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/bitfield.h>
39 #include <linux/if_ether.h>
40
41 /* linux_80211.c */
42 extern int linuxkpi_debug_80211;
43 #ifndef D80211_TODO
44 #define D80211_TODO 0x1
45 #endif
46 #define TODO(fmt, ...) if (linuxkpi_debug_80211 & D80211_TODO) \
47 printf("%s:%d: XXX LKPI80211 TODO " fmt "\n", __func__, __LINE__, ##__VA_ARGS__)
48
49
50 /* 9.4.2.55 Management MIC element (CMAC-256, GMAC-128, and GMAC-256). */
51 struct ieee80211_mmie_16 {
52 uint8_t element_id;
53 uint8_t length;
54 uint16_t key_id;
55 uint8_t ipn[6];
56 uint8_t mic[16];
57 };
58
59 #define IEEE80211_CCMP_HDR_LEN 8 /* 802.11i .. net80211 comment */
60 #define IEEE80211_CCMP_PN_LEN 6
61 #define IEEE80211_CCMP_MIC_LEN 8 /* || 16 */
62 #define IEEE80211_CCMP_256_HDR_LEN 8
63 #define IEEE80211_CCMP_256_MIC_LEN 16
64 #define IEEE80211_GCMP_HDR_LEN 8
65 #define IEEE80211_GCMP_MIC_LEN 16
66 #define IEEE80211_GCMP_PN_LEN 6
67 #define IEEE80211_GMAC_PN_LEN 6
68 #define IEEE80211_CMAC_PN_LEN 6
69
70 #define IEEE80211_MAX_PN_LEN 16
71
72 #define IEEE80211_INVAL_HW_QUEUE ((uint8_t)-1)
73
74 #define IEEE80211_MAX_AMPDU_BUF_HT IEEE80211_AGGR_BAWMAX
75 #define IEEE80211_MAX_AMPDU_BUF_HE 256
76 #define IEEE80211_MAX_AMPDU_BUF_EHT 1024
77
78 #define IEEE80211_MAX_FRAME_LEN 2352
79 #define IEEE80211_MAX_DATA_LEN (2300 + IEEE80211_CRC_LEN)
80
81 #define IEEE80211_MAX_MPDU_LEN_HT_BA 4095 /* 9.3.2.1 Format of Data frames; non-VHT non-DMG STA */
82 #define IEEE80211_MAX_MPDU_LEN_HT_3839 3839
83 #define IEEE80211_MAX_MPDU_LEN_HT_7935 7935
84 #define IEEE80211_MAX_MPDU_LEN_VHT_3895 3895
85 #define IEEE80211_MAX_MPDU_LEN_VHT_7991 7991
86 #define IEEE80211_MAX_MPDU_LEN_VHT_11454 11454
87
88 #define IEEE80211_MAX_RTS_THRESHOLD 2346 /* net80211::IEEE80211_RTS_MAX */
89
90 #define IEEE80211_MIN_ACTION_SIZE 23 /* ? */
91
92 /* Wi-Fi Peer-to-Peer (P2P) Technical Specification */
93 #define IEEE80211_P2P_OPPPS_CTWINDOW_MASK 0x7f
94 #define IEEE80211_P2P_OPPPS_ENABLE_BIT BIT(7)
95
96 /* 802.11-2016, 9.2.4.5.1, Table 9-6 QoS Control Field */
97 #define IEEE80211_QOS_CTL_TAG1D_MASK 0x0007
98 #define IEEE80211_QOS_CTL_TID_MASK IEEE80211_QOS_TID
99 #define IEEE80211_QOS_CTL_EOSP 0x0010
100 #define IEEE80211_QOS_CTL_A_MSDU_PRESENT 0x0080
101 #define IEEE80211_QOS_CTL_ACK_POLICY_MASK 0x0060
102 #define IEEE80211_QOS_CTL_ACK_POLICY_NOACK 0x0020
103 #define IEEE80211_QOS_CTL_MESH_CONTROL_PRESENT 0x0100
104
105 enum ieee80211_rate_flags {
106 IEEE80211_RATE_SHORT_PREAMBLE = BIT(0),
107 };
108
109 enum ieee80211_rate_control_changed_flags {
110 IEEE80211_RC_BW_CHANGED = BIT(0),
111 IEEE80211_RC_NSS_CHANGED = BIT(1),
112 IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2),
113 IEEE80211_RC_SMPS_CHANGED = BIT(3),
114 };
115
116 #define IEEE80211_SCTL_FRAG IEEE80211_SEQ_FRAG_MASK
117 #define IEEE80211_SCTL_SEQ IEEE80211_SEQ_SEQ_MASK
118
119 #define IEEE80211_TKIP_ICV_LEN 4
120 #define IEEE80211_TKIP_IV_LEN 8 /* WEP + KID + EXT */
121
122 /* 802.11-2016, 9.4.2.158.3 Supported VHT-MCS and NSS Set field. */
123 #define IEEE80211_VHT_EXT_NSS_BW_CAPABLE (1 << 13) /* part of tx_highest */
124
125 /*
126 * 802.11-2020, 9.4.2.157.2 VHT Capabilities Information field,
127 * Table 9-271-Subfields of the VHT Capabilities Information field (continued).
