697 		struct mptcp_dss_ack_opt dss_ack_opt;  in mptcp_setup_opts()  local
698 		uint8_t dssoptlen = sizeof(dss_ack_opt);  in mptcp_setup_opts()
707 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
708 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
709 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
710 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
711 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_A | MDSS_M;  in mptcp_setup_opts()
712 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
717 		mptcp_output_getm_dsnmap32(so, off, &dss_ack_opt.mdss_dsn,  in mptcp_setup_opts()
718 		    &dss_ack_opt.mdss_subflow_seqn,  in mptcp_setup_opts()
719 		    &dss_ack_opt.mdss_data_len,  in mptcp_setup_opts()
722 		if ((dss_ack_opt.mdss_data_len == 0) ||  in mptcp_setup_opts()
723 		    (dss_ack_opt.mdss_dsn == 0)) {  in mptcp_setup_opts()
728 			DO_FIN(dss_ack_opt);  in mptcp_setup_opts()
731 		dss_ack_opt.mdss_dsn = htonl(dss_ack_opt.mdss_dsn);  in mptcp_setup_opts()
732 		dss_ack_opt.mdss_subflow_seqn =  in mptcp_setup_opts()
733 		    htonl(dss_ack_opt.mdss_subflow_seqn);  in mptcp_setup_opts()
734 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
735 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
737 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()
754 		struct mptcp_dss32_ack64_opt dss_ack_opt;  in mptcp_setup_opts()  local
755 		uint8_t dssoptlen = sizeof(dss_ack_opt);  in mptcp_setup_opts()
764 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
765 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
766 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
767 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
768 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_M | MDSS_A | MDSS_a;  in mptcp_setup_opts()
769 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
774 		mptcp_output_getm_dsnmap32(so, off, &dss_ack_opt.mdss_dsn,  in mptcp_setup_opts()
775 		    &dss_ack_opt.mdss_subflow_seqn,  in mptcp_setup_opts()
776 		    &dss_ack_opt.mdss_data_len,  in mptcp_setup_opts()
779 		if ((dss_ack_opt.mdss_data_len == 0) ||  in mptcp_setup_opts()
780 		    (dss_ack_opt.mdss_dsn == 0)) {  in mptcp_setup_opts()
785 			DO_FIN(dss_ack_opt);  in mptcp_setup_opts()
788 		dss_ack_opt.mdss_dsn = htonl(dss_ack_opt.mdss_dsn);  in mptcp_setup_opts()
789 		dss_ack_opt.mdss_subflow_seqn =  in mptcp_setup_opts()
790 		    htonl(dss_ack_opt.mdss_subflow_seqn);  in mptcp_setup_opts()
791 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
792 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
794 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()
811 		struct mptcp_dss_ack_opt dss_ack_opt;  in mptcp_setup_opts()  local
830 		bzero(&dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
841 		dss_ack_opt.mdss_copt.mdss_kind = TCPOPT_MULTIPATH;  in mptcp_setup_opts()
842 		dss_ack_opt.mdss_copt.mdss_len = dssoptlen;  in mptcp_setup_opts()
843 		dss_ack_opt.mdss_copt.mdss_subtype = MPO_DSS;  in mptcp_setup_opts()
844 		dss_ack_opt.mdss_copt.mdss_flags |= MDSS_A | MDSS_M | MDSS_F;  in mptcp_setup_opts()
845 		dss_ack_opt.mdss_ack =  in mptcp_setup_opts()
847 		dss_ack_opt.mdss_dsn =  in mptcp_setup_opts()
849 		dss_ack_opt.mdss_subflow_seqn = 0;  in mptcp_setup_opts()
850 		dss_ack_opt.mdss_data_len = 1;  in mptcp_setup_opts()
851 		dss_ack_opt.mdss_data_len = htons(dss_ack_opt.mdss_data_len);  in mptcp_setup_opts()
852 		memcpy(opt + optlen, &dss_ack_opt, sizeof(dss_ack_opt));  in mptcp_setup_opts()
854 			*((uint16_t *)(void *)(opt + optlen + sizeof(dss_ack_opt))) = dss_csum;  in mptcp_setup_opts()