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 #define IEEE80211_RATE_SHORT_PREAMBLE BIT(0)
104
105 enum ieee80211_rate_control_changed_flags {
106 IEEE80211_RC_BW_CHANGED = BIT(0),
107 IEEE80211_RC_NSS_CHANGED = BIT(1),
108 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
109 IEEE80211_RC_SMPS_CHANGED = BIT(3),
110 };
111
112 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK
113 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK
114
115 #define IEEE80211_TKIP_ICV_LEN 4
116 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */
117
118 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* assigned to tx_highest */
119
120 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */
121
122 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */
123 #define IEEE80211_WEP_ICV_LEN 4
124
125 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */
126 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */
127 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */
128 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */
129
130 enum wlan_ht_cap_sm_ps {
131 WLAN_HT_CAP_SM_PS_STATIC = 0,
132 WLAN_HT_CAP_SM_PS_DYNAMIC,
133 WLAN_HT_CAP_SM_PS_INVALID,
134 WLAN_HT_CAP_SM_PS_DISABLED,
135 };
136
137 #define WLAN_MAX_KEY_LEN 32
138 #define WLAN_PMKID_LEN 16
139 #define WLAN_PMK_LEN_SUITE_B_192 48
140
141 enum ieee80211_key_len {
142 WLAN_KEY_LEN_WEP40 = 5,
143 WLAN_KEY_LEN_WEP104 = 13,
144 WLAN_KEY_LEN_TKIP = 32,
145 WLAN_KEY_LEN_CCMP = 16,
146 WLAN_KEY_LEN_GCMP = 16,
147 WLAN_KEY_LEN_AES_CMAC = 16,
148 WLAN_KEY_LEN_GCMP_256 = 32,
149 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
150 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
151 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
152 };
153
154 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */
155 enum ieee80211_min_mpdu_start_spacing {
156 IEEE80211_HT_MPDU_DENSITY_NONE = 0,
157 #if 0
158 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */
159 #endif
160 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */
161 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */
162 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */
163 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */
164 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */
165 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */
166 };
167
168 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */
169 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */
170
171 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK
172 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK
173 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8)
174 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8)
175 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8)
176 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8)
177 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8)
178 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8)
179
180 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT
181 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL
182 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA
183
184 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ
185 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ
186 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ
187 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC
188 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH
189 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH
190 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS
191 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS
192 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION
193 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA
194 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA
195 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL
196 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */
197
198 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */
199
200 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */
201
202
203 /* Figure 9-27, BAR Control field */
204 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
205 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
206
207 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */
208 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */
209 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */
210 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */
211 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */
212
213 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */
214 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */
215 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */
216 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */
217 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */
218 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */
219
