35 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in subflow_req_destructor()  local
37 	pr_debug("subflow_req=%p", subflow_req);  in subflow_req_destructor()
39 	if (subflow_req->msk)  in subflow_req_destructor()
40 		sock_put((struct sock *)subflow_req->msk);  in subflow_req_destructor()
67 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in subflow_token_join_request()  local
72 	msk = mptcp_token_get_sock(sock_net(req_to_sk(req)), subflow_req->token);  in subflow_token_join_request()
83 	subflow_req->local_id = local_id;  in subflow_token_join_request()
85 	get_random_bytes(&subflow_req->local_nonce, sizeof(u32));  in subflow_token_join_request()
88 			      subflow_req->local_nonce,  in subflow_token_join_request()
89 			      subflow_req->remote_nonce, hmac);  in subflow_token_join_request()
91 	subflow_req->thmac = get_unaligned_be64(hmac);  in subflow_token_join_request()
97 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in __subflow_init_req()  local
99 	subflow_req->mp_capable = 0;  in __subflow_init_req()
100 	subflow_req->mp_join = 0;  in __subflow_init_req()
101 	subflow_req->msk = NULL;  in __subflow_init_req()
120 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in subflow_init_req()  local
124 	pr_debug("subflow_req=%p, listener=%p", subflow_req, listener);  in subflow_init_req()
144 		subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq;  in subflow_init_req()
147 			get_random_bytes(&subflow_req->local_key, sizeof(subflow_req->local_key));  in subflow_init_req()
148 		} while (subflow_req->local_key == 0);  in subflow_init_req()
151 			mptcp_crypto_key_sha(subflow_req->local_key,  in subflow_init_req()
152 					     &subflow_req->token,  in subflow_init_req()
153 					     &subflow_req->idsn);  in subflow_init_req()
154 			if (mptcp_token_exists(subflow_req->token)) {  in subflow_init_req()
158 				subflow_req->mp_capable = 1;  in subflow_init_req()
165 			subflow_req->mp_capable = 1;  in subflow_init_req()
170 		subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq;  in subflow_init_req()
171 		subflow_req->mp_join = 1;  in subflow_init_req()
172 		subflow_req->backup = mp_opt.backup;  in subflow_init_req()
173 		subflow_req->remote_id = mp_opt.join_id;  in subflow_init_req()
174 		subflow_req->token = mp_opt.token;  in subflow_init_req()
175 		subflow_req->remote_nonce = mp_opt.nonce;  in subflow_init_req()
176 		subflow_req->msk = subflow_token_join_request(req, skb);  in subflow_init_req()
178 		if (unlikely(req->syncookie) && subflow_req->msk) {  in subflow_init_req()
179 			if (mptcp_can_accept_new_subflow(subflow_req->msk))  in subflow_init_req()
180 				subflow_init_req_cookie_join_save(subflow_req, skb);  in subflow_init_req()
183 		pr_debug("token=%u, remote_nonce=%u msk=%p", subflow_req->token,  in subflow_init_req()
184 			 subflow_req->remote_nonce, subflow_req->msk);  in subflow_init_req()
193 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in mptcp_subflow_init_cookie_req()  local
210 		subflow_req->local_key = mp_opt.rcvr_key;  in mptcp_subflow_init_cookie_req()
215 		subflow_req->mp_capable = 1;  in mptcp_subflow_init_cookie_req()
216 		subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq - 1;  in mptcp_subflow_init_cookie_req()
218 		if (!mptcp_token_join_cookie_init_state(subflow_req, skb))  in mptcp_subflow_init_cookie_req()
221 		if (mptcp_can_accept_new_subflow(subflow_req->msk))  in mptcp_subflow_init_cookie_req()
222 			subflow_req->mp_join = 1;  in mptcp_subflow_init_cookie_req()
224 		subflow_req->ssn_offset = TCP_SKB_CB(skb)->seq - 1;  in mptcp_subflow_init_cookie_req()
419 	const struct mptcp_subflow_request_sock *subflow_req;  in subflow_hmac_valid()  local
423 	subflow_req = mptcp_subflow_rsk(req);  in subflow_hmac_valid()
424 	msk = subflow_req->msk;  in subflow_hmac_valid()
429 			      subflow_req->remote_nonce,  in subflow_hmac_valid()
430 			      subflow_req->local_nonce, hmac);  in subflow_hmac_valid()
508 	struct mptcp_subflow_request_sock *subflow_req;  in subflow_syn_recv_sock()  local
522 	subflow_req = mptcp_subflow_rsk(req);  in subflow_syn_recv_sock()
523 	fallback_is_fatal = tcp_rsk(req)->is_mptcp && subflow_req->mp_join;  in subflow_syn_recv_sock()
529 	if (subflow_req->mp_capable) {  in subflow_syn_recv_sock()
547 	} else if (subflow_req->mp_join) {  in subflow_syn_recv_sock()
550 		    !mptcp_can_accept_new_subflow(subflow_req->msk)) {  in subflow_syn_recv_sock()
588 			mptcp_token_accept(subflow_req, mptcp_sk(new_msk));  in subflow_syn_recv_sock()
600 			owner = subflow_req->msk;  in subflow_syn_recv_sock()
605 			subflow_req->msk = NULL;  in subflow_syn_recv_sock()
1324 	struct mptcp_subflow_request_sock *subflow_req = mptcp_subflow_rsk(req);  in subflow_ulp_clone()  local
1329 	    (!subflow_req->mp_capable && !subflow_req->mp_join)) {  in subflow_ulp_clone()
1348 	if (subflow_req->mp_capable) {  in subflow_ulp_clone()
1353 		new_ctx->local_key = subflow_req->local_key;  in subflow_ulp_clone()
1354 		new_ctx->token = subflow_req->token;  in subflow_ulp_clone()
1355 		new_ctx->ssn_offset = subflow_req->ssn_offset;  in subflow_ulp_clone()
1356 		new_ctx->idsn = subflow_req->idsn;  in subflow_ulp_clone()
1357 	} else if (subflow_req->mp_join) {  in subflow_ulp_clone()
1358 		new_ctx->ssn_offset = subflow_req->ssn_offset;  in subflow_ulp_clone()
1361 		new_ctx->backup = subflow_req->backup;  in subflow_ulp_clone()
1362 		new_ctx->local_id = subflow_req->local_id;  in subflow_ulp_clone()
1363 		new_ctx->remote_id = subflow_req->remote_id;  in subflow_ulp_clone()
1364 		new_ctx->token = subflow_req->token;  in subflow_ulp_clone()
1365 		new_ctx->thmac = subflow_req->thmac;  in subflow_ulp_clone()