[PATCH mptcp-next v2 02/21] mptcp: store remote id from MP_JOIN SYN/ACK in local ctx

Kishen Maloor posted 21 patches 4 months, 1 week ago
Maintainers: "David S. Miller" <davem@davemloft.net>, Matthieu Baerts <matthieu.baerts@tessares.net>, Mat Martineau <mathew.j.martineau@linux.intel.com>, Jakub Kicinski <kuba@kernel.org>, Shuah Khan <shuah@kernel.org>
[PATCH mptcp-next v2 02/21] mptcp: store remote id from MP_JOIN SYN/ACK in local ctx
Posted by Kishen Maloor 4 months, 1 week ago
This change reads the addr id assigned to the remote endpoint
of a subflow from the MP_JOIN SYN/ACK message and stores it
in the related subflow context. The remote id was not being
captured prior to this change, and will now provide a consistent
view of remote endpoints and their ids as seen through netlink
events.

Signed-off-by: Kishen Maloor <kishen.maloor@intel.com>
---
 net/mptcp/subflow.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index b009d0f7fb77..b75b7b186d34 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -444,6 +444,7 @@ static void subflow_finish_connect(struct sock *sk, const struct sk_buff *skb)
 		subflow->backup = mp_opt.backup;
 		subflow->thmac = mp_opt.thmac;
 		subflow->remote_nonce = mp_opt.nonce;
+		subflow->remote_id = mp_opt.join_id;
 		pr_debug("subflow=%p, thmac=%llu, remote_nonce=%u backup=%d",
 			 subflow, subflow->thmac, subflow->remote_nonce,
 			 subflow->backup);
-- 
2.31.1