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1# SPDX-License-Identifier: GPL-2.0-only
2config MAC80211
3 tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
4 depends on CFG80211
5 select CRYPTO
6 select CRYPTO_LIB_ARC4
7 select CRYPTO_AES
8 select CRYPTO_CCM
9 select CRYPTO_GCM
10 select CRYPTO_CMAC
11 select CRC32
12 help
13 This option enables the hardware independent IEEE 802.11
14 networking stack.
15
16comment "CFG80211 needs to be enabled for MAC80211"
17 depends on CFG80211=n
18
19if MAC80211 != n
20
21config MAC80211_HAS_RC
22 bool
23
24config MAC80211_RC_MINSTREL
25 bool "Minstrel" if EXPERT
26 select MAC80211_HAS_RC
27 default y
28 help
29 This option enables the 'minstrel' TX rate control algorithm
30
31choice
32 prompt "Default rate control algorithm"
33 depends on MAC80211_HAS_RC
34 default MAC80211_RC_DEFAULT_MINSTREL
35 help
36 This option selects the default rate control algorithm
37 mac80211 will use. Note that this default can still be
38 overridden through the ieee80211_default_rc_algo module
39 parameter if different algorithms are available.
40
41config MAC80211_RC_DEFAULT_MINSTREL
42 bool "Minstrel"
43 depends on MAC80211_RC_MINSTREL
44 help
45 Select Minstrel as the default rate control algorithm.
46
47
48endchoice
49
50config MAC80211_RC_DEFAULT
51 string
52 default "minstrel_ht" if MAC80211_RC_DEFAULT_MINSTREL
53 default ""
54
55endif
56
57comment "Some wireless drivers require a rate control algorithm"
58 depends on MAC80211 && MAC80211_HAS_RC=n
59
60config MAC80211_MESH
61 bool "Enable mac80211 mesh networking support"
62 depends on MAC80211
63 help
64 Select this option to enable 802.11 mesh operation in mac80211
65 drivers that support it. 802.11 mesh connects multiple stations
66 over (possibly multi-hop) wireless links to form a single logical
67 LAN.
68
69config MAC80211_LEDS
70 bool "Enable LED triggers"
71 depends on MAC80211
72 depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211
73 select LEDS_TRIGGERS
74 help
75 This option enables a few LED triggers for different
76 packet receive/transmit events.
77
78config MAC80211_DEBUGFS
79 bool "Export mac80211 internals in DebugFS"
80 depends on MAC80211 && DEBUG_FS
81 help
82 Select this to see extensive information about
83 the internal state of mac80211 in debugfs.
84
85 Say N unless you know you need this.
86
87config MAC80211_MESSAGE_TRACING
88 bool "Trace all mac80211 debug messages"
89 depends on MAC80211
90 help
91 Select this option to have mac80211 register the
92 mac80211_msg trace subsystem with tracepoints to
93 collect all debugging messages, independent of
94 printing them into the kernel log.
95
96 The overhead in this option is that all the messages
97 need to be present in the binary and formatted at
98 runtime for tracing.
99
100menuconfig MAC80211_DEBUG_MENU
101 bool "Select mac80211 debugging features"
102 depends on MAC80211
103 help
104 This option collects various mac80211 debug settings.
105
106config MAC80211_NOINLINE
107 bool "Do not inline TX/RX handlers"
108 depends on MAC80211_DEBUG_MENU
109 help
110 This option affects code generation in mac80211, when
111 selected some functions are marked "noinline" to allow
112 easier debugging of problems in the transmit and receive
113 paths.
114
115 This option increases code size a bit and inserts a lot
116 of function calls in the code, but is otherwise safe to
117 enable.
118
119 If unsure, say N unless you expect to be finding problems
120 in mac80211.
121
122config MAC80211_VERBOSE_DEBUG
123 bool "Verbose debugging output"
124 depends on MAC80211_DEBUG_MENU
125 help
126 Selecting this option causes mac80211 to print out
127 many debugging messages. It should not be selected
128 on production systems as some of the messages are
129 remotely triggerable.
