From: Matthieu Baerts <matthieu.baerts@tessares.net>
To: mptcp@lists.linux.dev
Cc: Geliang Tang <geliangtang@gmail.com>
Subject: [RESEND] [MPTCP][PATCH mptcp-next 3/3] mptcp: send out MP_FAIL when data checksum fail
Date: Wed, 26 May 2021 18:08:13 +0200 [thread overview]
Message-ID: <f46dabaf1055b87b5613b126372d9e506c178264.1620282930.git.geliangtang@gmail.com> (raw)
Message-ID: <20210526160813.L4l1DzKShRoGq0ToaN7HN8-Qkz3M01gh0eYSeqKMCtQ@z> (raw)
In-Reply-To: <20210526160813.4160315-1-matthieu.baerts@tessares.net>
From: Geliang Tang <geliangtang@gmail.com>
When a bad checksum is detected, send out the MP_FAIL suboption.
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
---
net/mptcp/subflow.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 659b8842ae3b..efd84ff61015 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -906,6 +906,8 @@ static enum mapping_status validate_data_csum(struct sock *ssk, struct sk_buff *
csum = csum_partial(&header, sizeof(header), subflow->map_data_csum);
if (unlikely(csum_fold(csum))) {
MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_DSSCSUMERR);
+ subflow->send_mp_fail = 1;
+ subflow->fail_seq = subflow->map_seq;
return subflow->mp_join ? MAPPING_INVALID : MAPPING_DUMMY;
}
next prev parent reply other threads:[~2021-05-26 16:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-06 6:39 [MPTCP][PATCH mptcp-next 0/3] MP_FAIL support Geliang Tang
2021-05-06 6:39 ` [MPTCP][PATCH mptcp-next 1/3] mptcp: MP_FAIL suboption sending Geliang Tang
2021-05-06 6:39 ` [MPTCP][PATCH mptcp-next 2/3] mptcp: MP_FAIL suboption receiving Geliang Tang
2021-05-06 6:39 ` Geliang Tang [this message]
2021-05-08 0:54 ` [MPTCP][PATCH mptcp-next 3/3] mptcp: send out MP_FAIL when data checksum fail Mat Martineau
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2021-05-08 0:44 ` [MPTCP][PATCH mptcp-next 2/3] mptcp: MP_FAIL suboption receiving Mat Martineau
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2021-05-26 16:08 ` [RESEND] [MPTCP][PATCH mptcp-next 1/3] mptcp: MP_FAIL suboption sending Matthieu Baerts
2021-05-26 16:08 [RESEND] [PATCH 0/8] Please ignore: resending some patches for patchwork.kernel.org Matthieu Baerts
2020-09-24 14:35 ` [MPTCP] [RFC PATCH 2/4] tcp: move selected mptcp helpers to tcp.h/mptcp.h Florian Westphal
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2020-09-24 14:35 ` [MPTCP] [RFC PATCH 4/4] tcp: parse tcp options contained in reset packets Florian Westphal
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2020-10-02 15:45 ` [MPTCP] [RFC mptpcp-next] mptcp: add ooo prune support Florian Westphal
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2020-11-05 17:01 ` [MPTCP] [PATCH MPTCP 1/5] tcp: make two mptcp helpers available to tcp stack Florian Westphal
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
2020-11-05 17:01 ` [MPTCP] [PATCH MPTCP 5/5] mptcp: send fastclose if userspace closes socket with unread data Florian Westphal
2021-05-26 16:08 ` [RESEND] " Matthieu Baerts
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