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 IEEE80211_CHANCTX_CHANGE_MIN_DEF = BIT(6),
353 };
354
355 enum ieee80211_frame_release_type {
356 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
357 IEEE80211_FRAME_RELEASE_UAPSD = 2,
358 };
359
360 enum ieee80211_p2p_attr_ids {
361 IEEE80211_P2P_ATTR_DEVICE_ID,
362 IEEE80211_P2P_ATTR_DEVICE_INFO,
363 IEEE80211_P2P_ATTR_GROUP_ID,
364 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
365 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
366 };
367
368 enum ieee80211_reconfig_type {
369 IEEE80211_RECONFIG_TYPE_RESTART,
370 IEEE80211_RECONFIG_TYPE_SUSPEND,
371 };
372
373 enum ieee80211_roc_type {
374 IEEE80211_ROC_TYPE_MGMT_TX,
375 IEEE80211_ROC_TYPE_NORMAL,
376 };
377
378 enum ieee80211_smps_mode {
379 IEEE80211_SMPS_OFF,
380 IEEE80211_SMPS_STATIC,
381 IEEE80211_SMPS_DYNAMIC,
382 IEEE80211_SMPS_AUTOMATIC,
383 IEEE80211_SMPS_NUM_MODES,
384 };
385
386 /* net80211::IEEE80211_S_* different but represents the state machine. */
387 /* Note: order here is important! */
388 enum ieee80211_sta_state {
389 IEEE80211_STA_NOTEXIST = 0,
390 IEEE80211_STA_NONE = 1,
391 IEEE80211_STA_AUTH = 2,
392 IEEE80211_STA_ASSOC = 3,
393 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
394 };
395
396 enum ieee80211_tx_info_flags {
397 /* XXX TODO .. right shift numbers - not sure where that came from? */
398 IEEE80211_TX_CTL_AMPDU = BIT(0),
399 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
400 IEEE80211_TX_CTL_NO_ACK = BIT(2),
401 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
402 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
403 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
404 IEEE80211_TX_STATUS_EOSP = BIT(6),
405 IEEE80211_TX_STAT_ACK = BIT(7),
406 IEEE80211_TX_STAT_AMPDU = BIT(8),
407 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
408 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
409 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
410 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
411 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
412 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
413 IEEE80211_TX_CTL_INJECTED = BIT(15),
414 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
415 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
416 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
417 IEEE80211_TX_CTL_LDPC = BIT(19),
418 IEEE80211_TX_CTL_STBC = BIT(20),
419 } __packed;
420
421 enum ieee80211_tx_status_flags {
422 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
423 };
424
425 enum ieee80211_tx_control_flags {
426 /* XXX TODO .. right shift numbers */
427 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
428 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
429 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
430 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */
431 };
432
433 enum ieee80211_tx_rate_flags {
434 /* XXX TODO .. right shift numbers */
435 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
436 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
437 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
438 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
439 IEEE80211_TX_RC_MCS = BIT(4),
440 IEEE80211_TX_RC_SHORT_GI = BIT(5),
441 IEEE80211_TX_RC_VHT_MCS = BIT(6),
442 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
443 };
444
445 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128
446
447 #define IEEE80211_HT_CTL_LEN 4
448
449 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */
450 __le16 frame_control;
451 __le16 duration_id;
452 uint8_t addr1[ETH_ALEN];
453 uint8_t addr2[ETH_ALEN];
454 uint8_t addr3[ETH_ALEN];
455 __le16 seq_ctrl;
456 uint8_t addr4[ETH_ALEN];
457 };
458
459 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */
460 __le16 frame_control;
461 __le16 duration_id;
462 uint8_t addr1[ETH_ALEN];
463 uint8_t addr2[ETH_ALEN];
