1 /*-
2 * Copyright (c) 2020-2024 The FreeBSD Foundation
3 *
4 * This software was developed by Björn Zeeb under sponsorship from
5 * the FreeBSD Foundation.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #ifndef _LINUXKPI_LINUX_IEEE80211_H
30 #define _LINUXKPI_LINUX_IEEE80211_H
31
32 #include <sys/types.h>
33 #include <net80211/ieee80211.h>
34
35 #include <asm/unaligned.h>
36 #include <linux/kernel.h>
37 #include <linux/bitops.h>
38 #include <linux/if_ether.h>
39
40 /* linux_80211.c */
41 extern int linuxkpi_debug_80211;
42 #ifndef D80211_TODO
43 #define D80211_TODO 0x1
44 #endif
45 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \
46 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__)
47
48
49 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */
50 struct ieee80211_mmie_16 {
51 uint8_t element_id;
52 uint8_t length;
53 uint16_t key_id;
54 uint8_t ipn[6];
55 uint8_t mic[16];
56 };
57
58 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */
59 #define IEEE80211_CCMP_PN_LEN 6
60 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */
61 #define IEEE80211_CCMP_256_HDR_LEN 8
62 #define IEEE80211_CCMP_256_MIC_LEN 16
63 #define IEEE80211_GCMP_HDR_LEN 8
64 #define IEEE80211_GCMP_MIC_LEN 16
65 #define IEEE80211_GCMP_PN_LEN 6
66 #define IEEE80211_GMAC_PN_LEN 6
67
68 #define IEEE80211_MAX_PN_LEN 16
69
70 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1)
71
72 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX
73 #define IEEE80211_MAX_AMPDU_BUF_HE 256
74 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024
75
76 #define IEEE80211_MAX_FRAME_LEN 2352
77 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN)
78
79 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */
80 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
81 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935
82 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
83 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
84 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
85
86 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */
87
88 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */
89
90 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */
91 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f
92 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
93
94 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */
95 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
96 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID
97 #define IEEE80211_QOS_CTL_EOSP 0x0010
98 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
99 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
100 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
101 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
102
103 #define IEEE80211_RATE_SHORT_PREAMBLE BIT(0)
104
105 enum ieee80211_rate_control_changed_flags {
106 IEEE80211_RC_BW_CHANGED = BIT(0),
107 IEEE80211_RC_NSS_CHANGED = BIT(1),
108 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
109 IEEE80211_RC_SMPS_CHANGED = BIT(3),
110 };
111
112 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK
113 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK
114
115 #define IEEE80211_TKIP_ICV_LEN 4
116 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */
117
118 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* assigned to tx_highest */
119
120 #define IEEE80211_VHT_MAX_AMPDU_1024K 7 /* 9.4.2.56.3 A-MPDU Parameters field, Table 9-163 */
121
122 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */
123 #define IEEE80211_WEP_ICV_LEN 4
124
125 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */
126 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */
127 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */
128 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */
129
130 enum wlan_ht_cap_sm_ps {
131 WLAN_HT_CAP_SM_PS_STATIC = 0,
132 WLAN_HT_CAP_SM_PS_DYNAMIC,
133 WLAN_HT_CAP_SM_PS_INVALID,
134 WLAN_HT_CAP_SM_PS_DISABLED,
135 };
136
137 #define WLAN_MAX_KEY_LEN 32
138 #define WLAN_PMKID_LEN 16
139 #define WLAN_PMK_LEN_SUITE_B_192 48
140
141 enum ieee80211_key_len {
142 WLAN_KEY_LEN_WEP40 = 5,
143 WLAN_KEY_LEN_WEP104 = 13,
144 WLAN_KEY_LEN_TKIP = 32,
145 WLAN_KEY_LEN_CCMP = 16,
146 WLAN_KEY_LEN_GCMP = 16,
147 WLAN_KEY_LEN_AES_CMAC = 16,
148 WLAN_KEY_LEN_GCMP_256 = 32,
149 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
150 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
151 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
152 };
153
