# meta l4proto { tcp, udp, sctp} @th,16,16 { 22, 23, 80 } __set%d test-inet 3 size 3 __set%d test-inet 0 element 00000006 : 0 [end] element 00000011 : 0 [end] element 00000084 : 0 [end] __set%d test-inet 3 size 3 __set%d test-inet 0 element 00001600 : 0 [end] element 00001700 : 0 [end] element 00005000 : 0 [end] inet test-inet input [ meta load l4proto => reg 1 ] [ lookup reg 1 set __set%d ] [ payload load 2b @ transport header + 2 => reg 1 ] [ lookup reg 1 set __set%d ] # meta l4proto tcp @th,16,16 { 22, 23, 80} __set%d test-inet 3 size 3 __set%d test-inet 0 element 00001600 : 0 [end] element 00001700 : 0 [end] element 00005000 : 0 [end] inet test-inet input [ meta load l4proto => reg 1 ] [ cmp eq reg 1 0x00000006 ] [ payload load 2b @ transport header + 2 => reg 1 ] [ lookup reg 1 set __set%d ] # @nh,8,8 255 inet test-inet input [ payload load 1b @ network header + 1 => reg 1 ] [ cmp eq reg 1 0x000000ff ] # @nh,8,16 0 inet test-inet input [ payload load 2b @ network header + 1 => reg 1 ] [ cmp eq reg 1 0x00000000 ] # @ll,0,1 1 inet test-inet input [ payload load 1b @ link header + 0 => reg 1 ] [ bitwise reg 1 = (reg=1 & 0x00000080 ) ^ 0x00000000 ] [ cmp eq reg 1 0x00000080 ] # @ll,0,8 and 0x80 eq 0x80 inet test-inet input [ payload load 1b @ link header + 0 => reg 1 ] [ bitwise reg 1 = (reg=1 & 0x00000080 ) ^ 0x00000000 ] [ cmp eq reg 1 0x00000080 ] # @ll,0,128 0xfedcba987654321001234567890abcde inet test-inet input [ payload load 16b @ link header + 0 => reg 1 ] [ cmp eq reg 1 0x98badcfe 0x10325476 0x67452301 0xdebc0a89 ]