464 uint8_t addr3[ETH_ALEN];
465 __le16 seq_ctrl;
466 };
467
468 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */
469 __le16 frame_control;
470 __le16 duration_id;
471 uint8_t addr1[ETH_ALEN];
472 uint8_t addr2[ETH_ALEN];
473 uint8_t addr3[ETH_ALEN];
474 __le16 seq_ctrl;
475 __le16 qos_ctrl;
476 };
477
478 struct ieee80211_vendor_ie {
479 };
480
481 /* 802.11-2020, Table 9-359-Block Ack Action field values */
482 enum ieee80211_back {
483 WLAN_ACTION_ADDBA_REQ = 0,
484 };
485
486 enum ieee80211_sa_query {
487 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
488 };
489
490 /* 802.11-2020, Table 9-51-Category values */
491 enum ieee80211_category {
492 WLAN_CATEGORY_BACK = 3,
493 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */
494 };
495
496 /* 80211-2020 9.3.3.2 Format of Management frames */
497 struct ieee80211_mgmt {
498 __le16 frame_control;
499 __le16 duration_id;
500 uint8_t da[ETH_ALEN];
501 uint8_t sa[ETH_ALEN];
502 uint8_t bssid[ETH_ALEN];
503 __le16 seq_ctrl;
504 union {
505 /* 9.3.3.3 Beacon frame format */
506 struct {
507 uint64_t timestamp;
508 uint16_t beacon_int;
509 uint16_t capab_info;
510 uint8_t variable[0];
511 } beacon;
512 /* 9.3.3.5 Association Request frame format */
513 struct {
514 uint16_t capab_info;
515 uint16_t listen_interval;
516 uint8_t variable[0];
517 } assoc_req;
518 /* 9.3.3.10 Probe Request frame format */
519 struct {
520 uint8_t variable[0];
521 } probe_req;
522 /* 9.3.3.11 Probe Response frame format */
523 struct {
524 uint64_t timestamp;
525 uint16_t beacon_int;
526 uint16_t capab_info;
527 uint8_t variable[0];
528 } probe_resp;
529 /* 9.3.3.14 Action frame format */
530 struct {
531 /* 9.4.1.11 Action field */
532 uint8_t category;
533 /* 9.6.8 Public Action details */
534 union {
535 /* 9.6.2.5 TPC Report frame format */
536 struct {
537 uint8_t spec_mgmt;
538 uint8_t dialog_token;
539 /* uint32_t tpc_rep_elem:: */
540 uint8_t tpc_elem_id;
541 uint8_t tpc_elem_length;
542 uint8_t tpc_elem_tx_power;
543 uint8_t tpc_elem_link_margin;
544 } tpc_report;
545 /* 9.6.8.33 Fine Timing Measurement frame format */
546 struct {
547 uint8_t dialog_token;
548 uint8_t follow_up;
549 uint8_t tod[6];
550 uint8_t toa[6];
551 uint16_t tod_error;
552 uint16_t toa_error;
553 uint8_t variable[0];
554 } ftm;
555 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
556 struct {
557 uint8_t action_code;
558 uint8_t dialog_token;
559 uint16_t capab;
560 uint16_t timeout;
561 uint16_t start_seq_num;
562 /* Optional follows... */
563 uint8_t variable[0];
564 } addba_req;
565 /* XXX */
566 struct {
567 uint8_t dialog_token;
568 } wnm_timing_msr;
569 } u;
570 } action;
571 DECLARE_FLEX_ARRAY(uint8_t, body);
572 } u;
573 };
574
575 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
576 __le16 frame_control;
577 __le16 duration;
578 uint8_t ra[ETH_ALEN];
579 } __packed;
580
581 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
582 __le16 frame_control;
583 __le16 duration;
584 uint8_t ra[ETH_ALEN];
585 uint8_t ta[ETH_ALEN];
586 } __packed;
587
588 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
589 #define DBI_TO_MBI(_g) ((_g) * 100)
590 #define MBI_TO_DBI(_x) ((_x) / 100)
591 #define DBM_TO_MBM(_g) ((_g) * 100)
592 #define MBM_TO_DBM(_x) ((_x) / 100)
593
594 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
595 IEEE80211_SEQ_SEQ_SHIFT)
596 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
597 IEEE80211_SEQ_SEQ_MASK)
598
599 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
600 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
601 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
602
603 /* 9.4.2.21.1, Table 9-82. */
604 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
605 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
606
607 /* 9.4.2.1, Table 9-77. Element IDs. */
608 enum ieee80211_eid {
609 WLAN_EID_SSID = 0,
610 WLAN_EID_SUPP_RATES = 1,
611 WLAN_EID_DS_PARAMS = 3,
