On Fri, Dec 15, 2023 at 02:36:25AM +0000, Dmitry Safonov wrote:
Check that a rare functionality of TCP named self-connect works with TCP-AO. This "under the cover" also checks TCP simultaneous connect (TCP_SYN_RECV socket state), which would be harder to check other ways.
In order to verify that it's indeed TCP simultaneous connect, check the counters TCPChallengeACK and TCPSYNChallenge.
Sample of the output:
# ./self-connect_ipv6 1..4 # 1738[lib/setup.c:254] rand seed 1696451931 TAP version 13 ok 1 self-connect(same keyids): connect TCPAOGood 0 => 24 ok 2 self-connect(different keyids): connect TCPAOGood 26 => 50 ok 3 self-connect(restore): connect TCPAOGood 52 => 97 ok 4 self-connect(restore, different keyids): connect TCPAOGood 99 => 144 # Totals: pass:4 fail:0 xfail:0 xpass:0 skip:0 error:0
Signed-off-by: Dmitry Safonov dima@arista.com
Tested-by: Hangbin Liu liuhangbin@gmail.com