154 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */
155 enum ieee80211_min_mpdu_start_spacing {
156 IEEE80211_HT_MPDU_DENSITY_NONE = 0,
157 #if 0
158 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */
159 #endif
160 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */
161 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */
162 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */
163 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */
164 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */
165 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */
166 };
167
168 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */
169 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */
170
171 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK
172 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK
173 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8)
174 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8)
175 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8)
176 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8)
177 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8)
178 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8)
179
180 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT
181 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL
182 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA
183
184 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ
185 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ
186 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ
187 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC
188 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH
189 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH
190 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS
191 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS
192 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION
193 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA
194 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA
195 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL
196 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */
197
198 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */
199
200 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */
201
202
203 /* Figure 9-27, BAR Control field */
204 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
205 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
206
207 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */
208 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */
209 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */
210 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */
211 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */
212
213 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */
214 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */
215 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */
216 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */
217 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */
218 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */
219
220
221 /* 9.6.13.1, Table 9-342 TDLS Action field values. */
222 enum ieee80211_tdls_action_code {
223 WLAN_TDLS_SETUP_REQUEST = 0,
224 WLAN_TDLS_SETUP_RESPONSE = 1,
225 WLAN_TDLS_SETUP_CONFIRM = 2,
226 WLAN_TDLS_TEARDOWN = 3,
227 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
228 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
229 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
230 WLAN_TDLS_PEER_PSM_REQUEST = 7,
231 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
232 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
233 WLAN_TDLS_DISCOVERY_REQUEST = 10,
234 /* 11-255 reserved */
235 };
236
237 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */
238 /* This is split up into octets CAPA1 = octet 1, ... */
239 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8)
240 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8)
241 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8)
242 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8)
243 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8)
244 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8)
245 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8)
246 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8)
247 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8)
248
249 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */
250
251
252 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */
253 /* Would be so much easier if we'd define constants to the same. */
254 enum ieee80211_ac_numbers {
255 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */
256 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */
257 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */
258 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */
259 };
260
261 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */
262
263 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1
264 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2
265 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4
266 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8
267 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf
268
269
270 /* Define the LinuxKPI names directly to the net80211 ones. */
271 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC
272 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40
273 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS
274 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
275 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD
276 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20
277 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40
278 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC
279 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC
280 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S
281 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU
282 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40
283 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT
284
285 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001
286 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002
287 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
288 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c
289 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
290 #define IEEE80211_HT_MCS_MASK_LEN 10
291
292 #define IEEE80211_MLD_MAX_NUM_LINKS 15
293 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
294 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
295
296 struct ieee80211_mcs_info {
297 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN];
298 uint16_t rx_highest;
299 uint8_t tx_params;
300 uint8_t __reserved[3];
301 };
302
303 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
304 struct ieee80211_ht_cap {
305 uint16_t cap_info;
306 uint8_t ampdu_params_info;
307 struct ieee80211_mcs_info mcs;
308 uint16_t extended_ht_cap_info;
309 uint32_t tx_BF_cap_info;
310 uint8_t antenna_selection_info;
311 };
312
313 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
314 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
315 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
316 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
317
318 enum ieee80211_ht_max_ampdu_len {
319 IEEE80211_HT_MAX_AMPDU_64K
320 };
321
322 enum ieee80211_ampdu_mlme_action {
323 IEEE80211_AMPDU_RX_START,
324 IEEE80211_AMPDU_RX_STOP,
325 IEEE80211_AMPDU_TX_OPERATIONAL,
326 IEEE80211_AMPDU_TX_START,
327 IEEE80211_AMPDU_TX_STOP_CONT,
328 IEEE80211_AMPDU_TX_STOP_FLUSH,
329 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
330 };
331
332 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
333 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
334
335 enum ieee80211_chanctx_switch_mode {
336 CHANCTX_SWMODE_REASSIGN_VIF,
337 CHANCTX_SWMODE_SWAP_CONTEXTS,
338 };
339
340 enum ieee80211_chanctx_change_flags {
341 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
342 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
343 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
344 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
345 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
346 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5),
347 };
348
349 enum ieee80211_frame_release_type {
350 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
351 IEEE80211_FRAME_RELEASE_UAPSD = 2,
352 };
353
354 enum ieee80211_p2p_attr_ids {
355 IEEE80211_P2P_ATTR_DEVICE_ID,
356 IEEE80211_P2P_ATTR_DEVICE_INFO,
357 IEEE80211_P2P_ATTR_GROUP_ID,
358 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
359 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
360 };
361
362 enum ieee80211_reconfig_type {
363 IEEE80211_RECONFIG_TYPE_RESTART,
364 IEEE80211_RECONFIG_TYPE_SUSPEND,
365 };
366
367 enum ieee80211_roc_type {
368 IEEE80211_ROC_TYPE_MGMT_TX,
369 IEEE80211_ROC_TYPE_NORMAL,
370 };
371
372 enum ieee80211_smps_mode {
373 IEEE80211_SMPS_OFF,
374 IEEE80211_SMPS_STATIC,