130
131 Do not select this option.
132
133config MAC80211_MLME_DEBUG
134 bool "Verbose managed MLME output"
135 depends on MAC80211_DEBUG_MENU
136 help
137 Selecting this option causes mac80211 to print out
138 debugging messages for the managed-mode MLME. It
139 should not be selected on production systems as some
140 of the messages are remotely triggerable.
141
142 Do not select this option.
143
144config MAC80211_STA_DEBUG
145 bool "Verbose station debugging"
146 depends on MAC80211_DEBUG_MENU
147 help
148 Selecting this option causes mac80211 to print out
149 debugging messages for station addition/removal.
150
151 Do not select this option.
152
153config MAC80211_HT_DEBUG
154 bool "Verbose HT debugging"
155 depends on MAC80211_DEBUG_MENU
156 help
157 This option enables 802.11n High Throughput features
158 debug tracing output.
159
160 It should not be selected on production systems as some
161 of the messages are remotely triggerable.
162
163 Do not select this option.
164
165config MAC80211_OCB_DEBUG
166 bool "Verbose OCB debugging"
167 depends on MAC80211_DEBUG_MENU
168 help
169 Selecting this option causes mac80211 to print out
170 very verbose OCB debugging messages. It should not
171 be selected on production systems as those messages
172 are remotely triggerable.
173
174 Do not select this option.
175
176config MAC80211_IBSS_DEBUG
177 bool "Verbose IBSS debugging"
178 depends on MAC80211_DEBUG_MENU
179 help
180 Selecting this option causes mac80211 to print out
181 very verbose IBSS debugging messages. It should not
182 be selected on production systems as those messages
183 are remotely triggerable.
184
185 Do not select this option.
186
187config MAC80211_PS_DEBUG
188 bool "Verbose powersave mode debugging"
189 depends on MAC80211_DEBUG_MENU
190 help
191 Selecting this option causes mac80211 to print out very
192 verbose power save mode debugging messages (when mac80211
193 is an AP and has power saving stations.)
194 It should not be selected on production systems as those
195 messages are remotely triggerable.
196
197 Do not select this option.
198
199config MAC80211_MPL_DEBUG
200 bool "Verbose mesh peer link debugging"
201 depends on MAC80211_DEBUG_MENU
202 depends on MAC80211_MESH
203 help
204 Selecting this option causes mac80211 to print out very
205 verbose mesh peer link debugging messages (when mac80211
206 is taking part in a mesh network).
207 It should not be selected on production systems as those
208 messages are remotely triggerable.
209
210 Do not select this option.
211
212config MAC80211_MPATH_DEBUG
213 bool "Verbose mesh path debugging"
214 depends on MAC80211_DEBUG_MENU
215 depends on MAC80211_MESH
216 help
217 Selecting this option causes mac80211 to print out very
218 verbose mesh path selection debugging messages (when mac80211
219 is taking part in a mesh network).
220 It should not be selected on production systems as those
221 messages are remotely triggerable.
222
223 Do not select this option.
224
225config MAC80211_MHWMP_DEBUG
226 bool "Verbose mesh HWMP routing debugging"
227 depends on MAC80211_DEBUG_MENU
228 depends on MAC80211_MESH
229 help
230 Selecting this option causes mac80211 to print out very
231 verbose mesh routing (HWMP) debugging messages (when mac80211
232 is taking part in a mesh network).
233 It should not be selected on production systems as those
234 messages are remotely triggerable.
235
236 Do not select this option.
237
238config MAC80211_MESH_SYNC_DEBUG
239 bool "Verbose mesh synchronization debugging"
240 depends on MAC80211_DEBUG_MENU
241 depends on MAC80211_MESH
242 help
243 Selecting this option causes mac80211 to print out very verbose mesh
244 synchronization debugging messages (when mac80211 is taking part in a
245 mesh network).
246
247 Do not select this option.
248
249config MAC80211_MESH_CSA_DEBUG
250 bool "Verbose mesh channel switch debugging"
251 depends on MAC80211_DEBUG_MENU
252 depends on MAC80211_MESH
253 help
254 Selecting this option causes mac80211 to print out very verbose mesh
255 channel switch debugging messages (when mac80211 is taking part in a
256 mesh network).
