From: Huang Xiaodong (xdhuang_at_eyou.com)
Date: 2002-09-09 13:56:25 UTC
Hi,
Any one can help me explain in detail each variable of this structure?
/* HFA384X RX frame descriptor */
u16 status; /* HFA384X_RX_STATUS_ flags */ What does it mean?
u32 time; /* timestamp, 1 microsecond resolution */ Whose time, HostAP or
Client?
u8 silence; /* 27 .. 154; seems to be 0 */ What's the measure
unit?
u8 signal; /* 27 .. 154 */ What's the measureunit?
u8 rxflow; /*What does it mean?*/ u32 reserved; /*May I use it?*/
I give two different frame sniffed by wlansniff.c
Sniffed frame: status 0700 mactime=1876270130
silence=11 signal=34 rate=20 rxflow=0
FC=0x00d4 ctrl::acknowledgement pver=0
dur=0
RA=00:02:2d:3c:9d:b5
data: 8a 35 59 e6 61 e3 ea b5 01 5a 5d 62 d6 70 32 82 ff 5e 93 49
aa 21 be 6f b2 d7 14 6c 88 f6 0c 04 30 4f 2f a6 03 ea 4a 5a a8 6e
3c 83 56 a7 ed 87 ac a8 eb c8 fb 63 ed 04 31 a6 7f a2 c0 89 5a b7
ca 0c c6 c4 bb 56 23 a7 07 f2 6a 30 7e 2e a5 02 40 94 6a 34 13 d9
...
...
Sniffed frame: status 0700 mactime=1225814757
silence=7 signal=32 rate=20 rxflow=0
FC=0x0040 mgmt::probe_request pver=0
dur=0 frag#=0 seq#=1733
DA=ff:ff:ff:ff:ff:ff SA=00:02:2d:03:b5:4d BSSID=ff:ff:ff:ff:ff:ff
Probe request frame body:
ElemID #0 (Service Set Identify (SSID)):
len=15 576176656c616e204e6574776f726b = Wavelan Network
ElemID #1 (Supported rates):
len=4 02040b16 = (Mbit/s) BSSBasicRateSet: Others: 1 2 5.5 11
Thanks in advance.
Huang Xiaodong
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