diff options
Diffstat (limited to 'net/mptcp/subflow.c')
| -rw-r--r-- | net/mptcp/subflow.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 3d346572d4c9..a4cc4591bd4e 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -173,6 +173,12 @@ again: subflow_req->token = mp_opt.token; subflow_req->remote_nonce = mp_opt.nonce; subflow_req->msk = subflow_token_join_request(req, skb); + + if (unlikely(req->syncookie) && subflow_req->msk) { + if (mptcp_can_accept_new_subflow(subflow_req->msk)) + subflow_init_req_cookie_join_save(subflow_req, skb); + } + pr_debug("token=%u, remote_nonce=%u msk=%p", subflow_req->token, subflow_req->remote_nonce, subflow_req->msk); } @@ -207,6 +213,14 @@ int mptcp_subflow_init_cookie_req(struct request_sock *req, subflow_req->mp_capable = 1; subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq - 1; + } else if (mp_opt.mp_join && listener->request_mptcp) { + if (!mptcp_token_join_cookie_init_state(subflow_req, skb)) + return -EINVAL; + + if (mptcp_can_accept_new_subflow(subflow_req->msk)) + subflow_req->mp_join = 1; + + subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq - 1; } return 0; |