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STRUCT STATION_INFO(9) Actions and configuration STRUCT STATION_INFO(9)

NAME

struct_station_info - station information

SYNOPSIS

struct station_info {

u64 filled;
u32 connected_time;
u32 inactive_time;
u64 rx_bytes;
u64 tx_bytes;
u16 llid;
u16 plid;
u8 plink_state;
s8 signal;
s8 signal_avg;
u8 chains;
s8 chain_signal[IEEE80211_MAX_CHAINS];
s8 chain_signal_avg[IEEE80211_MAX_CHAINS];
struct rate_info txrate;
struct rate_info rxrate;
u32 rx_packets;
u32 tx_packets;
u32 tx_retries;
u32 tx_failed;
u32 rx_dropped_misc;
struct sta_bss_parameters bss_param;
struct nl80211_sta_flag_update sta_flags;
int generation;
const u8 * assoc_req_ies;
size_t assoc_req_ies_len;
u32 beacon_loss_count;
s64 t_offset;
enum nl80211_mesh_power_mode local_pm;
enum nl80211_mesh_power_mode peer_pm;
enum nl80211_mesh_power_mode nonpeer_pm;
u32 expected_throughput;
u64 tx_duration;
u64 rx_duration;
u64 rx_beacon;
u8 rx_beacon_signal_avg;
u8 connected_to_gate;
struct cfg80211_tid_stats * pertid;
s8 ack_signal;
s8 avg_ack_signal;
u16 airtime_weight;
u32 rx_mpdu_count;
u32 fcs_err_count;
u32 airtime_link_metric; };

MEMBERS

filled

bitflag of flags using the bits of enum nl80211_sta_info to indicate the relevant values in this struct for them

connected_time

time(in secs) since a station is last connected

inactive_time

time since last station activity (tx/rx) in milliseconds

rx_bytes

bytes (size of MPDUs) received from this station

tx_bytes

bytes (size of MPDUs) transmitted to this station

llid

mesh local link id

plid

mesh peer link id

plink_state

mesh peer link state

signal

The signal strength, type depends on the wiphy's signal_type. For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.

signal_avg

Average signal strength, type depends on the wiphy's signal_type. For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_.

chains

bitmask for filled values in chain_signal, chain_signal_avg

chain_signal[IEEE80211_MAX_CHAINS]

per-chain signal strength of last received packet in dBm

chain_signal_avg[IEEE80211_MAX_CHAINS]

per-chain signal strength average in dBm

txrate

current unicast bitrate from this station

rxrate

current unicast bitrate to this station

rx_packets

packets (MSDUs & MMPDUs) received from this station

tx_packets

packets (MSDUs & MMPDUs) transmitted to this station

tx_retries

cumulative retry counts (MPDUs)

tx_failed

number of failed transmissions (MPDUs) (retries exceeded, no ACK)

rx_dropped_misc

Dropped for un-specified reason.

bss_param

current BSS parameters

sta_flags

station flags mask & values

generation

generation number for nl80211 dumps. This number should increase every time the list of stations changes, i.e. when a station is added or removed, so that userspace can tell whether it got a consistent snapshot.

assoc_req_ies

IEs from (Re)Association Request. This is used only when in AP mode with drivers that do not use user space MLME/SME implementation. The information is provided for the cfg80211_new_sta calls to notify user space of the IEs.

assoc_req_ies_len

Length of assoc_req_ies buffer in octets.

beacon_loss_count

Number of times beacon loss event has triggered.

t_offset

Time offset of the station relative to this host.

local_pm

local mesh STA power save mode

peer_pm

peer mesh STA power save mode

nonpeer_pm

non-peer mesh STA power save mode

expected_throughput

expected throughput in kbps (including 802.11 headers) towards this station.

tx_duration

aggregate PPDU duration(usecs) for all the frames to a peer

rx_duration

aggregate PPDU duration(usecs) for all the frames from a peer

rx_beacon

number of beacons received from this peer

rx_beacon_signal_avg

signal strength average (in dBm) for beacons received from this peer

connected_to_gate

true if mesh STA has a path to mesh gate

pertid

per-TID statistics, see struct cfg80211_tid_stats, using the last (IEEE80211_NUM_TIDS) index for MSDUs not encapsulated in QoS-MPDUs. Note that this doesn't use the filled bit, but is used if non-NULL.

ack_signal

signal strength (in dBm) of the last ACK frame.

avg_ack_signal

average rssi value of ack packet for the no of msdu's has been sent.

airtime_weight

current airtime scheduling weight

rx_mpdu_count

number of MPDUs received from this station

fcs_err_count

number of packets (MPDUs) received from this station with an FCS error. This counter should be incremented only when TA of the received packet with an FCS error matches the peer MAC address.

airtime_link_metric

mesh airtime link metric.

DESCRIPTION

Station information filled by driver for get_station and dump_station.

AUTHOR

Johannes Berg <johannes@sipsolutions.net>

Author.

COPYRIGHT

June 2023 Kernel Hackers Manual 3.10