128 */
129 enum ieee80211_vht_max_ampdu_len_exp {
130 IEEE80211_VHT_MAX_AMPDU_8K = 0,
131 IEEE80211_VHT_MAX_AMPDU_16K = 1,
132 IEEE80211_VHT_MAX_AMPDU_32K = 2,
133 IEEE80211_VHT_MAX_AMPDU_64K = 3,
134 IEEE80211_VHT_MAX_AMPDU_128K = 4,
135 IEEE80211_VHT_MAX_AMPDU_256K = 5,
136 IEEE80211_VHT_MAX_AMPDU_512K = 6,
137 IEEE80211_VHT_MAX_AMPDU_1024K = 7,
138 };
139
140 #define IEEE80211_WEP_IV_LEN 3 /* net80211: IEEE80211_WEP_IVLEN */
141 #define IEEE80211_WEP_ICV_LEN 4
142
143 #define WLAN_AUTH_OPEN __LINE__ /* TODO FIXME brcmfmac */
144 #define WLAN_CAPABILITY_IBSS __LINE__ /* TODO FIXME no longer used? */
145 #define WLAN_CAPABILITY_SHORT_PREAMBLE __LINE__ /* TODO FIXME brcmfmac */
146 #define WLAN_CAPABILITY_SHORT_SLOT_TIME __LINE__ /* TODO FIXME brcmfmac */
147
148 enum wlan_ht_cap_sm_ps {
149 WLAN_HT_CAP_SM_PS_STATIC = 0,
150 WLAN_HT_CAP_SM_PS_DYNAMIC = 1,
151 WLAN_HT_CAP_SM_PS_INVALID = 2,
152 WLAN_HT_CAP_SM_PS_DISABLED = 3
153 };
154
155 #define WLAN_MAX_KEY_LEN 32
156 #define WLAN_PMKID_LEN 16
157 #define WLAN_PMK_LEN_SUITE_B_192 48
158
159 enum ieee80211_key_len {
160 WLAN_KEY_LEN_WEP40 = 5,
161 WLAN_KEY_LEN_WEP104 = 13,
162 WLAN_KEY_LEN_TKIP = 32,
163 WLAN_KEY_LEN_CCMP = 16,
164 WLAN_KEY_LEN_CCMP_256 = 32,
165 WLAN_KEY_LEN_GCMP = 16,
166 WLAN_KEY_LEN_AES_CMAC = 16,
167 WLAN_KEY_LEN_GCMP_256 = 32,
168 WLAN_KEY_LEN_BIP_CMAC_256 = 32,
169 WLAN_KEY_LEN_BIP_GMAC_128 = 16,
170 WLAN_KEY_LEN_BIP_GMAC_256 = 32,
171 };
172
173 /* 802.11-2020, 9.4.2.55.3, Table 9-185 Subfields of the A-MPDU Parameters field */
174 enum ieee80211_min_mpdu_start_spacing {
175 IEEE80211_HT_MPDU_DENSITY_NONE = 0,
176 #if 0
177 IEEE80211_HT_MPDU_DENSITY_XXX = 1, /* 1/4 us */
178 #endif
179 IEEE80211_HT_MPDU_DENSITY_0_5 = 2, /* 1/2 us */
180 IEEE80211_HT_MPDU_DENSITY_1 = 3, /* 1 us */
181 IEEE80211_HT_MPDU_DENSITY_2 = 4, /* 2 us */
182 IEEE80211_HT_MPDU_DENSITY_4 = 5, /* 4us */
183 IEEE80211_HT_MPDU_DENSITY_8 = 6, /* 8us */
184 IEEE80211_HT_MPDU_DENSITY_16 = 7, /* 16us */
185 };
186
187 /* 9.4.2.57, Table 9-168, HT Operation element fields and subfields */
188 #define IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT 0x0080 /* B24.. */
189
190 #define IEEE80211_FCTL_FTYPE IEEE80211_FC0_TYPE_MASK
191 #define IEEE80211_FCTL_STYPE IEEE80211_FC0_SUBTYPE_MASK
192 #define IEEE80211_FCTL_ORDER (IEEE80211_FC1_ORDER << 8)
193 #define IEEE80211_FCTL_PROTECTED (IEEE80211_FC1_PROTECTED << 8)
194 #define IEEE80211_FCTL_FROMDS (IEEE80211_FC1_DIR_FROMDS << 8)
195 #define IEEE80211_FCTL_TODS (IEEE80211_FC1_DIR_TODS << 8)
196 #define IEEE80211_FCTL_MOREFRAGS (IEEE80211_FC1_MORE_FRAG << 8)
197 #define IEEE80211_FCTL_PM (IEEE80211_FC1_PWR_MGT << 8)
198
199 #define IEEE80211_FTYPE_MGMT IEEE80211_FC0_TYPE_MGT
200 #define IEEE80211_FTYPE_CTL IEEE80211_FC0_TYPE_CTL
201 #define IEEE80211_FTYPE_DATA IEEE80211_FC0_TYPE_DATA
202
203 #define IEEE80211_STYPE_ASSOC_REQ IEEE80211_FC0_SUBTYPE_ASSOC_REQ
204 #define IEEE80211_STYPE_REASSOC_REQ IEEE80211_FC0_SUBTYPE_REASSOC_REQ
205 #define IEEE80211_STYPE_PROBE_REQ IEEE80211_FC0_SUBTYPE_PROBE_REQ
206 #define IEEE80211_STYPE_DISASSOC IEEE80211_FC0_SUBTYPE_DISASSOC
207 #define IEEE80211_STYPE_AUTH IEEE80211_FC0_SUBTYPE_AUTH
208 #define IEEE80211_STYPE_DEAUTH IEEE80211_FC0_SUBTYPE_DEAUTH
209 #define IEEE80211_STYPE_CTS IEEE80211_FC0_SUBTYPE_CTS
210 #define IEEE80211_STYPE_RTS IEEE80211_FC0_SUBTYPE_RTS
211 #define IEEE80211_STYPE_ACTION IEEE80211_FC0_SUBTYPE_ACTION
212 #define IEEE80211_STYPE_DATA IEEE80211_FC0_SUBTYPE_DATA
213 #define IEEE80211_STYPE_QOS_DATA IEEE80211_FC0_SUBTYPE_QOS_DATA
214 #define IEEE80211_STYPE_QOS_NULLFUNC IEEE80211_FC0_SUBTYPE_QOS_NULL
215 #define IEEE80211_STYPE_QOS_CFACK 0xd0 /* XXX-BZ reserved? */
216
217 #define IEEE80211_NUM_ACS 4 /* net8021::WME_NUM_AC */
218
219 #define IEEE80211_MAX_SSID_LEN 32 /* 9.4.2.2 SSID element, net80211: IEEE80211_NWID_LEN */
220
221
222 /* Figure 9-27, BAR Control field */
223 #define IEEE80211_BAR_CTRL_TID_INFO_MASK 0xf000
224 #define IEEE80211_BAR_CTRL_TID_INFO_SHIFT 12
225
226 #define IEEE80211_PPE_THRES_INFO_PPET_SIZE 1 /* TODO FIXME ax? */
227 #define IEEE80211_PPE_THRES_NSS_MASK 2 /* TODO FIXME ax? */
228 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS 3 /* TODO FIXME ax? */
229 #define IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK 8 /* TODO FIXME ax? */
230 #define IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE 16 /* TODO FIXME ax? */
231
232 /* 802.11-2012, Table 8-130-HT Operation element fields and subfields, HT Protection */
233 #define IEEE80211_HT_OP_MODE_PROTECTION IEEE80211_HTINFO_OPMODE /* Mask. */
234 #define IEEE80211_HT_OP_MODE_PROTECTION_NONE IEEE80211_HTINFO_OPMODE_PURE /* No protection */
235 #define IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER IEEE80211_HTINFO_OPMODE_PROTOPT /* Nonmember protection */
236 #define IEEE80211_HT_OP_MODE_PROTECTION_20MHZ IEEE80211_HTINFO_OPMODE_HT20PR /* 20 MHz protection */
237 #define IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED IEEE80211_HTINFO_OPMODE_MIXED /* Non-HT mixed */
238
239
240 /* 9.6.13.1, Table 9-342 TDLS Action field values. */