375 IEEE80211_SMPS_DYNAMIC,
376 IEEE80211_SMPS_AUTOMATIC,
377 IEEE80211_SMPS_NUM_MODES,
378 };
379
380 /* net80211::IEEE80211_S_* different but represents the state machine. */
381 /* Note: order here is important! */
382 enum ieee80211_sta_state {
383 IEEE80211_STA_NOTEXIST = 0,
384 IEEE80211_STA_NONE = 1,
385 IEEE80211_STA_AUTH = 2,
386 IEEE80211_STA_ASSOC = 3,
387 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
388 };
389
390 enum ieee80211_tx_info_flags {
391 /* XXX TODO .. right shift numbers - not sure where that came from? */
392 IEEE80211_TX_CTL_AMPDU = BIT(0),
393 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
394 IEEE80211_TX_CTL_NO_ACK = BIT(2),
395 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
396 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
397 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
398 IEEE80211_TX_STATUS_EOSP = BIT(6),
399 IEEE80211_TX_STAT_ACK = BIT(7),
400 IEEE80211_TX_STAT_AMPDU = BIT(8),
401 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
402 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
403 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
404 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
405 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
406 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
407 IEEE80211_TX_CTL_INJECTED = BIT(15),
408 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
409 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
410 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
411 IEEE80211_TX_CTL_LDPC = BIT(19),
412 IEEE80211_TX_CTL_STBC = BIT(20),
413 };
414
415 enum ieee80211_tx_status_flags {
416 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
417 };
418
419 enum ieee80211_tx_control_flags {
420 /* XXX TODO .. right shift numbers */
421 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
422 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
423 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
424 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */
425 };
426
427 enum ieee80211_tx_rate_flags {
428 /* XXX TODO .. right shift numbers */
429 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
430 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
431 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
432 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
433 IEEE80211_TX_RC_MCS = BIT(4),
434 IEEE80211_TX_RC_SHORT_GI = BIT(5),
435 IEEE80211_TX_RC_VHT_MCS = BIT(6),
436 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
437 };
438
439 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128
440
441 #define IEEE80211_HT_CTL_LEN 4
442
443 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */
444 __le16 frame_control;
445 __le16 duration_id;
446 uint8_t addr1[ETH_ALEN];
447 uint8_t addr2[ETH_ALEN];
448 uint8_t addr3[ETH_ALEN];
449 __le16 seq_ctrl;
450 uint8_t addr4[ETH_ALEN];
451 };
452
453 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */
454 __le16 frame_control;
455 __le16 duration_id;
456 uint8_t addr1[ETH_ALEN];
457 uint8_t addr2[ETH_ALEN];
458 uint8_t addr3[ETH_ALEN];
459 __le16 seq_ctrl;
460 };
461
462 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */
463 __le16 frame_control;
464 __le16 duration_id;
465 uint8_t addr1[ETH_ALEN];
466 uint8_t addr2[ETH_ALEN];
467 uint8_t addr3[ETH_ALEN];
468 __le16 seq_ctrl;
469 __le16 qos_ctrl;
470 };
471
472 struct ieee80211_vendor_ie {
473 };
474
475 /* 802.11-2020, Table 9-359-Block Ack Action field values */
476 enum ieee80211_back {
477 WLAN_ACTION_ADDBA_REQ = 0,
478 };
479
480 enum ieee80211_sa_query {
481 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
482 };
483
484 /* 802.11-2020, Table 9-51-Category values */
485 enum ieee80211_category {
486 WLAN_CATEGORY_BACK = 3,
487 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */
488 };
489
490 /* 80211-2020 9.3.3.2 Format of Management frames */
491 struct ieee80211_mgmt {
492 __le16 frame_control;
493 __le16 duration_id;
494 uint8_t da[ETH_ALEN];
495 uint8_t sa[ETH_ALEN];
496 uint8_t bssid[ETH_ALEN];
497 __le16 seq_ctrl;
498 union {
499 /* 9.3.3.3 Beacon frame format */
500 struct {
501 uint64_t timestamp;
502 uint16_t beacon_int;
503 uint16_t capab_info;
504 uint8_t variable[0];
505 } beacon;
506 /* 9.3.3.10 Probe Request frame format */
507 struct {
508 uint8_t variable[0];
509 } probe_req;
510 /* 9.3.3.11 Probe Response frame format */
511 struct {
512 uint64_t timestamp;
513 uint16_t beacon_int;
514 uint16_t capab_info;
515 uint8_t variable[0];
516 } probe_resp;
