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_MAX_SIMUL_LINKS 0xf
299 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
300 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
301
302 struct ieee80211_mcs_info {
303 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN];
304 uint16_t rx_highest;
305 uint8_t tx_params;
306 uint8_t __reserved[3];
307 } __packed;
308
309 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
310 struct ieee80211_ht_cap {
311 uint16_t cap_info;
312 uint8_t ampdu_params_info;
313 struct ieee80211_mcs_info mcs;
314 uint16_t extended_ht_cap_info;
315 uint32_t tx_BF_cap_info;
316 uint8_t antenna_selection_info;
317 } __packed;
318
319 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
320 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
321 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
322 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
323
324 enum ieee80211_ht_max_ampdu_len {
325 IEEE80211_HT_MAX_AMPDU_64K
326 };
327
328 enum ieee80211_ampdu_mlme_action {
329 IEEE80211_AMPDU_RX_START,
330 IEEE80211_AMPDU_RX_STOP,
331 IEEE80211_AMPDU_TX_OPERATIONAL,
332 IEEE80211_AMPDU_TX_START,
333 IEEE80211_AMPDU_TX_STOP_CONT,
334 IEEE80211_AMPDU_TX_STOP_FLUSH,
335 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
336 };
337
338 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
339 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
340
341 enum ieee80211_chanctx_switch_mode {
342 CHANCTX_SWMODE_REASSIGN_VIF,
343 CHANCTX_SWMODE_SWAP_CONTEXTS,
344 };
345
346 enum ieee80211_chanctx_change_flags {
347 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
348 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
349 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
350 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
351 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
352 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5),
353 IEEE80211_CHANCTX_CHANGE_MIN_DEF = BIT(6),
354 };
355
356 enum ieee80211_frame_release_type {
357 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
358 IEEE80211_FRAME_RELEASE_UAPSD = 2,
359 };
360
361 enum ieee80211_p2p_attr_ids {
362 IEEE80211_P2P_ATTR_DEVICE_ID,
363 IEEE80211_P2P_ATTR_DEVICE_INFO,
364 IEEE80211_P2P_ATTR_GROUP_ID,
365 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
366 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
367 };
368
369 enum ieee80211_reconfig_type {
370 IEEE80211_RECONFIG_TYPE_RESTART,
371 IEEE80211_RECONFIG_TYPE_SUSPEND,
372 };
373
374 enum ieee80211_roc_type {
375 IEEE80211_ROC_TYPE_MGMT_TX,
376 IEEE80211_ROC_TYPE_NORMAL,
377 };
378
379 enum ieee80211_smps_mode {
380 IEEE80211_SMPS_OFF,
381 IEEE80211_SMPS_STATIC,
382 IEEE80211_SMPS_DYNAMIC,
383 IEEE80211_SMPS_AUTOMATIC,
384 IEEE80211_SMPS_NUM_MODES,
385 };
386
387 /* net80211::IEEE80211_S_* different but represents the state machine. */
388 /* Note: order here is important! */
389 enum ieee80211_sta_state {
390 IEEE80211_STA_NOTEXIST = 0,
391 IEEE80211_STA_NONE = 1,
392 IEEE80211_STA_AUTH = 2,
393 IEEE80211_STA_ASSOC = 3,
394 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
395 };
396
397 enum ieee80211_tx_info_flags {
398 /* XXX TODO .. right shift numbers - not sure where that came from? */
399 IEEE80211_TX_CTL_AMPDU = BIT(0),
400 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
401 IEEE80211_TX_CTL_NO_ACK = BIT(2),
402 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
403 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
404 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
405 IEEE80211_TX_STATUS_EOSP = BIT(6),
406 IEEE80211_TX_STAT_ACK = BIT(7),
407 IEEE80211_TX_STAT_AMPDU = BIT(8),
408 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
409 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
410 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
411 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
412 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
413 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
414 IEEE80211_TX_CTL_INJECTED = BIT(15),
415 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
