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2<!DOCTYPE set PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
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4<set>
5 <setinfo>
6 <title>The 802.11 subsystems – for kernel developers</title>
7 <subtitle>
8 Explaining wireless 802.11 networking in the Linux kernel
9 </subtitle>
10
11 <copyright>
12 <year>2007-2009</year>
13 <holder>Johannes Berg</holder>
14 </copyright>
15
16 <authorgroup>
17 <author>
18 <firstname>Johannes</firstname>
19 <surname>Berg</surname>
20 <affiliation>
21 <address><email>johannes@sipsolutions.net</email></address>
22 </affiliation>
23 </author>
24 </authorgroup>
25
26 <legalnotice>
27 <para>
28 This documentation is free software; you can redistribute
29 it and/or modify it under the terms of the GNU General Public
30 License version 2 as published by the Free Software Foundation.
31 </para>
32 <para>
33 This documentation is distributed in the hope that it will be
34 useful, but WITHOUT ANY WARRANTY; without even the implied
35 warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
36 See the GNU General Public License for more details.
37 </para>
38 <para>
39 You should have received a copy of the GNU General Public
40 License along with this documentation; if not, write to the Free
41 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
42 MA 02111-1307 USA
43 </para>
44 <para>
45 For more details see the file COPYING in the source
46 distribution of Linux.
47 </para>
48 </legalnotice>
49
50 <abstract>
51 <para>
52 These books attempt to give a description of the
53 various subsystems that play a role in 802.11 wireless
54 networking in Linux. Since these books are for kernel
55 developers they attempts to document the structures
56 and functions used in the kernel as well as giving a
57 higher-level overview.
58 </para>
59 <para>
60 The reader is expected to be familiar with the 802.11
61 standard as published by the IEEE in 802.11-2007 (or
62 possibly later versions). References to this standard
63 will be given as "802.11-2007 8.1.5".
64 </para>
65 </abstract>
66 </setinfo>
67 <book id="cfg80211-developers-guide">
68 <bookinfo>
69 <title>The cfg80211 subsystem</title>
70
71 <abstract>
72!Pinclude/net/cfg80211.h Introduction
73 </abstract>
74 </bookinfo>
75 <chapter>
76 <title>Device registration</title>
77!Pinclude/net/cfg80211.h Device registration
78!Finclude/net/cfg80211.h ieee80211_band
79!Finclude/net/cfg80211.h ieee80211_channel_flags
80!Finclude/net/cfg80211.h ieee80211_channel
81!Finclude/net/cfg80211.h ieee80211_rate_flags
82!Finclude/net/cfg80211.h ieee80211_rate
83!Finclude/net/cfg80211.h ieee80211_sta_ht_cap
84!Finclude/net/cfg80211.h ieee80211_supported_band
85!Finclude/net/cfg80211.h cfg80211_signal_type
86!Finclude/net/cfg80211.h wiphy_params_flags
87!Finclude/net/cfg80211.h wiphy_flags
88!Finclude/net/cfg80211.h wiphy
89!Finclude/net/cfg80211.h wireless_dev
90!Finclude/net/cfg80211.h wiphy_new
91!Finclude/net/cfg80211.h wiphy_register
92!Finclude/net/cfg80211.h wiphy_unregister
93!Finclude/net/cfg80211.h wiphy_free
94
95!Finclude/net/cfg80211.h wiphy_name
96!Finclude/net/cfg80211.h wiphy_dev
97!Finclude/net/cfg80211.h wiphy_priv
98!Finclude/net/cfg80211.h priv_to_wiphy
99!Finclude/net/cfg80211.h set_wiphy_dev
100!Finclude/net/cfg80211.h wdev_priv
101 </chapter>
102 <chapter>
103 <title>Actions and configuration</title>
104!Pinclude/net/cfg80211.h Actions and configuration
105!Finclude/net/cfg80211.h cfg80211_ops
106!Finclude/net/cfg80211.h vif_params
107!Finclude/net/cfg80211.h key_params
108!Finclude/net/cfg80211.h survey_info_flags
109!Finclude/net/cfg80211.h survey_info
110!Finclude/net/cfg80211.h beacon_parameters
111!Finclude/net/cfg80211.h plink_actions
112!Finclude/net/cfg80211.h station_parameters
113!Finclude/net/cfg80211.h station_info_flags
114!Finclude/net/cfg80211.h rate_info_flags
115!Finclude/net/cfg80211.h rate_info
116!Finclude/net/cfg80211.h station_info
117!Finclude/net/cfg80211.h monitor_flags
118!Finclude/net/cfg80211.h mpath_info_flags
119!Finclude/net/cfg80211.h mpath_info
120!Finclude/net/cfg80211.h bss_parameters
121!Finclude/net/cfg80211.h ieee80211_txq_params
122!Finclude/net/cfg80211.h cfg80211_crypto_settings
123!Finclude/net/cfg80211.h cfg80211_auth_request
124!Finclude/net/cfg80211.h cfg80211_assoc_request
125!Finclude/net/cfg80211.h cfg80211_deauth_request
126!Finclude/net/cfg80211.h cfg80211_disassoc_request
127!Finclude/net/cfg80211.h cfg80211_ibss_params
128!Finclude/net/cfg80211.h cfg80211_connect_params
129!Finclude/net/cfg80211.h cfg80211_pmksa
130!Finclude/net/cfg80211.h cfg80211_send_rx_auth
131!Finclude/net/cfg80211.h cfg80211_send_auth_timeout
132!Finclude/net/cfg80211.h __cfg80211_auth_canceled
133!Finclude/net/cfg80211.h cfg80211_send_rx_assoc
134!Finclude/net/cfg80211.h cfg80211_send_assoc_timeout
135!Finclude/net/cfg80211.h cfg80211_send_deauth
136!Finclude/net/cfg80211.h __cfg80211_send_deauth
137!Finclude/net/cfg80211.h cfg80211_send_disassoc
138!Finclude/net/cfg80211.h __cfg80211_send_disassoc
139!Finclude/net/cfg80211.h cfg80211_ibss_joined
140!Finclude/net/cfg80211.h cfg80211_connect_result
141!Finclude/net/cfg80211.h cfg80211_roamed
142!Finclude/net/cfg80211.h cfg80211_disconnected
143!Finclude/net/cfg80211.h cfg80211_ready_on_channel
144!Finclude/net/cfg80211.h cfg80211_remain_on_channel_expired
145!Finclude/net/cfg80211.h cfg80211_new_sta
146!Finclude/net/cfg80211.h cfg80211_rx_mgmt
147!Finclude/net/cfg80211.h cfg80211_mgmt_tx_status
148!Finclude/net/cfg80211.h cfg80211_cqm_rssi_notify
149!Finclude/net/cfg80211.h cfg80211_michael_mic_failure
150 </chapter>
151 <chapter>
152 <title>Scanning and BSS list handling</title>
153!Pinclude/net/cfg80211.h Scanning and BSS list handling
154!Finclude/net/cfg80211.h cfg80211_ssid
155!Finclude/net/cfg80211.h cfg80211_scan_request
156!Finclude/net/cfg80211.h cfg80211_scan_done
157!Finclude/net/cfg80211.h cfg80211_bss
158!Finclude/net/cfg80211.h cfg80211_inform_bss_frame
159!Finclude/net/cfg80211.h cfg80211_inform_bss
160!Finclude/net/cfg80211.h cfg80211_unlink_bss
161!Finclude/net/cfg80211.h cfg80211_find_ie
162!Finclude/net/cfg80211.h ieee80211_bss_get_ie
163 </chapter>
164 <chapter>
165 <title>Utility functions</title>
166!Pinclude/net/cfg80211.h Utility functions
167!Finclude/net/cfg80211.h ieee80211_channel_to_frequency
168!Finclude/net/cfg80211.h ieee80211_frequency_to_channel
169!Finclude/net/cfg80211.h ieee80211_get_channel
170!Finclude/net/cfg80211.h ieee80211_get_response_rate