517 /* 9.3.3.14 Action frame format */
518 struct {
519 /* 9.4.1.11 Action field */
520 uint8_t category;
521 /* 9.6.8 Public Action details */
522 union {
523 /* 9.6.2.5 TPC Report frame format */
524 struct {
525 uint8_t spec_mgmt;
526 uint8_t dialog_token;
527 /* uint32_t tpc_rep_elem:: */
528 uint8_t tpc_elem_id;
529 uint8_t tpc_elem_length;
530 uint8_t tpc_elem_tx_power;
531 uint8_t tpc_elem_link_margin;
532 } tpc_report;
533 /* 9.6.8.33 Fine Timing Measurement frame format */
534 struct {
535 uint8_t dialog_token;
536 uint8_t follow_up;
537 uint8_t tod[6];
538 uint8_t toa[6];
539 uint16_t tod_error;
540 uint16_t toa_error;
541 uint8_t variable[0];
542 } ftm;
543 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
544 struct {
545 uint8_t action_code;
546 uint8_t dialog_token;
547 uint16_t capab;
548 uint16_t timeout;
549 uint16_t start_seq_num;
550 /* Optional follows... */
551 uint8_t variable[0];
552 } addba_req;
553 /* XXX */
554 struct {
555 uint8_t dialog_token;
556 } wnm_timing_msr;
557 } u;
558 } action;
559 DECLARE_FLEX_ARRAY(uint8_t, body);
560 } u;
561 };
562
563 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
564 __le16 frame_control;
565 __le16 duration;
566 uint8_t ra[ETH_ALEN];
567 } __packed;
568
569 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
570 __le16 frame_control;
571 __le16 duration;
572 uint8_t ra[ETH_ALEN];
573 uint8_t ta[ETH_ALEN];
574 } __packed;
575
576 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
577 #define DBI_TO_MBI(_g) ((_g) * 100)
578 #define MBI_TO_DBI(_x) ((_x) / 100)
579 #define DBM_TO_MBM(_g) ((_g) * 100)
580 #define MBM_TO_DBM(_x) ((_x) / 100)
581
582 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
583 IEEE80211_SEQ_SEQ_SHIFT)
584 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
585 IEEE80211_SEQ_SEQ_MASK)
586
587 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
588 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
589 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
590
591 /* 9.4.2.21.1, Table 9-82. */
592 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
593 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
594
595 /* 9.4.2.1, Table 9-77. Element IDs. */
596 enum ieee80211_eid {
597 WLAN_EID_SSID = 0,
598 WLAN_EID_SUPP_RATES = 1,
599 WLAN_EID_DS_PARAMS = 3,
600 WLAN_EID_TIM = 5,
601 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
602 WLAN_EID_REQUEST = 10,
603 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
604 WLAN_EID_CHANNEL_SWITCH = 37,
605 WLAN_EID_MEASURE_REPORT = 39,
606 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
607 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
608 WLAN_EID_EXT_SUPP_RATES = 50,
609 WLAN_EID_EXT_NON_INHERITANCE = 56,
610 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
611 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
612 WLAN_EID_MULTI_BSSID_IDX = 85,
613 WLAN_EID_EXT_CAPABILITY = 127,
614 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
615 WLAN_EID_S1G_TWT = 216,
616 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
617 };
618
619 enum ieee80211_eid_ext {
620 WLAN_EID_EXT_HE_CAPABILITY = 35,
621 };
622
623 #define for_each_element(_elem, _data, _len) \
624 for (_elem = (const struct element *)(_data); \
625 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
626 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
627 _elem = (const struct element *)(_elem->data + _elem->datalen))
628
629 #define for_each_element_id(_elem, _eid, _data, _len) \
630 for_each_element(_elem, _data, _len) \
631 if (_elem->id == (_eid))
632
633 /* 9.4.1.7, Table 9-45. Reason codes. */
634 enum ieee80211_reason_code {
635 /* reserved = 0, */
636 WLAN_REASON_UNSPECIFIED = 1,
637 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
638 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
639 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
640 };
641
642 /* 9.4.1.9, Table 9-46. Status codes. */
643 enum ieee80211_status_code {
644 WLAN_STATUS_SUCCESS = 0,
645 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
646 };
647
648 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
649 struct ieee80211_trigger {
650 __le16 frame_control;
651 __le16 duration_id;
652 uint8_t ra[ETH_ALEN];
653 uint8_t ta[ETH_ALEN];
654 __le64 common_info; /* 8+ really */
655 uint8_t variable[];
656 };
657
658 /* Table 9-29c-Trigger Type subfield encoding */
659 enum {
660 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
661 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
662 #if 0