416 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
417 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
418 IEEE80211_TX_CTL_LDPC = BIT(19),
419 IEEE80211_TX_CTL_STBC = BIT(20),
420 } __packed;
421
422 enum ieee80211_tx_status_flags {
423 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
424 };
425
426 enum ieee80211_tx_control_flags {
427 /* XXX TODO .. right shift numbers */
428 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
429 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
430 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
431 IEEE80211_TX_CTRL_DONT_USE_RATE_MASK = BIT(3),
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 /* 9.3.3.5 Association Request frame format */
515 struct {
516 uint16_t capab_info;
517 uint16_t listen_interval;
518 uint8_t variable[0];
519 } assoc_req;
520 /* 9.3.3.10 Probe Request frame format */
521 struct {
522 uint8_t variable[0];
523 } probe_req;
524 /* 9.3.3.11 Probe Response frame format */
525 struct {
526 uint64_t timestamp;
527 uint16_t beacon_int;
528 uint16_t capab_info;
529 uint8_t variable[0];
530 } probe_resp;
531 /* 9.3.3.14 Action frame format */
532 struct {
533 /* 9.4.1.11 Action field */
534 uint8_t category;
535 /* 9.6.8 Public Action details */
536 union {
537 /* 9.6.2.5 TPC Report frame format */
538 struct {
539 uint8_t spec_mgmt;
540 uint8_t dialog_token;
541 /* uint32_t tpc_rep_elem:: */
542 uint8_t tpc_elem_id;
543 uint8_t tpc_elem_length;
544 uint8_t tpc_elem_tx_power;
545 uint8_t tpc_elem_link_margin;
546 } tpc_report;
547 /* 9.6.8.33 Fine Timing Measurement frame format */
548 struct {
549 uint8_t dialog_token;
550 uint8_t follow_up;
551 uint8_t tod[6];
552 uint8_t toa[6];
553 uint16_t tod_error;
554 uint16_t toa_error;
555 uint8_t variable[0];
556 } ftm;
557 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
558 struct {
559 uint8_t action_code;
560 uint8_t dialog_token;
561 uint16_t capab;
562 uint16_t timeout;
563 uint16_t start_seq_num;
564 /* Optional follows... */
565 uint8_t variable[0];
566 } addba_req;
567 /* XXX */
568 struct {
569 uint8_t dialog_token;
570 } wnm_timing_msr;
571 } u;
572 } action;
573 DECLARE_FLEX_ARRAY(uint8_t, body);
574 } u;
575 };
576
577 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
578 __le16 frame_control;
579 __le16 duration;
580 uint8_t ra[ETH_ALEN];
581 } __packed;
582
583 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
584 __le16 frame_control;
585 __le16 duration;
586 uint8_t ra[ETH_ALEN];
587 uint8_t ta[ETH_ALEN];
588 } __packed;
589
590 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
591 #define DBI_TO_MBI(_g) ((_g) * 100)
592 #define MBI_TO_DBI(_x) ((_x) / 100)
593 #define DBM_TO_MBM(_g) ((_g) * 100)
594 #define MBM_TO_DBM(_x) ((_x) / 100)
595
596 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
597 IEEE80211_SEQ_SEQ_SHIFT)
598 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
599 IEEE80211_SEQ_SEQ_MASK)
600
601 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
602 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
603 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
604
605 /* 9.4.2.21.1, Table 9-82. */
606 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
607 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
608
609 /* 9.4.2.1, Table 9-77. Element IDs. */
610 enum ieee80211_eid {
611 WLAN_EID_SSID = 0,
612 WLAN_EID_SUPP_RATES = 1,
613 WLAN_EID_DS_PARAMS = 3,
614 WLAN_EID_TIM = 5,
615 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
616 WLAN_EID_REQUEST = 10,
617 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
618 WLAN_EID_CHANNEL_SWITCH = 37,
619 WLAN_EID_MEASURE_REPORT = 39,
620 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
621 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
622 WLAN_EID_EXT_SUPP_RATES = 50,
623 WLAN_EID_EXT_NON_INHERITANCE = 56,
624 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
625 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
626 WLAN_EID_MULTI_BSSID_IDX = 85,
627 WLAN_EID_EXT_CAPABILITY = 127,
628 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
629 WLAN_EID_S1G_TWT = 216,
630 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
