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