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fix: checking udp layer decoding for dhcp6.spoof module

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This commit is contained in:
evilsocket 2018-01-25 18:05:03 +01:00
commit 47b3be1b74
1 changed files with 4 additions and 0 deletions
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4
modules/dhcp6_spoof.go
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@ -331,6 +331,10 @@ func (s *DHCP6Spoofer) onPacket(pkt gopacket.Packet) {
var err error var err error
udp := pkt.Layer(layers.LayerTypeUDP).(*layers.UDP) udp := pkt.Layer(layers.LayerTypeUDP).(*layers.UDP)
if udp == nil {
return
}
// we just got a dhcp6 packet? // we just got a dhcp6 packet?
if err = dhcp.UnmarshalBinary(udp.Payload); err == nil { if err = dhcp.UnmarshalBinary(udp.Payload); err == nil {
eth := pkt.Layer(layers.LayerTypeEthernet).(*layers.Ethernet) eth := pkt.Layer(layers.LayerTypeEthernet).(*layers.Ethernet)