663 /* Not seen yet. */
664 BFRP = 0x1,
665 MU-RTS = 0x3,
666 BSRP = 0x4,
667 GCR MU-BAR = 0x5,
668 BQRP = 0x6,
669 NFRP = 0x7,
670 /* 0x8..0xf reserved */
671 #endif
672 IEEE80211_TRIGGER_TYPE_MASK = 0xf
673 };
674
675 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
676 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
677 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
678 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
679 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
680
681 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
682 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
683 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
684 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
685
686 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
687 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
688 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
689 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
690 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
691 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
692 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
693 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
694
695 struct ieee80211_twt_params {
696 int mantissa, min_twt_dur, twt;
697 uint16_t req_type;
698 };
699
700 struct ieee80211_twt_setup {
701 int control;
702 struct ieee80211_twt_params *params;
703 };
704
705 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
706 enum ieee80211_twt_setup_cmd {
707 TWT_SETUP_CMD_REQUEST = 0,
708 TWT_SETUP_CMD_SUGGEST = 1,
709 /* DEMAND = 2, */
710 /* GROUPING = 3, */
711 TWT_SETUP_CMD_ACCEPT = 4,
712 /* ALTERNATE = 5 */
713 TWT_SETUP_CMD_DICTATE = 6,
714 TWT_SETUP_CMD_REJECT = 7,
715 };
716
717 struct ieee80211_bssid_index {
718 int bssid_index;
719 };
720
721 enum ieee80211_ap_reg_power {
722 IEEE80211_REG_UNSET_AP,
723 IEEE80211_REG_LPI_AP,
724 IEEE80211_REG_SP_AP,
725 IEEE80211_REG_VLP_AP,
726 };
727
728 /*
729 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
730 * if Maximum Transmit Power Interpretation subfield is 1 or 3
731 */
732 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
733
734 /*
735 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
736 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
737 * United States (2)
738 */
739 #define IEEE80211_TPE_MAX_IE_NUM 8
740
741 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
742 struct ieee80211_tx_pwr_env {
743 uint8_t tx_power_info;
744 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
745 };
746
747 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
748 /* These are field masks (3bit/3bit/2bit). */
749 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
750 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
751 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
752
753 /*
754 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
755 * encoding
756 */
757 enum ieee80211_tx_pwr_interpretation_subfield_enc {
758 IEEE80211_TPE_LOCAL_EIRP,
759 IEEE80211_TPE_LOCAL_EIRP_PSD,
760 IEEE80211_TPE_REG_CLIENT_EIRP,
761 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
762 };
763
764 enum ieee80211_tx_pwr_category_6ghz {
765 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
766 };
767
768 /* 802.11-2020, 9.4.2.27 BSS Load element */
769 struct ieee80211_bss_load_elem {
770 uint16_t sta_count;
771 uint8_t channel_util;
772 uint16_t avail_adm_capa;
773 };
774
775 /* net80211: IEEE80211_IS_CTL() */
776 static __inline bool
ieee80211_is_ctl(__le16 fc)777 ieee80211_is_ctl(__le16 fc)
778 {
779 __le16 v;
780
781 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
782 v = htole16(IEEE80211_FC0_TYPE_CTL);
783
784 return (fc == v);
785 }
786
787 /* net80211: IEEE80211_IS_DATA() */
788 static __inline bool
ieee80211_is_data(__le16 fc)789 ieee80211_is_data(__le16 fc)
790 {
791 __le16 v;
792
793 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
794 v = htole16(IEEE80211_FC0_TYPE_DATA);
795
796 return (fc == v);
797 }
798
799 /* net80211: IEEE80211_IS_QOSDATA() */
800 static __inline bool
ieee80211_is_data_qos(__le16 fc)801 ieee80211_is_data_qos(__le16 fc)
802 {
803 __le16 v;
804
805 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
806 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
807
808 return (fc == v);
809 }
810
811 /* net80211: IEEE80211_IS_MGMT() */
812 static __inline bool
ieee80211_is_mgmt(__le16 fc)813 ieee80211_is_mgmt(__le16 fc)
814 {
815 __le16 v;
816
817 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