612 WLAN_EID_TIM = 5,
613 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
614 WLAN_EID_REQUEST = 10,
615 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
616 WLAN_EID_CHANNEL_SWITCH = 37,
617 WLAN_EID_MEASURE_REPORT = 39,
618 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
619 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
620 WLAN_EID_EXT_SUPP_RATES = 50,
621 WLAN_EID_EXT_NON_INHERITANCE = 56,
622 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
623 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
624 WLAN_EID_MULTI_BSSID_IDX = 85,
625 WLAN_EID_EXT_CAPABILITY = 127,
626 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
627 WLAN_EID_S1G_TWT = 216,
628 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
629 };
630
631 enum ieee80211_eid_ext {
632 WLAN_EID_EXT_HE_CAPABILITY = 35,
633 };
634
635 #define for_each_element(_elem, _data, _len) \
636 for (_elem = (const struct element *)(_data); \
637 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
638 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
639 _elem = (const struct element *)(_elem->data + _elem->datalen))
640
641 #define for_each_element_id(_elem, _eid, _data, _len) \
642 for_each_element(_elem, _data, _len) \
643 if (_elem->id == (_eid))
644
645 /* 9.4.1.7, Table 9-45. Reason codes. */
646 enum ieee80211_reason_code {
647 /* reserved = 0, */
648 WLAN_REASON_UNSPECIFIED = 1,
649 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
650 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
651 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
652 };
653
654 /* 9.4.1.9, Table 9-46. Status codes. */
655 enum ieee80211_status_code {
656 WLAN_STATUS_SUCCESS = 0,
657 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
658 };
659
660 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
661 struct ieee80211_trigger {
662 __le16 frame_control;
663 __le16 duration_id;
664 uint8_t ra[ETH_ALEN];
665 uint8_t ta[ETH_ALEN];
666 __le64 common_info; /* 8+ really */
667 uint8_t variable[];
668 };
669
670 /* Table 9-29c-Trigger Type subfield encoding */
671 enum {
672 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
673 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
674 #if 0
675 /* Not seen yet. */
676 BFRP = 0x1,
677 MU-RTS = 0x3,
678 BSRP = 0x4,
679 GCR MU-BAR = 0x5,
680 BQRP = 0x6,
681 NFRP = 0x7,
682 /* 0x8..0xf reserved */
683 #endif
684 IEEE80211_TRIGGER_TYPE_MASK = 0xf
685 };
686
687 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
688 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
689 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
690 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
691 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
692
693 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
694 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
695 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
696 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
697
698 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
699 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
700 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
701 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
702 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
703 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
704 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
705 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
706
707 struct ieee80211_twt_params {
708 int mantissa, min_twt_dur, twt;
709 uint16_t req_type;
710 };
711
712 struct ieee80211_twt_setup {
713 int control;
714 struct ieee80211_twt_params *params;
715 };
716
717 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
718 enum ieee80211_twt_setup_cmd {
719 TWT_SETUP_CMD_REQUEST = 0,
720 TWT_SETUP_CMD_SUGGEST = 1,
721 /* DEMAND = 2, */
722 /* GROUPING = 3, */
723 TWT_SETUP_CMD_ACCEPT = 4,
724 /* ALTERNATE = 5 */
