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Fri, 24 Jul 2026 08:06:32 -0700 (PDT) Received: from houminxi ([72.244.37.221]) by smtp.gmail.com with ESMTPSA id ada2fe7eead31-74ad32165f4sm7744810137.6.2026.07.24.08.06.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 Jul 2026 08:06:32 -0700 (PDT) From: Minxi Hou To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, aconole@redhat.com, echaudro@redhat.com, i.maximets@ovn.org, i.maximets@redhat.com, dev@openvswitch.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, horms@kernel.org, linux-kernel@vger.kernel.org, Minxi Hou Subject: [PATCH net-next v6 0/2] selftests/net/openvswitch: add SCTP flow key test Date: Fri, 24 Jul 2026 11:06:22 -0400 Message-ID: <20260724150624.3457427-1-houminxi@gmail.com> X-Mailer: git-send-email 2.55.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit v5 failed in NIPA: the kernel rejected the SCTP-keyed flow with EINVAL(22) in add_flow. Root cause: v5 installed flows containing sctp() via ovs-dpctl.py without registering OVS_KEY_ATTR_SCTP in its flow-string parse table, so the parser silently dropped the L4 key; the kernel mandates the SCTP key when ipv4.proto == IPPROTO_SCTP (match_validate() in flow_netlink.c) and returns -EINVAL. The parse-table entry was present in v1-v4 and was accidentally dropped in the v4->v5 respin. v6 splits the fix from the test so each patch stands on its own: patch 1 restores SCTP parsing in ovs-dpctl.py (the NIPA fix) with unit tests, patch 2 adds the SCTP flow key test (same goal as v5). Tested with vng on x86_64: all OVS selftests pass, including the new sctp_connect_v4. v6: - split into 2 patches: ovs-dpctl.py parse fix + shell test - restore OVS_KEY_ATTR_SCTP parse-table entry + unit tests (NIPA fix) - listener readiness via /proc/net/sctp/eps (ss needs sctp_diag) - add timeout 3 to socat clients (unidirectional connect hangs) - restart listeners with kill -TERM + kill -0 poll (wait can hang) v5: https://lore.kernel.org/netdev/20260723084203.3483560-1-houminxi@gmail.com/ - switch to socat per Kicinski; NIPA FAIL: EINVAL in add_flow (parse entry accidentally dropped in this respin) v4: https://lore.kernel.org/netdev/20260719162657.3263089-1-houminxi@gmail.com/ - rebase after ICMPv6 test merged; nc --sctp detection nit v3: https://lore.kernel.org/netdev/20260715015446.530018-1-houminxi@gmail.com/ - switch ncat -> nc with skip if nc lacks SCTP support v2: https://lore.kernel.org/netdev/20260707034718.2717982-1-houminxi@gmail.com/ - replace sleep after spawn with ovs_wait on listener stderr v1: https://lore.kernel.org/netdev/20260702090908.1253688-1-houminxi@gmail.com/ Minxi Hou (2): selftests/net/openvswitch: add SCTP flow key parsing to ovs-dpctl.py selftests/net/openvswitch: add SCTP flow key test .../selftests/net/openvswitch/openvswitch.sh | 121 ++++++++++++++++ .../selftests/net/openvswitch/ovs-dpctl.py | 129 ++++++++++++++++++ 2 files changed, 250 insertions(+) -- 2.55.0