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netsniff-ng, trafgen: drop privileges if wished
[netsniff-ng.git]
/
src
/
examples
/
bpfc
/
ipv4_tcp_ssh.bpf
blob
9d5e968d0042fbc8c66e13ab7eb7f79c6e5c899d
1
ldh [12]
2
jeq #0x800, Cont1, Drop
3
Cont1: ldb [23]
4
jeq #0x6, Cont2, Drop
5
Cont2: ldh [20]
6
jset #0x1fff, Drop, Cont3
7
Cont3: ldxb 4 * ([14] & 0xf)
8
ldh [x + 14]
9
jeq #0x16, Keep, Cont4
10
Cont4: ldh [x + 16]
11
jeq #0x16, Keep, Drop
12
Keep: ret #0xffffffff
13
Drop: ret #0