171!Finclude/net/cfg80211.h ieee80211_hdrlen
172!Finclude/net/cfg80211.h ieee80211_get_hdrlen_from_skb
173!Finclude/net/cfg80211.h ieee80211_radiotap_iterator
174 </chapter>
175 <chapter>
176 <title>Data path helpers</title>
177!Pinclude/net/cfg80211.h Data path helpers
178!Finclude/net/cfg80211.h ieee80211_data_to_8023
179!Finclude/net/cfg80211.h ieee80211_data_from_8023
180!Finclude/net/cfg80211.h ieee80211_amsdu_to_8023s
181!Finclude/net/cfg80211.h cfg80211_classify8021d
182 </chapter>
183 <chapter>
184 <title>Regulatory enforcement infrastructure</title>
185!Pinclude/net/cfg80211.h Regulatory enforcement infrastructure
186!Finclude/net/cfg80211.h regulatory_hint
187!Finclude/net/cfg80211.h wiphy_apply_custom_regulatory
188!Finclude/net/cfg80211.h freq_reg_info
189 </chapter>
190 <chapter>
191 <title>RFkill integration</title>
192!Pinclude/net/cfg80211.h RFkill integration
193!Finclude/net/cfg80211.h wiphy_rfkill_set_hw_state
194!Finclude/net/cfg80211.h wiphy_rfkill_start_polling
195!Finclude/net/cfg80211.h wiphy_rfkill_stop_polling
196 </chapter>
197 <chapter>
198 <title>Test mode</title>
199!Pinclude/net/cfg80211.h Test mode
200!Finclude/net/cfg80211.h cfg80211_testmode_alloc_reply_skb
201!Finclude/net/cfg80211.h cfg80211_testmode_reply
202!Finclude/net/cfg80211.h cfg80211_testmode_alloc_event_skb
203!Finclude/net/cfg80211.h cfg80211_testmode_event
204 </chapter>
205 </book>
206 <book id="mac80211-developers-guide">
207 <bookinfo>
208 <title>The mac80211 subsystem</title>
209 <abstract>
210!Pinclude/net/mac80211.h Introduction
211!Pinclude/net/mac80211.h Warning
212 </abstract>
213 </bookinfo>
214
215 <toc></toc>
216
217 <!--
218 Generally, this document shall be ordered by increasing complexity.
219 It is important to note that readers should be able to read only
220 the first few sections to get a working driver and only advanced
221 usage should require reading the full document.
222 -->
223
224 <part>
225 <title>The basic mac80211 driver interface</title>
226 <partintro>
227 <para>
228 You should read and understand the information contained
229 within this part of the book while implementing a driver.
230 In some chapters, advanced usage is noted, that may be
231 skipped at first.
232 </para>
233 <para>
234 This part of the book only covers station and monitor mode
235 functionality, additional information required to implement
236 the other modes is covered in the second part of the book.
237 </para>
238 </partintro>
239
240 <chapter id="basics">
241 <title>Basic hardware handling</title>
242 <para>TBD</para>
243 <para>
244 This chapter shall contain information on getting a hw
245 struct allocated and registered with mac80211.
246 </para>
247 <para>
248 Since it is required to allocate rates/modes before registering
249 a hw struct, this chapter shall also contain information on setting
250 up the rate/mode structs.
251 </para>
252 <para>
253 Additionally, some discussion about the callbacks and
254 the general programming model should be in here, including
255 the definition of ieee80211_ops which will be referred to
256 a lot.
257 </para>
258 <para>
259 Finally, a discussion of hardware capabilities should be done
260 with references to other parts of the book.