257
258 Do not select this option.
259
260config MAC80211_MESH_PS_DEBUG
261 bool "Verbose mesh powersave debugging"
262 depends on MAC80211_DEBUG_MENU
263 depends on MAC80211_MESH
264 help
265 Selecting this option causes mac80211 to print out very verbose mesh
266 powersave debugging messages (when mac80211 is taking part in a
267 mesh network).
268
269 Do not select this option.
270
271config MAC80211_TDLS_DEBUG
272 bool "Verbose TDLS debugging"
273 depends on MAC80211_DEBUG_MENU
274 help
275 Selecting this option causes mac80211 to print out very
276 verbose TDLS selection debugging messages (when mac80211
277 is a TDLS STA).
278 It should not be selected on production systems as those
279 messages are remotely triggerable.
280
281 Do not select this option.
282
283config MAC80211_DEBUG_COUNTERS
284 bool "Extra statistics for TX/RX debugging"
285 depends on MAC80211_DEBUG_MENU
286 depends on MAC80211_DEBUGFS
287 help
288 Selecting this option causes mac80211 to keep additional
289 and very verbose statistics about TX and RX handler use
290 as well as a few selected dot11 counters. These will be
291 exposed in debugfs.
292
293 Note that some of the counters are not concurrency safe
294 and may thus not always be accurate.
295
296 If unsure, say N.
297
298config MAC80211_STA_HASH_MAX_SIZE
299 int "Station hash table maximum size" if MAC80211_DEBUG_MENU
300 default 0
301 help
302 Setting this option to a low value (e.g. 4) allows testing the
303 hash table with collisions relatively deterministically (just
304 connect more stations than the number selected here.)
305
306 If unsure, leave the default of 0.
1config MAC80211
2 tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
3 depends on CFG80211
4 select CRYPTO
5 select CRYPTO_ARC4
6 select CRYPTO_AES
7 select CRYPTO_CCM
8 select CRYPTO_GCM
9 select CRC32
10 ---help---
11 This option enables the hardware independent IEEE 802.11
12 networking stack.
13
14comment "CFG80211 needs to be enabled for MAC80211"
15 depends on CFG80211=n
16
17if MAC80211 != n
18
19config MAC80211_HAS_RC
20 bool
21
22config MAC80211_RC_MINSTREL
23 bool "Minstrel" if EXPERT
24 select MAC80211_HAS_RC
25 default y
26 ---help---
27 This option enables the 'minstrel' TX rate control algorithm
28
29config MAC80211_RC_MINSTREL_HT
30 bool "Minstrel 802.11n support" if EXPERT
31 depends on MAC80211_RC_MINSTREL
32 default y
33 ---help---
34 This option enables the 'minstrel_ht' TX rate control algorithm
35
36config MAC80211_RC_MINSTREL_VHT
37 bool "Minstrel 802.11ac support" if EXPERT
38 depends on MAC80211_RC_MINSTREL_HT
39 default n
40 ---help---
41 This option enables VHT in the 'minstrel_ht' TX rate control algorithm
42
43choice
44 prompt "Default rate control algorithm"
45 depends on MAC80211_HAS_RC
46 default MAC80211_RC_DEFAULT_MINSTREL
47 ---help---
48 This option selects the default rate control algorithm
49 mac80211 will use. Note that this default can still be
50 overridden through the ieee80211_default_rc_algo module
51 parameter if different algorithms are available.
52
53config MAC80211_RC_DEFAULT_MINSTREL
54 bool "Minstrel"
55 depends on MAC80211_RC_MINSTREL
56 ---help---
57 Select Minstrel as the default rate control algorithm.
58
59
60endchoice
61
62config MAC80211_RC_DEFAULT
63 string
64 default "minstrel_ht" if MAC80211_RC_DEFAULT_MINSTREL && MAC80211_RC_MINSTREL_HT
65 default "minstrel" if MAC80211_RC_DEFAULT_MINSTREL
66 default ""
67
68endif
69
70comment "Some wireless drivers require a rate control algorithm"
71 depends on MAC80211 && MAC80211_HAS_RC=n
72
73config MAC80211_MESH
74 bool "Enable mac80211 mesh networking (pre-802.11s) support"
75 depends on MAC80211
76 ---help---
77 This options enables support of Draft 802.11s mesh networking.
78 The implementation is based on Draft 2.08 of the Mesh Networking
79 amendment. However, no compliance with that draft is claimed or even
80 possible, as drafts leave a number of identifiers to be defined after
81 ratification. For more information visit http://o11s.org/.
