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authorJohannes Berg <johannes.berg@intel.com>2018-09-10 14:29:12 +0300
committerJohannes Berg <johannes.berg@intel.com>2018-11-09 13:20:13 +0300
commit9bb7e0f24e7e7d00daa1219b14539e2e602649b2 (patch)
treeba16695740cec99cd4a4af3198cf791b7ca81b70 /net/wireless/core.h
parent801f87469ee8d97af5997ef52188bb0e1908b110 (diff)
downloadlinux-9bb7e0f24e7e7d00daa1219b14539e2e602649b2.tar.xz
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>
Diffstat (limited to 'net/wireless/core.h')
-rw-r--r--net/wireless/core.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h
index c61dbba8bf47..c5d6f3418601 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -3,6 +3,7 @@
* Wireless configuration interface internals.
*
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright (C) 2018 Intel Corporation
*/
#ifndef __NET_WIRELESS_CORE_H
#define __NET_WIRELESS_CORE_H
@@ -530,4 +531,8 @@ void cfg80211_stop_nan(struct cfg80211_registered_device *rdev,
void cfg80211_cqm_config_free(struct wireless_dev *wdev);
+void cfg80211_release_pmsr(struct wireless_dev *wdev, u32 portid);
+void cfg80211_pmsr_wdev_down(struct wireless_dev *wdev);
+void cfg80211_pmsr_free_wk(struct work_struct *work);
+
#endif /* __NET_WIRELESS_CORE_H */