261 </para>
262 <!-- intentionally multiple !F lines to get proper order -->
263!Finclude/net/mac80211.h ieee80211_hw
264!Finclude/net/mac80211.h ieee80211_hw_flags
265!Finclude/net/mac80211.h SET_IEEE80211_DEV
266!Finclude/net/mac80211.h SET_IEEE80211_PERM_ADDR
267!Finclude/net/mac80211.h ieee80211_ops
268!Finclude/net/mac80211.h ieee80211_alloc_hw
269!Finclude/net/mac80211.h ieee80211_register_hw
270!Finclude/net/mac80211.h ieee80211_get_tx_led_name
271!Finclude/net/mac80211.h ieee80211_get_rx_led_name
272!Finclude/net/mac80211.h ieee80211_get_assoc_led_name
273!Finclude/net/mac80211.h ieee80211_get_radio_led_name
274!Finclude/net/mac80211.h ieee80211_unregister_hw
275!Finclude/net/mac80211.h ieee80211_free_hw
276 </chapter>
277
278 <chapter id="phy-handling">
279 <title>PHY configuration</title>
280 <para>TBD</para>
281 <para>
282 This chapter should describe PHY handling including
283 start/stop callbacks and the various structures used.
284 </para>
285!Finclude/net/mac80211.h ieee80211_conf
286!Finclude/net/mac80211.h ieee80211_conf_flags
287 </chapter>
288
289 <chapter id="iface-handling">
290 <title>Virtual interfaces</title>
291 <para>TBD</para>
292 <para>
293 This chapter should describe virtual interface basics
294 that are relevant to the driver (VLANs, MGMT etc are not.)
295 It should explain the use of the add_iface/remove_iface
296 callbacks as well as the interface configuration callbacks.
297 </para>
298 <para>Things related to AP mode should be discussed there.</para>
299 <para>
300 Things related to supporting multiple interfaces should be
301 in the appropriate chapter, a BIG FAT note should be here about
302 this though and the recommendation to allow only a single
303 interface in STA mode at first!
304 </para>
305!Finclude/net/mac80211.h ieee80211_vif
306 </chapter>
307
308 <chapter id="rx-tx">
309 <title>Receive and transmit processing</title>
310 <sect1>
311 <title>what should be here</title>
312 <para>TBD</para>
313 <para>
314 This should describe the receive and transmit
315 paths in mac80211/the drivers as well as
316 transmit status handling.
317 </para>
318 </sect1>
319 <sect1>
320 <title>Frame format</title>
321!Pinclude/net/mac80211.h Frame format
322 </sect1>
323 <sect1>
324 <title>Packet alignment</title>
325!Pnet/mac80211/rx.c Packet alignment
326 </sect1>
327 <sect1>
328 <title>Calling into mac80211 from interrupts</title>
329!Pinclude/net/mac80211.h Calling mac80211 from interrupts
330 </sect1>
331 <sect1>
332 <title>functions/definitions</title>
333!Finclude/net/mac80211.h ieee80211_rx_status
334!Finclude/net/mac80211.h mac80211_rx_flags
335!Finclude/net/mac80211.h ieee80211_tx_info
336!Finclude/net/mac80211.h ieee80211_rx
337!Finclude/net/mac80211.h ieee80211_rx_irqsafe
338!Finclude/net/mac80211.h ieee80211_tx_status
339!Finclude/net/mac80211.h ieee80211_tx_status_irqsafe
340!Finclude/net/mac80211.h ieee80211_rts_get
341!Finclude/net/mac80211.h ieee80211_rts_duration
342!Finclude/net/mac80211.h ieee80211_ctstoself_get
343!Finclude/net/mac80211.h ieee80211_ctstoself_duration
344!Finclude/net/mac80211.h ieee80211_generic_frame_duration
345!Finclude/net/mac80211.h ieee80211_wake_queue
346!Finclude/net/mac80211.h ieee80211_stop_queue
347!Finclude/net/mac80211.h ieee80211_wake_queues
348!Finclude/net/mac80211.h ieee80211_stop_queues
349 </sect1>
350 </chapter>
351
352 <chapter id="filters">
353 <title>Frame filtering</title>
354!Pinclude/net/mac80211.h Frame filtering
355!Finclude/net/mac80211.h ieee80211_filter_flags
356 </chapter>
357 </part>
358
359 <part id="advanced">
360 <title>Advanced driver interface</title>
361 <partintro>
362 <para>
363 Information contained within this part of the book is
364 of interest only for advanced interaction of mac80211
365 with drivers to exploit more hardware capabilities and
366 improve performance.
