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authorPeter Krystad <peter.krystad@linux.intel.com>2020-03-27 14:48:40 -0700
committerDavid S. Miller <davem@davemloft.net>2020-03-29 22:14:48 -0700
commitec3edaa7ca6ce02f3ced3e28d6bb322d7e776497 (patch)
tree7d8d1f43c04c2fde77c070e9ced523212d8b3763 /include/net
parentf296234c98a8fcec94eec80304a873f635d350ea (diff)
downloadlinux-ec3edaa7ca6ce02f3ced3e28d6bb322d7e776497.tar.gz
mptcp: Add handling of outgoing MP_JOIN requests
Subflow creation may be initiated by the path manager when the primary connection is fully established and a remote address has been received via ADD_ADDR. Create an in-kernel sock and use kernel_connect() to initiate connection. Passive sockets can't acquire the mptcp socket lock at subflow creation time, so an additional list protected by a new spinlock is used to track the MPJ subflows. Such list is spliced into conn_list tail every time the msk socket lock is acquired, so that it will not interfere with data flow on the original connection. Data flow and connection failover not addressed by this commit. Co-developed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Florian Westphal <fw@strlen.de> 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: Peter Krystad <peter.krystad@linux.intel.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/mptcp.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/mptcp.h b/include/net/mptcp.h
index a4aea0e4addc..b648fa20eec8 100644
--- a/include/net/mptcp.h
+++ b/include/net/mptcp.h
@@ -46,6 +46,8 @@ struct mptcp_out_options {
u8 backup;
u32 nonce;
u64 thmac;
+ u32 token;
+ u8 hmac[20];
struct mptcp_ext ext_copy;
#endif
};