220
221 /* 9.6.13.1, Table 9-342 TDLS Action field values. */
222 enum ieee80211_tdls_action_code {
223 WLAN_TDLS_SETUP_REQUEST = 0,
224 WLAN_TDLS_SETUP_RESPONSE = 1,
225 WLAN_TDLS_SETUP_CONFIRM = 2,
226 WLAN_TDLS_TEARDOWN = 3,
227 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
228 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
229 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
230 WLAN_TDLS_PEER_PSM_REQUEST = 7,
231 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
232 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
233 WLAN_TDLS_DISCOVERY_REQUEST = 10,
234 /* 11-255 reserved */
235 };
236
237 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */
238 /* This is split up into octets CAPA1 = octet 1, ... */
239 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8)
240 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8)
241 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8)
242 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8)
243 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8)
244 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8)
245 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8)
246 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8)
247 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8)
248
249 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */
250
251
252 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */
253 /* Would be so much easier if we'd define constants to the same. */
254 enum ieee80211_ac_numbers {
255 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */
256 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */
257 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */
258 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */
259 };
260
261 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */
262
263 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1
264 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2
265 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4
266 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8
267 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf
268
269
270 /* Define the LinuxKPI names directly to the net80211 ones. */
271 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC
272 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40
273 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS
274 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
275 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD
276 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20
277 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40
278 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC
279 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC
280 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S
281 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU
282 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40
283 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT
284
285 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001
286 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002
287 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
288 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c
289 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
290 #define IEEE80211_HT_MCS_MASK_LEN 10
291
292 #define IEEE80211_MLD_MAX_NUM_LINKS 15
293 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
294 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
295
296 struct ieee80211_mcs_info {
297 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN];
298 uint16_t rx_highest;
299 uint8_t tx_params;
300 uint8_t __reserved[3];
301 };
302
303 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
304 struct ieee80211_ht_cap {
305 uint16_t cap_info;
306 uint8_t ampdu_params_info;
307 struct ieee80211_mcs_info mcs;
308 uint16_t extended_ht_cap_info;
309 uint32_t tx_BF_cap_info;
310 uint8_t antenna_selection_info;
311 };
312
313 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
314 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
315 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
316 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
317
318 enum ieee80211_ht_max_ampdu_len {
319 IEEE80211_HT_MAX_AMPDU_64K
320 };
321
322 enum ieee80211_ampdu_mlme_action {
323 IEEE80211_AMPDU_RX_START,
324 IEEE80211_AMPDU_RX_STOP,
325 IEEE80211_AMPDU_TX_OPERATIONAL,
326 IEEE80211_AMPDU_TX_START,
327 IEEE80211_AMPDU_TX_STOP_CONT,
328 IEEE80211_AMPDU_TX_STOP_FLUSH,
329 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
330 };
331
332 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
333 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
334
335 enum ieee80211_chanctx_switch_mode {
336 CHANCTX_SWMODE_REASSIGN_VIF,
337 CHANCTX_SWMODE_SWAP_CONTEXTS,
338 };
339
340 enum ieee80211_chanctx_change_flags {