631 };
632
633 enum ieee80211_eid_ext {
634 WLAN_EID_EXT_HE_CAPABILITY = 35,
635 };
636
637 #define for_each_element(_elem, _data, _len) \
638 for (_elem = (const struct element *)(_data); \
639 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
640 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
641 _elem = (const struct element *)(_elem->data + _elem->datalen))
642
643 #define for_each_element_id(_elem, _eid, _data, _len) \
644 for_each_element(_elem, _data, _len) \
645 if (_elem->id == (_eid))
646
647 /* 9.4.1.7, Table 9-45. Reason codes. */
648 enum ieee80211_reason_code {
649 /* reserved = 0, */
650 WLAN_REASON_UNSPECIFIED = 1,
651 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
652 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
653 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
654 };
655
656 /* 9.4.1.9, Table 9-46. Status codes. */
657 enum ieee80211_status_code {
658 WLAN_STATUS_SUCCESS = 0,
659 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
660 };
661
662 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
663 struct ieee80211_trigger {
664 __le16 frame_control;
665 __le16 duration_id;
666 uint8_t ra[ETH_ALEN];
667 uint8_t ta[ETH_ALEN];
668 __le64 common_info; /* 8+ really */
669 uint8_t variable[];
670 };
671
672 /* Table 9-29c-Trigger Type subfield encoding */
673 enum {
674 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
675 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
676 #if 0
677 /* Not seen yet. */
678 BFRP = 0x1,
679 MU-RTS = 0x3,
680 BSRP = 0x4,
681 GCR MU-BAR = 0x5,
682 BQRP = 0x6,
683 NFRP = 0x7,
684 /* 0x8..0xf reserved */
685 #endif
686 IEEE80211_TRIGGER_TYPE_MASK = 0xf
687 };
688
689 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
690 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
691 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
692 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
693 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
694
695 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
696 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
697 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
698 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
699
700 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
701 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
702 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
703 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
704 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
705 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
706 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
707 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
708
709 struct ieee80211_twt_params {
710 int mantissa, min_twt_dur, twt;
711 uint16_t req_type;
712 };
713
714 struct ieee80211_twt_setup {
715 int control;
716 struct ieee80211_twt_params *params;
717 };
718
719 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
720 enum ieee80211_twt_setup_cmd {
721 TWT_SETUP_CMD_REQUEST = 0,
722 TWT_SETUP_CMD_SUGGEST = 1,
723 /* DEMAND = 2, */
724 /* GROUPING = 3, */
725 TWT_SETUP_CMD_ACCEPT = 4,
726 /* ALTERNATE = 5 */
727 TWT_SETUP_CMD_DICTATE = 6,
728 TWT_SETUP_CMD_REJECT = 7,
729 };
730
731 struct ieee80211_bssid_index {
732 int bssid_index;
733 };
734
735 enum ieee80211_ap_reg_power {
736 IEEE80211_REG_UNSET_AP,
737 IEEE80211_REG_LPI_AP,
738 IEEE80211_REG_SP_AP,
739 IEEE80211_REG_VLP_AP,
740 };
741
742 /*
743 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
744 * if Maximum Transmit Power Interpretation subfield is 1 or 3
745 */
746 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
747
748 /*
749 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
750 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
751 * United States (2)
752 */
753 #define IEEE80211_TPE_MAX_IE_NUM 8
754
755 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
756 struct ieee80211_tx_pwr_env {
757 uint8_t tx_power_info;
758 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
759 };
760
761 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
762 /* These are field masks (3bit/3bit/2bit). */
