1 /*-
2 * Copyright (c) 2020-2025 The FreeBSD Foundation
3 *
4 * This software was developed by Björn Zeeb under sponsorship from
5 * the FreeBSD Foundation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #ifndef _LINUXKPI_LINUX_IEEE80211_H
30 #define _LINUXKPI_LINUX_IEEE80211_H
31
32 #include <sys/types.h>
33 #include <net80211/ieee80211.h>
34
35 #include <asm/unaligned.h>
36 #include <linux/kernel.h>
37 #include <linux/bitops.h>
38 #include <linux/if_ether.h>
39
40 /* linux_80211.c */
41 extern int linuxkpi_debug_80211;
42 #ifndef D80211_TODO
43 #define D80211_TODO 0x1
44 #endif
45 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \
46 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__)
47
48
49 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */
50 struct ieee80211_mmie_16 {
51 uint8_t element_id;
52 uint8_t length;
53 uint16_t key_id;
54 uint8_t ipn[6];
55 uint8_t mic[16];
56 };
57
58 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */
59 #define IEEE80211_CCMP_PN_LEN 6
60 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */
61 #define IEEE80211_CCMP_256_HDR_LEN 8
62 #define IEEE80211_CCMP_256_MIC_LEN 16
63 #define IEEE80211_GCMP_HDR_LEN 8
64 #define IEEE80211_GCMP_MIC_LEN 16
65 #define IEEE80211_GCMP_PN_LEN 6
66 #define IEEE80211_GMAC_PN_LEN 6
67 #define IEEE80211_CMAC_PN_LEN 6
68
69 #define IEEE80211_MAX_PN_LEN 16
70
71 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1)
72
73 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX
74 #define IEEE80211_MAX_AMPDU_BUF_HE 256
75 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024
76
77 #define IEEE80211_MAX_FRAME_LEN 2352
78 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN)
79
80 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */
81 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
82 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935
83 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
84 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
85 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
86
87 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */
88
89 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */
90
91 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */
92 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f
93 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
94
95 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */
96 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
97 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID
98 #define IEEE80211_QOS_CTL_EOSP 0x0010
99 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
100 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
101 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
102 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
103
104 enum ieee80211_rate_flags {
105 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0),
106 };
107
108 enum ieee80211_rate_control_changed_flags {
109 IEEE80211_RC_BW_CHANGED = BIT(0),
110 IEEE80211_RC_NSS_CHANGED = BIT(1),
111 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
112 IEEE80211_RC_SMPS_CHANGED = BIT(3),
113 };
114
115 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK
116 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK
117
118 #define IEEE80211_TKIP_ICV_LEN 4
119 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */
120
121 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */
122 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */
123
124 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */
125
126 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */
127 #define IEEE80211_WEP_ICV_LEN 4
128
129 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */
130 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */
131 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */
132 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */
133
134 enum wlan_ht_cap_sm_ps {
135 WLAN_HT_CAP_SM_PS_STATIC = 0,
136 WLAN_HT_CAP_SM_PS_DYNAMIC,
137 WLAN_HT_CAP_SM_PS_INVALID,
138 WLAN_HT_CAP_SM_PS_DISABLED,
139 };
140
141 #define WLAN_MAX_KEY_LEN 32
142 #define WLAN_PMKID_LEN 16
143 #define WLAN_PMK_LEN_SUITE_B_192 48
144
145 enum ieee80211_key_len {
146 WLAN_KEY_LEN_WEP40 = 5,
147 WLAN_KEY_LEN_WEP104 = 13,
148 WLAN_KEY_LEN_TKIP = 32,
149 WLAN_KEY_LEN_CCMP = 16,
150 WLAN_KEY_LEN_CCMP_256 = 32,
151 WLAN_KEY_LEN_GCMP = 16,
152 WLAN_KEY_LEN_AES_CMAC = 16,
153 WLAN_KEY_LEN_GCMP_256 = 32,
154 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
155 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
156 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
157 };
158
159 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */
160 enum ieee80211_min_mpdu_start_spacing {
161 IEEE80211_HT_MPDU_DENSITY_NONE = 0,
162 #if 0
163 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */
164 #endif
165 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */
166 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */
167 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */
168 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */
169 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */
170 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */
171 };
172
173 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */
174 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */
175
176 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK
177 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK
178 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8)
179 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8)
180 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8)
181 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8)
182 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8)
183 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8)
184
185 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT
186 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL
187 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA
188
189 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ
190 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ
191 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ
192 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC
193 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH
194 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH
195 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS
196 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS
197 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION
198 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA
199 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA
200 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL
201 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */
202
203 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */
204
205 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */
206
207
208 /* Figure 9-27, BAR Control field */
209 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
210 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
211
212 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */
213 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */
214 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */
215 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */
216 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */
217
218 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */
219 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */
220 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */
221 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */
222 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */
223 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */
224
225
226 /* 9.6.13.1, Table 9-342 TDLS Action field values. */
227 enum ieee80211_tdls_action_code {
228 WLAN_TDLS_SETUP_REQUEST = 0,
229 WLAN_TDLS_SETUP_RESPONSE = 1,
230 WLAN_TDLS_SETUP_CONFIRM = 2,
231 WLAN_TDLS_TEARDOWN = 3,
232 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
233 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
234 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
235 WLAN_TDLS_PEER_PSM_REQUEST = 7,
236 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
237 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
238 WLAN_TDLS_DISCOVERY_REQUEST = 10,
239 /* 11-255 reserved */
240 };
241
242 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */
243 /* This is split up into octets CAPA1 = octet 1, ... */
244 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8)
245 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8)
246 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8)
247 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8)
248 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8)
249 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8)
250 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8)
251 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8)
252 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8)
253
254 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */
255
256
257 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */
258 /* Would be so much easier if we'd define constants to the same. */
259 enum ieee80211_ac_numbers {
260 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */
261 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */
262 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */
263 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */
264 };
265
266 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */
267
268 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1
269 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2
270 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4
271 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8
272 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf
273
274
275 /* Define the LinuxKPI names directly to the net80211 ones. */
276 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC
277 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40
278 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS
279 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
280 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD
281 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20
282 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40
283 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC
284 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC
285 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S
286 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU
287 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40
288 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT
289
290 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001
291 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002
292 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
293 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c
294 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
295 #define IEEE80211_HT_MCS_MASK_LEN 10
296
297 #define IEEE80211_MLD_MAX_NUM_LINKS 15
298 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
299 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
300
301 struct ieee80211_mcs_info {
302 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN];
303 uint16_t rx_highest;
304 uint8_t tx_params;
305 uint8_t __reserved[3];
306 };
307
308 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
309 struct ieee80211_ht_cap {
310 uint16_t cap_info;
311 uint8_t ampdu_params_info;
312 struct ieee80211_mcs_info mcs;
313 uint16_t extended_ht_cap_info;
314 uint32_t tx_BF_cap_info;
315 uint8_t antenna_selection_info;
316 };
317
318 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
319 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
320 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
321 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
322
323 enum ieee80211_ht_max_ampdu_len {
324 IEEE80211_HT_MAX_AMPDU_64K
325 };
326
327 enum ieee80211_ampdu_mlme_action {
328 IEEE80211_AMPDU_RX_START,
329 IEEE80211_AMPDU_RX_STOP,
330 IEEE80211_AMPDU_TX_OPERATIONAL,
331 IEEE80211_AMPDU_TX_START,
332 IEEE80211_AMPDU_TX_STOP_CONT,
333 IEEE80211_AMPDU_TX_STOP_FLUSH,
334 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
335 };
336
337 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
338 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
339
340 enum ieee80211_chanctx_switch_mode {
341 CHANCTX_SWMODE_REASSIGN_VIF,
342 CHANCTX_SWMODE_SWAP_CONTEXTS,
343 };
344
345 enum ieee80211_chanctx_change_flags {
346 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
347 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
348 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
349 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
350 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
351 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5),
352 };
353
354 enum ieee80211_frame_release_type {
355 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
356 IEEE80211_FRAME_RELEASE_UAPSD = 2,
357 };
358
359 enum ieee80211_p2p_attr_ids {
360 IEEE80211_P2P_ATTR_DEVICE_ID,
361 IEEE80211_P2P_ATTR_DEVICE_INFO,
362 IEEE80211_P2P_ATTR_GROUP_ID,
363 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
364 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
365 };
366
367 enum ieee80211_reconfig_type {
368 IEEE80211_RECONFIG_TYPE_RESTART,
369 IEEE80211_RECONFIG_TYPE_SUSPEND,
370 };
371
372 enum ieee80211_roc_type {
373 IEEE80211_ROC_TYPE_MGMT_TX,
374 IEEE80211_ROC_TYPE_NORMAL,
375 };
376
377 enum ieee80211_smps_mode {
378 IEEE80211_SMPS_OFF,
379 IEEE80211_SMPS_STATIC,
380 IEEE80211_SMPS_DYNAMIC,
381 IEEE80211_SMPS_AUTOMATIC,
382 IEEE80211_SMPS_NUM_MODES,
383 };
384
385 /* net80211::IEEE80211_S_* different but represents the state machine. */
386 /* Note: order here is important! */
387 enum ieee80211_sta_state {
388 IEEE80211_STA_NOTEXIST = 0,
389 IEEE80211_STA_NONE = 1,
390 IEEE80211_STA_AUTH = 2,
391 IEEE80211_STA_ASSOC = 3,
392 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
393 };
394
395 enum ieee80211_tx_info_flags {
396 /* XXX TODO .. right shift numbers - not sure where that came from? */
397 IEEE80211_TX_CTL_AMPDU = BIT(0),
398 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
399 IEEE80211_TX_CTL_NO_ACK = BIT(2),
400 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
401 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
402 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
403 IEEE80211_TX_STATUS_EOSP = BIT(6),
404 IEEE80211_TX_STAT_ACK = BIT(7),
405 IEEE80211_TX_STAT_AMPDU = BIT(8),
406 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
407 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
408 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
409 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
410 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
411 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
412 IEEE80211_TX_CTL_INJECTED = BIT(15),
413 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
414 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
415 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
416 IEEE80211_TX_CTL_LDPC = BIT(19),
417 IEEE80211_TX_CTL_STBC = BIT(20),
418 } __packed;
419
420 enum ieee80211_tx_status_flags {
421 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
422 };
423
424 enum ieee80211_tx_control_flags {
425 /* XXX TODO .. right shift numbers */
426 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
427 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
428 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
429 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */
430 };
431
432 enum ieee80211_tx_rate_flags {
433 /* XXX TODO .. right shift numbers */
434 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
435 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
436 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
437 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
438 IEEE80211_TX_RC_MCS = BIT(4),
439 IEEE80211_TX_RC_SHORT_GI = BIT(5),
440 IEEE80211_TX_RC_VHT_MCS = BIT(6),
441 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
442 };
443
444 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128
445
446 #define IEEE80211_HT_CTL_LEN 4
447
448 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */
449 __le16 frame_control;
450 __le16 duration_id;
451 uint8_t addr1[ETH_ALEN];
452 uint8_t addr2[ETH_ALEN];
453 uint8_t addr3[ETH_ALEN];
454 __le16 seq_ctrl;
455 uint8_t addr4[ETH_ALEN];
456 };
457
458 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */
459 __le16 frame_control;
460 __le16 duration_id;
461 uint8_t addr1[ETH_ALEN];
462 uint8_t addr2[ETH_ALEN];
463 uint8_t addr3[ETH_ALEN];
464 __le16 seq_ctrl;
465 };
466
467 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */
468 __le16 frame_control;
469 __le16 duration_id;
470 uint8_t addr1[ETH_ALEN];
471 uint8_t addr2[ETH_ALEN];
472 uint8_t addr3[ETH_ALEN];
473 __le16 seq_ctrl;
474 __le16 qos_ctrl;
475 };
476
477 struct ieee80211_vendor_ie {
478 };
479
480 /* 802.11-2020, Table 9-359-Block Ack Action field values */
481 enum ieee80211_back {
482 WLAN_ACTION_ADDBA_REQ = 0,
483 };
484
485 enum ieee80211_sa_query {
486 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
487 };
488
489 /* 802.11-2020, Table 9-51-Category values */
490 enum ieee80211_category {
491 WLAN_CATEGORY_BACK = 3,
492 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */
493 };
494
495 /* 80211-2020 9.3.3.2 Format of Management frames */
496 struct ieee80211_mgmt {
497 __le16 frame_control;
498 __le16 duration_id;
499 uint8_t da[ETH_ALEN];
500 uint8_t sa[ETH_ALEN];
501 uint8_t bssid[ETH_ALEN];
502 __le16 seq_ctrl;
503 union {
504 /* 9.3.3.3 Beacon frame format */
505 struct {
506 uint64_t timestamp;
507 uint16_t beacon_int;
508 uint16_t capab_info;
509 uint8_t variable[0];
510 } beacon;
511 /* 9.3.3.5 Association Request frame format */
512 struct {
513 uint16_t capab_info;
514 uint16_t listen_interval;
515 uint8_t variable[0];
516 } assoc_req;
517 /* 9.3.3.10 Probe Request frame format */
518 struct {
519 uint8_t variable[0];
520 } probe_req;
521 /* 9.3.3.11 Probe Response frame format */
522 struct {
523 uint64_t timestamp;
524 uint16_t beacon_int;
525 uint16_t capab_info;
526 uint8_t variable[0];
527 } probe_resp;
528 /* 9.3.3.14 Action frame format */
529 struct {
530 /* 9.4.1.11 Action field */
531 uint8_t category;
532 /* 9.6.8 Public Action details */
533 union {
534 /* 9.6.2.5 TPC Report frame format */
535 struct {
536 uint8_t spec_mgmt;
537 uint8_t dialog_token;
538 /* uint32_t tpc_rep_elem:: */
539 uint8_t tpc_elem_id;
540 uint8_t tpc_elem_length;
541 uint8_t tpc_elem_tx_power;
542 uint8_t tpc_elem_link_margin;
543 } tpc_report;
544 /* 9.6.8.33 Fine Timing Measurement frame format */
545 struct {
546 uint8_t dialog_token;
547 uint8_t follow_up;
548 uint8_t tod[6];
549 uint8_t toa[6];
550 uint16_t tod_error;
551 uint16_t toa_error;
552 uint8_t variable[0];
553 } ftm;
554 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
555 struct {
556 uint8_t action_code;
557 uint8_t dialog_token;
558 uint16_t capab;
559 uint16_t timeout;
560 uint16_t start_seq_num;
561 /* Optional follows... */
562 uint8_t variable[0];
563 } addba_req;
564 /* XXX */
565 struct {
566 uint8_t dialog_token;
567 } wnm_timing_msr;
568 } u;
569 } action;
570 DECLARE_FLEX_ARRAY(uint8_t, body);
571 } u;
572 };
573
574 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
575 __le16 frame_control;
576 __le16 duration;
577 uint8_t ra[ETH_ALEN];
578 } __packed;
579
580 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
581 __le16 frame_control;
582 __le16 duration;
583 uint8_t ra[ETH_ALEN];
584 uint8_t ta[ETH_ALEN];
585 } __packed;
586
587 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
588 #define DBI_TO_MBI(_g) ((_g) * 100)
589 #define MBI_TO_DBI(_x) ((_x) / 100)
590 #define DBM_TO_MBM(_g) ((_g) * 100)
591 #define MBM_TO_DBM(_x) ((_x) / 100)
592
593 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
594 IEEE80211_SEQ_SEQ_SHIFT)
595 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
596 IEEE80211_SEQ_SEQ_MASK)
597
598 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
599 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
600 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
601
602 /* 9.4.2.21.1, Table 9-82. */
603 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
604 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
605
606 /* 9.4.2.1, Table 9-77. Element IDs. */
607 enum ieee80211_eid {
608 WLAN_EID_SSID = 0,
609 WLAN_EID_SUPP_RATES = 1,
610 WLAN_EID_DS_PARAMS = 3,
611 WLAN_EID_TIM = 5,
612 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
613 WLAN_EID_REQUEST = 10,
614 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
615 WLAN_EID_CHANNEL_SWITCH = 37,
616 WLAN_EID_MEASURE_REPORT = 39,
617 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
618 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
619 WLAN_EID_EXT_SUPP_RATES = 50,
620 WLAN_EID_EXT_NON_INHERITANCE = 56,
621 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
622 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
623 WLAN_EID_MULTI_BSSID_IDX = 85,
624 WLAN_EID_EXT_CAPABILITY = 127,
625 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
626 WLAN_EID_S1G_TWT = 216,
627 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
628 };
629
630 enum ieee80211_eid_ext {
631 WLAN_EID_EXT_HE_CAPABILITY = 35,
632 };
633
634 #define for_each_element(_elem, _data, _len) \
635 for (_elem = (const struct element *)(_data); \
636 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
637 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
638 _elem = (const struct element *)(_elem->data + _elem->datalen))
639
640 #define for_each_element_id(_elem, _eid, _data, _len) \
641 for_each_element(_elem, _data, _len) \
642 if (_elem->id == (_eid))
643
644 /* 9.4.1.7, Table 9-45. Reason codes. */
645 enum ieee80211_reason_code {
646 /* reserved = 0, */
647 WLAN_REASON_UNSPECIFIED = 1,
648 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
649 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
650 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
651 };
652
653 /* 9.4.1.9, Table 9-46. Status codes. */
654 enum ieee80211_status_code {
655 WLAN_STATUS_SUCCESS = 0,
656 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
657 };
658
659 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
660 struct ieee80211_trigger {
661 __le16 frame_control;
662 __le16 duration_id;
663 uint8_t ra[ETH_ALEN];
664 uint8_t ta[ETH_ALEN];
665 __le64 common_info; /* 8+ really */
666 uint8_t variable[];
667 };
668
669 /* Table 9-29c-Trigger Type subfield encoding */
670 enum {
671 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
672 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
673 #if 0
674 /* Not seen yet. */
