133 lines
3.5 KiB
Go
133 lines
3.5 KiB
Go
package capture
|
|
|
|
import (
|
|
"encoding/binary"
|
|
"fmt"
|
|
"time"
|
|
|
|
"github.com/bdlm/log"
|
|
|
|
"dev.sum7.eu/genofire/wifictld-analyzer/data"
|
|
)
|
|
|
|
var DEBUG = false
|
|
|
|
// SocketMSGType kind of packages
|
|
type SocketMSGType uint32
|
|
|
|
const (
|
|
SocketMSGTypeRequest SocketMSGType = (1 << 0)
|
|
SocketMSGTypeResponse SocketMSGType = (1 << 1)
|
|
SocketMSGTypeClient SocketMSGType = (1 << 2)
|
|
SocketMSGTypeStats SocketMSGType = (1 << 3)
|
|
)
|
|
|
|
func (a SocketMSGType) Is(b SocketMSGType) bool {
|
|
if DEBUG {
|
|
log.Debugf("SocketType: %x & %x = %x -> %t", a, b, (a & b), (a&b) > 0)
|
|
}
|
|
return (a & b) > 0
|
|
}
|
|
|
|
// SocketMSG package of wifictld format
|
|
type SocketMSG struct {
|
|
Types SocketMSGType `json:"types"`
|
|
Client *WifiClient `json:"client,omitempty"`
|
|
}
|
|
|
|
func NewSocketMSG(obj []byte) (*SocketMSG, error) {
|
|
msg := &SocketMSG{}
|
|
if err := msg.Unmarshal(obj); err != nil {
|
|
return nil, err
|
|
}
|
|
return msg, nil
|
|
}
|
|
|
|
func (msg *SocketMSG) Marshal() ([]byte, error) {
|
|
obj := make([]byte, MaxDataGramSize)
|
|
pos := 0
|
|
|
|
binary.BigEndian.PutUint32(obj[pos:(pos+4)], uint32(msg.Types))
|
|
pos += 4
|
|
|
|
if msg.Types.Is(SocketMSGTypeClient) {
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[0]
|
|
pos++
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[1]
|
|
pos++
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[2]
|
|
pos++
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[3]
|
|
pos++
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[4]
|
|
pos++
|
|
obj[pos] = msg.Client.Addr.HardwareAddr[5]
|
|
pos++
|
|
binary.BigEndian.PutUint32(obj[pos:(pos+4)], uint32(msg.Client.Time.Unix()))
|
|
pos += 4
|
|
binary.BigEndian.PutUint16(obj[pos:(pos+2)], msg.Client.TryProbe)
|
|
pos += 2
|
|
binary.BigEndian.PutUint16(obj[pos:(pos+2)], msg.Client.TryAuth)
|
|
pos += 2
|
|
if msg.Client.Connected {
|
|
obj[pos] = byte(1)
|
|
}
|
|
pos++
|
|
if msg.Client.Authed {
|
|
obj[pos] = byte(1)
|
|
}
|
|
pos++
|
|
binary.BigEndian.PutUint16(obj[pos:(pos+2)], msg.Client.FreqHighest)
|
|
pos += 2
|
|
binary.BigEndian.PutUint16(obj[pos:(pos+2)], uint16(msg.Client.SignalLowFreq))
|
|
pos += 2
|
|
binary.BigEndian.PutUint16(obj[pos:(pos+2)], uint16(msg.Client.SignalHighFreq))
|
|
//pos += 2
|
|
}
|
|
|
|
return obj, nil
|
|
}
|
|
|
|
func (msg *SocketMSG) Unmarshal(obj []byte) error {
|
|
if DEBUG {
|
|
log.Debugf("hex unmarshal: %x", obj)
|
|
}
|
|
|
|
pos := 0
|
|
|
|
msg.Types = SocketMSGType(binary.BigEndian.Uint32(obj[pos:(pos + 4)]))
|
|
pos += 4
|
|
|
|
if msg.Types.Is(SocketMSGTypeClient) {
|
|
msg.Client = &WifiClient{
|
|
Addr: data.HardwareAddr{HardwareAddr: obj[pos:(pos + 6)]},
|
|
Time: time.Unix(int64(binary.BigEndian.Uint32(obj[(pos+6):(pos+10)])), 0),
|
|
TryProbe: binary.BigEndian.Uint16(obj[(pos + 10):(pos + 12)]),
|
|
TryAuth: binary.BigEndian.Uint16(obj[(pos + 12):(pos + 14)]),
|
|
Connected: (obj[(pos+14)] == 1),
|
|
Authed: (obj[(pos+15)] == 1),
|
|
FreqHighest: binary.BigEndian.Uint16(obj[(pos + 16):(pos + 18)]),
|
|
SignalLowFreq: int16(binary.BigEndian.Uint16(obj[(pos + 18):(pos + 20)])),
|
|
SignalHighFreq: int16(binary.BigEndian.Uint16(obj[(pos + 20):(pos + 22)])),
|
|
}
|
|
//pos += 22
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (msg *SocketMSG) String() string {
|
|
answer := ""
|
|
|
|
if msg.Types.Is(SocketMSGTypeRequest) {
|
|
answer += "request "
|
|
}
|
|
if msg.Types.Is(SocketMSGTypeResponse) {
|
|
answer += "response "
|
|
}
|
|
if msg.Types.Is(SocketMSGTypeClient) {
|
|
answer += fmt.Sprintf("client(mac=%s freq=%d ssi_l=%d ssi_h=%d tprobe=%d tauth=%d authed=%v time=%s) ", msg.Client.Addr, msg.Client.FreqHighest, msg.Client.SignalLowFreq, msg.Client.SignalHighFreq, msg.Client.TryProbe, msg.Client.TryAuth, msg.Client.Authed, msg.Client.Time.String())
|
|
}
|
|
|
|
return answer
|
|
}
|