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authorMat Martineau <mathew.j.martineau@linux.intel.com>2020-01-22 03:56:15 +0300
committerDavid S. Miller <davem@davemloft.net>2020-01-24 15:44:07 +0300
commitf870fa0b5768842cb4690c1c11f19f28b731ae6d (patch)
treec6681d139775fa1da79a1ba640a048b82d125a04 /net/ipv6/tcp_ipv6.c
parent23f4eacdd24a64e7792bdee7327d32876e14cd51 (diff)
downloadlinux-f870fa0b5768842cb4690c1c11f19f28b731ae6d.tar.xz
mptcp: Add MPTCP socket stubs
Implements the infrastructure for MPTCP sockets. MPTCP sockets open one in-kernel TCP socket per subflow. These subflow sockets are only managed by the MPTCP socket that owns them and are not visible from userspace. This commit allows a userspace program to open an MPTCP socket with: sock = socket(AF_INET, SOCK_STREAM, IPPROTO_MPTCP); The resulting socket is simply a wrapper around a single regular TCP socket, without any of the MPTCP protocol implemented over the wire. Co-developed-by: Florian Westphal <fw@strlen.de> Signed-off-by: Florian Westphal <fw@strlen.de> Co-developed-by: Peter Krystad <peter.krystad@linux.intel.com> Signed-off-by: Peter Krystad <peter.krystad@linux.intel.com> Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net> Co-developed-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Christoph Paasch <cpaasch@apple.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/tcp_ipv6.c')
-rw-r--r--net/ipv6/tcp_ipv6.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5b5260103b65..60068ffde1d9 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -2163,9 +2163,16 @@ int __init tcpv6_init(void)
ret = register_pernet_subsys(&tcpv6_net_ops);
if (ret)
goto out_tcpv6_protosw;
+
+ ret = mptcpv6_init();
+ if (ret)
+ goto out_tcpv6_pernet_subsys;
+
out:
return ret;
+out_tcpv6_pernet_subsys:
+ unregister_pernet_subsys(&tcpv6_net_ops);
out_tcpv6_protosw:
inet6_unregister_protosw(&tcpv6_protosw);
out_tcpv6_protocol: