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authorPeter Krystad <peter.krystad@linux.intel.com>2020-01-21 16:56:18 -0800
committerDavid S. Miller <davem@davemloft.net>2020-01-24 13:44:07 +0100
commitcec37a6e41aae7bf3df9a3da783380a4d9325fd8 (patch)
treed4019305db6e52408252d9b14a566f0199c3bc85 /include/linux/tcp.h
parent2303f994b3e187091fd08148066688b08f837efc (diff)
mptcp: Handle MP_CAPABLE options for outgoing connections
Add hooks to tcp_output.c to add MP_CAPABLE to an outgoing SYN request, to capture the MP_CAPABLE in the received SYN-ACK, to add MP_CAPABLE to the final ACK of the three-way handshake. Use the .sk_rx_dst_set() handler in the subflow proto to capture when the responding SYN-ACK is received and notify the MPTCP connection layer. Co-developed-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Co-developed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Peter Krystad <peter.krystad@linux.intel.com> Signed-off-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/tcp.h')
-rw-r--r--include/linux/tcp.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 877947475814..e9ee06d887fa 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -137,6 +137,9 @@ struct tcp_request_sock {
const struct tcp_request_sock_ops *af_specific;
u64 snt_synack; /* first SYNACK sent time */
bool tfo_listener;
+#if IS_ENABLED(CONFIG_MPTCP)
+ bool is_mptcp;
+#endif
u32 txhash;
u32 rcv_isn;
u32 snt_isn;