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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_KUNIT_TEST
61 tristate "KUnit tests for mac80211" if !KUNIT_ALL_TESTS
62 depends on KUNIT
63 depends on MAC80211
64 default KUNIT_ALL_TESTS
65 help
66 Enable this option to test mac80211 internals with kunit.
67
68 If unsure, say N.
69
70config MAC80211_MESH
71 bool "Enable mac80211 mesh networking support"
72 depends on MAC80211
73 help
74 Select this option to enable 802.11 mesh operation in mac80211
75 drivers that support it. 802.11 mesh connects multiple stations
76 over (possibly multi-hop) wireless links to form a single logical
77 LAN.
78
79config MAC80211_LEDS
80 bool "Enable LED triggers"
81 depends on MAC80211
82 depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211
83 select LEDS_TRIGGERS
84 help
85 This option enables a few LED triggers for different
86 packet receive/transmit events.
87
88config MAC80211_DEBUGFS
89 bool "Export mac80211 internals in DebugFS"
90 depends on MAC80211 && CFG80211_DEBUGFS
91 help
92 Select this to see extensive information about
93 the internal state of mac80211 in debugfs.
94
95 Say N unless you know you need this.
96
97config MAC80211_MESSAGE_TRACING
98 bool "Trace all mac80211 debug messages"
99 depends on MAC80211
100 help
101 Select this option to have mac80211 register the
102 mac80211_msg trace subsystem with tracepoints to
103 collect all debugging messages, independent of
104 printing them into the kernel log.
105
106 The overhead in this option is that all the messages
107 need to be present in the binary and formatted at
108 runtime for tracing.
109
110menuconfig MAC80211_DEBUG_MENU
111 bool "Select mac80211 debugging features"
112 depends on MAC80211
113 help
114 This option collects various mac80211 debug settings.
115
116config MAC80211_NOINLINE
117 bool "Do not inline TX/RX handlers"
118 depends on MAC80211_DEBUG_MENU
119 help
120 This option affects code generation in mac80211, when
121 selected some functions are marked "noinline" to allow
122 easier debugging of problems in the transmit and receive
123 paths.
124
125 This option increases code size a bit and inserts a lot
126 of function calls in the code, but is otherwise safe to
127 enable.
128
129 If unsure, say N unless you expect to be finding problems
130 in mac80211.
131
132config MAC80211_VERBOSE_DEBUG
133 bool "Verbose debugging output"
134 depends on MAC80211_DEBUG_MENU
135 help
136 Selecting this option causes mac80211 to print out
137 many debugging messages. It should not be selected
138 on production systems as some of the messages are
139 remotely triggerable.
140
141 Do not select this option.
142
143config MAC80211_MLME_DEBUG
144 bool "Verbose managed MLME output"
145 depends on MAC80211_DEBUG_MENU
146 help
147 Selecting this option causes mac80211 to print out
148 debugging messages for the managed-mode MLME. It
149 should not be selected on production systems as some
150 of the messages are remotely triggerable.
151
152 Do not select this option.
153
154config MAC80211_STA_DEBUG
155 bool "Verbose station debugging"
156 depends on MAC80211_DEBUG_MENU
157 help
158 Selecting this option causes mac80211 to print out
159 debugging messages for station addition/removal.
160
161 Do not select this option.
162
163config MAC80211_HT_DEBUG
164 bool "Verbose HT debugging"
165 depends on MAC80211_DEBUG_MENU
166 help
167 This option enables 802.11n High Throughput features
168 debug tracing output.
169
170 It should not be selected on production systems as some
171 of the messages are remotely triggerable.
172
173 Do not select this option.
174
175config MAC80211_OCB_DEBUG
176 bool "Verbose OCB debugging"
177 depends on MAC80211_DEBUG_MENU
178 help
179 Selecting this option causes mac80211 to print out
180 very verbose OCB debugging messages. It should not
181 be selected on production systems as those messages
182 are remotely triggerable.
183
184 Do not select this option.
185
186config MAC80211_IBSS_DEBUG
187 bool "Verbose IBSS debugging"
188 depends on MAC80211_DEBUG_MENU
189 help
190 Selecting this option causes mac80211 to print out
191 very verbose IBSS debugging messages. It should not
192 be selected on production systems as those messages
193 are remotely triggerable.
