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cfg80211: support FTM responder configuration/statistics

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Allow userspace to enable fine timing measurement responder
functionality with configurable lci/civic parameters in AP mode.
This can be done at AP start or changing beacon parameters.

A new EXT_FEATURE flag is introduced for drivers to advertise
the capability.

Also nl80211 API support for retrieving statistics is added.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
[remove unused cfg80211_ftm_responder_params, clarify docs,
 move validation into policy]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Pradeep Kumar Chitrapu
2018-09-20 17:30:09 -07:00
committed by Johannes Berg
parent 7057f2496c
commit 81e54d08d9
5 changed files with 328 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

90
include/uapi/linux/nl80211.h
View File

@@ -1033,6 +1033,9 @@
* %NL80211_ATTR_CHANNEL_WIDTH,%NL80211_ATTR_NSS attributes with its
* address(specified in %NL80211_ATTR_MAC).
*
* @NL80211_CMD_GET_FTM_RESPONDER_STATS: Retrieve FTM responder statistics, in
* the %NL80211_ATTR_FTM_RESPONDER_STATS attribute.
*
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -1245,6 +1248,8 @@ enum nl80211_commands {
NL80211_CMD_CONTROL_PORT_FRAME,
NL80211_CMD_GET_FTM_RESPONDER_STATS,
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -2241,6 +2246,14 @@ enum nl80211_commands {
* association request when used with NL80211_CMD_NEW_STATION). Can be set
* only if %NL80211_STA_FLAG_WME is set.
*
* @NL80211_ATTR_FTM_RESPONDER: nested attribute which user-space can include
* in %NL80211_CMD_START_AP or %NL80211_CMD_SET_BEACON for fine timing
* measurement (FTM) responder functionality and containing parameters as
* possible, see &enum nl80211_ftm_responder_attr
*
* @NL80211_ATTR_FTM_RESPONDER_STATS: Nested attribute with FTM responder
* statistics, see &enum nl80211_ftm_responder_stats.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -2682,6 +2695,10 @@ enum nl80211_attrs {
NL80211_ATTR_HE_CAPABILITY,
NL80211_ATTR_FTM_RESPONDER,
NL80211_ATTR_FTM_RESPONDER_STATS,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -5225,6 +5242,8 @@ enum nl80211_feature_flags {
* @NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT: Driver/device can omit all data
* except for supported rates from the probe request content if requested
* by the %NL80211_SCAN_FLAG_MIN_PREQ_CONTENT flag.
* @NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER: Driver supports enabling fine
* timing measurement responder role.
*
* @NL80211_EXT_FEATURE_CAN_REPLACE_PTK0: Driver/device confirm that they are
* able to rekey an in-use key correctly. Userspace must not rekey PTK keys
@@ -5269,6 +5288,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SCAN_RANDOM_SN,
NL80211_EXT_FEATURE_SCAN_MIN_PREQ_CONTENT,
NL80211_EXT_FEATURE_CAN_REPLACE_PTK0,
NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,
@@ -5808,4 +5828,74 @@ enum nl80211_external_auth_action {
NL80211_EXTERNAL_AUTH_ABORT,
};
/**
* enum nl80211_ftm_responder_attributes - fine timing measurement
* responder attributes
* @__NL80211_FTM_RESP_ATTR_INVALID: Invalid
* @NL80211_FTM_RESP_ATTR_ENABLED: FTM responder is enabled
* @NL80211_FTM_RESP_ATTR_LCI: The content of Measurement Report Element
* (9.4.2.22 in 802.11-2016) with type 8 - LCI (9.4.2.22.10)
* @NL80211_FTM_RESP_ATTR_CIVIC: The content of Measurement Report Element
* (9.4.2.22 in 802.11-2016) with type 11 - Civic (Section 9.4.2.22.13)
* @__NL80211_FTM_RESP_ATTR_LAST: Internal
* @NL80211_FTM_RESP_ATTR_MAX: highest FTM responder attribute.
*/
enum nl80211_ftm_responder_attributes {
__NL80211_FTM_RESP_ATTR_INVALID,
NL80211_FTM_RESP_ATTR_ENABLED,
NL80211_FTM_RESP_ATTR_LCI,
NL80211_FTM_RESP_ATTR_CIVICLOC,
/* keep last */
__NL80211_FTM_RESP_ATTR_LAST,
NL80211_FTM_RESP_ATTR_MAX = __NL80211_FTM_RESP_ATTR_LAST - 1,
};
/*
* enum nl80211_ftm_responder_stats - FTM responder statistics
*
* These attribute types are used with %NL80211_ATTR_FTM_RESPONDER_STATS
* when getting FTM responder statistics.
*
* @__NL80211_FTM_STATS_INVALID: attribute number 0 is reserved
* @NL80211_FTM_STATS_SUCCESS_NUM: number of FTM sessions in which all frames
* were ssfully answered (u32)
* @NL80211_FTM_STATS_PARTIAL_NUM: number of FTM sessions in which part of the
* frames were successfully answered (u32)
* @NL80211_FTM_STATS_FAILED_NUM: number of failed FTM sessions (u32)
* @NL80211_FTM_STATS_ASAP_NUM: number of ASAP sessions (u32)
* @NL80211_FTM_STATS_NON_ASAP_NUM: number of non-ASAP sessions (u32)
* @NL80211_FTM_STATS_TOTAL_DURATION_MSEC: total sessions durations - gives an
* indication of how much time the responder was busy (u64, msec)
* @NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM: number of unknown FTM triggers -
* triggers from initiators that didn't finish successfully the negotiation
* phase with the responder (u32)
* @NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM: number of FTM reschedule requests
* - initiator asks for a new scheduling although it already has scheduled
* FTM slot (u32)
* @NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM: number of FTM triggers out of
* scheduled window (u32)
* @NL80211_FTM_STATS_PAD: used for padding, ignore
* @__NL80211_TXQ_ATTR_AFTER_LAST: Internal
* @NL80211_FTM_STATS_MAX: highest possible FTM responder stats attribute
*/
enum nl80211_ftm_responder_stats {
__NL80211_FTM_STATS_INVALID,
NL80211_FTM_STATS_SUCCESS_NUM,
NL80211_FTM_STATS_PARTIAL_NUM,
NL80211_FTM_STATS_FAILED_NUM,
NL80211_FTM_STATS_ASAP_NUM,
NL80211_FTM_STATS_NON_ASAP_NUM,
NL80211_FTM_STATS_TOTAL_DURATION_MSEC,
NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM,
NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM,
NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM,
NL80211_FTM_STATS_PAD,
/* keep last */
__NL80211_FTM_STATS_AFTER_LAST,
NL80211_FTM_STATS_MAX = __NL80211_FTM_STATS_AFTER_LAST - 1
};
#endif /* __LINUX_NL80211_H */