On Thu, Oct 15, 2020 at 3:49 PM Richard Haines <richard_c_haines@xxxxxxxxxxxxxx> wrote: > On Thu, 2020-10-15 at 12:28 +0200, Ondrej Mosnacek wrote: <snip> > Just a thought - have you tried running the server in one terminal > session and the client in another (I've plugged in your Fedora 32 > addresses): > > cd ...tests/sctp > echo 1 > /proc/sys/net/sctp/addip_enable > echo 1 > /proc/sys/net/sctp/addip_noauth_enable > runcon -t sctp_asconf_params_server_t ./sctp_asconf_params_server > 10.0.138.59 10.123.123.123 1035 > > cd ...tests/sctp > runcon -t sctp_asconf_deny_param_add_client_t > ./sctp_asconf_params_client 10.0.138.59 1035 Interesting... I just tried it a couple times and it's not behaving consistently - the first time I got "SCTP_PRIMARY_ADDR: Permission denied", then 'Dynamic Address Reconfiguration' twice in a row, then 7 times "SCTP_PRIMARY_ADDR: Permission denied", then 'Dynamic Address Reconfiguration' 5 times. and then again "SCTP_PRIMARY_ADDR: Permission denied". I tried (manually) different delays between starting the server and starting the client, but there didn't seem to be a pattern. -- Ondrej Mosnacek Software Engineer, Platform Security - SELinux kernel Red Hat, Inc.