241 enum ieee80211_tdls_action_code {
242 WLAN_TDLS_SETUP_REQUEST = 0,
243 WLAN_TDLS_SETUP_RESPONSE = 1,
244 WLAN_TDLS_SETUP_CONFIRM = 2,
245 WLAN_TDLS_TEARDOWN = 3,
246 WLAN_TDLS_PEER_TRAFFIC_INDICATION = 4,
247 WLAN_TDLS_CHANNEL_SWITCH_REQUEST = 5,
248 WLAN_TDLS_CHANNEL_SWITCH_RESPONSE = 6,
249 WLAN_TDLS_PEER_PSM_REQUEST = 7,
250 WLAN_TDLS_PEER_PSM_RESPONSE = 8,
251 WLAN_TDLS_PEER_TRAFFIC_RESPONSE = 9,
252 WLAN_TDLS_DISCOVERY_REQUEST = 10,
253 /* 11-255 reserved */
254 };
255
256 /* 802.11-2020 9.4.2.26, Table 9-153. Extended Capabilities field. */
257 /* This is split up into octets CAPA1 = octet 1, ... */
258 #define WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING BIT(2 % 8)
259 #define WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT BIT(22 % 8)
260 #define WLAN_EXT_CAPA3_TIMING_MEASUREMENT_SUPPORT BIT(23 % 8)
261 #define WLAN_EXT_CAPA8_OPMODE_NOTIF BIT(62 % 8)
262 #define WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB BIT(63 % 8)
263 #define WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB BIT(64 % 8)
264 #define WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT BIT(77 % 8)
265 #define WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT BIT(78 % 8)
266 #define WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT BIT(79 % 8)
267
268 #define WLAN_EXT_CAPA11_EMA_SUPPORT 0x00 /* XXX TODO FIXME */
269
270
271 /* iwlwifi/mvm/utils:: for (ac = IEEE80211_AC_VO; ac <= IEEE80211_AC_VI; ac++) */
272 /* Would be so much easier if we'd define constants to the same. */
273 enum ieee80211_ac_numbers {
274 IEEE80211_AC_VO = 0, /* net80211::WME_AC_VO */
275 IEEE80211_AC_VI = 1, /* net80211::WME_AC_VI */
276 IEEE80211_AC_BE = 2, /* net80211::WME_AC_BE */
277 IEEE80211_AC_BK = 3, /* net80211::WME_AC_BK */
278 };
279
280 #define IEEE80211_MAX_QUEUES 16 /* Assume IEEE80211_NUM_TIDS for the moment. */
281
282 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 1
283 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_VI 2
284 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BK 4
285 #define IEEE80211_WMM_IE_STA_QOSINFO_AC_BE 8
286 #define IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 0xf
287
288
289 /* Define the LinuxKPI names directly to the net80211 ones. */
290 #define IEEE80211_HT_CAP_LDPC_CODING IEEE80211_HTCAP_LDPC
291 #define IEEE80211_HT_CAP_SUP_WIDTH_20_40 IEEE80211_HTCAP_CHWIDTH40
292 #define IEEE80211_HT_CAP_SM_PS IEEE80211_HTCAP_SMPS
293 #define IEEE80211_HT_CAP_SM_PS_SHIFT 2
294 #define IEEE80211_HT_CAP_GRN_FLD IEEE80211_HTCAP_GREENFIELD
295 #define IEEE80211_HT_CAP_SGI_20 IEEE80211_HTCAP_SHORTGI20
296 #define IEEE80211_HT_CAP_SGI_40 IEEE80211_HTCAP_SHORTGI40
297 #define IEEE80211_HT_CAP_TX_STBC IEEE80211_HTCAP_TXSTBC
298 #define IEEE80211_HT_CAP_RX_STBC IEEE80211_HTCAP_RXSTBC
299 #define IEEE80211_HT_CAP_RX_STBC_SHIFT IEEE80211_HTCAP_RXSTBC_S
300 #define IEEE80211_HT_CAP_MAX_AMSDU IEEE80211_HTCAP_MAXAMSDU
301 #define IEEE80211_HT_CAP_DSSSCCK40 IEEE80211_HTCAP_DSSSCCK40
302 #define IEEE80211_HT_CAP_LSIG_TXOP_PROT IEEE80211_HTCAP_LSIGTXOPPROT
303
304 #define IEEE80211_HT_MCS_TX_DEFINED 0x0001
305 #define IEEE80211_HT_MCS_TX_RX_DIFF 0x0002
306 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT 2
307 #define IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK 0x0c
308 #define IEEE80211_HT_MCS_RX_HIGHEST_MASK 0x3ff
309 #define IEEE80211_HT_MCS_MASK_LEN 10
310
311 #define IEEE80211_MLD_MAX_NUM_LINKS 15
312 #define IEEE80211_MLD_CAP_OP_MAX_SIMUL_LINKS 0xf
313 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP 0x0060
314 #define IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP_SAME 1
315 #define IEEE80211_MLD_CAP_OP_LINK_RECONF_SUPPORT 0x2000
316
317 struct ieee80211_mcs_info {
318 uint8_t rx_mask[IEEE80211_HT_MCS_MASK_LEN];
319 uint16_t rx_highest;
320 uint8_t tx_params;
321 uint8_t __reserved[3];
322 } __packed;
323
324 /* 802.11-2020, 9.4.2.55.1 HT Capabilities element structure */
325 struct ieee80211_ht_cap {
326 uint16_t cap_info;
327 uint8_t ampdu_params_info;
328 struct ieee80211_mcs_info mcs;
329 uint16_t extended_ht_cap_info;
330 uint32_t tx_BF_cap_info;
331 uint8_t antenna_selection_info;
332 } __packed;
333
334 #define IEEE80211_HT_MAX_AMPDU_FACTOR 13
335 #define IEEE80211_HE_HT_MAX_AMPDU_FACTOR 16
336 #define IEEE80211_HE_VHT_MAX_AMPDU_FACTOR 20
337 #define IEEE80211_HE_6GHZ_MAX_AMPDU_FACTOR 13
338
339 enum ieee80211_ht_max_ampdu_len {
340 IEEE80211_HT_MAX_AMPDU_64K
341 };
342
343 enum ieee80211_ampdu_mlme_action {
344 IEEE80211_AMPDU_RX_START,
345 IEEE80211_AMPDU_RX_STOP,
346 IEEE80211_AMPDU_TX_OPERATIONAL,
347 IEEE80211_AMPDU_TX_START,
348 IEEE80211_AMPDU_TX_STOP_CONT,
349 IEEE80211_AMPDU_TX_STOP_FLUSH,
350 IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
351 };
352
353 #define IEEE80211_AMPDU_TX_START_IMMEDIATE 1
354 #define IEEE80211_AMPDU_TX_START_DELAY_ADDBA 2
355
356 enum ieee80211_chanctx_switch_mode {
357 CHANCTX_SWMODE_REASSIGN_VIF,
358 CHANCTX_SWMODE_SWAP_CONTEXTS,
359 };
360
361 enum ieee80211_chanctx_change_flags {
362 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH = BIT(0),