341 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
342 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
343 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
344 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
345 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
346 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5),
347 };
348
349 enum ieee80211_frame_release_type {
350 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
351 IEEE80211_FRAME_RELEASE_UAPSD = 2,
352 };
353
354 enum ieee80211_p2p_attr_ids {
355 IEEE80211_P2P_ATTR_DEVICE_ID,
356 IEEE80211_P2P_ATTR_DEVICE_INFO,
357 IEEE80211_P2P_ATTR_GROUP_ID,
358 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
359 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
360 };
361
362 enum ieee80211_reconfig_type {
363 IEEE80211_RECONFIG_TYPE_RESTART,
364 IEEE80211_RECONFIG_TYPE_SUSPEND,
365 };
366
367 enum ieee80211_roc_type {
368 IEEE80211_ROC_TYPE_MGMT_TX,
369 IEEE80211_ROC_TYPE_NORMAL,
370 };
371
372 enum ieee80211_smps_mode {
373 IEEE80211_SMPS_OFF,
374 IEEE80211_SMPS_STATIC,
375 IEEE80211_SMPS_DYNAMIC,
376 IEEE80211_SMPS_AUTOMATIC,
377 IEEE80211_SMPS_NUM_MODES,
378 };
379
380 /* net80211::IEEE80211_S_* different but represents the state machine. */
381 /* Note: order here is important! */
382 enum ieee80211_sta_state {
383 IEEE80211_STA_NOTEXIST = 0,
384 IEEE80211_STA_NONE = 1,
385 IEEE80211_STA_AUTH = 2,
386 IEEE80211_STA_ASSOC = 3,
387 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
388 };
389
390 enum ieee80211_sta_rx_bw {
391 IEEE80211_STA_RX_BW_20,
392 IEEE80211_STA_RX_BW_40,
393 IEEE80211_STA_RX_BW_80,
394 IEEE80211_STA_RX_BW_160,
395 IEEE80211_STA_RX_BW_320,
396 };
397
398 enum ieee80211_tx_info_flags {
399 /* XXX TODO .. right shift numbers - not sure where that came from? */
400 IEEE80211_TX_CTL_AMPDU = BIT(0),
401 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
402 IEEE80211_TX_CTL_NO_ACK = BIT(2),
403 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
404 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
405 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
406 IEEE80211_TX_STATUS_EOSP = BIT(6),
407 IEEE80211_TX_STAT_ACK = BIT(7),
408 IEEE80211_TX_STAT_AMPDU = BIT(8),
409 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
410 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
411 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
412 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
413 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
414 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
415 IEEE80211_TX_CTL_INJECTED = BIT(15),
416 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
417 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
418 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
419 IEEE80211_TX_CTL_LDPC = BIT(19),
420 IEEE80211_TX_CTL_STBC = BIT(20),
421 };
422
423 enum ieee80211_tx_status_flags {
424 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
425 };
426
427 enum ieee80211_tx_control_flags {
428 /* XXX TODO .. right shift numbers */
429 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
430 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
431 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
432 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */
433 };
434
435 enum ieee80211_tx_rate_flags {
436 /* XXX TODO .. right shift numbers */
437 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
438 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
439 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
440 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
441 IEEE80211_TX_RC_MCS = BIT(4),
442 IEEE80211_TX_RC_SHORT_GI = BIT(5),
443 IEEE80211_TX_RC_VHT_MCS = BIT(6),
444 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
445 };
446
447 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128
448
449 #define IEEE80211_HT_CTL_LEN 4
450
451 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */
452 __le16 frame_control;
453 __le16 duration_id;
454 uint8_t addr1[ETH_ALEN];
455 uint8_t addr2[ETH_ALEN];
456 uint8_t addr3[ETH_ALEN];
457 __le16 seq_ctrl;
458 uint8_t addr4[ETH_ALEN];
459 };
460
461 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */
462 __le16 frame_control;
463 __le16 duration_id;
464 uint8_t addr1[ETH_ALEN];
465 uint8_t addr2[ETH_ALEN];
466 uint8_t addr3[ETH_ALEN];
467 __le16 seq_ctrl;
468 };
469
470 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */
471 __le16 frame_control;
472 __le16 duration_id;
473 uint8_t addr1[ETH_ALEN];
474 uint8_t addr2[ETH_ALEN];
475 uint8_t addr3[ETH_ALEN];
476 __le16 seq_ctrl;
477 __le16 qos_ctrl;
478 };
479
480 struct ieee80211_vendor_ie {
481 };
482
483 /* 802.11-2020, Table 9-359-Block Ack Action field values */
484 enum ieee80211_back {
485 WLAN_ACTION_ADDBA_REQ = 0,
486 };
487
488 enum ieee80211_sa_query {
489 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
