tree 5792e6806284fb388783223e3d9cd2d9ae70fdaf
parent 6bce9d2ca65238d37890186bf41acd7f7d9a9820
author John Fastabend <john.fastabend@gmail.com> 1521403076 -0700
committer Daniel Borkmann <daniel@iogearbox.net> 1521490480 +0100

bpf: sockmap, add sample option to test apply_bytes helper

This adds an option to test the apply_bytes helper. This option lets
the user specify an int on the command line specifying how much data
each verdict should apply to.

When this is set a map entry is set with the bytes input by the user
and then the specified program --txmsg or --txmsg_redir will use the
value and set the applied data. If no other option is set then a
default --txmsg_apply program is run. This program will drop pkts
if an error is detected on the bytes map lookup. Useful to verify
the map lookup and apply helper are working and causing a hard
error if it is not.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>