363 IEEE80211_CHANCTX_CHANGE_RADAR = BIT(1),
364 IEEE80211_CHANCTX_CHANGE_RX_CHAINS = BIT(2),
365 IEEE80211_CHANCTX_CHANGE_WIDTH = BIT(3),
366 IEEE80211_CHANCTX_CHANGE_CHANNEL = BIT(4),
367 IEEE80211_CHANCTX_CHANGE_PUNCTURING = BIT(5),
368 IEEE80211_CHANCTX_CHANGE_MIN_DEF = BIT(6),
369 IEEE80211_CHANCTX_CHANGE_AP = BIT(7),
370 };
371
372 enum ieee80211_frame_release_type {
373 IEEE80211_FRAME_RELEASE_PSPOLL = 1,
374 IEEE80211_FRAME_RELEASE_UAPSD = 2,
375 };
376
377 enum ieee80211_p2p_attr_ids {
378 IEEE80211_P2P_ATTR_DEVICE_ID,
379 IEEE80211_P2P_ATTR_DEVICE_INFO,
380 IEEE80211_P2P_ATTR_GROUP_ID,
381 IEEE80211_P2P_ATTR_LISTEN_CHANNEL,
382 IEEE80211_P2P_ATTR_ABSENCE_NOTICE,
383 };
384
385 enum ieee80211_reconfig_type {
386 IEEE80211_RECONFIG_TYPE_RESTART,
387 IEEE80211_RECONFIG_TYPE_SUSPEND,
388 };
389
390 enum ieee80211_roc_type {
391 IEEE80211_ROC_TYPE_MGMT_TX,
392 IEEE80211_ROC_TYPE_NORMAL,
393 };
394
395 enum ieee80211_smps_mode {
396 IEEE80211_SMPS_OFF,
397 IEEE80211_SMPS_STATIC,
398 IEEE80211_SMPS_DYNAMIC,
399 IEEE80211_SMPS_AUTOMATIC,
400 IEEE80211_SMPS_NUM_MODES,
401 };
402
403 /* net80211::IEEE80211_S_* different but represents the state machine. */
404 /* Note: order here is important! */
405 enum ieee80211_sta_state {
406 IEEE80211_STA_NOTEXIST = 0,
407 IEEE80211_STA_NONE = 1,
408 IEEE80211_STA_AUTH = 2,
409 IEEE80211_STA_ASSOC = 3,
410 IEEE80211_STA_AUTHORIZED = 4, /* 802.1x */
411 };
412
413 enum ieee80211_sta_rx_bandwidth {
414 IEEE80211_STA_RX_BW_20 = 0,
415 IEEE80211_STA_RX_BW_40,
416 IEEE80211_STA_RX_BW_80,
417 IEEE80211_STA_RX_BW_160,
418 IEEE80211_STA_RX_BW_320,
419 };
420
421 enum ieee80211_tx_info_flags {
422 /* XXX TODO .. right shift numbers - not sure where that came from? */
423 IEEE80211_TX_CTL_AMPDU = BIT(0),
424 IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1),
425 IEEE80211_TX_CTL_NO_ACK = BIT(2),
426 IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(3),
427 IEEE80211_TX_CTL_TX_OFFCHAN = BIT(4),
428 IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(5),
429 IEEE80211_TX_STATUS_EOSP = BIT(6),
430 IEEE80211_TX_STAT_ACK = BIT(7),
431 IEEE80211_TX_STAT_AMPDU = BIT(8),
432 IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(9),
433 IEEE80211_TX_STAT_TX_FILTERED = BIT(10),
434 IEEE80211_TX_STAT_NOACK_TRANSMITTED = BIT(11),
435 IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(12),
436 IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(13),
437 IEEE80211_TX_CTL_NO_CCK_RATE = BIT(14),
438 IEEE80211_TX_CTL_INJECTED = BIT(15),
439 IEEE80211_TX_CTL_HW_80211_ENCAP = BIT(16),
440 IEEE80211_TX_CTL_USE_MINRATE = BIT(17),
441 IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(18),
442 IEEE80211_TX_CTL_LDPC = BIT(19),
443 IEEE80211_TX_CTL_STBC = BIT(20),
444 } __packed;
445
446 enum ieee80211_tx_status_flags {
447 IEEE80211_TX_STATUS_ACK_SIGNAL_VALID = BIT(0),
448 };
449
450 enum ieee80211_tx_control_flags {
451 /* XXX TODO .. right shift numbers */
452 IEEE80211_TX_CTRL_PORT_CTRL_PROTO = BIT(0),
453 IEEE80211_TX_CTRL_PS_RESPONSE = BIT(1),
454 IEEE80211_TX_CTRL_RATE_INJECT = BIT(2),
455 IEEE80211_TX_CTRL_DONT_USE_RATE_MASK = BIT(3),
456 IEEE80211_TX_CTRL_MLO_LINK = 0xF0000000, /* This is IEEE80211_LINK_UNSPECIFIED on the high bits. */
457 };
458
459 enum ieee80211_tx_rate_flags {
460 /* XXX TODO .. right shift numbers */
461 IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(0),
462 IEEE80211_TX_RC_80_MHZ_WIDTH = BIT(1),
463 IEEE80211_TX_RC_160_MHZ_WIDTH = BIT(2),
464 IEEE80211_TX_RC_GREEN_FIELD = BIT(3),
465 IEEE80211_TX_RC_MCS = BIT(4),
466 IEEE80211_TX_RC_SHORT_GI = BIT(5),
467 IEEE80211_TX_RC_VHT_MCS = BIT(6),
468 IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(7),
469 };
470
471 #define IEEE80211_RNR_TBTT_PARAMS_PSD_RESERVED -128
472
473 #define IEEE80211_HT_CTL_LEN 4
474
475 struct ieee80211_hdr { /* net80211::ieee80211_frame_addr4 */
476 __le16 frame_control;
477 __le16 duration_id;
478 uint8_t addr1[ETH_ALEN];
479 uint8_t addr2[ETH_ALEN];
480 uint8_t addr3[ETH_ALEN];
481 __le16 seq_ctrl;
482 uint8_t addr4[ETH_ALEN];
483 };
484
485 struct ieee80211_hdr_3addr { /* net80211::ieee80211_frame */
486 __le16 frame_control;
487 __le16 duration_id;
488 uint8_t addr1[ETH_ALEN];
489 uint8_t addr2[ETH_ALEN];
490 uint8_t addr3[ETH_ALEN];
491 __le16 seq_ctrl;
492 };
493
494 struct ieee80211_qos_hdr { /* net80211:ieee80211_qosframe */
495 __le16 frame_control;
496 __le16 duration_id;
497 uint8_t addr1[ETH_ALEN];
498 uint8_t addr2[ETH_ALEN];
499 uint8_t addr3[ETH_ALEN];
500 __le16 seq_ctrl;
501 __le16 qos_ctrl;
502 };
503
504 struct ieee80211_vendor_ie {
505 };
506
507 /* 802.11-2020, Table 9-359-Block Ack Action field values */
508 enum ieee80211_back {
509 WLAN_ACTION_ADDBA_REQ = 0,
510 };
511
512 enum ieee80211_sa_query {
513 WLAN_ACTION_SA_QUERY_RESPONSE = 1,
514 };
515
516 /* 802.11-2020, Table 9-51-Category values */
517 enum ieee80211_category {
518 WLAN_CATEGORY_BACK = 3,
519 WLAN_CATEGORY_SA_QUERY = 8, /* net80211::IEEE80211_ACTION_CAT_SA_QUERY */
520 };
521
522 /* 80211-2020 9.3.3.2 Format of Management frames */
523 struct ieee80211_mgmt {
524 __le16 frame_control;
525 __le16 duration_id;
526 uint8_t da[ETH_ALEN];
527 uint8_t sa[ETH_ALEN];
528 uint8_t bssid[ETH_ALEN];
529 __le16 seq_ctrl;
530 union {
531 /* 9.3.3.3 Beacon frame format */
532 struct {
533 uint64_t timestamp;
534 uint16_t beacon_int;
535 uint16_t capab_info;
536 uint8_t variable[0];
537 } __packed beacon;
538 /* 9.3.3.5 Association Request frame format */
539 struct {
540 uint16_t capab_info;
541 uint16_t listen_interval;
542 uint8_t variable[0];
543 } __packed assoc_req;
544 /* 9.3.3.10 Probe Request frame format */
545 struct {
546 uint8_t variable[0];
547 } __packed probe_req;
548 /* 9.3.3.11 Probe Response frame format */
549 struct {
550 uint64_t timestamp;
551 uint16_t beacon_int;
552 uint16_t capab_info;
553 uint8_t variable[0];
554 } __packed probe_resp;
555 /* 9.3.3.14 Action frame format */
556 struct {
557 /* 9.4.1.11 Action field */
558 uint8_t category;
559 /* 9.6.8 Public Action details */
560 union {
561 /* 9.6.2.5 TPC Report frame format */
562 struct {
563 uint8_t spec_mgmt;
564 uint8_t dialog_token;
565 /* uint32_t tpc_rep_elem:: */
566 uint8_t tpc_elem_id;
567 uint8_t tpc_elem_length;
568 uint8_t tpc_elem_tx_power;
569 uint8_t tpc_elem_link_margin;
570 } __packed tpc_report;
571 /* 9.6.8.33 Fine Timing Measurement frame format */
572 struct {
573 uint8_t dialog_token;
574 uint8_t follow_up;
575 uint8_t tod[6];
576 uint8_t toa[6];
577 uint16_t tod_error;
578 uint16_t toa_error;
579 uint8_t variable[0];
580 } __packed ftm;
581 /* 802.11-2016, 9.6.5.2 ADDBA Request frame format */
582 struct {
583 uint8_t action_code;
584 uint8_t dialog_token;
585 uint16_t capab;
586 uint16_t timeout;
587 uint16_t start_seq_num;
588 /* Optional follows... */
589 uint8_t variable[0];
590 } __packed addba_req;
591 /* XXX */
592 struct {
593 uint8_t dialog_token;
594 } __packed wnm_timing_msr;
595 } u;
596 } __packed action;
597 DECLARE_FLEX_ARRAY(uint8_t, body);
598 } u;
599 } __packed __aligned(2);
600
601 struct ieee80211_cts { /* net80211::ieee80211_frame_cts */
602 __le16 frame_control;
603 __le16 duration;
604 uint8_t ra[ETH_ALEN];
605 } __packed;
606
607 struct ieee80211_rts { /* net80211::ieee80211_frame_rts */
608 __le16 frame_control;
609 __le16 duration;
610 uint8_t ra[ETH_ALEN];
611 uint8_t ta[ETH_ALEN];
612 } __packed;
613
614 #define MHZ_TO_KHZ(_f) ((_f) * 1000)
615 #define DBI_TO_MBI(_g) ((_g) * 100)
616 #define MBI_TO_DBI(_x) ((_x) / 100)
617 #define DBM_TO_MBM(_g) ((_g) * 100)
618 #define MBM_TO_DBM(_x) ((_x) / 100)
619
620 #define IEEE80211_SEQ_TO_SN(_seqn) (((_seqn) & IEEE80211_SEQ_SEQ_MASK) >> \
621 IEEE80211_SEQ_SEQ_SHIFT)
622 #define IEEE80211_SN_TO_SEQ(_sn) (((_sn) << IEEE80211_SEQ_SEQ_SHIFT) & \
623 IEEE80211_SEQ_SEQ_MASK)
624
625 /* Time unit (TU) to .. See net80211: IEEE80211_DUR_TU */
626 #define TU_TO_JIFFIES(_tu) (usecs_to_jiffies(_tu) * 1024)
627 #define TU_TO_EXP_TIME(_tu) (jiffies + TU_TO_JIFFIES(_tu))
628
629 /* 9.4.2.21.1, Table 9-82. */
630 #define IEEE80211_SPCT_MSR_RPRT_TYPE_LCI 8
631 #define IEEE80211_SPCT_MSR_RPRT_TYPE_CIVIC 11
632
633 /* 9.4.2.1, Table 9-77. Element IDs. */
634 enum ieee80211_eid {
635 WLAN_EID_SSID = 0,
636 WLAN_EID_SUPP_RATES = 1,
637 WLAN_EID_DS_PARAMS = 3,
638 WLAN_EID_TIM = 5,
639 WLAN_EID_COUNTRY = 7, /* IEEE80211_ELEMID_COUNTRY */
640 WLAN_EID_REQUEST = 10,
641 WLAN_EID_QBSS_LOAD = 11, /* IEEE80211_ELEMID_BSSLOAD */
642 WLAN_EID_CHANNEL_SWITCH = 37,
643 WLAN_EID_MEASURE_REPORT = 39,
644 WLAN_EID_HT_CAPABILITY = 45, /* IEEE80211_ELEMID_HTCAP */
645 WLAN_EID_RSN = 48, /* IEEE80211_ELEMID_RSN */
646 WLAN_EID_EXT_SUPP_RATES = 50,
647 WLAN_EID_EXT_NON_INHERITANCE = 56,
648 WLAN_EID_EXT_CHANSWITCH_ANN = 60,
649 WLAN_EID_MULTIPLE_BSSID = 71, /* IEEE80211_ELEMID_MULTIBSSID */
650 WLAN_EID_MULTI_BSSID_IDX = 85,
651 WLAN_EID_EXT_CAPABILITY = 127,
652 WLAN_EID_VHT_CAPABILITY = 191, /* IEEE80211_ELEMID_VHT_CAP */
653 WLAN_EID_S1G_TWT = 216,
654 WLAN_EID_VENDOR_SPECIFIC = 221, /* IEEE80211_ELEMID_VENDOR */
655 };
656
657 enum ieee80211_eid_ext {
658 WLAN_EID_EXT_HE_CAPABILITY = 35,
659 };
660
661 #define for_each_element(_elem, _data, _len) \
662 for (_elem = (const struct element *)(_data); \
663 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= sizeof(*_elem)) && \
664 (((const uint8_t *)(_data) + (_len) - (const uint8_t *)_elem) >= (sizeof(*_elem) + _elem->datalen)); \
665 _elem = (const struct element *)(_elem->data + _elem->datalen))
666
667 #define for_each_element_id(_elem, _eid, _data, _len) \
668 for_each_element(_elem, _data, _len) \
669 if (_elem->id == (_eid))
670
671 /* 9.4.1.7, Table 9-45. Reason codes. */
672 enum ieee80211_reason_code {
673 /* reserved = 0, */
674 WLAN_REASON_UNSPECIFIED = 1,
675 WLAN_REASON_DEAUTH_LEAVING = 3, /* LEAVING_NETWORK_DEAUTH */
676 WLAN_REASON_TDLS_TEARDOWN_UNREACHABLE = 25,
677 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED = 26,
678 };
679
680 /* 9.4.1.9, Table 9-46. Status codes. */
681 enum ieee80211_status_code {
682 WLAN_STATUS_SUCCESS = 0,
683 WLAN_STATUS_AUTH_TIMEOUT = 16, /* REJECTED_SEQUENCE_TIMEOUT */
684 };
685
