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| author |  Dmytro Shytyi <dmytro@shytyi.net>
| 2022-11-25 23:29:50 +0100 |
|---|---|---|
| committer |  Jakub Kicinski <kuba@kernel.org>
| 2022-11-29 20:24:25 -0800 |
| commit | dfc8d06030335a816d81aa92fe5d1f84d06998ad (patch) | |
| tree | 648fad954e673b0fc482d240987a2bf7ddb12457 /net/mptcp/subflow.c | |
| parent | mptcp: consolidate initial ack seq generation (diff) | |
| download | linux-dfc8d06030335a816d81aa92fe5d1f84d06998ad.tar.gz linux-dfc8d06030335a816d81aa92fe5d1f84d06998ad.tar.bz2 linux-dfc8d06030335a816d81aa92fe5d1f84d06998ad.zip | |
mptcp: implement delayed seq generation for passive fastopen
With fastopen in place, the first subflow socket is created before the
MPC handshake completes, and we need to properly initialize the sequence
numbers at MPC ACK reception.
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Dmytro Shytyi <dmytro@shytyi.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp/subflow.c')
| -rw-r--r-- | net/mptcp/subflow.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index eca4de08ca9c..cbeb7718f092 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -664,6 +664,9 @@ void mptcp_subflow_fully_established(struct mptcp_subflow_context *subflow, subflow_set_remote_key(msk, subflow, mp_opt); subflow->fully_established = 1; WRITE_ONCE(msk->fully_established, true); + + if (subflow->is_mptfo) + mptcp_fastopen_gen_msk_ackseq(msk, subflow, mp_opt); } static struct sock *subflow_syn_recv_sock(const struct sock *sk, @@ -779,7 +782,7 @@ create_child: /* with OoO packets we can reach here without ingress * mpc option */ - if (mp_opt.suboptions & OPTIONS_MPTCP_MPC) + if (mp_opt.suboptions & OPTION_MPTCP_MPC_ACK) mptcp_subflow_fully_established(ctx, &mp_opt); } else if (ctx->mp_join) { struct mptcp_sock *owner; |