82
83config MAC80211_LEDS
84 bool "Enable LED triggers"
85 depends on MAC80211
86 depends on LEDS_CLASS
87 select LEDS_TRIGGERS
88 ---help---
89 This option enables a few LED triggers for different
90 packet receive/transmit events.
91
92config MAC80211_DEBUGFS
93 bool "Export mac80211 internals in DebugFS"
94 depends on MAC80211 && DEBUG_FS
95 ---help---
96 Select this to see extensive information about
97 the internal state of mac80211 in debugfs.
98
99 Say N unless you know you need this.
100
101config MAC80211_MESSAGE_TRACING
102 bool "Trace all mac80211 debug messages"
103 depends on MAC80211
104 ---help---
105 Select this option to have mac80211 register the
106 mac80211_msg trace subsystem with tracepoints to
107 collect all debugging messages, independent of
108 printing them into the kernel log.
109
110 The overhead in this option is that all the messages
111 need to be present in the binary and formatted at
112 runtime for tracing.
113
114menuconfig MAC80211_DEBUG_MENU
115 bool "Select mac80211 debugging features"
116 depends on MAC80211
117 ---help---
118 This option collects various mac80211 debug settings.
119
120config MAC80211_NOINLINE
121 bool "Do not inline TX/RX handlers"
122 depends on MAC80211_DEBUG_MENU
123 ---help---
124 This option affects code generation in mac80211, when
125 selected some functions are marked "noinline" to allow
126 easier debugging of problems in the transmit and receive
127 paths.
128
129 This option increases code size a bit and inserts a lot
130 of function calls in the code, but is otherwise safe to
131 enable.
132
133 If unsure, say N unless you expect to be finding problems
134 in mac80211.
135
136config MAC80211_VERBOSE_DEBUG
137 bool "Verbose debugging output"
138 depends on MAC80211_DEBUG_MENU
139 ---help---
140 Selecting this option causes mac80211 to print out
141 many debugging messages. It should not be selected
142 on production systems as some of the messages are
143 remotely triggerable.
144
145 Do not select this option.
146
147config MAC80211_MLME_DEBUG
148 bool "Verbose managed MLME output"
149 depends on MAC80211_DEBUG_MENU
150 ---help---
151 Selecting this option causes mac80211 to print out
152 debugging messages for the managed-mode MLME. It
153 should not be selected on production systems as some
154 of the messages are remotely triggerable.
155
156 Do not select this option.
157
158config MAC80211_STA_DEBUG
159 bool "Verbose station debugging"
160 depends on MAC80211_DEBUG_MENU
161 ---help---
162 Selecting this option causes mac80211 to print out
163 debugging messages for station addition/removal.
164
165 Do not select this option.
166
167config MAC80211_HT_DEBUG
168 bool "Verbose HT debugging"
169 depends on MAC80211_DEBUG_MENU
170 ---help---
171 This option enables 802.11n High Throughput features
172 debug tracing output.
173
174 It should not be selected on production systems as some
175 of the messages are remotely triggerable.
176
177 Do not select this option.
178
179config MAC80211_OCB_DEBUG
180 bool "Verbose OCB debugging"
181 depends on MAC80211_DEBUG_MENU
182 ---help---
183 Selecting this option causes mac80211 to print out
184 very verbose OCB debugging messages. It should not
185 be selected on production systems as those messages
186 are remotely triggerable.
187
188 Do not select this option.
189
190config MAC80211_IBSS_DEBUG
191 bool "Verbose IBSS debugging"
192 depends on MAC80211_DEBUG_MENU
193 ---help---
194 Selecting this option causes mac80211 to print out
195 very verbose IBSS debugging messages. It should not
196 be selected on production systems as those messages
197 are remotely triggerable.