818 v = htole16(IEEE80211_FC0_TYPE_MGT);
819
820 return (fc == v);
821 }
822
823
824 /* Derived from net80211::ieee80211_anyhdrsize. */
825 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)826 ieee80211_hdrlen(__le16 fc)
827 {
828 unsigned int size;
829
830 if (ieee80211_is_ctl(fc)) {
831 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
832 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
833 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
834 return sizeof(struct ieee80211_frame_ack);
835 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
836 return sizeof(struct ieee80211_frame_bar);
837 }
838 return (sizeof(struct ieee80211_frame_min));
839 }
840
841 size = sizeof(struct ieee80211_frame);
842 if (ieee80211_is_data(fc)) {
843 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
844 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
845 size += IEEE80211_ADDR_LEN;
846 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
847 IEEE80211_FC0_TYPE_MASK)) ==
848 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
849 IEEE80211_FC0_TYPE_DATA))
850 size += sizeof(uint16_t);
851 }
852
853 if (ieee80211_is_mgmt(fc)) {
854 #ifdef __notyet__
855 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
856 __func__, fc, size);
857 #endif
858 ;
859 }
860
861 return (size);
862 }
863
864 static inline bool
ieee80211_is_trigger(__le16 fc)865 ieee80211_is_trigger(__le16 fc)
866 {
867 __le16 v;
868
869 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
870 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
871
872 return (fc == v);
873 }
874
875 static __inline bool
ieee80211_is_action(__le16 fc)876 ieee80211_is_action(__le16 fc)
877 {
878 __le16 v;
879
880 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
881 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
882
883 return (fc == v);
884 }
885
886 static __inline bool
ieee80211_is_probe_resp(__le16 fc)887 ieee80211_is_probe_resp(__le16 fc)
888 {
889 __le16 v;
890
891 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
892 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
893
894 return (fc == v);
895 }
896
897 static __inline bool
ieee80211_is_auth(__le16 fc)898 ieee80211_is_auth(__le16 fc)
899 {
900 __le16 v;
901
902 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
903 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
904
905 return (fc == v);
906 }
907
908 static __inline bool
ieee80211_is_assoc_req(__le16 fc)909 ieee80211_is_assoc_req(__le16 fc)
910 {
911 __le16 v;
912
913 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
914 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
915
916 return (fc == v);
917 }
918
919 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)920 ieee80211_is_assoc_resp(__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_RESP | IEEE80211_FC0_TYPE_MGT);
926
927 return (fc == v);
928 }
929
930 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)931 ieee80211_is_reassoc_req(__le16 fc)
932 {
933 __le16 v;
934
935 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
936 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
937
938 return (fc == v);
939 }
940
941 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)942 ieee80211_is_reassoc_resp(__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_RESP | IEEE80211_FC0_TYPE_MGT);
948
949 return (fc == v);
950 }
951
952 static __inline bool
ieee80211_is_disassoc(__le16 fc)953 ieee80211_is_disassoc(__le16 fc)
954 {
955 __le16 v;
956
957 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
958 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
959
960 return (fc == v);
961 }
962
963 static __inline bool
ieee80211_is_data_present(__le16 fc)964 ieee80211_is_data_present(__le16 fc)
965 {
966 __le16 v;
967
968 /* If it is a data frame and NODATA is not present. */
969 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
970 v = htole16(IEEE80211_FC0_TYPE_DATA);
971
972 return (fc == v);
973 }
974
975 static __inline bool
ieee80211_is_deauth(__le16 fc)976 ieee80211_is_deauth(__le16 fc)
977 {
978 __le16 v;
979
980 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
981 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
982
983 return (fc == v);
984 }
985
986 static __inline bool
ieee80211_is_beacon(__le16 fc)987 ieee80211_is_beacon(__le16 fc)
988 {
989 __le16 v;
990
991 /*
992 * For as much as I get it this comes in LE and unlike FreeBSD
993 * where we get the entire frame header and u8[], here we get the
994 * 9.2.4.1 Frame Control field only. Mask and compare.
