Re: [PATCH net-next v5 1/2] selftests/net/openvswitch: add SCTP flow key test over IPv6

[Narcisa Vasile <narcisav.kernel@gmail.com>]

On Fri, Sep 18, 2026 at 10:46:46AM -0400, Minxi Hou wrote:
> The merged SCTP test covers only IPv4. The SCTP branch of the IPv6
> extractor (the proto=132 walk after parse_ipv6hdr) and the v6 side of
> the SCTP netlink validation (match_validate() requires the sctp() key
> whenever ipv6(proto=132) is matched) have no selftest coverage.
> 
> Add test_sctp_connect_v6 mirroring the v4 test: bare icmpv6() flows
> forward NS/NA, and ipv6(proto=132),sctp(dst=4443)/sctp(src=4443)
> flows gate the association in the same three phases (flows installed,
> removed, reinstalled). A keyless ipv6(proto=132) install must be
> refused with EINVAL, pinning the reject side of the match_validate()
> rule; without it a regression dropping the requirement would pass
> unnoticed. The refusal is asserted to be EINVAL specifically, not a
> parse error of the flow string. After the association succeeds the
> test also pushes a known payload across and waits for the listener
> to log it, proving the datapath carries the association's traffic
> end to end, not only its handshake. Skips when the sctp module is
> missing, socat lacks SCTP or IPv6 support, or IPv6 is unavailable;
> an association or payload failure with the flows installed fails
> the test.
> 
> Signed-off-by: Minxi Hou <houminxi@gmail.com>
> ---
>  .../selftests/net/openvswitch/openvswitch.sh  | 109 ++++++++++++++++++
>  1 file changed, 109 insertions(+)
> 
Reviewed-by: Narcisa Vasile <narcisav.kernel@gmail.com>