490 };
491
492 /* 802.11-2020, Table 9-51-Category values */
493 enum ieee80211_category {
494 WLAN_CATEGORY_BACK = 3,
495 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */
496 };
497
498 /* 80211-2020 9.3.3.2 Format of Management frames */
499 struct ieee80211_mgmt {
500 __le16 frame_control;
501 __le16 duration_id;
502 uint8_t da[ETH_ALEN];
503 uint8_t sa[ETH_ALEN];
504 uint8_t bssid[ETH_ALEN];
505 __le16 seq_ctrl;
506 union {
507 /* 9.3.3.3 Beacon frame format */
508 struct {
509 uint64_t timestamp;
510 uint16_t beacon_int;
511 uint16_t capab_info;
512 uint8_t variable[0];
513 } beacon;
514 /* 9.3.3.10 Probe Request frame format */
515 struct {
516 uint8_t variable[0];
517 } probe_req;
518 /* 9.3.3.11 Probe Response frame format */
519 struct {
520 uint64_t timestamp;
521 uint16_t beacon_int;
522 uint16_t capab_info;
523 uint8_t variable[0];
524 } probe_resp;
525 /* 9.3.3.14 Action frame format */
526 struct {
527 /* 9.4.1.11 Action field */
528 uint8_t category;
529 /* 9.6.8 Public Action details */
530 union {
531 /* 9.6.2.5 TPC Report frame format */
532 struct {
533 uint8_t spec_mgmt;
534 uint8_t dialog_token;
535 /* uint32_t tpc_rep_elem:: */
536 uint8_t tpc_elem_id;
537 uint8_t tpc_elem_length;
538 uint8_t tpc_elem_tx_power;
539 uint8_t tpc_elem_link_margin;
540 } tpc_report;
541 /* 9.6.8.33 Fine Timing Measurement frame format */
542 struct {
543 uint8_t dialog_token;
544 uint8_t follow_up;
545 uint8_t tod[6];
546 uint8_t toa[6];
547 uint16_t tod_error;
548 uint16_t toa_error;
549 uint8_t variable[0];
550 } ftm;
551 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
552 struct {
553 uint8_t action_code;
554 uint8_t dialog_token;
555 uint16_t capab;
556 uint16_t timeout;
557 uint16_t start_seq_num;
558 /* Optional follows... */
559 uint8_t variable[0];
560 } addba_req;
561 /* XXX */
562 struct {
563 uint8_t dialog_token;
564 } wnm_timing_msr;
565 } u;
566 } action;
567 DECLARE_FLEX_ARRAY(uint8_t, body);
568 } u;
569 };
570
571 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
572 __le16 frame_control;
573 __le16 duration;
574 uint8_t ra[ETH_ALEN];
575 } __packed;
576
577 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
578 __le16 frame_control;
579 __le16 duration;
580 uint8_t ra[ETH_ALEN];
581 uint8_t ta[ETH_ALEN];
582 } __packed;
583
584 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
585 #define DBI_TO_MBI(_g) ((_g) * 100)
586 #define MBI_TO_DBI(_x) ((_x) / 100)
587 #define DBM_TO_MBM(_g) ((_g) * 100)
588 #define MBM_TO_DBM(_x) ((_x) / 100)
589
590 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
591 IEEE80211_SEQ_SEQ_SHIFT)
592 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
593 IEEE80211_SEQ_SEQ_MASK)
594
595 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
596 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
597 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
598
599 /* 9.4.2.21.1, Table 9-82. */
600 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
601 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
602
603 /* 9.4.2.1, Table 9-77. Element IDs. */
604 enum ieee80211_eid {
605 WLAN_EID_SSID = 0,
606 WLAN_EID_SUPP_RATES = 1,
607 WLAN_EID_DS_PARAMS = 3,
608 WLAN_EID_TIM = 5,
609 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
610 WLAN_EID_REQUEST = 10,
611 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
612 WLAN_EID_CHANNEL_SWITCH = 37,
613 WLAN_EID_MEASURE_REPORT = 39,
614 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
615 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
616 WLAN_EID_EXT_SUPP_RATES = 50,
617 WLAN_EID_EXT_NON_INHERITANCE = 56,
618 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
619 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
620 WLAN_EID_MULTI_BSSID_IDX = 85,
621 WLAN_EID_EXT_CAPABILITY = 127,
622 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
623 WLAN_EID_S1G_TWT = 216,
624 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
625 };
626
627 enum ieee80211_eid_ext {
628 WLAN_EID_EXT_HE_CAPABILITY = 35,
629 };
630
631 #define for_each_element(_elem, _data, _len) \
632 for (_elem = (const struct element *)(_data); \
633 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
634 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
635 _elem = (const struct element *)(_elem->data + _elem->datalen))
636
637 #define for_each_element_id(_elem, _eid, _data, _len) \
638 for_each_element(_elem, _data, _len) \
639 if (_elem->id == (_eid))
640
641 /* 9.4.1.7, Table 9-45. Reason codes. */
642 enum ieee80211_reason_code {
643 /* reserved = 0, */
644 WLAN_REASON_UNSPECIFIED = 1,
645 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
646 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
647 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
648 };
649
650 /* 9.4.1.9, Table 9-46. Status codes. */
651 enum ieee80211_status_code {