686 /* 9.3.1.22 Trigger frame format; 80211ax-2021 */
687 struct ieee80211_trigger {
688 __le16 frame_control;
689 __le16 duration_id;
690 uint8_t ra[ETH_ALEN];
691 uint8_t ta[ETH_ALEN];
692 __le64 common_info; /* 8+ really */
693 uint8_t variable[];
694 };
695
696 /* Table 9-29c-Trigger Type subfield encoding */
697 enum {
698 IEEE80211_TRIGGER_TYPE_BASIC = 0x0,
699 IEEE80211_TRIGGER_TYPE_MU_BAR = 0x2,
700 #if 0
701 /* Not seen yet. */
702 BFRP = 0x1,
703 MU-RTS = 0x3,
704 BSRP = 0x4,
705 GCR MU-BAR = 0x5,
706 BQRP = 0x6,
707 NFRP = 0x7,
708 /* 0x8..0xf reserved */
709 #endif
710 IEEE80211_TRIGGER_TYPE_MASK = 0xf
711 };
712
713 #define IEEE80211_TRIGGER_ULBW_MASK 0xc0000
714 #define IEEE80211_TRIGGER_ULBW_20MHZ 0x0
715 #define IEEE80211_TRIGGER_ULBW_40MHZ 0x1
716 #define IEEE80211_TRIGGER_ULBW_80MHZ 0x2
717 #define IEEE80211_TRIGGER_ULBW_160_80P80MHZ 0x3
718
719 /* 802.11-2020, Figure 9-687-Control field format; 802.11ax-2021 */
720 #define IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST BIT(3)
721 #define IEEE80211_TWT_CONTROL_RX_DISABLED BIT(4)
722 #define IEEE80211_TWT_CONTROL_WAKE_DUR_UNIT BIT(5)
723
724 /* 802.11-2020, Figure 9-688-Request Type field format; 802.11ax-2021 */
725 #define IEEE80211_TWT_REQTYPE_SETUP_CMD (BIT(1) | BIT(2) | BIT(3))
726 #define IEEE80211_TWT_REQTYPE_TRIGGER BIT(4)
727 #define IEEE80211_TWT_REQTYPE_IMPLICIT BIT(5)
728 #define IEEE80211_TWT_REQTYPE_FLOWTYPE BIT(6)
729 #define IEEE80211_TWT_REQTYPE_FLOWID (BIT(7) | BIT(8) | BIT(9))
730 #define IEEE80211_TWT_REQTYPE_WAKE_INT_EXP (BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14))
731 #define IEEE80211_TWT_REQTYPE_PROTECTION BIT(15)
732
733 struct ieee80211_twt_params {
734 int mantissa, min_twt_dur, twt;
735 uint16_t req_type;
736 };
737
738 struct ieee80211_twt_setup {
739 int control;
740 struct ieee80211_twt_params *params;
741 };
742
743 /* 802.11-2020, Table 9-297-TWT Setup Command field values */
744 enum ieee80211_twt_setup_cmd {
745 TWT_SETUP_CMD_REQUEST = 0,
746 TWT_SETUP_CMD_SUGGEST = 1,
747 /* DEMAND = 2, */
748 /* GROUPING = 3, */
749 TWT_SETUP_CMD_ACCEPT = 4,
750 /* ALTERNATE = 5 */
751 TWT_SETUP_CMD_DICTATE = 6,
752 TWT_SETUP_CMD_REJECT = 7,
753 };
754
755 struct ieee80211_bssid_index {
756 int bssid_index;
757 };
758
759 enum ieee80211_ap_reg_power {
760 IEEE80211_REG_UNSET_AP,
761 IEEE80211_REG_LPI_AP,
762 IEEE80211_REG_SP_AP,
763 IEEE80211_REG_VLP_AP,
764 };
765
766 /*
767 * 802.11ax-2021, Table 9-277-Meaning of Maximum Transmit Power Count subfield
768 * if Maximum Transmit Power Interpretation subfield is 1 or 3
769 */
770 #define IEEE80211_MAX_NUM_PWR_LEVEL 8
771
772 /*
773 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
774 * encoding (4) * Table E-12-Regulatory Info subfield encoding in the
775 * United States (2)
776 */
777 #define IEEE80211_TPE_MAX_IE_NUM 8
778
779 /* 802.11ax-2021, 9.4.2.161 Transmit Power Envelope element */
780 struct ieee80211_tx_pwr_env {
781 uint8_t tx_power_info;
782 uint8_t tx_power[IEEE80211_MAX_NUM_PWR_LEVEL];
783 };
784
785 /* 802.11ax-2021, Figure 9-617-Transmit Power Information field format */
786 /* These are field masks (3bit/3bit/2bit). */
787 #define IEEE80211_TX_PWR_ENV_INFO_COUNT 0x07
788 #define IEEE80211_TX_PWR_ENV_INFO_INTERPRET 0x38
789 #define IEEE80211_TX_PWR_ENV_INFO_CATEGORY 0xc0
790
791 /*
792 * 802.11ax-2021, Table 9-275a-Maximum Transmit Power Interpretation subfield
793 * encoding
794 */
795 enum ieee80211_tx_pwr_interpretation_subfield_enc {
796 IEEE80211_TPE_LOCAL_EIRP,
797 IEEE80211_TPE_LOCAL_EIRP_PSD,
798 IEEE80211_TPE_REG_CLIENT_EIRP,
799 IEEE80211_TPE_REG_CLIENT_EIRP_PSD,
800 };
801
802 enum ieee80211_tx_pwr_category_6ghz {
803 IEEE80211_TPE_CAT_6GHZ_DEFAULT,
804 };
805
806 /* 802.11-2020, 9.4.2.27 BSS Load element */
807 struct ieee80211_bss_load_elem {
808 uint16_t sta_count;
809 uint8_t channel_util;
810 uint16_t avail_adm_capa;
811 };
812
813 struct ieee80211_p2p_noa_desc {
814 uint32_t count; /* uint8_t ? */
815 uint32_t duration;
816 uint32_t interval;
817 uint32_t start_time;
818 };
819
820 struct ieee80211_p2p_noa_attr {
821 uint8_t index;
822 uint8_t oppps_ctwindow;
823 struct ieee80211_p2p_noa_desc desc[4];
824 };
825
826
827 /* net80211: IEEE80211_IS_CTL() */
828 static __inline bool
ieee80211_is_ctl(__le16 fc)829 ieee80211_is_ctl(__le16 fc)
830 {
831 __le16 v;
832
833 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
834 v = htole16(IEEE80211_FC0_TYPE_CTL);
835
836 return (fc == v);
837 }
838
839 /* net80211: IEEE80211_IS_DATA() */
840 static __inline bool
ieee80211_is_data(__le16 fc)841 ieee80211_is_data(__le16 fc)
842 {
843 __le16 v;
844
845 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
846 v = htole16(IEEE80211_FC0_TYPE_DATA);
847
848 return (fc == v);
849 }
850
851 /* net80211: IEEE80211_IS_QOSDATA() */
852 static __inline bool
ieee80211_is_data_qos(__le16 fc)853 ieee80211_is_data_qos(__le16 fc)
854 {
855 __le16 v;
856
857 fc &= htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_MASK);
858 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA | IEEE80211_FC0_TYPE_DATA);
