This is a brute force sweep through the the WirelessLeiden 802.11 MIB.
Think IEEE 90% fat-free version. Much more useful on first inspection,
but much of the information here needs data from the driver internals
to be meaningful.

Assumptions:-
 - Most stats are per-interface.
 - ifIndex maps onto if_index the way it does in net-snmp's mibII module
   for BSD-derived kernels.

--light80211MIB(1.3.6.1.4.1.18003.2.1)
  |
  +--light80211(1)
  |  |
  |  +--l80211IfaceTable(1)
  |  |  |
  |  |  +--l80211IfaceEntry(1) [ifIndex]
  |  |     |
  |  |     +-- rwn Bits          l80211IfaceFlags(1)
if_flags
  |  |     +-- r-n SSIDString    l80211IfaceCurrentSSID(2)
ieee80211com->ic_bss->ni_bssid
  |  |     +-- rwn SSIDString    l80211IfaceDesiredSSID(3)
ieee80211com->ic_des_bssid or ic_des_essid depends on IEEE80211_F_DESBSSID
in ic_flags.
  |  |     +-- r-n MacAddress    l80211IfaceCurrentBSSID(4)
get from arpcom (ether layer)
  |  |     +-- rwn Enumeration   l80211IfaceWEPStatus(5)
IEEE80211_IOC_WEP 
  |  |     +-- rwn RowPointer    l80211IfaceWEPtxkey(6)
index in WEPTable, see below
  |  |     +-- rwn Enumeration   l80211IfaceAuthMode(7)
IEEE80211_IOC_AUTHMODE
  |  |     +-- rwn DisplayString l80211IfaceStationName(8)
WI_RID_NODENAME
  |  |     +-- rwn Integer32     l80211IfaceChannel(9)
First set in ic_chan_active
  |  |     +-- rwn Enumeration   l80211IfacePowersaveMode(10)
IEEE80211_IOC_POWERSAVE
  |  |     +-- rwn Integer32     l80211IfacePowersaveSleep(11)
IEEE80211_IOC_POWERSAVESLEEP
  |  |     +-- rwn Integer32     l80211IfaceRTSThreshold(12)
IEEE80211_IOC_RTSTHRESHOLD
  |  |     +-- rwn PortType      l80211IfacePortType(13)
WI_RID_PORTTYPE but not closely
  |  |     +-- rwn EWMAConst     l80211IfaceEWMAConstBW(14)
Unsure -- need to check their implementation
  |  |     +-- rwn EWMAConst     l80211IfaceEWMAConstSNQ(15)
Unsure -- need to check their implementation
  |  |     +-- rwn Integer32     l80211IfaceCacheTimeout(16)
Looks like this was used for pulling the WICACHE before it got depracated.
  |  |
  |  +--l80211HostAPSSIDTable(2)
  |  |  |
  |  |  +--l80211HostAPSSIDEntry(1) [ifIndex,l80211HostAPSSIDIndex]
  |  |     |
  |  |     +-- --- Integer32  l80211HostAPSSIDIndex(1)
  |  |     +-- rwn SSIDString l80211HostAPSSIDString(2)
ic_node enumeration? Need input from Sam here.
  |  |
  |  +--l80211WEPTable(3)
  |  |  |
  |  |  +--l80211WEPEntry(1) [ifIndex,l80211WEPIndex]
  |  |     |
  |  |     +-- --- Integer32 l80211WEPIndex(1)
  |  |     +-- rwn WEPKey    l80211WEPKey(2)
ic_nw_keys[] enumeration
  |  |
  |  +--l80211StaTable(4)
  |     |
  |     +--l80211StaEntry(1) [ifIndex,l80211StaIndex]
Could be from WICACHE; but documented as coming from hostap.
  |        |
  |        +-- --- Integer32                 l80211StaIndex(1)
Dynamically generated according to position when the ieee80211_node
structure gets pulled. We don't actually support this yet.
  |        +-- r-n MacAddress                l80211StaMAC(2)
ni_macaddr
  |        +-- r-n Counter32                 l80211StaInPkts(3)
Not currently measured per-host
  |        +-- r-n Counter32                 l80211StaInBytes(4)
Not currently measured per-host
  |        +-- r-n Counter32                 l80211StaOutPkts(5)
Not currently measured per-host
  |        +-- r-n Counter32                 l80211StaOutBytes(6)
Not currently measured per-host
  |        +-- r-n EWMABandwidth             l80211StaAvgInBandwidth(7)
  |        +-- r-n EWMABandwidth             l80211StaAvgOutBandwidth(8)
  |        +-- r-n EWMADevBandwidth          l80211StaDevInBandwidth(9)
  |        +-- r-n EWMADevBandwidth          l80211StaDevOutBandwidth(10)
Calculated from l80211IfaceEWMAConstBW, not currently measured
  |        +-- r-n EWMASignalNoiseQuality    l80211StaAvgSignal(11)
  |        +-- r-n EWMASignalNoiseQuality    l80211StaAvgNoise(12)
  |        +-- r-n EWMASignalNoiseQuality    l80211StaAvgQuality(13)
  |        +-- r-n EWMADevSignalNoiseQuality l80211StaDevSignal(14)
  |        +-- r-n EWMADevSignalNoiseQuality l80211StaDevNoise(15)
  |        +-- r-n EWMADevSignalNoiseQuality l80211StaDevQuality(16)
Calculated from l80211IfaceEWMAConstSNQ, not currently measured per-host
  |        +-- r-n Counter32                 l80211StaNrAssocs(17)
Not currently measured
  |        +-- r-n TimeTicks                 l80211StaLastAssoc(18)
ni_rstamp on assoc event, not currently recorded
  |        +-- r-n TimeTicks                 l80211StaLastDisassoc(19)
ni_rstamp on disassoc event, not currently recorded
  |        +-- r-n TruthValue                l80211StaAssociated(20)
No means of currently measuring this on a per-STA basis
  |        +-- r-n TruthValue                l80211StaAuthenticated(21)
No means of currently measuring this on a per-STA basis
  |        +-- rwn TruthValue                l80211StaDoDelete(22)
No means of currently measuring this on a per-STA basis
  |        +-- rwn TruthValue                l80211StaDoDisassoc(23)
No means of currently measuring this on a per-STA basis
  |
  +--light80211MIBConformance(2)
     |
     +--light80211MIBCompliances(1)
     |  |
     |  +--light80211MIBFullCompliance(1)
     |
     +--light80211MIBGroups(2)
        |
        +--ifaceGroup(1)
        |
        +--ssidGroup(2)
        |
        +--wepGroup(3)
        |
        +--staGroup(4)