trafgen: moved cleanup into parser

[netsniff-ng-old.git] / src / examples / bpfc / ipv4_udp.bpf

ldh [12]                ; Load Ethernet type field
jeq #0x800, Cont, Drop  ; Check value against 0x800
Cont: ldb [23]          ; Load IP proto
jeq #0x11, Keep, Drop   ; Check against 0x11
Keep: ret #0xffffffff   ; Return packet
Drop: ret #0            ; Discard packet