859
860 return (fc == v);
861 }
862
863 /* net80211: IEEE80211_IS_MGMT() */
864 static __inline bool
ieee80211_is_mgmt(__le16 fc)865 ieee80211_is_mgmt(__le16 fc)
866 {
867 __le16 v;
868
869 fc &= htole16(IEEE80211_FC0_TYPE_MASK);
870 v = htole16(IEEE80211_FC0_TYPE_MGT);
871
872 return (fc == v);
873 }
874
875
876 /* Derived from net80211::ieee80211_anyhdrsize. */
877 static __inline unsigned int
ieee80211_hdrlen(__le16 fc)878 ieee80211_hdrlen(__le16 fc)
879 {
880 unsigned int size;
881
882 if (ieee80211_is_ctl(fc)) {
883 switch (fc & htole16(IEEE80211_FC0_SUBTYPE_MASK)) {
884 case htole16(IEEE80211_FC0_SUBTYPE_CTS):
885 case htole16(IEEE80211_FC0_SUBTYPE_ACK):
886 return sizeof(struct ieee80211_frame_ack);
887 case htole16(IEEE80211_FC0_SUBTYPE_BAR):
888 return sizeof(struct ieee80211_frame_bar);
889 }
890 return (sizeof(struct ieee80211_frame_min));
891 }
892
893 size = sizeof(struct ieee80211_frame);
894 if (ieee80211_is_data(fc)) {
895 if ((fc & htole16(IEEE80211_FC1_DIR_MASK << 8)) ==
896 htole16(IEEE80211_FC1_DIR_DSTODS << 8))
897 size += IEEE80211_ADDR_LEN;
898 if ((fc & htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
899 IEEE80211_FC0_TYPE_MASK)) ==
900 htole16(IEEE80211_FC0_SUBTYPE_QOS_DATA |
901 IEEE80211_FC0_TYPE_DATA))
902 size += sizeof(uint16_t);
903 }
904
905 if (ieee80211_is_mgmt(fc)) {
906 #ifdef __notyet__
907 printf("XXX-BZ %s: TODO? fc %#04x size %u\n",
908 __func__, fc, size);
909 #endif
910 ;
911 }
912
913 return (size);
914 }
915
916 static inline bool
ieee80211_is_trigger(__le16 fc)917 ieee80211_is_trigger(__le16 fc)
918 {
919 __le16 v;
920
921 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
922 v = htole16(IEEE80211_FC0_SUBTYPE_TRIGGER | IEEE80211_FC0_TYPE_CTL);
923
924 return (fc == v);
925 }
926
927 static __inline bool
ieee80211_is_action(__le16 fc)928 ieee80211_is_action(__le16 fc)
929 {
930 __le16 v;
931
932 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
933 v = htole16(IEEE80211_FC0_SUBTYPE_ACTION | IEEE80211_FC0_TYPE_MGT);
934
935 return (fc == v);
936 }
937
938 static __inline bool
ieee80211_is_probe_resp(__le16 fc)939 ieee80211_is_probe_resp(__le16 fc)
940 {
941 __le16 v;
942
943 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
944 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_RESP | IEEE80211_FC0_TYPE_MGT);
945
946 return (fc == v);
947 }
948
949 static __inline bool
ieee80211_is_auth(__le16 fc)950 ieee80211_is_auth(__le16 fc)
951 {
952 __le16 v;
953
954 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
955 v = htole16(IEEE80211_FC0_SUBTYPE_AUTH | IEEE80211_FC0_TYPE_MGT);
956
957 return (fc == v);
958 }
959
960 static __inline bool
ieee80211_is_assoc_req(__le16 fc)961 ieee80211_is_assoc_req(__le16 fc)
962 {
963 __le16 v;
964
965 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
966 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
967
968 return (fc == v);
969 }
970
971 static __inline bool
ieee80211_is_assoc_resp(__le16 fc)972 ieee80211_is_assoc_resp(__le16 fc)
973 {
974 __le16 v;
975
976 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
977 v = htole16(IEEE80211_FC0_SUBTYPE_ASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
978
979 return (fc == v);
980 }
981
982 static __inline bool
ieee80211_is_reassoc_req(__le16 fc)983 ieee80211_is_reassoc_req(__le16 fc)
984 {
985 __le16 v;
986
987 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
988 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_REQ | IEEE80211_FC0_TYPE_MGT);
989
990 return (fc == v);
991 }
992
993 static __inline bool
ieee80211_is_reassoc_resp(__le16 fc)994 ieee80211_is_reassoc_resp(__le16 fc)
995 {
996 __le16 v;
997
998 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
999 v = htole16(IEEE80211_FC0_SUBTYPE_REASSOC_RESP | IEEE80211_FC0_TYPE_MGT);
1000
1001 return (fc == v);
1002 }
1003
1004 static __inline bool
ieee80211_is_disassoc(__le16 fc)1005 ieee80211_is_disassoc(__le16 fc)
1006 {
1007 __le16 v;
1008
1009 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1010 v = htole16(IEEE80211_FC0_SUBTYPE_DISASSOC | IEEE80211_FC0_TYPE_MGT);
1011
1012 return (fc == v);
1013 }
1014
1015 static __inline bool
ieee80211_is_data_present(__le16 fc)1016 ieee80211_is_data_present(__le16 fc)
1017 {
1018 __le16 v;
1019
1020 /* If it is a data frame and NODATA is not present. */
1021 fc &= htole16(IEEE80211_FC0_TYPE_MASK | IEEE80211_FC0_SUBTYPE_NODATA);
1022 v = htole16(IEEE80211_FC0_TYPE_DATA);
1023
1024 return (fc == v);
1025 }
1026
1027 static __inline bool
ieee80211_is_deauth(__le16 fc)1028 ieee80211_is_deauth(__le16 fc)
1029 {
1030 __le16 v;
1031
1032 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1033 v = htole16(IEEE80211_FC0_SUBTYPE_DEAUTH | IEEE80211_FC0_TYPE_MGT);
1034
1035 return (fc == v);
1036 }
1037
1038 static __inline bool
ieee80211_is_beacon(__le16 fc)1039 ieee80211_is_beacon(__le16 fc)
1040 {
1041 __le16 v;
1042
1043 /*
1044 * For as much as I get it this comes in LE and unlike FreeBSD
1045 * where we get the entire frame header and u8[], here we get the
1046 * 9.2.4.1 Frame Control field only. Mask and compare.