198
199 Do not select this option.
200
201config MAC80211_PS_DEBUG
202 bool "Verbose powersave mode debugging"
203 depends on MAC80211_DEBUG_MENU
204 ---help---
205 Selecting this option causes mac80211 to print out very
206 verbose power save mode debugging messages (when mac80211
207 is an AP and has power saving stations.)
208 It should not be selected on production systems as those
209 messages are remotely triggerable.
210
211 Do not select this option.
212
213config MAC80211_MPL_DEBUG
214 bool "Verbose mesh peer link debugging"
215 depends on MAC80211_DEBUG_MENU
216 depends on MAC80211_MESH
217 ---help---
218 Selecting this option causes mac80211 to print out very
219 verbose mesh peer link debugging messages (when mac80211
220 is taking part in a mesh network).
221 It should not be selected on production systems as those
222 messages are remotely triggerable.
223
224 Do not select this option.
225
226config MAC80211_MPATH_DEBUG
227 bool "Verbose mesh path debugging"
228 depends on MAC80211_DEBUG_MENU
229 depends on MAC80211_MESH
230 ---help---
231 Selecting this option causes mac80211 to print out very
232 verbose mesh path selection debugging messages (when mac80211
233 is taking part in a mesh network).
234 It should not be selected on production systems as those
235 messages are remotely triggerable.
236
237 Do not select this option.
238
239config MAC80211_MHWMP_DEBUG
240 bool "Verbose mesh HWMP routing debugging"
241 depends on MAC80211_DEBUG_MENU
242 depends on MAC80211_MESH
243 ---help---
244 Selecting this option causes mac80211 to print out very
245 verbose mesh routing (HWMP) debugging messages (when mac80211
246 is taking part in a mesh network).
247 It should not be selected on production systems as those
248 messages are remotely triggerable.
249
250 Do not select this option.
251
252config MAC80211_MESH_SYNC_DEBUG
253 bool "Verbose mesh synchronization debugging"
254 depends on MAC80211_DEBUG_MENU
255 depends on MAC80211_MESH
256 ---help---
257 Selecting this option causes mac80211 to print out very verbose mesh
258 synchronization debugging messages (when mac80211 is taking part in a
259 mesh network).
260
261 Do not select this option.
262
263config MAC80211_MESH_CSA_DEBUG
264 bool "Verbose mesh channel switch debugging"
265 depends on MAC80211_DEBUG_MENU
266 depends on MAC80211_MESH
267 ---help---
268 Selecting this option causes mac80211 to print out very verbose mesh
269 channel switch debugging messages (when mac80211 is taking part in a
270 mesh network).
271
272 Do not select this option.
273
274config MAC80211_MESH_PS_DEBUG
275 bool "Verbose mesh powersave debugging"
276 depends on MAC80211_DEBUG_MENU
277 depends on MAC80211_MESH
278 ---help---
279 Selecting this option causes mac80211 to print out very verbose mesh
280 powersave debugging messages (when mac80211 is taking part in a
281 mesh network).
282
283 Do not select this option.
284
285config MAC80211_TDLS_DEBUG
286 bool "Verbose TDLS debugging"
287 depends on MAC80211_DEBUG_MENU
288 ---help---
289 Selecting this option causes mac80211 to print out very
290 verbose TDLS selection debugging messages (when mac80211
291 is a TDLS STA).
292 It should not be selected on production systems as those
293 messages are remotely triggerable.
294
295 Do not select this option.
296
297config MAC80211_DEBUG_COUNTERS
298 bool "Extra statistics for TX/RX debugging"
299 depends on MAC80211_DEBUG_MENU
300 depends on MAC80211_DEBUGFS
301 ---help---
302 Selecting this option causes mac80211 to keep additional
303 and very verbose statistics about TX and RX handler use
304 as well as a few selected dot11 counters. These will be
305 exposed in debugfs.
306
307 Note that some of the counters are not concurrency safe
308 and may thus not always be accurate.
309
310 If unsure, say N.
311
312config MAC80211_STA_HASH_MAX_SIZE
313 int "Station hash table maximum size" if MAC80211_DEBUG_MENU
314 default 0
315 ---help---
316 Setting this option to a low value (e.g. 4) allows testing the
317 hash table with collisions relatively deterministically (just
318 connect more stations than the number selected here.)
319
320 If unsure, leave the default of 0.