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authorKishen Maloor <kishen.maloor@intel.com>2022-05-02 13:52:36 -0700
committerJakub Kicinski <kuba@kernel.org>2022-05-03 16:54:55 -0700
commit41b3c69bf9414375319290c59f198ff5c71d273f (patch)
tree51f6d54db529fca1d3e475b0f1d170b7ffc7a39d /net/mptcp
parent70c708e82606f842dc1bcf0943b8acae30c4088f (diff)
mptcp: expose server_side attribute in MPTCP netlink events
This change records the 'server_side' attribute of MPTCP_EVENT_CREATED and MPTCP_EVENT_ESTABLISHED events to inform their recipient about the Client/Server role of the running MPTCP application. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/246 Acked-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Kishen Maloor <kishen.maloor@intel.com> Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp')
-rw-r--r--net/mptcp/pm_netlink.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index eeaa96bcae6c..a4430c576ce9 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -1985,6 +1985,9 @@ static int mptcp_event_created(struct sk_buff *skb,
if (err)
return err;
+ if (nla_put_u8(skb, MPTCP_ATTR_SERVER_SIDE, READ_ONCE(msk->pm.server_side)))
+ return -EMSGSIZE;
+
return mptcp_event_add_subflow(skb, ssk);
}