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