194
195 Do not select this option.
196
197config MAC80211_PS_DEBUG
198 bool "Verbose powersave mode debugging"
199 depends on MAC80211_DEBUG_MENU
200 help
201 Selecting this option causes mac80211 to print out very
202 verbose power save mode debugging messages (when mac80211
203 is an AP and has power saving stations.)
204 It should not be selected on production systems as those
205 messages are remotely triggerable.
206
207 Do not select this option.
208
209config MAC80211_MPL_DEBUG
210 bool "Verbose mesh peer link debugging"
211 depends on MAC80211_DEBUG_MENU
212 depends on MAC80211_MESH
213 help
214 Selecting this option causes mac80211 to print out very
215 verbose mesh peer link debugging messages (when mac80211
216 is taking part in a mesh network).
217 It should not be selected on production systems as those
218 messages are remotely triggerable.
219
220 Do not select this option.
221
222config MAC80211_MPATH_DEBUG
223 bool "Verbose mesh path debugging"
224 depends on MAC80211_DEBUG_MENU
225 depends on MAC80211_MESH
226 help
227 Selecting this option causes mac80211 to print out very
228 verbose mesh path selection debugging messages (when mac80211
229 is taking part in a mesh network).
230 It should not be selected on production systems as those
231 messages are remotely triggerable.
232
233 Do not select this option.
234
235config MAC80211_MHWMP_DEBUG
236 bool "Verbose mesh HWMP routing debugging"
237 depends on MAC80211_DEBUG_MENU
238 depends on MAC80211_MESH
239 help
240 Selecting this option causes mac80211 to print out very
241 verbose mesh routing (HWMP) debugging messages (when mac80211
242 is taking part in a mesh network).
243 It should not be selected on production systems as those
244 messages are remotely triggerable.
245
246 Do not select this option.
247
248config MAC80211_MESH_SYNC_DEBUG
249 bool "Verbose mesh synchronization debugging"
250 depends on MAC80211_DEBUG_MENU
251 depends on MAC80211_MESH
252 help
253 Selecting this option causes mac80211 to print out very verbose mesh
254 synchronization debugging messages (when mac80211 is taking part in a
255 mesh network).
256
257 Do not select this option.
258
259config MAC80211_MESH_CSA_DEBUG
260 bool "Verbose mesh channel switch debugging"
261 depends on MAC80211_DEBUG_MENU
262 depends on MAC80211_MESH
263 help
264 Selecting this option causes mac80211 to print out very verbose mesh
265 channel switch debugging messages (when mac80211 is taking part in a
266 mesh network).
267
268 Do not select this option.
269
270config MAC80211_MESH_PS_DEBUG
271 bool "Verbose mesh powersave debugging"
272 depends on MAC80211_DEBUG_MENU
273 depends on MAC80211_MESH
274 help
275 Selecting this option causes mac80211 to print out very verbose mesh
276 powersave debugging messages (when mac80211 is taking part in a
277 mesh network).
278
279 Do not select this option.
280
281config MAC80211_TDLS_DEBUG
282 bool "Verbose TDLS debugging"
283 depends on MAC80211_DEBUG_MENU
284 help
285 Selecting this option causes mac80211 to print out very
286 verbose TDLS selection debugging messages (when mac80211
287 is a TDLS STA).
288 It should not be selected on production systems as those
289 messages are remotely triggerable.
290
291 Do not select this option.
292
293config MAC80211_DEBUG_COUNTERS
294 bool "Extra statistics for TX/RX debugging"
295 depends on MAC80211_DEBUG_MENU
296 depends on MAC80211_DEBUGFS
297 help
298 Selecting this option causes mac80211 to keep additional
299 and very verbose statistics about TX and RX handler use
300 as well as a few selected dot11 counters. These will be
301 exposed in debugfs.
302
303 Note that some of the counters are not concurrency safe
304 and may thus not always be accurate.
305
306 If unsure, say N.
307
308config MAC80211_STA_HASH_MAX_SIZE
309 int "Station hash table maximum size" if MAC80211_DEBUG_MENU
310 default 0
311 help
312 Setting this option to a low value (e.g. 4) allows testing the
313 hash table with collisions relatively deterministically (just
314 connect more stations than the number selected here.)
315
316 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 CRC32
9 select AVERAGE
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_PID
23 bool "PID controller based rate control algorithm" if EXPERT
24 select MAC80211_HAS_RC
25 ---help---
26 This option enables a TX rate control algorithm for
27 mac80211 that uses a PID controller to select the TX
28 rate.
