tree 36ade8f84b5793ed45b23804ea67f2d39f0c9fff
parent 92d30f5bcfb1f3ecc51e0b3d10b598a0bf3614b8
author Hanno Becker <hanno.becker@arm.com> 1558688862 +0100
committer Hanno Becker <hanno.becker@arm.com> 1559574470 +0100

Add bad_cid option UDP proxy to insert unexpected CID records

This commit adds the command line option 'bad_cid' to the UDP proxy
`./programs/test/udp_proxy`. It takes a non-negative integral value N,
which if not 0 has the effect of duplicating every 1:N CID records
and modifying the CID in the first copy sent.

This is to exercise the stacks documented behaviour on receipt
of unexpected CIDs.

It is important to send the record with the unexpected CID first,
because otherwise the packet would be dropped already during
replay protection (the same holds for the implementation of the
existing 'bad_ad' option).