725 TWT_SETUP_CMD_DICTATE = 6,
726 TWT_SETUP_CMD_REJECT = 7,
727 };
728
729 struct ieee80211_bssid_index {
730 int bssid_index;
731 };
732
733 enum ieee80211_ap_reg_power {
734 IEEE80211_REG_UNSET_AP,
735 IEEE80211_REG_LPI_AP,
736 IEEE80211_REG_SP_AP,
737 IEEE80211_REG_VLP_AP,
738 };
739
740 /*
741 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
742 * if Maximum Transmit Power Interpretation subfield is 1 or 3
743 */
744 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
745
746 /*
747 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
748 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
749 * United States (2)
750 */
751 #define IEEE80211_TPE_MAX_IE_NUM 8
752
753 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
754 struct ieee80211_tx_pwr_env {
755 uint8_t tx_power_info;
756 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
757 };
758
759 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
760 /* These are field masks (3bit/3bit/2bit). */
761 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
762 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
763 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
764
765 /*
766 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
767 * encoding
768 */
769 enum ieee80211_tx_pwr_interpretation_subfield_enc {
770 IEEE80211_TPE_LOCAL_EIRP,
771 IEEE80211_TPE_LOCAL_EIRP_PSD,
772 IEEE80211_TPE_REG_CLIENT_EIRP,
773 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
774 };
775
776 enum ieee80211_tx_pwr_category_6ghz {
777 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
778 };
779
780 /* 802.11-2020, 9.4.2.27 BSS Load element */
781 struct ieee80211_bss_load_elem {
782 uint16_t sta_count;
783 uint8_t channel_util;
784 uint16_t avail_adm_capa;
785 };
786
787 struct ieee80211_p2p_noa_desc {
788 uint32_t count; /* uint8_t ? */
789 uint32_t duration;
790 uint32_t interval;
791 uint32_t start_time;
792 };
793
794 struct ieee80211_p2p_noa_attr {
795 uint8_t index;
796 uint8_t oppps_ctwindow;
797 struct ieee80211_p2p_noa_desc desc[4];
798 };
799
800
801 /* net80211: IEEE80211_IS_CTL() */
802 static __inline bool
ieee80211_is_ctl(__le16 fc)803 ieee80211_is_ctl(__le16 fc)
804 {
805 __le16 v;
806
807 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
808 v = htole16(IEEE80211_FC0_TYPE_CTL);
809
810 return (fc == v);
811 }
812
813 /* net80211: IEEE80211_IS_DATA() */
814 static __inline bool
ieee80211_is_data(__le16 fc)815 ieee80211_is_data(__le16 fc)
816 {
817 __le16 v;
818
819 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
820 v = htole16(IEEE80211_FC0_TYPE_DATA);
821
822 return (fc == v);
823 }
824
825 /* net80211: IEEE80211_IS_QOSDATA() */
826 static __inline bool
ieee80211_is_data_qos(__le16 fc)827 ieee80211_is_data_qos(__le16 fc)
828 {
829 __le16 v;
830
831 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
832 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
833
834 return (fc == v);
835 }
836
837 /* net80211: IEEE80211_IS_MGMT() */
838 static __inline bool
ieee80211_is_mgmt(__le16 fc)839 ieee80211_is_mgmt(__le16 fc)
840 {
841 __le16 v;
842
843 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
844 v = htole16(IEEE80211_FC0_TYPE_MGT);
845
846 return (fc == v);
847 }
848
849
850 /* Derived from net80211::ieee80211_anyhdrsize. */
851 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)852 ieee80211_hdrlen(__le16 fc)
853 {
854 unsigned int size;
855
856 if (ieee80211_is_ctl(fc)) {
857 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
858 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
859 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
860 return sizeof(struct ieee80211_frame_ack);
861 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
862 return sizeof(struct ieee80211_frame_bar);
863 }
864 return (sizeof(struct ieee80211_frame_min));
865 }
866
867 size = sizeof(struct ieee80211_frame);
868 if (ieee80211_is_data(fc)) {
