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wifi module: fix on beacon parsing and multiple channel selection

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This commit is contained in:
Matrix86 2018-03-12 16:06:51 +01:00
commit 4726c2fc9d
4 changed files with 105 additions and 22 deletions
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17
packets/dot11.go
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@ -126,3 +126,20 @@ func Dot11IsDataFor(dot11 *layers.Dot11, station net.HardwareAddr) bool {
// packet going to this specific BSSID?
return bytes.Compare(dot11.Address1, station) == 0
}
func Dot11ParseDSSet(packet gopacket.Packet) (bool, int) {
channel := 0
found := false
for _, layer := range packet.Layers() {
info, ok := layer.(*layers.Dot11InformationElement)
if ok == true {
if info.ID == layers.Dot11InformationElementIDDSSet {
channel, _ = Dot11InformationElementIDDSSetDecode(info.Info)
found = true
break
}
}
}
return found, channel
}

8
packets/dot11_types.go
View file

@ -211,3 +211,11 @@ func Dot11InformationElementRSNInfoDecode(buf []byte) (rsn RSNInfo, err error) {
return
}
func Dot11InformationElementIDDSSetDecode(buf []byte) (channel int, err error) {
if err = canParse("DSSet.channel", buf, 1); err == nil {
channel = int(buf[0])
}
return
}