652 WLAN_STATUS_SUCCESS = 0,
653 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
654 };
655
656 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
657 struct ieee80211_trigger {
658 __le16 frame_control;
659 __le16 duration_id;
660 uint8_t ra[ETH_ALEN];
661 uint8_t ta[ETH_ALEN];
662 __le64 common_info; /* 8+ really */
663 uint8_t variable[];
664 };
665
666 /* Table 9-29c-Trigger Type subfield encoding */
667 enum {
668 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
669 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
670 #if 0
671 /* Not seen yet. */
672 BFRP = 0x1,
673 MU-RTS = 0x3,
674 BSRP = 0x4,
675 GCR MU-BAR = 0x5,
676 BQRP = 0x6,
677 NFRP = 0x7,
678 /* 0x8..0xf reserved */
679 #endif
680 IEEE80211_TRIGGER_TYPE_MASK = 0xf
681 };
682
683 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
684 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
685 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
686 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
687 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
688
689 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
690 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
691 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
692 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
693
694 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
695 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
696 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
697 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
698 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
699 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
700 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
701 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
702
703 struct ieee80211_twt_params {
704 int mantissa, min_twt_dur, twt;
705 uint16_t req_type;
706 };
707
708 struct ieee80211_twt_setup {
709 int control;
710 struct ieee80211_twt_params *params;
711 };
712
713 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
714 enum ieee80211_twt_setup_cmd {
715 TWT_SETUP_CMD_REQUEST = 0,
716 TWT_SETUP_CMD_SUGGEST = 1,
717 /* DEMAND = 2, */
718 /* GROUPING = 3, */
719 TWT_SETUP_CMD_ACCEPT = 4,
720 /* ALTERNATE = 5 */
721 TWT_SETUP_CMD_DICTATE = 6,
722 TWT_SETUP_CMD_REJECT = 7,
723 };
724
725 struct ieee80211_bssid_index {
726 int bssid_index;
727 };
728
729 enum ieee80211_ap_reg_power {
730 IEEE80211_REG_UNSET_AP,
731 IEEE80211_REG_LPI_AP,
732 IEEE80211_REG_SP_AP,
733 IEEE80211_REG_VLP_AP,
734 };
735
736 /*
737 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
738 * if Maximum Transmit Power Interpretation subfield is 1 or 3
739 */
740 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
741
742 /*
743 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
744 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
745 * United States (2)
746 */
747 #define IEEE80211_TPE_MAX_IE_NUM 8
748
749 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
750 struct ieee80211_tx_pwr_env {
751 uint8_t tx_power_info;
752 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
753 };
754
755 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
756 /* These are field masks (3bit/3bit/2bit). */
757 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
758 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
759 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
760
761 /*
762 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
763 * encoding
764 */
765 enum ieee80211_tx_pwr_interpretation_subfield_enc {
766 IEEE80211_TPE_LOCAL_EIRP,
767 IEEE80211_TPE_LOCAL_EIRP_PSD,
768 IEEE80211_TPE_REG_CLIENT_EIRP,
769 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
770 };
771
772 enum ieee80211_tx_pwr_category_6ghz {
773 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
774 };
775
776 /* 802.11-2020, 9.4.2.27 BSS Load element */
777 struct ieee80211_bss_load_elem {
778 uint16_t sta_count;
779 uint8_t channel_util;
780 uint16_t avail_adm_capa;
781 };
782
783 /* net80211: IEEE80211_IS_CTL() */
784 static __inline bool
ieee80211_is_ctl(__le16 fc)785 ieee80211_is_ctl(__le16 fc)
786 {
787 __le16 v;
788
789 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
790 v = htole16(IEEE80211_FC0_TYPE_CTL);
791
792 return (fc == v);
793 }
794
795 /* net80211: IEEE80211_IS_DATA() */
796 static __inline bool
ieee80211_is_data(__le16 fc)797 ieee80211_is_data(__le16 fc)
798 {
799 __le16 v;
800
801 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
802 v = htole16(IEEE80211_FC0_TYPE_DATA);
803
804 return (fc == v);
805 }
806
807 /* net80211: IEEE80211_IS_QOSDATA() */
808 static __inline bool
ieee80211_is_data_qos(__le16 fc)809 ieee80211_is_data_qos(__le16 fc)
810 {
811 __le16 v;
812
813 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
814 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
815
816 return (fc == v);
817 }
