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new: new WPS parsing capabilities and wifi.show.wps command

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evilsocket 2019-01-27 14:52:59 +01:00
commit 50bf22af9c
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4 changed files with 224 additions and 23 deletions
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118
packets/dot11_wps.go Normal file
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package packets
import (
"bytes"
"encoding/binary"
"encoding/hex"
"fmt"
"net"
"github.com/google/gopacket"
"github.com/google/gopacket/layers"
)
type wpsAttrType int
const (
wpsHex wpsAttrType = 0
wpsStr wpsAttrType = 1
)
type wpsAttr struct {
Name string
Type wpsAttrType
Desc map[string]string
}
var (
wpsSignatureBytes = []byte{0x00, 0x50, 0xf2, 0x04}
wpsAttributes = map[uint16]wpsAttr{
0x104A: wpsAttr{Name: "Version", Desc: map[string]string{
"10": "1.0",
"11": "1.1",
}},
0x1044: wpsAttr{Name: "State", Desc: map[string]string{
"01": "Not Configured",
"02": "Configured",
}},
0x1057: wpsAttr{Name: "AP Setup Locked"},
0x1041: wpsAttr{Name: "Selected Registrar"},
0x1012: wpsAttr{Name: "Device Password ID"},
0x1053: wpsAttr{Name: "Selected Registrar Config Methods", Desc: map[string]string{
"0001": "USB",
"0002": "Ethernet",
"0004": "Label",
"0008": "Display",
"0010": "External NFC",
"0020": "Internal NFC",
"0040": "NFC Interface",
"0080": "Push Button",
"0100": "Keypad",
}},
0x103B: wpsAttr{Name: "Response Type"},
0x1047: wpsAttr{Name: "UUID-E"},
0x1021: wpsAttr{Name: "Manufacturer", Type: wpsStr},
0x1023: wpsAttr{Name: "Model Name", Type: wpsStr},
0x1024: wpsAttr{Name: "Model Number", Type: wpsStr},
0x1042: wpsAttr{Name: "Serial Number", Type: wpsStr},
0x1054: wpsAttr{Name: "Primary Device Type"},
0x1011: wpsAttr{Name: "Device Name", Type: wpsStr},
0x1008: wpsAttr{Name: "Config Methods"},
0x103C: wpsAttr{Name: "RF Bands"},
0x1045: wpsAttr{Name: "SSID", Type: wpsStr},
0x102D: wpsAttr{Name: "OS Version", Type: wpsStr},
0x1049: wpsAttr{Name: "Vendor Extension"},
}
)
func dot11ParseWPSData(data []byte) (ok bool, info map[string]string) {
info = map[string]string{}
size := len(data)
for offset := 0; offset < size; {
tagId := binary.BigEndian.Uint16(data[offset:])
offset += 2
tagLen := binary.BigEndian.Uint16(data[offset:])
offset += 2
tagData := data[offset : offset+int(tagLen)]
if attr, found := wpsAttributes[tagId]; found {
val := ""
if attr.Type == wpsStr {
val = string(tagData)
} else {
val = hex.EncodeToString(tagData)
}
if attr.Desc != nil {
if desc, found := attr.Desc[val]; found {
val = desc
}
}
info[attr.Name] = val
} else {
info[fmt.Sprintf("0x%X", tagId)] = hex.EncodeToString(tagData)
}
offset += int(tagLen)
}
return true, info
}
func Dot11ParseWPS(packet gopacket.Packet, dot11 *layers.Dot11) (ok bool, bssid net.HardwareAddr, info map[string]string) {
ok = false
for _, layer := range packet.Layers() {
if layer.LayerType() == layers.LayerTypeDot11InformationElement {
if dot11info, infoOk := layer.(*layers.Dot11InformationElement); infoOk && dot11info.ID == layers.Dot11InformationElementIDVendor {
if bytes.Equal(dot11info.OUI, wpsSignatureBytes) {
bssid = dot11.Address3
ok, info = dot11ParseWPSData(dot11info.Info)
return
}
}
}
}
return
}