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