869 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
870 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
871 size += IEEE80211_ADDR_LEN;
872 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
873 IEEE80211_FC0_TYPE_MASK)) ==
874 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
875 IEEE80211_FC0_TYPE_DATA))
876 size += sizeof(uint16_t);
877 }
878
879 if (ieee80211_is_mgmt(fc)) {
880 #ifdef __notyet__
881 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
882 __func__, fc, size);
883 #endif
884 ;
885 }
886
887 return (size);
888 }
889
890 static inline bool
ieee80211_is_trigger(__le16 fc)891 ieee80211_is_trigger(__le16 fc)
892 {
893 __le16 v;
894
895 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
896 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
897
898 return (fc == v);
899 }
900
901 static __inline bool
ieee80211_is_action(__le16 fc)902 ieee80211_is_action(__le16 fc)
903 {
904 __le16 v;
905
906 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
907 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
908
909 return (fc == v);
910 }
911
912 static __inline bool
ieee80211_is_probe_resp(__le16 fc)913 ieee80211_is_probe_resp(__le16 fc)
914 {
915 __le16 v;
916
917 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
918 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
919
920 return (fc == v);
921 }
922
923 static __inline bool
ieee80211_is_auth(__le16 fc)924 ieee80211_is_auth(__le16 fc)
925 {
926 __le16 v;
927
928 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
929 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
930
931 return (fc == v);
932 }
933
934 static __inline bool
ieee80211_is_assoc_req(__le16 fc)935 ieee80211_is_assoc_req(__le16 fc)
936 {
937 __le16 v;
938
939 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
940 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
941
942 return (fc == v);
943 }
944
945 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)946 ieee80211_is_assoc_resp(__le16 fc)
947 {
948 __le16 v;
949
950 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
951 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
952
953 return (fc == v);
954 }
955
956 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)957 ieee80211_is_reassoc_req(__le16 fc)
958 {
959 __le16 v;
960
961 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
962 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
963
964 return (fc == v);
965 }
966
967 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)968 ieee80211_is_reassoc_resp(__le16 fc)
969 {
970 __le16 v;
971
972 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
973 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
974
975 return (fc == v);
976 }
977
978 static __inline bool
ieee80211_is_disassoc(__le16 fc)979 ieee80211_is_disassoc(__le16 fc)
980 {
981 __le16 v;
982
983 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
984 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
985
986 return (fc == v);
987 }
988
989 static __inline bool
ieee80211_is_data_present(__le16 fc)990 ieee80211_is_data_present(__le16 fc)
991 {
992 __le16 v;
993
994 /* If it is a data frame and NODATA is not present. */
995 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
996 v = htole16(IEEE80211_FC0_TYPE_DATA);
997
998 return (fc == v);
999 }
1000
1001 static __inline bool
ieee80211_is_deauth(__le16 fc)1002 ieee80211_is_deauth(__le16 fc)
1003 {
1004 __le16 v;
1005
1006 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1007 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
1008
1009 return (fc == v);
1010 }
1011
1012 static __inline bool
ieee80211_is_beacon(__le16 fc)1013 ieee80211_is_beacon(__le16 fc)
1014 {
1015 __le16 v;
1016
1017 /*
1018 * For as much as I get it this comes in LE and unlike FreeBSD
1019 * where we get the entire frame header and u8[], here we get the
1020 * 9.2.4.1 Frame Control field only. Mask and compare.
