linux/net/wireless
Johannes Berg 9bb7e0f24e cfg80211: add peer measurement with FTM initiator API
Add a new "peer measurement" API, that can be used to measure
certain things related to a peer. Right now, only implement
FTM (flight time measurement) over it, but the idea is that
it'll be extensible to also support measuring the necessary
things to calculate e.g. angle-of-arrival for WiGig.

The API is structured to have a generic list of peers and
channels to measure with/on, and then for each of those a
set of measurements (again, only FTM right now) to perform.

Results are sent to the requesting socket, including a final
complete message.

Closing the controlling netlink socket will abort a running
measurement.

v3:
 - add a bit to report "final" for partial results
 - remove list keeping etc. and just unicast out the results
   to the requester (big code reduction ...)
 - also send complete message unicast, and as a result
   remove the multicast group
 - separate out struct cfg80211_pmsr_ftm_request_peer
   from struct cfg80211_pmsr_request_peer
 - document timeout == 0 if no timeout
 - disallow setting timeout nl80211 attribute to 0,
   must not include attribute for no timeout
 - make MAC address randomization optional
 - change num bursts exponent default to 0 (1 burst, rather
   rather than the old default of 15==don't care)

v4:
 - clarify NL80211_ATTR_TIMEOUT documentation

v5:
 - remove unnecessary nl80211 multicast/family changes
 - remove partial results bit/flag, final is sufficient
 - add max_bursts_exponent, max_ftms_per_burst to capability
 - rename "frames per burst" -> "FTMs per burst"

v6:
 - rename cfg80211_pmsr_free_wdev() to cfg80211_pmsr_wdev_down()
   and call it in leave, so the device can't go down with any
   pending measurements

v7:
 - wording fixes (Lior)
 - fix ftm.max_bursts_exponent to allow having the limit of 0 (Lior)

v8:
 - copyright statements
 - minor coding style fixes
 - fix error path leak

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2018-11-09 11:20:13 +01:00
..
certs cfg80211: ship certificates as hex files 2017-12-19 09:28:01 +01:00
.gitignore cfg80211: implement regdb signature checking 2017-10-11 14:24:24 +02:00
ap.c nl80211: Add SOCKET_OWNER support to START_AP 2018-03-29 10:47:28 +02:00
chan.c cfg80211: enable use of non-cleared DFS channels for DFS offload 2018-03-29 10:21:35 +02:00
core.c cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
core.h cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
debugfs.c cfg80211 debugfs: Cleanup some checkpatch issues 2017-02-08 09:15:59 +01:00
debugfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ethtool.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
ibss.c nl80211: Add SOCKET_OWNER support to JOIN_IBSS 2018-03-29 10:36:22 +02:00
Kconfig cfg80211: add missing dependency to CFG80211 suboptions 2018-02-27 10:54:12 +01:00
lib80211_crypt_ccmp.c lib80211: ratelimit key index mismatch 2015-12-04 14:43:32 +01:00
lib80211_crypt_tkip.c lib80211: don't use skcipher 2018-10-10 14:44:16 +02:00
lib80211_crypt_wep.c lib80211: don't use skcipher 2018-10-10 14:44:16 +02:00
lib80211.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
Makefile cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
mesh.c nl80211: Add SOCKET_OWNER support to JOIN_MESH 2018-03-29 10:38:24 +02:00
mlme.c cfg80211: fix CAC_STARTED event handling 2018-03-29 10:21:16 +02:00
nl80211.c cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
nl80211.h cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
ocb.c cfg80211: ocb: Fix null pointer deref if join_ocb is unimplemented 2015-12-04 14:43:32 +01:00
of.c cfg80211: support ieee80211-freq-limit DT property 2017-01-06 14:01:13 +01:00
pmsr.c cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
radiotap.c cfg80211: add radiotap VHT info to rtap_namespace_sizes 2016-02-24 09:04:41 +01:00
rdev-ops.h cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
reg.c Merge remote-tracking branch 'net-next/master' into mac80211-next 2018-10-08 09:48:36 +02:00
reg.h cfg80211: implement regdb signature checking 2017-10-11 14:24:24 +02:00
scan.c cfg80211: Address some corner cases in scan result channel updating 2018-09-10 09:13:09 +02:00
sme.c nl80211: add FILS related parameters to ROAM event 2018-05-23 11:19:02 +02:00
sysfs.c cfg80211: track time using boottime 2018-06-29 09:49:28 +02:00
sysfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
trace.c
trace.h cfg80211: add peer measurement with FTM initiator API 2018-11-09 11:20:13 +01:00
util.c ieee80211: add new VHT capability fields/parsing 2018-09-05 10:03:14 +02:00
wext-compat.c cfg80211: fix wext-compat memory leak 2018-10-01 09:11:36 +02:00
wext-compat.h cfg80211-wext: export symbols only when needed 2015-02-28 21:31:09 +01:00
wext-core.c net: Don't take rtnl_lock() in wireless_nlevent_flush() 2018-03-29 13:47:53 -04:00
wext-priv.c
wext-proc.c proc: introduce proc_create_net{,_data} 2018-05-16 07:24:30 +02:00
wext-sme.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
wext-spy.c