_TPE_LOCAL_EIRP_PSD, 763 IEEE80211_TPE_REG_CLIENT_EIRP, 764 IEEE80211_TPE_REG_CLIENT_EIRP_PSD, 765 }; 766 767 enum ieee80211_tx_pwr_category_6ghz { 768 IEEE80211_TPE_CAT_6GHZ_DEFAULT, 769 }; 770 771 /* 802.11-2020, 9.4.2.27 BSS Load element */ 772 struct ieee80211_bss_load_elem { 773 uint16_t sta_count; 774 uint8_t channel_util; 775 uint16_t avail_adm_capa; 776 }; 777 778 /* net80211: IEEE80211_IS_CTL() */ 779 static __inline bool 780 ieee80211_is_ctl(__le16 fc) 781 { 782 __le16 v; 783 784 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 785 v = htole16(IEEE80211_FC0_TYPE_CTL); 786 787 return (fc == v); 788 } 789 790 /* net80211: IEEE80211_IS_DATA() */ 791 static __inline bool 792 ieee80211_is_data(__le16 fc) 793 { 794 __le16 v; 795 796 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 797 v = htole16(IEEE80211_FC0_TYPE_DATA); 798 799 return (fc == v); 800 } 801 802 /* net80211: IEEE80211_IS_QOSDATA() */ 803 static __inline bool 804 ieee80211_is_data_qos(__le16 fc) 805 { 806 __le16 v; 807 808 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK); 809 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA); 810 811 return (fc == v); 812 } 813 814 /* net80211: IEEE80211_IS_MGMT() */ 815 static __inline bool 816 ieee80211_is_mgmt(__le16 fc) 817 { 818 __le16 v; 819 820 fc &= htole16(IEEE80211_FC0_TYPE_MASK); 821 v = htole16(IEEE80211_FC0_TYPE_MGT); 822 823 return (fc == v); 824 } 825 826 827 /* Derived from net80211::ieee80211_anyhdrsize. */ 828 static __inline unsigned int 829 ieee80211_hdrlen(__le16 fc) 830 { 831 unsigned int size; 832 833 if (ieee80211_is_ctl(fc)) { 834 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) { 835 case htole16(IEEE80211_FC0_SUBTYPE_CTS): 836 case htole16(IEEE80211_FC0_SUBTYPE_ACK): 837 return sizeof(struct ieee80211_frame_ack); 838 case htole16(IEEE80211_FC0_SUBTYPE_BAR): 839 return sizeof(struct ieee80211_frame_bar); 840 } 841 return (sizeof(struct ieee80211_frame_min)); 842 } 843 844 size = sizeof(struct ieee80211_frame); 845 if (ieee80211_is_data(fc)) { 846 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) == 847 htole16(IEEE80211_FC1_DIR_DSTODS << 8)) 848 size += IEEE80211_ADDR_LEN; 849 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 850 IEEE80211_FC0_TYPE_MASK)) == 851 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | 852 IEEE80211_FC0_TYPE_DATA)) 853 size += sizeof(uint16_t); 854 } 855 856 if (ieee80211_is_mgmt(fc)) { 857 #ifdef __notyet__ 858 printf("XXX-BZ %s: TODO? fc %#04x size %u\n", 859 __func__, fc, size); 860 #endif 861 ; 862 } 863 864 return (size); 865 } 866 867 static inline bool 868 ieee80211_is_trigger(__le16 fc) 869 { 870 __le16 v; 871 872 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 873 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL); 874 875 return (fc == v); 876 } 877 878 static __inline bool 879 ieee80211_is_action(__le16 fc) 880 { 881 __le16 v; 882 883 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 884 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT); 885 886 return (fc == v); 887 } 888 889 static __inline bool 890 ieee80211_is_probe_resp(__le16 fc) 891 { 892 __le16 v; 893 894 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 895 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT); 896 897 return (fc == v); 898 } 899 900 static __inline bool 901 ieee80211_is_auth(__le16 fc) 902 { 903 __le16 v; 904 905 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 906 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT); 907 908 return (fc == v); 909 } 910 911 static __inline bool 912 ieee80211_is_assoc_req(__le16 fc) 913 { 914 __le16 v; 915 916 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 917 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 918 919 return (fc == v); 920 } 921 922 static __inline bool 923 ieee80211_is_assoc_resp(__le16 fc) 924 { 925 __le16 v; 926 927 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 928 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 929 930 return (fc == v); 931 } 932 933 static __inline bool 934 ieee80211_is_reassoc_req(__le16 fc) 935 { 936 __le16 v; 937 938 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 939 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT); 940 941 return (fc == v); 942 } 943 944 static __inline bool 945 ieee80211_is_reassoc_resp(__le16 fc) 946 { 947 __le16 v; 948 949 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 950 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT); 951 952 return (fc == v); 953 } 954 955 static __inline bool 956 ieee80211_is_disassoc(__le16 fc) 957 { 958 __le16 v; 959 960 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 961 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT); 962 963 return (fc == v); 964 } 965 966 static __inline bool 967 ieee80211_is_data_present(__le16 fc) 968 { 969 __le16 v; 970 971 /* If it is a data frame and NODATA is not present. */ 972 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA); 973 v = htole16(IEEE80211_FC0_TYPE_DATA); 974 975 return (fc == v); 976 } 977 978 static __inline bool 979 ieee80211_is_deauth(__le16 fc) 980 { 981 __le16 v; 982 983 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 984 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT); 985 986 return (fc == v); 987 } 988 989 static __inline bool 990 ieee80211_is_beacon(__le16 fc) 991 { 992 __le16 v; 993 994 /* 995 * For as much as I get it this comes in LE and unlike FreeBSD 996 * where we get the entire frame header and u8[], here we get the 997 * 9.2.4.1 Frame Control field only. Mask and compare. 