diff options
| author | Geliang Tang <geliangtang@gmail.com> | 2021-06-22 22:25:20 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-23 00:36:01 +0300 |
| commit | df377be38725ced628251c1a3b954ef932a5586e (patch) | |
| tree | e0725441657f35da0aa427c5d1b521852d732e27 /net/mptcp/subflow.c | |
| parent | bab6b88e056038f618b2fb977d95b05ad3da8d0c (diff) | |
| download | linux-df377be38725ced628251c1a3b954ef932a5586e.tar.xz | |
mptcp: add deny_join_id0 in mptcp_options_received
This patch added a new flag named deny_join_id0 in struct
mptcp_options_received. Set it when MP_CAPABLE with the flag
MPTCP_CAP_DENYJOIN_ID0 is received.
Also add a new flag remote_deny_join_id0 in struct mptcp_pm_data. When the
flag deny_join_id0 is set, set this remote_deny_join_id0 flag.
In mptcp_pm_create_subflow_or_signal_addr, if the remote_deny_join_id0 flag
is set, and the remote address id is zero, stop this connection.
Suggested-by: Florian Westphal <fw@strlen.de>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/mptcp/subflow.c')
| -rw-r--r-- | net/mptcp/subflow.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index e9e8ce862218..d55f4ef736a5 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -408,6 +408,8 @@ static void subflow_finish_connect(struct sock *sk, const struct sk_buff *skb) if (mp_opt.csum_reqd) WRITE_ONCE(mptcp_sk(parent)->csum_enabled, true); + if (mp_opt.deny_join_id0) + WRITE_ONCE(mptcp_sk(parent)->pm.remote_deny_join_id0, true); subflow->mp_capable = 1; subflow->can_ack = 1; subflow->remote_key = mp_opt.sndr_key; |