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([43.224.245.180]) by smtp.gmail.com with ESMTPSA id n14sm2458225pjm.5.2021.09.09.04.51.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Sep 2021 04:51:35 -0700 (PDT) From: Geliang Tang To: mptcp@lists.linux.dev, geliangtang@gmail.com Cc: Geliang Tang Subject: [PATCH mptcp-next v2 9/9] DO-NOT-MERGE: mptcp: mp_fail test Date: Thu, 9 Sep 2021 19:51:11 +0800 Message-Id: <5afb788b507a63f31f390c512fb5eedb464dd01e.1631188109.git.geliangtang@xiaomi.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Geliang Tang ./mptcp_join.sh -Cf Signed-off-by: Geliang Tang --- net/mptcp/protocol.c | 9 +++++++++ .../testing/selftests/net/mptcp/mptcp_join.sh | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 7036c78ccef2..10d15e93d70b 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1296,6 +1296,8 @@ static void mptcp_update_infinite_mapping(struct mptc= p_sock *msk, struct mptcp_e __mptcp_do_infinite(msk); } =20 +static int j; + static int mptcp_sendmsg_frag(struct sock *sk, struct sock *ssk, struct mptcp_data_frag *dfrag, struct mptcp_sendmsg_info *info) @@ -1430,6 +1432,13 @@ static int mptcp_sendmsg_frag(struct sock *sk, struc= t sock *ssk, mptcp_update_data_checksum(skb, copy); if (READ_ONCE(msk->snd_infinite_mapping_enable)) mptcp_update_infinite_mapping(msk, mpext); + + pr_debug("%s j=3D%d", __func__, j++); + if (j =3D=3D 20) + skb->data_len =3D 1; + if (j > 40) + j =3D 0; + mptcp_subflow_ctx(ssk)->rel_write_seq +=3D copy; return copy; } diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testin= g/selftests/net/mptcp/mptcp_join.sh index fe0c8f3164a7..38663f6373b8 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -977,6 +977,24 @@ chk_link_usage() =20 subflows_tests() { + # 1 subflow + reset + ip netns exec $ns1 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl limits 0 2 + run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow + chk_join_nr "1 subflow" 0 0 0 + + exit + + # multiple subflows + reset + ip netns exec $ns1 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl limits 0 2 + ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow + ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow + run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow + chk_join_nr "multiple subflows" 2 2 2 + reset run_tests $ns1 $ns2 10.0.1.1 chk_join_nr "no JOIN" "0" "0" "0" --=20 2.31.1