818
819 /* net80211: IEEE80211_IS_MGMT() */
820 static __inline bool
ieee80211_is_mgmt(__le16 fc)821 ieee80211_is_mgmt(__le16 fc)
822 {
823 __le16 v;
824
825 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
826 v = htole16(IEEE80211_FC0_TYPE_MGT);
827
828 return (fc == v);
829 }
830
831
832 /* Derived from net80211::ieee80211_anyhdrsize. */
833 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)834 ieee80211_hdrlen(__le16 fc)
835 {
836 unsigned int size;
837
838 if (ieee80211_is_ctl(fc)) {
839 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
840 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
841 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
842 return sizeof(struct ieee80211_frame_ack);
843 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
844 return sizeof(struct ieee80211_frame_bar);
845 }
846 return (sizeof(struct ieee80211_frame_min));
847 }
848
849 size = sizeof(struct ieee80211_frame);
850 if (ieee80211_is_data(fc)) {
851 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
852 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
853 size += IEEE80211_ADDR_LEN;
854 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
855 IEEE80211_FC0_TYPE_MASK)) ==
856 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
857 IEEE80211_FC0_TYPE_DATA))
858 size += sizeof(uint16_t);
859 }
860
861 if (ieee80211_is_mgmt(fc)) {
862 #ifdef __notyet__
863 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
864 __func__, fc, size);
865 #endif
866 ;
867 }
868
869 return (size);
870 }
871
872 static inline bool
ieee80211_is_trigger(__le16 fc)873 ieee80211_is_trigger(__le16 fc)
874 {
875 __le16 v;
876
877 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
878 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
879
880 return (fc == v);
881 }
882
883 static __inline bool
ieee80211_is_action(__le16 fc)884 ieee80211_is_action(__le16 fc)
885 {
886 __le16 v;
887
888 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
889 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
890
891 return (fc == v);
892 }
893
894 static __inline bool
ieee80211_is_probe_resp(__le16 fc)895 ieee80211_is_probe_resp(__le16 fc)
896 {
897 __le16 v;
898
899 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
900 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
901
902 return (fc == v);
903 }
904
905 static __inline bool
ieee80211_is_auth(__le16 fc)906 ieee80211_is_auth(__le16 fc)
907 {
908 __le16 v;
909
910 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
911 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
912
913 return (fc == v);
914 }
915
916 static __inline bool
ieee80211_is_assoc_req(__le16 fc)917 ieee80211_is_assoc_req(__le16 fc)
918 {
919 __le16 v;
920
921 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
922 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
923
924 return (fc == v);
925 }
926
927 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)928 ieee80211_is_assoc_resp(__le16 fc)
929 {
930 __le16 v;
931
932 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
933 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
934
935 return (fc == v);
936 }
937
938 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)939 ieee80211_is_reassoc_req(__le16 fc)
940 {
941 __le16 v;
942
943 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
944 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
945
946 return (fc == v);
947 }
948
949 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)950 ieee80211_is_reassoc_resp(__le16 fc)
951 {
952 __le16 v;
953
954 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
955 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
956
957 return (fc == v);
958 }
959
960 static __inline bool
ieee80211_is_disassoc(__le16 fc)961 ieee80211_is_disassoc(__le16 fc)
962 {
963 __le16 v;
964
965 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
966 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
967
968 return (fc == v);
969 }
970
971 static __inline bool
ieee80211_is_data_present(__le16 fc)972 ieee80211_is_data_present(__le16 fc)
973 {
974 __le16 v;
975
976 /* If it is a data frame and NODATA is not present. */
977 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
978 v = htole16(IEEE80211_FC0_TYPE_DATA);
979
980 return (fc == v);
981 }
982
983 static __inline bool
ieee80211_is_deauth(__le16 fc)984 ieee80211_is_deauth(__le16 fc)
985 {
986 __le16 v;
987
988 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
989 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
990
991 return (fc == v);
992 }
993
994 static __inline bool
ieee80211_is_beacon(__le16 fc)995 ieee80211_is_beacon(__le16 fc)
996 {
997 __le16 v;
998
999 /*
1000 * For as much as I get it this comes in LE and unlike FreeBSD
1001 * where we get the entire frame header and u8[], here we get the
1002 * 9.2.4.1 Frame Control field only. Mask and compare.