763 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
764 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
765 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
766
767 /*
768 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
769 * encoding
770 */
771 enum ieee80211_tx_pwr_interpretation_subfield_enc {
772 IEEE80211_TPE_LOCAL_EIRP,
773 IEEE80211_TPE_LOCAL_EIRP_PSD,
774 IEEE80211_TPE_REG_CLIENT_EIRP,
775 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
776 };
777
778 enum ieee80211_tx_pwr_category_6ghz {
779 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
780 };
781
782 /* 802.11-2020, 9.4.2.27 BSS Load element */
783 struct ieee80211_bss_load_elem {
784 uint16_t sta_count;
785 uint8_t channel_util;
786 uint16_t avail_adm_capa;
787 };
788
789 struct ieee80211_p2p_noa_desc {
790 uint32_t count; /* uint8_t ? */
791 uint32_t duration;
792 uint32_t interval;
793 uint32_t start_time;
794 };
795
796 struct ieee80211_p2p_noa_attr {
797 uint8_t index;
798 uint8_t oppps_ctwindow;
799 struct ieee80211_p2p_noa_desc desc[4];
800 };
801
802
803 /* net80211: IEEE80211_IS_CTL() */
804 static __inline bool
ieee80211_is_ctl(__le16 fc)805 ieee80211_is_ctl(__le16 fc)
806 {
807 __le16 v;
808
809 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
810 v = htole16(IEEE80211_FC0_TYPE_CTL);
811
812 return (fc == v);
813 }
814
815 /* net80211: IEEE80211_IS_DATA() */
816 static __inline bool
ieee80211_is_data(__le16 fc)817 ieee80211_is_data(__le16 fc)
818 {
819 __le16 v;
820
821 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
822 v = htole16(IEEE80211_FC0_TYPE_DATA);
823
824 return (fc == v);
825 }
826
827 /* net80211: IEEE80211_IS_QOSDATA() */
828 static __inline bool
ieee80211_is_data_qos(__le16 fc)829 ieee80211_is_data_qos(__le16 fc)
830 {
831 __le16 v;
832
833 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
834 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
835
836 return (fc == v);
837 }
838
839 /* net80211: IEEE80211_IS_MGMT() */
840 static __inline bool
ieee80211_is_mgmt(__le16 fc)841 ieee80211_is_mgmt(__le16 fc)
842 {
843 __le16 v;
844
845 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
846 v = htole16(IEEE80211_FC0_TYPE_MGT);
847
848 return (fc == v);
849 }
850
851
852 /* Derived from net80211::ieee80211_anyhdrsize. */
853 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)854 ieee80211_hdrlen(__le16 fc)
855 {
856 unsigned int size;
857
858 if (ieee80211_is_ctl(fc)) {
859 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
860 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
861 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
862 return sizeof(struct ieee80211_frame_ack);
863 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
864 return sizeof(struct ieee80211_frame_bar);
865 }
866 return (sizeof(struct ieee80211_frame_min));
867 }
868
869 size = sizeof(struct ieee80211_frame);
870 if (ieee80211_is_data(fc)) {
871 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
872 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
873 size += IEEE80211_ADDR_LEN;
874 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
875 IEEE80211_FC0_TYPE_MASK)) ==
876 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
877 IEEE80211_FC0_TYPE_DATA))
878 size += sizeof(uint16_t);
879 }
880
881 if (ieee80211_is_mgmt(fc)) {
882 #ifdef __notyet__
883 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
884 __func__, fc, size);
885 #endif
886 ;
887 }
888
889 return (size);
890 }
891
892 static inline bool
ieee80211_is_trigger(__le16 fc)893 ieee80211_is_trigger(__le16 fc)
894 {
895 __le16 v;
896
897 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
898 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
899
900 return (fc == v);
901 }
902
903 static __inline bool
ieee80211_is_action(__le16 fc)904 ieee80211_is_action(__le16 fc)
905 {
906 __le16 v;
907
908 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
909 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
910
911 return (fc == v);
912 }
913
914 static __inline bool
ieee80211_is_probe_resp(__le16 fc)915 ieee80211_is_probe_resp(__le16 fc)
916 {
917 __le16 v;
918
