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dhcp4d: fix panic when receiving unsupported requests

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This commit is contained in:
Michael Stapelberg 2018-10-22 18:39:25 +02:00
parent cfbf52db6e
commit c037bf9c5f
1 changed files with 3 additions and 0 deletions
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3
internal/dhcp4d/dhcp4d.go
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@ -158,6 +158,9 @@ func (h *Handler) canLease(reqIP net.IP, hwaddr string) int {
func (h *Handler) ServeDHCP(p dhcp4.Packet, msgType dhcp4.MessageType, options dhcp4.Options) dhcp4.Packet { func (h *Handler) ServeDHCP(p dhcp4.Packet, msgType dhcp4.MessageType, options dhcp4.Options) dhcp4.Packet {
reply := h.serveDHCP(p, msgType, options) reply := h.serveDHCP(p, msgType, options)
if reply == nil {
return nil // unsupported request
}
buf := gopacket.NewSerializeBuffer() buf := gopacket.NewSerializeBuffer()
opts := gopacket.SerializeOptions{ opts := gopacket.SerializeOptions{
ComputeChecksums: true, ComputeChecksums: true,