From: Davide Caratti <dcaratti@redhat.com>
To: Geliang Tang <geliangtang@gmail.com>
Cc: Mat Martineau <mathew.j.martineau@linux.intel.com>,
Geliang Tang <geliang.tang@suse.com>,
MPTCP Upstream <mptcp@lists.linux.dev>
Subject: Re: [PATCH mptcp-next v7 8/8] DO-NOT-MERGE: mptcp: mp_fail test
Date: Tue, 19 Oct 2021 10:29:00 +0200 [thread overview]
Message-ID: <YW6BzNwiyR9i8KSQ@dcaratti.users.ipa.redhat.com> (raw)
In-Reply-To: <CA+WQbwt4dk5vQyoPgxv7=ctsaNetcbt855Md+SL6juFZcLUPgA@mail.gmail.com>
On Mon, Oct 18, 2021 at 11:03:13PM -0400, Geliang Tang wrote:
> Mat Martineau <mathew.j.martineau@linux.intel.com> 于2021年10月18日周一 下午8:50写道：
> >
> > On Mon, 18 Oct 2021, Geliang Tang wrote:
> >
> Hi Davide,
>
> Could you please share your test script to me? I'll try to use it to
> write a new selttest.
I had a script that used TC flower and gact + pedit + csum actions to flip the 'PSH'
bit in the TCP header, I promised myself to change it to corrupt the DSS option.
The problem with this approach is, we can't assume that the DSS option has a fixed
offset from the IP header. So, the test might start corrupting other options that
are not MPTCP. Maybe using eBPF, using something like what Matteo did in the
past [1], we have more luck ?
[1] https://developers.redhat.com/blog/2018/12/03/network-debugging-with-ebpf#how_ebpf_can_help
--
davide
next prev parent reply other threads:[~2021-10-19 8:29 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-18 4:33 [PATCH mptcp-next v7 0/8] The infinite mapping support Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 1/8] mptcp: don't send RST for single subflow Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 2/8] mptcp: add the fallback check Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 3/8] mptcp: track and update contiguous data status Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 4/8] mptcp: infinite mapping sending Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 5/8] mptcp: infinite mapping receiving Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 6/8] mptcp: add mib for infinite map sending Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 7/8] selftests: mptcp: add infinite map mibs check Geliang Tang
2021-10-18 4:33 ` [PATCH mptcp-next v7 8/8] DO-NOT-MERGE: mptcp: mp_fail test Geliang Tang
2021-10-19 0:50 ` Mat Martineau
2021-10-19 3:03 ` Geliang Tang
2021-10-19 8:29 ` Davide Caratti [this message]
2021-10-20 10:39 ` Matthieu Baerts
2021-10-20 11:33 ` Davide Caratti
2021-10-20 14:49 ` Matthieu Baerts
2021-10-21 9:17 ` Geliang Tang
2021-10-21 9:19 ` Davide Caratti
2021-10-21 12:51 ` Matthieu Baerts
2021-10-22 7:37 ` Geliang Tang
2021-10-22 11:25 ` Matthieu Baerts
2021-10-25 7:59 ` Davide Caratti
2021-10-19 23:44 ` Mat Martineau
2021-10-21 6:10 ` Geliang Tang
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