675 BFRP = 0x1,
676 MU-RTS = 0x3,
677 BSRP = 0x4,
678 GCR MU-BAR = 0x5,
679 BQRP = 0x6,
680 NFRP = 0x7,
681 /* 0x8..0xf reserved */
682 #endif
683 IEEE80211_TRIGGER_TYPE_MASK = 0xf
684 };
685
686 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
687 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
688 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
689 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
690 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
691
692 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
693 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
694 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
695 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
696
697 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
698 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
699 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
700 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
701 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
702 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
703 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
704 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
705
706 struct ieee80211_twt_params {
707 int mantissa, min_twt_dur, twt;
708 uint16_t req_type;
709 };
710
711 struct ieee80211_twt_setup {
712 int control;
713 struct ieee80211_twt_params *params;
714 };
715
716 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
717 enum ieee80211_twt_setup_cmd {
718 TWT_SETUP_CMD_REQUEST = 0,
719 TWT_SETUP_CMD_SUGGEST = 1,
720 /* DEMAND = 2, */
721 /* GROUPING = 3, */
722 TWT_SETUP_CMD_ACCEPT = 4,
723 /* ALTERNATE = 5 */
724 TWT_SETUP_CMD_DICTATE = 6,
725 TWT_SETUP_CMD_REJECT = 7,
726 };
727
728 struct ieee80211_bssid_index {
729 int bssid_index;
730 };
731
732 enum ieee80211_ap_reg_power {
733 IEEE80211_REG_UNSET_AP,
734 IEEE80211_REG_LPI_AP,
735 IEEE80211_REG_SP_AP,
736 IEEE80211_REG_VLP_AP,
737 };
738
739 /*
740 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
741 * if Maximum Transmit Power Interpretation subfield is 1 or 3
742 */
743 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
744
745 /*
746 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
747 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
748 * United States (2)
749 */
750 #define IEEE80211_TPE_MAX_IE_NUM 8
751
752 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
753 struct ieee80211_tx_pwr_env {
754 uint8_t tx_power_info;
755 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
756 };
757
758 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
759 /* These are field masks (3bit/3bit/2bit). */
760 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
761 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
762 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
763
764 /*
765 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
766 * encoding
767 */
768 enum ieee80211_tx_pwr_interpretation_subfield_enc {
769 IEEE80211_TPE_LOCAL_EIRP,
770 IEEE80211_TPE_LOCAL_EIRP_PSD,
771 IEEE80211_TPE_REG_CLIENT_EIRP,
772 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
773 };
774
775 enum ieee80211_tx_pwr_category_6ghz {
776 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
777 };
778
779 /* 802.11-2020, 9.4.2.27 BSS Load element */
780 struct ieee80211_bss_load_elem {
781 uint16_t sta_count;
782 uint8_t channel_util;
783 uint16_t avail_adm_capa;
784 };
785
786 /* net80211: IEEE80211_IS_CTL() */
787 static __inline bool
ieee80211_is_ctl(__le16 fc)788 ieee80211_is_ctl(__le16 fc)
789 {
790 __le16 v;
791
792 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
793 v = htole16(IEEE80211_FC0_TYPE_CTL);
794
795 return (fc == v);
796 }
797
798 /* net80211: IEEE80211_IS_DATA() */
799 static __inline bool
ieee80211_is_data(__le16 fc)800 ieee80211_is_data(__le16 fc)
801 {
802 __le16 v;
803
804 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
805 v = htole16(IEEE80211_FC0_TYPE_DATA);
806
807 return (fc == v);
808 }
809
810 /* net80211: IEEE80211_IS_QOSDATA() */
811 static __inline bool
ieee80211_is_data_qos(__le16 fc)812 ieee80211_is_data_qos(__le16 fc)
813 {
814 __le16 v;
815
816 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
817 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
818
819 return (fc == v);
820 }
821
822 /* net80211: IEEE80211_IS_MGMT() */
823 static __inline bool
ieee80211_is_mgmt(__le16 fc)824 ieee80211_is_mgmt(__le16 fc)
825 {
826 __le16 v;
827
828 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
829 v = htole16(IEEE80211_FC0_TYPE_MGT);
830
831 return (fc == v);
832 }
833