29
30config MAC80211_RC_MINSTREL
31 bool "Minstrel" if EXPERT
32 select MAC80211_HAS_RC
33 default y
34 ---help---
35 This option enables the 'minstrel' TX rate control algorithm
36
37config MAC80211_RC_MINSTREL_HT
38 bool "Minstrel 802.11n support" if EXPERT
39 depends on MAC80211_RC_MINSTREL
40 default y
41 ---help---
42 This option enables the 'minstrel_ht' TX rate control algorithm
43
44choice
45 prompt "Default rate control algorithm"
46 depends on MAC80211_HAS_RC
47 default MAC80211_RC_DEFAULT_MINSTREL
48 ---help---
49 This option selects the default rate control algorithm
50 mac80211 will use. Note that this default can still be
51 overridden through the ieee80211_default_rc_algo module
52 parameter if different algorithms are available.
53
54config MAC80211_RC_DEFAULT_PID
55 bool "PID controller based rate control algorithm"
56 depends on MAC80211_RC_PID
57 ---help---
58 Select the PID controller based rate control as the
59 default rate control algorithm. You should choose
60 this unless you know what you are doing.
61
62config MAC80211_RC_DEFAULT_MINSTREL
63 bool "Minstrel"
64 depends on MAC80211_RC_MINSTREL
65 ---help---
66 Select Minstrel as the default rate control algorithm.
67
68
69endchoice
70
71config MAC80211_RC_DEFAULT
72 string
73 default "minstrel_ht" if MAC80211_RC_DEFAULT_MINSTREL && MAC80211_RC_MINSTREL_HT
74 default "minstrel" if MAC80211_RC_DEFAULT_MINSTREL
75 default "pid" if MAC80211_RC_DEFAULT_PID
76 default ""
77
78endif
79
80comment "Some wireless drivers require a rate control algorithm"
81 depends on MAC80211 && MAC80211_HAS_RC=n
82
83config MAC80211_MESH
84 bool "Enable mac80211 mesh networking (pre-802.11s) support"
85 depends on MAC80211
86 ---help---
87 This options enables support of Draft 802.11s mesh networking.
88 The implementation is based on Draft 2.08 of the Mesh Networking
89 amendment. However, no compliance with that draft is claimed or even
90 possible, as drafts leave a number of identifiers to be defined after
91 ratification. For more information visit http://o11s.org/.
92
93config MAC80211_LEDS
94 bool "Enable LED triggers"
95 depends on MAC80211
96 depends on LEDS_CLASS
97 select LEDS_TRIGGERS
98 ---help---
99 This option enables a few LED triggers for different
100 packet receive/transmit events.
101
102config MAC80211_DEBUGFS
103 bool "Export mac80211 internals in DebugFS"
104 depends on MAC80211 && DEBUG_FS
105 ---help---
106 Select this to see extensive information about
107 the internal state of mac80211 in debugfs.
108
109 Say N unless you know you need this.
110
111config MAC80211_MESSAGE_TRACING
112 bool "Trace all mac80211 debug messages"
113 depends on MAC80211
114 ---help---
115 Select this option to have mac80211 register the
116 mac80211_msg trace subsystem with tracepoints to
117 collect all debugging messages, independent of
118 printing them into the kernel log.
119
120 The overhead in this option is that all the messages
121 need to be present in the binary and formatted at
122 runtime for tracing.
123
124menuconfig MAC80211_DEBUG_MENU
125 bool "Select mac80211 debugging features"
126 depends on MAC80211
127 ---help---
128 This option collects various mac80211 debug settings.
129
130config MAC80211_NOINLINE
131 bool "Do not inline TX/RX handlers"
132 depends on MAC80211_DEBUG_MENU
133 ---help---
134 This option affects code generation in mac80211, when
135 selected some functions are marked "noinline" to allow
136 easier debugging of problems in the transmit and receive
137 paths.
138
139 This option increases code size a bit and inserts a lot
140 of function calls in the code, but is otherwise safe to
141 enable.
142
143 If unsure, say N unless you expect to be finding problems
144 in mac80211.
145
146config MAC80211_VERBOSE_DEBUG
147 bool "Verbose debugging output"
148 depends on MAC80211_DEBUG_MENU
149 ---help---
150 Selecting this option causes mac80211 to print out
151 many debugging messages. It should not be selected
152 on production systems as some of the messages are
153 remotely triggerable.
