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authorGeliang Tang <geliangtang@gmail.com>2021-06-22 12:25:20 -0700
committerDavid S. Miller <davem@davemloft.net>2021-06-22 14:36:01 -0700
commitdf377be38725ced628251c1a3b954ef932a5586e (patch)
treee0725441657f35da0aa427c5d1b521852d732e27 /net/mptcp/pm.c
parentbab6b88e056038f618b2fb977d95b05ad3da8d0c (diff)
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/pm.c')
-rw-r--r--net/mptcp/pm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c
index 9d00fa6d22e9..639271e09604 100644
--- a/net/mptcp/pm.c
+++ b/net/mptcp/pm.c
@@ -320,6 +320,7 @@ void mptcp_pm_data_init(struct mptcp_sock *msk)
WRITE_ONCE(msk->pm.addr_signal, 0);
WRITE_ONCE(msk->pm.accept_addr, false);
WRITE_ONCE(msk->pm.accept_subflow, false);
+ WRITE_ONCE(msk->pm.remote_deny_join_id0, false);
msk->pm.status = 0;
spin_lock_init(&msk->pm.lock);