367 </para>
368 </partintro>
369
370 <chapter id="hardware-crypto-offload">
371 <title>Hardware crypto acceleration</title>
372!Pinclude/net/mac80211.h Hardware crypto acceleration
373 <!-- intentionally multiple !F lines to get proper order -->
374!Finclude/net/mac80211.h set_key_cmd
375!Finclude/net/mac80211.h ieee80211_key_conf
376!Finclude/net/mac80211.h ieee80211_key_flags
377 </chapter>
378
379 <chapter id="powersave">
380 <title>Powersave support</title>
381!Pinclude/net/mac80211.h Powersave support
382 </chapter>
383
384 <chapter id="beacon-filter">
385 <title>Beacon filter support</title>
386!Pinclude/net/mac80211.h Beacon filter support
387!Finclude/net/mac80211.h ieee80211_beacon_loss
388 </chapter>
389
390 <chapter id="qos">
391 <title>Multiple queues and QoS support</title>
392 <para>TBD</para>
393!Finclude/net/mac80211.h ieee80211_tx_queue_params
394 </chapter>
395
396 <chapter id="AP">
397 <title>Access point mode support</title>
398 <para>TBD</para>
399 <para>Some parts of the if_conf should be discussed here instead</para>
400 <para>
401 Insert notes about VLAN interfaces with hw crypto here or
402 in the hw crypto chapter.
403 </para>
404!Finclude/net/mac80211.h ieee80211_get_buffered_bc
405!Finclude/net/mac80211.h ieee80211_beacon_get
406 </chapter>
407
408 <chapter id="multi-iface">
409 <title>Supporting multiple virtual interfaces</title>
410 <para>TBD</para>
411 <para>
412 Note: WDS with identical MAC address should almost always be OK
413 </para>
414 <para>
415 Insert notes about having multiple virtual interfaces with
416 different MAC addresses here, note which configurations are
417 supported by mac80211, add notes about supporting hw crypto
418 with it.
419 </para>
420 </chapter>
421
422 <chapter id="hardware-scan-offload">
423 <title>Hardware scan offload</title>
424 <para>TBD</para>
425!Finclude/net/mac80211.h ieee80211_scan_completed
426 </chapter>
427 </part>
428
429 <part id="rate-control">
430 <title>Rate control interface</title>
431 <partintro>
432 <para>TBD</para>
433 <para>
434 This part of the book describes the rate control algorithm
435 interface and how it relates to mac80211 and drivers.
436 </para>
437 </partintro>
438 <chapter id="dummy">
439 <title>dummy chapter</title>
440 <para>TBD</para>
441 </chapter>
442 </part>
443
444 <part id="internal">
445 <title>Internals</title>
446 <partintro>
447 <para>TBD</para>
448 <para>
449 This part of the book describes mac80211 internals.
450 </para>
451 </partintro>
452
453 <chapter id="key-handling">
454 <title>Key handling</title>
455 <sect1>
456 <title>Key handling basics</title>
457!Pnet/mac80211/key.c Key handling basics
458 </sect1>
459 <sect1>
460 <title>MORE TBD</title>
461 <para>TBD</para>
462 </sect1>
463 </chapter>
464
465 <chapter id="rx-processing">
466 <title>Receive processing</title>
467 <para>TBD</para>
468 </chapter>
469
470 <chapter id="tx-processing">
471 <title>Transmit processing</title>
472 <para>TBD</para>
473 </chapter>
474
475 <chapter id="sta-info">
476 <title>Station info handling</title>
477 <sect1>
478 <title>Programming information</title>
479!Fnet/mac80211/sta_info.h sta_info
480!Fnet/mac80211/sta_info.h ieee80211_sta_info_flags
481 </sect1>
482 <sect1>
483 <title>STA information lifetime rules</title>
484!Pnet/mac80211/sta_info.c STA information lifetime rules
485 </sect1>
486 </chapter>
487
488 <chapter id="synchronisation">
489 <title>Synchronisation</title>
490 <para>TBD</para>
491 <para>Locking, lots of RCU</para>
492 </chapter>
493 </part>
494 </book>
495</set>