154
155 Do not select this option.
156
157config MAC80211_MLME_DEBUG
158 bool "Verbose managed MLME output"
159 depends on MAC80211_DEBUG_MENU
160 ---help---
161 Selecting this option causes mac80211 to print out
162 debugging messages for the managed-mode MLME. It
163 should not be selected on production systems as some
164 of the messages are remotely triggerable.
165
166 Do not select this option.
167
168config MAC80211_STA_DEBUG
169 bool "Verbose station debugging"
170 depends on MAC80211_DEBUG_MENU
171 ---help---
172 Selecting this option causes mac80211 to print out
173 debugging messages for station addition/removal.
174
175 Do not select this option.
176
177config MAC80211_HT_DEBUG
178 bool "Verbose HT debugging"
179 depends on MAC80211_DEBUG_MENU
180 ---help---
181 This option enables 802.11n High Throughput features
182 debug tracing output.
183
184 It should not be selected on production systems as some
185 of the messages are remotely triggerable.
186
187 Do not select this option.
188
189config MAC80211_IBSS_DEBUG
190 bool "Verbose IBSS debugging"
191 depends on MAC80211_DEBUG_MENU
192 ---help---
193 Selecting this option causes mac80211 to print out
194 very verbose IBSS debugging messages. It should not
195 be selected on production systems as those messages
196 are remotely triggerable.
197
198 Do not select this option.
199
200config MAC80211_PS_DEBUG
201 bool "Verbose powersave mode debugging"
202 depends on MAC80211_DEBUG_MENU
203 ---help---
204 Selecting this option causes mac80211 to print out very
205 verbose power save mode debugging messages (when mac80211
206 is an AP and has power saving stations.)
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_MPL_DEBUG
213 bool "Verbose mesh peer link 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 peer link 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_MPATH_DEBUG
226 bool "Verbose mesh path 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 path selection 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_MHWMP_DEBUG
239 bool "Verbose mesh HWMP routing debugging"
240 depends on MAC80211_DEBUG_MENU
241 depends on MAC80211_MESH
242 ---help---
243 Selecting this option causes mac80211 to print out very
244 verbose mesh routing (HWMP) debugging messages (when mac80211
245 is taking part in a mesh network).
246 It should not be selected on production systems as those
247 messages are remotely triggerable.
248
249 Do not select this option.
250
251config MAC80211_MESH_SYNC_DEBUG
252 bool "Verbose mesh synchronization debugging"
253 depends on MAC80211_DEBUG_MENU
254 depends on MAC80211_MESH
255 ---help---
256 Selecting this option causes mac80211 to print out very verbose mesh
257 synchronization debugging messages (when mac80211 is taking part in a
258 mesh network).
259
260 Do not select this option.
261
262config MAC80211_MESH_CSA_DEBUG
263 bool "Verbose mesh channel switch debugging"
264 depends on MAC80211_DEBUG_MENU
265 depends on MAC80211_MESH
266 ---help---
267 Selecting this option causes mac80211 to print out very verbose mesh
268 channel switch debugging messages (when mac80211 is taking part in a
269 mesh network).
270
271 Do not select this option.
272
273config MAC80211_MESH_PS_DEBUG
274 bool "Verbose mesh powersave debugging"
275 depends on MAC80211_DEBUG_MENU
276 depends on MAC80211_MESH
277 ---help---
278 Selecting this option causes mac80211 to print out very verbose mesh
279 powersave debugging messages (when mac80211 is taking part in a
280 mesh network).
281
282 Do not select this option.
283
284config MAC80211_TDLS_DEBUG
285 bool "Verbose TDLS debugging"
286 depends on MAC80211_DEBUG_MENU
287 ---help---
288 Selecting this option causes mac80211 to print out very
289 verbose TDLS selection debugging messages (when mac80211
290 is a TDLS STA).
291 It should not be selected on production systems as those
292 messages are remotely triggerable.
293
294 Do not select this option.
295
296config MAC80211_DEBUG_COUNTERS
297 bool "Extra statistics for TX/RX debugging"
298 depends on MAC80211_DEBUG_MENU
299 depends on MAC80211_DEBUGFS
300 ---help---
301 Selecting this option causes mac80211 to keep additional
302 and very verbose statistics about TX and RX handler use
303 and show them in debugfs.
304
305 If unsure, say N.