834
835 /* Derived from net80211::ieee80211_anyhdrsize. */
836 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)837 ieee80211_hdrlen(__le16 fc)
838 {
839 unsigned int size;
840
841 if (ieee80211_is_ctl(fc)) {
842 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
843 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
844 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
845 return sizeof(struct ieee80211_frame_ack);
846 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
847 return sizeof(struct ieee80211_frame_bar);
848 }
849 return (sizeof(struct ieee80211_frame_min));
850 }
851
852 size = sizeof(struct ieee80211_frame);
853 if (ieee80211_is_data(fc)) {
854 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
855 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
856 size += IEEE80211_ADDR_LEN;
857 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
858 IEEE80211_FC0_TYPE_MASK)) ==
859 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
860 IEEE80211_FC0_TYPE_DATA))
861 size += sizeof(uint16_t);
862 }
863
864 if (ieee80211_is_mgmt(fc)) {
865 #ifdef __notyet__
866 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
867 __func__, fc, size);
868 #endif
869 ;
870 }
871
872 return (size);
873 }
874
875 static inline bool
ieee80211_is_trigger(__le16 fc)876 ieee80211_is_trigger(__le16 fc)
877 {
878 __le16 v;
879
880 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
881 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
882
883 return (fc == v);
884 }
885
886 static __inline bool
ieee80211_is_action(__le16 fc)887 ieee80211_is_action(__le16 fc)
888 {
889 __le16 v;
890
891 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
892 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
893
894 return (fc == v);
895 }
896
897 static __inline bool
ieee80211_is_probe_resp(__le16 fc)898 ieee80211_is_probe_resp(__le16 fc)
899 {
900 __le16 v;
901
902 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
903 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
904
905 return (fc == v);
906 }
907
908 static __inline bool
ieee80211_is_auth(__le16 fc)909 ieee80211_is_auth(__le16 fc)
910 {
911 __le16 v;
912
913 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
914 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
915
916 return (fc == v);
917 }
918
919 static __inline bool
ieee80211_is_assoc_req(__le16 fc)920 ieee80211_is_assoc_req(__le16 fc)
921 {
922 __le16 v;
923
924 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
925 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
926
927 return (fc == v);
928 }
929
930 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)931 ieee80211_is_assoc_resp(__le16 fc)
932 {
933 __le16 v;
934
935 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
936 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
937
938 return (fc == v);
939 }
940
941 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)942 ieee80211_is_reassoc_req(__le16 fc)
943 {
944 __le16 v;
945
946 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
947 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
948
949 return (fc == v);
950 }
951
952 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)953 ieee80211_is_reassoc_resp(__le16 fc)
954 {
955 __le16 v;
956
957 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
958 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
959
960 return (fc == v);
961 }
962
963 static __inline bool
ieee80211_is_disassoc(__le16 fc)964 ieee80211_is_disassoc(__le16 fc)
965 {
966 __le16 v;
967
968 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
969 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
970
971 return (fc == v);
972 }
973
974 static __inline bool
ieee80211_is_data_present(__le16 fc)975 ieee80211_is_data_present(__le16 fc)
976 {
977 __le16 v;
978
979 /* If it is a data frame and NODATA is not present. */
980 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
981 v = htole16(IEEE80211_FC0_TYPE_DATA);
982
983 return (fc == v);
984 }
985
986 static __inline bool
ieee80211_is_deauth(__le16 fc)987 ieee80211_is_deauth(__le16 fc)
988 {
989 __le16 v;
990
991 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
992 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
993
994 return (fc == v);
995 }
996
997 static __inline bool
ieee80211_is_beacon(__le16 fc)998 ieee80211_is_beacon(__le16 fc)
999 {
1000 __le16 v;
1001
1002 /*
1003 * For as much as I get it this comes in LE and unlike FreeBSD
1004 * where we get the entire frame header and u8[], here we get the
1005 * 9.2.4.1 Frame Control field only. Mask and compare.
