Add NETWORK_UNSHARE_HELPER/bwrap wrapping to benchmark.test,
openssl_srtp.test, and sniffer-gen.sh to isolate network namespaces and
prevent port collisions when tests run concurrently. sniffer-gen.sh uses
--cap-add ALL (like dtls.test) since it runs tcpdump. ocsp-stapling.test
is excluded because it connects to external servers (login.live.com).
Correct the logic for checking if the client and server examples are compiled
in the test scripts. The previous logic was inverted, causing the tests to
always skip if the examples *were* compiled.
- I observed that client TX throughput < client RX throughput, but server TX
throughput > server RX throughput. Turns out this is just a typo in the
printing of the stats. The RX stat was being printed as the TX stat and vice-
versa.
- I added a note to scripts/benchmark.test about a 2 second sleep we do waiting
for the server to come up. If you were to time this script with the time
command, you'll see that 2 seconds in the result, which might be confusing
if you didn't realize the sleep was there.