995 */
996 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
997 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
998
999 return (fc == v);
1000 }
1001
1002
1003 static __inline bool
ieee80211_is_probe_req(__le16 fc)1004 ieee80211_is_probe_req(__le16 fc)
1005 {
1006 __le16 v;
1007
1008 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1009 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1010
1011 return (fc == v);
1012 }
1013
1014 static __inline bool
ieee80211_has_protected(__le16 fc)1015 ieee80211_has_protected(__le16 fc)
1016 {
1017
1018 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1019 }
1020
1021 static __inline bool
ieee80211_is_back_req(__le16 fc)1022 ieee80211_is_back_req(__le16 fc)
1023 {
1024 __le16 v;
1025
1026 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1027 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
1028
1029 return (fc == v);
1030 }
1031
1032 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1033 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1034 {
1035 struct ieee80211_mgmt *mgmt;
1036 __le16 fc;
1037
1038 mgmt = (struct ieee80211_mgmt *)skb->data;
1039 fc = mgmt->frame_control;
1040
1041 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1042 /* XXX we do not care about IBSS yet. */
1043
1044 if (!ieee80211_is_mgmt(fc))
1045 return (false);
1046 if (ieee80211_is_action(fc)) /* XXX FTM? */
1047 return (true); /* XXX false? */
1048 if (ieee80211_is_disassoc(fc))
1049 return (true);
1050 if (ieee80211_is_deauth(fc))
1051 return (true);
1052
1053 TODO();
1054
1055 return (false);
1056 }
1057
1058 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1059 ieee80211_is_nullfunc(__le16 fc)
1060 {
1061 __le16 v;
1062
1063 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1064 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1065
1066 return (fc == v);
1067 }
1068
1069 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1070 ieee80211_is_qos_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_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1076
1077 return (fc == v);
1078 }
1079
1080 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1081 ieee80211_is_any_nullfunc(__le16 fc)
1082 {
1083
1084 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1085 }
1086
1087 static inline bool
ieee80211_is_pspoll(__le16 fc)1088 ieee80211_is_pspoll(__le16 fc)
1089 {
1090 __le16 v;
1091
1092 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1093 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1094
1095 return (fc == v);
1096 }
1097
1098 static __inline bool
ieee80211_has_a4(__le16 fc)1099 ieee80211_has_a4(__le16 fc)
1100 {
1101 __le16 v;
1102
1103 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1104 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1105
1106 return (fc == v);
1107 }
1108
1109 static __inline bool
ieee80211_has_order(__le16 fc)1110 ieee80211_has_order(__le16 fc)
1111 {
1112
1113 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1114 }
1115
1116 static __inline bool
ieee80211_has_retry(__le16 fc)1117 ieee80211_has_retry(__le16 fc)
1118 {
1119
1120 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1121 }
1122
1123
1124 static __inline bool
ieee80211_has_fromds(__le16 fc)1125 ieee80211_has_fromds(__le16 fc)
1126 {
1127
1128 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1129 }
1130
1131 static __inline bool
ieee80211_has_tods(__le16 fc)1132 ieee80211_has_tods(__le16 fc)
1133 {
1134
1135 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1136 }
1137
1138 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1139 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1140 {
1141
1142 if (ieee80211_has_a4(hdr->frame_control))
1143 return (hdr->addr4);
1144 if (ieee80211_has_fromds(hdr->frame_control))
1145 return (hdr->addr3);
1146 return (hdr->addr2);
1147 }
1148
1149 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1150 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1151 {
1152
1153 if (ieee80211_has_tods(hdr->frame_control))
1154 return (hdr->addr3);
1155 return (hdr->addr1);
1156 }
1157
1158 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1159 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1160 {
1161 TODO();
1162 return (false);
1163 }
1164
1165 static __inline bool
ieee80211_is_first_frag(__le16 fc)1166 ieee80211_is_first_frag(__le16 fc)
1167 {
1168 TODO();
1169 return (false);
1170 }
1171
1172 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1173 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1174 {
1175 TODO();
1176 return (false);
1177 }
1178
1179 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1180 ieee80211_is_ftm(struct sk_buff *skb)
1181 {
1182 TODO();
1183 return (false);
1184 }
1185
1186 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1187 ieee80211_is_timing_measurement(struct sk_buff *skb)
1188 {
1189 TODO();
1190 return (false);
1191 }
1192
1193 static __inline bool
ieee80211_has_pm(__le16 fc)1194 ieee80211_has_pm(__le16 fc)
1195 {
1196 TODO();
1197 return (false);
1198 }
1199
1200 static __inline bool
ieee80211_has_morefrags(__le16 fc)1201 ieee80211_has_morefrags(__le16 fc)
1202 {
1203
1204 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1205 return (fc != 0);
1206 }
1207
1208 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1209 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1210 {
1211 if (ieee80211_has_a4(hdr->frame_control))
1212 return (u8 *)hdr + 30;
1213 else
1214 return (u8 *)hdr + 24;
1215 }
1216
1217
1218 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1219