919 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
920 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
921
922 return (fc == v);
923 }
924
925 static __inline bool
ieee80211_is_auth(__le16 fc)926 ieee80211_is_auth(__le16 fc)
927 {
928 __le16 v;
929
930 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
931 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
932
933 return (fc == v);
934 }
935
936 static __inline bool
ieee80211_is_assoc_req(__le16 fc)937 ieee80211_is_assoc_req(__le16 fc)
938 {
939 __le16 v;
940
941 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
942 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
943
944 return (fc == v);
945 }
946
947 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)948 ieee80211_is_assoc_resp(__le16 fc)
949 {
950 __le16 v;
951
952 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
953 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
954
955 return (fc == v);
956 }
957
958 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)959 ieee80211_is_reassoc_req(__le16 fc)
960 {
961 __le16 v;
962
963 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
964 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
965
966 return (fc == v);
967 }
968
969 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)970 ieee80211_is_reassoc_resp(__le16 fc)
971 {
972 __le16 v;
973
974 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
975 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
976
977 return (fc == v);
978 }
979
980 static __inline bool
ieee80211_is_disassoc(__le16 fc)981 ieee80211_is_disassoc(__le16 fc)
982 {
983 __le16 v;
984
985 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
986 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
987
988 return (fc == v);
989 }
990
991 static __inline bool
ieee80211_is_data_present(__le16 fc)992 ieee80211_is_data_present(__le16 fc)
993 {
994 __le16 v;
995
996 /* If it is a data frame and NODATA is not present. */
997 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
998 v = htole16(IEEE80211_FC0_TYPE_DATA);
999
1000 return (fc == v);
1001 }
1002
1003 static __inline bool
ieee80211_is_deauth(__le16 fc)1004 ieee80211_is_deauth(__le16 fc)
1005 {
1006 __le16 v;
1007
1008 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1009 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
1010
1011 return (fc == v);
1012 }
1013
1014 static __inline bool
ieee80211_is_beacon(__le16 fc)1015 ieee80211_is_beacon(__le16 fc)
1016 {
1017 __le16 v;
1018
1019 /*
1020 * For as much as I get it this comes in LE and unlike FreeBSD
1021 * where we get the entire frame header and u8[], here we get the
1022 * 9.2.4.1 Frame Control field only. Mask and compare.
1023 */
1024 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1025 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
1026
1027 return (fc == v);
1028 }
1029
1030
1031 static __inline bool
ieee80211_is_probe_req(__le16 fc)1032 ieee80211_is_probe_req(__le16 fc)
1033 {
1034 __le16 v;
1035
1036 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1037 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1038
1039 return (fc == v);
1040 }
1041
1042 static __inline bool
ieee80211_has_protected(__le16 fc)1043 ieee80211_has_protected(__le16 fc)
1044 {
1045
1046 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1047 }
1048
1049 static __inline bool
ieee80211_is_back_req(__le16 fc)1050 ieee80211_is_back_req(__le16 fc)
1051 {
1052 __le16 v;
1053
1054 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1055 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
1056
1057 return (fc == v);
1058 }
1059
1060 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1061 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1062 {
1063 struct ieee80211_mgmt *mgmt;
1064 __le16 fc;
1065
1066 mgmt = (struct ieee80211_mgmt *)skb->data;
1067 fc = mgmt->frame_control;
1068
1069 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1070 /* XXX we do not care about IBSS yet. */
1071
1072 if (!ieee80211_is_mgmt(fc))
1073 return (false);
1074 if (ieee80211_is_action(fc)) /* XXX FTM? */
1075 return (true); /* XXX false? */
1076 if (ieee80211_is_disassoc(fc))
