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STRUCT CFG80211_BSS(9) Scanning and BSS list handling STRUCT CFG80211_BSS(9)

NAME

struct_cfg80211_bss - BSS description

SYNOPSIS

struct cfg80211_bss {
  struct ieee80211_channel * channel;
  enum nl80211_bss_scan_width scan_width;
  const struct cfg80211_bss_ies __rcu * ies;
  const struct cfg80211_bss_ies __rcu * beacon_ies;
  const struct cfg80211_bss_ies __rcu * proberesp_ies;
  struct cfg80211_bss * hidden_beacon_bss;
  s32 signal;
  u16 beacon_interval;
  u16 capability;
  u8 bssid[ETH_ALEN];
  u8 priv[0];
};

MEMBERS

channel
channel this BSS is on
scan_width
width of the control channel
ies
the information elements (Note that there is no guarantee that these are well-formed!); this is a pointer to either the beacon_ies or proberesp_ies depending on whether Probe Response frame has been received. It is always non- NULL.
beacon_ies
the information elements from the last Beacon frame (implementation note: if hidden_beacon_bss is set this struct doesn't own the beacon_ies, but they're just pointers to the ones from the hidden_beacon_bss struct)
proberesp_ies
the information elements from the last Probe Response frame
hidden_beacon_bss
in case this BSS struct represents a probe response from a BSS that hides the SSID in its beacon, this points to the BSS struct that holds the beacon data. beacon_ies is still valid, of course, and points to the same data as hidden_beacon_bss->beacon_ies in that case.
signal
signal strength value (type depends on the wiphy's signal_type)
beacon_interval
the beacon interval as from the frame
capability
the capability field in host byte order
bssid[ETH_ALEN]
BSSID of the BSS
priv[0]
private area for driver use, has at least wiphy->bss_priv_size bytes

DESCRIPTION

This structure describes a BSS (which may also be a mesh network) for use in scan results and similar.

AUTHOR

Johannes Berg <johannes@sipsolutions.net>
Author.

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16