1047 */
1048 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1049 v = htole16(IEEE80211_FC0_SUBTYPE_BEACON | IEEE80211_FC0_TYPE_MGT);
1050
1051 return (fc == v);
1052 }
1053
1054
1055 static __inline bool
ieee80211_is_probe_req(__le16 fc)1056 ieee80211_is_probe_req(__le16 fc)
1057 {
1058 __le16 v;
1059
1060 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1061 v = htole16(IEEE80211_FC0_SUBTYPE_PROBE_REQ | IEEE80211_FC0_TYPE_MGT);
1062
1063 return (fc == v);
1064 }
1065
1066 static __inline bool
ieee80211_has_protected(__le16 fc)1067 ieee80211_has_protected(__le16 fc)
1068 {
1069
1070 return (fc & htole16(IEEE80211_FC1_PROTECTED << 8));
1071 }
1072
1073 static __inline bool
ieee80211_is_back_req(__le16 fc)1074 ieee80211_is_back_req(__le16 fc)
1075 {
1076 __le16 v;
1077
1078 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1079 v = htole16(IEEE80211_FC0_SUBTYPE_BAR | IEEE80211_FC0_TYPE_CTL);
1080
1081 return (fc == v);
1082 }
1083
1084 static __inline bool
ieee80211_is_bufferable_mmpdu(struct sk_buff * skb)1085 ieee80211_is_bufferable_mmpdu(struct sk_buff *skb)
1086 {
1087 struct ieee80211_mgmt *mgmt;
1088 __le16 fc;
1089
1090 mgmt = (struct ieee80211_mgmt *)skb->data;
1091 fc = mgmt->frame_control;
1092
1093 /* 11.2.2 Bufferable MMPDUs, 80211-2020. */
1094 /* XXX we do not care about IBSS yet. */
1095
1096 if (!ieee80211_is_mgmt(fc))
1097 return (false);
1098 if (ieee80211_is_action(fc)) /* XXX FTM? */
1099 return (true); /* XXX false? */
1100 if (ieee80211_is_disassoc(fc))
1101 return (true);
1102 if (ieee80211_is_deauth(fc))
1103 return (true);
1104
1105 TODO();
1106
1107 return (false);
1108 }
1109
1110 static __inline bool
ieee80211_is_nullfunc(__le16 fc)1111 ieee80211_is_nullfunc(__le16 fc)
1112 {
1113 __le16 v;
1114
1115 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1116 v = htole16(IEEE80211_FC0_SUBTYPE_NODATA | IEEE80211_FC0_TYPE_DATA);
1117
1118 return (fc == v);
1119 }
1120
1121 static __inline bool
ieee80211_is_qos_nullfunc(__le16 fc)1122 ieee80211_is_qos_nullfunc(__le16 fc)
1123 {
1124 __le16 v;
1125
1126 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1127 v = htole16(IEEE80211_FC0_SUBTYPE_QOS_NULL | IEEE80211_FC0_TYPE_DATA);
1128
1129 return (fc == v);
1130 }
1131
1132 static __inline bool
ieee80211_is_any_nullfunc(__le16 fc)1133 ieee80211_is_any_nullfunc(__le16 fc)
1134 {
1135
1136 return (ieee80211_is_nullfunc(fc) || ieee80211_is_qos_nullfunc(fc));
1137 }
1138
1139 static inline bool
ieee80211_is_pspoll(__le16 fc)1140 ieee80211_is_pspoll(__le16 fc)
1141 {
1142 __le16 v;
1143
1144 fc &= htole16(IEEE80211_FC0_SUBTYPE_MASK | IEEE80211_FC0_TYPE_MASK);
1145 v = htole16(IEEE80211_FC0_SUBTYPE_PS_POLL | IEEE80211_FC0_TYPE_CTL);
1146
1147 return (fc == v);
1148 }
1149
1150 static __inline bool
ieee80211_has_a4(__le16 fc)1151 ieee80211_has_a4(__le16 fc)
1152 {
1153 __le16 v;
1154
1155 fc &= htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1156 v = htole16((IEEE80211_FC1_DIR_TODS | IEEE80211_FC1_DIR_FROMDS) << 8);
1157
1158 return (fc == v);
1159 }
1160
1161 static __inline bool
ieee80211_has_order(__le16 fc)1162 ieee80211_has_order(__le16 fc)
1163 {
1164
1165 return (fc & htole16(IEEE80211_FC1_ORDER << 8));
1166 }
1167
1168 static __inline bool
ieee80211_has_retry(__le16 fc)1169 ieee80211_has_retry(__le16 fc)
1170 {
1171
1172 return (fc & htole16(IEEE80211_FC1_RETRY << 8));
1173 }
1174
1175
1176 static __inline bool
ieee80211_has_fromds(__le16 fc)1177 ieee80211_has_fromds(__le16 fc)
1178 {
1179
1180 return (fc & htole16(IEEE80211_FC1_DIR_FROMDS << 8));
1181 }
1182
1183 static __inline bool
ieee80211_has_tods(__le16 fc)1184 ieee80211_has_tods(__le16 fc)
1185 {
1186
1187 return (fc & htole16(IEEE80211_FC1_DIR_TODS << 8));
1188 }
1189
1190 static __inline uint8_t *
ieee80211_get_SA(struct ieee80211_hdr * hdr)1191 ieee80211_get_SA(struct ieee80211_hdr *hdr)
1192 {
1193
1194 if (ieee80211_has_a4(hdr->frame_control))
1195 return (hdr->addr4);
1196 if (ieee80211_has_fromds(hdr->frame_control))
1197 return (hdr->addr3);
1198 return (hdr->addr2);
1199 }
1200
1201 static __inline uint8_t *
ieee80211_get_DA(struct ieee80211_hdr * hdr)1202 ieee80211_get_DA(struct ieee80211_hdr *hdr)
1203 {
1204
1205 if (ieee80211_has_tods(hdr->frame_control))
1206 return (hdr->addr3);
1207 return (hdr->addr1);
1208 }
1209
1210 static __inline bool
ieee80211_is_frag(struct ieee80211_hdr * hdr)1211 ieee80211_is_frag(struct ieee80211_hdr *hdr)
1212 {
1213 TODO();
1214 return (false);
1215 }
1216
1217 static __inline bool
ieee80211_is_first_frag(__le16 fc)1218 ieee80211_is_first_frag(__le16 fc)
1219 {
1220 TODO();
1221 return (false);
1222 }
1223
1224 static __inline bool
ieee80211_is_robust_mgmt_frame(struct sk_buff * skb)1225 ieee80211_is_robust_mgmt_frame(struct sk_buff *skb)
1226 {
1227 TODO();
1228 return (false);
1229 }
1230
1231 static __inline bool
ieee80211_is_ftm(struct sk_buff * skb)1232 ieee80211_is_ftm(struct sk_buff *skb)
1233 {
1234 TODO();
1235 return (false);
1236 }
1237
1238 static __inline bool
ieee80211_is_timing_measurement(struct sk_buff * skb)1239 ieee80211_is_timing_measurement(struct sk_buff *skb)
1240 {
1241 TODO();
1242 return (false);
1243 }
1244
1245 static __inline bool
ieee80211_has_pm(__le16 fc)1246 ieee80211_has_pm(__le16 fc)
1247 {
1248 TODO();
1249 return (false);
1250 }
1251
1252 static __inline bool
ieee80211_has_morefrags(__le16 fc)1253 ieee80211_has_morefrags(__le16 fc)
1254 {
1255
1256 fc &= htole16(IEEE80211_FC1_MORE_FRAG << 8);
1257 return (fc != 0);
1258 }
1259
1260 static __inline u8 *
ieee80211_get_qos_ctl(struct ieee80211_hdr * hdr)1261 ieee80211_get_qos_ctl(struct ieee80211_hdr *hdr)
1262 {
1263 if (ieee80211_has_a4(hdr->frame_control))
1264 return (u8 *)hdr + 30;
1265 else
1266 return (u8 *)hdr + 24;
1267 }
1268
1269 #endif /* _LINUXKPI_LINUX_IEEE80211_H */
1270