1006 */
1007 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1008 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
1009
1010 return (fc == v);
1011 }
1012
1013
1014 static __inline bool
ieee80211_is_probe_req(__le16 fc)1015 ieee80211_is_probe_req(__le16 fc)
1016 {
1017 __le16 v;
1018
1019 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1020 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1021
1022 return (fc == v);
1023 }
1024
1025 static __inline bool
ieee80211_has_protected(__le16 fc)1026 ieee80211_has_protected(__le16 fc)
1027 {
1028
1029 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1030 }
1031
1032 static __inline bool
ieee80211_is_back_req(__le16 fc)1033 ieee80211_is_back_req(__le16 fc)
1034 {
1035 __le16 v;
1036
1037 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1038 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
1039
1040 return (fc == v);
1041 }
1042
1043 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1044 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1045 {
1046 struct ieee80211_mgmt *mgmt;
1047 __le16 fc;
1048
1049 mgmt = (struct ieee80211_mgmt *)skb->data;
1050 fc = mgmt->frame_control;
1051
1052 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1053 /* XXX we do not care about IBSS yet. */
1054
1055 if (!ieee80211_is_mgmt(fc))
1056 return (false);
1057 if (ieee80211_is_action(fc)) /* XXX FTM? */
1058 return (true); /* XXX false? */
1059 if (ieee80211_is_disassoc(fc))
1060 return (true);
1061 if (ieee80211_is_deauth(fc))
1062 return (true);
1063
1064 TODO();
1065
1066 return (false);
1067 }
1068
1069 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1070 ieee80211_is_nullfunc(__le16 fc)
1071 {
1072 __le16 v;
1073
1074 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1075 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1076
1077 return (fc == v);
1078 }
1079
1080 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1081 ieee80211_is_qos_nullfunc(__le16 fc)
1082 {
1083 __le16 v;
1084
1085 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1086 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1087
1088 return (fc == v);
1089 }
1090
1091 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1092 ieee80211_is_any_nullfunc(__le16 fc)
1093 {
1094
1095 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1096 }
1097
1098 static inline bool
ieee80211_is_pspoll(__le16 fc)1099 ieee80211_is_pspoll(__le16 fc)
1100 {
1101 __le16 v;
1102
1103 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1104 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1105
1106 return (fc == v);
1107 }
1108
1109 static __inline bool
ieee80211_has_a4(__le16 fc)1110 ieee80211_has_a4(__le16 fc)
1111 {
1112 __le16 v;
1113
1114 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1115 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1116
1117 return (fc == v);
1118 }
1119
1120 static __inline bool
ieee80211_has_order(__le16 fc)1121 ieee80211_has_order(__le16 fc)
1122 {
1123
1124 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1125 }
1126
1127 static __inline bool
ieee80211_has_retry(__le16 fc)1128 ieee80211_has_retry(__le16 fc)
1129 {
1130
1131 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1132 }
1133
1134
1135 static __inline bool
ieee80211_has_fromds(__le16 fc)1136 ieee80211_has_fromds(__le16 fc)
1137 {
1138
1139 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1140 }
1141
1142 static __inline bool
ieee80211_has_tods(__le16 fc)1143 ieee80211_has_tods(__le16 fc)
1144 {
1145
1146 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1147 }
1148
1149 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1150 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1151 {
1152
1153 if (ieee80211_has_a4(hdr->frame_control))
1154 return (hdr->addr4);
1155 if (ieee80211_has_fromds(hdr->frame_control))
1156 return (hdr->addr3);
1157 return (hdr->addr2);
1158 }
1159
1160 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1161 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1162 {
1163
1164 if (ieee80211_has_tods(hdr->frame_control))
1165 return (hdr->addr3);
1166 return (hdr->addr1);
1167 }
1168
1169 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1170 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1171 {
1172 TODO();
1173 return (false);
1174 }
1175
1176 static __inline bool
ieee80211_is_first_frag(__le16 fc)1177 ieee80211_is_first_frag(__le16 fc)
1178 {
1179 TODO();
1180 return (false);
1181 }
1182
1183 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1184 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1185 {
1186 TODO();
1187 return (false);
1188 }
1189
1190 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1191 ieee80211_is_ftm(struct sk_buff *skb)
1192 {
1193 TODO();
1194 return (false);
1195 }
1196
1197 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1198 ieee80211_is_timing_measurement(struct sk_buff *skb)
1199 {
1200 TODO();
1201 return (false);
1202 }
1203
1204 static __inline bool
ieee80211_has_pm(__le16 fc)1205 ieee80211_has_pm(__le16 fc)
1206 {
1207 TODO();
1208 return (false);
1209 }
1210
1211 static __inline bool
ieee80211_has_morefrags(__le16 fc)1212 ieee80211_has_morefrags(__le16 fc)
1213 {
1214
1215 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1216 return (fc != 0);
1217 }
1218
1219 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1220 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1221 {
1222 if (ieee80211_has_a4(hdr->frame_control))
1223 return (u8 *)hdr + 30;
1224 else
1225 return (u8 *)hdr + 24;
1226 }
1227
1228
1229 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1230