1021 */
1022 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1023 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
1024
1025 return (fc == v);
1026 }
1027
1028
1029 static __inline bool
ieee80211_is_probe_req(__le16 fc)1030 ieee80211_is_probe_req(__le16 fc)
1031 {
1032 __le16 v;
1033
1034 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1035 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1036
1037 return (fc == v);
1038 }
1039
1040 static __inline bool
ieee80211_has_protected(__le16 fc)1041 ieee80211_has_protected(__le16 fc)
1042 {
1043
1044 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1045 }
1046
1047 static __inline bool
ieee80211_is_back_req(__le16 fc)1048 ieee80211_is_back_req(__le16 fc)
1049 {
1050 __le16 v;
1051
1052 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1053 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
1054
1055 return (fc == v);
1056 }
1057
1058 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1059 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1060 {
1061 struct ieee80211_mgmt *mgmt;
1062 __le16 fc;
1063
1064 mgmt = (struct ieee80211_mgmt *)skb->data;
1065 fc = mgmt->frame_control;
1066
1067 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1068 /* XXX we do not care about IBSS yet. */
1069
1070 if (!ieee80211_is_mgmt(fc))
1071 return (false);
1072 if (ieee80211_is_action(fc)) /* XXX FTM? */
1073 return (true); /* XXX false? */
1074 if (ieee80211_is_disassoc(fc))
1075 return (true);
1076 if (ieee80211_is_deauth(fc))
1077 return (true);
1078
1079 TODO();
1080
1081 return (false);
1082 }
1083
1084 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1085 ieee80211_is_nullfunc(__le16 fc)
1086 {
1087 __le16 v;
1088
1089 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1090 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1091
1092 return (fc == v);
1093 }
1094
1095 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1096 ieee80211_is_qos_nullfunc(__le16 fc)
1097 {
1098 __le16 v;
1099
1100 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1101 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1102
1103 return (fc == v);
1104 }
1105
1106 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1107 ieee80211_is_any_nullfunc(__le16 fc)
1108 {
1109
1110 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1111 }
1112
1113 static inline bool
ieee80211_is_pspoll(__le16 fc)1114 ieee80211_is_pspoll(__le16 fc)
1115 {
1116 __le16 v;
1117
1118 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1119 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1120
1121 return (fc == v);
1122 }
1123
1124 static __inline bool
ieee80211_has_a4(__le16 fc)1125 ieee80211_has_a4(__le16 fc)
1126 {
1127 __le16 v;
1128
1129 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1130 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1131
1132 return (fc == v);
1133 }
1134
1135 static __inline bool
ieee80211_has_order(__le16 fc)1136 ieee80211_has_order(__le16 fc)
1137 {
1138
1139 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1140 }
1141
1142 static __inline bool
ieee80211_has_retry(__le16 fc)1143 ieee80211_has_retry(__le16 fc)
1144 {
1145
1146 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1147 }
1148
1149
1150 static __inline bool
ieee80211_has_fromds(__le16 fc)1151 ieee80211_has_fromds(__le16 fc)
1152 {
1153
1154 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1155 }
1156
1157 static __inline bool
ieee80211_has_tods(__le16 fc)1158 ieee80211_has_tods(__le16 fc)
1159 {
1160
1161 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1162 }
1163
1164 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1165 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1166 {
1167
1168 if (ieee80211_has_a4(hdr->frame_control))
1169 return (hdr->addr4);
1170 if (ieee80211_has_fromds(hdr->frame_control))
1171 return (hdr->addr3);
1172 return (hdr->addr2);
1173 }
1174
1175 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1176 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1177 {
1178
1179 if (ieee80211_has_tods(hdr->frame_control))
1180 return (hdr->addr3);
1181 return (hdr->addr1);
1182 }
1183
1184 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1185 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1186 {
1187 TODO();
1188 return (false);
1189 }
1190
1191 static __inline bool
ieee80211_is_first_frag(__le16 fc)1192 ieee80211_is_first_frag(__le16 fc)
1193 {
1194 TODO();
1195 return (false);
1196 }
1197
1198 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1199 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1200 {
1201 TODO();
1202 return (false);
1203 }
1204
1205 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1206 ieee80211_is_ftm(struct sk_buff *skb)
1207 {
1208 TODO();
1209 return (false);
1210 }
1211
1212 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1213 ieee80211_is_timing_measurement(struct sk_buff *skb)
1214 {
1215 TODO();
1216 return (false);
1217 }
1218
1219 static __inline bool
ieee80211_has_pm(__le16 fc)1220 ieee80211_has_pm(__le16 fc)
1221 {
1222 TODO();
1223 return (false);
1224 }
1225
1226 static __inline bool
ieee80211_has_morefrags(__le16 fc)1227 ieee80211_has_morefrags(__le16 fc)
1228 {
1229
1230 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1231 return (fc != 0);
1232 }
1233
1234 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1235 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1236 {
1237 if (ieee80211_has_a4(hdr->frame_control))
1238 return (u8 *)hdr + 30;
1239 else
1240 return (u8 *)hdr + 24;
1241 }
1242
1243 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1244