From: Dmytro Shytyi <dmytro@shytyi.net>
To: mptcp@lists.linux.dev
Cc: Dmytro Shytyi <dmytro@shytyi.net>
Subject: [RFC PATCH mptcp-next v8 5/7] Fix unxpctd val of subflow->map_seq(dscrd packet)
Date: Tue, 20 Sep 2022 14:52:41 +0200 [thread overview]
Message-ID: <20220920125243.2880-6-dmytro@shytyi.net> (raw)
In-Reply-To: <20220920125243.2880-1-dmytro@shytyi.net>
Fix unexpected value of subflow->map_seq (discarded and after
retransmitted 2nd packet(1st after TFO)).
We use mptcp_gen_msk_ackseq_fasopen()
when we know this is the first chunk of data after TFO.
Signed-off-by: Dmytro Shytyi <dmytro@shytyi.net>
---
net/mptcp/options.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/mptcp/options.c b/net/mptcp/options.c
index 8852a13cfe62..8e937a422909 100644
--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -1212,6 +1212,11 @@ bool mptcp_incoming_options(struct sock *sk, struct sk_buff *skb)
mpext->dsn64 = 1;
mpext->mpc_map = 1;
mpext->data_fin = 0;
+
+ if (msk->is_mptfo) {
+ mptcp_gen_msk_ackseq_fastopen(msk, subflow, mp_opt);
+ mpext->data_seq = READ_ONCE(msk->ack_seq);
+ }
} else {
mpext->data_seq = mp_opt.data_seq;
mpext->subflow_seq = mp_opt.subflow_seq;
--
2.25.1
next prev parent reply other threads:[~2022-09-20 12:52 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-20 12:52 [RFC PATCH mptcp-next v8 0/7] mptcp: Fast Open Mechanism Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 1/7] add mptcp_stream_connect to protocol.h Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 2/7] add mptcp_setsockopt_fastopen Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 3/7] reuse tcp_sendmsg_fastopen() Dmytro Shytyi
2022-09-20 14:36 ` Paolo Abeni
2022-09-20 15:02 ` Matthieu Baerts
2022-09-20 15:10 ` Dmytro Shytyi
2022-09-20 15:12 ` Paolo Abeni
2022-09-21 4:20 ` Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 4/7] mptfo variables for msk, options. Fix loop retrans Dmytro Shytyi
2022-09-20 14:56 ` Paolo Abeni
2022-09-21 4:15 ` Dmytro Shytyi
2022-09-20 12:52 ` Dmytro Shytyi [this message]
2022-09-20 16:04 ` [RFC PATCH mptcp-next v8 5/7] Fix unxpctd val of subflow->map_seq(dscrd packet) Paolo Abeni
2022-09-21 4:12 ` Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 6/7] add skb to mskq in tcp_fastopen_add_skb() Dmytro Shytyi
2022-09-20 16:02 ` Paolo Abeni
2022-09-21 4:09 ` Dmytro Shytyi
2022-09-20 12:52 ` [RFC PATCH mptcp-next v8 7/7] selftests: mptfo initiator/listener Dmytro Shytyi
2022-09-20 13:17 ` selftests: mptfo initiator/listener: Build Failure MPTCP CI
2022-09-20 14:40 ` selftests: mptfo initiator/listener: Tests Results MPTCP CI
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