1077 return (true);
1078 if (ieee80211_is_deauth(fc))
1079 return (true);
1080
1081 TODO();
1082
1083 return (false);
1084 }
1085
1086 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1087 ieee80211_is_nullfunc(__le16 fc)
1088 {
1089 __le16 v;
1090
1091 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1092 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1093
1094 return (fc == v);
1095 }
1096
1097 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1098 ieee80211_is_qos_nullfunc(__le16 fc)
1099 {
1100 __le16 v;
1101
1102 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1103 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1104
1105 return (fc == v);
1106 }
1107
1108 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1109 ieee80211_is_any_nullfunc(__le16 fc)
1110 {
1111
1112 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1113 }
1114
1115 static inline bool
ieee80211_is_pspoll(__le16 fc)1116 ieee80211_is_pspoll(__le16 fc)
1117 {
1118 __le16 v;
1119
1120 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1121 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1122
1123 return (fc == v);
1124 }
1125
1126 static __inline bool
ieee80211_has_a4(__le16 fc)1127 ieee80211_has_a4(__le16 fc)
1128 {
1129 __le16 v;
1130
1131 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1132 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1133
1134 return (fc == v);
1135 }
1136
1137 static __inline bool
ieee80211_has_order(__le16 fc)1138 ieee80211_has_order(__le16 fc)
1139 {
1140
1141 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1142 }
1143
1144 static __inline bool
ieee80211_has_retry(__le16 fc)1145 ieee80211_has_retry(__le16 fc)
1146 {
1147
1148 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1149 }
1150
1151
1152 static __inline bool
ieee80211_has_fromds(__le16 fc)1153 ieee80211_has_fromds(__le16 fc)
1154 {
1155
1156 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1157 }
1158
1159 static __inline bool
ieee80211_has_tods(__le16 fc)1160 ieee80211_has_tods(__le16 fc)
1161 {
1162
1163 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1164 }
1165
1166 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1167 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1168 {
1169
1170 if (ieee80211_has_a4(hdr->frame_control))
1171 return (hdr->addr4);
1172 if (ieee80211_has_fromds(hdr->frame_control))
1173 return (hdr->addr3);
1174 return (hdr->addr2);
1175 }
1176
1177 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1178 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1179 {
1180
1181 if (ieee80211_has_tods(hdr->frame_control))
1182 return (hdr->addr3);
1183 return (hdr->addr1);
1184 }
1185
1186 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1187 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1188 {
1189 TODO();
1190 return (false);
1191 }
1192
1193 static __inline bool
ieee80211_is_first_frag(__le16 fc)1194 ieee80211_is_first_frag(__le16 fc)
1195 {
1196 TODO();
1197 return (false);
1198 }
1199
1200 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1201 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1202 {
1203 TODO();
1204 return (false);
1205 }
1206
1207 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1208 ieee80211_is_ftm(struct sk_buff *skb)
1209 {
1210 TODO();
1211 return (false);
1212 }
1213
1214 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1215 ieee80211_is_timing_measurement(struct sk_buff *skb)
1216 {
1217 TODO();
1218 return (false);
1219 }
1220
1221 static __inline bool
ieee80211_has_pm(__le16 fc)1222 ieee80211_has_pm(__le16 fc)
1223 {
1224 TODO();
1225 return (false);
1226 }
1227
1228 static __inline bool
ieee80211_has_morefrags(__le16 fc)1229 ieee80211_has_morefrags(__le16 fc)
1230 {
1231
1232 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1233 return (fc != 0);
1234 }
1235
1236 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1237 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1238 {
1239 if (ieee80211_has_a4(hdr->frame_control))
1240 return (u8 *)hdr + 30;
1241 else
1242 return (u8 *)hdr + 24;
1243 }
1244
1245 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1246