1003 */
1004 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1005 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
1006
1007 return (fc == v);
1008 }
1009
1010
1011 static __inline bool
ieee80211_is_probe_req(__le16 fc)1012 ieee80211_is_probe_req(__le16 fc)
1013 {
1014 __le16 v;
1015
1016 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1017 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1018
1019 return (fc == v);
1020 }
1021
1022 static __inline bool
ieee80211_has_protected(__le16 fc)1023 ieee80211_has_protected(__le16 fc)
1024 {
1025
1026 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1027 }
1028
1029 static __inline bool
ieee80211_is_back_req(__le16 fc)1030 ieee80211_is_back_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_BAR | IEEE80211_FC0_TYPE_CTL);
1036
1037 return (fc == v);
1038 }
1039
1040 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1041 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1042 {
1043 struct ieee80211_mgmt *mgmt;
1044 __le16 fc;
1045
1046 mgmt = (struct ieee80211_mgmt *)skb->data;
1047 fc = mgmt->frame_control;
1048
1049 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1050 /* XXX we do not care about IBSS yet. */
1051
1052 if (!ieee80211_is_mgmt(fc))
1053 return (false);
1054 if (ieee80211_is_action(fc)) /* XXX FTM? */
1055 return (true); /* XXX false? */
1056 if (ieee80211_is_disassoc(fc))
1057 return (true);
1058 if (ieee80211_is_deauth(fc))
1059 return (true);
1060
1061 TODO();
1062
1063 return (false);
1064 }
1065
1066 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1067 ieee80211_is_nullfunc(__le16 fc)
1068 {
1069 __le16 v;
1070
1071 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1072 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1073
1074 return (fc == v);
1075 }
1076
1077 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1078 ieee80211_is_qos_nullfunc(__le16 fc)
1079 {
1080 __le16 v;
1081
1082 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1083 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1084
1085 return (fc == v);
1086 }
1087
1088 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1089 ieee80211_is_any_nullfunc(__le16 fc)
1090 {
1091
1092 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1093 }
1094
1095 static inline bool
ieee80211_is_pspoll(__le16 fc)1096 ieee80211_is_pspoll(__le16 fc)
1097 {
1098 __le16 v;
1099
1100 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1101 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1102
1103 return (fc == v);
1104 }
1105
1106 static __inline bool
ieee80211_has_a4(__le16 fc)1107 ieee80211_has_a4(__le16 fc)
1108 {
1109 __le16 v;
1110
1111 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1112 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1113
1114 return (fc == v);
1115 }
1116
1117 static __inline bool
ieee80211_has_order(__le16 fc)1118 ieee80211_has_order(__le16 fc)
1119 {
1120
1121 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1122 }
1123
1124 static __inline bool
ieee80211_has_retry(__le16 fc)1125 ieee80211_has_retry(__le16 fc)
1126 {
1127
1128 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1129 }
1130
1131
1132 static __inline bool
ieee80211_has_fromds(__le16 fc)1133 ieee80211_has_fromds(__le16 fc)
1134 {
1135
1136 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1137 }
1138
1139 static __inline bool
ieee80211_has_tods(__le16 fc)1140 ieee80211_has_tods(__le16 fc)
1141 {
1142
1143 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1144 }
1145
1146 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1147 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1148 {
1149
1150 if (ieee80211_has_a4(hdr->frame_control))
1151 return (hdr->addr4);
1152 if (ieee80211_has_fromds(hdr->frame_control))
1153 return (hdr->addr3);
1154 return (hdr->addr2);
1155 }
1156
1157 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1158 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1159 {
1160
1161 if (ieee80211_has_tods(hdr->frame_control))
1162 return (hdr->addr3);
1163 return (hdr->addr1);
1164 }
1165
1166 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1167 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1168 {
1169 TODO();
1170 return (false);
1171 }
1172
1173 static __inline bool
ieee80211_is_first_frag(__le16 fc)1174 ieee80211_is_first_frag(__le16 fc)
1175 {
1176 TODO();
1177 return (false);
1178 }
1179
1180 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1181 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1182 {
1183 TODO();
1184 return (false);
1185 }
1186
1187 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1188 ieee80211_is_ftm(struct sk_buff *skb)
1189 {
1190 TODO();
1191 return (false);
1192 }
1193
1194 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1195 ieee80211_is_timing_measurement(struct sk_buff *skb)
1196 {
1197 TODO();
1198 return (false);
1199 }
1200
1201 static __inline bool
ieee80211_has_pm(__le16 fc)1202 ieee80211_has_pm(__le16 fc)
1203 {
1204 TODO();
1205 return (false);
1206 }
1207
1208 static __inline bool
ieee80211_has_morefrags(__le16 fc)1209 ieee80211_has_morefrags(__le16 fc)
1210 {
1211
1212 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1213 return (fc != 0);
1214 }
1215
1216 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1217 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1218 {
1219 if (ieee80211_has_a4(hdr->frame_control))
1220 return (u8 *)hdr + 30;
1221 else
1222 return (u8 *)hdr + 24;
1223 }
1224
1225
1226 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1227