998 */ 999 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1000 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT); 1001 1002 return (fc == v); 1003 } 1004 1005 1006 static __inline bool 1007 ieee80211_is_probe_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_PROBE_REQ | IEEE80211_FC0_TYPE_MGT); 1013 1014 return (fc == v); 1015 } 1016 1017 static __inline bool 1018 ieee80211_has_protected(__le16 fc) 1019 { 1020 1021 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8)); 1022 } 1023 1024 static __inline bool 1025 ieee80211_is_back_req(__le16 fc) 1026 { 1027 __le16 v; 1028 1029 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1030 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL); 1031 1032 return (fc == v); 1033 } 1034 1035 static __inline bool 1036 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb) 1037 { 1038 struct ieee80211_mgmt *mgmt; 1039 __le16 fc; 1040 1041 mgmt = (struct ieee80211_mgmt *)skb->data; 1042 fc = mgmt->frame_control; 1043 1044 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */ 1045 /* XXX we do not care about IBSS yet. */ 1046 1047 if (!ieee80211_is_mgmt(fc)) 1048 return (false); 1049 if (ieee80211_is_action(fc)) /* XXX FTM? */ 1050 return (true); /* XXX false? */ 1051 if (ieee80211_is_disassoc(fc)) 1052 return (true); 1053 if (ieee80211_is_deauth(fc)) 1054 return (true); 1055 1056 TODO(); 1057 1058 return (false); 1059 } 1060 1061 static __inline bool 1062 ieee80211_is_nullfunc(__le16 fc) 1063 { 1064 __le16 v; 1065 1066 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1067 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA); 1068 1069 return (fc == v); 1070 } 1071 1072 static __inline bool 1073 ieee80211_is_qos_nullfunc(__le16 fc) 1074 { 1075 __le16 v; 1076 1077 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1078 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA); 1079 1080 return (fc == v); 1081 } 1082 1083 static __inline bool 1084 ieee80211_is_any_nullfunc(__le16 fc) 1085 { 1086 1087 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc)); 1088 } 1089 1090 static inline bool 1091 ieee80211_is_pspoll(__le16 fc) 1092 { 1093 __le16 v; 1094 1095 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK); 1096 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL); 1097 1098 return (fc == v); 1099 } 1100 1101 static __inline bool 1102 ieee80211_has_a4(__le16 fc) 1103 { 1104 __le16 v; 1105 1106 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1107 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8); 1108 1109 return (fc == v); 1110 } 1111 1112 static __inline bool 1113 ieee80211_has_order(__le16 fc) 1114 { 1115 1116 return (fc & htole16(IEEE80211_FC1_ORDER << 8)); 1117 } 1118 1119 static __inline bool 1120 ieee80211_has_retry(__le16 fc) 1121 { 1122 1123 return (fc & htole16(IEEE80211_FC1_RETRY << 8)); 1124 } 1125 1126 1127 static __inline bool 1128 ieee80211_has_fromds(__le16 fc) 1129 { 1130 1131 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8)); 1132 } 1133 1134 static __inline bool 1135 ieee80211_has_tods(__le16 fc) 1136 { 1137 1138 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8)); 1139 } 1140 1141 static __inline uint8_t * 1142 ieee80211_get_SA(struct ieee80211_hdr *hdr) 1143 { 1144 1145 if (ieee80211_has_a4(hdr->frame_control)) 1146 return (hdr->addr4); 1147 if (ieee80211_has_fromds(hdr->frame_control)) 1148 return (hdr->addr3); 1149 return (hdr->addr2); 1150 } 1151 1152 static __inline uint8_t * 1153 ieee80211_get_DA(struct ieee80211_hdr *hdr) 1154 { 1155 1156 if (ieee80211_has_tods(hdr->frame_control)) 1157 return (hdr->addr3); 1158 return (hdr->addr1); 1159 } 1160 1161 static __inline bool 1162 ieee80211_is_frag(struct ieee80211_hdr *hdr) 1163 { 1164 TODO(); 1165 return (false); 1166 } 1167 1168 static __inline bool 1169 ieee80211_is_first_frag(__le16 fc) 1170 { 1171 TODO(); 1172 return (false); 1173 } 1174 1175 static __inline bool 1176 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb) 1177 { 1178 TODO(); 1179 return (false); 1180 } 1181 1182 static __inline bool 1183 ieee80211_is_ftm(struct sk_buff *skb) 1184 { 1185 TODO(); 1186 return (false); 1187 } 1188 1189 static __inline bool 1190 ieee80211_is_timing_measurement(struct sk_buff *skb) 1191 { 1192 TODO(); 1193 return (false); 1194 } 1195 1196 static __inline bool 1197 ieee80211_has_pm(__le16 fc) 1198 { 1199 TODO(); 1200 return (false); 1201 } 1202 1203 static __inline bool 1204 ieee80211_has_morefrags(__le16 fc) 1205 { 1206 1207 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8); 1208 return (fc != 0); 1209 } 1210 1211 static __inline u8 * 1212 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr) 1213 { 1214 if (ieee80211_has_a4(hdr->frame_control)) 1215 return (u8 *)hdr + 30; 1216 else 1217 return (u8 *)hdr + 24; 1218 } 1219 1220 1221 #endif /* _LINUXKPI_LINUX_IEEE80211_H */ 1222